Rear wheel positioning detection device and scissor lift
By using a rectangular ball bearing plate and an adjustable scissor lift design, the problems of large suspended space and uneven support in the rear wheel alignment detection device are solved, achieving full support of the rear wheel support plate and stability of the detection.
Patent Information
- Application Number
- CN202520274411.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing rear wheel alignment detection devices, the large distance between adjacent alignment discs results in a large suspended space, making the rear wheel support plate prone to deformation. Furthermore, when the vehicle is not parked in the center, the center of gravity of the rear wheels presses on the edge of the alignment disc, causing further deformation of the support plate.
The design employs a rectangular ball bearing plate, with the first and second rectangular ball bearing plates arranged perpendicularly. The balls are arranged in a rectangular pattern and the rectangular ball bearing plates are symmetrically distributed, ensuring that the rear wheels receive full support in any position. In the scissor lift design, the approach bridge support plate has an adjustable angle, and the fastening screw can level the lifting platform. The lifting cylinder is eccentrically positioned to reduce the initial lifting force.
It effectively avoids deformation of the rear wheel support plate, improves the service life of the detection device, and adapts to different vehicle wheelbases, achieving more efficient rear wheel alignment detection.
Smart Images
Figure CN223906450U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle maintenance technical field especially relates to a rear wheel positioning detection device and shearing type lifting machine. BACKGROUND
[0002] At present, the rear wheel positioning detection device is composed of several circular positioning discs, each circular positioning disc is arranged with several balls in a circular shape, and the rear wheel support plate is positioned and detected under the cooperation of the several balls, the defects of the existing rear wheel positioning detection assembly are that, first, the distance between the adjacent positioning discs is far, the suspension space of the rear wheel support plate is large, and the rear wheel support plate is easily deformed by pressure, second, when the vehicle is not parked in the center, the gravity center of the rear wheel will press on the edge part of the positioning disc, and the edge part ball is unevenly distributed, so that the rear wheel support plate is easily deformed by pressure.
[0003] Therefore, it is necessary to develop a rear wheel positioning detection device and shearing type lifting machine to solve the above problems. SUMMARY
[0004] To solve the above technical problems, the utility model discloses a rear wheel positioning detection device and shearing type lifting machine.
[0005] The first invention purpose of the utility model discloses a rear wheel positioning detection device.
[0006] The second invention purpose of the utility model discloses a shearing type lifting machine.
[0007] To realize the above first invention purpose, the utility model provides a rear wheel positioning detection device, a rear wheel support plate and a first rectangular ball disc and a plurality of second rectangular ball discs arranged in an array and arranged below the rear wheel support plate, the first rectangular ball disc is perpendicular to the second rectangular ball disc;
[0008] A plurality of balls are arranged in a rectangular shape along the first rectangular ball disc, and a plurality of balls are arranged in a rectangular shape along the second rectangular ball disc.
[0009] A plurality of second rectangular ball discs are arranged symmetrically.
[0010] Based on the same invention principle, to realize the above second invention purpose, the utility model provides a shearing type lifting machine, characterized by comprising a lifting platform and an X-shaped lifting arm.
[0011] The two ends of the lifting platform are respectively provided with a first approach bridge and a second approach bridge, and the rear wheel positioning detection device of the first invention is installed on the lifting platform and close to the first approach bridge.
[0012] Preferably, the second bridge includes a first support plate and a second support plate, and the angle between the lifting platform and the second support plate is 31-112 degrees.
[0013] The first support plate and the second support plate rotate around the same shaft.
[0014] The first support plate is provided with a first limiting part, and the second support plate is provided with a second limiting part.
[0015] Preferably, when the angle between the lifting platform and the second support plate is 112 degrees, the vertical downward projection of the second support plate directly projects to the first support plate.
[0016] Preferably, when the angle between the lifting platform and the second support plate is 31 degrees, the vertical downward projection of the second support plate directly projects to the lifting platform.
[0017] Preferably, the X-shaped lifting arm includes a first lifting arm, a second lifting arm and a lifting oil cylinder.
[0018] The first lifting arm is installed at the bottom of the lifting platform through a first L-shaped plate and a second L-shaped plate.
[0019] Preferably, the first L-shaped plate includes a first horizontal part and a first vertical part, a first fastening screw in a vertical state is arranged on the first horizontal part, and a plurality of waist holes and a second fastening screw in a horizontal state fastened to the waist holes are arranged on the first vertical part.
