CN220182585U - Crane with overhead pulley - Google Patents

Abstract

The utility model discloses a pulley overhead crane which comprises a bracket, a cross beam, a movable trolley, a supporting bottom plate, a retracting mechanism, a steel wire rope, a lubrication guiding mechanism and a pulley lifting mechanism, wherein two groups of the two ends of the lower surface of the cross beam are symmetrically arranged on the bracket, two groups of the cross beam are arranged in parallel, the movable trolley is movably arranged on the cross beam, two ends of the supporting bottom plate are connected with the two groups of movable trolley, the retracting mechanism is arranged on the supporting bottom plate, the lubrication guiding mechanism is arranged on the upper surface of the supporting bottom plate, one end of the steel wire rope bypasses the lubrication guiding mechanism and is connected with the retracting mechanism, a suspension hole is formed in the supporting bottom plate, and the other end of the steel wire rope penetrates through the suspension hole and bypasses the pulley lifting mechanism to be connected with the side wall of the supporting bottom plate. The utility model belongs to the technical field of cranes, and particularly provides a pulley overhead crane which can uniformly retract a steel wire rope on a winding roller and simultaneously coat lubricating oil on the surface of the steel wire rope to avoid the influence of excessive friction on the service life of the steel wire rope.

Description

Crane with overhead pulley

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a pulley overhead crane.

Background

Bridge cranes are common overhead-sheave cranes, which are hoisting equipment for hoisting materials transversely erected above workshops, warehouses and yards, and the two ends of the bridge crane are seated on tall cement columns or metal supports in a bridge-like shape. The bridge frame of the bridge crane runs longitudinally along the tracks paved on the two side high frames, so that the space below the bridge frame can be fully utilized to hoist materials, the material is not blocked by ground equipment, and the bridge frame is a lifting machine with the widest application range and the largest number.

The bridge crane realizes the lifting of heavy objects through the retraction and the extension of the steel wire rope, and the steel wire rope is difficult to be uniformly distributed on the retraction roller in the retraction process of the steel wire rope; in addition, the steel wire rope can rub with a plurality of guide wheels, pulleys and winding rollers in the winding and unwinding process, and the service life of the steel wire rope can be influenced by long-time use friction.

Disclosure of Invention

Aiming at the situation, in order to make up the existing defects, the utility model provides the pulley overhead crane which can uniformly retract the steel wire rope on the winding roller and can coat lubricating oil on the surface of the steel wire rope at the same time, so that the service life of the steel wire rope is prevented from being influenced by excessive friction force.

The utility model provides the following technical scheme: the utility model provides a pulley overhead crane which comprises a bracket, a cross beam, a movable trolley, a supporting bottom plate, a retracting mechanism, a steel wire rope, a lubrication guiding mechanism and a pulley lifting mechanism, wherein two groups of the bracket are symmetrically arranged at two ends of the lower surface of the cross beam, the cross beam is provided with two groups in parallel, the movable trolley is movably arranged on the cross beam, two ends of the supporting bottom plate are connected with the two groups of movable trolleys, the retracting mechanism is arranged on the supporting bottom plate, the lubrication guiding mechanism is arranged on the upper surface of the supporting bottom plate, one end of the steel wire rope bypasses the lubrication guiding mechanism and is connected with the retracting mechanism, a suspension hole is formed in the supporting bottom plate, and the other end of the steel wire rope penetrates through the suspension hole and bypasses the pulley lifting mechanism to be connected with the side wall of the supporting bottom plate.

For realizing wire rope's even receive and releases, receive and release mechanism includes support riser, receive and release subassembly and even wire subassembly, it is equipped with two sets of to support the riser, two sets of support the riser correspond and locate perpendicularly on the supporting baseplate, receive and release subassembly rotates and locates between two sets of support risers, even wire subassembly is located the top of receive and release subassembly.

Further, receive and release subassembly includes receive and release motor and receive and release roller, receive and release motor is fixed to be located on a set of support riser, receive and release roller rotation is located between two sets of support risers, receive and release roller's one end links to each other with receive the output shaft of release motor, wire rope's one end is convoluteed on receive and release roller, receive and release roller's both ends are convoluteed and are equipped with two sets of wire ropes.

