CN213595752U

CN213595752U - Crane girder rotation driving device

Info

Publication number: CN213595752U
Application number: CN202022227542.6U
Authority: CN
Inventors: 平易; 曹峥
Original assignee: Wuxi Rongwei Hoisting Equipment Co ltd
Current assignee: Wuxi Rongwei Hoisting Equipment Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-07-02
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a hoist girder rotation driving device, comprising a base plate, the fixed stand that is provided with in bottom plate upper end, the fixed backup pad that is provided with in stand upper end, backup pad upper end middle part is provided with a supporting beam through the pivot activity, backup pad upper end one side is through the fixed electric block that sets up of mount pad, one side that electric block (5) were kept away from to the backup pad upper end is provided with the pneumatic cylinder through the round pin axle activity, the telescopic link axle head of pneumatic cylinder is through the round pin axle and a supporting beam between swing joint, electric block outside surface winding is provided with the lifting rope, a supporting beam place pivot is fixed and is provided with the gear, the spout has been seted up at electric block (5. The utility model discloses excellent in use effect can corresponding drive the balancing weight and remove when a supporting beam gyration is rotated to can need not manual operation, remove comparatively suitable position with the balancing weight automatically and stabilize with retention device.

Description

Crane girder rotation driving device

Technical Field

The utility model relates to a hoist technical field specifically is a hoist girder rotation driving device.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, cranes, etc.

But when its girder of present roof-rack crane rotated and carried out angle modulation when using, its corresponding balancing weight can not obtain linkage and girder cooperation and remove, still need artifical or follow-up position through mechanical regulation balancing weight, and it is comparatively troublesome to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist girder rotation driving device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a girder rotation driving device of a crane comprises a bottom plate, wherein the upper end of the bottom plate is fixedly provided with an upright post, a supporting plate is fixedly arranged at the upper end of the upright post, a supporting beam is movably arranged at the middle part of the upper end of the supporting plate through a rotating shaft, an electric hoist is fixedly arranged on one side of the upper end of the supporting plate through a mounting seat, a hydraulic cylinder is movably arranged on one side of the upper end of the supporting plate away from the electric hoist through a pin shaft, the telescopic rod shaft end of the hydraulic cylinder is movably connected with the supporting beam through a pin shaft, a lifting rope is wound on the outer side surface of the electric hoist, a gear is fixedly arranged on the rotating shaft of the supporting beam, a sliding groove is arranged on the outer side surface of the supporting plate at the lower end of the electric hoist, the middle part of the inner side of the sliding groove is movably clamped with a balancing weight, one side of the balancing weight, which is close to the gear, is fixedly provided with a rack, and the rack and the gear are meshed with each other.

Preferably, one side that a supporting beam lower extreme is close to electric block is provided with the wire wheel through the pivot activity, lifting rope activity block sets up between the wire wheel, can guarantee through the wire wheel that excessive friction can not take place between lifting rope and the supporting beam no matter supporting beam rotates to which angle.

Preferably, a fixed frame is fixedly arranged at the upper end of the supporting beam, a fixed pulley is movably arranged in the middle of the inner side of the fixed frame through a rotating shaft, and the direction of the lifting rope can be changed through the fixed pulley.

Preferably, the upper end in the fixed frame is movably provided with a positioning wheel through a rotating shaft, the lifting rope is movably clamped between the positioning wheel and the fixed pulley, and the lifting rope can be prevented from falling off from the outer side surface of the fixed pulley through the positioning wheel.

Preferably, a plurality of support rods are uniformly and fixedly arranged between the bottom plate and the stand column, and the stability of the stand column can be improved through the support rods.

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

1. the utility model discloses a pneumatic cylinder extension or shrink can drive a supporting beam and rotate around the pivot, and a supporting beam can drive gear revolve when rotating, can promote the rack after the gear revolve and remove, and the rack can be corresponding when removing promotes the balancing weight and removes about the spout is inside to can remove by the corresponding drive balancing weight when a supporting beam rotates, thereby can need not manual operation, remove comparatively suitable position with the balancing weight piece in order to keep device stable automatically.

2. The utility model discloses can all guarantee through the wire wheel that a supporting beam rotates which angle can not take place excessive friction between lifting rope and a supporting beam during the use, can prevent through the locating wheel that the lifting rope from droing from the fixed pulley outside surface to can further prevent the excessive friction of lifting rope.

Drawings

Fig. 1 is a schematic view of the overall structure of a crane girder rotation driving device of the present invention;

fig. 2 is an enlarged view of a crane girder rotation driving device of the present invention at a position a in fig. 1;

fig. 3 is an enlarged view of a position B in fig. 1 of a crane girder rotation driving device according to the present invention.

