A high-stroke lifting machine

Abstract

This utility model discloses a high-stroke lifting machine, belonging to the field of automobile manufacturing technology. It includes a drive frame and a driven frame installed on a platform or the ground. An active lifting frame and a driven lifting frame are movably installed on opposite sides of the drive frame and driven frame, respectively. A drive support seat is installed on the top of the active lifting frame, and a driven support seat is installed on the top of the driven lifting frame. This utility model uses a drive assembly to drive a chain, which synchronously raises and lowers the active and driven lifting frames. The drive and driven support seats then support the skid, enabling the skid to move between extreme high and low positions in the vertical direction. This device has a simple structure, is easy to customize, and has advantages such as short delivery time, low cost, and easy installation. Furthermore, the use of chain drive and counterweights ensures stable transmission and effectively reduces the load on the motor.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically a high-stroke lifting machine. Background Technology

[0002] In the body shop, painting shop and final assembly shop of the vehicle manufacturing plant, at the body transfer position of the skid system on different elevation platforms, as well as at the body transfer position of the skid system on the same platform at the high work position, the high stroke lifting machine needs to be able to reach the extreme high position and extreme low position of the lifting position.

[0003] For the transfer positions of skid systems on platforms at different elevations, the industry generally adopts three solutions: 1. Using two lifting platforms, the skids carrying the workpiece are raised to the higher platform position; after the workpiece transfer is completed, the lifting platforms descend to return the empty skids to the lower platform position via a common short-stroke jacking machine. This solution has a long procurement and supply cycle for the lifting platforms, high installation accuracy requirements, high procurement costs, and high maintenance costs; 2. Using two self-made belt-driven lifting roller beds instead of the lifting platforms in solution 1. The self-made belt-driven lifting roller beds have high manufacturing costs; the procurement costs of parts are also high; 3. Using a gear and rack lifting system with sprocket and chain drive. Gear and rack drives require high manufacturing and installation accuracy, have limited lifting stroke, require high motor power, and are inconvenient to maintain. Utility Model Content

[0004] The purpose of this utility model is to provide a high-stroke lifting machine that uses a chain to drive the main and driven lifting frames to lift synchronously, achieving the extreme high and low positions of the lifting position. This replaces the lifting platform and lifting roller bed, shortening the supply cycle, avoiding frequent belt replacements, reducing costs, and ensuring normal, stable, and safe production, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-stroke lifting machine, comprising:

[0006] Drive frame and driven frame installed on a platform or ground;

[0007] The drive frame and the driven frame are respectively movably mounted on opposite sides of the drive frame and the driven frame. The top of the drive frame is equipped with a drive support seat, and the top of the driven frame is equipped with a driven support seat.

[0008] It also includes a chain that connects the active lifting frame and the driven lifting frame, and the top of the drive frame and the driven frame are provided with a drive assembly for driving the chain.

[0009] Preferably, one end of the chain is fixed to the top of the driven lifting frame, the driving lifting frame is fixed to the chain, and a counterweight is fixed to the end of the chain away from the driven lifting frame, the counterweight being located on the outside of the drive frame.

[0010] Preferably, the drive assembly includes a drive shaft mounted on the top of the drive frame via a bearing housing, a driven shaft rotatably mounted on the top of the driven frame via a bearing housing, two sets of drive sprockets and driven sprockets fixed on the drive shaft and driven shaft respectively, a chain drivingly connected to the drive sprockets and driven sprockets, and a drive motor for driving the drive shaft mounted on one side of the drive frame.

[0011] Preferably, steering wheels are mounted on the drive frame and the driven frame, and the chain is connected to the steering wheels via a transmission.

[0012] Preferably, slide rails are installed on the opposite sides of the drive frame and the driven frame, and sliders are slidably disposed on the slide rails. The side of the slider away from the slide rail is fixed to the active lifting frame and the driven lifting frame, respectively.

[0013] Preferably, a limit block is installed at the upper end of the slide rail, and the limit block is located above the slider.

[0014] Preferably, an oil receiving groove is fixedly connected between the drive frame and the driven frame, and the oil receiving groove is located below the chain.

[0015] Preferably, a speed reducer is fixed to the top of the drive frame, and the two ends of the speed reducer are respectively connected to the output shaft of the drive motor and the drive shaft.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a drive assembly to drive a chain, which synchronously raises and lowers the active and driven lifting frames. Then, the drive support and driven support support the skid, thereby enabling the skid to move between extreme high and low positions in the vertical direction. This device has a simple structure, is easy to customize, and has the advantages of short delivery cycle, low cost, and easy installation. Moreover, the combination of chain drive and counterweight ensures stable transmission and effectively reduces the load on the motor.

