CN216235710U

CN216235710U - Gantry crane assembly applied to high-speed railway

Info

Publication number: CN216235710U
Application number: CN202122804234.XU
Authority: CN
Inventors: 高红; 宋鹏伟; 张娟
Original assignee: Zhengzhou Huazhong Construction Machinery Co ltd
Current assignee: Zhengzhou Huazhong Construction Machinery Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-08
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a portal crane assembly applied to a high-speed railway, which comprises a crane main body, wherein the top end of the crane main body is connected with a control box in a sliding manner, two sides of the inner wall of the control box are rotatably connected with rotating shafts, two winding wheels are sleeved and connected on the surfaces of the rotating shafts, and steel wire ropes are wound and connected on the surfaces of the two winding wheels. According to the utility model, the electric push rod arranged in the U-shaped block pushes the tooth block to move, so that the tooth block is respectively meshed with the corresponding driving gear and the corresponding driven gear, when the bridge supposed to be moved by a railway reaches a certain height, the tooth block is embedded, the rotation of the rotating shaft is effectively avoided, and the stability of the bridge in the moving process is ensured.

Description

Gantry crane assembly applied to high-speed railway

Technical Field

The utility model relates to a crane assembly, in particular to a portal crane assembly applied to a high-speed railway, and belongs to the technical field of cranes.

Background

The gantry crane is a bridge crane in which a bridge is supported on a ground rail by legs at both sides. Structurally, the crane consists of a portal frame, a cart running mechanism, a hoisting trolley, an electric part and the like. Some portal cranes have supporting legs only on one side, and the other side is supported on a factory building or a trestle to run, which is called as a semi-portal crane.

Present portal crane is at the in-process of using, when the bridge rises to appointed height, does not fix wire rope, influences the stability that the bridge erect, consequently needs design a portal crane subassembly of being applied to high speed railway.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a portal crane component applied to a high-speed railway, and aims to solve the problem that when a bridge is lifted to a specified height in the use process of the existing portal crane in the background art, a steel wire rope is not fixed, and the stability of bridge erection is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: the automatic winding device comprises a crane main body, wherein a control box is connected to the top end of the crane main body in a sliding manner, rotating shafts are rotatably connected to two sides of the inner wall of the control box, two winding wheels are sleeved on the surface of each rotating shaft, steel wire ropes are wound on the surfaces of the two winding wheels, one ends of the two steel wire ropes pass through the control box and are fixedly provided with a fixing mechanism, a plurality of limiting holes are formed in the two sides of the surface of each winding wheel at equal intervals, a driven gear is sleeved in the middle of each rotating shaft, a second servo motor is fixedly arranged at the center of the top end in the control box, a driving gear is fixedly arranged on an output shaft of the second servo motor and is meshed with the driven gear, U-shaped frames are fixedly arranged on the side of the top end in the control box and the side of the bottom end in the control box, and electric push rods are arranged at the bottom ends in the U-shaped frames, two the equal fixed mounting in electric putter's flexible end has the tooth piece, two the tooth piece is connected with corresponding driving gear and driven gear meshing respectively, the equal fixed mounting in both sides on the inside top of control box has stop gear, two stop gear is adjusted well with the rolling wheel position.

As a preferred technical scheme, the fixing mechanism comprises two U-shaped blocks, a top plate and buffer springs, the top ends of the two U-shaped blocks are fixedly connected with one end of a steel wire rope, the bottom ends of the two U-shaped blocks are connected in an embedded mode through inserting columns, the buffer springs are fixedly installed on the top ends of the inner portions of the U-shaped blocks at equal intervals, and the top plates are fixedly installed on the top ends of the buffer springs.

As a preferred technical scheme of the utility model, the limiting mechanism comprises a fixing block, a cam, a first servo motor, a connecting block and a return spring, the top end of the fixing block is fixedly connected with the top end inside the control box, a cavity is formed inside the fixing block, the bottom end inside the cavity is fixedly provided with the connecting block, two sides of the bottom end of the connecting block are fixedly provided with limiting columns, the limiting columns are connected with the cavity in an inserting manner, the wall of one side cavity of the cavity is fixedly provided with the first servo motor, the output shaft of the first servo motor is fixedly provided with the cam, and the cam is aligned with the top end of the connecting block.

As a preferred technical scheme of the utility model, the size of the end head of the limiting column is matched with the inner diameter of the limiting hole.

As a preferred technical scheme of the utility model, a plurality of heat dissipation holes are formed in two sides of the control box at equal intervals, and dust screens are fixedly mounted inside the heat dissipation holes.

As a preferred technical scheme of the utility model, a PLC controller is fixedly mounted on one side of the crane main body, and the first servo motor, the second servo motor and the electric push rod are electrically connected with an external power supply through the PLC controller.

