CN216472116U

CN216472116U - Cantilever type lifting turnover platform

Info

Publication number: CN216472116U
Application number: CN202122428222.1U
Authority: CN
Inventors: 朱功超; 马先磊; 石斌崇; 薛培培; 徐春辉
Original assignee: Loteem Beijing Rail Transit Technology Co Ltd
Current assignee: Loteem Beijing Rail Transit Technology Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-05-10
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses a cantilever type lifting turnover platform, which comprises a lifting support unit and a platform body; the lifting support unit is of an H-shaped frame structure, guide rails are arranged on two sides of the lifting support unit, guide rail connecting pieces are connected on the guide rails in a sliding mode, and one ends of the guide rail connecting pieces are hinged to the platform body; a lead screw is arranged at the front end of the lifting support unit, a lifter is sleeved on the lead screw and is electrically connected with a motor, and the lifter is fixedly connected with a guide rail connecting piece; the platform body includes the jib, and the one end of jib is rotated with lift support element's top and is connected, and the other end rotates with the middle part of platform body upper surface to be connected. The upper end of the guide rail connecting piece is provided with a limiting block, the lifting supporting unit is provided with an upper limiting plate and a lower limiting plate, and the limiting block is positioned between the upper limiting plate and the lower limiting plate. The cantilever type lifting turnover platform provided by the utility model can be attached to the front end of a motor train unit in a short distance, and is convenient to store and transport.

Description

Cantilever type lifting turnover platform

Technical Field

The utility model relates to the technical field of bullet train maintenance, in particular to a cantilever type lifting turnover platform.

Background

The motor train unit is positioned on a stop track bridge (the track bridge is 900 mm high) to be repaired, and two or three layers of platforms are respectively arranged on two sides of the track bridge, so that personnel can conveniently enter the train and overhaul the train side and the train top. Whereas the headstock maintenance is platform-free. The conventional crank arm lifting vehicle is used for assisting in maintenance and conveying people to the head part, but the crank arm is troublesome to operate, so that the requirement on an operator is high, the field space is limited, and the operation difficulty is increased. In addition, people need to stand in the crank arm basket in advance and then slowly approach the vehicle body, and certain potential safety hazards exist on the people. Secondly, the vision of people is limited when leaning on the car, and the people do not lean on the car well. The operator is far from the operation site, and the operation is difficult. On-site three-level platforms and vehicle side space are limited.

The defects and shortcomings of the prior art are as follows:

1. the equipment is expensive, the operation is troublesome, and professional personnel is required to maintain the duty;

2. the field space is small, and the telescopic operation of the crank arm is troublesome;

3. the safety of people who lift with people has hidden danger;

4. the operation part can not be closed, and the operation is troublesome and inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the background art, the utility model provides the following technical scheme:

a cantilever type lifting and overturning platform comprises a lifting support unit and a platform body;

the lifting support unit is of an H-shaped frame structure, guide rails are arranged on two sides of the lifting support unit, guide rail connecting pieces are connected on the guide rails in a sliding mode, and one ends of the guide rail connecting pieces are hinged with the platform body;

a lead screw is arranged at the front end of the lifting support unit, a lifter is sleeved on the lead screw and is electrically connected with a motor, and the lifter is fixedly connected with a guide rail connecting piece;

the platform body includes the jib, and the one end of jib rotates with lift support unit's top to be connected, and the other end rotates with the middle part of platform body upper surface to be connected.

Further, the upper end of guide rail connecting piece installs the stopper, installs limiting plate and lower limiting plate on the lift support unit, the stopper is located between limiting plate and the lower limiting plate.

Further, the lifting support unit comprises a first stand column, a second stand column, a first cross beam and a second cross beam, the first stand column and the second stand column are arranged in parallel, the first cross beam and the second cross beam are arranged in parallel, the first cross beam is located on the upper portion of the second cross beam, the first stand column is welded to one end of the first cross beam and one end of the second cross beam, and the second stand column is welded to the other end of the first cross beam and the second cross beam.

Furthermore, lift the support unit still includes two flexible stands and ball, and two flexible stands are located ball's both sides respectively, and two flexible stands imbed the bottom of first stand and second stand respectively, and ball's top and the bottom fixed connection of second crossbeam.

Furthermore, first sliders are installed on the inner walls of the first stand column and the second stand column, and second sliders are installed on the upper portions of the two telescopic stand columns in the circumferential direction.

Further, the upper parts of the first upright post and the second upright post are provided with armrests.

Furthermore, a mounting seat is arranged on the first cross beam and used for mounting the extension ladder.

Furthermore, the bottoms of the two telescopic stand columns and the ball screw are respectively provided with a fixed seat for fixing the cantilever type lifting and overturning platform on the ground or the moving trolley.

Further, the upwards folding guardrail of circumference installation of platform body.

