Brake drum lifting device

Abstract

The utility model discloses a brake drum lifting device which comprises a rack, a first driving unit, a vertical guide rail, a lifting assembly and at least two limiting assemblies. The key points of the utility model are as follows: a lifting assembly comprises a lifting frame connected to a vertical guide rail in a sliding manner, a second driving unit fixed on the lifting frame, and two mounting seats respectively fixed on two opposite sides of the lifting frame, the lifting frame is connected with a first driving unit, and a plurality of carrier rollers are arranged between the two mounting seats; the at least two limiting assemblies are located above and below the lifting frame respectively, each limiting assembly comprises a limiting seat fixed to the rack, each limiting seat is connected with a limiting block, and the two limiting blocks are located above and below the lifting frame respectively so as to limit the lifting frame in the vertical direction, so that the movement stroke of the lifting frame is controlled; the lifting assembly is prevented from colliding with the rack, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a brake drum lifting device. Background Art

[0002] Brake drums are typically transported on production lines using a lifting mechanism. Existing lifting mechanisms consist of a frame, a cylinder mounted on the frame, two vertical guide rails, and a lifting frame. The two guide rails are arranged parallel and extend vertically. The lifting frame is slidably connected to the two guide rails and connected to the cylinder, which is used to carry the brake drum. When transporting the brake drum, the lifting frame supports the brake drum, and the cylinder then drives the lifting frame to slide up and down, thereby moving the brake drum up and down. However, this lifting mechanism is difficult to control the travel, posing a safety risk. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a brake drum lifting device which controls the travel of the lifting frame to improve safety by arranging a limit block above and below the lifting frame.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] The brake drum lifting device comprises a frame and a first drive unit connected to the frame, a vertical guide rail, a lifting assembly and at least two limit assemblies;

[0006] The vertical guide rail is located on one side of the driving unit and is fixed to the frame, and the vertical guide rail extends upward;

[0007] The lifting assembly is slidably connected to the vertical guide rails, and includes a lifting frame located above the frame and slidably connected to the vertical guide rails, a second drive unit fixed to the lifting frame, and two mounting seats respectively fixed to opposite sides of the lifting frame, the lifting frame is connected to the first drive unit, a plurality of rollers are provided between the two mounting seats, a first end of each of the rollers is rotatably connected to one of the mounting seats, and a second end of each of the rollers is provided with a sprocket, the sprocket is rotatably connected to another of the mounting seats, and the plurality of sprockets are connected to the second drive unit via a transmission chain;

[0008] The at least two limit assemblies are respectively located above and below the lifting frame, each of the limit assemblies includes a limit seat fixed on the frame, each of the limit seats is connected to a limit block, and the two limit blocks are respectively located above and below the lifting frame.

[0009] Furthermore, the limit seat located above the lifting frame is an upper limit seat, and the upper limit seat is connected to an upper adjusting screw. The upper adjusting screw is located above the lifting frame and the bottom surface of the upper adjusting screw is connected to the limit block.

[0010] Furthermore, the upper limit seat extends in a direction close to the lifting frame to form a fixed block, and the fixed block is located above the lifting frame and is connected to the upper adjusting screw.

[0011] Furthermore, a fixing block is fixed to the upper limit seat close to the outer side wall of the lifting frame. The fixing block extends to the top of the lifting frame in a direction close to the lifting frame and is connected to the upper adjusting screw.

[0012] Furthermore, the limit seat located below the lifting frame is a lower limit seat, and the lower limit seat is connected to a lower adjusting screw. The lower adjusting screw is located below the lifting frame and the top surface of the lower adjusting screw is connected to another limit block.

[0013] Furthermore, the rack includes a vertical bracket fixed to the top surface of the rack, the vertical guide rail is fixed on one side of the vertical bracket, and the two limit seats are respectively located above and below the vertical guide rail.

[0014] Furthermore, the two limiting assemblies respectively located above and below the lifting frame form a group, and there are multiple groups of limiting assemblies. One group of limiting assemblies is provided on both sides of each end of the lifting frame. The first driving unit is a cylinder, and the second driving unit is a motor.

