CN113401818B - Super-lifting pulley bracket device, arm support and crane - Google Patents
Super-lifting pulley bracket device, arm support and crane Download PDFInfo
- Publication number
- CN113401818B CN113401818B CN202110872212.9A CN202110872212A CN113401818B CN 113401818 B CN113401818 B CN 113401818B CN 202110872212 A CN202110872212 A CN 202110872212A CN 113401818 B CN113401818 B CN 113401818B
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- Prior art keywords
- bracket
- superlift
- limiting piece
- arm
- pulley
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a super-lifting pulley bracket device, an arm support and a crane, wherein the super-lifting pulley bracket device comprises a fixing device, a bracket, a first limiting piece, a second limiting piece and a third limiting piece, and the fixing device is suitable for being arranged on a super-lifting arm; the bracket is rotationally connected with the fixing device, the first limiting piece is arranged on the bracket, the second limiting piece is suitable for being arranged on the crane boom, and the third limiting piece is arranged on the fixing device; when the super-lifting arm is in a folding and unfolding state, the first limiting piece and the second limiting piece are contacted or are in clearance arrangement, and the bracket is contacted with the third limiting piece so as to keep balance of the bracket under the dead weight; when the super lift arm is used for lifting the frame, the bracket is separated from the third limiting piece, and the first limiting piece and the second limiting piece are suitable for being contacted so that the bracket is supported on the lift arm.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a super-lifting pulley bracket device, an arm support and a crane.
Background
At present, an over-lifting device is used on a crane and comprises an over-lifting arm and an over-lifting pulley bracket, and when the over-lifting device is used, the over-lifting arm needs to rotate to lift a web around a hinging point of the over-lifting arm and the lifting arm, and then the pulley can be lifted off the over-lifting pulley bracket. In the process of lifting the super-lifting arm, the super-lifting pulley bracket cannot rotate together with the super-lifting arm, otherwise, the pulley can rotate together, so that the pulley cannot be supported or directly falls off from the bracket, and accidents are caused. At present, before the super-lift arm plays the width of cloth, all need to shift to the jib loading boom and fix to guarantee that super-lift arm plays the width of cloth in-process, the position of bracket and jib loading boom is motionless. However, the process of transferring the bracket to the boom for fixing is complicated and the installation efficiency is low.
Disclosure of Invention
The invention solves the problem of eliminating the step of transferring the bracket to the lifting arm for fixing when the super lifting arm lifts the frame so as to improve the installation efficiency.
In order to solve the problems, the invention provides a super-lift pulley bracket device, which comprises a fixing device, a bracket, a first limiting piece, a second limiting piece and a third limiting piece, wherein the fixing device is suitable for being arranged on a super-lift arm; the bracket is rotationally connected with the fixing device, the first limiting piece is arranged on the bracket, the second limiting piece is suitable for being arranged on the lifting arm, and the third limiting piece is arranged on the fixing device;
when the super-lifting arm is in a retraction state, the first limiting piece and the second limiting piece are in contact or are in clearance arrangement, and the bracket is in contact with the third limiting piece so as to keep balance of the bracket under the dead weight;
when the super lift arm is used for lifting, the bracket is separated from the third limiting piece, and the first limiting piece and the second limiting piece are suitable for contacting so that the bracket is supported on the lift arm.
Optionally, the first limiting piece comprises a first plate, and the first plate is connected with the bracket; the second limiting piece comprises a second plate, the second plate is suitable for being connected with the lifting arm, and the first plate is suitable for being supported on the second plate when the super lifting arm lifts.
Optionally, the superlift pulley bracket device further comprises a first fastener, the fixing device is provided with a mounting groove and a first hole structure, the first hole structure is communicated with the mounting groove, the bracket is provided with a second hole structure, a part of the bracket is suitable for extending into the mounting groove, and the first fastener is suitable for penetrating through the first hole structure and the second hole structure to connect the bracket and the fixing device.
Optionally, the bracket includes interconnect's first connecting portion and second connecting portion, first connecting portion are equipped with the second hole structure, first connecting portion are suitable for stretching into in the mounting groove, second connecting portion are equipped with first locating part, when super lift arm is in super lift state, fixing device with the side contact of second connecting portion deviating from the lift arm is perhaps to be the clearance setting.
Optionally, the third limiting piece is disposed in the mounting groove, the third limiting piece is located on the rotation path of the first connecting portion, and the third limiting piece is adapted to abut against the first connecting portion.
