Differential main reducer assembly selection gasket auxiliary device
Patent Information
- Application Number
- CN202521930265.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-08
AI Technical Summary
[0004]本实用新型要提供一种差速器主减器合装选垫片辅助装置，解决现有技术中手工选取方式全部依赖于操作人员的经验进行垫片选取而导致容易出现垫片选取错误的问题
[0014]Compared with the prior art, this utility model has the following beneficial effects: In this application, firstly, a main reducer positioning fixture is set up to place the main reducer; then, a main reducer measuring actuator is set up next to the main reducer positioning fixture to measure the shoulder dimension 'a' of the main reducer; next, a differential positioning fixture is set up to place the differential, and the differential measuring actuator measures the outer ring spacing 'b' of the differential bearing; then, a shim storage device is set up to store shims of the same type on a storage rod; finally, the control box can calculate which type of shim is needed based on the shoulder dimension 'a' of the main reducer and the outer ring spacing 'b' of the differential bearing (the calculation method is prior art, this application only protects the structural design), and indicate which storage rod the shim of that type is stored on (there are multiple ways to indicate this). The system can either display the storage rod markings directly on the screen, or install indicator lights at the storage rods. These lights illuminate under the control of the control box, indicating which storage rod contains the appropriate shim type. When using the indicator light, the storage rod is a cylindrical structure with the indicator light installed inside. The anode of the indicator light is connected to the positive terminal of the power supply, the cathode is connected to the collector of an NPN transistor, the emitter of the NPN transistor is grounded, and the base is connected to the output of the control box. A high-level output from the control box closes the NPN transistor, illuminating the indicator light; a low-level output disconnects the transistor, de-energizing the indicator light, thus preventing it from illuminating. This allows the indicator light to prompt the selection of the shim on the appropriate storage rod under control. This eliminates the need for manual measurement of the main reducer shoulder dimension 'a' and the differential bearing outer ring clearance 'b', as well as manual calculation of the required shim type. It improves measurement and calculation efficiency, avoids human error in manual measurement and calculation, and ensures the reliability of the shim selection prompt.
Smart Images
Figure CN224642821U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of differential main reducer assembly, specifically to an auxiliary device for selecting shims during differential main reducer assembly. Background Technology
[0002] During the assembly of the differential and the final drive, the clearance accuracy between them is crucial. Too small a clearance will lead to assembly difficulties, while too large a clearance will affect the gear meshing effect between the differential and the final drive. Therefore, shims of different thicknesses must be selected according to the product characteristics during assembly, and the shims are clamped between the differential and the final drive.
[0003] In the prior art, the gasket is selected manually, such as... Figure 1 as well as Figure 2 As shown, the main reducer includes a shoulder and an outer ring. The shoulder is located at the top of the main reducer, and an outer ring surrounds the shoulder. The outer ring has at least four through holes. One side of the shoulder is recessed to form an arc-shaped groove, and the other side forms an arc-shaped step. Manual selection requires measuring the shoulder dimension 'a' (where 'a' is the distance between the arc-shaped groove and the arc-shaped step) and the differential bearing outer ring spacing 'b'. The shim size is then calculated manually based on 'a' and 'b'. This manual selection method relies entirely on the operator's experience, which can easily lead to unsuitable shims, requiring removal and reinstallation, resulting in low efficiency in the entire assembly process of the differential and main reducer. Utility Model Content
[0004] This utility model provides an auxiliary device for selecting shims during the assembly of differential main reducer, which solves the problem that the existing manual selection method relies entirely on the operator's experience to select shims, leading to easy errors in shim selection.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model discloses an auxiliary device for selecting shims during the assembly of a differential main reducer, comprising: a main reducer measuring device, a differential measuring device, a shim storage device, a control box, and a display screen; the main reducer measuring device includes: a main reducer positioning fixture and a main reducer measuring actuator, the main reducer positioning fixture being used to support and position the main reducer, and the main reducer measuring actuator being installed next to the main reducer positioning fixture for measuring the shoulder dimension 'a' of the main reducer; the differential measuring device is installed next to the main reducer measuring device, and the differential measuring device includes: a differential positioning fixture and... A differential measuring actuator is included. A differential positioning fixture is used to support and position the differential. The differential measuring actuator is installed next to the differential positioning fixture and is used to measure the outer ring clearance b of the differential bearing. A shim storage device is installed next to the differential measuring device. The shim storage device includes a storage base and storage rods. At least two storage rods are installed on the storage base, and circular shims are stored on the storage rods. The outputs of the main reducer measuring device, the differential measuring device, and the shim measuring device are all electrically connected to a control box. The control box is electrically connected to a display screen.