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

1. according to the portal crane assembly applied to the high-speed railway, the electric push rod arranged in the U-shaped block pushes the tooth blocks to move, so that the tooth blocks are respectively meshed with the corresponding driving gear and the corresponding driven gear, when a bridge erected on the railway reaches a certain height, the tooth blocks are embedded, the rotation of the rotating shaft is effectively avoided, and the stability of the bridge in the moving process is ensured.

2. According to the portal crane assembly applied to the high-speed railway, the buffering spring is arranged at the top end of the U-shaped block, and the transverse plate is arranged at the top end of the buffering spring, so that a better buffering effect is achieved in the process of supposedly moving the bridge, the impact of the bridge on the U-shaped block is effectively reduced, and the stability of the bridge in the moving process is ensured.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the internal structure of the fixing block according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 according to the present invention.

In the figure: 1. a crane body; 2. a wire rope; 3. a fixing mechanism; 4. a control box; 5. a rotating shaft; 6. a winding wheel; 7. a limiting hole; 8. a U-shaped block; 9. a top plate; 10. a buffer spring; 11. inserting a column; 12. a fixed block; 13. a cavity; 14. a cam; 15. a first servo motor; 16. connecting blocks; 17. a return spring; 18. a limiting column; 19. a second servo motor; 20. a U-shaped frame; 21. an electric push rod; 22. a tooth block; 23. a driving gear; 24. a driven gear.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution of a gantry crane assembly applied to a high-speed railway:

as shown in the figures 1-4, the device comprises a crane body 1, a control box 4 is slidably connected to the top end of the crane body 1, rotating shafts 5 are rotatably connected to two sides of the inner wall of the control box 4, two winding wheels 6 are sleeved and connected to the surface of each rotating shaft 5, steel wire ropes 2 are wound and connected to the surfaces of the two winding wheels 6, a fixing mechanism 3 is fixedly installed at one end of each steel wire rope 2 penetrating through the control box 4, a plurality of limiting holes 7 are equidistantly formed in two sides of the surface of each winding wheel 6, a driven gear 24 is sleeved and connected to the middle of each rotating shaft 5, a second servo motor 19 is fixedly installed at the center of the top end inside the control box 4, a driving gear 23 is fixedly installed on an output shaft of the second servo motor 19, the driving gear 23 is meshed and connected with the driven gear 24, U-shaped frames 20 are fixedly installed on the side of the top end and the side of the bottom end inside the control box 4, and electric push rods 21 are installed at the bottom ends inside the two U-shaped frames 20, the equal fixed mounting in flexible end of two electric putter 21 has tooth piece 22, two tooth pieces 22 are connected with corresponding driving gear 23 and 24 meshing of driven gear respectively, the equal fixed mounting in both sides on 4 inside tops of control box has stop gear, two stop gear are adjusted well with wind-up wheel 6 positions, electric putter 21 through 8 internally mounted of U type piece promotes tooth piece 22 and removes, make tooth piece 22 respectively with the driving gear 23 and the 24 meshing of driven gear that correspond, when the bridge that the railway was erect reached the take-up height, establish through the inlaying of tooth piece 22, the effectual rotation of having avoided pivot 5, ensure the stability of bridge at the removal in-process.

According to fig. 1 and 2, the fixing mechanism comprises two U-shaped blocks 8, a top plate 9 and buffer springs 10, the top ends of the two U-shaped blocks 8 are fixedly connected with one ends of the steel wire ropes 2, the bottom ends of the two U-shaped blocks 8 are embedded and connected through inserting columns 11, a plurality of buffer springs 10 are fixedly installed on the top ends of the insides of the U-shaped blocks 8 at equal intervals, the top ends of the buffer springs 10 are fixedly installed with the top plate 9, and the impact of a bridge on the U-shaped blocks 8 is reduced through the buffer effect of the buffer springs 10.

According to the figures 1 and 2, the limiting mechanism comprises a fixing block 12, a cam 14, a first servo motor 15, a connecting block 16 and a return spring 17, the top end of the fixing block 12 is fixedly connected with the top end inside the control box 4, a cavity 13 is formed inside the fixing block 12, the connecting block 16 is fixedly installed at the bottom end inside the cavity 13, limiting columns 18 are fixedly installed at two sides of the bottom end of the connecting block 16, the limiting columns 18 are connected with the cavity 13 in an inserting manner, the first servo motor 15 is fixedly installed on the cavity wall at one side of the cavity 13, the cam 14 is fixedly installed on the output shaft of the first servo motor 15, the cam 14 is aligned with the top end position of the connecting block 16, the size of the end of each limiting column 18 is matched with the inner diameter of the limiting hole 7, a plurality of heat dissipation holes are formed in two sides of the control box 4 at equal intervals, a dust screen is fixedly installed inside the plurality of heat dissipation holes, and heat dissipation of the second servo motor 19 is facilitated, one side fixed mounting of hoist main part 1 has the PLC controller, and first servo motor 15, second servo motor 19 and electric putter 21 all pass through the PLC controller and external power supply electric connection, and the PLC controller model can be "FX 3U-16 MR".

