CN219279339U

CN219279339U - Crane movable supporting leg adjusting device

Info

Publication number: CN219279339U
Application number: CN202320823053.8U
Authority: CN
Inventors: 严峰; 马宏伟; 张军
Original assignee: Nantong Daoqi Lifting Machinery Co ltd
Current assignee: Nantong Daoqi Lifting Machinery Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-06-30
Anticipated expiration: 2033-04-14

Abstract

The utility model discloses a crane movable supporting leg adjusting device, and relates to the technical field of cranes; the utility model comprises a crane supporting leg seat, wherein a chute is arranged in the crane supporting leg seat, a sliding supporting leg is clamped in the chute in a sliding way, and a driving unit is arranged at one side, close to the sliding supporting leg, of the interior of the chute; through setting up side supporting mechanism, the extension that utilizes first flexible hydro-cylinder output shaft drives the rotor plate and rotates to one side of keeping away from the slip landing leg, will rotate the board and roll out to suitable position from the inside of accomodating the groove, then the downward extension and the ground contact of second flexible hydro-cylinder output shaft support the hoist, avoid supporting through single landing leg, the bearing performance is not good, can lead to the bearing capacity not enough, the easy emergence is slipped, and cause the hoist to rock, can lead to the problem of hoist tipping when serious, very big improvement the security when hoist operation, brought the safety guarantee for the transport work.

Description

Crane movable supporting leg adjusting device

Technical Field

The utility model relates to the technical field of cranes, in particular to a crane movable supporting leg adjusting device.

Background

The crane is a multi-action hoisting machine for vertically hoisting and horizontally carrying heavy objects in a certain range, which is also called crown block, aerial crane and crane, and the bridge crane is hoisting equipment for hoisting materials by transversely erecting the bridge crane above workshops, warehouses and yards.

The stability of hoist self is very important, if stability has the problem, then can appear the incident easily, and the hoist adopts the landing leg to support generally, and common hoist four corners department supports through single landing leg, and bearing performance is not good, and it is enough probably to lead to the bearing capacity, takes place to skid, and causes the hoist to rock, and the serious time can lead to the hoist to roll over, has certain danger, has brought uncertainty for hoisting work simultaneously, and to above-mentioned problem, the inventor proposes a hoist movable landing leg adjusting device and is used for solving above-mentioned problem.

Disclosure of Invention

In order to solve the problem of poor bearing performance when being supported by a single supporting leg; the utility model aims to provide a crane movable supporting leg adjusting device.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a crane movable support leg adjusting device, includes crane support leg seat, the spout has been seted up to the inside of crane support leg seat, the inside slip joint of spout has the slip landing leg, the inside of spout is close to one side of slip landing leg and is provided with drive unit, the both sides of slip landing leg are provided with side strutting arrangement.

Preferably, the side support device comprises two symmetrically distributed storage grooves, the storage grooves are formed in two sides of the side support device, a rotating plate is rotatably connected to the inside of the side support device, a mounting groove is formed in one side, close to the storage grooves, of the inside of the side support device, a first telescopic cylinder is rotatably connected to one side, close to the first telescopic cylinder, of the rotating plate, an output shaft of the first telescopic cylinder is rotatably connected with one side, close to the first telescopic cylinder, of the rotating plate, a second telescopic cylinder is fixedly arranged at one end, far away from the rotating shaft, of the rotating plate, a third telescopic cylinder is fixedly arranged at one side, far away from the fourth telescopic cylinder, of the sliding support leg, and a support plate is fixedly connected to the bottoms of the third telescopic cylinder and the second telescopic cylinder.

Preferably, the driving unit comprises a first through groove, the first through groove is formed in one side, close to the sliding groove, of the inner portion of the crane supporting leg seat, a fourth telescopic oil cylinder is fixedly mounted in the first through groove, a second through groove is formed in one side, close to the fourth telescopic oil cylinder, of the sliding supporting leg, and an output shaft of the fourth telescopic oil cylinder extends to the inner portion of the second through groove and is fixedly connected with the inner wall of the second through groove.