[0007] Preferably, the main reducer measuring device, differential measuring device, shim measuring device, and shim storage device are all installed on the operating table.
[0008] Preferably, the main reducer positioning fixture includes: a main reducer base and at least three support columns. At least three support columns are erected on the main reducer base, and each support column extends into a through hole in the main reducer. The support columns support the outer ring of the main reducer.
[0009] Preferably, the main reducer measurement actuator includes: a first lifting drive assembly, a first lifting seat, a positioning block, a first clamping block, a first distance sensor, and a horizontal drive assembly. The first lifting drive assembly is installed above the main reducer positioning fixture. The output end of the first lifting drive assembly is connected to the first lifting seat. The positioning block and the horizontal drive assembly are installed on the first lifting seat. The positioning block extends into the arc-shaped groove in the main reducer. The output end of the horizontal drive assembly is connected to the first clamping block located next to the positioning block. The horizontal drive assembly is used to drive the first clamping block to move relative to the first lifting seat in the X direction. The first clamping block is used to clamp the arc-shaped step in the main reducer. A first distance sensor is installed at the first clamping block. The first distance sensor is used to detect the distance between the positioning block and the first clamping block.
[0010] Preferably, the differential measurement actuator includes: a second lifting drive assembly, a second lifting seat, a second clamping block, a clamping spring, and a second distance sensor. The second lifting drive assembly is mounted on top of the differential positioning fixture, and the output end of the second lifting drive assembly is connected to the second lifting seat. A second clamping block that can be lifted and lowered is mounted below the second lifting seat. A clamping spring is installed between the second clamping block and the second lifting seat. The second clamping block is used to clamp the differential located on the differential positioning fixture, and the second distance sensor is used to measure the distance between the second clamping block and the second lifting seat.
[0011] Preferably, each storage rod is marked with a mark to indicate the gasket model.
[0012] Preferably, a shim measuring device is installed between the differential measuring device and the shim storage device, the shim measuring device being used to measure the thickness and outer diameter of the shim removed from the storage rod.
[0013] Preferably, the gasket measuring device includes: a third lifting drive assembly, a lifting cover, an annular part placement fixture, and a third distance sensor. The annular part placement fixture positions the gasket. The third lifting drive assembly is installed above the annular part placement fixture. The output end of the third lifting drive assembly is connected to the lifting cover. The third distance sensor is installed on the lifting cover. The third distance sensor is used to detect the distance between the outer wall of the gasket and the inner wall of the lifting cover.
[0014] Compared with the prior art, this utility model has the following beneficial effects: In this application, firstly, a main reducer positioning fixture is set up to place the main reducer; then, a main reducer measuring actuator is set up next to the main reducer positioning fixture to measure the shoulder dimension 'a' of the main reducer; next, a differential positioning fixture is set up to place the differential, and the differential measuring actuator measures the outer ring spacing 'b' of the differential bearing; then, a shim storage device is set up to store shims of the same type on a storage rod; finally, the control box can calculate which type of shim is needed based on the shoulder dimension 'a' of the main reducer and the outer ring spacing 'b' of the differential bearing (the calculation method is prior art, this application only protects the structural design), and indicate which storage rod the shim of that type is stored on (there are multiple ways to indicate this). The system can either display the storage rod markings directly on the screen, or install indicator lights at the storage rods. These lights illuminate under the control of the control box, indicating which storage rod contains the appropriate shim type. When using the indicator light, the storage rod is a cylindrical structure with the indicator light installed inside. The anode of the indicator light is connected to the positive terminal of the power supply, the cathode is connected to the collector of an NPN transistor, the emitter of the NPN transistor is grounded, and the base is connected to the output of the control box. A high-level output from the control box closes the NPN transistor, illuminating the indicator light; a low-level output disconnects the transistor, de-energizing the indicator light, thus preventing it from illuminating. This allows the indicator light to prompt the selection of the shim on the appropriate storage rod under control. This eliminates the need for manual measurement of the main reducer shoulder dimension 'a' and the differential bearing outer ring clearance 'b', as well as manual calculation of the required shim type. It improves measurement and calculation efficiency, avoids human error in manual measurement and calculation, and ensures the reliability of the shim selection prompt.