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

(1) the cantilever type lifting turnover platform provided by the utility model has the advantages that the platform body can be folded, and the storage and the transportation are convenient;

(2) the cantilever type lifting turnover platform provided by the utility model has a small structure, can be suitable for lifting in a small space at the side of a vehicle, and the lifting of the platform body is stable;

(3) the cantilever type lifting turnover platform provided by the utility model can be attached to the front end of a motor train unit to be relatively close to form a stable operation platform, so that the operation is convenient;

(4) according to the cantilever type lifting turnover platform provided by the utility model, after the platform is lifted in place, an operator can climb onto the operation table top from the left telescopic ladder without lifting, so that potential safety hazards are avoided.

Drawings

FIG. 1 is a schematic structural view of a cantilever lift turn platform according to the present invention;

FIG. 2 is a schematic structural view of the elevating support unit of the present invention;

FIG. 3 is a sectional view taken along the A-A plane of the elevating support unit of the present invention;

FIG. 4 is a schematic view of the connection of the motor, the lead screw and the elevator of the present invention;

FIG. 5 is a schematic structural diagram of a second slider according to the present invention.

In the figure: 1. a lifting support unit; 13. a first upright post; 14. a second upright post; 15. a first cross member; 16. a second cross member; 17. a first slider; 18. a handrail; 19. a mounting seat; 2. a platform body; 21. folding the guard bar; 3. a guide rail connector; 31. a telescopic upright post; 32. a ball screw; 33. a second slider; 34. a fixed seat; 41. a boom; 42. a guide rail; 44. a motor; 45. a lead screw; 46. an elevator; 47. and a limiting block.

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.

Example 1

The utility model provides a cantilever type lifting turnover platform, which comprises a lifting support unit 1 and a platform body 2 as shown in figures 1-5.

The lifting support unit 1 is of an H-shaped frame structure, guide rails 42 are mounted on two sides of the lifting support unit 1, the guide rails 42 are connected with guide rail connecting pieces 3 in a sliding mode, and one ends of the guide rail connecting pieces 3 are hinged to the platform body 2. Exemplarily, the number of the guide rail connectors 3 is 2, the bottom of the guide rail connector 3 is provided with a slider, the slider is embedded in the guide rail and can slide along the guide rail, the number of the elevators 46 is 2, and the 2 guide rail connectors are respectively and fixedly connected with the 2 elevators 46.

The front end of the lifting supporting unit 1 is provided with a lead screw 45, the lead screw 45 is sleeved with a lifter 46, the lifter 46 is electrically connected with the motor 44, and the lifter 46 is fixedly connected with the guide rail connecting piece 3. The upper end of the screw 45 is fixed to the support unit 1, and the screw 45 is disposed parallel to the guide rail 42. Exemplarily, the motor 44 is electrically connected with 2 elevators 46, drives the 2 elevators 46 to move synchronously along the lead screw 45, the elevators 46 are in threaded connection with the lead screw 45, and the 2 elevators 46 are respectively sleeved on the 2 lead screws 45.

The platform body 2 comprises a suspender 41, one end of the suspender 41 is rotatably connected with the top of the lifting support unit 1, and the other end is rotatably connected with the middle part of the upper surface of the platform body 2. Illustratively, the rotation connection mode is hinged, the number of the suspension rods 41 is 2, two sides of the lifting support unit 1 are respectively connected with two sides of the platform body 2, and the 2 suspension rods 41 are arranged in parallel.

The stopper 47 is mounted on the upper end of the rail connector 3. An upper limiting plate and a lower limiting plate are installed on the lifting supporting unit 1, and the limiting block 47 is located between the upper limiting plate and the lower limiting plate.

Specifically, lift supporting unit 1 includes first stand 13, second stand 14, first crossbeam 15 and second crossbeam 16, and first stand 13 and second stand 14 parallel arrangement, first crossbeam 15 and second crossbeam 16 parallel arrangement, and first crossbeam 15 is located the upper portion of second crossbeam 16, and first stand 13 is all welded to the one end of first crossbeam 15 and second crossbeam 16, and second stand 14 is all welded to the other end.

Specifically, lift supporting unit 1 includes two flexible stands 31 and ball 32, and two flexible stands 31 are located the both sides of ball 32 respectively, and two flexible stands 31 imbed the bottom of first stand 13 and second stand 14 respectively, and the top of ball 32 and the bottom fixed connection of second crossbeam 16.

In order to facilitate the telescopic upright column 31 to freely extend and retract along the first upright column 13 or the second upright column 14, the inner walls of the first upright column 13 and the second upright column 14 are respectively provided with a first sliding block 17, the circumferential directions of the upper parts of the two telescopic upright columns 31 are respectively provided with a second sliding block 33, and for example, the first sliding block 17 and the second sliding block 33 are both made of polytetrafluoroethylene.