Further, even wire assembly includes displacement motor, displacement screw rod, guide slide bar and flitch, the outside of a set of support riser is located to the displacement motor is fixed, the displacement screw rod rotates to be located between two sets of support risers, the one end of displacement screw rod links to each other with the output shaft of displacement motor, the guide slide bar is located between two sets of support risers, receive and release roller is located the below in displacement screw rod and guide slide bar clearance, the displacement screw rod is bi-directional screw rod, the one end of flitch slides and locates on the guide slide bar, the flitch is equipped with two sets of, two sets of the other end of flitch links to each other with the displacement screw rod through the screw respectively, two sets of flitch correspond the setting with two sets of wire ropes respectively, the upper surface middle part of flitch is equipped with support one, rotate on support one and be equipped with receive and release guide wheel, the rope hole has been seted up at one side middle part of flitch, the rope hole is located receive and release guide wheel one side under, the rope hole is located receive and release roller's top, wire rope's free end passes the rope hole and walks around and links to each other with lubricated guiding mechanism.

For realizing wire rope's direction and periodic lubrication, lubrication guiding mechanism corresponds with the screw thread board and is equipped with two sets of, lubrication guiding mechanism includes oil tank, oil pump, fixed block, oil pipe, branch pipe, support second, pivot and lubrication guiding wheel, the oil tank is fixed to be located on the lateral wall of supporting baseplate, the oil pump is fixed to be located on the lateral wall of supporting baseplate, the oil inlet of oil pump passes through the pipeline and links to each other with the oil tank, oil pipe links to each other with the oil-out of oil pump, oil pipe passes through the fixed block and links to each other with the lateral wall of supporting baseplate, support second is fixed to be located on the supporting baseplate, lubrication guiding wheel rotates through the pivot and locates on support second, pivot and lubrication guiding wheel are hollow structure, the oil outlet has been seted up to lubrication guiding wheel's surface, the size of oil outlet hole is millimeter level, the one end of branch pipe links to each other with oil pipe, the other end of branch pipe is rotated with the pivot and is connected, wire rope winds and locates on the lubrication guiding wheel.

Preferably, the second support is provided with two groups of lubrication guide wheels, the second support is correspondingly provided with two groups of lubrication guide wheels, and the steel wire rope penetrates through a gap between the two groups of lubrication guide wheels to be connected with the pulley lifting mechanism.

For realizing the lifting of goods, pulley lifting mechanism includes protecting crust, pulley and lifting hook, the pulley rotates to locate in the protecting crust, the pulley corresponds with wire rope and is equipped with two sets of, wire rope bypasses pulley and support bottom plate and links to each other, the lower extreme of protecting crust is located to the lifting hook.

The beneficial effects obtained by the utility model by adopting the structure are as follows: the pulley overhead crane provided by the utility model has the following advantages:

(1) The guiding winding and unwinding of the steel wire ropes are realized through the matching of the winding and unwinding assembly and the uniform wire assembly, so that the steel wire ropes can be uniformly wound on the winding and unwinding roller, and the steel wire ropes are prevented from being disordered;

(2) The lubricating oil can be regularly coated on the surface of the steel wire rope under the action of the lubricating guide mechanism, so that the friction force of the steel wire rope is reduced, and the service life of the steel wire rope is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic side view of the retracting mechanism, the lubrication guiding mechanism and the pulley hoisting mechanism of the present utility model;

FIG. 3 is a schematic view of the internal structure of the pulley hoisting mechanism of the present utility model;

fig. 4 is a schematic side view of a homogeneous wire assembly of the present utility model.

