CN211361237U

CN211361237U - Simple dismounting device of single-beam portal crane

Info

Publication number: CN211361237U
Application number: CN201922169346.5U
Authority: CN
Inventors: 杨帆; 王涛; 张同喜; 张国爽; 范先知; 梁红梅; 陈丽华
Original assignee: China Railway 15th Bureau Group Co Ltd; Road Bridge Construction Co Ltd of China Railway 15th Bureau Group Co Ltd
Current assignee: China Railway 15th Bureau Group Co Ltd; Road Bridge Construction Co Ltd of China Railway 15th Bureau Group Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-28
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a simple dismounting device of a single-beam portal crane, which comprises a top plate, a sleeve and a roller, wherein the bottom of the top plate is connected with one end of the sleeve, and the other end of the sleeve is connected with the roller; the sleeve comprises a front sleeve and a rear sleeve which are connected to the bottom of the top plate in parallel; the front sleeve comprises a first sleeve and a second sleeve, the outer top end of the first sleeve is rotatably connected with the bottom of the top plate, the first sleeve is sleeved outside the second sleeve, the inner top surface of the first sleeve is connected with the outer top surface of the second sleeve through an elastic part, and the bottom end of the second sleeve is connected with the roller; the rear sleeve comprises a third sleeve and a fourth sleeve, the outer top end of the third sleeve is connected with the bottom of the top plate, the third sleeve and the fourth sleeve are connected through threads, and the bottom end of the fourth sleeve is connected with the roller. This device extensive applicability and dismantlement process safety and stability. The device is matched with a crane to integrally descend the gantry crane to the ground, so that the overhead working time of personnel is shortened, the safety is improved, and the cost is reduced.

Description

Simple dismounting device of single-beam portal crane

Technical Field

The utility model belongs to the technical field of dismantle, concretely relates to simple and easy dismounting device of single-beam gantry crane.

Background

The crane is a multi-action crane for vertically lifting and horizontally carrying heavy objects in a certain range, belongs to material carrying machinery, and has the working characteristics of intermittent motion, namely corresponding mechanisms for taking materials, transferring, unloading and the like in one working cycle alternately work, so that the crane is more and more widely developed and used in the market.

The crane comprises a single-beam portal crane, the disassembly of the single-beam portal crane always has great safety risk, and firstly, the portal crane generally has large span and very strict requirements on selection and standing of a mobile crane; and secondly, high-altitude operation is carried out, so that great potential safety hazards exist in the dismounting process of the dismounting personnel.

Disclosure of Invention

The utility model provides a simple and easy dismounting device of monospar gantry crane has solved monospar gantry crane and has dismantled above-mentioned technical problem of in-process.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a simple dismounting device of a single-beam portal crane comprises a top plate, a sleeve and a roller, wherein the bottom of the top plate is connected with one end of the sleeve, and the other end of the sleeve is connected with the roller; the sleeve comprises a front sleeve and a rear sleeve, and the front sleeve and the rear sleeve are connected to the bottom of the top plate in parallel; the front sleeve comprises a first sleeve and a second sleeve, the outer top end of the first sleeve is rotatably connected with the bottom of the top plate, the first sleeve is sleeved outside the second sleeve, the inner top surface of the first sleeve is connected with the outer top surface of the second sleeve through an elastic part, and the bottom end of the second sleeve is connected with the roller; the rear sleeve comprises a third sleeve and a fourth sleeve, the outer top end of the third sleeve is connected with the bottom of the top plate, the third sleeve and the fourth sleeve are connected through threads, and the bottom end of the fourth sleeve is connected with the roller.

Further, the outer top end of the first sleeve is rotatably connected with the bottom of the top plate through a bolt; the outer top end of the third sleeve is fixedly connected with the bottom of the top plate.

Furthermore, an internal thread is arranged on the inner surface of the third sleeve, an external thread is arranged on the outer surface of the fourth sleeve, and the external thread is matched with the internal thread.

Further, the outer top end of the first sleeve is provided with a connecting lug, the bottom of the top plate is provided with a connecting block, and the connecting block is rotatably connected with the connecting lug through a bolt.

