CN221070785U - Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane - Google Patents
Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane Download PDFInfo
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- CN221070785U CN221070785U CN202322975485.3U CN202322975485U CN221070785U CN 221070785 U CN221070785 U CN 221070785U CN 202322975485 U CN202322975485 U CN 202322975485U CN 221070785 U CN221070785 U CN 221070785U
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- oil cylinder
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- lorry
- amplitude
- mounted crane
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- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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Abstract
A luffing lifting type counterweight mechanism of a lorry-mounted crane relates to the lorry-mounted crane. Comprising the following steps: the turntable is rotatably arranged on the vehicle body; the telescopic fixing frame can be arranged at the top of the turntable in a swinging way through an amplitude-variable oil cylinder; the tail part of the telescopic bracket stretches into the telescopic fixing frame and is telescopically adjusted on the telescopic fixing frame through a telescopic oil cylinder; the vertical oil cylinder is fixedly arranged at the head part of the telescopic bracket, and the end part of the piston rod of the vertical oil cylinder is provided with a supporting leg which is detachably and fixedly connected with the vertical oil cylinder; the lifting seat is fixedly arranged at the top of the balancing weight, and the side part is provided with an inserting port matched with the supporting leg. According to the utility model, through the cooperation of the vertical oil cylinder and the lifting lug, the vertical oil cylinder is prevented from radial force in the rotation process of the crane, and the service lives of the sealing element and the oil cylinder are prolonged.
Description
Technical Field
The utility model relates to a lorry-mounted crane, in particular to a lorry-mounted crane luffing lifting type counterweight mechanism.
Background
During operation of the folding arm type large-tonnage crane, stability is a factor which must be considered by design, and in order to improve the stability of the crane, a counterweight is usually added. In the prior art, most of the counterweights are fixed counterweights, variable amplitude counterweights and telescopic counterweights; these counterweights all have their limitations.
In the prior patent literature, for example:
One title of the issued 5 month 2013 patent is called "counterweight mechanism and crane", the utility model patent number "201220628055.3". Disclosed is: the second component of the first telescopic mechanism can drive the moving part and the first component of the second telescopic mechanism to reciprocate along the horizontal direction, and the second component of the second telescopic mechanism can drive the hanging part to reciprocate along the vertical direction, so that the first telescopic mechanism and the second telescopic mechanism can be operated to drive the hanging part to a position which is enough for hanging the counterweight so as to realize the hanging of the counterweight, and the first telescopic mechanism and the second telescopic mechanism can be operated after the counterweight is hung so as to realize the regulation of the amplitude of the counterweight, so that the counterweight can be driven to move in the horizontal direction and the vertical direction, and the technical problem of poor counterweight mobility in the prior art is solved. The telescopic counterweight mechanism is arranged on the whole car, and part of the counterweight mechanism is ultra-long, so that the counterweight mechanism is not beneficial to turning and operation in narrow space. And the counterweight is directly lifted by the vertical oil cylinder, the oil cylinder is subjected to radial force during rotation, deformation and abrasion of a sealing element and the oil cylinder can be caused after long-term use, and the failure of the oil cylinder can be accelerated.
One title of the issued patent at 05 in 2018 is called a "truck crane counterweight device", and the patent number is 201721315856.3. The lifting device comprises a slewing bearing, wherein a machine base is arranged on the slewing bearing, and a lifting arm is arranged on the machine base; the top of the machine base is provided with a weight beam, one end of the weight beam is hinged with the machine base, the other end of the weight beam is provided with a hook, and a counterweight is hung on the hook; and a hydraulic cylinder is arranged between the counterweight beam and the bottom of the machine base. This case adds wire rope fixed balancing weight through the lifting hook, and the balancing weight is unstable in the gyration in-process, easily rocks. In a work area with narrow space and complex work space, potential safety hazards exist.
Disclosure of utility model
Aiming at the problems, the utility model provides the amplitude-variable lifting type counterweight mechanism of the lorry-mounted crane, which has an exquisite structure and improves the operation capacity in a narrow space.
