Detection tool for self-compensation pressing block of steering engine
By designing the detection tool for self-compensation briquetting of the steering machine, the problem of difficulty in detecting the opening angle of the self-compensation briquetting in the prior art is solved, and the accurate detection of the angle of the self-compensation briquetting is achieved, laying the foundation for subsequent research and data acquisition.
Patent Information
- Application Number
- CN202421905446.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The prior art is difficult to detect and judge the opening angle of the self-compensation briquet, which makes it difficult to identify or have no standards to be based on when noise problems or other problems occur in the steering machine.
A detection tool for self-compensation pressing block of the steering machine is designed, including tool housing, bearing housing, bearing, detection pin, and handle. Through the coordination of detection pin, handle and scale, the detection of the opening angle of the self-compensation plate is realized.
Through this testing tool, the opening angle of the self-compensation sheet can be accurately detected, laying the foundation for subsequent research on the self-compensation briquette problem and data acquisition, and improving the understanding and use efficiency of the self-compensation briquette.
Smart Images
Figure CN222964582U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machinery, in particular to a detection tool for a self-compensating pressure block of a steering machine. Background Art
[0002] Compared with ordinary pressure blocks, self-compensation pressure blocks have the function of self-compensation of gaps. When the rack linings are worn, the self-compensation mechanism will automatically move to compensate the gap between the gear rack to avoid the gap between the gear rack being too large and causing switching noise or impact noise. In addition, the existence of the self-compensation function also makes it unnecessary to adjust the gap during the assembly of the steering gear, saving assembly time and cost.
[0003] See also Figure 1 The self-compensation mechanism of the self-compensating pressure block is that the pressure block 3 is meshed with the rack 1, and the self-compensating plate 4 replaces the spring function of the ordinary pressure block. The adjusting nut 5 is tightened to limit the gap between the pressure block 3 and the self-compensating plate 4 and the rack 1. When the rack 1 and the pressure block lining are worn, a gap will appear between the pressure block 3 and the rack 1. At this time, see Figure 2 The upper compensation plate 41 and the lower compensation plate 42 of the self-compensation plate 4 will slide along the wedge-shaped contact surface, that is, the upper compensation plate 41 rotates circumferentially along the lower compensation plate 42, and the thickness between the upper compensation plate 41 and the lower compensation plate 42 becomes larger, pressing the pressure block 3 toward the rack 1, thereby compensating for the gap between the pressure block 3 and the rack 1.
[0004] See also Figure 2 , Figure 3 When the self-compensating sheet 4 is working, the upper compensating sheet 41 and the lower compensating sheet 42 move circumferentially, and the middle hole 43 of the two compensating sheets will have an angle α. This angle is an important parameter for studying the working mechanism of the self-compensating pressure block. The size of the angle cannot be confirmed by human eye observation, nor can it be manually determined whether the self-compensating pressure block is working normally.
[0005] Due to its many advantages, self-compensating pressure blocks have been widely used in steering gears. However, due to the different structures of self-compensating pressure blocks and ordinary pressure blocks, the detection method and control specifications of self-compensating pressure blocks are not complete, resulting in the problem that when products using self-compensating pressure blocks have noise problems or other problems in this position, it is difficult to find out or there is no standard to follow.
[0006] Therefore, it is necessary to design a detection tooling for the steering gear self-compensating pressure block to realize the detection of the opening angle of the self-compensating piece, laying the foundation for subsequent research on the problems of the self-compensating pressure block and the data collection of the self-compensating pressure block. Summary of the invention
[0007] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a detection tooling for a steering gear self-compensation pressing block, so as to realize the detection of the opening angle of the self-compensation piece and lay a foundation for subsequent research on problems of the self-compensation pressing block and data collection of the self-compensation pressing block.
