Hoisting device for overhauling automobile chassis

Abstract

The utility model relates to the technical field of automobile maintenance, and discloses an automobile chassis maintenance lifting device which comprises a supporting column, a fixing frame is fixedly connected to the top of the supporting column, and a hydraulic rod is fixedly connected to the position, close to a middle shaft of one side of the supporting column, of the fixing frame. The width adjusting mechanism comprises a mounting frame fixedly connected to the output end of the hydraulic rod, a fixing rod is fixedly connected to the side, away from the hydraulic rod, of the mounting frame, a fixing plate is fixedly connected to the end, away from the mounting frame, of the fixing rod, and a sliding rod is fixedly connected to the sides, close to each other, of the fixing plate. The first servo motor is started clockwise, the first servo motor drives the first bidirectional threaded rod to rotate, and the sliding rods limit the first sliding blocks, so that the two first sliding blocks approach each other when the first bidirectional threaded rod rotates, and the first sliding blocks drive the length adjusting mechanisms to approach each other; and the length adjusting mechanism drives the fixing mechanism to approach, so that the automobile bases with different widths are fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile repair, in particular to an automobile chassis repair lifting device. Background Art

[0002] A lifting device refers to a device that lifts objects to a certain height. The automobile chassis refers to a combination of four parts on the automobile: the transmission system, the running system, the steering system, and the braking system. It supports and installs the automobile engine and its components and assemblies to form the overall shape of the automobile, withstand the engine power, and ensure normal driving. When the automobile chassis needs to be repaired, the lifting frame in the lifting device is needed.

[0003] The application number is CN201920964608.4, and discloses a lifting device for automatic welding of automobile chassis, including a lifting mechanism, a support platform, a servo motor and a slide rail. The lifting mechanism includes a concave frame, electric control boxes are provided at both ends of the top of the frame, mounting seats are provided at both ends of the top of the electric control box, and the mounting seats are installed on the frame by fixing bolts. A motor is provided on one side of the inside of the electric control box, and the output shaft of the motor is connected to a winding wheel. A steel wire rope is wound around the winding wheel, and the steel wire rope is vertically downward and the end is connected to a hook. The four corners of the bottom surface of the support platform are fixedly connected to sliding blocks, and the sliding blocks are slidably connected to the slide rails. A ball nut is provided at the central position of the bottom surface of the support platform, and the ball nut is sleeved with a ball screw. The output shaft of the servo motor is connected to one end of the ball screw, and a support plate is provided in the accommodating groove of the support platform, and hanging rings are provided at the four corners of the top side of the support plate. The utility model realizes automatic lifting and controlling of the support plate through the lifting mechanism, which is convenient for workers to weld, and the two lifting mechanisms work synchronously and have good lifting stability.

[0004] The device comprises a machine, a winding wheel, a wire rope, a hook, a hanging ring and other structures to realize automatic lifting and controlling of the support plate. The position of the lifting mechanism of the device is fixed, but the length and width of the automobile base are different, which makes it difficult for the device to lift chassis of different sizes. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a vehicle chassis maintenance lifting device comprising a support column, a support column, a fixing frame fixedly connected to the top of the support column, a hydraulic rod fixedly connected to the fixing frame at a central axis on one side of the support column, and also comprising: a width adjustment mechanism comprising a mounting frame fixedly connected to the output end of the hydraulic rod, a fixing rod fixedly connected to the side of the mounting frame away from the hydraulic rod, a fixing plate fixedly connected to an end of the fixing rod away from the mounting frame, a sliding rod fixedly connected to the side of the fixing plates close to each other, and a bidirectional threaded rod rotatably connected to the side of the fixing plates close to each other, so that the first sliding block can move in the opposite direction along the first sliding bar by rotating the first bidirectional threaded rod.

[0007] Furthermore, the first bidirectional threaded rod passes through the front side of the front fixed plate, and the front side of the front fixed plate is fixedly connected to a first servo motor, the output end of the first servo motor is fixedly connected to the front end of the first bidirectional threaded rod, the outer wall of the first bidirectional threaded rod is threadedly connected to a first slider, and the inner wall of the first slider is slidably connected to the outer wall of the slider, and this arrangement is to drive the first bidirectional threaded rod to rotate by the first servo motor, thereby driving the first slider to move.