[0018] 2. This utility model uses the cooperation of the drive sprocket and driven sprocket with the steering wheel to turn the chain, realize the movement of the chain, drive the active lifting frame and the driven lifting frame to lift synchronously, and avoid the skid from shaking during the lifting process. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] The following are the labeling elements in the diagram: 1. Drive frame; 2. Driven frame; 3. Active lifting frame; 4. Driven lifting frame; 5. Drive support seat; 6. Driven support seat; 7. Chain; 8. Drive assembly; 81. Drive shaft; 82. Driven shaft; 83. Drive sprocket; 84. Driven sprocket; 85. Drive motor; 9. Counterweight; 10. Steering wheel; 11. Slide rail; 12. Slider; 13. Limit block; 14. Oil receiving groove; 15. Reducer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figures 1-2 The high-stroke lifting machine shown includes:

[0024] A drive frame 1 and a driven frame 2 are installed on a platform or the ground;

[0025] On opposite sides of the drive frame 1 and the driven frame 2, an active lifting frame 3 and a driven lifting frame 4 are respectively movably installed. A drive support seat 5 is installed on the top of the active lifting frame 3, and a driven support seat 6 is installed on the top of the driven lifting frame 4.

[0026] It also includes a chain 7 that connects the active lifting frame 3 and the driven lifting frame 4, and a drive assembly 8 for driving the chain 7 is provided on the top of the drive frame 1 and the driven frame 2.

[0027] The drive assembly 8 drives the chain 7, which in turn drives the active lifting frame 3 and the driven lifting frame 4 synchronously. The drive support seat 5 and the driven support seat 6 then support the skid, enabling the skid to move between extreme high and low positions in the vertical direction. This device has a simple structure, is easy to customize, and has advantages such as short delivery cycle, low cost, and easy installation. Moreover, the combination of chain drive and counterweight 9 ensures stable transmission and effectively reduces the load on the motor.

[0028] Among them, such as Figure 1 As shown:

[0029] One end of the chain 7 is fixed to the top of the driven lifting frame 4, and the driving lifting frame 3 is fixed on the chain 7. A counterweight 9 is fixed to the end of the chain 7 away from the driven lifting frame 4. The counterweight 9 is located on the outside of the drive frame 1. The driving lifting frame 3, the driven lifting frame 4 and the counterweight 9 are connected by the chain 7. The counterweight 9 is located on both sides of the drive shaft 81, which facilitates the balance of the weight of the driving lifting frame 3 and the driven lifting frame 4 by the counterweight 9. This prevents the uneven force on both sides of the drive gear teeth when the drive sprocket 83 drives the chain 7, which would cause the teeth to bear a large deflection force and easily lead to damage to the inside of the drive gear.

[0030] Furthermore, such as Figure 1 As shown:

[0031] The drive assembly 8 includes a drive shaft 81 mounted on the top of the drive frame 1 via a bearing housing, and a driven shaft 82 rotatably mounted on the top of the driven frame 2 via a bearing housing. Two sets of drive sprockets 83 and driven sprockets 84 are fixed on the drive shaft 81 and driven shaft 82, respectively. The chain 7 is connected to the drive sprockets 83 and driven sprockets 84 for transmission. A drive motor 85 is mounted on one side of the drive frame 1 to drive the drive shaft 81. The drive motor 85 drives the drive shaft 81 to rotate, and then the drive shaft 81 drives the chain 7 via the drive sprockets 83. The chain 7 and driven sprockets 84 drive the driven shaft 82 synchronously, so that the drive lifting frame and driven lifting frame 4 connected on the chain 7 can be raised and lowered synchronously, which facilitates the raising and lowering adjustment of the skid using the drive support seat 5 and driven support seat 6.

[0032] Preferred, such as Figure 1-2 As shown:

[0033] Steering wheels 10 are installed on the drive frame 1 and the driven frame 2. The chain 7 is connected to the steering wheels 10. The chain 7 is turned by the cooperation of the drive sprocket 83 and the driven sprocket 84 with the steering wheels 10, so as to realize the movement of the chain 7 and drive the active lifting frame 3 and the driven lifting frame 4 to lift synchronously, so as to avoid the skid from shaking during the lifting process.

[0034] It is worth noting that, such as Figure 1-2 As shown:

[0035] Slide rails 11 are installed on the opposite sides of the drive frame 1 and the driven frame 2. Slider 12 is slidably mounted on the slide rails 11. The side of the slider 12 away from the slide rails 11 is fixed on the active lifting frame 3 and the driven lifting frame 4 respectively. Through the cooperation of the slide rails 11 and the slider 12, the active lifting frame 3 and the driven lifting frame 4 can be easily limited to avoid shaking of the active lifting frame 3 and the driven lifting frame 4, which would affect the stability of the skid lifting.

[0036] In a further preferred embodiment, such as Figure 1 As shown:

[0037] A limit block 13 is installed at the upper end of the slide rail 11. The limit block 13 is located above the slider 12. The limit block 13 facilitates the safety protection of the active lifting frame 3 and the driven lifting frame 4, preventing the active lifting frame 3 and the driven lifting frame 4 from moving upward with the chain 7 and passing over the drive shaft 81 and the driven shaft 82, causing them to turn and separate from the drive frame 1 and the driven frame 2, resulting in a serious safety accident. It plays a limiting role, that is, the extreme high position.