[0008] In order to achieve the above purpose, a detection tooling for a steering gear self-compensation pressing block of the present utility model includes a tooling housing, a bearing housing, a bearing, a detection pin, and a handle. The bottom of the tooling housing has a profiling interface matching the upper end surface of the adjusting nut. A circle of scales is provided at the top of the tooling housing. An installation hole is provided in the center of the tooling housing. The bearing housing is assembled in the installation hole, and the bearing housing is slidably connected to the installation hole. The outer ring of the bearing is in interference fit with the bearing housing. The inner ring of the bearing is sleeved on the outer side of the middle part of the detection pin. The bottom of the detection pin has a profiling pin structure matching the shape of the middle hole of the self-compensation piece. A handle is installed at the top of the detection pin, and the end of the handle extends towards the scale direction.
[0009] A hexagonal boss is provided in the center of the upper end surface of the adjusting nut. A circle of grooves is provided outside the hexagonal boss. The profiling interface of the tooling housing has a hexagonal inner hole. The end of the profiling interface is inserted into the groove, and the hexagonal boss is inserted into the hexagonal inner hole.
[0010] Vertical stripes are provided on the outer surface of the tooling housing.
[0011] The outer diameter of the bearing matches the inner diameter of the bearing housing.
[0012] A boss is provided at the top of the detection pin.
[0013] An electronic interface is provided at the top of the detection pin.
[0014] The electronic interface is connected to an angle sensor or a torque sensor.
[0015] Compared with the prior art, the present utility model designs a detection tooling for a steering gear self-compensation pressing block. Through the cooperation of the detection pin, the handle, and the scale, the detection of the opening angle of the self-compensation piece is realized, laying a foundation for subsequent research on problems of the self-compensation pressing block and data collection of the self-compensation pressing block. Description of the Drawings
[0016] Figure 1 It is a schematic diagram of the self-compensation mechanism of the self-compensation pressing block.
[0017] Figure 2 It is an axonometric view of the self-compensation piece in the uncompensated state.
[0018] Figure 3 It is a front view of the self-compensation piece in the compensated state.
[0019] Figure 4 It is an axonometric view of the present utility model.
[0020] Figure 5 This is a cross-sectional view of the present utility model.
[0021] Figure 6 This is a cross-sectional view of the present utility model in the working state.
[0022] Figure 7 This is a schematic diagram of the detection pin of the present utility model being blocked by the lower compensation piece.
[0023] Figure 8 This is a schematic diagram of the detection pin of the present utility model coming into contact with the upper compensation piece. Detailed implementation manners
[0024] The present utility model will be further described below in conjunction with the accompanying drawings.
[0025] See Figure 4 、 Figure 5 、 Figure 6 The present utility model is a detection tool for a self-compensating pressing block of a steering gear, including a tooling housing 21, a bearing housing 22, a bearing 23, a detection pin 24, and a handle 25. The bottom of the tooling housing 21 has a profiling interface matching the upper end face of the adjusting nut 5. A circle of scales 212 is provided at the top of the tooling housing 21. An installation hole is provided in the center of the tooling housing 21. The bearing housing 22 is assembled in the installation hole and is slidably connected to the installation hole. The outer ring of the bearing 23 is in interference fit with the bearing housing 22. The inner ring of the bearing 23 is sleeved on the outer side of the middle part of the detection pin 24. The bottom of the detection pin 24 has a profiling pin structure 241 matching the shape of the middle hole 43 of the self-compensating piece 4. A handle 25 is installed at the top of the detection pin 24, and the end of the handle 25 extends towards the scales 212.
[0026] A hexagonal boss 51 is provided at the center of the upper end face of the adjusting nut 5. A circle of grooves 52 is provided outside the hexagonal boss 51. The profiling interface of the tooling housing 21 has a hexagonal inner hole. The end of the profiling interface is inserted into the groove 52, and the hexagonal boss 51 is inserted into the hexagonal inner hole to enable the tooling housing 21 to be stably matched with the adjusting nut 5.
[0027] Vertical stripes 211 are provided on the outer surface of the tooling housing 21 to ensure that the tooling can be stably fixed to the steering gear by hand or other tooling during the test.
[0028] The outer diameter of the bearing 23 matches the inner diameter of the bearing housing 22 to facilitate the installation of the bearing 23, thereby realizing the free rotation of the detection pin 24. At the same time, the detection pin 24 can drive the bearing 23 and the bearing housing 22 to slide up and down along the installation hole of the tooling housing 21.
