CN216235719U

CN216235719U - Pin-connected telescopic crane boom

Info

Publication number: CN216235719U
Application number: CN202122511863.3U
Authority: CN
Inventors: 林先荣
Original assignee: Greno Jiangsu Intelligent Equipment Co ltd
Current assignee: Greno Jiangsu Intelligent Equipment Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-04-08
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a pin-jointed telescopic crane jib, which comprises a supporting plate, wherein the bottom wall of the supporting plate is provided with four mutually symmetrical universal wheels, the top wall of the supporting plate is welded with a fixed block, the top wall of the fixed block is provided with a placing cavity, a first motor is fixed in the placing cavity, the output shaft of the first motor penetrates through the top wall of the placing cavity and extends outwards to be welded with a rotating disc, the top wall of the rotating disc is respectively welded with a supporting frame and a first electric telescopic rod, and the supporting frame and the free end of the first electric telescopic rod are jointly and rotatably connected with a fixed plate. According to the utility model, by arranging the second motor, the moving block, the threaded rod and other structures, and starting the second motor, the second motor drives the threaded rod to rotate through the meshing action of the first bevel gear and the second bevel gear, so that the threaded rod drives the moving plate to move, the corresponding length adjustment can be carried out according to different hoisting conditions, and the operation is convenient.

Description

Pin-connected telescopic crane boom

Technical Field

The utility model relates to the technical field of cranes, in particular to a pin-jointed telescopic crane boom.

Background

The existing cantilever crane comprises a vertical frame and a cantilever beam horizontally arranged, the cantilever beam can rotate horizontally for 180 degrees around a rotation center of the vertical frame, an electric hoist is installed at the end of the cantilever beam, and the electric hoist is used for realizing the hoisting of corresponding workpieces in the rotation process of the cantilever beam.

However, the lifting range of the cantilever crane is small, the length of the cantilever beam is relatively fixed, corresponding length adjustment cannot be carried out according to different lifting conditions, and the lifting operation has certain limitations.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a pin-jointed telescopic crane boom.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a pin joint formula telescopic crane davit, includes the backup pad, the diapire of backup pad is provided with the universal wheel of four mutual symmetries, the roof welding of backup pad has the fixed block, the roof of fixed block has been seted up and has been placed the chamber, it is fixed with first motor to place the intracavity, the output shaft of first motor runs through the roof of placing the chamber and outwards stretches out the welding and have the rolling disc, the roof of rolling disc has welded support frame and an electric telescopic handle respectively, the support frame rotates jointly with an electric telescopic handle's free end and is connected with the fixed plate, the fixed plate is connected with lifts by crane apart from adjusting device.

Preferably, lift by crane apart from adjusting device and include the support case, the roof welded fastening of support case and fixed plate, the sliding tray has been seted up to the fixed plate, the support incasement is fixed and is provided with the second motor, the output shaft welding of second motor has the driving shaft, the driving shaft runs through the roof of sliding tray and stretches out to the sliding tray, the driving shaft welding has first bevel gear, first bevel gear meshes there is the second bevel gear, the center of rotation department welding of second bevel gear has the threaded rod, threaded rod threaded connection has the movable plate, the movable plate is connected with angle adjustment mechanism.

Preferably, angle adjustment mechanism includes the connecting block, the diapire welded fastening of connecting block and movable plate, the lateral wall welding of connecting block has second electric telescopic handle, the one end that the support frame was kept away from to the movable plate is rotated and is connected with the jib, second electric telescopic handle's free end and jib rotate and are connected, the diapire of jib rotates and is connected with the lifting hook.

Preferably, the moving plate is slidably connected with the sliding groove, a thread groove is formed in the moving plate, and the threaded rod is in threaded connection with the moving plate through the thread groove.

Preferably, the size of the first bevel gear is equal to that of the second bevel gear, and the rotation connection point of the first electric telescopic rod and the fixed plate is located on the bottom wall of the fixed plate.

Preferably, the threaded rod is rotatably connected with the wall of the sliding groove, and the lifting hook is made of a metal material.

