JP6531089B2 - High post type work machine - Google Patents

Description

  The present invention relates to a so-called high post type work machine in which a revolving structure including a cab is arranged above the vertically extending posts for improving visibility.

  As one type of work machine, there is one in which a rotating body to which the work machine is attached is disposed at the upper part of a post extending vertically (hereinafter, "high post type work machine"). For example, high-post type working machines are installed on a revolving structure from the operator's cab located at a high place when loading or unloading a transport ship in the harbor of a port, sorting out scraps at a collection site of an industrial waste disposal site, There is an advantage to be able to look over the work place. Even in the case of digging work, high-post type work machines may be used when visibility is required.

  By the way, equipments, such as an engine, a revolving device, a fuel tank, and a hydraulic oil tank, are mounted in a revolving unit, and it is necessary to inspect equipments regularly or timely. One of such inspection operations is, for example, a discharge operation of dirty lubricating oil (waste oil) remaining in an oil pan of an engine or the like, condensed water (drain) collected at the bottom of a fuel tank or a hydraulic oil tank. Hereinafter, waste oil, drain and the like are collectively referred to as waste liquid.

  As a technique aiming at facilitation of the above-mentioned waste liquid discharge operation, in Patent Document 1, an annular waste liquid receptacle is provided so as to surround the outer periphery of the post, and the waste liquid receptacle receives the waste liquid from the equipment of the rotating body. The structure is disclosed. A discharge port is opened in the waste liquid receptacle, and a hose extends downward from this discharge port to near the ground. If you want to drain the waste fluid collected in the waste fluid reservoir at the time of inspection, install the waste fluid container at the tip of the hose and open the drain cock provided on the hose so that the waste fluid in the waste fluid reservoir can be led to the waste fluid container through the hose. It has become.

Patent No. 4494956

  The waste liquid receiver disclosed in Patent Document 1 is fixed to the post horizontally (perpendicular to the central axis of the post). Even if it is installed obliquely, the waste liquid gathers in a relatively low place and the waste liquid may overflow from the waste liquid receptacle, but by installing horizontally, the waste liquid corresponding to the capacity of the waste liquid receptacle can be received. It is also conceivable to make the waste liquid reservoir have a structure in which the bottom surface is inclined, but assuming a structure surrounding the periphery of a cylindrical post, it becomes a bowl-like shape of an elliptical ring, resulting in a special shape, impairing manufacturing ease. Furthermore, the waste liquid receiver needs to have a structure divided into a plurality of parts in the circumferential direction for attachment / detachment to / from the post, and the ease of manufacture is further reduced assuming a structure considering disassembly and assembly.

  It is an object of the present invention to provide a high post type working machine capable of receiving waste liquid corresponding to the capacity by the waste liquid receptacle while smoothly discharging the waste liquid of the waste liquid receptacle at the time of inspection, and facilitating production and removal of the waste liquid receptacle. It is to do.

In order to achieve the above object, according to the present invention, a vertically extending post, a pivoting body pivotably provided on the upper portion of the post, a work machine provided on the pivoting body, and a position lower than the pivoting body A high-post type work machine having a bottomed waste liquid receiver for receiving waste liquid discharged from the rotating body, corresponding to a plurality of post side brackets provided circumferentially on the outer peripheral surface of the post, and the post side brackets And a connection mechanism for vertically movably connecting the corresponding waste fluid receiving bracket to the post side bracket, and a bracket for the post side. comprising an adjusting mechanism for adjusting the position of the waste receiving side of the bracket corresponding to pairs vertically, at least one outlet provided in the receiving the waste liquid, the waste liquid receiving said post Together configured annularly surrounding the periphery, characterized in that it is divided into a plurality of parts in the circumferential direction.

  According to the present invention, the waste liquid corresponding to the capacity can be received by the waste liquid receptacle, while the waste liquid from the waste liquid receptacle can be discharged smoothly at the time of inspection, and moreover, the production and removal of the waste liquid receptacle can be facilitated.

It is a left side view showing the appearance structure of the high post type working machine concerning one embodiment of the present invention. It is a rear view showing the appearance structure of the high post type working machine concerning one embodiment of the present invention. It is a top view showing the appearance structure of the high post type working machine concerning one embodiment of the present invention. It is the figure which expanded and represented the post and peripheral element which were shown in FIG. It is arrow sectional drawing by the VV line | wire in FIG. It is an arrow line view by arrow VI in FIG. It is an enlarged view of the VII section in FIG. It is a figure of the post which removed the waste-liquid receptacle in FIG. It is a top view of the division parts of the waste fluid receptacle with which the high post type working machine concerning one embodiment of the present invention was equipped. It is an arrow line view by arrow X of FIG. It is an arrow line view by arrow XI in FIG. It is an arrow line view by arrow XII in FIG. It is arrow sectional drawing by the XIII-XIII line in FIG. It is a figure showing the state in which the waste fluid receptacle with which the high post type working machine concerning one embodiment of the present invention was equipped inclined. It is an enlarged view of the XV part of FIG. It is an enlarged view of the XVI part of FIG. It is a figure showing the structure of the bracket by the side of the post concerning one modification. It is a figure showing the structure of the bracket by the side of the post concerning other modifications.

  Embodiments of the present invention will be described below with reference to the drawings.

