Inner gear ring testing fixture

Abstract

The utility model relates to an inner gear ring detection tool, and relates to the field of gear detection, the inner gear ring detection tool comprises a detection table, a driving gear rotatably connected to the detection table and an abutting assembly slidably connected to the detection table, a detection station allowing an inner gear ring to be clamped therein is arranged between the abutting assembly and the driving gear, and the abutting assembly abuts against the inner gear ring to enable the inner gear ring to be engaged with the driving gear. And meshing paper is placed on the detection table and is used for being clamped into the meshing position between the driving gear and the inner gear ring. Overload or potential areas can be judged in a money-saving manner according to the distribution and color of the coating on the meshing paper, so that more intuitive observation in detection is facilitated, and a detection result can be conveniently obtained.

Description

Technical fields:

[0001] This utility model belongs to the technical field of gear inspection, and specifically refers to an internal gear ring inspection tool. Background technology:

[0002] During the production process, after internal machining, it is necessary to inspect the contact state and load distribution uniformity during the meshing of the internal gear ring. The traditional method of contact spot detection involves coating the drive gear with blue / red lead paint, rotating it 3-5 times after meshing, and then observing the imprint on the tooth surface of the internal gear ring. Directly observing the distribution of the paint on the internal gear ring with the naked eye is not intuitive enough and needs improvement. Summary of the Invention:

[0003] The purpose of this utility model is to provide an internal gear ring inspection tool to solve the technical problems mentioned in the background art.

[0004] This utility model is implemented as follows:

[0005] An internal gear ring inspection fixture includes an inspection table, a drive gear rotatably connected to the inspection table, and a clamping assembly slidably connected to the inspection table. A testing station for inserting the internal gear ring is provided between the clamping assembly and the drive gear. The clamping assembly clamps the internal gear ring to make the internal gear ring mesh with the drive gear. A meshing paper is placed on the inspection table for inserting into the meshing point between the drive gear and the internal gear ring.

[0006] By adopting the above technical solution, during the testing process, coating is applied to the surface of the drive gear, and the internal gear ring to be tested is placed on the testing table. The drive gear is located inside the internal gear ring, and the clamping component is outside the internal gear ring. The clamping component moves towards the drive gear, causing the internal gear ring and the drive gear to mesh. The meshing paper is inserted between the drive gear and the internal gear ring, allowing the coating to be printed on the meshing paper. The drive gear rotates, driving the internal gear ring to rotate. After the drive gear drives the internal gear ring to rotate 3-5 times, the clamping component is moved away from the drive gear, and the meshing paper is removed. The distribution and color of the coating on the meshing paper can be used to determine overload or potential areas, making the testing more intuitive and easier to obtain test results. This also helps to reduce the amount of coating on the internal gear ring.

[0007] Preferably, the driving gear includes a mounting part rotatably connected to the testing table and a meshing part provided on the mounting part. The meshing part has a polygonal cross-section in the horizontal direction and a limiting groove for the mounting part to be engaged. The meshing part is used to mesh with an internal gear ring. The testing table is provided with a rotary motor that drives the mounting part to rotate.

[0008] By adopting the above technical solution, when different models of internal gear rings need to be tested, the meshing part can be removed from the mounting part and replaced with a meshing part corresponding to the internal gear ring to be tested, which is convenient for adapting to the testing of different models of internal gear rings.

[0009] Preferably, the testing platform includes a platform body, a lifting platform that is slidably connected to the platform body, a drive gear that is rotatably connected to the lifting platform, a table surface on the platform body, an opening on the table surface for the drive gear to move, a clamping assembly on the platform body and above the table surface, a spraying machine on the platform body, the spraying machine being used to apply paint to the surface of the drive gear, the spraying machine being located below the table surface, and when the lifting platform moves to its lowest point, the spraying machine facing the drive gear.

[0010] By adopting the above technical solution, after the internal gear ring is inspected, the clamping component releases the internal gear ring, and after the internal gear ring and meshing paper are removed, the lifting cylinder drives the meshing part to descend to the spraying machine, where the spraying machine replenishes the paint on the surface of the meshing part. Replenishing the paint on the drive gear below the table helps reduce contamination of the table surface.

[0011] Preferably, the lifting platform is located below the platform surface.

[0012] By adopting the above technical solution, it is beneficial to reduce the amount of paint on the lifting platform that gets onto the internal gear ring during the testing process.

[0013] Preferably, the table surface is machined to form a smooth surface.

[0014] By adopting the above technical solution, it is beneficial to reduce the friction experienced when the drive gear drives the internal gear ring to rotate.