Further, the elastic member is a high-pressure spring.

Further, the top plate is made of a steel material.

Furthermore, a through hole is formed in the top plate and is used for being connected with a base of the crane.

Furthermore, a brake device is arranged on the roller.

The utility model discloses the beneficial effect who reaches: preceding sleeve pipe and back sleeve pipe parallel connection are in the roof bottom, and the preceding sleeve pipe rotates with the roof bottom to be connected, and preceding sleeve pipe elasticity is flexible, adaptation ground unevenness that can be better when using has guaranteed the steady of the hoist of treating the dismantlement, has increased the suitability and the safety and stability of device. Back sleeve pipe and roof bottom fixed connection play the effect of part bearing, and simultaneously, back sleeve pipe's length also can be adjusted through the screw thread rotation between third sleeve pipe and the fourth sleeve pipe, further increases the suitability of device. The cooperation of preceding sleeve pipe and back sleeve pipe makes this device extensive applicability and dismantlement process safety and stability. The device is simple in structure, simple and convenient to mount and safe, the rolling performance of the rollers is utilized, the gantry crane is integrally descended to the ground by matching with a crane, the dismounting process is simplified, the high-altitude operation time of personnel is greatly shortened, the dismounting safety is improved, and the integral dismounting cost is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention on uneven ground;

fig. 3 is a structural diagram of the front sleeve of the present invention.

In the figure: 1-a top plate; 21-a first sleeve; 22-a second sleeve; 23-an elastic member; 31-a third sleeve; 32-a fourth sleeve; 4-a roller; 5-connecting lugs; 6-connecting blocks; 7-bolt; 8-a base; 9-the ground; 10-lower engaging lug.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in figure 1, the simple dismounting device for the single-beam portal crane comprises a top plate 1, a sleeve and a roller 4, wherein the bottom of the top plate 1 is connected with one end of the sleeve, and the other end of the sleeve is connected with the roller 4. The sleeve pipe comprises a front sleeve pipe and a rear sleeve pipe, and the front sleeve pipe and the rear sleeve pipe are connected to the bottom of the top plate 1 in parallel. The top plate 1 is made of steel, and a through hole is formed in the top plate 1. This device is installed under the base 8 of four landing legs of monospar gantry crane, specifically is, and powerful bolt passes the through-hole of roof 1, is connected roof 1 and monospar gantry crane's landing leg base 8.

As shown in fig. 2 and 3, the front sleeve includes a first sleeve 21 and a second sleeve 22, an outer top end of the first sleeve 21 is rotatably connected with the bottom of the top plate 1, the first sleeve 21 is sleeved outside the second sleeve 22, an inner top surface of the first sleeve 21 is connected with an outer top surface of the second sleeve 22 through an elastic member 23, a lower engaging lug 10 is arranged at a bottom end of the second sleeve 22, and the lower engaging lug 10 is connected with the roller 4. In this embodiment, the outer top of first sleeve pipe 21 is equipped with engaging lug 5, and roof 1 bottom sets up connecting block 6, and connecting block 6 passes through bolt 7 with engaging lug 5 and rotates to be connected. The elastic member 5 is a high-pressure spring. The front sleeve is rotatably connected with the bottom of the top plate 1, the front sleeve is elastically telescopic, and can better adapt to uneven ground when in use, so that the stability of the crane to be disassembled is ensured, and the applicability and safety stability of the device are improved.

The rear sleeve comprises a third sleeve 31 and a fourth sleeve 32, the outer top end of the third sleeve 31 is fixedly connected with the bottom of the top plate 1 through a connecting block 6, the third sleeve 31 is connected with the fourth sleeve 32 through threads, the bottom end of the fourth sleeve 32 is provided with a lower connecting lug 10, and the lower connecting lug 10 is connected with the roller 4. The roller 4 is provided with a brake device. The fixed connection is welding. In this embodiment, an internal thread is disposed on the inner surface of the third sleeve 31, an external thread is disposed on the outer surface of the fourth sleeve 32, and the external thread is matched with the internal thread. The rear sleeve is fixedly connected with the bottom of the top plate 1 to play a part of load bearing effect, and meanwhile, the length of the rear sleeve can be adjusted through the rotation of the threads between the third sleeve 31 and the fourth sleeve 32, so that the applicability of the device is further improved.

