CN219384660U

CN219384660U - Lifting guide device

Info

Publication number: CN219384660U
Application number: CN202223274363.3U
Authority: CN
Inventors: 何颖祺; 苏获霖; 何庭辉; 袁东青
Original assignee: Guangzhou City University of Technology
Current assignee: Guangzhou City University of Technology
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-07-21
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a lifting guide device, which comprises a bottom frame, supporting frames and a lifting frame, wherein the supporting frames are respectively arranged on the front side and the rear side of the bottom frame, each supporting frame comprises a cross beam and two upright posts, the two upright posts are parallel to each other, the cross beams are arranged at the upper ends of the two upright posts, the lifting frame is positioned between the two supporting frames, a roller sliding sleeve is arranged on one upright post of the supporting frames, the roller sliding sleeve is fixed on the lifting frame, a U-shaped sliding rail is arranged on the other upright post of the supporting frame, a U-shaped post is arranged on the lifting frame, a guide rail protruding out of the U-shaped post is fixed in the U-shaped post, and the guide rail is embedded in the U-shaped sliding rail in a sliding way; the roller sliding sleeves on the two support frames are symmetrically arranged relative to the center of the underframe, and the U-shaped sliding rails on the two support frames are symmetrically arranged relative to the center of the underframe. By utilizing the structure of the utility model, the roller sliding sleeve can play a certain role in protecting the roller sliding sleeve, the guiding stability is good, and the requirement on sliding guiding is low.

Description

Lifting guide device

Technical Field

The present utility model relates to a lifting guide device.

Background

In the lifting process of an object, a guide device is generally arranged for enabling the object to move more stably, the existing guide device mainly comprises a sliding guide device and a rolling guide device, the sliding guide device is generally realized by matching a sliding block and a sliding rail, the structure has high guide stability, high friction force and easy abrasion, and the structure is similar to the guide post and guide sleeve structure; the guide device is usually realized by matching a roller with a chute capable of accommodating the roller, and the structure has small friction force, but the contact is usually point contact or linear contact, and the stability and reliability of the guide device are slightly poorer.

Disclosure of Invention

The utility model aims to provide a lifting guide device which has the advantages that the roller sliding sleeve can be protected to a certain extent by utilizing the structure of the lifting guide device, the guide stability is good, and the requirement on sliding guide is low.

In order to achieve the aim, the lifting guide device comprises a bottom frame, support frames and a lifting frame, wherein the support frames are respectively arranged on the front side and the rear side of the bottom frame, each support frame comprises a cross beam and two upright posts, the two upright posts are parallel to each other, the cross beams are arranged at the upper ends of the two upright posts, the lifting frame is positioned between the two support frames, a roller sliding sleeve is arranged on one upright post of the support frames, the roller sliding sleeve is fixed on the lifting frame, a U-shaped sliding rail is arranged on the other upright post of the support frame, a U-shaped post is arranged on the lifting frame, a guide rail protruding out of the U-shaped post is fixed in the U-shaped post, and the guide rail is embedded into the U-shaped sliding rail in a sliding manner; the roller sliding sleeves on the two support frames are symmetrically arranged relative to the center of the underframe, and the U-shaped sliding rails on the two support frames are symmetrically arranged relative to the center of the underframe.

Above-mentioned structure combines rolling friction direction and sliding friction guide structure, when the crane at the lift in-process, if the lift orbit skew appears, then the cooperation between U type slide rail and the guide rail can produce great restriction force, is difficult to harm the gyro wheel sliding sleeve like this, and combines the back with both, and frictional force can be between rolling friction and sliding friction, consequently, lets the direction more stable, accurate under the circumstances of comprehensively considering frictional force, moreover can better protection gyro wheel sliding sleeve. Because the crane is located between two support frames, the U-shaped slide rail is located in the inboard of support frames, and the guide rail is also located in the inboard of support frames, then under the restriction effect of two support frames, through above-mentioned structure, then need not set up extra front and back limit structure to U-shaped slide rail and guide rail, let the structure of slip direction simpler.

Further, two roller sliding sleeves which are arranged up and down are arranged on one upright post of each supporting frame. In this way the accuracy of the guiding is further improved.

Further, the roller sliding sleeve comprises a sliding sleeve and a roller shaft, the sliding sleeve is fixed on the lifting frame, and the front side, the rear side, the left side and the rear side in the sliding sleeve respectively penetrate through the roller shaft. The roller sliding sleeve is simple in structure.