1. Work machine Fig. 1 is a left side view showing an appearance structure of a high post type work machine according to an embodiment of the present invention, Fig. 2 is a rear view, and Fig. 3 is a plan view. After that, the front side (left side in Fig. 1), back side (same right side), left side (left side in Fig. 2), right side (same right side) of the operator who arrived at the driver's seat before, after, left, The right side is referred to as the front side, the rear side, the left side, and the right side, respectively. Note that only a part of the work machine 30 described later is shown.

  The high post type working machine 100 (hereinafter, working machine 100) illustrated in FIGS. 1 to 3 is a hydraulic shovel as a base machine, and includes a traveling body 10, a post 19, a revolving body 20, and a working machine 30. . Although there are various applications of this work machine 100, it is used, for example, when unloading materials such as coal loaded in the hold of a transport ship at a port or the like. Each element of the work machine 100 will be described.

(1) Traveling Body The traveling body 10 is a foundation structure that supports the working machine 100 with respect to the ground, and the working machine 100 can self-propelledly move by the traveling body 10. The traveling body 10 may be a wheel type, but in the present embodiment is a crawler type, and includes the track frame 11 and the left and right traveling devices 12.

  The track frame 11 is formed in an H shape as viewed from above by the center frame 13 and the left and right side frames 14 (only the left side is shown). The side frames 14 are provided on the left and right sides of the center frame 13 and extend in the front and back direction. On the rear surface of the center frame 13, a flat pedestal 15 for mounting a waste liquid container X described later is provided to project rearward.

  The left and right traveling devices 12 are provided on each side frame 14 of the track frame 11, and include idle wheels 16, driving wheels 17, crawler belts (craters) 18, and a traveling hydraulic motor (not shown). The idler wheel 16 and the drive wheel 17 are rotatably provided at the front end and the rear end of each side frame 14, and the crawler belt 18 is wound around the idler wheel 16 and the drive wheel 17. A traveling hydraulic motor is individually connected to the left and right drive wheels 17, and the traveling body 10 travels by circulatingly driving the crawler belt 18 between the idle wheels 16 and the drive wheels 17 by the traveling hydraulic motor. The traveling hydraulic motor is driven in response to the operation of an operation lever device (not shown) in the driver's cab.

(2) Post The post 19 supports the rotating body 20 at a high position. The post 19 is a thick cylindrical body extending vertically, and its lower end is fixed on the center frame 13 of the track frame 11 using a bolt or the like. The length of the post 19 (the distance between the traveling body 10 and the rotating body 20) is at least larger than the diameter of the post 19.

(3) The revolving unit The revolving unit 20 includes the revolving frame 21, the cab 22, the counterweight 23, the power chamber 24, and the like.

  The pivoting frame 21 is a base frame of the pivoting body 20, and is provided on the top of the post 19 via the pivoting wheel 25. The turning wheel 25 is provided on the upper end side of the post 19 and is constituted by an inner ring, an outer ring, and a plurality of rolling elements (steel balls), although not shown in detail. The inner ring is fixed to the upper end portion of the post 19 and the outer ring is fixed to the lower portion of the revolving frame 21. A plurality of rolling elements are interposed between the inner ring and the outer ring. The inner ring is provided with an internal gear that meshes with the output shaft sprocket of the turning motor 56 (FIG. 3) provided on the turning body 20 side, and the outer ring is rotated relative to the inner ring by driving the turning motor 56. The attached pivoting body 20 is configured to pivot with respect to the post 19. Although an electric motor can be used as the swing motor 56, a hydraulic motor is used in the present embodiment.

  The driver's cab 22 is disposed at a front portion of the turning frame 21 at a position offset to one side (left side in this embodiment) in the left-right direction with respect to the turning center. Inside the driver's cab 22, besides the driver's seat where the operator sits, an operation device etc. for instructing the operation of the working machine 30, the traveling body 10, the revolving body 20 and the like are arranged.

  The counter weight 23 is a weight for balancing the weight with the work machine 30, and is provided at the rear end of the swing frame 21.

  The power chamber 24 is provided on the swing frame 21 so as to be located between the driver's cab 22 and the counterweight 23. In the power chamber 24, as shown in FIG. 3, an engine 51, a hydraulic pump 52, a radiator 53, a hydraulic oil tank 54, a fuel tank 55, a swing motor 56 and the like are accommodated.

(4) Work machine The work machine 30 is an articulated type front work device including a work arm and a work tool (for example, a grapple), and is provided on the swing body 20. The working arm includes, in addition to the boom 33 and the boom cylinder 34, an arm, an arm cylinder and an attachment cylinder not shown. The boom 33 is pivotally connected to the front portion of the revolving unit 20 in the vertical direction, and the arm is pivotally connected to the tip of the boom 33 and the work tool to the tip of the arm. The boom cylinder is connected to the revolving unit 20 and the boom 33, and the arm cylinder is connected to the boom 33 and the arm at both ends. The attachment cylinder is connected at its proximal end to the arm, while its distal end is connected to the distal end of the arm and the work tool via a link. The boom cylinder, the arm cylinder and the attachment cylinder are all hydraulic cylinders. As a work tool, a bucket, a magnet, a clamshell bucket, or the like may be used depending on the application of the work machine 100 instead of the grapple.

