CN220335978U - Adjustable arm length excavator - Google Patents
Adjustable arm length excavator Download PDFInfo
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- CN220335978U CN220335978U CN202321875571.0U CN202321875571U CN220335978U CN 220335978 U CN220335978 U CN 220335978U CN 202321875571 U CN202321875571 U CN 202321875571U CN 220335978 U CN220335978 U CN 220335978U
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- 230000008093 supporting effect Effects 0.000 claims abstract description 22
- 210000000245 forearm Anatomy 0.000 claims description 4
- 230000009194 climbing Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 17
- 238000010276 construction Methods 0.000 description 10
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of excavator equipment, and discloses an excavator with an adjustable arm length. The big arm comprises a big arm fixing rod, a big arm telescopic rod, a big arm front end connecting rod, a big arm telescopic cylinder and a big arm angle adjusting cylinder, the big arm telescopic cylinder and the big arm telescopic rod are used for adjusting the length of the big arm, and the big arm angle adjusting cylinder is used for adjusting the inclination angle of the big arm. The two support frames are respectively arranged at the front part and the rear part of the machine body. The universal wheels are more than four, each supporting frame is provided with two transverse telescopic rods which extend to the left and the right, the tail ends of the transverse telescopic rods are provided with vertical telescopic rods, and the bottoms of the vertical telescopic rods are provided with the universal wheels; the universal wheels can be arranged at the bottom and the side surfaces of the vertical telescopic rod. The utility model improves the structure of the large arm, enables the large arm to be capable of greatly telescoping, improves the supporting effect, avoids the accidents of overturning and sliding, and can flexibly move and run on a climbing slope.
Description
Technical Field
The utility model belongs to the field of excavator equipment, and particularly relates to an excavator with adjustable large arm length.
Background
When the photovoltaic construction is carried out on the river, the lake and the sea, the pile sinking operation of the precast concrete pipe pile with the depth of more than 30 meters is required to reach the design elevation. During construction, long piles are required to be hung to be vertical through an excavator, and then hammered and sunk through a hammering type diesel pile driver. This places demands on the arm length of the excavator.
The existing long-arm excavator adopts a multi-section (most three-section) large arm or small arm, such as the long-arm excavator and the excavating method thereof disclosed in the Chinese patent No. 114215127B, and the excavating can be carried out in a long distance, but the length of the multi-section excavator still cannot meet the requirements.
The existing lengthened arm excavator has the problems that the gravity center of the excavator is unstable and easy to topple or slip after the arm length is lengthened, and the other type of large arm and small arm are longer, and the chassis and the counterweight are larger. But the excavator with larger dead weight is selected to increase the construction cost, the excavator has insufficient flexibility and is inconvenient to transport, and the working condition construction with softer soil or smaller field is adopted.
Meanwhile, the existing lengthening arm excavator needs to move during operation, and the running stability of the large chassis and the counterweight excavator is insufficient in running process such as climbing.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to solve the problems that the chassis and the counterweight of the existing lengthening arm excavator are large, the control is inflexible, the construction economy is poor and the stability is insufficient during running.
In order to achieve the above object, the present utility model provides an adjustable arm length excavator, comprising:
the big arm comprises a big arm fixing rod, a big arm telescopic rod, a big arm front end connecting rod, a big arm telescopic cylinder and a big arm angle adjusting cylinder, the big arm telescopic cylinder and the big arm telescopic rod adjust the length of the big arm, the big arm angle adjusting cylinder adjusts the inclination angle of the big arm,
two supporting frames are respectively arranged at the front part and the rear part of the machine body,
the universal wheels are more than four, each supporting frame is provided with two transverse telescopic rods which extend to the left and the right, the tail ends of the transverse telescopic rods are provided with vertical telescopic rods, and the bottoms of the vertical telescopic rods are provided with the universal wheels; the universal wheels can be arranged at the bottom and the side surfaces of the vertical telescopic rod.