Further, the sliding sleeve include preceding curb plate, posterior lateral plate, left side board and posterior lateral plate, be equipped with first card respectively at the both ends of preceding curb plate and put the portion, be equipped with the second respectively at the both ends of posterior lateral plate and put the portion card and put the recess that the portion card was put with first card respectively in the front end of left side board and right side board, be equipped with in the middle part of left side board and right side board and supply second card to put the portion male slot, first card is put the portion card and is put in the recess, second card is put the portion and is inserted in the slot, forms the mounting groove between the rear end of left side board and right side board. This structure, through the cooperation of first card portion of putting with the recess, the cooperation of second card portion of putting with the slot is simple, convenient when the installation with dismantle the sliding sleeve, has formed the mounting groove simultaneously at the rear end, is convenient for be connected fixedly with the crane.

Further, the roller shaft comprises a screw rod, a nut and rollers, the screw rod penetrates through the sliding sleeve, one end of the screw rod is connected with the nut in a threaded mode, and more than two rollers are rotatably arranged in the sliding sleeve on the screw rod. This structure is fixed the sliding sleeve through screw rod and nut for the installation and the dismantlement of sliding sleeve are simpler.

Further, a limit groove corresponding to the position of the roller is formed in the side wall of the sliding sleeve, and one side of the roller extends into the limit groove. This structure can carry out better spacing to the gyro wheel through spacing groove cooperation screw rod.

Drawings

Fig. 1 is a perspective view of a lifting guide.

Fig. 2 is an exploded view of the elevation guide.

Fig. 3 is a perspective view of the roller sleeve.

Fig. 4 is a perspective view of another view of the roller sleeve.

Fig. 5 is an exploded view of the roller sleeve.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

As shown in fig. 1 and 2, the elevation guide includes a base frame 1, a support frame 2, and an elevation frame 3. The front side and the rear side of the underframe 1 are respectively provided with a support frame 2 symmetrical with the center line P of the underframe, the support frame 2 comprises a cross beam 22 and two upright posts 21, the two upright posts 21 are parallel to each other and are arranged along the left-right direction, the upper ends of the two upright posts are provided with the cross beam 22, and the lifting frame 3 is positioned between the two support frames.

A roller sliding sleeve 4 is arranged on one upright post of the support frame 2, in the embodiment, two roller sliding sleeves 4 which are arranged up and down are arranged on one upright post of the support frame 2, the roller sliding sleeve 4 is fixed on the lifting frame 3, a U-shaped sliding rail 51 is arranged on the other upright post of the support frame 2, a U-shaped column 52 is arranged on the lifting frame 3, a guide rail 53 protruding out of the U-shaped column is fixed in the U-shaped column, and the guide rail 53 is embedded into the U-shaped sliding rail 51 in a sliding way; the roller sliding sleeves 4 on the two support frames are symmetrically arranged relative to the central line P of the center of the underframe, and the U-shaped sliding rails on the two support frames are symmetrically arranged relative to the central line P of the center of the underframe.

As shown in fig. 3 to 5, the roller sliding sleeve 4 includes a sliding sleeve 41 and a roller shaft 42.

The sliding sleeve 41 includes a front side plate 411, a rear side plate 412, a left side plate 413 and a rear side plate 414, wherein the two ends of the front side plate 411 are respectively provided with a first clamping portion 4111, the two ends of the rear side plate 412 are respectively provided with a second clamping portion 4121, the front ends of the left side plate 413 and the right side plate 414 are respectively provided with a groove 4131 clamped with the first clamping portion 4111, and the two ends of the groove 4131 are respectively provided with a first avoiding hole, so that after the first clamping portion 4111 is inserted into the groove 4131, the two ends of the groove are not subjected to top placement, the middle parts of the left side plate 413 and the right side plate 414 are provided with slots 4132 for inserting the second clamping portions, and the corners of the two ends of the slots 4132 are provided with second avoiding holes, so that after the second clamping portions are inserted into the slots, the second clamping portions cannot be in a top placement. The mounting groove 43 is formed between the rear ends of the left side plate 413 and the right side plate 414, and the pressing plates 40 are respectively fixed on the inner side of the left side plate and the inner side of the right side plate, so that the roller sliding sleeve can be better mounted on the supporting column of the lifting frame through the mounting groove and the pressing plates.

Roller shafts 42 are respectively penetrated between the front side plate 411 and the rear side plate 412 at both ends, roller shafts 42 are respectively penetrated between the left side plate 413 and the right side plate 414 at both ends, and guide holes 45 are formed between the roller shafts at the front side, the rear side, the left side and the right side, wherein one of the columns penetrates the guide holes 45.

The roller shaft 42 comprises a screw 421, a nut (not shown in the figure) and a roller 422, the screw 421 passes through the sliding sleeve, the nut is connected to one end of the screw 421 through threads, so that the screw 421 can be prevented from falling off, more than two rollers 422 are rotatably arranged in the sliding sleeve through bearings on the screw 421, a limit groove 46 is formed in the inner wall of the sliding sleeve, one side of the roller 422 extends into the limit groove 46, and then the roller can be limited to a certain extent under the action of the screw and the limit groove, but the rotation of the roller is not limited. Adopt screw rod and nut and gyro wheel to constitute the roller shaft, its simple structure cooperates the structure of above-mentioned sliding sleeve moreover, fixes at the preceding curb plate of sliding sleeve, posterior lateral plate, left side board and right side board, dismantles and simple to operate, swift to the sliding sleeve.