(5) Boarding Passage, etc. Since the swing body 20 is supported at a high position from the ground by the post 19, the work machine 100 is provided with a boarding pass for the worker or the like to walk. The boarding path includes floors 41 and 42 and steps 43 and 44. The lower floor 41 is fixedly provided at an intermediate position in the vertical direction of the post 19 and surrounds the periphery of the post 19 to widely cover the lower portion of the swing body 20. The upper floor 42 is provided on the left and right sides of the turning frame 21 and extends in the front-rear direction. The lower steps 43 are provided on the left and right sides of the floor 41, and the floor 41 diagonally downwards from the floor 41 toward the left and right crawler belts 18 of the traveling body 10 in the state where the longitudinal direction matches the traveling direction as shown. It extends to The upper steps 44 are provided on the left and right floors 42 and extend obliquely downward from the left and right floors 42 to the lower floor 41.

(6) Example of inspection target equipment The engine 51, the hydraulic pump 52, the radiator 53, the hydraulic oil tank 54, the fuel tank 55, the swing motor 56, etc. accommodated in the power chamber 24 are the equipment to be checked regularly or timely. It is a representative example of the class.

  The engine 51 is a motor for driving the hydraulic pump 52 and the like, and is disposed on the front side of the counterweight 23 at the rear of the swing frame 21. In the present embodiment, the engine 51 is housed in the power chamber 24 in a horizontally placed posture in which the output shaft is extended to the left and right. On the lower side of the engine 51, an oil pan 57 for storing lubricating oil for the engine 51 is provided.

  The hydraulic pump 52 is disposed on the left side of the engine 51, and the shaft is connected to the engine 51. By being driven by the engine 51, the hydraulic pump 52 sucks in the hydraulic oil in the hydraulic oil tank 54 and discharges it as pressure oil, and supplies the pressure oil to each hydraulic actuator mounted on the work machine 100.

  The radiator 53 is disposed on the right side of the engine 51. The radiator 53 is provided with a heat radiating portion through which engine cooling water for cooling the engine 51 flows, and the engine cooling water is cooled by radiating heat through the heat radiating portion.

  The hydraulic oil tank 54 stores hydraulic oil supplied to each hydraulic actuator, and is provided on the left side portion of the swing frame 21 so as to be located on the front side of the engine 51.

  The fuel tank 55 stores fuel supplied to the engine 51, and is provided at the right end portion of the revolving frame 21 so as to be located on the front side of the engine 51.

  The swing motor 56 is attached to the swing frame 21 so as to be located between the hydraulic fluid tank 54 and the fuel tank 55. The swing motor 56 is composed of a hydraulic motor and a reduction gear, and two swing motors are provided in the present embodiment. When rotational power output via the reduction gear of the turning motor 56 is transmitted to the inner ring of the turning wheel 25 described above, the turning body 20 turns about the turning center O (FIG. 3) with respect to the post 19.

(7) Waste fluid path As shown in FIG. 3, waste hoses 51a, 52a, 52a, 52a, and 52 are formed on the bottom of the oil pan 57 of the engine 51, the hydraulic pump 52, the radiator 53, the bottom of the hydraulic oil tank 54, and the bottom of the fuel tank 55. The proximal ends of 53a, 54a, 55a are connected. Further, the proximal end of the waste fluid hose 56Aa is connected to one swing motor 56, and the proximal end of a waste fluid hose 56Ba to be described later is connected to the other swing motor 56. The waste fluid hoses 51a, 52a, 53a, 54a, 55a, 56Aa and 56Ba constitute a waste fluid path for discharging waste fluid such as waste oil and drain discharged from the connected devices.

  FIG. 4 is an enlarged view of the post and peripheral elements shown in FIG. In FIG. 4, an outlet pipe 51 c is connected to the tip of a waste fluid hose 51 a connected to an oil pan 57 of the engine 51 via a hose joint 51 b. Similarly, outlet pipes 52c, 53c, 54c, 55c, 56Ac, 56Bc are connected to the ends of the waste fluid hoses 52a, 53a, 54a, 55a, 56Aa, 56Ba via hose joints 52b, 53b, 54b, 55b, 56Ab, 56Bb, respectively. Is connected. The hose couplings 51a, 52b, 53b, 54b, 55b, 56Ab, 56Bb are fixed to the upper surface of the turning frame 21. The outlet pipes 51c, 52c, 53c, 54c, 55c, 56Ac, 56Bc penetrate the swing frame 21 and project downward to the lower side of the swing frame 21. The outlet pipes 51c, 52c, 53c, 54c, 55c, 56Ac, 56Bc are provided with drain cocks 51d, 52d, 53d, 54d, 55d, 56Ad, 56Bd, respectively. The outlet pipes 51c, 52c, 53c, 54c, 55c, 56Ac, 56Bc are disposed along the same circumference centering on the turning center O of the turning body 20, regardless of the turning angle of the turning body 20. It is positioned above the annular waste liquid reservoir 70 (described later) as viewed from above. In FIG. 1 to FIG. 4, the attachment structure of the waste liquid receptacle 70 to the post 19 is not shown.