[0015] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description
[0016] Figure 1 A schematic diagram of the main reducer.
[0017] Figure 2 This is a schematic diagram of the differential.
[0018] Figure 3 A schematic diagram of the auxiliary device for selecting shims when assembling the differential main reducer.
[0019] Figure 4 A schematic diagram of the main reducer measuring device.
[0020] Figure 5 This is a schematic diagram of the differential measuring device.
[0021] Figure 6 This is a schematic diagram of the gasket measuring device.
[0022] Reference numerals: Main reducer measuring device 1, main reducer positioning fixture 11, main reducer base 111, support column 112, main reducer measuring actuator 12, first lifting drive assembly 121, first lifting seat 122, positioning block 123, first clamping block 124, horizontal drive assembly 126, differential measuring device 2, differential positioning fixture 21, differential measuring actuator 22, second lifting seat 222, second clamping block 223, clamping spring 224, shim storage device 3, storage seat 31, storage rod 32, shim measuring device 4, third lifting drive assembly 40, lifting cover 41, annular part placement fixture 42, display screen 5, operating table 6, main reducer 7, shoulder 71, outer ring 72, arc groove 73, arc step 74. Detailed Implementation
[0023] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments:
[0024] like Figures 1 to 3 As shown, this utility model discloses an auxiliary device for selecting shims during the assembly of a differential main reducer, comprising: a main reducer measuring device 1, a differential measuring device 2, a shim storage device 3, a control box, and a display screen 5; the main reducer measuring device 1 includes: a main reducer positioning fixture 11 and a main reducer measuring actuator 12, the main reducer positioning fixture 11 being used to support and position the main reducer, and the main reducer measuring actuator 12 being installed next to the main reducer positioning fixture 11, the main reducer measuring actuator 12 being used to measure the dimension a of the shoulder 71 of the main reducer 7; the differential measuring device 2 is installed next to the main reducer measuring device 1, the differential measuring device 2 including: a differential positioning fixture 21 and... A differential measuring actuator 22 and a differential positioning fixture 21 are used to support and position the differential. The differential measuring actuator 22 is installed next to the differential positioning fixture 21 and is used to measure the outer ring clearance b of the differential bearing. A shim storage device 3 is installed next to the differential measuring device 2. The shim storage device 3 includes a storage base 31 and a storage rod 32. At least two storage rods 32 are installed on the storage base 31 and the storage rods 32 store shims with a circular structure. The output ends of the main reducer measuring device 1, the differential measuring device 2, and the shim measuring device 4 are all electrically connected to the control box. The control box is electrically connected to the display screen 5.
[0025] In this application, the main reducer measuring device 1, the differential measuring device 2, the shim measuring device 4, and the shim storage device 3 are all mounted on the operating platform 6. The operating platform 6 allows the main reducer measuring device 1, the differential measuring device 2, the shim measuring device 4, and the shim storage device 3 to be on the same platform, which is convenient for operators to operate.
[0026] like Figure 4 As shown, the main reducer positioning fixture 11 includes a main reducer base 111 and at least three support columns 112. At least three support columns 112 stand on the main reducer base 111, and each support column 112 extends into a through hole in the main reducer, supporting the outer ring 72 within the main reducer. Because the bottom of the main reducer is uneven, at least three support columns 112 are used to support the outer ring 72. Each support column 112 has a protrusion at its top, which inserts into the through hole, serving to position the main reducer and thus providing positioning support.