Optionally, the second connecting portion includes first body, second body and third body, first body with first connecting portion connects, the second body with the second body interval set up in on the first body, the first body is equipped with first draw-in groove, the second body is equipped with the second draw-in groove, first draw-in groove with the second draw-in groove is suitable for supporting pulley assembly, so that pulley assembly is located between the first body with the second body.
Optionally, the superlift pulley bracket device further comprises a second fastener, wherein a third hole structure is formed in the bracket, the second fastener is suitable for penetrating through the third hole structure, and the second fastener is suitable for being connected with the pulley assembly.
The invention also provides an arm support, which comprises the super-lifting pulley bracket device.
Optionally, the arm support further comprises a superlift arm and a lift arm, the superlift arm is rotationally connected with the lift arm, the fixing device of the superlift pulley bracket device is arranged on the superlift arm, and the bracket of the superlift pulley bracket device and the rotation axis of the fixing device are coaxially arranged with the rotation axes of the superlift arm and the lift arm.
The invention also provides a crane, comprising the super-lift pulley bracket device and/or the arm support.
Compared with the prior art, the invention has the beneficial effects that:
the fixing device is arranged on the super-lifting arm; the bracket is rotationally connected with the fixing device, and as the first limiting piece is arranged on the bracket, the second limiting piece is suitable for being arranged on the crane boom, and the third limiting piece is arranged on the bracket; therefore, when the super-lifting arm is in a retracted state, the first limiting piece and the second limiting piece are in contact or are in clearance arrangement, and the bracket is in contact with the third limiting piece so as to keep balance of the bracket under the dead weight; when the super-lift arm is used for lifting the frame, the bracket is separated from the third limiting piece, and the first limiting piece and the second limiting piece are suitable for being contacted to enable the bracket to be supported on the lift arm.
Drawings
FIG. 1 is an exploded view of one embodiment of a superlift pulley bracket device of the present invention;
FIG. 2 is a schematic view of the connection between the fixing device and the superlift arm according to the present invention;
FIG. 3 is a schematic view of another view of the bracket according to the present invention;
FIG. 4 is a schematic view of an assembly of one embodiment of a bracket and pulley assembly of the present invention;
FIG. 5 is a schematic view of an assembly of a second stop member and one embodiment of a lift arm of the present invention;
FIG. 6 is a schematic view of the position of the super lift arm in the retracted and extended position with the lift arm and super lift pulley carriage assembly of the present invention;
fig. 7 is a schematic view of the position of the superlift arm and the boom and superlift sheave bracket assembly of the present invention in the superlift condition.
Reference numerals illustrate:
1. a fixing device; 11. a mounting groove; 2. a bracket; 21. a first connection portion; 211. a second aperture structure; 22. a second connecting portion; 221. a first body; 222. a second body; 2221. a third pore structure; 2222. a first clamping groove; 223. a third body; 2231. a second clamping groove; 3. a first limiting member; 4. a second limiting piece; 5. a third limiting member; 6. a first fastener; 7. a second fastener; 8. a pulley assembly; 81. a movable pulley; 82. a wheel carrier; 83. a connecting shaft; 9. a boom; 10. and (5) super lifting the arm.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The Z-axis in the drawing represents the vertical direction, i.e., the up-down position, and the forward direction of the Z-axis (i.e., the arrow of the Z-axis points) represents the up direction, and the reverse direction of the Z-axis represents the down direction; the X-axis in the drawing represents the horizontal direction and is designated as the left-right position, and the forward direction of the X-axis represents the right side and the reverse direction of the X-axis represents the left side; the Y-axis in the drawings is shown in a front-to-rear position, with the forward direction of the Y-axis representing the rear side and the reverse direction of the Y-axis representing the front side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented, configured or operated in a particular orientation, and therefore should not be construed as limiting the invention.
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", and the like in the embodiments indicate directional terms, and are merely used for simplifying the description based on the positional relationship of the drawings in the specification, and do not represent that the elements and devices and the like referred to must be operated according to the specific orientations and the operations and methods, configurations defined in the specification, and such directional terms do not constitute limitations of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a superlift pulley bracket device, which comprises a fixing device 1, a bracket 2, a first limiting piece 3, a second limiting piece 4 and a third limiting piece 5, wherein the fixing device 1 is suitable for being arranged on a superlift arm 10; the bracket 2 is rotatably connected with the fixing device 1, the first limiting piece 3 is arranged on the bracket 2, the second limiting piece 4 is suitable for being arranged on the lifting arm 9, and the third limiting piece 5 is arranged on the fixing device 1; when the super lifting arm 10 is in a retracted state, the first limiting piece 3 and the second limiting piece 4 are in contact or are in clearance arrangement, and the bracket 2 is in contact with the third limiting piece 5 so as to keep the bracket 2 balanced under the dead weight; when the super lift arm 10 is lifted, the bracket 2 is separated from the third limiting member 5, and the first limiting member 3 and the second limiting member 4 are adapted to contact so that the bracket 2 is supported on the lift arm 9.