[0008] Furthermore, the sliding rod is symmetrically arranged with respect to the center of the fixing plate, the first bidirectional threaded rod is located at the central axis of the fixing plate, and the length of the first sliding block is greater than the length of the fixing plate.

[0009] Furthermore, a length adjustment mechanism is provided at the bottom of the first slider, and the length adjustment mechanism includes a fixed block fixedly connected to the bottom of the first slider, two fixed blocks are fixedly connected to the side of the fixed block away from the first slider, and a second bidirectional threaded rod is rotatably connected to the side of the fixed blocks close to each other.

[0010] Furthermore, the right end of the second bidirectional threaded rod passes through the side wall of the right fixed block, the right wall of the right fixed block is fixedly connected to a second servo motor, the output end of the second servo motor is fixedly connected to the right end of the second bidirectional threaded rod, and the outer wall of the second bidirectional threaded rod is threadedly connected to a second slider. This arrangement is to drive the second sliders to move in the opposite direction through the rotation of the second bidirectional threaded rod, thereby driving the fixing mechanism to move.

[0011] Furthermore, the fixed block is symmetrically arranged with respect to the center of the first sliding block, and two second sliding blocks are arranged with respect to the center of the fixed block.

[0012] Furthermore, a fixing mechanism is provided at the bottom of the second sliding block, and the fixing mechanism comprises a U-shaped plate fixedly connected to the bottom of the second sliding block, and a threaded rod is rotatably connected to the top of the U-shaped plate.

[0013] Furthermore, the bottom end of the threaded rod passes through the top of the U-shaped plate and extends to the inside, the top of the threaded rod is fixedly connected to a rotating rod, and the end of the bidirectional threaded rod away from the rotating rod is rotatably connected to a clamping plate, and the clamping plate is located inside the U-shaped plate. This arrangement is to enable the rotating rod to drive the threaded rod to move by rotating the rotating rod, thereby changing the length of the threaded rod inside the U-shaped plate.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model starts the first servo motor clockwise, and the first servo motor drives the first bidirectional threaded rod to rotate. Since the slide rod limits the first slider, the two first sliders will approach each other when the first bidirectional threaded rod rotates, and the first slider drives the length adjustment mechanism to approach each other, and the length adjustment mechanism drives the fixing mechanism to approach each other, so as to fix the car bases of different widths.

[0016] (2) The utility model starts the second servo motor clockwise, and the rotation of the second servo motor drives the second bidirectional threaded rod to rotate. Since the bottom of the first slider contacts the top of the second slider, the second slider cannot rotate. At this time, the two second sliders move closer to each other. When the second servo motor is started counterclockwise, the two second sliders move away from each other, so that the distance between the two second sliders changes. The movement of the second slider drives the movement of the fixing mechanism, so that the position of the fixing mechanism can be adjusted according to the length of the car base.

[0017] (3) The utility model rotates the rotating rod clockwise, and the second slider drives the threaded rod to rotate. The rotation of the threaded rod will cause the threaded rod to move downward, and the threaded rod will push the clamping plate to move downward, so that the clamping plate contacts the top of the car base, thereby fixing the car base and preventing the car base from shaking or even falling off during the lifting process.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of the fixing frame of the utility model;

[0022] Figure 3 This is a schematic diagram of the width adjustment mechanism structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the length adjustment mechanism structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1. support column; 11. fixed frame; 12. hydraulic rod; 2. width adjustment mechanism; 201. mounting frame; 202. fixed rod; 203. fixed plate; 204. sliding rod; 205. first bidirectional threaded rod; 206. first servo motor; 207. first slider; 3. length adjustment mechanism; 301. fixed block; 302. second bidirectional threaded rod; 303. second servo motor; 304. second slider; 4. fixing mechanism; 401. U-shaped plate; 402. threaded rod; 403. rotating rod; 404. clamping plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Figure 5 As shown, it includes a support column 1, a fixing frame 11 is fixedly connected to the top of the support column 1, and a hydraulic rod 12 is fixedly connected to the fixing frame 11 at the middle axis of one side of the support column 1, and also includes:

[0029] The width adjustment mechanism 2 includes a mounting frame 201 fixedly connected to the output end of the hydraulic rod 12, a fixed rod 202 is fixedly connected to the side of the mounting frame 201 away from the hydraulic rod 12, a fixed plate 203 is fixedly connected to the end of the fixed rod 202 away from the mounting frame 201, a sliding rod 204 is fixedly connected to the side of the fixed plates 203 close to each other, and a first bidirectional threaded rod 205 is rotatably connected to the side of the fixed plates 203 close to each other;

[0030] Among them, the first bidirectional threaded rod 205 passes through the front side of the front fixed plate 203, and the front side of the front fixed plate 203 is fixedly connected with the first servo motor 206, the output end of the first servo motor 206 is fixedly connected with the front end of the first bidirectional threaded rod 205, and the outer wall of the first bidirectional threaded rod 205 is threadedly connected with the first slider 207, and the inner wall of the first slider 207 is slidably connected to the outer wall of the slide rod 204.

[0031] The slide bar 204 is symmetrically arranged with respect to the center of the fixed plate 203 , the first bidirectional threaded rod 205 is located at the central axis of the fixed plate 203 , and the length of the first slide block 207 is greater than that of the fixed plate 203 .

[0032] A length adjustment mechanism 3 is provided at the bottom of the first slider 207, and the length adjustment mechanism 3 includes a fixed block 301 fixedly connected to the bottom of the first slider 207, two fixed blocks 301 are fixedly connected to the side of the fixed block 301 away from the first slider 207, and a second bidirectional threaded rod 302 is rotatably connected to the side of the fixed blocks 301 close to each other.

[0033] The right end of the second bidirectional threaded rod 302 passes through the side wall of the right fixed block 301, and the right wall of the right fixed block 301 is fixedly connected to the second servo motor 303. The output end of the second servo motor 303 is fixedly connected to the right end of the second bidirectional threaded rod 302, and the outer wall of the second bidirectional threaded rod 302 is threadedly connected to the second slider 304.

[0034] The fixed block 301 is symmetrically arranged with respect to the center of the first sliding block 207 . Two second sliding blocks 304 are provided, and the second sliding blocks 304 are symmetrically arranged with respect to the center of the fixed block 301 .

[0035] A fixing mechanism 4 is disposed at the bottom of the second sliding block 304 . The fixing mechanism 4 includes a U-shaped plate 401 fixedly connected to the bottom of the second sliding block 304 . A threaded rod 402 is rotatably connected to the top of the U-shaped plate 401 .

[0036] The bottom end of the threaded rod 402 passes through the top of the U-shaped plate 401 and extends to the inside. The top of the threaded rod 402 is fixedly connected to a rotating rod 403. The end of the threaded rod 402 away from the rotating rod 403 is rotatably connected to a clamping plate 404, and the clamping plate 404 is located inside the U-shaped plate 401.