[0015] Preferably, the clamping assembly includes a push block slidably connected to the detection table and a positioning head rotatably connected to the push block. The rotation axis of the positioning head is parallel to the rotation axis of the drive gear. The positioning head is used to abut against the internal gear ring. The detection table is provided with a telescopic cylinder, which drives the push block to move.

[0016] By adopting the above technical solution, during the actual testing process, when the internal gear ring is placed between the driving gear and the positioning head, the telescopic cylinder drives the push block to approach the driving gear, and the positioning head abuts against the internal gear ring. After the test is completed, the telescopic cylinder drives the push block to move away from the driving gear, making it easier to remove the internal gear ring. The contact between the rotating positioning head and the internal gear ring helps to reduce friction between the internal gear ring and the positioning head when the driving gear drives the internal gear ring to rotate.

[0017] Preferably, the push block includes a sliding part one slidably connected to the detection table and a sliding part two slidably connected to the sliding part one. The positioning head is rotatably connected to the sliding part two. A spring is provided on the sliding part one, and the spring presses against the sliding part two, causing the sliding part two to tend to move away from the sliding part one.

[0018] By adopting the above technical solution, sliding part one and sliding part two are connected by a spring, which facilitates the installation of internal gear rings of different thicknesses.

[0019] Preferably, a pressure sensor is provided between the sliding part and the spring, and the pressure sensor is used to detect pressure changes at the spring.

[0020] By adopting the above technical solution, during the testing process, the rotation of the drive gear drives the internal gear ring to rotate. During the rotation, the positioning head abuts against the limit of the internal gear ring. By installing a pressure sensor, it is convenient to detect the tooth width of the internal gear ring.

[0021] The outstanding advantages of this utility model compared to the prior art are:

[0022] 1. This utility model determines overload or potential areas based on the distribution and color of the coating on the meshing paper, which is convenient for detection and more intuitive observation, and facilitates obtaining detection results, which helps to reduce the amount of coating on the inner tooth ring.

[0023] 2. This utility model removes the meshing part from the mounting part and replaces it with a meshing part corresponding to the internal gear ring to be tested, which is convenient for adapting to the testing of different models of internal gear rings;

[0024] 3. This utility model facilitates the detection of the tooth width of the internal gear ring by installing a pressure sensor. Attached image description:

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 for Figure 1 The enlarged view of section A mainly shows the structure of the clamping component;

[0027] Figure 3 This is a partial sectional view of the present invention at the platform, mainly showing the internal structure of the mounting cavity;

[0028] Figure 4 This is an exploded view of a portion of the drive gear of this utility model, mainly showing the structure of the drive gear.

[0029] Instruction manual drawing reference numerals: 1. Inspection table; 11. Table body; 111. Table surface; 1111. Smooth surface; 1112. Clearance opening; 112. Lifting cylinder; 121. Rotary motor; 12. Lifting platform; 13. Inspection station; 14. Engaging paper; 15. Telescopic cylinder; 16. Mounting cavity; 2. Clamping assembly; 21. Push block; 211. Sliding part one; 2111. Spring; 2112. Pressure sensor; 212. Sliding part two; 22. Positioning head; 3. Drive gear; 31. Mounting part; 32. Engaging part; 321. Limiting groove; 4. Sprayer. Detailed implementation method:

[0030] The present invention will be further described below with reference to specific embodiments.

[0031] This application provides an internal gear ring inspection tool, see [link to relevant documentation]. Figure 1 and Figure 2 The system includes a testing table 1, a clamping assembly 2, and a drive gear 3. The testing table 1 includes a table body 11 and a lifting platform 12 that is slidably connected to the table body 11. A table surface 111 is machined on the table body 11 and coated with a smooth surface 1111. The clamping assembly 2 is located above the table surface 111 and is slidably connected to the table body 11. The drive gear 3 is rotatably connected to the lifting platform 12. The clamping assembly 2 slides closer to or away from the rotation axis of the drive gear 3. A testing station 13 is provided between the drive gear 3 and the clamping assembly 2 for inserting an internal gear ring. A meshing paper 14 is also placed on the testing table 1 for engaging between the internal gear ring and the drive gear 3.

[0032] See Figure 1 and Figure 3 A spraying machine 4 for spraying paint onto the surface of the drive gear 3 is fixed on the platform 11.

[0033] In the actual testing process, the spraying machine 4 sprays paint onto the surface of the drive gear 3. The inner gear ring to be tested is placed on the platform 11, with the drive gear 3 located inside the inner gear ring and the clamping component 2 located outside the inner gear ring. The meshing paper 14 is located between the drive gear 3 and the inner gear ring, inside the inner gear ring. The clamping component 2 moves to mesh the inner gear ring and the drive gear 3. The drive gear 3 rotates, causing the inner gear ring to rotate. The paint on the drive gear 3 is printed on the meshing paper 14. After the drive gear 3 drives the retaining ring to rotate 3-5 times, the clamping component 2 is moved away, and the meshing paper 14 and the retaining ring can be removed.