  The waste liquid receptacle 70 is provided with a discharge port 79 (FIG. 5), to which a proximal end (upper end) of a drain hose 58 as a discharge pipe is connected. By adjusting the diameter of the discharge port 79 to the base size of the waste liquid container X, for example, it is easy to attach a faucet attached to the waste liquid container X or the like. The drain hose 58 is a flexible pipe line for leading the waste fluid collected in the waste fluid receptacle 70 to the waste fluid container X. The drain hose 58 is piped along the post 19, extends up and down from the discharge port 79 to the vicinity of the pedestal 15 provided on the track frame 11, and is fixed to the outer peripheral surface of the post 19 by a plurality of hose clamps 59. When the waste liquid container X is placed on the pedestal 15 as shown in FIG. 4 etc., the tip (lower end) of the drain hose 58 can be inserted into the waste liquid container X. The waste liquid container X is an appropriate container such as an empty can. At the lower part of the drain hose 58, a drain cock 61 (FIG. 4) is provided at a position where an operator on the ground can open and close. The waste liquid container X need not necessarily be placed on the pedestal 15 of the track frame 11. For example, the lower end portion of the drain hose 58 may be inserted into the waste liquid container X placed on the ground.

(8) Waste liquid receiving FIG. 5 is a sectional view taken along line V-V in FIG. 4, FIG. 6 is a sectional view taken along arrow VI in FIG. 5, FIG. 7 is an enlarged view of part VII in FIG. 8 is a view of the post from which the waste liquid receptacle is removed in FIG. 9 is a plan view of the divided parts of the waste liquid receptacle, FIG. 10 is an arrow view by arrow X in FIG. 9, FIG. 11 is an arrow view by arrow XI in FIG. 9, and FIG. 12 is an arrow XII in FIG. FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. The waste liquid receiver 70 shown in these figures is a bottomed bowl-shaped member for receiving the waste liquid (such as the waste liquid falling from the outlet pipes 51c-56Bc) which has flowed out of the rotating body 20, and has an annular shape surrounding the post 19 (Concentric with the post 19). Further, the waste liquid receptacle 70 is located above the lower floor 41 and lower than the revolving unit 20 (for example, standing on the lower floor 41) so as to cover the vertically lower side of the outlet pipes 51c-56Bc described above. Of the operator's hand).

  The waste liquid reservoir 70 includes a bottom wall 71, an inner peripheral wall 72 and an outer peripheral wall 73, and a cross section obtained by vertically cutting any part in the circumferential direction has a U-shaped (U-shaped) shape with the upper side opened. (See Fig. 7 and Fig. 13 etc.). The bottom wall 71 is formed by forming a horizontal flat plate into a donut shape, and the inner peripheral wall 72 and the outer peripheral wall 73 are formed into a cylindrical shape by bending the flat plate. The inner peripheral wall 72 is connected to the inner peripheral portion of the bottom wall 71, and the outer peripheral wall 73 is connected to the outer peripheral portion of the bottom wall 71 in a fluid tight manner by welding or the like.

  Further, the annular waste liquid reservoir 70 is divided into a plurality of parts 70A, 70B, 70C, 70D in the circumferential direction (equally divided into four in the present embodiment). Parts 70A to 70D have substantially the same configuration, and the configuration of part 70A will be described here. As shown in FIGS. 9 to 13, a bracket 74 is attached to one end of the part 70A in the circumferential direction, and a bracket 75 is attached to the other end. The brackets 74 and 75 are L-shaped as viewed from the turning center O as shown in FIGS. 11 and 12 with a horizontal surface H fixed to the lower surface of the part 70A by welding or the like and a vertical surface V with the through hole 76 opened. Configured in a mold. The brackets 74 and 75 are also attached to the part 70A with the horizontal plane H extending in the direction away from the end of the part 70A starting from the vertical plane V. The vertical surface V of the bracket 74 on one side is located at a distance Z (for example, the same dimension as the thickness of the vertical surface) from one end of the part 70A (in other words, the other end of the adjacent part 70B) (see FIG. 12). On the other hand, the vertical plane V of the bracket 75 on the other side is located at the same distance Z from the other end of the part 70A (in other words, one end of the adjacent part 70D) (see FIG. 12).

  That is, when the parts 70A-70D are connected, the end portions of the bottom wall 71, the inner peripheral wall 72 and the outer peripheral wall 73 of the adjacent parts contact each other, and the bracket of the adjacent parts at a position offset by a distance Z 74, 75 are in face-to-face contact. Three through holes 76 are horizontally formed in the brackets 74 and 75 (the number of the through holes 76 is not limited), and by using the through holes 76 and fastening with a bolt and a nut 78 The waste liquid receiver 70 is assembled. At this time, the contact positions of the brackets 74 and 75 are offset from the end of the part, so that one end of the parts 70A-70D hangs on the top of the bracket 75, and the positioning accuracy in the vertical direction between the ends of the parts is ensured. It is done.

  In addition, a U-shaped cross section corresponding to the cross-sectional shape of the parts 70A-70D is provided along one end of the parts 70A-70D along the U-shaped inner wall surface consisting of the bottom wall 71, the inner peripheral wall 72 and the outer peripheral wall 73. A cover member 77 (see FIG. 12, FIG. 13 and the like) of the mold cross section is attached. The cover member 77 is a thin member straddling two adjacent parts, and even if a gap occurs between the parts, the gap is covered by the cover member 77. One discharge port 79 described above is provided in the bottom wall 71 of the part 70A. The outlet 79 can be opened and closed by a stopper 80. In addition, although the discharge port 79 can be provided also in other parts 70B-70D, the discharge port 79 is not provided in parts 70B-70D in this embodiment. The structures of the parts 70A-70D are common except for the presence or absence of the discharge port 79.