In the figure: 1. a base plate; 2. a column; 3. a support plate; 4. a support beam; 5. an electric hoist; 6. a hydraulic cylinder; 7. a lifting rope; 8. a gear; 9. a chute; 10. a balancing weight; 11. a rack; 12. a wire guide wheel; 13. a fixed frame; 14. a fixed pulley; 15. positioning wheels; 16. a support rod.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a girder rotation driving device of a crane comprises a bottom plate 1, wherein an upright post 2 is fixedly arranged at the upper end of the bottom plate 1, a supporting plate 3 is fixedly arranged at the upper end of the upright post 2, a supporting beam 4 is movably arranged in the middle of the upper end of the supporting plate 3 through a rotating shaft, an electric hoist 5 is fixedly arranged on one side of the upper end of the supporting plate 3 through an installation seat, a hydraulic cylinder 6 is movably arranged on one side of the upper end of the supporting plate 3 away from the electric hoist 5 through a pin shaft, the shaft end of a telescopic rod of the hydraulic cylinder 6 is movably connected with the supporting beam 4 through the pin shaft, a lifting rope 7 is wound on the outer side surface of the electric hoist 5, a gear 8 is fixedly arranged on the rotating shaft of the supporting beam 4, a chute 9 is arranged at the lower end of the electric hoist 5 on the outer side, the rack 11 and the gear 8 are meshed with each other.

One side of the lower end of the supporting beam 4, which is close to the electric hoist 5, is movably provided with a wire guide wheel 12 through a rotating shaft, the lifting rope 7 is movably clamped between the wire guide wheels 12, no matter which angle the supporting beam 4 rotates, excessive friction between the lifting rope 7 and the supporting beam 4 can be ensured through the wire guide wheel 12, the upper end of the supporting beam 4 is fixedly provided with a fixed frame 13, the middle part of the inner side of the fixed frame 13 is movably provided with a fixed pulley 14 through the rotating shaft, the direction of the lifting rope 7 can be changed through the fixed pulley 14, the upper end inside the fixed frame 13 is movably provided with a positioning wheel 15 through the rotating shaft, the lifting rope 7 is movably clamped between the positioning wheel 15 and the fixed pulley 14, the lifting rope 7 can be prevented from falling off from the outer side surface of the fixed pulley 14 through the positioning wheel 15, and a, the stability of the upright 2 can be improved by the support bar 16.

The working principle is as follows: when the device is used, an object to be lifted can be hooked by the lifting rope 7, then the lifting rope 7 can be driven to wind by rotating the electric hoist 5, so that the object can be lifted, the angle of the supporting beam 4 can be adjusted as required when the device is used, the supporting beam 4 can be driven to rotate around the rotating shaft only by extending or contracting the hydraulic cylinder 6 when the device is adjusted, the gear 8 can be driven to rotate when the supporting beam 4 rotates, the rack 11 can be pushed to move after the gear 8 rotates, the balancing weight 10 can be correspondingly pushed to move left and right in the sliding groove 9 when the rack 11 moves, so that the balancing weight 10 can be correspondingly driven to move when the supporting beam 4 rotates, manual operation is not needed, the balancing weight 10 can be automatically moved to a more proper position to keep the device stable, and the balancing weight 10 can be pushed to move left by the gear 8 and the rack 11 when the supporting beam 4, thereby can improve the device and use and make the security to can all guarantee through wire wheel 12 when the device uses that it can all to take place excessive friction between lifting rope 7 and a supporting beam 4 no matter supporting beam 4 rotates to which angle, can prevent through locating wheel 15 that lifting rope 7 from coming off from fixed pulley 14 outside surface, thereby can further prevent lifting rope 7 excessive friction, it is exactly the utility model relates to a hoist girder rotation driving device's theory of operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hoist girder rotation driving device, includes bottom plate (1), its characterized in that: the upper end of the bottom plate (1) is fixedly provided with a stand column (2), the upper end of the stand column (2) is fixedly provided with a support plate (3), the middle part of the upper end of the support plate (3) is movably provided with a support beam (4) through a rotating shaft, one side of the upper end of the support plate (3) is fixedly provided with an electric hoist (5) through a mounting seat, one side of the upper end of the support plate (3) far away from the electric hoist (5) is movably provided with a hydraulic cylinder (6) through a pin shaft, the shaft end of a telescopic rod of the hydraulic cylinder (6) is movably connected with the support beam (4) through the pin shaft, the outer side surface of the electric hoist (5) is wound with a lifting rope (7), the rotating shaft where the support beam (4) is located is fixedly provided with a gear (8), the outer side surface of the support plate (3) is, one side of the balancing weight (10) close to the gear (8) is fixedly provided with a rack (11), and the rack (11) and the gear (8) are meshed with each other.

2. A crane girder slewing drive device according to claim 1, wherein: one side of the lower end of the supporting beam (4) close to the electric hoist (5) is movably provided with a wire guide wheel (12) through a rotating shaft, and the lifting rope (7) is movably clamped between the wire guide wheels (12).

3. A crane girder slewing drive device according to claim 1, wherein: the upper end of the supporting beam (4) is fixedly provided with a fixed frame (13), and the middle part of the inner side of the fixed frame (13) is movably provided with a fixed pulley (14) through a rotating shaft.

4. A crane girder slewing drive device according to claim 3, wherein: the upper end in the fixed frame (13) is movably provided with a positioning wheel (15) through a rotating shaft, and the lifting rope (7) is movably clamped between the positioning wheel (15) and the fixed pulley (14).

5. A crane girder slewing drive device according to claim 1, wherein: a plurality of support rods (16) are uniformly and fixedly arranged between the bottom plate (1) and the upright post (2).