According to a further embodiment of the present utility model or the excavator according to any one of the preceding embodiments, the excavator further comprises a base, the base is mounted on the excavator body, and the boom fixing bar is hinged to the base of the body; the base is hinged with a big arm angle adjusting oil cylinder, a piston rod of the big arm angle adjusting oil cylinder is hinged to the lower part of a big arm fixing rod, and an included angle between the big arm and the horizontal plane is adjusted when the big arm angle adjusting oil cylinder stretches; the large arm telescopic rod is inserted into the large arm fixing rod, and a large arm telescopic cylinder is arranged between the large arm telescopic rod and the large arm fixing rod; one end of the connecting rod at the front end of the big arm is connected with the front end of the big arm telescopic link, the other end is provided with a small arm,
according to a further embodiment of the present utility model or the excavator according to any one of the preceding embodiments, wherein a height adjusting plate is installed at the bottom of the support frame; the height adjusting plates are multiple, the bottom is connected with the inner side of the machine body, the upper portion of the height adjusting plates are connected with the supporting frame, the height adjusting plates are vertically provided with a plurality of adjusting holes, and the supporting frame can be connected with different adjusting holes to adjust the inclination angle of the supporting frame.
According to another embodiment of the present utility model or any of the foregoing embodiments, the boom fixing rod, the boom extension rod, the boom front end connecting rod, the support frame, the lateral extension rod, and the vertical extension rod are square pipe structures.
According to still another embodiment of the present utility model or any one of the foregoing embodiments, an excavator is provided with a transverse telescopic cylinder in the transverse telescopic rod, and a piston rod of the transverse telescopic cylinder is fixedly connected with the vertical telescopic rod; the vertical telescopic rod is internally provided with a vertical telescopic oil cylinder, and a piston rod of the vertical telescopic oil cylinder is connected with a universal wheel.
According to a further embodiment of the present utility model or the excavator according to any one of the preceding embodiments, there are two boom angle adjustment cylinders.
According to a further embodiment of the present utility model or the excavator according to any one of the preceding embodiments, the counterweight of the machine body is connected to a moving assembly which moves back synchronously when the boom extension rod is extended and moves forward synchronously when the boom extension rod is retracted.
According to yet another embodiment of the present utility model or an excavator according to any of the preceding embodiments, wherein the forearm is connected to one of: pile driver, bucket, screen bucket, bucket hook, rotary hydraulic grab, breaking hammer, hydraulic ram and bucket tooth.
According to the excavator in another embodiment or any of the foregoing embodiments of the present utility model, the top of the universal wheel is mounted on the rotating base plate, the bottom of the piston rod of the vertical telescopic cylinder is connected with a bottom plate, connecting blocks are disposed on the bottom plate and the vertical telescopic rod, the connecting blocks are provided with pin holes, two ends of the bottom plate are matched with the rotating base plate through pins, and the rotating base plate and the universal wheel can be horizontally or vertically disposed through disassembly and assembly of the rotating base plate.
The utility model has the beneficial effects that:
the excavator with the adjustable arm length improves the structure of the large arm, enables the large arm to be telescopic greatly, is convenient for long-distance or higher-height construction, and expands the construction range of the excavator. Simultaneously, through the adjustment of the support frame and the universal wheels, the support effect is improved, the overturning and sliding accidents are avoided, the support frame and the universal wheels move flexibly, and climbing running can be performed.
Drawings
FIG. 1 is a schematic perspective view of an adjustable arm length excavator according to the present utility model;
FIG. 2 is a perspective view of a large arm portion and its interior of the adjustable arm length excavator of the present utility model;
FIG. 3 is a perspective view of the universal wheel of the adjustable arm length excavator of the present utility model after the large and small arms are removed;
FIG. 4 is a perspective view of the adjustable arm length excavator of the present utility model when climbing a slope by rotating the universal wheel 90 degrees after removing the big arm and the small arm;
FIG. 5 is an enlarged perspective view of the support frame, the transverse telescopic rod, the vertical telescopic rod and the universal wheels of the utility model;
FIG. 6 is an enlarged schematic view of portion A of FIG. 5;
in the figure: 1. a body; 2. a large arm fixing rod; 3. a large arm telescopic rod; 4. a connecting rod at the front end of the big arm; 5. a large arm telescopic cylinder; 6. a support frame; 7. a transverse telescopic rod; 8. a vertical telescopic rod; 9. a universal wheel; 10. a height adjusting plate; 11. a bottom plate; 12. a transverse telescopic oil cylinder; 13. a vertical telescopic oil cylinder; 14. rotating the substrate; 15. a connecting block; 16. and the angle of the large arm is adjusted to be an oil cylinder.
