Roller locking mechanism on four-wheel positioning device
By designing a cylinder -driven lock component in the four -wheel positioning device, the problem of large noise, severe vibration, and fast wear of the existing roller locking structure have been solved. Essence
Patent Information
- Application Number
- CN202323582211.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2033-12-27
AI Technical Summary
In the existing four-wheel positioning device, the roller locking structure has high noise, serious vibration, fast wear and complex structure, resulting in failure of the locking function and difficult maintenance.
Design a lock component that includes a cylinder, lock block pad, locking block and lock block pressure plate. Through the lift movement of the cylinder, the lock block is fitted with the drum to achieve the lock. This structure is simple, easy to operate, good locking effect, and easy to disassemble and maintain.
A stable locking of the drum, reducing the noise and vibration, extending the service life, simplifying the maintenance process, and ensuring the smooth progress of vehicle detection and the reliability of the equipment.
Smart Images
Figure CN222419518U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile detection equipment, in particular to a roller locking mechanism on a four-wheel alignment device. Background Art
[0002] During the automobile production process, the assembled vehicle needs to be measured and adjusted by the four-wheel alignment equipment, such as the vehicle's steering angle, toe, kingpin, camber, caster, and inclination-related structures, to ensure that the vehicle parameters meet the design parameters and meet national standards. When the vehicle is tested above the four-wheel alignment equipment, the roller needs to be completely locked to facilitate testing and vehicle entry and exit. The current locking structure uses a wedge-shaped slider structure or a gear rack locking structure, which produces great noise and vibration during locking, and wears quickly and is prone to locking function failure. Due to the complex structure, the workload of dismantling the device on site during maintenance is extremely large. Therefore, it is necessary to provide a roller locking structure with a simple structure and easy maintenance. Utility Model Content
[0003] The purpose of the utility model is to provide a roller locking mechanism on a four-wheel alignment device, which has solved the above-mentioned technical problems.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roller locking mechanism on a four-wheel alignment device, comprising a roller bracket, two rollers are rotatably mounted between two side plates of the roller bracket, a locking assembly is mounted on the top surface of the bottom plate of the roller bracket, two locking assemblies are located at the gap between the two rollers, the locking assembly comprises a cylinder, a locking block pad, a locking block and a locking block pressure plate, the cylinder is fixedly mounted on the top surface of the bottom plate of the roller bracket, and a locking block pad is mounted on the lifting end of the cylinder. A locking block is fixedly installed on the top of the locking block pad by fixing bolts, and the locking block pad is a "convex" shaped block with a convex cross-section in the vertical direction. A slot is provided on the bottom surface of the locking block, and the top of the locking block pad is stuck in the slot on the bottom surface of the locking block. Threaded holes are provided on the locking block pad and the locking block, and a locking block pressure plate with two threaded holes is placed on the top surface of the locking block. The fixing bolts are correspondingly connected to the threaded holes of the locking block pad, the locking block and the locking block pressure plate, and a position sensor is installed on the top surface of the bottom plate of the roller bracket.
[0005] Preferably, the two side surfaces of the locking block are inclined surfaces, and the inclined surfaces are processed with arc surfaces that completely fit the roller.
[0006] Preferably, a groove is formed on the bottom surface of the locking block pad, and a clamping block adapted to the groove of the locking block pad is fixedly mounted on the lifting end of the cylinder, and the clamping block is clamped in the groove of the locking block pad.
[0007] Preferably, an L-shaped plate is installed on the top of the locking block pressure plate through fixing bolts, and is used for the position sensor to receive the lifting height of the cylinder.
[0008] Preferably, the position sensor is installed at the bottom of the bottom plate of the roller support through a right-angle plate, a strip groove is provided on the vertical surface between the right-angle plate and the bottom plate of the roller support, and the position sensor is horizontally installed in the strip groove.
[0009] Compared with the prior art, the utility model has the following beneficial effects:
[0010] The utility model has an ingenious structure. The device locks the roller by installing a locking assembly between two rollers. Compared with the traditional wedge-shaped slider structure or gear rack locking structure, it has a simple structure and is easy to operate. The locking block of the locking assembly is connected by a fixing bolt, and its locking effect is excellent. It is also easy to disassemble and maintain, ensuring smooth entry and exit of the vehicle during inspection. The operation is more stable, reliable, and highly adaptable. It is suitable for all four-wheel alignment equipment that requires fixed rollers. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0012] Figure 2 This is a schematic diagram of the installation position structure of the locking assembly of the utility model;
[0013] Figure 3 This is an exploded view of the locking assembly of the utility model;
[0014] Figure 4 This is a bottom-up three-dimensional structural diagram of the locking block of the utility model;
[0015] Figure 5 It is a top view of the utility model.