[0029] A boss 242 is provided at the top of the detection pin 24 to prevent the handle 25 from falling off.
[0030] An electronic interface 243 is provided at the top of the detection pin 24, and the electronic interface 243 is connected to an angle sensor or a torque sensor to detect the twisting angle of the detection pin 24 and the torque required to move the self-compensating sheet, thereby completing data collection and supplementing the research on the self-compensating pressure block.
[0031] When the utility model detects the opening angle of the self-compensating sheet 4, the tool housing 21 and the adjusting nut 5 are first assembled, and then the detection pin 24 is moved up and down. If the self-compensating sheet 4 is in the open state, the upper compensation sheet 41 and the lower compensation sheet 42 are misaligned, and the profiling pin structure 241 of the detection pin 24 can pass through the middle hole 43 of the upper compensation sheet 41, but will be blocked by the lower compensation sheet 42. Figure 7 shown.
[0032] Next, the handle 25 is rotated from the initial position, and the contour pin structure 241 of the detection pin 24 rotates together with the handle 25 until it stops when it contacts the upper compensation sheet 41. Figure 8 As shown, at this time, by reading the scale 212 on the tool housing 21 corresponding to the handle 25, the opening angle of the self-compensation sheet 4 can be known.
[0033] If the electronic interface 243 is connected to an angle sensor or a torque sensor, the handle 25 can be turned to check the value of the torque sensor, and the magnitude of the axial force on the self-compensating sheet can be calculated. The opening angle of the self-compensating sheet and the axial force on the self-compensating sheet in the working state are critical to the study of the working mechanism of the self-compensating block. The use of this tooling is more powerful for the detection and data collection of the self-compensating block and the use of the self-compensating block.
[0034] The utility model designs a detection tooling for the steering gear self-compensating pressure block, which realizes the detection of the opening angle of the self-compensating piece through the cooperation of the detection pin, the handle and the scale, laying a foundation for the subsequent problem research on the self-compensating pressure block and the self-compensating pressure block data collection.
Claims
1. A detection tool for a steering gear self-compensating pressure block, comprising a tool housing (21), a bearing housing (22), a bearing (23), a detection pin (24), and a handle (25), characterized in that: The bottom of the tool housing (21) has a contoured interface matching the upper end surface of the adjustment nut (5); the top of the tool housing (21) is provided with a circle of scales (212); a mounting hole is provided in the center of the tool housing (21); the bearing housing (22) is assembled in the mounting hole, and the bearing housing (22) is slidably connected to the mounting hole; the outer ring of the bearing (23) is interference fit with the bearing housing (22); the inner ring of the bearing (23) is sleeved on the outside of the middle part of the detection pin (24); the bottom of the detection pin (24) has a contoured pin structure (241) matching the shape of the middle hole (43) of the self-compensating sheet (4); a handle (25) is installed on the top of the detection pin (24); the end of the handle (25) extends in the direction of the scale (212).
2. The detection tool for the steering gear self-compensation pressing block according to claim 1 is characterized in that: The adjusting nut (5) has a hexagonal boss (51) at the center of the upper end surface, and a circle of grooves (52) are arranged outside the hexagonal boss (51). The contoured interface of the tool housing (21) has a hexagonal inner hole, the end of the contoured interface is inserted into the groove (52), and the hexagonal boss (51) is inserted into the hexagonal inner hole.
3. The detection tool for the steering gear self-compensation pressing block according to claim 1 is characterized in that: The outer surface of the tool housing (21) is provided with vertical stripes (211).
4. The detection tool for the steering gear self-compensation pressing block according to claim 1 is characterized in that: The outer diameter of the bearing (23) matches the inner diameter of the bearing housing (22).
5. The detection tool for the steering gear self-compensation pressing block according to claim 1 is characterized in that: A boss (242) is provided on the top of the detection pin (24).
6. The detection tool for the steering gear self-compensation pressing block according to claim 1 is characterized in that: An electronic interface (243) is provided on the top of the detection pin (24).
7. The detection tool for the steering gear self-compensation pressing block according to claim 6 is characterized in that: The electronic interface (243) is connected to an angle sensor or a torque sensor.