In this embodiment, the bracket 2 and the fixing device 1 are rotatably connected by a pin (described later), and as shown in fig. 2, the rotational axes of the bracket 2 and the fixing device 1 are adapted to be coaxial with the rotational axes of the superlift arms 10 and the lift arms 9, whereby the fixing device 1 and the bracket 2 are coaxially rotated when the superlift arms 10 are rotated relative to the lift arms 9, thereby not interfering with the rotation of the superlift arms 10. The super lift arm 10 being in the retracted state refers to a state when the super lift arm 10 is not in operation, that is, a state in which the super lift arm 10 is supported in parallel on the lift arm 9. After the superlift pulley bracket device of the embodiment is adopted, the fixing device 1 is arranged on the superlift arm 10; the bracket 2 is rotatably connected with the fixing device 1, and as the first limiting piece 3 is arranged on the bracket 2, the second limiting piece 4 is suitable for being arranged on the crane arm 9, and the third limiting piece 5 is arranged on the bracket 2; thus, when the super-lifting arm 10 is in the retracted state, the first limiting piece 3 and the second limiting piece 4 are in contact or are in clearance arrangement, and the bracket 2 is in contact with the third limiting piece 5 so as to keep the bracket balanced under the dead weight; when the super lift arm 10 is used for lifting the web, the bracket 2 is separated from the third limiting piece 5, and the first limiting piece 3 and the second limiting piece 4 are suitable for contacting to enable the bracket 2 to be supported on the lift arm 9.
As shown in fig. 1 and 4, the first limiting member 3 includes a first plate, and the first plate is connected to the bracket 2; the second stop 4 comprises a second plate member adapted to be connected to the boom 9, and the first plate member is adapted to be supported on the second plate member when the superlift arm 10 is reeled.
In this embodiment, the superlift pulley bracket device is generally located above the side of the boom 9, so the first plate member is disposed on the side end surface of the bracket 2 facing the boom 9, and may be welded, bolted, or the like. The second plate is arranged above the boom 9, which can also be welded, bolted or otherwise, and when the super boom 10 is in the retracted state, the bracket 2 is mainly abutted against the third limiting member 5 to keep balance under the dead weight, at this time, the first plate and the second plate are in contact or are in gap arrangement, and preferably, the first plate and the second plate are just in contact.
In this embodiment, the first plate member and the second plate member may be provided with a damper plate on the side facing each other, whereby the damper plate can reduce the contact stress between the first plate member and the second plate member when the superlift arm 10 is set up. Meanwhile, a reinforcing plate is provided between the first plate and the side wall of the bracket 2, and the number of reinforcing plates is not limited, and may be one, two, or three, etc. Therefore, under the action of the reinforcing plate, the strength of the junction of the first plate and the bracket 2 can be enhanced, and the phenomenon that the first plate and the bracket 2 break at the junction is avoided.
As shown in fig. 1, 2 and 3, the superlift pulley bracket device further comprises a first fastener 6, the fixing device 1 is provided with a mounting groove 11 and a first hole structure, the first hole structure is communicated with the mounting groove 11, the bracket 2 is provided with a second hole structure 211, a part of the bracket 2 is suitable for extending into the mounting groove 11, and the first fastener 6 is suitable for penetrating through the first hole structure and the second hole structure 211 to connect the bracket 2 and the fixing device 1.
In this embodiment, the first fastener 6 is a pin, the fixing device 1 is provided with a mounting groove 11 and a first hole structure, wherein the first hole structure is communicated with the mounting groove 11, the bracket 2 is provided with a second hole structure 211, a part of the bracket 2 is suitable for extending into the mounting groove 11, the mounting groove 11 plays a guiding role, it can limit the displacement of the bracket 2 in the X-axis direction, and when the first hole structure and the second hole structure 211 are aligned, the pin penetrates through the first hole structure and the second hole structure 211 to connect the bracket 2 and the fixing device 1. So arranged, the carrier 2 can be turned around the pin, so that the fixing device 1 can be turned in relation to the carrier 2 when the superlift arm 10 is turned for lifting the web.