The single-beam portal crane comprises a main beam and four supporting legs connected with the main beam, and the main beam is rotatably connected with the supporting legs. In the actual use process, two cranes are selected according to the total weight of the portal crane, the station is selected, the steel wire ropes of the two cranes are stressed uniformly, the main beam of the single-beam portal crane is lifted, the bases 8 of the four supporting legs of the single-beam portal crane are separated from the ground by a certain distance, and the device is arranged below the base 8. After the installation, the third sleeve 31 and the fourth sleeve 32 are rotated to adjust the length of the rear sleeve, so that the idler wheels 4 are in contact with the ground, then the crane is controlled to slowly descend the main beam of the single-beam portal crane, the four support legs slowly move in a splayed shape, and finally the single-beam portal crane is horizontally placed on the ground to be detached. Compared with the traditional disassembly, the device has the advantages that the height and the angle can be adjusted, so that the applicability is wider, and the requirements on the type selection and the station position of a crane are also reduced; the front sleeve is telescopic, so that the front sleeve can better adapt to uneven ground when in use, and the stability of the crane to be disassembled is ensured; most of the disassembling procedures are carried out on the ground, so that the overhead working time in the disassembling process is reduced, the safety is greatly improved, and the construction safety of disassembling personnel is ensured.

The utility model discloses the beneficial effect who reaches: the cooperation of preceding sleeve pipe and back sleeve pipe makes this device extensive applicability and dismantlement process safety and stability. The device is simple in structure, simple and convenient to mount and safe, the rolling performance of the rollers is utilized, the gantry crane is integrally descended to the ground by matching with a crane, the dismounting process is simplified, the high-altitude operation time of personnel is greatly shortened, the dismounting safety is improved, and the integral dismounting cost is reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A simple dismounting device of a single-beam portal crane is characterized by comprising a top plate, a sleeve and a roller, wherein the bottom of the top plate is connected with one end of the sleeve, and the other end of the sleeve is connected with the roller;

the sleeve comprises a front sleeve and a rear sleeve, and the front sleeve and the rear sleeve are connected to the bottom of the top plate in parallel;

the front sleeve comprises a first sleeve and a second sleeve, the outer top end of the first sleeve is rotatably connected with the bottom of the top plate, the first sleeve is sleeved outside the second sleeve, the inner top surface of the first sleeve is connected with the outer top surface of the second sleeve through an elastic part, and the bottom end of the second sleeve is connected with the roller;

the rear sleeve comprises a third sleeve and a fourth sleeve, the outer top end of the third sleeve is connected with the bottom of the top plate, the third sleeve and the fourth sleeve are connected through threads, and the bottom end of the fourth sleeve is connected with the roller.

2. The simple dismounting device of the single-beam gantry crane according to claim 1, wherein the outer top end of the first sleeve is rotatably connected with the bottom of the top plate through a bolt; the outer top end of the third sleeve is fixedly connected with the bottom of the top plate.

3. The simple dismounting device of the single-beam gantry crane according to claim 1, wherein an internal thread is arranged on the inner surface of the third sleeve, an external thread is arranged on the outer surface of the fourth sleeve, and the external thread is matched with the internal thread.

4. The simple dismounting device of the single-beam gantry crane according to claim 2, wherein the outer top end of the first sleeve is provided with a connecting lug, the bottom of the top plate is provided with a connecting block, and the connecting block is rotatably connected with the connecting lug through a bolt.

5. The simple dismounting device of the single-beam gantry crane according to claim 1, wherein the elastic member is a high-pressure spring.

6. The easy dismounting device of single-beam gantry crane according to claim 1, wherein the top plate is made of steel.

7. The simple dismounting device of the single-beam gantry crane according to claim 1, wherein a through hole is formed in the top plate and used for being connected with a base of the crane.

8. The simple dismounting device of the single-beam gantry crane according to claim 1, wherein a brake device is arranged on the roller.