In order to ensure the strength and portability of the cantilever type lifting turnover platform, the lifting support unit 1 and the telescopic upright column 31 are both made of aluminum alloy rectangular pipes, the platform body 2 is formed by combining aluminum profiles, and the whole platform surface is lighter; the hanger bar 41 is formed by processing a steel material and has sufficient strength.

Specifically, the handrails 18 are mounted on the upper portions of the first upright column 13 and the second upright column 14, and the handrails 18 and the platform body 2 are respectively located on two sides of the supporting unit 1.

And the first cross beam 15 is provided with a mounting seat 19 for mounting the extension ladder.

Specifically, the bottoms of the two telescopic columns 31 and the ball screw 32 are respectively provided with a fixing seat 34 for fixing the cantilever type lifting and overturning platform on the ground or on a movable trolley.

Specifically, the platform body 2 is circumferentially provided with an upward folding guardrail 21.

Example 2

An operation method of a cantilever type lifting turnover platform specifically comprises the following steps:

the method comprises the following steps: moving the cantilever type lifting and overturning platform to the head of the motor train unit, and fixing the cantilever type lifting and overturning platform on the ground or a moving trolley through a fixed seat 34;

step two: adjusting the ball screw 32 to raise the lifting support unit 2 to a suitable height;

step three: the motor 44 is driven, the motor 44 controls the lifter 46 to move upwards along the screw 45, the lifter 46 drives the rail connecting piece to ascend along the guide rail 42, and the rail connecting piece 3 drives the inner side of the platform body 2 to move upwards until the platform body 2 is in a horizontal position;

step four: the operating personnel walks to platform body 2 along the extension ladder, overhauls the maintenance to EMUs head.

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

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A cantilever type lifting and overturning platform is characterized by comprising a lifting support unit (1) and a platform body (2);

the lifting support unit (1) is of an H-shaped frame structure, guide rails (42) are arranged on two sides of the lifting support unit (1), the guide rails (42) are connected with guide rail connecting pieces (3) in a sliding mode, and one ends of the guide rail connecting pieces (3) are hinged to the platform body (2);

a lead screw (45) is installed at the front end of the lifting supporting unit (1), a lifter (46) is sleeved on the lead screw (45), the lifter (46) is electrically connected with a motor (44), and the lifter (46) is fixedly connected with the guide rail connecting piece (3);

the platform body (2) comprises a suspender (41), one end of the suspender (41) is rotatably connected with the top of the lifting supporting unit (1), and the other end of the suspender is rotatably connected with the middle part of the upper surface of the platform body (2).

2. The cantilever type lifting turnover platform of claim 1, wherein the upper end of the guide rail connecting piece is provided with a limiting block (47), the lifting support unit (1) is provided with an upper limiting plate and a lower limiting plate, and the limiting block (47) is positioned between the upper limiting plate and the lower limiting plate.

3. The cantilever type lifting turnover platform of claim 1, wherein the lifting support unit (1) comprises a first upright column (13), a second upright column (14), a first beam (15) and a second beam (16), the first upright column (13) and the second upright column (14) are arranged in parallel, the first beam (15) and the second beam (16) are arranged in parallel, the first beam (15) is positioned at the upper part of the second beam (16), one end of each of the first beam (15) and the second beam (16) is welded with the first upright column (13), and the other end of each of the first beam (15) and the second beam (16) is welded with the second upright column (14).

4. The cantilever type lifting and overturning platform according to claim 3, wherein the lifting and supporting unit (1) further comprises two telescopic columns (31) and a ball screw (32), the two telescopic columns (31) are respectively located at two sides of the ball screw (32), the two telescopic columns (31) are respectively embedded into the bottoms of the first column (13) and the second column (14), and the top of the ball screw (32) is fixedly connected with the bottom of the second beam (16).

5. The cantilever type lifting turnover platform of claim 4, wherein the inner walls of the first upright column (13) and the second upright column (14) are provided with first sliding blocks (17), and the upper parts of the two telescopic upright columns (31) are provided with second sliding blocks (33) in the circumferential direction.

6. A cantilevered lift tilt platform according to claim 3, wherein the upper portions of the first (13) and second (14) uprights are each fitted with a handrail (18).

7. A cantilevered lift tilt platform according to claim 3, wherein the first beam (15) is provided with mounting brackets (19) for mounting a telescopic ladder.

8. The cantilever type lifting and overturning platform according to claim 4, wherein the two telescopic columns (31) and the ball screw (32) are provided at the bottom with fixing seats (34) for fixing the cantilever type lifting and overturning platform on the ground or on a moving trolley.

9. A cantilevered elevating and tipping platform according to any of claims 1-8, characterized in that the platform body (2) is peripherally fitted with upwardly folded guardrails (21).