[0027] In this application, the main reducer measurement actuator 12 includes: a first lifting drive assembly 121, a first lifting seat 122, a positioning block 123, a first clamping block 124, a first distance sensor, and a horizontal drive assembly 126. The first lifting drive assembly 121 is installed above the main reducer positioning fixture 11. The output end of the first lifting drive assembly 121 is connected to the first lifting seat 122. The positioning block 123 and the horizontal drive assembly 126 are installed on the first lifting seat 122. The positioning block 123 extends into the arc-shaped groove 73 in the main reducer. The output end of the horizontal drive assembly 126 is connected to the first clamping block 124 located next to the positioning block 123. The horizontal drive assembly 126 is used to drive the first clamping block 124 to move relative to the first lifting seat 122 in the X direction. The first clamping block 124 is used to press the arc-shaped step 74 in the main reducer. A first distance sensor is installed at the first clamping block 124. The first distance sensor is used to detect the distance between the positioning block 123 and the first clamping block 124. The positioning block 123 extends into the arc-shaped groove 73 in the main reducer under the drive of the first lifting drive assembly 121. Three pressing parts are formed on the first pressing block 124. Under the drive of the horizontal drive assembly 126, the three pressing parts on the first pressing block 124 press the arc-shaped step 74, thereby positioning the distance between the arc-shaped step 74 and the arc-shaped groove 73. At this time, the first distance sensor detects the distance between the positioning block 123 and the first pressing block 124, and can obtain the shoulder 71 dimension a of the main reducer 7 (a is the distance between the arc-shaped grooves 73).
[0028] like Figure 5As shown, the differential measurement actuator 22 includes: a second lifting drive assembly, a second lifting seat 222, a second clamping block 223, a clamping spring 224, and a second distance sensor. The second lifting drive assembly is mounted above the differential positioning fixture 21, and its output end is connected to the second lifting seat 222. A second clamping block 223 capable of lifting is mounted below the second lifting seat 222. A clamping spring 224 is installed between the second clamping block 223 and the second lifting seat 222. The second clamping block 223 is used to clamp the differential located on the differential positioning fixture 21. The second distance sensor is used to measure the distance between the second clamping block 223 and the second lifting seat 222. The second lifting drive assembly is a cylinder. The control box knows the stroke of the second lifting drive assembly. With the differential positioning fixture 21 in a fixed position, the second distance sensor detects the distance between the second clamping block 223 and the second lifting seat 222, thus determining the differential bearing outer ring spacing b (i.e., the differential height).
[0029] Each storage lever 32 has a marking to indicate the gasket model. This makes it easy to identify which model of gasket is stored at storage lever 32.
[0030] like Figure 3 as well as Figure 6 As shown, a shim measuring device 4 is installed between the differential measuring device 2 and the shim storage device 3. The shim measuring device 4 is used to measure the thickness and outer diameter of the shim removed from the storage rod 32.
[0031] Preferably, the gasket measuring device 4 includes: a third lifting drive assembly 40, a lifting cover 41, an annular component placement fixture 42, and a third distance sensor. The annular component placement fixture 42 positions the gasket. The third lifting drive assembly 40 is mounted on top of the annular component placement fixture 42. The output end of the third lifting drive assembly 40 is connected to the lifting cover 41. The third distance sensor is mounted on the lifting cover 41 and is used to detect the distance between the outer wall of the gasket and the inner wall of the lifting cover 41. The lifting cover 41 is also equipped with a fourth distance sensor, which is used to detect the distance between the top surface of the gasket and the inner wall of the lifting cover 41. When the lifting cover 41 closes the gasket, the stroke control box of the third lifting drive assembly 40 knows that the annular component placement fixture 42 passes through the center of the gasket. The position of the annular component placement fixture 42 is so that the gasket thickness can be measured by the third distance sensor and the outer diameter of the gasket can be measured by the fourth distance sensor.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A differential main reducer assembly shim auxiliary device, characterized in that, include: Main reducer measuring device (1), differential measuring device (2), shim storage device (3), control box and display screen (5); The main reducer measuring device (1) includes: a main reducer positioning fixture (11) and a main reducer measuring actuator (12). The main reducer positioning fixture (11) is used to support and position the main reducer. The main reducer measuring actuator (12) is installed next to the main reducer positioning fixture (11). The main reducer measuring actuator (12) is used to measure the shoulder (71) dimension a of the main reducer (7). A differential measuring device (2) is installed next to the main reducer measuring device (1). The differential measuring device (2) includes: a differential positioning fixture (21) and a differential measuring actuator (22). The differential positioning fixture (21) is used to support and position the differential. The differential measuring actuator (22) is installed next to the differential positioning fixture (21). The differential measuring actuator (22) is used to measure the differential bearing outer ring spacing b. A shim storage device (3) is installed next to the differential measuring device (2). The shim storage device (3) includes a storage seat (31) and a storage rod (32). At least two storage rods (32) are installed on the storage seat (31), and a shim with a circular structure is stored on the storage rod (32). The output terminals of the main reducer measuring device (1), the differential measuring device (2), and the shim measuring device (4) are all electrically connected to the control box, and the control box is electrically connected to the display screen (5).