As shown in fig. 1 and 3, the bracket 2 comprises a first connecting portion 21 and a second connecting portion 22 which are connected to each other, the first connecting portion 21 is provided with the second hole structure 211, the first connecting portion 21 is adapted to extend into the mounting groove 11, the second connecting portion 22 is provided with the first limiting member 3, and when the superlift arm 10 is in the superlift state, the fixing device 1 and the second connecting portion 22 are contacted or arranged in a gap manner away from the side of the lift arm 9.
In this embodiment, the first connecting portion 21 and the second connecting portion 22 are connected end to end in the Y-axis direction, and the second hole structure 211 is provided on the first connecting portion 21, so that the first connecting portion 21 is configured to extend into the mounting groove 11 to cooperate with the fixing device 1, thereby realizing rotation of the bracket 2 and the fixing device 1. The second connecting portion 22 is used for installing the pulley assembly 8 (described later), and a first plate is disposed on the second connecting portion 22 and is used for being matched with a second plate on the boom 9. When the superlift arm 10 is in the superlift state, the fastening device 1 contacts or is arranged in a gap with the side of the second connection 22 facing away from the lift arm 9. So set up, the second connecting portion 22 top is spacing by fixing device 1, and the below of second connecting portion 22 is spacing by jib loading boom 9, so bracket 2 can not rotate or the rotation range is slight, plays the effect of fixed bracket 2, and when super-lift arm 10 is in super-lift state promptly, bracket 2 can not remove, has reduced the emergence of installation hidden danger.
As shown in fig. 2, the third limiting member 5 is disposed in the mounting groove 11, the third limiting member 5 is located on the rotation path of the first connecting portion 21, and the third limiting member 5 is adapted to abut against the first connecting portion 21.
In this embodiment, the third limiting member 5 may be a pin or a plate-shaped member, according to actual requirements, as shown in fig. 2, the third limiting member 5 is a pin, which is disposed in the mounting groove 11, specifically, the fixing device 1 is provided with a pin hole communicating with the mounting groove 11, and the pin passes through the pin hole, so that a portion of the pin is located in the mounting groove 11.
In this embodiment, the third limiting member 5 is located on the rotation path of the first connecting portion 21, because the bracket 2 needs to be balanced under the dead weight, when the third limiting member 5 is disposed above the bracket 2, the hinge point of the third limiting member 5 is located on the side of the bracket 2 away from the pulley assembly 8, and when the third limiting member 5 is disposed below the bracket 2, the hinge point of the third limiting member 5 is located on the side of the bracket 2 close to the pulley assembly 8, and in the two above two manners, the third limiting member 5 is abutted to the first connecting portion 21, so that the bracket 2 is balanced under the dead weight.
As shown in fig. 1, the second connecting portion 22 includes a first body 221, a second body 222 and a third body 223, the first body 221 is connected to the first connecting portion 21, the second body 222 and the second body 222 are disposed on the first body 221 at intervals, the first body 221 is provided with a first clamping groove 2222, the second body 222 is provided with a second clamping groove 2231, and the first clamping groove 2222 and the second clamping groove 2231 are adapted to support the pulley assembly 8, so that the pulley assembly 8 is located between the first body 221 and the second body 222.
In this embodiment, the first body 221, the second body 222 and the third body 223 are integrally formed, and the three form a U-shaped structure, one end surface of the first body 221 in the Y-axis direction is connected to the first connecting portion 21, and the other end surface of the first body 221 in the Y-axis direction is connected to the second body 222 and the third body 223. The second body 222 and the third body 223 have the same structure, and are plate-shaped members, the second body 222 and the third body 223 are disposed on the first body 221 at intervals, a first clamping groove 2222 is disposed on an upper end surface of the first body 221, a second clamping groove 2231 is disposed on the second body 222 at the same position, and the first clamping groove 2222 and the second clamping groove 2231 are suitable for supporting the pulley assembly 8, so that the pulley assembly 8 is located between the first body 221 and the second body 222.
It should be understood that, as shown in fig. 4, the pulley assembly 8 of the super lift device includes a movable pulley 81 and a wheel frame 82, the movable pulley 81 is disposed on the wheel frame 82 and adapted to rotate relative to the wheel frame 82, specifically, the movable pulley 81 is limited in a rotating groove of the wheel frame 82 by a connecting shaft 83, when the pulley assembly 8 is mounted on the bracket 2, both ends of the connecting shaft 83 are supported in a first clamping groove 2222 and a second clamping groove 2231, and the wheel frame 82 is disposed between the first body 221 and the second body 222.
