CN212403279U - Suspension arm device of automobile crane - Google Patents

Abstract

The utility model belongs to the technical field of cranes, in particular to a crane jib device for automobiles, which comprises a jib body and a support table, wherein a mounting frame is fixedly connected with the telescopic end of the jib body, a roller shaft is arranged on the mounting frame, two hanging frames are arranged at the bottom of the roller shaft, a lifting hook capable of stretching out and retracting is arranged in each hanging frame, a support column is arranged on the support table, a lifting column capable of automatically lifting is arranged in each support column, and the top end of each lifting column is fixedly connected with a limiting support seat; the utility model discloses, through first pull hydro-cylinder pulling limit pull rod, pull hydro-cylinder pulling gallows through the second and make the roller can remain stable, get into the mounting hole through carrying the hydro-cylinder pulling lifting hook, can effectively prevent the lifting hook swing to restrict davit body swing through setting up spacing supporting seat, through restricting the swing to appear in lifting hook and davit body, can greatly reduce the emergence of accident, the security is higher.

Description

Suspension arm device of automobile crane

Technical Field

The utility model belongs to the technical field of the hoist, concretely relates to mobile crane davit device.

Background

The automobile crane is one kind of crane installed on common or special automobile chassis and has driving cab separated from the crane control cab. The crane has the advantages of good maneuverability and rapid transfer. The defects are that supporting legs are needed during working, the vehicle cannot run under load, and the vehicle is not suitable for working on soft or muddy places. The chassis performance of the automobile crane is equal to that of a lorry with the same total weight of the whole automobile, and the automobile crane meets the technical requirements of road vehicles, so that the automobile crane can pass through various roads without resistance. Such cranes are generally provided with two cabs for getting on and off the crane and the outriggers must be extended to maintain stability during operation. The range of the lifting capacity is very large, and can be from 8 tons to 1600 tons, and the number of axles of the chassis can be from 2 to 10. The crane type with the largest yield and the most widely used.

Because the automobile crane is large in size and long in suspension arm, a steel wire rope is needed to fix a hook of the crane before the automobile crane goes on the road, a rotary table is fixed through a bolt, the situations of swing arm and swing hook are prevented, but sometimes, the suspension arm and a lifting hook are probably forgotten to be limited due to carelessness of a driver, according to incomplete statistics of a construction department, the number of accidents caused by the crane in China is as high as two thousand and more, and the number of dead people is nearly three thousand every year, but the automobile crane also occupies a large proportion in crane accidents due to the situations of swing arm, swing hook and the like in the driving process of the automobile crane, so that the automobile crane capable of solving the hidden troubles is urgently needed in the market, and the suspension arm device of the automobile crane is provided, and can prevent the suspension arm and the lifting hook from swinging in the driving process of the automobile crane, and is more stable and safe when lifting the goods.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an automobile crane davit device has the characteristics of preventing "swing arm" and "pendulum hook".

In order to achieve the above object, the utility model provides a following technical scheme: a suspension arm device of an automobile crane comprises a suspension arm body and a supporting table, wherein the front surface and the back surface of the suspension arm body are fixedly connected with first traction oil cylinders, the telescopic end of each first traction oil cylinder is fixedly connected with a first traction rope, the telescopic end of the suspension arm body is fixedly connected with a mounting frame, the mounting frame is provided with a roller shaft penetrating through the front side and the back side, the upper side of the roller shaft is fixedly connected with two limiting pull rods, each first traction rope is fixedly connected with the top end of one limiting pull rod, the front surface and the back surface of the suspension arm body are fixedly connected with second traction oil cylinders, the telescopic end of each second traction oil cylinder is fixedly connected with a second traction rope, the lower side of the roller shaft is fixedly connected with two hanging frames, each second traction rope is fixedly connected with one hanging frame, and the bottom of each hanging frame is provided with a mounting hole, every all fixed mounting has one to carry in the mounting hole and draws the hydro-cylinder, every carry the flexible end fixedly connected with a third haulage rope of hydro-cylinder, every the free end fixedly connected with lifting hook of third haulage rope, the top fixedly connected with support column of brace table, the lift hole has been seted up in the support column, the downthehole fixed mounting of lift has stable cover, wear to be equipped with the lift post in the stable cover, the spacing supporting seat of top fixedly connected with of lift post, through the stable piece of spring fixedly connected with in the lift hole, the top of stable piece with the bottom fixed connection of lift post.

Preferably, the suspension arm body and the support platform are both mounted on an automobile.

Preferably, the lower side portion of the suspension arm body is wrapped in the limiting support seat, and the limiting support seat is of a U-shaped frame-shaped structure.