[0037] When in use, start the hydraulic rod 12, the hydraulic rod 12 will push the width adjustment mechanism 2, the length adjustment mechanism 3 and the fixing mechanism 4 to descend, so that the inner bottom wall of the U-shaped plate 401 on the fixing mechanism 4 is flush with the bottom of the automobile chassis, and then start the second servo motor 303 clockwise, the rotation of the second servo motor 303 will drive the second bidirectional threaded rod 302 to rotate, because the bottom of the first slider 207 contacts the top of the second slider 304, the second slider 304 cannot rotate, and the two second sliders 304 will move closer to each other at this time, start the second servo motor 303 counterclockwise, the two second sliders 304 will move away from each other, so that the distance between the two second sliders 304 changes, and the movement of the second slider 304 drives the fixing mechanism 4 to move, so that the position of the fixing mechanism 4 can be adjusted according to the length of the automobile base, and then start the first servo motor 206 clockwise. The motor 206 drives the first bidirectional threaded rod 205 to rotate. Since the sliding rod 204 will limit the first sliding block 207, the two first sliding blocks 207 will approach each other when the first bidirectional threaded rod 205 rotates. The first sliding block 207 drives the length adjustment mechanism 3 to approach each other, and the length adjustment mechanism 3 drives the fixing mechanism 4 to approach, thereby fixing the car bases of different widths. When the inner bottom wall of the shape plate 401 is in contact with the car base, the rotating rod 403 is rotated clockwise, and the second sliding block 304 drives the threaded rod 402 to rotate. The rotation of the threaded rod 402 will cause the threaded rod 402 to move downward, and the threaded rod 402 will push the clamping plate 404 to move downward, so that the clamping plate 404 contacts the top of the car base, thereby fixing the car base to prevent the car base from shaking or even detaching during the lifting process, and then starting the hydraulic rod 12 to rise, thereby lifting the car base.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle chassis maintenance lifting device, comprising a support column (1), a fixing frame (11) fixedly connected to the top of the support column (1), a hydraulic rod (12) fixedly connected to the fixing frame (11) at the center axis of one side of the support column (1), characterized in that: Also includes: The width adjustment mechanism (2) comprises a mounting frame (201) fixedly connected to the output end of the hydraulic rod (12); a fixed rod (202) is fixedly connected to the side of the mounting frame (201) away from the hydraulic rod (12); a fixed plate (203) is fixedly connected to the end of the fixed rod (202) away from the mounting frame (201); a sliding rod (204) is fixedly connected to the side of the fixed plates (203) close to each other; and a first bidirectional threaded rod (205) is rotatably connected to the side of the fixed plates (203) close to each other; The first bidirectional threaded rod (205) passes through the front side of the front fixed plate (203); the front side of the front fixed plate (203) is fixedly connected to a first servo motor (206); the output end of the first servo motor (206) is fixedly connected to the front end of the first bidirectional threaded rod (205); the outer wall of the first bidirectional threaded rod (205) is threadedly connected to a first slider (207); the inner wall of the first slider (207) is slidably connected to the outer wall of the slide rod (204).

2. The automobile chassis maintenance lifting device according to claim 1, characterized in that: The sliding rod (204) is symmetrically arranged with respect to the center of the fixing plate (203), the first bidirectional threaded rod (205) is located at the central axis of the fixing plate (203), and the length of the first sliding block (207) is greater than the length of the fixing plate (203).

3. The automobile chassis maintenance lifting device according to claim 1, characterized in that: A length adjustment mechanism (3) is provided at the bottom of the first slider (207), and the length adjustment mechanism (3) comprises a fixed block (301) fixedly connected to the bottom of the first slider (207), two fixed blocks (301) are fixedly connected to the side of the fixed block (301) away from the first slider (207), and a second bidirectional threaded rod (302) is rotatably connected to the side of the fixed blocks (301) close to each other.

4. The automobile chassis maintenance lifting device according to claim 3, characterized in that: The right end of the second bidirectional threaded rod (302) passes through the side wall of the right fixing block (301); the right wall of the right fixing block (301) is fixedly connected to a second servo motor (303); the output end of the second servo motor (303) is fixedly connected to the right end of the second bidirectional threaded rod (302); and the outer wall of the second bidirectional threaded rod (302) is threadedly connected to a second sliding block (304).

5. The automobile chassis maintenance lifting device according to claim 4, characterized in that: The fixed block (301) is symmetrically arranged with respect to the center of the first sliding block (207), and two second sliding blocks (304) are arranged, and the second sliding blocks (304) are symmetrically arranged with respect to the center of the fixed block (301).

6. The automobile chassis maintenance lifting device according to claim 4, characterized in that: A fixing mechanism (4) is provided at the bottom of the second sliding block (304), and the fixing mechanism (4) comprises a U-shaped plate (401) fixedly connected to the bottom of the second sliding block (304), and a threaded rod (402) is rotatably connected to the top of the U-shaped plate (401).

7. The automobile chassis maintenance lifting device according to claim 6, characterized in that: The bottom end of the threaded rod (402) passes through the top of the U-shaped plate (401) and extends to the inside; the top of the threaded rod (402) is fixedly connected to a rotating rod (403); one end of the threaded rod (402) away from the rotating rod (403) is rotatably connected to a clamping plate (404); and the clamping plate (404) is located inside the U-shaped plate (401).

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