Wherein, 1, a bracket, 2, a cross beam, 3, a moving trolley, 4, a supporting bottom plate, 5, a steel wire rope, 6, a supporting vertical plate, 7, a winding and unwinding motor, 8, a winding and unwinding roller, 9, a displacement motor, 10, a displacement screw, 11 and a guiding slide bar, 12, screw plate, 13, support one, 14, receive and release leading wheel, 15, oil tank, 16, oil pump, 17, fixed block, 18, oil pipe, 19, branch pipe, 20, support two, 21, lubrication leading wheel, 22, protective housing, 23, pulley, 24, lifting hook.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1 and 2, this embodiment provides a pulley 23 overhead crane, including support 1, crossbeam 2, travelling car 3, supporting baseplate 4, receive and release mechanism, wire rope 5, lubrication guiding mechanism and pulley hoist mechanism, support 1 is equipped with two sets of in crossbeam 2's lower surface both ends symmetry, crossbeam 2 is equipped with two sets of parallelly, two sets of crossbeam 2 cooperation realize double-crossbeam 2 structure, travelling car 3 removes to locate on crossbeam 2, travelling car 3 is prior art, so in this scheme need not be detailed again, the both ends of supporting baseplate 4 link to each other with two sets of travelling car 3, receive and release mechanism locates on supporting baseplate 4, lubrication guiding mechanism locates the upper surface of supporting baseplate 4, wire rope 5's one end is walked around lubrication guiding mechanism and is linked to each other with receive and release mechanism, the suspension hole has been seted up on the supporting baseplate 4, wire rope 5's the other end passes the suspension hole and is walked around pulley hoist mechanism and links to each other with supporting baseplate 4's lateral wall, can realize pulley hoist mechanism's altitude mixture control under wire rope 5's effect, thereby realize the action of lifting.

Specifically, referring to fig. 2, 3 and 4, in this embodiment, the retraction mechanism includes two sets of support risers 6, two sets of support risers 6 are vertically disposed on the support base plate 4 correspondingly, the retraction assembly is rotatably disposed between the two sets of support risers 6, the uniform wire assembly is rotatably disposed between the two sets of support risers 6, and the uniform wire assembly is located above the retraction assembly, so that the wire rope 5 can be uniformly retracted on the retraction assembly under the action of the uniform wire assembly; the winding and unwinding assembly comprises a winding and unwinding motor 7 and a winding and unwinding roller 8, the winding and unwinding motor 7 is fixedly arranged on one group of supporting vertical plates 6, the winding and unwinding roller 8 is rotationally arranged between the two groups of supporting vertical plates 6, one end of the winding and unwinding roller 8 is connected with an output shaft of the winding and unwinding motor 7, one end of the wire rope 5 is wound on the winding and unwinding roller 8, the winding and unwinding roller 8 can be driven to realize winding and unwinding actions of the wire rope 5 under the action of the winding and unwinding motor 7, and two groups of wire ropes 5 are wound at two ends of the winding and unwinding roller 8; the even wire assembly includes displacement motor 9, displacement screw rod 10, direction slide bar 11 and screw thread board 12, the outside of a set of support riser 6 is located to displacement motor 9 is fixed, displacement screw rod 10 rotates to locate between two sets of support riser 6, the one end of displacement screw rod 10 links to each other with the output shaft of displacement motor 9, the direction slide bar 11 is located between two sets of support riser 6, receive and release roller 8 is located the below in displacement screw rod 10 and direction slide bar 11 clearance, displacement screw rod 10 is bi-directional screw rod, the one end of screw thread board 12 slides and locates on the direction slide bar 11, screw thread board 12 is equipped with two sets of screw thread board 12, the other end of two sets of screw thread board 12 links to each other through the screw thread respectively with displacement screw rod 10, two sets of screw thread board 12 correspond the setting with two sets of wire rope 5 respectively, the upper surface middle part of screw thread board 12 is equipped with support one 13, rotate on support one 13 is equipped with receive and release guide wheel 14, the rope hole has been seted up at the middle part of one side of screw thread board 12, the rope hole is located receive and release guide wheel 14 one side, the rope hole is located receive and release guide wheel 8 top, the free end of wire rope 5 passes the hole and walks around receive and release guide wheel 14 and evenly under the effect of wire rope 5 and can receive and release guide wire rope 5 under the action of guide mechanism under the guide wire rope guide mechanism 5 and the effect of guide wire assembly.