[0038] In addition, such as Figure 1 As shown:

[0039] An oil receiving groove 14 is fixedly connected between the drive frame 1 and the driven frame 2. The oil receiving groove 14 is located below the chain 7. The oil receiving groove 14 facilitates the collection of lubricating oil dripping from the chain 7, preventing the chain 7 from splashing the lubricating oil during the transfer process.

[0040] In this embodiment, as Figure 1 As shown:

[0041] A reducer 15 is fixed on the top of the drive frame 1. The two ends of the reducer 15 are connected to the output shaft of the drive motor 85 and the drive shaft 81, respectively. With the cooperation of the reducer 15, the drive motor 85 can be used to reduce the speed of the drive shaft 81 and control the lifting speed of the active lifting frame 3 and the driven lifting frame 4.

[0042] In practical use, when the drive motor 85 drives the drive shaft 81 to rotate forward, the drive sprocket 83 drives the active lifting frame 3 and the driven lifting frame 4 to move upward with the cooperation of the driven sprocket 84. Then, the active lifting frame 3 and the driven lifting frame 4 drive the drive support seat 5 and the driven support seat 6 to move upward synchronously. When the active lifting frame 3 and the driven lifting frame 4 rise to the position of the limit block 13 on the slide rail 11, they reach the limit high position. Conversely, when the drive motor 85 drives the drive shaft 81 to rotate in the opposite direction, the active lifting frame 3 and the driven lifting frame 4 move downward, and at the same time, the drive support seat 5 and the driven support seat 6 move downward synchronously.

[0043] When the drive motor 85 rotates forward, the drive support 5 and the driven support 6 lift the skid upward. The second skid enters the stacker's roller bed position. The drive motor 85 is then controlled to rotate in the reverse direction, causing the skid lifted by the drive support 5 and the driven support 6 to descend. The skid is then stacked on the second skid. The skid then continues to descend back to its initial position. Then, the two skids are lifted upward together. The third skid enters the stacker's roller bed position. The drive support 6 and the driven support 6 lift the two skids downward and stack them on the third skid, thus achieving skid stacking.

[0044] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-stroke lifting machine, characterized in that, include: A drive frame (1) and a slave frame (2) are installed on a platform or the ground; The drive frame (1) and the driven frame (2) are respectively movably mounted on opposite sides of the drive frame (1) and the driven frame (2). The top of the drive frame (3) is equipped with a drive support seat (5), and the top of the driven frame (4) is equipped with a driven support seat (6). It also includes a chain (7) that connects the active lifting frame (3) and the driven lifting frame (4), and the top of the drive frame (1) and the driven frame (2) are provided with a drive assembly (8) for driving the chain (7).

2. The high-stroke jacking machine according to claim 1, characterized in that: One end of the chain (7) is fixed to the top of the driven lifting frame (4), the active lifting frame (3) is fixed on the chain (7), and a counterweight (9) is fixed to the end of the chain (7) away from the driven lifting frame (4). The counterweight (9) is located on the outside of the drive frame (1).

3. A high-stroke jacking machine according to claim 1, characterized in that: The drive assembly (8) includes a drive shaft (81) mounted on the top of the drive frame (1) via a bearing seat. A driven shaft (82) is rotatably mounted on the top of the driven frame (2) via a bearing seat. Two sets of drive sprockets (83) and driven sprockets (84) are fixed on the drive shaft (81) and driven shaft (82) respectively. The chain (7) is connected to the drive sprockets (83) and driven sprockets (84) for transmission. A drive motor (85) for driving the drive shaft (81) is mounted on one side of the drive frame (1).

4. A high-stroke jacking machine according to claim 1, characterized in that: Steering wheels (10) are mounted on the drive frame (1) and the driven frame (2), and the chain (7) is connected to the steering wheels (10) in a transmission.

5. A high-stroke jacking machine according to claim 1, characterized in that: The drive frame (1) and the driven frame (2) are each equipped with a slide rail (11) on opposite sides. A slider (12) is slidably mounted on the slide rail (11). The side of the slider (12) away from the slide rail (11) is fixed on the active lifting frame (3) and the driven lifting frame (4) respectively.

6. A high-stroke jacking machine according to claim 5, characterized in that: A limiting block (13) is installed at the upper end of the slide rail (11), and the limiting block (13) is located above the slider (12).

7. A high-stroke jacking machine according to claim 1, characterized in that: An oil receiving groove (14) is fixedly connected between the drive frame (1) and the driven frame (2), and the oil receiving groove (14) is located below the chain (7).

8. A high-stroke jacking machine according to claim 1, characterized in that: A speed reducer (15) is fixed on the top of the drive frame (1), and the two ends of the speed reducer (15) are connected to the output shaft of the drive motor (85) and the drive shaft (81) respectively.

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