(9) Coupling mechanism Next, the attachment structure of the waste liquid receptacle 70 to the post 19 will be described. As shown in FIG. 8, a plurality (four in this example) of brackets 81 are attached to the outer peripheral surface of the post 19 in the circumferential direction by welding or the like.

  The post-side bracket 81 corresponds to the above-described bracket 75 provided with a plurality (four in this example) in the waste liquid receptacle 70. That is, by connecting the bracket 81 on the post side and the bracket 75 on the waste liquid receiving side, the waste liquid receptacle 70 is attached to the post 19. Further, as shown in FIG. 7 and FIG. 8, the bracket 81 has a side closer to the post 19 (radially inward in the radial direction of the post 19) as shown in FIG. 7 and FIG. It is made longer vertically than the outer part. In the present embodiment, the portion close to the post 19 (inward in the radial direction of the post 19) is extended upward with respect to the other portions to avoid interference of the bracket 75 on the waste liquid receiving side with the bolt / nut 78.

  The connection mechanism for connecting the brackets 75 and 81 includes a nut 82 welded to the bracket 75 on the waste liquid receiving side, an elongated hole 83 provided on the bracket 81 on the post side, a bolt 84 and the like. The nut 82 is welded to the opposite surface of the adjacent part of the bracket 75 with the bracket 74, and in this example, two are arranged vertically. The bracket 75 is provided with a through hole (not shown) corresponding to the screw hole of the nut 82. The long holes 83 are vertically provided to the pitch of the two nuts 82.

  When the brackets 75 and 81 are connected, the post-side bracket 81 is opposed to the bracket 74 on the side opposite to the bracket 74 of the adjacent part, and the bolt 84 is tightened to the nut 82 through the long hole 83 of the bracket 81. As a result, the bracket 81 on the post side is sandwiched between the bracket 75 on the waste liquid receiving side and the bolt 84, the brackets 71 and 84 are fixed to each other, and the waste liquid receptacle 70 is fixed to the post 19. A washer may be interposed between the bolt 84 and the bracket 81. Thus, the connecting mechanism is used to tighten the bolt 84 passed through the long hole 83. If the bolt 84 is loosened, the movement of the bolt 84 within the range of the long hole 83 is permitted. This connection mechanism constitutes a mechanism for vertically movably connecting the corresponding waste fluid receiving side bracket 75 to the post side bracket 81.

(10) Adjustment Mechanism Next, a mechanism for adjusting the inclination of the waste liquid receptacle 70 will be described. As described above, since the position of the bracket 75 on the waste liquid receiving side can move up and down with respect to the bracket 81 on the post side, the waste liquid receiver 70 can be adjusted by adjusting the position of the bracket 75 corresponding to the bracket 81 up and down. Can be adjusted. This adjustment mechanism comprises an elongated hole 85 and adjustment bolt 86 provided on the post side bracket 81, and a pin 87 and the like provided on the waste solution receiving side bracket 75.

  The elongated hole 85 extends vertically in line with the elongated hole 83. The height of the upper end of the long hole 83 is the same as that of the long hole 83, and the long hole 83 for guiding the two bolts 84 is formed shorter in the longitudinal direction by about the pitch of the two bolts 84. The elongated hole 85 is located radially inward of the post 19 with respect to the elongated hole 83.

  The pin 87 is fixed to the bracket 75 on the waste liquid receiving side by welding or the like, protrudes toward the corresponding bracket 81 on the post side, and is inserted into the long hole 85 in a state where the brackets 75 and 81 are connected. . Further, in the bracket 81 on the post side, screw holes 89 (FIG. 7 and the like) passing through the inside of the plate thickness are provided. The screw hole 89 vertically penetrates from the lower surface of the bracket 81 to the lower inner wall surface of the elongated hole 85.

  The adjusting bolt 86 is screwed into the screw hole 89 from the lower side, and when its tip protrudes into the internal space of the elongated hole 85, it abuts on the lower half side of the outer peripheral surface of the pin 87.

  With the above configuration, for example, the pin 87 is supported at the lower end of the inner wall of the elongated hole 85 normally, and the adjusting bolt 86 is tightened so that the tip of the adjusting bolt 86 protrudes into the elongated hole 85 by the adjusting bolt 86 87 is pushed up. To prevent the adjustment bolt 86 from being loosened, screw the adjustment bolt 86 into the screw hole 89 via the nut 88 and tighten the nut 88 so that the adjustment bolt 86 can be firmly fixed to the bracket 75. Is preferred.