[0034] See Figure 1 and Figure 2The clamping assembly 2 includes a push block 21 and a positioning head 22. The push block 21 includes a sliding part 211 and a sliding part 212. The sliding part 211 is slidably connected to the platform 11. The distribution direction of the sliding part 211 and the sliding part 212 is parallel to the sliding direction of the sliding part 211. The sliding part 212 is located on the side of the sliding part 211 closer to the drive gear 3. The sliding part 212 is slidably connected to the sliding part 211. The second sliding part 212 slides closer to or further away from the first sliding part 211. A spring 2111 is fixed on the first sliding part 211. The extension and contraction direction of the spring 2111 is parallel to the sliding direction of the first sliding part 211. The opposite ends of the spring 2111 are fixedly connected to the first sliding part 211 and the second sliding part 212, respectively. The spring 2111 presses against the second sliding part 212, causing the second sliding part 212 to tend to move away from the first sliding part 211. The positioning head 22 is cylindrical and rotatably connected to the second sliding part 212. The rotation axis of the positioning head 22 is parallel to the rotation axis of the drive gear 3 and is vertically arranged. The positioning head 22 protrudes from one end of the second sliding part 212 and is used to press against the internal gear ring.

[0035] See Figure 1 and Figure 2 A telescopic cylinder 15 is fixed on the platform 11. The telescopic cylinder 15 is located on the side of the sliding part 211 away from the drive gear 3. The output shaft of the telescopic cylinder 15 is fixedly connected to the sliding part 211. The telescopic cylinder 15 drives the sliding part 211 to move.

[0036] See Figure 1 and Figure 2 A pressure sensor 2112 is fixed on the sliding part 211. The pressure sensor 2112 is located between the sliding part 211 and the spring 2111, and is used to detect pressure changes at the spring 2111. During the detection process, the positioning head 22 on the sliding part 212 presses against the internal gear ring. If the tooth width of the internal gear ring changes during the rotation driven by the drive gear 3, the compression force of the spring 2111 increases, and the pressure sensor 2112 detects pressure fluctuations. The magnitude of the pressure fluctuations detected by the pressure sensor 2112 facilitates the detection of the tooth width of the internal gear ring.

[0037] See Figure 1 and Figure 3The sprayer 4 is located below the table 111. The table 11 has an installation cavity 16 located below the table 111. The sprayer 4 is located inside the installation cavity 16. The lifting platform 12 is slidably connected to the installation cavity 16. The table 111 has a clearance opening 1112, which communicates with the installation cavity 16. The drive gear 3 enters the installation cavity 16 through the clearance opening 1112. A lifting cylinder 112 is fixed on the table 11. The lifting cylinder 112 is located below the lifting platform 12. The output shaft of the lifting cylinder 112 is fixedly connected to the lifting platform 12. When the output shaft of the lifting cylinder 112 retracts and the lifting platform 12 is at its lowest point, the drive gear 3 and the sprayer 4 are at the same height, and the nozzle of the sprayer 4 faces the drive gear 3. A rotary motor 121 is installed on the lifting platform 12. The rotating shaft of the rotary motor 121 is coaxially connected to the drive gear 3. The rotary motor 121 drives the drive gear 3 to rotate. During the process of the sprayer 4 spraying paint, the rotary motor 121 drives the drive gear 3 to rotate, so that the paint is evenly sprayed on the outer circumference of the drive gear 3. When the output shaft of the lifting cylinder 112 extends and the lifting platform 12 is at its highest point, the lifting platform 12 is located below the table surface 111, and the drive gear 3 enters above the table surface 111 through the clearance opening 1112. This reduces the amount of paint adhering to the drive gear 3.

[0038] See Figure 3 and Figure 4 The driving gear 3 includes a mounting part 31 and a meshing part 32. The mounting part 31 is rotatably connected to the lifting platform 12. The rotating motor 121 drives the mounting part 31 to rotate. The horizontal cross-section of the mounting part 31 is polygonal. In this embodiment, the horizontal cross-section of the mounting part 31 is quadrilateral. A limiting groove 321 is provided on the meshing part 32. The shape and size of the horizontal cross-section of the limiting groove 321 are consistent with the shape and size of the horizontal cross-section of the mounting part 31. The limiting groove 321 is located on the side of the meshing part 32 close to the mounting part 31. The center of the limiting groove 321 coincides with the axis of the meshing part 32. The limiting groove 321 is used for the mounting part 31 to be inserted. The mounting part 31 fits against the inner wall of the limiting groove 321 and supports the meshing part 32. The meshing part 32 is used to mesh with the internal gear ring.