The technical scheme of the utility model is as follows:
Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane, comprising:
The turntable is rotatably arranged on the vehicle body;
The telescopic fixing frame can be arranged at the top of the turntable in a swinging way through an amplitude-variable oil cylinder;
the tail part of the telescopic bracket stretches into the telescopic fixing frame and is telescopically adjusted on the telescopic fixing frame through a telescopic oil cylinder;
The vertical oil cylinder is fixedly arranged at the head part of the telescopic bracket, and the end part of the piston rod of the vertical oil cylinder is provided with a supporting leg which is detachably and fixedly connected with the vertical oil cylinder;
The lifting seat is fixedly arranged at the top of the balancing weight, and the side part is provided with an inserting port matched with the supporting leg.
Specifically, the lifting lug is fixedly arranged at the top of the balancing weight; the lifting lug is provided with a first through hole;
A connecting plate fixedly connected with the telescopic bracket is arranged below the head part of the telescopic bracket; the connecting plate is provided with a second through hole;
And the first through hole corresponds to the second through hole and is connected through a pin shaft.
Specifically, the connecting plate is provided with an adjusting cushion block which is horizontally and fixedly arranged.
Specifically, the cross section of stabilizer blade is T type structure.
Specifically, the cross section of the inserting port of the lifting seat is of a T-shaped structure.
Specifically, the vertical oil cylinders are provided with a pair of vertical oil cylinders which are fixedly arranged at the head part of the telescopic bracket in parallel.
The utility model comprises a turntable, a telescopic fixed frame, a telescopic bracket, a vertical oil cylinder and a lifting seat; the balancing weight can be detached and fixedly arranged on the telescopic bracket, so that the problem that the balancing weight is unstable and easy to shake in the rotation process is solved. Through the cooperation of vertical hydro-cylinder and lug, during the hoist gyration, vertical hydro-cylinder avoids radial force, improves sealing member, hydro-cylinder's life.
Drawings
Figure 1 is a schematic perspective view of the present utility model,
Figure 2 is a schematic top view of the structure of figure 1,
Figure 3 is a perspective structure schematic diagram of the use state of the lifting lug,
FIG. 4 is a schematic perspective view of a vertical cylinder and lift base connection;
In the figure, a turntable 1, an amplitude variable oil cylinder 2, a telescopic fixed frame 3, a telescopic bracket 4, a vertical oil cylinder 5, a balancing weight 6, a telescopic oil cylinder 7, a lifting seat 8, a lifting lug 9, a pin roll 10, an adjusting cushion block 11 and a supporting foot 12 are arranged.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model is shown in fig. 1-4;
Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane, comprising:
A turntable 1 rotatably provided on a vehicle body;
The telescopic fixing frame 3 is arranged at the top of the turntable 1 in a swinging way through the amplitude-variable oil cylinder 2;
the tail part of the telescopic bracket 4 stretches into the telescopic fixing frame 3 and is telescopically adjusted on the telescopic fixing frame 3 through a telescopic oil cylinder 7;
The vertical oil cylinder 5 is fixedly arranged at the head part of the telescopic bracket 4, and the end part of a piston rod of the vertical oil cylinder is provided with a support leg 12 which is detachably and fixedly connected with the vertical oil cylinder;
the lifting seat 8 is fixedly arranged at the top of the balancing weight 6, and the side part is provided with an inserting port matched with the supporting leg 12.
After the amplitude variation oil cylinder 2 is completely contracted, the amplitude variation oil cylinder is in a contracted state shown in figure 1. The telescopic bracket 4 does not increase the whole vehicle length additionally. The telescopic bracket 4 moves back and forth on the telescopic fixing frame 3 through the telescopic oil cylinder 7, and the vertical oil cylinder 5 extends outwards to lift and put down the balancing weight 6 from the platform.
Further defined, further comprising a lifting lug 9 fixedly arranged on top of the balancing weight 6; the lifting lug 9 is provided with a first through hole;
A connecting plate fixedly connected with the telescopic bracket 4 is arranged below the head part of the telescopic bracket; the connecting plate is provided with a second through hole;
The first through hole corresponds to the second through hole and is connected through a pin shaft 10.
Further preferably, the connecting plate is provided with an adjusting cushion block 11 which is horizontally and fixedly arranged, the lifting lug 9 is limited to move upwards through the adjusting cushion block 11, and when the lifting lug 9 is in contact with the adjusting cushion block 11, the first through hole corresponds to the second through hole, further adjustment is not needed, and the pin shaft is directly inserted.
Further defined, the legs 12 are T-shaped in cross-section.
The section of the insertion port of the lifting seat 8 is of a T-shaped structure.