(11) Sealing Mechanism In order to allow inclination of the waste liquid receptacle 70 with respect to the post 19, a gap is present between the inner peripheral surface of the waste liquid receptacle 70 and the outer peripheral surface of the post 19. The larger the gap is, the larger the inclination angle of the waste liquid receptacle 70 can be. The inventor of the present invention has confirmed that the working oil at normal temperature flows at an inclination of about 1.8 degrees with respect to the horizontal, and the waste liquid receptacle 70 and the post 19 so that the waste liquid receptacle 70 can be inclined 1.8 degrees or more. There is a gap between the However, since the inner diameter of the waste fluid receiver 70 can not be made larger than the disposition diameter of the outlet pipes 51c-56Bc, which is the main outlet of waste fluid of the revolving unit 20, the upper limit of the gap between the waste fluid receiver 70 and the post 19 The dimensions are limited by the positional relationship with the outlet pipes 51c-56Bc. In the present embodiment, a seal member 90 (FIG. 7 or the like) for sealing the gap between the waste liquid receptacle 70 and the post 19 is provided. The seal member 90 is attached to the upper portion of the inner circumferential wall 72 of the waste liquid receptacle 70 in a ring shape along the inner circumferential wall 72. The diameter of the ring formed by the seal member 90 decreases toward the top, and the tip (upper end in cross section) of the seal member 90 contacts the receiving surface of the post 19 across the gap between the waste liquid receiver 70 and the post 19 ing. The seal member 90 is formed of a flexible material, and deforms flexibly in response to a change in the inclination angle of the waste liquid receptacle 70.

2. Work procedure When operating the working machine 100, the worker goes up from the ground to the track 18 and climbs on the floor 41 via the step 43 and then climbs on the floor 42 from the floor 41 via the step 44, and then the floor 42 to get into the cab 22. And by sitting on the driver's seat and operating the operation device 30 while operating the operation device appropriately to operate the working machine 30, the work according to the application of the work machine 100 (for example, unloading of the load of the transport ship) is performed be able to. Since the revolving unit 20 is provided on the post 19, the operator in the operator's cab 22 can see from a high position the place where the working tool is used (for example, the inside of the hold of the transport ship) and smoothly proceed with the work it can. During operation, for example, the drain cocks 51d to 56Bd of the outlet pipes 51c to 56Bc are opened, and the waste liquid receiver 70 is horizontal.

  On the other hand, when the inspection work of the airframe (in this case, the waste liquid recovery work) is performed, the operator ascends on the floor 41 and confirms the accumulation state of the waste liquid of the waste liquid receiver 70. The waste liquid receiver 70 collects waste liquid of devices falling from the outlet pipes 51c-56Bc during operation. In addition, in the turning mechanism for turning the turning body 20, an annular grease bus (not shown) is provided along the inner ring to lubricate the engagement between the inner ring of the turning ring 25 and the output shaft sprocket of the turning motor 56. ) Is provided. Since grease bus can not be closed mechanically, grease splashed by rotation of the sprocket may be splashed to the outside of grease bus. When the grease leaks from between the turning wheel 25 and the post 19, not only the dripping grease but also the grease transmitted along the outer peripheral surface of the post 19 is guided by the seal member 90 and received by the waste liquid receiver 70. When collecting the waste liquid of the waste liquid receiver 70, the operator gets down to the ground (or asks another worker), installs the waste container X on the pedestal 15, inserts the tip of the drain hose 58 into the waste container X, Open the drain cock 61. Further, when the outlet 80 of the waste liquid receptacle 70 has a plug 80, the plug 80 is removed. As a result, the waste fluid from the waste fluid reservoir 70 flows out from the discharge port 79 and flows into the waste fluid container X through the drain hose 58. If the waste liquid from the waste liquid receptacle 70 is sufficiently discharged, the reverse procedure is repeated to complete the inspection work.

  However, when the waste liquid receiver 70 is horizontal, if the liquid level of the waste liquid receiver 70 is low, discharge of the waste liquid may not proceed. In such a case, the operator loosens four surrounding bolts 84 (FIG. 7 etc.) and rotates the selected adjustment bolt 86 to position the waste liquid in the vertical direction relative to the bracket 81 on the post side of the bracket 75 on the waste liquid receiving side. Adjust the For example, the adjustment bolt 86 of the bracket 75 on the post side on the opposite side (the upper side in FIG. 5) of the discharge port 79 is tightened to push up the pin 87 on the waste receiving side to tilt the waste receptacle 70.

  FIG. 14 is a view showing the waste liquid reservoir 70 in an inclined state, FIG. 15 is an enlarged view of a portion XV in FIG. 14, and FIG. 16 is an enlarged view of a portion XVI in FIG. FIG. 14 corresponds to the illustration of FIG. 6 as viewed from the right in the drawing. In FIG. 15, the pin 87 remains supported at the lower end of the elongated hole 85, but in FIG. 16, the adjusting bolt 86 pushes up the pin 87 largely. Therefore, the waste liquid receiver 70 is relatively high on the side far from the discharge port 79, and is inclined to descend toward the discharge port 79. As a result, the waste liquid stagnating in the waste liquid reservoir 70 flows, flows into the discharge port 79, and is collected in the waste liquid container X. After that, follow the above procedure in reverse to complete the inspection work.

  Although not particularly shown, the adjustment bolts 86 at the other two places (the brackets 75 at the left and right sides in FIG. 5 in the above example) need not necessarily be operated. However, when the load of the waste fluid receptacle 70 is supported at four points while the waste fluid receptacle 70 is inclined, the adjustment bolt 86 is tightened to a position where it hits the pin 87. Further, since there are four adjustment bolts 86 at 90 degree pitch in the circumferential direction, the inclination direction of the waste liquid receptacle 70 can be arbitrarily adjusted according to the scene by appropriately operating these. The adjusting bolt can also be operated with a hand tool such as a spanner, but it is possible to easily and quickly tilt the waste liquid reservoir 70 by rotating the power tool.