In this embodiment, the lifting frame may be driven by a lifting cylinder, or may be driven by a synchronous belt or a chain, specifically: as shown in fig. 1 and 2, a driving device 6 is provided on the chassis 1, and a driven sprocket device 7 is provided on the cross member. The driving device 6 comprises a motor 61, a first gear 62, a second gear 63, a driving shaft 64 and a driving sprocket 65, wherein the motor 61 is arranged on the chassis 1, the first gear 62 is arranged on an output shaft of the motor, the second gear 63 is arranged on the driving shaft 64, the first gear is meshed with the second gear, the driving shaft 64 is arranged on the chassis 1 through a bearing and a bearing seat, and the driving sprocket 65 is respectively arranged at two ends of the driving shaft 64. The driven sprocket device 7 comprises a bracket 71 arranged on the beam and a driven sprocket 72 arranged on the bracket 71, wherein the driving sprocket and the driven sprocket are corresponding in the up-down direction, a chain is sleeved between the driving sprocket and the driven sprocket which are corresponding in the up-down direction, the chain is fixed on the lifting frame 3, the motor drives the first gear to rotate through starting the motor, the first gear drives the driving shaft to rotate through the second gear, the driving shaft drives the driving sprocket to rotate, the driving sprocket drives the chain to move, and the chain drives the lifting frame to lift.

According to the structure of the embodiment, the rolling friction guiding structure and the sliding friction guiding structure are combined, when the lifting frame is in the lifting process, if the lifting track is deviated, the U-shaped sliding rail and the guide rail are matched to generate larger limiting force, so that the roller sliding sleeve is not easy to damage, and after the U-shaped sliding rail and the guide rail are combined, the friction force is between the rolling friction and the sliding friction, so that the guiding is more stable and accurate under the condition of comprehensively considering the friction force, and the roller sliding sleeve can be better protected. Because the crane is located between two support frames, the U-shaped slide rail is located in the inboard of support frames, and the guide rail is also located in the inboard of support frames, then under the restriction effect of two support frames, through above-mentioned structure, then need not set up extra front and back limit structure to U-shaped slide rail and guide rail, let the structure of slip direction simpler.

Claims

1. The utility model provides a lift guider, includes chassis, support frame and crane, is equipped with the support frame respectively in the front and back both sides of chassis, and the support frame includes crossbeam and two stands, and two stands are parallel to each other, are equipped with the crossbeam in the upper end of two stands, and the crane is located between two support frames, its characterized in that: a roller sliding sleeve is arranged on one upright post of the support frame, the roller sliding sleeve is fixed on the lifting frame, a U-shaped sliding rail is arranged on the other upright post of the support frame, a U-shaped column is arranged on the lifting frame, a guide rail protruding out of the U-shaped column is fixed in the U-shaped column, and the guide rail is embedded into the U-shaped sliding rail in a sliding way; the roller sliding sleeves on the two support frames are symmetrically arranged relative to the center of the underframe, and the U-shaped sliding rails on the two support frames are symmetrically arranged relative to the center of the underframe.

2. A lifting guide as claimed in claim 1, wherein: two roller sliding sleeves which are arranged up and down are arranged on one upright post of each supporting frame.

3. A lifting guide as claimed in claim 1, wherein: the roller sliding sleeve comprises a sliding sleeve and a roller shaft, the sliding sleeve is fixed on the lifting frame, and the front side, the rear side, the left side and the rear side in the sliding sleeve respectively penetrate through the roller shaft.

4. A lifting guide as claimed in claim 3, wherein: the sliding sleeve comprises a front side plate, a rear side plate, a left side plate and a rear side plate, wherein first clamping parts are respectively arranged at two ends of the front side plate, second clamping parts are respectively arranged at two ends of the rear side plate, grooves which are clamped with the first clamping parts are respectively arranged at the front ends of the left side plate and the right side plate, slots for the second clamping parts to be inserted are formed in the middle parts of the left side plate and the right side plate, the first clamping parts are clamped in the grooves, the second clamping parts are inserted into the slots, and mounting grooves are formed between the rear ends of the left side plate and the right side plate.

5. A lifting guide as claimed in claim 4, wherein: the roller shaft comprises a screw rod, a nut and rollers, wherein the screw rod penetrates through the sliding sleeve, one end of the screw rod is connected with the nut in a threaded manner, and more than two rollers are rotatably arranged in the sliding sleeve on the screw rod.

6. A lifting guide as claimed in claim 5, wherein: and a limit groove corresponding to the position of the roller is formed in the side wall of the sliding sleeve, and one side of the roller extends into the limit groove.