Compared with the prior art, the utility model has the advantages that:

1. through setting up first motor, first electric telescopic handle and second electric telescopic handle isotructure, make to drive the fixed plate and rotate through starting first electric telescopic handle, through setting up second electric telescopic handle, make to start second electric telescopic handle and drive the jib and rotate, make the turned angle of jib adjust, thereby the jib of being convenient for lifts by crane the goods, through setting up first motor, make to start first motor and drive the rolling disc and rotate, thereby make the jib rotate, be convenient for remove the goods to suitable position.

2. Through setting up second motor, first bevel gear and second bevel gear isotructure, through starting the second motor for the second motor drives first bevel gear through the driving shaft and rotates, and first bevel gear drives the threaded rod through the meshing with second bevel gear and rotates, thereby makes the movable plate drive jib and removes, makes the distance of lifting by crane obtain adjusting, and the staff of being convenient for operates.

Drawings

FIG. 1 is a schematic structural diagram of a pin-jointed telescopic crane boom according to the present invention;

FIG. 2 is an enlarged schematic view of part A of a pin-jointed telescopic crane boom provided by the utility model;

fig. 3 is a top view of a first bevel gear and a second bevel gear in a pin-jointed telescopic crane boom according to the utility model.

In the figure: the lifting device comprises a supporting plate 1, universal wheels 2, a fixing block 3, a placing cavity 4, a first motor 5, a rotating disc 6, a supporting frame 7, a first electric telescopic rod 8, a fixing plate 9, a supporting box 10, a second motor 11, a sliding groove 12, a driving shaft 13, a first bevel gear 14, a second bevel gear 15, a threaded rod 16, a movable plate 17, a connecting block 18, a second electric telescopic rod 19, a suspender 20 and a hook 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a pin-jointed telescopic crane boom comprises a supporting plate 1, the bottom wall of the supporting plate 1 is provided with four mutually symmetrical universal wheels 2, the top wall of the supporting plate 1 is welded with a fixing block 3, the top wall of the fixing block 3 is provided with a placing cavity 4, a first motor 5 is fixed in the placing cavity 4, an output shaft of the first motor 5 penetrates through the top wall of the placing cavity 4 and extends outwards to be welded with a rotating disc 6, the top wall of the rotating disc 6 is welded with a supporting frame 7 and a first electric telescopic rod 8 respectively, the supporting frame 7 and the free end of the first electric telescopic rod 8 are connected with a fixing plate 9 in a rotating mode, and the fixing plate 9 is connected with a hoisting distance adjusting device.

The lifting distance adjusting device comprises a supporting box 10, the supporting box 10 is welded and fixed with the top wall of a fixing plate 9, a sliding groove 12 is formed in the fixing plate 9, a second motor 11 is fixedly arranged in the supporting box 10, an output shaft of the second motor 11 is welded with a driving shaft 13, the driving shaft 13 penetrates through the top wall of the sliding groove 12 and extends into the sliding groove 12, a first bevel gear 14 is welded with the driving shaft 13, the first bevel gear 14 is meshed with a second bevel gear 15, a threaded rod 16 is welded at the rotating center of the second bevel gear 15, the threaded rod 16 is in threaded connection with a moving plate 17, and the moving plate 17 is connected with an angle adjusting mechanism.

The angle adjusting mechanism comprises a connecting block 18, the connecting block 18 is fixedly welded with the bottom wall of the moving plate 17, a second electric telescopic rod 19 is welded on the side wall of the connecting block 18, one end, far away from the support frame 7, of the moving plate 17 is rotatably connected with a hanging rod 20, the free end of the second electric telescopic rod 19 is rotatably connected with the hanging rod 20, and the bottom wall of the hanging rod 20 is rotatably connected with a lifting hook 21.

The movable plate 17 is slidably connected with the sliding groove 12, a thread groove is formed in the movable plate 17, the threaded rod 16 is in threaded connection with the movable plate 17 through the thread groove, the size of the first bevel gear 14 is equal to that of the second bevel gear 15, the rotating connection point of the first electric telescopic rod 8 and the fixed plate 9 is located on the bottom wall of the fixed plate 9, the threaded rod 16 is rotatably connected with the groove wall of the sliding groove 12, and the lifting hook 21 is made of metal materials.