[0016] In the figure: 1. roller bracket; 2. roller; 3. locking assembly; 4. position sensor; 31. locking block pressure plate; 32. locking block pad; 33. locking block; 34. cylinder; 35. fixing bolt. DETAILED DESCRIPTION
[0017] 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 technical personnel in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figures 1 to 5The utility model provides a technical solution: a roller locking mechanism on a four-wheel alignment device, comprising a roller bracket 1, two rollers 2 are rotatably installed between the two side plates of the roller bracket 1, a locking assembly 3 is installed on the top surface of the bottom plate of the roller bracket 1, and the two locking assemblies 3 are located at the gap between the two rollers 2. The locking assembly 3 comprises a cylinder 31, a locking block pad 32, a locking block 33 and a locking block pressure plate 34. The cylinder 31 is fixedly installed on the top surface of the bottom plate of the roller bracket 1, and a locking block pad 32 is installed on the lifting end of the cylinder 31. The top of the locking block pad 32 is fixedly installed with a locking block 33 by a fixing bolt 35. The locking block 33 is a polyurethane locking block made of polyurethane rubber with a hardness range of 70A-90A. The polyurethane locking block has a large friction coefficient with the smooth metal roller surface, has a large friction force and is wear-resistant, has a long service life, and the polyurethane locking block is The roller surface is completely fitted when locked, and the friction area is large. The locking block pad 32 is a "convex" block. A slot is provided on the bottom surface of the locking block 33. The top of the locking block pad 32 is stuck in the slot on the bottom surface of the locking block 33. Threaded holes are provided on the locking block pad 32 and the locking block 33. A locking block pressure plate 34 with two threaded holes is placed on the top surface of the locking block 33. The fixing bolts 35 are correspondingly connected to the threaded holes of the locking block pad 32, the locking block 33 and the locking block pressure plate 34. A position sensor 4 is installed on the top surface of the bottom plate of the roller bracket 1. The position sensor can sense the actions of multiple groups of cylinders 34 at the same time. The number of cylinders 34 can be increased as needed. The locking block pressure plates 34 are connected in parallel through air pipes, and multiple groups can be used for simultaneous locking and release. The stroke of the cylinder 32 is 20mm, and the gap between the locking block 33 and the roller 2 is less than 5mm, that is, the locking block can still be used after being worn for 15mm.
[0019] Furthermore, two side surfaces of the locking block 33 are inclined surfaces, and arc surfaces that are completely in contact with the drum 2 are processed on the inclined surfaces.
[0020] Furthermore, a groove is formed on the bottom surface of the locking block pad 32 , and a clamping block adapted to the groove of the locking block pad 32 is fixedly mounted on the lifting end of the cylinder 31 , and the clamping block is clamped in the groove of the locking block pad 32 .
[0021] Furthermore, an L-shaped plate is installed on the top of the locking block pressure plate 34 through a fixing bolt 35 , and is used for the position sensor 4 to receive the lifting height of the cylinder 31 .
[0022] Furthermore, the position sensor 4 is installed at the bottom of the bottom plate of the roller bracket 1 through a right-angle plate. After the position sensor 4 and the cylinder 31 are electrically connected to the industrial controller, a control system for controlling the cylinder 31 is formed. A strip groove is provided on the vertical surface of the right-angle plate and the bottom plate of the roller bracket 1, and the position sensor 4 is horizontally installed in the strip groove. When the device is in use, the position sensor 4 detects the position of the locking block to determine whether the conditions for getting on the vehicle or the conditions for rotating the roller 2 are met. When the cylinder 31 is lifted, the locking block 33 is pressed against the roller 2 to generate a strong friction force. The position sensor 4 detects that the locking block 33 has reached the locking position, and the four-wheel alignment device can get on or off the vehicle; the locking block 33 is separated from the roller 2, and the roller 2 can rotate.
[0023] The above shows and describes the basic principle, main features and advantages of the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A roller locking mechanism on a four-wheel alignment device, comprising a roller bracket (1), characterized in that: Two rollers (2) are rotatably mounted between the two side plates of the roller bracket (1); a locking assembly (3) is mounted on the top surface of the bottom plate of the roller bracket (1); the two locking assemblies (3) are located at the gap between the two rollers (2); the locking assembly (3) comprises a cylinder (31), a locking block pad (32), a locking block (33) and a locking block pressure plate (34); the cylinder (31) is fixedly mounted on the top surface of the bottom plate of the roller bracket (1); a locking block pad (32) is mounted on the lifting end of the cylinder (31); the top of the locking block pad (32) is fixed by a fixing bolt (35) A locking block (33) is fixedly installed, the locking block pad (32) is a "convex" block, the bottom surface of the locking block (33) is provided with a slot, the top of the locking block pad (32) is stuck in the slot on the bottom surface of the locking block (33), threaded holes are provided on the locking block pad (32) and the locking block (33), a locking block pressure plate (34) with two threaded holes is placed on the top surface of the locking block (33), and the fixing bolts (35) are correspondingly connected in the threaded holes of the locking block pad (32), the locking block (33) and the locking block pressure plate (34), and a position sensor (4) is installed on the top surface of the bottom plate of the roller bracket (1).
2. The roller locking mechanism on the four-wheel alignment device according to claim 1, characterized in that: The two side surfaces of the locking block (33) are inclined surfaces, and the inclined surfaces are processed with arc surfaces that completely fit the roller (2).
3. The roller locking mechanism on the four-wheel alignment device according to claim 1, characterized in that: The bottom surface of the locking block pad (32) is provided with a groove, and a clamping block adapted to the groove of the locking block pad (32) is fixedly mounted on the lifting end of the cylinder (31), and the clamping block is clamped in the groove of the locking block pad (32).
4. The roller locking mechanism on the four-wheel alignment device according to claim 1, characterized in that: An L-shaped plate is installed on the top of the locking block pressure plate (34) via a fixing bolt (35), and is used for the position sensor (4) to receive the lifting height of the cylinder (31).
5. The roller locking mechanism on the four-wheel alignment device according to claim 1, characterized in that: The position sensor (4) is installed at the bottom of the bottom plate of the roller support (1) via a right-angle plate. A strip groove is provided on the vertical surface between the right-angle plate and the bottom plate of the roller support (1). The position sensor (4) is installed horizontally in the strip groove.