Preferably, the first traction oil cylinder and the second traction oil cylinder are completely the same, the two first traction oil cylinders are symmetrical about the suspension arm body, the two second traction oil cylinders are symmetrical about the suspension arm body, and the first traction oil cylinders are located on the upper side of the second traction oil cylinders.

Preferably, two of the limit pull rods are symmetrical about the mounting frame, and two of the hangers are symmetrical about the mounting frame.

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

the utility model discloses, through first pull hydro-cylinder pulling limit pull rod, pull hydro-cylinder pulling gallows through the second and make the roller can remain stable, get into the mounting hole through carrying the hydro-cylinder pulling lifting hook, can effectively prevent the lifting hook swing to restrict davit body swing through setting up spacing supporting seat, through restricting the swing to appear in lifting hook and davit body, can greatly reduce the emergence of accident, the security is higher.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged schematic structural view of the section A in the front view of the present invention;

in the figure: 1. a boom body; 2. a limiting support seat; 3. a second traction cylinder; 4. a first traction cylinder; 5. a first pull cord; 6. a limiting pull rod; 7. a mounting frame; 8. a roll shaft; 9. lifting the oil cylinder; 10. a hanger; 11. a second pull cord; 12. a stabilizing sleeve; 13. a lifting column; 14. a stabilizing block; 15. a lifting hole; 16. a spring; 17. a support pillar; 18. a support table; 19. a hook; 20. mounting holes; 21. a third pull rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a suspension arm device of an automobile crane comprises a suspension arm body 1 and a supporting table 18, wherein the front surface and the back surface of the suspension arm body 1 are fixedly connected with first traction oil cylinders 4, the telescopic end of each first traction oil cylinder 4 is fixedly connected with a first traction rope 5, the telescopic end of the suspension arm body 1 is fixedly connected with a mounting frame 7, the mounting frame 7 is provided with a roller shaft 8 penetrating through the front side and the back side, the upper side of the roller shaft 8 is fixedly connected with two limit pull rods 6, each first traction rope 5 is fixedly connected with the top end of one limit pull rod 6, the front surface and the back surface of the suspension arm body 1 are fixedly connected with second traction oil cylinders 3, the telescopic end of each second traction oil cylinder 3 is fixedly connected with a second traction rope 11, the lower side of the roller shaft 8 is fixedly connected with two hanging frames 10, each second traction rope 11 is fixedly connected with one hanging frame 10, the first traction oil cylinder 4 can pull the limit pull rod 6 through the first traction rope 5, the second traction oil cylinder 3 can pull the hanger 10 through the second traction rope 11, the limit pull rod 6 and the hanger 10 move leftwards simultaneously to keep the roller shaft 8 stable, the first traction oil cylinder 4 and the second traction oil cylinder 3 can also extend out when the crane works, so that the first traction rope 5 and the second traction rope 11 temporarily and slowly pull the limit pull rod 6 and the hanger 10, the roller shaft 8 can freely rotate in a small amplitude, the bottom of each hanger 10 is provided with a mounting hole 20, a lifting oil cylinder 9 is fixedly mounted in each mounting hole 20, the telescopic end of each lifting oil cylinder 9 is fixedly connected with a third traction rope 21, the free end of each third traction rope 21 is fixedly connected with a lifting hook 19, after the crane works, the lifting oil cylinder 9 can pull the lifting hook 19 into the mounting hole 20 through the third traction rope 21, therefore, in the driving process of the automobile, the situation of 'swing hook' cannot occur, the safety is high, the top of the supporting platform 18 is fixedly connected with a supporting column 17, a lifting hole 15 is formed in the supporting column 17, a stabilizing sleeve 12 is fixedly installed in the lifting hole 15, a lifting column 13 penetrates through the stabilizing sleeve 12, the top end of the lifting column 13 is fixedly connected with a limiting supporting seat 2, a stabilizing block 14 is fixedly connected in the lifting hole 15 through a spring 16, the top of the stabilizing block 14 is fixedly connected with the bottom end of the lifting column 13, when the suspension arm body 1 is retracted, the suspension arm body 1 can be lapped on the top of the limiting supporting seat 2, the spring 16 supports the lifting column 13 through the stabilizing block 14, so that the lifting column 13 drives the limiting supporting seat 2 to be tightly attached to the bottom of the suspension arm body 1, the position of the suspension arm body 1 can be limited, and the suspension arm body 1 is prevented from swinging in the driving process of the automobile, thereby avoiding accidents.

Specifically, the suspension arm body 1 and the support platform 18 are both mounted on an automobile.

Specifically, the limit support seat 2 wraps the lower side portion of the suspension arm body 1, and the limit support seat 2 is of a U-shaped frame structure.