[0015] The brake drum lifting device of the present invention is provided with at least one limit assembly above and below the lifting frame, each limit assembly includes a limit seat fixed on the frame, each limit seat is connected to a limit block, and the two limit blocks are respectively located above and below the lifting frame to limit the lifting frame in the upper and lower directions, thereby controlling the movement stroke of the lifting frame, preventing the lifting assembly from colliding with the frame, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of a brake drum lifting device according to an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A magnified view of the local area A;

[0018] Figure 3 for Figure 1 A magnified view of the local area B. DETAILED DESCRIPTION

[0019] Below, in conjunction with the accompanying drawings and specific embodiments, the utility model is further described:

[0020] like Figures 1 to 3As shown, an embodiment of the present invention provides a brake drum lifting device for lifting a brake drum 100 of a heavy vehicle, comprising a frame 1 and a first drive unit 2 connected to the frame 1 , a vertical guide rail 3 , a lifting assembly 4 and at least two limit assemblies 5 .

[0021] The frame 1 includes a vertical support 11 fixed to the top surface of the frame 1. The vertical support 11 extends upward. The first drive unit 2 is a pneumatic cylinder. In this embodiment, the first drive unit 2 is a five-rod drive cylinder. A vertical guide rail 3 is located on one side of the drive unit and fixed to the frame 1. Specifically, the vertical guide rail 3 is fixed to one side of the vertical support 11 and extends upward. There are two vertical guide rails 3 arranged in parallel, and the two vertical guide rails 3 are located on opposite sides of the first drive unit 2.

[0022] The lifting assembly 4 is slidably connected to the vertical guide rail 3 and comprises a lifting frame 41 positioned above the frame 1 and slidably connected to the vertical guide rail 3, a second drive unit 42 secured to the lifting frame 41, and two mounting brackets 43 secured to opposite sides of the lifting frame 41. The lifting frame 41 is connected to the first drive unit 2 and is driven by the first drive unit 2 to slide up and down. Specifically, a slider 12 is welded to the outer wall of the lifting frame 41, adjacent to the guide rail. The slide groove of the slider 12 slidably engages with the vertical guide rail 3. The two mounting seats 43 are fixed to the top surface of the lifting frame 41, and a plurality of rollers 44 are provided between the two mounting seats 43. The plurality of rollers 44 are evenly arranged along the width direction of the brake drum lifting device and are rotatably connected to the two mounting seats 43 through roller shafts (not shown). Specifically, the first end of each roller 44 is rotatably connected to a mounting seat 43 through one end of the roller shaft, and a sprocket 45 is provided at the second end of each roller 44. The sprocket 45 is rotatably connected to the other mounting seat 43 through the other end of the roller shaft. The plurality of sprockets 45 are connected to the second drive unit 42 through a transmission chain 46, so that the plurality of rollers 44 roll under the drive of the second drive unit 42 through the sprocket 45, wherein the second drive unit 42 is a motor, and the motor is located below the two mounting seats 43.

[0023] At least two limiting assemblies 5 are located above and below the lifting frame 41, respectively. Each limiting assembly 5 includes a limiting seat 51 fixed to the frame 1. Specifically, the two limiting seats 51 are located above and below the vertical guide rails 3, respectively. Each limiting seat 51 is connected to a limiting block 52, which is located above and below the lifting frame 41. The limiting blocks 52 limit the lifting frame 41 in the vertical direction, thereby controlling the movement of the lifting frame 41, preventing the lifting assembly 4 from colliding with the frame 1, and improving safety.

[0024] The limit seat 51 located above the lifting frame 41 is the upper limit seat. It is screwed to the vertical bracket 11 and connected to an upper adjustment screw 53. The upper adjustment screw 53 is located above the lifting frame 41 and has a limit block 52 welded to its bottom surface. In this embodiment, for ease of manufacturing, a fixing block 511 is welded to the outer wall of the upper limit seat near the lifting frame 41. The fixing block 511 extends from the upper end of the lifting frame 41 toward the upper end of the lifting frame 41 and is connected to the upper adjustment screw 53. Of course, in other embodiments, the fixing block 511 can also be integrally formed with the upper limit seat. Specifically, the upper limit seat extends from the upper end of the lifting frame 41 toward the upper end of the lifting frame 41 to form a fixing block 511. The fixing block 511 is located above the lifting frame 41 and is connected to the upper adjustment screw 53. The provision of the upper adjustment screw 53 allows the movement of the lifting frame 41 to be flexibly adjusted according to actual needs.