Preferably, the both sides rotation of slip landing leg is connected with the gyro wheel, the spacing groove of symmetric distribution has been seted up to the inside of hoist landing leg seat near the both sides of spout, gyro wheel slip joint is in the inside of spacing groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the crane supporting leg works, the side supporting device is arranged, and the three-point type support is formed by utilizing the cooperation between the third telescopic oil cylinder and the two rotating plates, so that the problem that the crane is tilted when the crane is severe due to the fact that the bearing capacity is insufficient and slipping easily occurs due to poor bearing performance when the crane supporting leg is supported through a single supporting leg is avoided, the safety of the crane during operation is greatly improved, and the safety guarantee is brought to the carrying work;

2. through setting up drive unit, utilize extension and the shrink of fourth flexible hydro-cylinder output shaft to utilize the cooperation between gyro wheel and the spacing groove, stretch out or accomodate the slip landing leg to the inside of spout, conveniently stretch out or accomodate the slip landing leg from the inside of spout to the inside of spout, pack up the slip landing leg, reduced the occupation in space, avoided three landing leg to be corroded, heightened the life of equipment.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view showing a contracted state of the rotating plate according to the present utility model.

Fig. 3 is a schematic structural view of the working state of the rotating plate in the present utility model.

Fig. 4 is a schematic top cross-sectional view of a sliding leg of the present utility model.

In the figure: 1. a crane landing leg seat; 2. sliding the support leg; 3. a side support device; 31. a storage groove; 32. a rotating plate; 33. a mounting groove; 34. a first telescopic cylinder; 35. the second telescopic oil cylinder; 4. the third telescopic oil cylinder; 5. a chute; 6. a first through groove; 7. a second through slot; 8. a fourth telescopic cylinder; 9. a support plate; 10. a roller; 11. and a limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-4, the utility model provides a crane movable support leg adjusting device, which comprises a crane support leg seat 1, wherein a sliding groove 5 is formed in the crane support leg seat 1, a sliding support leg 2 is clamped in the sliding groove 5 in a sliding manner, a driving unit is arranged on one side, close to the sliding support leg 2, of the sliding groove 5, and side supporting devices 3 are arranged on two sides of the sliding support leg 2.

The side support device 3 comprises two symmetrically distributed storage grooves 31, the storage grooves 31 are formed in two sides of the side support device 3, the rotating plate 32 is rotatably connected to the inside of the side support device 3, the mounting groove 33 is formed in one side, close to the storage grooves 31, of the inside of the side support device 3, one side of the inner wall of the mounting groove 33 is rotatably connected with the first telescopic oil cylinder 34, an output shaft of the first telescopic oil cylinder 34 is rotatably connected with one side, close to the first telescopic oil cylinder 34, of the rotating plate 32, and the second telescopic oil cylinder 35 is fixedly arranged at one end, far away from the rotating shaft, of the rotating plate 32.

Through adopting above-mentioned technical scheme, during crane landing leg work, stretch out through the inside with sliding leg 2 from spout 5, stretch out the back and drive the rotation plate 32 through the extension of first flexible hydro-cylinder 34 output shaft and rotate to the one side of keeping away from sliding leg 2, roll out rotation plate 32 to suitable position from the inside of accomodating groove 31, then the downward extension and the ground contact of second flexible hydro-cylinder 35 output shaft support the hoist, during crane landing leg non-work, the second flexible hydro-cylinder 35 output shaft upwards is packed up, then first flexible hydro-cylinder 34 output shaft shrink drive rotation plate 32 rotate to the one side that is close to sliding leg 2, accomodate rotation plate 32 to the inside of accomodating groove 31, accomodate sliding leg 2 to the inside of spout 5 through the shrink of fourth flexible hydro-cylinder 8 output shaft at last.

The driving unit comprises a first through groove 6, the first through groove 6 is formed in one side, close to the sliding groove 5, of the inner portion of the crane supporting leg seat 1, a fourth telescopic oil cylinder 8 is fixedly arranged in the first through groove 6, a second through groove 7 is formed in one side, close to the fourth telescopic oil cylinder 8, of the sliding supporting leg 2, and an output shaft of the fourth telescopic oil cylinder 8 extends to the inner portion of the second through groove 7 and is fixedly connected with the inner wall of the second through groove 7.

By adopting the technical scheme, the sliding support leg 2 is stretched out or stored into the chute 5 through the extension and contraction of the output shaft of the fourth telescopic oil cylinder 8.

The two sides of the sliding support leg 2 are rotationally connected with idler wheels 10, limit grooves 11 which are symmetrically distributed are formed in the crane support leg seat 1 and are close to the two sides of the sliding chute 5, and the idler wheels 10 are in sliding clamping connection with the inside of the limit grooves 11.