When the portal crane assembly is used, firstly, two U-shaped blocks 8 are embedded and connected through inserting columns 11, a bridge to be erected is placed at the top end of a fixing mechanism 3, the bridge is stabilized in the moving process through a buffer spring 10 arranged at the bottom end of a top plate 9, then a second servo motor 19 is manually opened, a driving gear 23 is driven to rotate through the rotation of the second servo motor 19, the driving gear 23 is meshed with a driven gear 24 through the driving gear 23, a rotating shaft 5 is driven to rotate, a winding wheel 6 is driven to rotate through the rotation of the rotating shaft 5, a steel wire rope 2 is wound through the winding wheel 6, the bridge is lifted, when the bridge is lifted to a specified height, an electric push rod 21 and a first servo motor 15 are opened, a tooth block 22 is pushed through the electric push rod 21 to be respectively meshed with the corresponding driving gear 23 and the driven gear 24, thereby it is fixed with pivot 5, the rotation through first servo motor 15 drives the rotation of cam 14, extrudees connecting block 16 downstream through the rotation of cam 14, makes spacing post 18 and spacing hole 7 inlay through connecting block 16 downstream and establishes to it is spacing fixed with wind-up wheel 6, the effectual stability of guaranteeing the bridge transportation.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The portal crane component applied to the high-speed railway comprises a crane main body (1) and is characterized in that a control box (4) is connected to the top end of the crane main body (1) in a sliding mode, a rotating shaft (5) is connected to two sides of the inner wall of the control box (4) in a rotating mode, two winding wheels (6) are arranged on the surface of the rotating shaft (5) in a sleeved mode, steel wire ropes (2) are wound on the surface of the two winding wheels (6), one ends of the steel wire ropes (2) penetrate through the control box (4) and are fixedly provided with fixing mechanisms (3), a plurality of limiting holes (7) are formed in two sides of the surface of the two winding wheels (6) in an equidistant mode, a driven gear (24) is arranged on the middle of the rotating shaft (5) in a sleeved mode, a second servo motor (19) is fixedly installed at the center of the inner top end of the control box (4), a driving gear (23) is fixedly installed at the output shaft of the second servo motor (19), driving gear (23) and driven gear (24) meshing connection, the avris on the inside top of control box (4) and the equal fixed mounting of avris of bottom have U type frame (20), two electric putter (21), two are installed to the inside bottom of U type frame (20) the equal fixed mounting of flexible end of electric putter (21) has tooth piece (22), two tooth piece (22) are connected with driving gear (23) and driven gear (24) meshing that correspond respectively, the equal fixed mounting in both sides on the inside top of control box (4) has stop gear, two stop gear and wind-up wheel (6) position are adjusted well.

2. The gantry crane assembly for high-speed railway according to claim 1, wherein: fixed establishment includes two U type pieces (8), roof (9) and buffer spring (10), two the top of U type piece (8) and the one end fixed connection of wire rope (2), two the connection is established through inserting post (11) in U type piece (8) bottom, the inside top equidistance fixed mounting of U type piece (8) has a plurality of buffer spring (10), and is a plurality of the top fixed mounting of buffer spring (10) has roof (9).

3. The gantry crane assembly for high-speed railway according to claim 1, wherein: stop gear includes fixed block (12), cam (14), first servo motor (15), connecting block (16) and reset spring (17), the top of fixed block (12) and the inside top fixed connection of control box (4), cavity (13) have been seted up to the inside of fixed block (12), the inside bottom fixed mounting of cavity (13) has connecting block (16), the equal fixed mounting in both sides of connecting block (16) bottom has spacing post (18), spacing post (18) alternate with cavity (13) and are connected, one side chamber wall fixed mounting of cavity (13) has first servo motor (15), the output shaft fixed mounting of first servo motor (15) has cam (14), cam (14) are adjusted well with the top position of connecting block (16).

4. The gantry crane assembly for high-speed railway according to claim 3, wherein: the size of the end of the limiting column (18) is matched with the inner diameter of the limiting hole (7).

5. The gantry crane assembly for high-speed railway according to claim 1, wherein: a plurality of heat dissipation holes are formed in the two sides of the control box (4) at equal intervals, and a plurality of dust screens are fixedly mounted inside the heat dissipation holes.

6. The gantry crane assembly for high-speed railway according to claim 3, wherein: one side fixed mounting of hoist main part (1) has the PLC controller, first servo motor (15), second servo motor (19) and electric putter (21) all pass through PLC controller and external power electric connection.