[0020] The second L-shaped plate includes a second horizontal part and a second vertical part, a third fastening screw in a vertical state is arranged on the second horizontal part, and a plurality of waist holes and a fourth fastening screw in a horizontal state fastened to the waist holes are arranged on the second vertical part.
[0021] Preferably, the fulcrum of the lifting oil cylinder is located below the axis of the lifting oil cylinder.
[0022] Preferably, the minimum distance between the lifting platform and the ground is 360mm.
[0023] Preferably, a small shear lifting assembly is arranged in the middle of the lifting platform.
[0024] Compared with the prior art, the technical effects of the present application are as follows:
[0025] A plurality of balls are arranged in a rectangular array along the first rectangular ball disc, and a plurality of balls are arranged in the middle of the first rectangular ball disc, so that the rear wheel is fully supported at any position above the first rectangular ball disc, and the rear wheel support plate cannot be compressed and deformed; a plurality of second rectangular ball discs are symmetrically distributed on both sides of the center line of the rear wheel positioning detection device, so that the rear wheel can be fully supported whether it is centered or deviated to the left or right, and the rear wheel support plate cannot be compressed and deformed, thereby prolonging the service life of the rear wheel positioning detection assembly. BRIEF DESCRIPTION OF DRAWINGS
[0026] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0027] Figure 1 is a three-dimensional structure schematic diagram of the scissors lifting machine in the non-lifting state of the present application.
[0028] Figure 2 is a three-dimensional structure schematic diagram of the scissors lifting machine in the lifting state of the present application.
[0029] Figure 3 is a three-dimensional structure schematic diagram of the rear wheel positioning detection device of the present application.
[0030] Figure 4 is a three-dimensional structure schematic diagram of the existing rear wheel positioning detection device.
[0031] Figure 5 is a three-dimensional structure schematic diagram of the second approach bridge of the present application.
[0032] Figure 6 is a three-dimensional structure schematic diagram of the second approach bridge of the present application.
[0033] Figure 7 is an explosion structure schematic diagram of the second approach bridge of the present application.
[0034] Figure 8 is a three-dimensional structure schematic diagram of the scissors lifting machine in the lifting state of the present application.
[0035] Figure 9 is a three-dimensional structure schematic diagram of the Figure 8 of the present application.
[0036] Figure 10 is a sectional structure schematic diagram of the lifting oil cylinder of the present application.
[0037] Wherein, 1, rear wheel support plate; 2, first rectangular ball disc; 3, second rectangular ball disc; 4, ball; 5, ball disc; 6, lifting platform; 61, first approach bridge; 62, second approach bridge; 621, first support plate; 622, second support plate; 623, shaft; 624, first limiting portion; 625, second limiting portion; 7, X-shaped lifting arm; 71, first lifting arm; 711, first L-shaped plate; 7111, first horizontal portion; 7112, first vertical portion; 7113, first fastening screw; 7114, waist hole; 7115, second fastening screw; 712, second L-shaped plate; 7121, second horizontal portion; 7122, second vertical portion; 7123, third fastening screw; 7124, waist hole; 7125, fourth fastening screw; 72, second lifting arm; 73, lifting oil cylinder; 731, fulcrum; 8, small shear lifting assembly. DETAILED DESCRIPTION
[0038] The utility model will be explained in detail below in combination with the embodiments shown in the drawings, but it should be explained that these embodiments are not the limitation of the utility model, and the equivalent transformation or replacement of function, method or structure made by the ordinary skilled in the art according to these embodiments all belong to the protection scope of the utility model. Example 1
[0039] Referring to Figures 1 to 3 The embodiment discloses a specific implementation of a rear wheel positioning detection device.
[0040] The rear wheel positioning detection device, referring to Figures 1 to 3 The rear wheel support plate 1 and the first rectangular ball disc 2 and the plurality of second rectangular ball discs 3 arranged in an array below the rear wheel support plate 1, the first rectangular ball disc 2 is perpendicular to the second rectangular ball disc 3; a plurality of balls 4 are arranged in a rectangular array along the first rectangular ball disc 2, and a plurality of balls 4 are arranged in a rectangular array along the second rectangular ball disc 3; a plurality of second rectangular ball discs 3 are symmetrically arranged.