Through adopting above-mentioned technical scheme, through the cooperation between gyro wheel 10 and the spacing groove 11, the better slip of slip landing leg 2 of being convenient for.

A third telescopic oil cylinder 4 is fixedly arranged on one side, far away from the fourth telescopic oil cylinder 8, of the sliding support leg 2, and support plates 9 are fixedly connected to the bottoms of the third telescopic oil cylinder 4 and the second telescopic oil cylinder 35.

Through adopting above-mentioned technical scheme, through the cooperation between the flexible hydro-cylinder of third 4 and the two pivoted plates 32, form three-point type support, have better stability, through setting up backup pad 9 simultaneously, increase and the area of contact on ground for the supporting effect is better.

Working principle: when the crane supporting leg works, the sliding supporting leg 2 extends out of the sliding groove 5, the rotating plate 32 is driven to rotate to one side far away from the sliding supporting leg 2 by the extension of the output shaft of the first telescopic oil cylinder 34 after extending out, the rotating plate 32 is rotated out of the storage groove 31 to a proper position, then the downward extension of the output shaft of the second telescopic oil cylinder 35 is contacted with the ground, and the three-point type support is formed by the cooperation between the third telescopic oil cylinder 4 and the two rotating plates 32, so that the stability is better, the supporting plate 9 is contacted with the ground, and the crane is supported; when the crane supporting leg does not work, the output shafts of the second telescopic oil cylinder 35 and the third telescopic oil cylinder 4 are retracted upwards, then the output shaft of the first telescopic oil cylinder 34 is retracted to drive the rotating plate 32 to rotate towards one side close to the sliding supporting leg 2, the rotating plate 32 is stored in the storage groove 31, and finally the sliding supporting leg 2 is stored in the sliding groove 5 through the retraction of the output shaft of the fourth telescopic oil cylinder 8.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a crane activity landing leg adjusting device, includes crane landing leg seat (1), its characterized in that: the crane supporting leg seat is characterized in that a sliding groove (5) is formed in the crane supporting leg seat (1), a sliding supporting leg (2) is connected in a sliding clamping mode in the sliding groove (5), a driving unit is arranged on one side, close to the sliding supporting leg (2), of the sliding groove (5), and side supporting devices (3) are arranged on two sides of the sliding supporting leg (2).

2. The crane movable supporting leg adjusting device according to claim 1, wherein the side supporting device (3) comprises two symmetrically-distributed storage grooves (31), the storage grooves (31) are formed in two sides of the side supporting device (3), a rotating plate (32) is rotatably connected to the inside of the side supporting device (3), a mounting groove (33) is formed in one side, close to the storage grooves (31), of the inside of the side supporting device (3), a first telescopic oil cylinder (34) is rotatably connected to one side, close to the first telescopic oil cylinder (34), of the rotating plate (32), of an output shaft of the first telescopic oil cylinder (34) is rotatably connected to one side, close to the first telescopic oil cylinder (34), of the rotating plate (32), and a second telescopic oil cylinder (35) is fixedly arranged at one end, far away from the rotating shaft.

3. The crane movable supporting leg adjusting device according to claim 1, wherein the driving unit comprises a first through groove (6), the first through groove (6) is formed in one side, close to the sliding groove (5), of the inner portion of the crane supporting leg seat (1), a fourth telescopic oil cylinder (8) is fixedly arranged in the first through groove (6), a second through groove (7) is formed in one side, close to the fourth telescopic oil cylinder (8), of the sliding supporting leg (2), and an output shaft of the fourth telescopic oil cylinder (8) extends into the second through groove (7) and is fixedly connected with the inner wall of the second through groove (7).

4. The crane movable supporting leg adjusting device according to claim 1, wherein rollers (10) are rotatably connected to two sides of the sliding supporting leg (2), symmetrically distributed limiting grooves (11) are formed in the crane supporting leg seat (1) and close to two sides of the sliding groove (5), and the rollers (10) are slidably clamped in the limiting grooves (11).

5. A crane movable support leg adjusting device according to claim 1, characterized in that a third telescopic cylinder (4) is fixedly arranged on the side of the sliding support leg (2) far away from the fourth telescopic cylinder (8).

6. The crane movable support leg adjusting device according to claim 5, wherein the bottoms of the third telescopic cylinder (4) and the second telescopic cylinder (35) are fixedly connected with a supporting plate (9).