Specifically, referring to fig. 2 and 3, in this embodiment, two sets of lubrication guiding mechanisms are correspondingly provided with the threaded plate 12, each lubrication guiding mechanism includes an oil tank 15, an oil pump 16, a fixed block 17, an oil pipe 18, a branch pipe 19, a second support 20, a rotating shaft and a lubrication guiding wheel 21, the oil tank 15 is fixedly arranged on the side wall of the supporting base plate 4, the oil pump 16 is fixedly arranged on the side wall of the supporting base plate 4, an oil inlet of the oil pump 16 is connected with the oil tank 15 through a pipeline, the oil pipe 18 is connected with an oil outlet of the oil pump 16, the oil pipe 18 is connected with the side wall of the supporting base plate 4 through the fixed block 17, the second support 20 is fixedly arranged on the supporting base plate 4, the lubrication guiding wheel 21 is rotatably arranged on the second support 20 through the rotating shaft, the rotating shaft and the lubrication guiding wheel 21 are of hollow structures, an oil outlet hole is formed in the outer surface of the lubrication guiding wheel 21, one end of the branch pipe 19 is connected with the oil pipe 18, the other end of the branch pipe 19 is rotatably connected with the rotating shaft through a rotary joint, the steel wire rope 5 is wound on the lubrication guiding wheel 21, the lubricating oil can be conveyed into the lubrication guiding wheel 21 under the action of the oil pump 16, and the lubricating oil seeps out from the oil outlet hole 5 to the steel wire rope 5; the second support 20 is provided with two groups of lubrication guide wheels 21 corresponding to the second support 20, the steel wire ropes 5 penetrate through gaps between the two groups of lubrication guide wheels 21 to be connected with the pulley lifting mechanism, and the two groups of lubrication guide wheels 21 are matched to oil the steel wire ropes 5 from two sides simultaneously.

Specifically, referring to fig. 3, in this embodiment, the pulley lifting mechanism includes a protecting shell 22, a pulley 23 and a hook 24, the pulley 23 is rotatably disposed in the protecting shell 22, two sets of pulleys 23 and steel wire ropes 5 are correspondingly disposed, the steel wire ropes 5 bypass the pulley 23 and are connected with the supporting base plate 4, and the hook 24 is disposed at the lower end of the protecting shell 22.

When the wire rope winding and unwinding device is particularly used, the winding and unwinding roller 8 is driven to rotate under the action of the winding and unwinding motor 7, the wire rope 5 sequentially drives the pulley lifting mechanism to lift through the winding and unwinding guide wheel 14 and the two groups of lubrication guide wheels 21, the displacement motor 9 drives the displacement screw 10 to rotate in the winding and unwinding process of the wire rope 5, the screw plate 12 is driven to horizontally move under the action of the guide slide rod 11, the screw plate 12 drives the winding and unwinding guide wheel 14 on the upper surface of the screw plate and the wire rope 5 to move, and the wire rope 5 is uniformly wound on the winding and unwinding roller 8 through rope holes; when it is necessary to apply the lubricating oil to the wire rope 5, only the oil pump 16 is started, a small amount of the lubricating oil is fed into the lubrication guiding wheel 21 through the oil pipe 18 and the branch pipe 19, and the lubricating oil is oozed out from the oil outlet hole on the lower surface and uniformly applied to the wire rope 5 as the lubrication guiding wheel 21 rotates.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (7)

1. The utility model provides a pulley overhead crane which characterized in that: including support, crossbeam, travelling car, supporting baseplate, receive and release mechanism, wire rope, lubrication guiding mechanism and pulley hoist mechanism, the support is equipped with two sets of in the lower surface both ends symmetry of crossbeam, the crossbeam is equipped with two sets of parallelly, travelling car removes to locate on the crossbeam, supporting baseplate's both ends link to each other with two sets of travelling car, receive and release mechanism locates on the supporting baseplate, lubrication guiding mechanism locates supporting baseplate's upper surface, lubrication guiding mechanism is walked around to wire rope's one end and is linked to each other with receive and release mechanism, the suspension hole has been seted up on the supporting baseplate, wire rope's the other end passes the suspension hole and bypasses pulley hoist mechanism and links to each other with supporting baseplate's lateral wall.