As shown in fig. 4, the superlift pulley bracket device further includes a second fastener 7, the bracket 2 is provided with a third hole structure 2221, the second fastener 7 is adapted to be inserted into the third hole structure 2221, and the second fastener 7 is adapted to be connected with the pulley assembly 8.
In this embodiment, the second fastener 7 is a pin, the second body 222 and the third body 223 of the bracket 2 are both provided with a third hole structure 2221, and the third hole structures 2221 of the second body 222 and the third body 223 are coaxially arranged, the wheel frame 82 of the pulley assembly 8 is provided with a fourth hole structure, and when the wheel frame 82 is placed between the second body 222 and the third body 223, after the third hole structure 2221 and the fourth hole structure are aligned, the pin passes through the third hole structure 2221 and the fourth hole structure to connect the wheel frame 82 and the bracket 2. By the arrangement, the pulley assembly 8 can be limited on the bracket 2, and the pulley assembly 8 is prevented from falling off from the bracket 2, so that potential safety hazards are brought.
A boom according to another embodiment of the invention, as shown in fig. 6 and 7, comprises a superlift pulley carriage arrangement as described above.
As shown in fig. 6 and 7, the arm support further comprises a superlift arm 10 and a lift arm 9, wherein the superlift arm 10 and the lift arm 9 are rotatably connected, the fixing device 1 of the superlift pulley bracket device is arranged on the superlift arm 10, and the rotation axes of the bracket 2 of the superlift pulley bracket device and the fixing device 1 are coaxial with the rotation axes of the superlift arm 10 and the lift arm 9.
In this embodiment, as shown in fig. 6 and 7, two superlift pulley brackets are provided, and the two superlift pulley brackets are symmetrically arranged with respect to the superlift arm 10. Wherein, super-lift arm 10 and jib loading boom 9 are rotated through the round pin axle and are connected, and super-lift pulley bracket device's fixing device 1 sets up on super-lift arm 10, and it can adopt welding or bolted connection's mode. The rotational axis of the carriage 2 and the fixing means 1 of the superlift pulley carriage arrangement is coaxial with the rotational axis of the superlift arms 10 and the boom 9, whereby the carriage 2 and the fixing means 1 are rotated coaxially when the superlift arms 10 are rotated for reeling, whereby the normal operation of the superlift arms 10 is not disturbed.
A further embodiment of the invention provides a crane comprising a superlift pulley carriage arrangement as described above and/or a boom as described above.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.
Claims (10)
1. The super-lift pulley bracket device is characterized by comprising a fixing device (1), a bracket (2), a first limiting piece (3), a second limiting piece (4) and a third limiting piece (5), wherein the fixing device (1) is suitable for being arranged on a super-lift arm (10); the bracket (2) is rotationally connected with the fixing device (1), the first limiting piece (3) is arranged on the bracket (2), the second limiting piece (4) is suitable for being arranged on the crane boom (9), and the third limiting piece (5) is arranged on the fixing device (1);
when the super-lifting arm (10) is in a retracted state, the first limiting piece (3) and the second limiting piece (4) are in contact or are in clearance arrangement, and the bracket (2) is in contact with the third limiting piece (5) so as to keep the bracket (2) balanced under the dead weight;
when the super lift arm (10) lifts the web, the bracket (2) is separated from the third limiting piece (5), and the first limiting piece (3) and the second limiting piece (4) are suitable for contacting so that the bracket (2) is supported on the lift arm (9).
2. Superlift pulley bracket device according to claim 1, characterized in that the first stop (3) comprises a first plate, which is connected to the bracket (2); the second limiting piece (4) comprises a second plate, the second plate is suitable for being connected with the lifting arm (9), and the first plate is suitable for being supported on the second plate when the super lifting arm (10) lifts the web.
3. The superlift pulley bracket device according to claim 1, characterized in that it further comprises a first fastener (6), said fixing device (1) being provided with a mounting groove (11) and a first hole structure, said first hole structure being in communication with said mounting groove (11), said bracket (2) being provided with a second hole structure (211), a portion of said bracket (2) being adapted to extend into said mounting groove (11), said first fastener (6) being adapted to penetrate into said first hole structure and said second hole structure (211) for connecting said bracket (2) with said fixing device (1).