Specifically, the first traction cylinder 4 and the second traction cylinder 3 are identical, and two of the first traction cylinders 4 are symmetrical with respect to the suspension arm body 1, and two of the second traction cylinders 3 are symmetrical with respect to the suspension arm body 1, and the first traction cylinders 4 are located on the upper side of the second traction cylinders 3.

Specifically, two of the limit pull rods 6 are symmetrical with respect to the mounting frame 7, and two of the hangers 10 are symmetrical with respect to the mounting frame 7.

The utility model discloses a theory of operation and use flow: the utility model can prevent the swing arm and the swing hook of the automobile crane, after the crane finishes the work, the suspension arm body 1 is withdrawn and can be lapped on the limit support seat 2, the limit support seat 2 can limit the position of the suspension arm body 1, even if the driver forgets to lock the rotary table of the crane, the swing arm can not be generated, after the suspension arm body 1 is withdrawn, the lifting oil cylinder 9 can pull the lifting hook 19 into the mounting hole 20 through the third traction rope 21, the first traction oil cylinder 4 can pull the limit pull rod 6 leftwards through the first traction rope 5, the second traction oil cylinder 3 can pull the hanger 10 leftwards through the second traction rope 11, simultaneously, the limit pull rod 6 and the hanger 10 leftwards can keep the roller shaft 8 stable, the rotation can not occur, thereby ensuring the stability of the lifting hook 19, when the crane works, the traction of the first traction oil cylinder 4 to the first traction rope 5 is loosened, loosen the drawing of second haulage rope 11 to second haulage rope 11 simultaneously for roller 8 can the free rotation, make things convenient for going on smoothly of hoist and mount work, and this device has two lifting hooks 19, can hang simultaneously from both sides to get the object of hoist and mount, prevents that the circumstances such as unhook from appearing in the goods, and the security is higher.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an automobile crane davit device, includes davit body (1) and brace table (18), its characterized in that: the telescopic boom is characterized in that the front side and the back side of the boom body (1) are fixedly connected with first traction oil cylinders (4), the telescopic end of each first traction oil cylinder (4) is fixedly connected with a first traction rope (5), the telescopic end of the boom body (1) is fixedly connected with a mounting frame (7), the mounting frame (7) is provided with a roller shaft (8) penetrating through the front side and the back side, the upper side of the roller shaft (8) is fixedly connected with two limiting pull rods (6), each first traction rope (5) is fixedly connected with the top end of one limiting pull rod (6), the front side and the back side of the boom body (1) are fixedly connected with second traction oil cylinders (3), the telescopic end of each second traction oil cylinder (3) is fixedly connected with a second traction rope (11), and the lower side of the roller shaft (8) is fixedly connected with two hanging frames (10), every second haulage rope (11) and one gallows (10) fixed connection, every mounting hole (20) have all been seted up to the bottom of gallows (10), every all fixed mounting has one to carry in mounting hole (20) and draws hydro-cylinder (9), every the flexible end fixedly connected with a third haulage rope (21) of hydro-cylinder (9), every the free end fixedly connected with lifting hook (19) of third haulage rope (21), the top fixedly connected with support column (17) of brace table (18), lifting hole (15) have been seted up in support column (17), fixedly mounted with in lifting hole (15) has stabilizing sleeve (12), wear to be equipped with in stabilizing sleeve (12) and go up and down post (13), the top fixedly connected with spacing supporting seat (2) of lifting post (13), through spring (16) fixedly connected with stabilizing block (14) in lifting hole (15), the top of the stabilizing block (14) is fixedly connected with the bottom end of the lifting column (13).

2. A mobile crane boom apparatus as claimed in claim 1, wherein: the suspension arm body (1) and the support platform (18) are both installed on an automobile.

3. A mobile crane boom apparatus as claimed in claim 1, wherein: the lower side part of the suspension arm body (1) is wrapped in the limiting supporting seat (2), and the limiting supporting seat (2) is of a U-shaped frame-shaped structure.

4. A mobile crane boom apparatus as claimed in claim 1, wherein: the first traction oil cylinder (4) and the second traction oil cylinder (3) are completely the same, the first traction oil cylinder (4) is symmetrical about the suspension arm body (1), the second traction oil cylinder (3) is symmetrical about the suspension arm body (1), and the first traction oil cylinder (4) is located on the upper side of the second traction oil cylinder (3).

5. A mobile crane boom apparatus as claimed in claim 1, wherein: the two limiting pull rods (6) are symmetrical about the mounting frame (7), and the two hanging brackets (10) are symmetrical about the mounting frame (7).

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