2. A sheave overhead crane according to claim 1, characterized in that: the winding and unwinding mechanisms comprise two supporting vertical plates, winding and unwinding assemblies and uniform wire assemblies, wherein the two supporting vertical plates are provided with two groups, the two groups of supporting vertical plates are correspondingly and vertically arranged on the supporting bottom plate, the winding and unwinding assemblies are rotationally arranged between the two groups of supporting vertical plates, the uniform wire assemblies are rotationally arranged between the two groups of supporting vertical plates, and the uniform wire assemblies are positioned above the winding and unwinding assemblies.

3. A trolley overhead crane according to claim 2, characterized in that: the winding and unwinding assembly comprises a winding and unwinding motor and winding and unwinding rollers, the winding and unwinding motor is fixedly arranged on a group of supporting vertical plates, the winding and unwinding rollers are rotationally arranged between the two groups of supporting vertical plates, one end of each winding and unwinding roller is connected with an output shaft of the winding and unwinding motor, one end of each wire rope is wound on each winding and unwinding roller, and two groups of wire ropes are wound at two ends of each winding and unwinding roller.

4. A trolley overhead crane according to claim 3, characterized in that: the even wire assembly includes displacement motor, displacement screw rod, direction slide bar and flitch, the outside of a set of support riser is located to the displacement motor is fixed, the displacement screw rod rotates to be located between two sets of support risers, the one end of displacement screw rod links to each other with the output shaft of displacement motor, the direction slide bar is located between two sets of support risers, receive and release roller is located the below in displacement screw rod and direction slide bar clearance, the displacement screw rod is bi-directional screw rod, the one end of flitch is slided and is located on the direction slide bar, the flitch is equipped with two sets of, two sets of the other end of flitch links to each other with the displacement screw rod through the screw respectively, two sets of flitch correspond the setting with two sets of wire ropes respectively, the upper surface middle part of flitch is equipped with support one, rotate on the support one and be equipped with receive and release guide wheel, the rope hole has been seted up at one side middle part of flitch, the rope hole is located receive and release guide wheel one side under, the rope hole is located receive and release roller's top, wire rope's free end passes the hole and walks around receive and release guide wheel and links to each other with lubricated guiding mechanism.

5. The sheave overhead crane of claim 4, wherein: the lubrication guiding mechanism is provided with two groups corresponding to the threaded plate, the lubrication guiding mechanism comprises an oil tank, an oil pump, a fixed block, an oil pipe, a branch pipe, a second support, a rotating shaft and a lubrication guiding wheel, the oil tank is fixedly arranged on the side wall of the supporting base plate, the oil pump is fixedly arranged on the side wall of the supporting base plate, an oil inlet of the oil pump is connected with the oil tank through a pipeline, the oil pipe is connected with an oil outlet of the oil pump, the oil pipe is connected with the side wall of the supporting base plate through the fixed block, the second support is fixedly arranged on the supporting base plate, the lubrication guiding wheel is rotationally arranged on the second support through the rotating shaft, the rotating shaft and the lubrication guiding wheel are of hollow structures, an oil outlet is formed in the outer surface of the lubrication guiding wheel, the size of the oil outlet is in millimeter level, one end of the branch pipe is connected with the oil pipe, the other end of the branch pipe is rotationally connected with the rotating shaft through a rotary joint, and the steel wire rope is wound on the lubrication guiding wheel.

6. The sheave overhead crane of claim 5, wherein: the second support is provided with two groups of lubrication guide wheels, the second support is correspondingly provided with two groups of lubrication guide wheels, and the steel wire rope penetrates through a gap between the two groups of lubrication guide wheels to be connected with the pulley lifting mechanism.

7. The sheave overhead crane of claim 6, wherein: the pulley lifting mechanism comprises a protective shell, pulleys and a lifting hook, wherein the pulleys are rotationally arranged in the protective shell, two groups of pulleys are correspondingly arranged with the steel wire ropes, the steel wire ropes bypass the pulleys and are connected with a supporting bottom plate, and the lifting hook is arranged at the lower end of the protective shell.