3. Effect (1) Effluent of Waste Liquid According to the present embodiment, by keeping the waste liquid reservoir 70 horizontal normally, collection of waste liquid at one location is suppressed, and waste liquid corresponding to the capacity of the waste liquid reservoir 70 is received. be able to. At this time, since the waste liquid receptacle 70 is formed in an annular shape surrounding the periphery of the post 19, the waste liquid receptacle 70 can receive the waste liquid regardless of the turning angle of the turning body 20. On the other hand, at the time of inspection, the waste liquid can be smoothly introduced and discharged to the discharge port 79 by appropriately operating the adjusting bolt 86 to incline the waste liquid receptacle 70.

(2) Ease of Manufacture Since the waste liquid receiver 70 is basically in the horizontal position, the structure can be simplified. In the present embodiment, it is an annular configuration having substantially the same cross-sectional shape along the entire circumference. Therefore, the waste liquid receptacle 70 can be easily manufactured as compared with the waste liquid receptacle (in this case, an oval special shape in this case) fixed to the post in an inclined state.

(3) Ease of Detachment Since the waste liquid receptacle 70 is divided in the circumferential direction, it can be easily detached and attached to the post 19.

(4) Recovery efficiency Since the waste liquid reservoir 70 is configured to be inclined, a gap is secured between the waste liquid reservoir 70 and the post 19. Therefore, if the waste liquid 70 flows through the outer peripheral surface of the post 19, the waste liquid passes through the gap between the waste liquid 70 and the post 19. It can not be received by the waste liquid receiver 70. On the other hand, in the present embodiment, since the gap between the waste liquid receiver 70 and the post 19 is sealed by the seal member 90, the waste liquid along the outer peripheral surface of the post 19 is also guided by the seal member 90 and received by the waste liquid receiver 70. Can. As a result, the collection efficiency of the waste liquid is improved, and the burden of cleaning and the like can be reduced by suppressing the diffusion of the waste liquid more than necessary.

(5) Burden of Waste Liquid Recovery Work If waste liquid is directly received from the outlet pipe 51c-56Bc in the waste liquid container X, the waste liquid container X must be brought between the ground and the floor 41 with the liquid waste container X in place. This operation is laborious because the waste liquid container X after waste liquid recovery becomes heavy. In addition, when the waste liquid container X from which the waste liquid is collected is lowered from the floor 41, the worker may overflow the waste liquid.

  On the other hand, in the present embodiment, since the waste liquid is introduced from the waste liquid receptacle 70 to the waste liquid container X installed near the ground via the drain hose 58, it is not necessary to go up to the floor 41 with the waste liquid container X. Therefore, the burden of the waste liquid recovery work can be greatly reduced. In addition, since the risk of spilling the waste liquid from the waste liquid container X can be reduced, the environment at the work site can be well maintained and the burden of cleaning can be reduced.

(6) Leakage suppression of waste liquid The waste liquid may leak if there is a gap between adjacent parts because the waste liquid receiver 70 has a divided structure, but even if there is a gap between adjacent parts, the thin cover member 77 Since it straddles and covers, it is possible to suppress the leakage of waste liquid.

(7) Commonality of parts Assuming that spare parts are prepared in preparation for replacement of any of the parts 70A-70D, the discharge port 79 is selected depending on which part 70A-70D is to be replaced. The necessity is different. However, since the discharge port 79 can be closed by the plug 80, if spare parts having stock the discharge port 79 are stocked, the discharge port 79 can be used even as a part requiring the discharge port 79 or as an unnecessary part. Can smoothly carry out the work of replacing parts when necessary.

4. Modification FIG. 17 and FIG. 18 are views showing the structure of a bracket on the post side according to a modification, corresponding to FIG. The difference between these modifications and the embodiment described above is only the shape of the bracket on the post side, and the other parts are denoted by the same reference numerals as in FIG.

  The bracket 81A on the post side according to the modification shown in FIG. 17 is formed in a rectangular shape as viewed from the circumferential direction as shown in FIG. 17 and is located on the side closer to the post 19 (inward in the radial direction of the post 19) The dimension in the vertical direction of the part on the far side (radial outer side) is the same. When it is not necessary to lengthen the welded portion as shown in FIG. 7, a bracket 81A having a shape as shown in FIG. 17 may be used. There is a merit of facilitation of manufacture by simplification of the bracket shape.

  The bracket 81B on the post side according to the modification shown in FIG. 18 is different from the bracket 81 of FIG. 7 in that the lower portion of the elongated hole 85 is cut away, and the other is the bracket 81 of FIG. Is the same as Although the welded portion to the post 19 is shorter than the bracket 81 of FIG. 7 due to the notch, the length of the screw hole 89 is also shortened at the same time. It is an advantage that the adjustment bolt 86 can be shortened as the screw hole 89 is shortened. In addition, if the positional relationship of the long holes 83 and 85 is reversed, the length of the welding part equivalent to the bracket 81 of FIG. 7 can also be ensured.