2. The differential main reducer assembly shim auxiliary device according to claim 1, characterized in that, The main reducer measuring device (1), the differential measuring device (2), the shim measuring device (4), and the shim storage device (3) are all installed on the operating table (6).
3. The differential main reducer assembly shim auxiliary device according to claim 1 or 2, characterized in that, The main reducer positioning fixture (11) includes: a main reducer base (111) and at least three support columns (112). At least three support columns (112) are erected on the main reducer base (111). Each support column (112) extends into the through hole in the main reducer and supports the outer ring (72) in the main reducer.
4. The differential main reducer assembly shim auxiliary device according to claim 3, characterized in that, The main reducer measuring actuator (12) includes: a first lifting drive assembly (121), a first lifting seat (122), a positioning block (123), a first clamping block (124), a first distance sensor, and a horizontal drive assembly (126). The first lifting drive assembly (121) is installed above the main reducer positioning fixture (11). The output end of the first lifting drive assembly (121) is connected to the first lifting seat (122). The positioning block (123) and the horizontal drive assembly (126) are installed on the first lifting seat (122). The positioning block (123) extends... The horizontal drive assembly (126) is connected to the first clamping block (124) located next to the positioning block (123) at the output end of the horizontal drive assembly (126) in the arc-shaped groove (73) of the main reducer. The horizontal drive assembly (126) is used to drive the first clamping block (124) to move relative to the first lifting seat (122) in the X direction. The first clamping block (124) is used to press the arc-shaped step (74) in the main reducer. A first distance sensor is installed at the first clamping block (124). The first distance sensor is used to detect the distance between the positioning block (123) and the first clamping block (124).
5. The differential main reducer assembly shim auxiliary device according to claim 3, characterized in that, The differential measuring actuator (22) includes: a second lifting drive assembly, a second lifting seat (222), a second clamping block (223), a clamping spring (224), and a second distance sensor. The second lifting drive assembly is installed above the differential positioning fixture (21). The output end of the second lifting drive assembly is connected to the second lifting seat (222). The second clamping block (223) that can be lifted is installed below the second lifting seat (222). A clamping spring (224) is installed between the second clamping block (223) and the second lifting seat (222). The second clamping block (223) is used to clamp the differential located on the differential positioning fixture (21). The second distance sensor is used to measure the distance between the second clamping block (223) and the second lifting seat.
6. The differential main reducer assembly shim auxiliary device according to claim 5, characterized in that, Each storage bar (32) is marked with a mark to indicate the gasket model.
7. The differential main reducer assembly shim auxiliary device according to claim 6, characterized in that, A shim measuring device (4) is installed between the differential measuring device (2) and the shim storage device (3). The shim measuring device (4) is used to measure the thickness and outer diameter of the shim removed from the storage rod (32).
8. The differential main reducer assembly shim auxiliary device according to claim 7, characterized in that, The gasket measuring device (4) includes: a third lifting drive assembly (40), a lifting cover (41), an annular part placement fixture (42), and a third distance sensor. The annular part placement fixture (42) positions the gasket. The third lifting drive assembly (40) is installed above the annular part placement fixture (42). The output end of the third lifting drive assembly (40) is connected to the lifting cover (41). The third distance sensor is installed on the lifting cover (41). The third distance sensor is used to detect the distance between the outer wall of the gasket and the inner wall of the lifting cover (41).