[0041] Specifically, referring to Figure 4 , Figure 4The existing rear wheel alignment detection device consists of a ball bearing plate 5 composed of several discs and several balls 4 arranged in a circle. The rear wheel support plate performs rear wheel alignment detection with the cooperation of several balls. The defects of the existing rear wheel alignment detection component are: first, the distance between adjacent alignment discs is relatively large, and the unsupported space of the rear wheel support plate is large, making the rear wheel support plate easy to be deformed; second, when the vehicle is not parked in the center, the center of gravity of the rear wheel will press on the edge of the alignment disc, and the ball bearings at the edge are unevenly distributed, making the rear wheel support plate easy to be deformed. Therefore, the rear wheel alignment detection device of this embodiment is provided with a first rectangular ball bearing plate 2 and a plurality of second rectangular ball bearing plates 3, wherein the first rectangular ball bearing plate 2 is perpendicular to the second rectangular ball bearing plates 3; a plurality of balls 4 are arranged in a rectangular pattern along the first rectangular ball bearing plate 2, the width of the first rectangular ball bearing plate 2 is approximately the same as the width of the rear wheel support plate 1, so that the rear wheel support plate 1 can be fully supported; a plurality of balls 4 are arranged in a rectangular pattern along the second rectangular ball bearing plates 3, the plurality of second rectangular ball bearing plates 3 are arranged symmetrically, and the plurality of second rectangular ball bearing plates 3 are basically distributed along the length direction of the rear wheel support plate 1 and also basically distributed along the width direction of the rear wheel support plate 1, so that the rear wheel support plate 1 is fully supported in both the width and length directions, and the unsupported space below it is small enough, so that the rear wheel support plate 1 can be effectively prevented from being deformed by pressure, whether the rear wheel is centered or biased to the left or right. Example 2
[0042] This embodiment discloses a specific implementation of a scissor lift.
[0043] Scissor lift, reference Figures 1 to 3 , Figures 5 to 10 As shown, the system includes a lifting platform 6 and an X-shaped lifting arm 7. A small scissor lifting assembly 8 is installed in the middle of the lifting platform 6. A first guide bridge 61 and a second guide bridge 62 are respectively installed at both ends of the lifting platform 6. The rear wheel alignment detection device described in Embodiment 1 is installed on the lifting platform 6 and near the end of the first guide bridge 61. The front wheels of the vehicle are aligned with the guide bridge. Figure 1 Drive in the direction of the arrow shown, and the rear wheel presses on the rear wheel support plate 1 for rear wheel positioning detection.
[0044] See Figures 5 to 7, the vehicle passes the lifting platform 6 through the first approach bridge 61 and the second approach bridge 62, the second approach bridge 62 comprises a first support plate 621 and a second support plate 622, the included angle between the lifting platform 6 and the second support plate 622 is 31°-112°; the first support plate 621 and the second support plate 622 rotate around the same shaft 623; the first support plate 621 is provided with a first limiting part 624, the first limiting part 624 abuts against the lifting platform 6 and makes the first support plate 1171 present a certain slope, the second support plate 622 is provided with a second limiting part 625, the second limiting part 625 can swing between the lifting platform 6 and the first support plate 621; when the included angle a between the lifting platform 6 and the second support plate 622 is 112°, the vertical downward projection of the second support plate 622 directly projects to the first support plate 621, that is, the second support plate 622 is far away from the lifting platform 6, the front wheels of the vehicle can run to the edge of the lifting platform 6, so as to avoid the interference of the second support plate 622 to the front wheels, increase the effective length of the lifting platform 6, and thus the vehicle with longer wheelbase can be lifted; when the included angle b between the lifting platform 6 and the second support plate 622 is 31°, the vertical downward projection of the second support plate 622 directly projects to the lifting platform 6, in this case, the activity range of the front wheels of the vehicle will be affected by the second support plate 1172, so as to adapt to the vehicle with short wheelbase.