[0039] In actual testing, when the internal gear ring to be tested is of a different model, the meshing part 32 is disengaged from the mounting part 31 and a meshing part 32 of the corresponding model of the internal gear ring is installed, which facilitates the replacement of the drive gear 3 and enables the inspection tool to adapt to the testing of different models of internal gear rings.

[0040] The platform 11 is equipped with a control system for controlling the operation of the telescopic cylinder 15, the rotary motor 121, the lifting cylinder 112, and the sprayer 4.

[0041] The implementation principle of the internal gear ring inspection tool in this application embodiment is as follows: During the inspection process, the internal gear ring is driven to rotate by the clamping component 2 and the driving gear 3. As it rotates, the meshing paper 14 is inserted between the internal gear ring and the driving gear 3, so that the paint is printed on the meshing paper 14. After the driving gear 3 drives the meshing ring to rotate 3-5 times, the driving gear 3 stops rotating, the clamping component 2 moves away from the driving gear 3, and the internal gear ring and the meshing paper 14 are removed. The distribution and color depth of the paint on the meshing paper 14 intuitively show the meshing situation between the driving gear 3 and the meshing ring, which facilitates more intuitive observation and makes it easier to obtain inspection results. It also helps to reduce the amount of paint on the internal gear ring.

[0042] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. An inner ring testing tool, characterized by: The device includes a testing platform (1), a drive gear (3) rotatably connected to the testing platform (1), and a clamping assembly (2) slidably connected to the testing platform (1). A testing station (13) for inserting an internal gear ring is provided between the clamping assembly (2) and the drive gear (3). The clamping assembly (2) clamps the internal gear ring so that the internal gear ring meshes with the drive gear (3). A meshing paper (14) is placed on the testing platform (1). The meshing paper (14) is used to insert into the meshing point between the drive gear (3) and the internal gear ring.

2. A ring gear testing fixture according to claim 1, wherein: The drive gear (3) includes a mounting part (31) rotatably connected to the testing table (1) and a meshing part (32) provided on the mounting part (31). The meshing part (32) has a polygonal cross-section in the horizontal direction. A limiting groove (321) is provided on the meshing part (32) for the mounting part (31) to be inserted into. The meshing part (32) is used to mesh with the internal gear ring. A rotary motor (121) is provided on the testing table (1) to drive the mounting part (31) to rotate.

3. A ring gear testing fixture according to claim 2, wherein: The testing platform (1) includes a platform body (11), a lifting platform (12) that is slidably connected to the platform body (11), and a lifting cylinder (112) that drives the lifting platform (12) to move. The mounting part (31) is rotatably connected to the lifting platform (12). The platform body (11) is provided with a table surface (111). The table surface (111) is provided with a clearance opening (1112) for the movement of the drive gear (3). The clamping component (2) is provided on the platform body (11) and located above the table surface (111). The platform body (11) is provided with a sprayer (4). The sprayer (4) is used to apply paint to the surface of the drive gear (3). The sprayer (4) is located below the table surface (111). When the lifting platform (12) moves to the lowest point, the sprayer (4) faces the meshing part (32).

4. A sprocket gear testing fixture according to claim 3, wherein: The lifting platform (12) is located below the platform (111).

5. A sprocket gear testing fixture according to claim 3, wherein: The tabletop (111) has a smooth surface (1111) formed on it.

6. A ring gear tester according to claim 1 wherein: The clamping assembly (2) includes a push block (21) slidably connected to the testing table (1) and a positioning head (22) rotatably connected to the push block (21). The rotation axis of the positioning head (22) is parallel to the rotation axis of the drive gear (3). The positioning head (22) is used to abut against the internal gear ring. The testing table (1) is provided with a telescopic cylinder (15), which drives the push block (21) to move.

7. A ring gear testing fixture according to claim 6, wherein: The push block (21) includes a sliding part one (211) slidably connected to the detection table (1) and a sliding part two (212) slidably connected to the sliding part one (211). The positioning head (22) is rotatably connected to the sliding part two (212). A spring (2111) is provided on the sliding part one (211). The spring (2111) presses against the sliding part two (212) so that the sliding part two (212) tends to move away from the sliding part one (211).

8. A sprocket gear testing tool according to claim 7, wherein: A pressure sensor (2112) is arranged between the sliding part one (211) and the spring (2111), and is used to detect the pressure change at the spring (2111).

Images