Further, the vertical cylinders 5 are provided with a pair, and are fixedly arranged at the head of the telescopic bracket 4 in parallel.
The application method mainly comprises the following steps:
1. And (3) aligning:
The turntable 1 rotates to a position for placing the balancing weight 6, the telescopic oil cylinder 7 is started, the telescopic bracket 4 extends out towards the balancing weight 6, and the height of the telescopic bracket 4 when extending out is controlled by the amplitude-variable oil cylinder 2; after the telescopic bracket 4 is extended to the set position, the support leg 12 is lowered to the side of the insertion opening by the vertical oil cylinder 5, and the support leg 12 is pushed into the insertion opening by the extension of the telescopic oil cylinder 7.
2. The balancing weight 6 is locked and connected:
The piston rod of the vertical oil cylinder 5 is retracted, so that the balancing weight 6 is driven to move upwards until the top surface of the lifting lug 9 is attached to the adjusting cushion block 11. The pin shaft 10 is inserted into the corresponding first through hole and the corresponding second through hole, so that the telescopic bracket 4 is connected with the balancing weight 6.
Further preferably, after the support legs 12 extend into the insertion openings, a space is arranged between the bottom surfaces of the support legs 12 and the balancing weights 6, after the pin shafts 10 are connected, the piston rods of the vertical oil cylinders 5 slightly extend downwards and are separated from the lifting seats, the force generated by swinging is not born, and the service life of the vertical oil cylinders 5 is prolonged.
For the purposes of this disclosure, the following points are also described:
(1) The drawings of the embodiments disclosed in the present application relate only to the structures related to the embodiments disclosed in the present application, and other structures can refer to common designs;
(2) The embodiments disclosed herein and features of the embodiments may be combined with each other to arrive at new embodiments without conflict;
The above is only a specific embodiment disclosed in the present application, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane, which is characterized by comprising:
a turntable (1) rotatably provided on the vehicle body;
the telescopic fixing frame (3) can be arranged at the top of the turntable (1) in a swinging way through the amplitude-variable oil cylinder (2);
The tail part of the telescopic bracket (4) stretches into the telescopic fixing frame (3), and is telescopically adjusted on the telescopic fixing frame (3) through a telescopic oil cylinder (7);
The vertical oil cylinder (5) is fixedly arranged at the head part of the telescopic bracket (4), and the end part of a piston rod of the vertical oil cylinder is provided with a support leg (12) which is detachably and fixedly connected with the vertical oil cylinder;
The lifting seat (8) is fixedly arranged at the top of the balancing weight (6), and an inserting port matched with the supporting leg (12) is arranged at the side part.
2. The amplitude-variable lifting type counterweight mechanism of the lorry-mounted crane according to claim 1, characterized by further comprising a lifting lug (9) fixedly arranged at the top of the counterweight (6); the lifting lug (9) is provided with a first through hole;
A connecting plate fixedly connected with the telescopic bracket (4) is arranged below the head part of the telescopic bracket; the connecting plate is provided with a second through hole;
The first through hole corresponds to the second through hole and is connected through a pin shaft (10).
3. The amplitude-variable lifting type counterweight mechanism of the lorry-mounted crane according to claim 2, characterized in that the connecting plate is provided with an adjusting cushion block (11) which is horizontally and fixedly arranged.
4. The luffing lifting counterweight mechanism of a lorry-mounted crane according to claim 1, wherein the cross section of the support leg (12) is of T-shaped configuration.
5. The amplitude-variable lifting counterweight mechanism of the lorry-mounted crane according to claim 1, characterized in that the section of the insertion opening of the lifting seat (8) is of a T-shaped structure.
6. The amplitude-variable lifting type counterweight mechanism of the lorry-mounted crane according to claim 1, wherein the vertical oil cylinders (5) are provided with a pair and are fixedly arranged at the head part of the telescopic bracket (4) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322975485.3U CN221070785U (en) | 2023-11-03 | 2023-11-03 | Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322975485.3U CN221070785U (en) | 2023-11-03 | 2023-11-03 | Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221070785U true CN221070785U (en) | 2024-06-04 |
Family
ID=91264089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322975485.3U Active CN221070785U (en) | 2023-11-03 | 2023-11-03 | Amplitude-variable lifting type counterweight mechanism of lorry-mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221070785U (en) |
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2023
- 2023-11-03 CN CN202322975485.3U patent/CN221070785U/en active Active
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