Detailed Description
The details of the present utility model are described in detail below with reference to the drawings and the detailed description.
Embodiment one:
as shown in fig. 1, the excavator with the adjustable arm length comprises a big arm, a supporting frame 6 and universal wheels 9.
As shown in fig. 2, the boom comprises a boom fixing rod 2, a boom telescopic rod 3, a boom front end connecting rod 4, a boom telescopic cylinder 5 and a boom angle adjusting cylinder 16, the boom telescopic cylinder 5 and the boom telescopic rod 3 adjust the length of the boom, and the boom angle adjusting cylinder 16 adjusts the inclination angle of the boom. The excavator further comprises a base, the base is arranged on the excavator body 1, and the big arm fixing rod 2 is hinged to the base of the excavator body 1; the base is hinged with a large arm angle adjusting oil cylinder 16, a piston rod of the large arm angle adjusting oil cylinder 16 is hinged to the lower portion of the large arm fixing rod 2, two large arm angle adjusting oil cylinders 16 are arranged, and an included angle between a large arm and a horizontal plane is adjusted when the large arm angle adjusting oil cylinder 16 stretches; the big arm telescopic rod 3 is inserted into the big arm fixing rod 2, and a big arm telescopic cylinder 5 is arranged between the big arm telescopic rod 3 and the big arm fixing rod 2; one end of a big arm front end connecting rod 4 is connected with the front end of the big arm telescopic link 3, and the other end is provided with a forearm. The forearm is connected to one of the following: pile driver, bucket, screen bucket, bucket hook, rotary hydraulic grab, breaking hammer, hydraulic ram and bucket tooth.
As shown in fig. 3, 4 and 5, two supporting frames 6 are respectively arranged at the front part and the rear part of the machine body 1, and the bottom of the supporting frame 6 is provided with a height adjusting plate 10; the height-adjusting plate 10 has a plurality ofly, and the bottom is connected with organism 1 inboard, and upper portion is connected with support frame 6, and the vertical a plurality of regulation holes that are provided with of height-adjusting plate 10, support frame 6 can adjust support frame 6 inclination with different regulation hole connection. A transverse telescopic oil cylinder 12 is arranged in the transverse telescopic rod 7, and a piston rod of the transverse telescopic oil cylinder 12 is fixedly connected with the vertical telescopic rod 8; a vertical telescopic oil cylinder 13 is arranged in the vertical telescopic rod 8, and a piston rod of the vertical telescopic oil cylinder 13 is connected with a universal wheel 9.
As shown in fig. 5 and 6, the universal wheels 9 are more than four, each support frame 6 is provided with two transverse telescopic rods 7 which extend to the left and right sides, the tail ends of the transverse telescopic rods 7 are provided with vertical telescopic rods 8, and the bottoms of the vertical telescopic rods 8 are provided with the universal wheels 9; the universal wheels 9 can be mounted at the bottom and sides of the vertical telescopic rod 8. The universal wheel 9 top is installed on rotatory base plate 14, and the piston rod bottom of vertical flexible hydro-cylinder 13 is connected with bottom plate 11, is provided with connecting block 15 on bottom plate 11 and the vertical telescopic link 8, and connecting block 15 sets up the pinhole, and the bottom plate 11 both ends pass through the round pin cooperation with rotatory base plate 14, and rotatory base plate 14, universal wheel 9 can be horizontal or vertical setting through the dismouting of rotatory base plate 14.
The big arm fixing rod 2, the big arm telescopic rod 3, the big arm front end connecting rod 4, the supporting frame 6, the transverse telescopic rod 7 and the vertical telescopic rod 8 are square pipe structures.