4. A superlift pulley bracket device according to claim 3, characterized in that the bracket (2) comprises a first connection part (21) and a second connection part (22) connected to each other, the first connection part (21) being provided with the second hole structure (211), the second connection part (22) being provided with the first stop member (3), the first connection part (21) being adapted to extend into the mounting groove (11), the fixing device (1) being in contact with or being arranged in a gap from the side of the second connection part (22) facing away from the lifting arm (9) when the superlift arm (10) is in the superlift state.
5. The superlift pulley bracket device according to claim 4, characterized in that the third limiting member (5) is arranged in the mounting groove (11), the third limiting member (5) being located on the rotational path of the first connecting portion (21), the third limiting member (5) being adapted to abut against the first connecting portion (21).
6. The superlift pulley bracket device according to claim 4, characterized in that the second connection portion (22) comprises a first body (221), a second body (222) and a third body (223), the first body (221) and the first connection portion (21) are connected, the second body (222) and the second body (222) are arranged on the first body (221) at intervals, the first body (221) is provided with a first clamping groove (2222), the second body (222) is provided with a second clamping groove (2231), and the first clamping groove (2222) and the second clamping groove (2231) are adapted to support a pulley assembly (8) so that the pulley assembly (8) is located between the first body (221) and the second body (222).
7. The superlift pulley bracket device according to claim 1, characterized in that it further comprises a second fastener (7), a third hole structure (2221) being provided on the bracket (2), the second fastener (7) being adapted to be threaded into the third hole structure (2221), the second fastener (7) being adapted to be connected to a pulley assembly (8).
8. Arm support, characterized in that it comprises a superlift pulley carriage arrangement according to any of claims 1-7.
9. Boom according to claim 8, characterized in that it further comprises a superlift arm (10) and a boom (9), said superlift arm (10) and said boom (9) being in rotational connection, the securing means (1) of said superlift pulley bracket means being arranged on said superlift arm (10), the rotational axes of the bracket (2) of said superlift pulley bracket means and said securing means (1) being coaxial with the rotational axes of said superlift arm (10) and boom (9).
10. Crane, characterized by comprising a superlift pulley carriage arrangement according to any of claims 1-7 and/or a boom according to claim 8 or 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872212.9A CN113401818B (en) | 2021-07-30 | 2021-07-30 | Super-lifting pulley bracket device, arm support and crane |
| PCT/CN2022/101812 WO2023005564A1 (en) | 2021-07-30 | 2022-06-28 | Super-lift pulley bracket device, arm support and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872212.9A CN113401818B (en) | 2021-07-30 | 2021-07-30 | Super-lifting pulley bracket device, arm support and crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113401818A CN113401818A (en) | 2021-09-17 |
| CN113401818B true CN113401818B (en) | 2023-08-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110872212.9A Active CN113401818B (en) | 2021-07-30 | 2021-07-30 | Super-lifting pulley bracket device, arm support and crane |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113401818B (en) |
| WO (1) | WO2023005564A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401818B (en) * | 2021-07-30 | 2023-08-01 | 湖南三一中型起重机械有限公司 | Super-lifting pulley bracket device, arm support and crane |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202379629U (en) * | 2011-12-27 | 2012-08-15 | 徐州重型机械有限公司 | Super lifting device and crane |
| JP6079269B2 (en) * | 2013-01-29 | 2017-02-15 | コベルコ建機株式会社 | Hoisting member |
| CN103407908A (en) * | 2013-08-29 | 2013-11-27 | 徐州重型机械有限公司 | Crane and front tensioning system of super lifting device thereof |
| CN103863956B (en) * | 2014-03-31 | 2016-05-25 | 徐州重型机械有限公司 | A kind of have from the crane of dismounting super lifting device and the mounting and dismounting method of super lifting device |
| CN203998733U (en) * | 2014-06-25 | 2014-12-10 | 徐州重型机械有限公司 | A kind of boom device and super starter pulley bracket thereof |
| CN105460807B (en) * | 2015-11-24 | 2018-10-09 | 徐州重型机械有限公司 | The full Terrain Cranes |
| JP6801692B2 (en) * | 2018-05-23 | 2020-12-16 | コベルコ建機株式会社 | Swing connection structure and crane |
| CN113401818B (en) * | 2021-07-30 | 2023-08-01 | 湖南三一中型起重机械有限公司 | Super-lifting pulley bracket device, arm support and crane |
-
2021
- 2021-07-30 CN CN202110872212.9A patent/CN113401818B/en active Active
-
2022
- 2022-06-28 WO PCT/CN2022/101812 patent/WO2023005564A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023005564A1 (en) | 2023-02-02 |
| CN113401818A (en) | 2021-09-17 |
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