[0045] Referring to Figure 8 and Figure 9, the X-shaped lifting arm 7 includes a first lifting arm 71, a second lifting arm 72 and a lifting oil cylinder 73; the first lifting arm 71 is installed at the bottom of the lifting platform 6 through a first L-shaped plate 711 and a second L-shaped plate 712; the first L-shaped plate 711 includes a first horizontal part 7111 and a first vertical part 7112, a first fastening screw 7113 in a vertical state is arranged on the first horizontal part 7111, and a plurality of waist holes 7114 and a second fastening screw 7115 in a horizontal state fastened to the waist holes 7114 are arranged on the first vertical part 7112; the second L-shaped plate 712 includes a second horizontal part 7121 and a second vertical part 7122, a third fastening screw 7123 in a vertical state is arranged on the second horizontal part 7121, and a plurality of waist holes 7124 and a fourth fastening screw 7125 in a horizontal state fastened to the waist holes 7124 are arranged on the second vertical part 7122; when the horizontal part of the lifting platform 6 is insufficient, the second fastening screw 7115 and the fourth fastening screw 7125 are loosened, the first fastening screw 7113 and / or the third fastening screw 7123 are screwed, the height position of the first L-shaped plate 711 and / or the second L-shaped plate 712 is changed, and thus the lifting platform 6 is leveled, after leveling, the second fastening screw 7115 and the fourth fastening screw 7125 are tightened again, and the lifting platform 6 is leveled quickly; in the embodiment, the minimum distance between the lifting platform 6 and the ground is 360 mm, that is, when the lifting platform 6 is in a non-lifting state, the height of the lifting platform 6 from the ground is only 360 mm, in order to make the initial lifting force of the lifting oil cylinder 73 as small as possible, referring to Figure 10 , the lifting oil cylinder 73 is an eccentric oil cylinder, that is, the fulcrum 731 of the lifting oil cylinder 73 is located below the axis of the lifting oil cylinder 73, compared with a non-eccentric oil cylinder, through the eccentric arrangement of the embodiment, the initial angle of the lifting oil cylinder 73 is increased.
[0046] The shear type lifting machine of embodiment 2 is the same as that of embodiment 1, please refer to embodiment 1, which will not be repeated.
Claims
1. A rear wheel alignment detection device, characterized in that, The rear wheel support plate, a first rectangular ball bearing plate disposed below the rear wheel support plate, and a plurality of second rectangular ball bearing plates arranged in an array, wherein the first rectangular ball bearing plate and the second rectangular ball bearing plates are perpendicular to each other. Several balls are arranged in a rectangular pattern along the first rectangular ball bearing disk, and several balls are arranged in a rectangular pattern along the second rectangular ball bearing disk; Several second rectangular ball bearing disks are arranged symmetrically.
2. A scissor lift, characterized in that, Includes a lifting platform and an X-shaped lifting arm; The lifting platform is provided with a first guide bridge and a second guide bridge at both ends, and the rear wheel alignment detection device of claim 1 is installed on the lifting platform and close to the first guide bridge.
3. The scissor lift as described in claim 2, characterized in that, The second approach bridge includes a first support plate and a second support plate, and the included angle between the lifting platform and the second support plate is 31°-112°; The first support plate and the second support plate rotate about the same axis; The first support plate is provided with a first limiting part, and the second support plate is provided with a second limiting part.
4. The scissor lift as described in claim 3, characterized in that, When the angle between the lifting platform and the second support plate is 112°, the vertical downward projection of the second support plate is directly projected onto the first support plate.
5. The scissor lift as described in claim 3, characterized in that, When the angle between the lifting platform and the second support plate is 31°, the vertical downward projection of the second support plate is directly projected onto the lifting platform.
6. The scissor lift as described in claim 2, characterized in that, The X-type lifting arm includes a first lifting arm, a second lifting arm, and a lifting cylinder; The first lifting arm is mounted on the bottom of the lifting platform via a first L-shaped plate and a second L-shaped plate.
7. The scissor lift as described in claim 6, characterized in that, The first L-shaped plate includes a first horizontal part and a first vertical part. A first fastening screw in a vertical state is provided in the first horizontal part, and a plurality of waist holes and a second fastening screw in a horizontal state fastened to the waist holes are provided in the first vertical part. The second L-shaped plate includes a second horizontal part and a second vertical part. A third fastening screw in a vertical state is provided in the second horizontal part, and a plurality of waist holes and a fourth fastening screw in a horizontal state is provided in the second vertical part and fastened to the waist holes.
8. The scissor lift as described in claim 6, characterized in that, The fulcrum of the lifting cylinder is located below the axis of the lifting cylinder.
9. The scissor lift as described in any one of claims 2-8, characterized in that, The minimum distance between the lifting platform and the ground is 360mm.
10. The scissor lift as described in any one of claims 2-8, characterized in that, The lifting platform is equipped with a small shear lifting component in the middle.