Embodiment two:
other parts are the same as the first embodiment, except that the counterweight of the machine body 1 is connected with a moving assembly, and the distance between the counterweight and the center of the machine body can be manually or automatically adjusted during the adjustment of the large arm. For example, when the large arm telescopic rod 3 is extended, the counterweight moves backwards; the large arm angle adjusting oil cylinder 16 enables the counterweight to move forward when the large arm fixing rod 2, the large arm telescopic rod 3 and the large arm front end connecting rod 4 are lifted; when the large arm telescopic rod 3 is retracted, the counterweight moves forward. Finally, a sensor is arranged to detect the moment of the large arm, and the distance between the counterweight and a fulcrum (the center of the chassis of the excavator) is automatically adjusted according to the power multiplied by the power arm=resistance multiplied by the resistance arm, so that the damage to the chassis is reduced. The moving component can be a hydraulic oil cylinder, and the bottom of the counterweight can be provided with a sliding block which moves on a guide rail of the machine body.
The working principle of the utility model is as follows:
the adjustable arm length excavator disclosed by the utility model has the advantages that the big arm is divided into the big arm fixing rod 2, the big arm telescopic rod 3 and the big arm front end connecting rod 4, the length of the big arm can be freely adjusted, the pipe pile with the length of more than 30 meters can be hung for construction, and various works can be realized by being matched with a bucket, a screen bucket, a bucket hook, a rotary hydraulic grab bucket, a breaking hammer, a hydraulic rammer, bucket teeth and the like. For example, after the hydraulic ram is installed, pile sinking operation can be performed on the mud flat or the offshore pipe pile of more than 30 meters.
In order to ensure that the large arm does not topple or slide when extending, the utility model adopts the supporting frame 6 to be matched with the universal wheels 9 which can extend and lift, the universal wheels 9 extend to two sides and then descend to be attached to the ground, the area of a supporting substrate of the excavator is increased, the universal wheels 9 bear moment, and the load of the crawler belt is reduced. As shown in fig. 1, after the boom extension rod 3 is extended, the boom angle adjusting cylinder 16 flexibly adjusts the angle, and the boom center of gravity moves forward, so that the excavator is easy to topple if the chassis of the excavator is not adjusted. And after the transverse telescopic rod 7 stretches out, upward vertical supporting force is generated, and the supportability of the bottom of the excavator body 1 is improved.
Meanwhile, in order to further improve the lever moment, the adjustable arm length excavator can synchronously move the counterweight, namely the counterweight is not fixed on the machine body 1 any more, but can synchronously move backwards along with the extension of the large arm extension rod, and according to the lever principle: the power is multiplied by the power arm=resistance is multiplied by the resistance arm, and the counterweight moves backwards or forwards, which is equivalent to adjusting the length of the resistance arm, so that the overall stability is improved.
The large arm lengthening mode of the excavator is similar to the arm length adjusting mode of a crane, but has a plurality of differences: the crane is usually fixed on the ground, and the excavator of the utility model needs to flexibly move during construction, so the universal wheels 9 are arranged to adjust the rotation direction in coordination with the movement of the crawler belt of the excavator. Meanwhile, due to the limitation of the working environment, the construction excavator has high adaptability to site road conditions.
When climbing a slope, the crawler belt is not contacted with the slope, at the moment, the universal wheel 9 at the front part is positioned on the slope, and at the moment, if the connection structure of the support frame 6 and the universal wheel 9 is unchanged, the crawler belt steering wheel of the excavator can be suspended, so that the excavator cannot run. The support frame 6 can move upwards, and the rotary base plate 14 of the universal wheel 9 can be detached and then horizontally arranged and vertically arranged. As shown in fig. 4, the supporting frame 6 and the universal wheels 9 incline upwards, so that climbing is facilitated.
The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and the present utility model can be implemented by those skilled in the art without limiting the scope of the utility model, therefore, all equivalent changes or modifications that are made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (9)
1. An adjustable arm length excavator, which is characterized in that: comprising the following steps:
the big arm comprises a big arm fixing rod (2), a big arm telescopic rod (3), a big arm front end connecting rod (4), a big arm telescopic cylinder (5) and a big arm angle adjusting cylinder (16), the big arm telescopic cylinder (5) and the big arm telescopic rod (3) adjust the length of the big arm, the big arm angle adjusting cylinder (16) adjusts the inclination angle of the big arm,
two supporting frames (6) are respectively arranged at the front part and the rear part of the machine body (1),
the universal wheels (9) are provided with more than four, each supporting frame (6) is provided with two transverse telescopic rods (7) which extend to the left side and the right side, the tail ends of the transverse telescopic rods (7) are provided with vertical telescopic rods (8), and the bottoms of the vertical telescopic rods (8) are provided with the universal wheels (9); the universal wheels (9) can be arranged at the bottom and the side surfaces of the vertical telescopic rod (8).