In the utility model, the device is moved to a position needing lifting goods through the universal wheel 2, the first electric telescopic rod 8 is started to enable the first electric telescopic rod 8 to drive the fixing plate 9 to rotate, the moving distance of the moving plate 17 is adjusted according to the position of the goods from the device, the second motor 11 is started to drive the driving shaft 13 to rotate, the driving shaft 13 drives the first bevel gear 14 to rotate, the driving shaft 13 drives the threaded rod 16 to rotate through the meshing action of the first bevel gear 14 and the second bevel gear 15, the threaded rod 16 drives the moving plate 17 to move when rotating, until the moving plate 17 drives the suspender 20 to move to a proper distance, after the moving is finished, the second electric telescopic rod 19 is started to enable the second electric telescopic rod 19 to drive the suspender 20 to rotate, so that the rotating angle of the suspender 20 is adjusted, make the position at more adaptation goods place, hang the goods on lifting hook 21, through starting first motor 5 for first motor 5 drives rolling disc 6 and rotates, thereby removes the goods to suitable position, and it is comparatively convenient to operate, and the people of being convenient for operate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a pin joint formula telescopic crane davit, includes backup pad (1), its characterized in that, the diapire of backup pad (1) is provided with universal wheel (2) of four mutual symmetries, the roof welding of backup pad (1) has fixed block (3), the roof of fixed block (3) has been seted up and has been placed chamber (4), it has first motor (5) to place chamber (4) internal fixation, the output shaft of first motor (5) runs through the roof of placing chamber (4) and outwards stretches out the welding and have rolling disc (6), the roof of rolling disc (6) has welded support frame (7) and first electric telescopic handle (8) respectively, support frame (7) rotate jointly with the free end of first electric telescopic handle (8) and are connected with fixed plate (9), fixed plate (9) are connected with and lift by crane apart from adjusting device.

2. A pinned telescopic crane boom according to claim 1, the lifting distance adjusting device comprises a supporting box (10), the supporting box (10) is welded and fixed with the top wall of the fixing plate (9), the fixed plate (9) is provided with a sliding groove (12), the support box (10) is internally and fixedly provided with a second motor (11), an output shaft of the second motor (11) is welded with a driving shaft (13), the driving shaft (13) penetrates through the top wall of the sliding groove (12) and extends into the sliding groove (12), a first bevel gear (14) is welded on the driving shaft (13), a second bevel gear (15) is meshed with the first bevel gear (14), a threaded rod (16) is welded at the rotating center of the second bevel gear (15), the threaded rod (16) is in threaded connection with a moving plate (17), and the moving plate (17) is connected with an angle adjusting mechanism.

3. The pinned telescopic crane boom of claim 2, wherein the angle adjusting mechanism comprises a connecting block (18), the connecting block (18) is welded and fixed with the bottom wall of the moving plate (17), a second electric telescopic rod (19) is welded on the side wall of the connecting block (18), one end of the moving plate (17) far away from the support frame (7) is rotatably connected with a boom (20), the free end of the second electric telescopic rod (19) is rotatably connected with the boom (20), and the bottom wall of the boom (20) is rotatably connected with a hook (21).

4. A pinned telescopic crane boom according to claim 3, wherein the moving plate (17) is slidably connected with the sliding groove (12), the moving plate (17) is internally provided with a threaded groove, and the threaded rod (16) is in threaded connection with the moving plate (17) through the threaded groove.

5. A pinned telescopic crane boom according to claim 4, wherein the size of the first bevel gear (14) is equal to the size of the second bevel gear (15), and the rotational connection point of the first electric telescopic rod (8) and the fixed plate (9) is located at the bottom wall of the fixed plate (9).

6. A pinned telescopic crane boom according to claim 5, wherein the threaded rod (16) is rotatably connected with the wall of the sliding channel (12), and the hook (21) is made of a metal material.