[0025] The lower limit seat 51 located below the lifting frame 41 is screwed to the top surface of the frame 1 and is connected to a lower adjustment screw 54. This lower adjustment screw 54 is located below the lifting frame 41 and has another cylindrical limit block 52 welded to its top surface. By providing the lower adjustment screw 54, the range of motion of the lifting frame 41 can be flexibly adjusted according to actual needs.

[0026] In order to further improve reliability and safety, in this embodiment, multiple groups of limit assemblies 5 are provided. Specifically, two limit assemblies 5 located above and below the lifting frame 41 respectively form a group. There are multiple groups of limit assemblies 5, and a group of limit assemblies 5 is provided on both sides of each end of the lifting frame 41.

[0027] The brake drum lifting device of the present invention is provided with at least one limit assembly above and below the lifting frame, each limit assembly includes a limit seat fixed on the frame, each limit seat is connected to a limit block, and the two limit blocks are respectively located above and below the lifting frame to limit the lifting frame in the upper and lower directions, thereby controlling the movement stroke of the lifting frame, preventing the lifting assembly from colliding with the frame, and improving safety.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Brake drum lifting device, characterized in that: The machine comprises a frame and a first drive unit, a vertical guide rail, a lifting assembly and at least two limit assemblies connected to the frame; The vertical guide rail is located on one side of the driving unit and is fixed to the frame, and the vertical guide rail extends upward; The lifting assembly is slidably connected to the vertical guide rails, and includes a lifting frame located above the frame and slidably connected to the vertical guide rails, a second drive unit fixed to the lifting frame, and two mounting seats respectively fixed to opposite sides of the lifting frame, the lifting frame is connected to the first drive unit, a plurality of rollers are provided between the two mounting seats, a first end of each of the rollers is rotatably connected to one of the mounting seats, and a second end of each of the rollers is provided with a sprocket, the sprocket is rotatably connected to another of the mounting seats, and the plurality of sprockets are connected to the second drive unit via a transmission chain; The at least two limit assemblies are respectively located above and below the lifting frame, each of the limit assemblies includes a limit seat fixed on the frame, each of the limit seats is connected to a limit block, and the two limit blocks are respectively located above and below the lifting frame.

2. The brake drum lifting device according to claim 1, characterized in that: The limit seat located above the lifting frame is an upper limit seat, and the upper limit seat is connected with an upper adjusting screw. The upper adjusting screw is located above the lifting frame and the bottom surface of the upper adjusting screw is connected with the limit block.

3. The brake drum lifting device according to claim 2, characterized in that: The upper limit seat extends in a direction close to the lifting frame to form a fixed block. The fixed block is located above the lifting frame and is connected to the upper adjusting screw.

4. The brake drum lifting device according to claim 2, wherein: A fixing block is fixed to the upper limit seat close to the outer side wall of the lifting frame. The fixing block extends to the upper side of the lifting frame in a direction close to the lifting frame and is connected to the upper adjusting screw.

5. The brake drum lifting device according to claim 1, wherein: The limit seat located below the lifting frame is a lower limit seat, and the lower limit seat is connected to a lower adjusting screw. The lower adjusting screw is located below the lifting frame and the top surface of the lower adjusting screw is connected to another limit block.

6. The brake drum lifting device according to claim 1, wherein: The rack includes a vertical bracket fixed to the top surface of the rack, the vertical guide rail is fixed on one side of the vertical bracket, and the two limiting seats are respectively located above and below the vertical guide rail.

7. The brake drum lifting device according to claim 1, wherein: The two limiting assemblies respectively located above and below the lifting frame form a group. There are multiple groups of limiting assemblies. One group of limiting assemblies is respectively provided on both sides of each end of the lifting frame. The first driving unit is a cylinder and the second driving unit is a motor.

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