2. An adjustable arm length excavator according to claim 1 wherein: the excavator further comprises a base, the base is arranged on the excavator body (1), and the big arm fixing rod (2) is hinged to the base of the excavator body (1); the base is hinged with a big arm angle adjusting oil cylinder (16), a piston rod of the big arm angle adjusting oil cylinder (16) is hinged to the lower part of the big arm fixing rod (2), and an included angle between the big arm and the horizontal plane is adjusted when the big arm angle adjusting oil cylinder (16) stretches; the large arm telescopic rod (3) is inserted into the large arm fixing rod (2), and a large arm telescopic cylinder (5) is arranged between the large arm telescopic rod (3) and the large arm fixing rod (2); one end of the big arm front end connecting rod (4) is connected with the front end of the big arm telescopic rod (3), and the other end is provided with a small arm.
3. An adjustable arm length excavator according to claim 1 wherein: the number of the large arm angle adjusting cylinders (16) is two.
4. An adjustable arm length excavator according to claim 1 or claim 2 wherein: a height adjusting plate (10) is arranged at the bottom of the supporting frame (6); the height adjusting plates (10) are multiple, the bottom is connected with the inner side of the machine body (1), the upper portion of the height adjusting plates is connected with the supporting frame (6), the height adjusting plates (10) are vertically provided with a plurality of adjusting holes, and the supporting frame (6) can be connected with different adjusting holes to adjust the inclination angle of the supporting frame (6).
5. An adjustable arm length excavator according to claim 1 or claim 2 wherein: the big arm fixing rod (2), the big arm telescopic rod (3), the big arm front end connecting rod (4), the supporting frame (6), the transverse telescopic rod (7) and the vertical telescopic rod (8) are square pipe structures.
6. An adjustable arm length excavator in accordance with claim 5 wherein: a transverse telescopic oil cylinder (12) is arranged in the transverse telescopic rod (7), and a piston rod of the transverse telescopic oil cylinder (12) is fixedly connected with the vertical telescopic rod (8); a vertical telescopic oil cylinder (13) is arranged in the vertical telescopic rod (8), and a piston rod of the vertical telescopic oil cylinder (13) is connected with a universal wheel (9).
7. An adjustable arm length excavator according to claim 1 wherein: the balance weight of the machine body (1) is connected with a moving assembly, and synchronously moves backwards when the large-arm telescopic rod (3) stretches out and synchronously moves forwards when the large-arm telescopic rod (3) retracts.
8. An adjustable arm length excavator according to claim 1 wherein: the forearm is connected to one of the following: pile driver, bucket, screen bucket, bucket hook, rotary hydraulic grab, breaking hammer, hydraulic ram and bucket tooth.
9. An adjustable arm length excavator according to claim 1 or 6 wherein: the universal wheel (9) top is installed on rotatory base plate (14), and piston rod bottom of vertical flexible hydro-cylinder (13) is connected with bottom plate (11), is provided with connecting block (15) on bottom plate (11) and vertical telescopic link (8), connecting block (15) set up the pinhole, and bottom plate (11) both ends pass through the round pin cooperation with rotatory base plate (14), but rotatory base plate (14), universal wheel (9) pass through the dismouting level or the vertical setting of rotatory base plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875571.0U CN220335978U (en) | 2023-07-17 | 2023-07-17 | Adjustable arm length excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875571.0U CN220335978U (en) | 2023-07-17 | 2023-07-17 | Adjustable arm length excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220335978U true CN220335978U (en) | 2024-01-12 |
Family
ID=89448892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321875571.0U Active CN220335978U (en) | 2023-07-17 | 2023-07-17 | Adjustable arm length excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220335978U (en) |
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2023
- 2023-07-17 CN CN202321875571.0U patent/CN220335978U/en active Active
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