5. Others In the above example, the bottom wall 71 of the waste liquid receiver 70 is formed of a horizontal flat plate, but the bottom wall 71 is not limited to a flat plate, and may have, for example, a V-shaped cross section or a U-shaped cross section. good.

  Although the structure in which the discharge port 79 of the waste liquid receptacle 70 and the waste liquid container X are connected by the drain hose 58 has been described as an example, the drain hose 58, the pedestal 15 and the like may be omitted. In this case, for example, a cock or the like is attached to the discharge port 79, the waste liquid container X is placed on the floor 41 so as to come directly below the cock, the plug 80 is removed and the cock is opened to collect the waste liquid of the waste liquid receiver 70 in the waste liquid container X can do. On the contrary, the structure in which only one drain hose 58 is provided according to the number of discharge ports 79 has been illustrated, but in the case where the waste liquid receptacle 70 is provided with a plurality of discharge ports 79, the number of It is also conceivable to provide a drain hose 58. When a plurality of drain hoses 58 are provided, each may be configured to connect the waste liquid container X and the discharge port 79, but a configuration in which a plurality of drain hoses 58 are merged and the connection portion to the waste liquid container X is combined into one. It can also be done. The number of waste liquid containers X that can be installed at one time is not limited to one.

  Further, the connection mechanism of the brackets 75 and 81 and the adjustment mechanism of the position of the bracket 75 with respect to the bracket 81 are not limited to the structures described in the above examples. For example, the elongated hole 83 constituting the connecting mechanism may be replaced by a slit opened at the lower side. The elongated holes 83 and the slits are not limited to the vertically extending configuration, and may be slanted or arced in accordance with the locus drawn by the bolt 84 when the waste liquid reservoir 70 is inclined. For example, a clamp mechanism can be substituted for the bolt 84 constituting the connection mechanism. In this case, since restraint of the waste liquid receptacle 70 with respect to the post 19 can also be performed by the pin 87 and the elongated hole 85, a configuration in which the elongated hole 83 is omitted may be considered. The adjustment mechanism has a configuration in which the long hole 85 is provided in the bracket 81 on the post side and the pin 87 is provided in the bracket 75 on the waste liquid reception side, but the pin 87 in the bracket 81 on the post side and the long hole in the bracket 75 for waste liquid A configuration provided with 85 is also conceivable. In this case, the adjustment bolt 86 attaches the adjustment bolt 86 to the waste solution receiving bracket 75 so as to access the elongated hole 85 from above. As a result, when the adjusting bolt 86 is closed, the waste liquid receptacle 70 is raised with the pin 87 as a base point. In addition, it is also conceivable to use a lifting mechanism such as a jack or a cylinder instead of the adjusting bolt 86.

  Moreover, although the working machine 100 which made the traveling body 10 a basic structure was mentioned as the example and demonstrated in the above example, it can also be set as the structure which the post 19 serves as a basic structure. That is, it is a fixed type working machine in which the revolving unit 20 is attached to the upper part of the post 19 fixed to the ground. In this case, the working machine is not limited to the installation location port of the working machine, but the working machine may be installed, for example, on the deck of a barge, the ground of an excavation site or an industrial waste disposal site. The present invention can be applied to working machines such as these, and similar effects can be obtained.

19 post 20 rotating body 30 working machine 70 waste liquid receiver 70A-70D parts 75 brackets (bracket (bracket waste side bracket) 77 cover member 79 discharge port 80 plug 80 plug 81, 81A, 81B: bracket (bracket on post side), 82: nut (connection mechanism), 83: long hole (connection mechanism), 84: bolt (connection mechanism), 85: long hole (adjustment mechanism), 86: 86 Adjustment bolt (adjustment mechanism), 87 ... pin (adjustment mechanism), 88 ... nut (adjustment mechanism), 89 ... screw hole (adjustment mechanism), 90 ... seal member, 100 ... high post type working machine

Claims (4)

A vertically extending post, a pivoting body pivotably provided at an upper portion of the post, a work machine provided to the pivoting body, and a bottom located below the pivoting body and receiving waste fluid discharged from the pivoting body High post type work machine equipped with
A plurality of post-side brackets provided circumferentially on the outer peripheral surface of the post;
A plurality of waste solution receiving side brackets provided circumferentially in the waste solution receiving side corresponding to the post side brackets;
A coupling mechanism for vertically movably coupling a corresponding waste fluid receiving side bracket to the post side bracket;
And adjusting mechanism for adjusting the position of the waste receiving side of the bracket corresponding to pairs to the post side of the bracket in the vertical,
At least one outlet provided in the waste liquid receiver,
A high post type working machine characterized in that the waste liquid receptacle is formed in an annular shape surrounding the periphery of the post, and is divided into a plurality of parts in the circumferential direction.   The high post type working machine according to claim 1, wherein a gap for allowing the waste fluid receiver to incline is present between the waste fluid receiver and the post, and a flexible seal member for sealing the gap is used. A high post type working machine characterized by having.   The high post type working machine according to claim 1, further comprising: a cover member formed along the inner wall surface of the part and attached so as to straddle two parts adjacent in the circumferential direction. High post type work machine.   The high post type working machine according to claim 1, further comprising a plug for opening and closing the discharge port.

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