A stop device and method for measuring gear meshing clearance

Abstract

This invention relates to the field of tooling design and manufacturing technology, and particularly to a stop device and method for measuring gear meshing clearance. The stop device includes a sleeve, a conical shaft, and a support plate; multiple supports are mounted on the support plate, and the lower end of each support is fitted with a support block for connection with a stud on the end face of a housing; the sleeve is mounted at the center of the lower surface of the support plate; the conical shaft is slidably mounted in the center hole of the sleeve; the lower end of the sleeve is configured as an insertion section for insertion into the inner hole of the gear; multiple slits are evenly distributed axially on the insertion section, dividing the insertion section into multiple elastic segments; the lower end of the conical shaft is configured as a cone, and the upper end of the conical shaft is configured as a threaded section extending from the center hole of the support plate and screwed with a wing nut; when the conical shaft moves upward, the outer conical surface of the cone engages with the inner conical surface of the insertion section and expands the elastic segments.

Description

Technical Field

[0001] This invention relates to the field of tooling design and manufacturing technology, and in particular to a stop device and method for measuring gear meshing clearance. Background Technology

[0002] To measure the meshing clearance between two gears, one gear must be stopped while the other gear is rotated.

[0003] Combination Figure 1 As shown, since the gear 100 that needs to be stopped is installed inside the housing 200, and due to the closed structure of the housing 200, the operator cannot use tools to reach into the inner cavity of the housing 200 to stop the gear 100. The only part that can be stopped is the inner hole of the gear 100.

[0004] The traditional method of stopping the gear 100 is to use pliers to clamp the inner opening of the gear 100 to stop it. However, using pliers to stop the gear has the following problems:

[0005] (1) When stopping, one person needs to hold the pliers to stop, and another person needs to measure, which makes the operation cumbersome. At least two people are needed to complete the gear meshing clearance measurement operation.

[0006] (2) Using pliers to clamp the inner hole of gear 100 can easily damage the inner hole of gear 100.

[0007] (3) The gear is stopped by manually holding the pliers, which requires the worker to hold the pliers continuously, resulting in a high physical exertion. In addition, the worker's grip strength decreases when fatigued, making it impossible to stop the gear continuously. Summary of the Invention

[0008] The main objective of this invention is to provide a stop device and method for measuring gear meshing clearance, thereby solving the aforementioned technical problems.

[0009] To achieve the above objectives, the present invention provides a stop device for measuring gear meshing clearance, comprising a sleeve, a conical shaft, and a support plate; multiple supports are mounted on the support plate, and a support block is mounted on the lower end of each support for connection with a stud on the end face of the housing; the sleeve is mounted at the center of the lower surface of the support plate; the conical shaft is slidably mounted in the center hole of the sleeve; the lower end of the sleeve is configured as an insertion section for insertion into the inner hole of the gear; multiple slits are evenly distributed axially on the insertion section, dividing the insertion section into multiple elastic segments; the lower end of the conical shaft is configured as a cone, and the upper end of the conical shaft is configured as a threaded section extending from the center hole of the support plate and screwed with a wing nut; when the conical shaft moves upward, the outer conical surface of the cone engages with the inner conical surface of the insertion section and expands the elastic segments.

[0010] Preferably, a limiting groove is formed laterally on the outer cylindrical surface of the conical shaft; a cylindrical pin is inserted laterally into the sleeve; the cylindrical pin is located in the limiting groove.

[0011] Preferably, the support plate includes a disc body and three support arms integrally formed on the outer circumferential surface of the disc body, with a support mounting hole provided near the end of each support arm; the upper part of the support arm is provided as an annular platform and a threaded rod; the threaded rod passes through the support mounting hole and is screwed with a knurled nut; the annular platform is supported on the lower surface of the support arm.

[0012] Preferably, the upper end of the sleeve is provided as a flange plate, and the flange plate and the disc body are positioned and fastened together by pins and screws.

[0013] Preferably, the support block is provided with a plug hole and a stud through hole; the lower end of the support column is integrally formed with a plug post; the outer diameter of the plug post is smaller than the outer diameter of the support column, the plug post is inserted into the plug hole of the support block, and a fixing pin is inserted laterally on the support block and the plug post.

[0014] Preferably, a retaining washer is fitted onto the threaded section of the tapered shaft, and the retaining washer is located between the wing nut and the support plate.

[0015] Preferably, the number of the splits is at least three.

[0016] Preferably, a stress dispersion hole is provided at the top of each split.

[0017] On the other hand, the present invention also proposes a stopping method for measuring gear meshing clearance, which employs the above-mentioned stopping device and includes the following steps:

[0018] S1. Loosen the wing nut to move the cone shaft down, thereby separating the outer cone surface of the cone from the inner cone surface of the insertion section, and the elastic valve block is in a closed state;

[0019] S2. By connecting the support block with the stud on the end face of the housing, the entire stop device is installed on the housing, and the insertion section at the lower end of the sleeve is inserted into the inner hole of the gear.

[0020] S3. Tighten the wing nut to move the cone shaft upward. The outer cone surface of the cone engages with the inner cone surface of the insertion section and expands the elastic flap. The elastic flap expands and tightens in the inner hole of the gear, thus stopping the gear.

[0021] Preferably, in step S2, the knurled nut is first loosened, at which point the support plate can float on the threaded rod at the top of the support column. After aligning the insertion section of the sleeve with the inner hole of the gear, the knurled nut is rotated to push the support plate down gradually, so that the insertion section at the lower end of the sleeve can be inserted into the inner hole of the gear.

[0022] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0023] (1) By using the stopping device provided by the present invention, when stopping the gear, the entire stopping device is installed on the housing by connecting the support block with the stud on the end face of the housing, and the insertion section at the lower end of the sleeve is inserted into the inner hole of the gear. The wing nut is tightened, causing the cone shaft to move upward. The outer cone surface of the cone body cooperates with the inner cone surface of the insertion section and expands the elastic flap. The elastic flap is tightened in the inner hole of the gear, thus stopping the gear.

[0024] (2) The entire stop device has a simpler and more compact structure, and has a better stop effect on gears, effectively overcoming the shortcomings of the manual method of using pliers to stop the gear. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the stopping device provided by the present invention stopping the gear;

[0027] Figure 2 for Figure 1 CC section view;

[0028] Figure 3 This is a schematic diagram of the sleeve structure in this invention;

[0029] Figure 4 This is a schematic diagram of the support plate in this invention;

[0030] Figure 5 This is a schematic diagram of the support block in this invention.

[0031] Explanation of reference numerals: 1. Sleeve; 1a. Insertion section; 1b. Split; 1c. Flange plate; 1d. Stress dispersion hole; 2. Tapered shaft; 2a. Cone; 2b. Threaded section; 2c. Limiting groove; 3. Support plate; 3a. Disc; 3b. Support arm; 3c. Support mounting hole; 4. Support; 4a. Ring platform; 4b. Threaded rod; 4c. Insertion post; 5. Support block; 5a. Insertion hole; 5b. Stud through hole; 6. Knurled nut; 7. Wing nut; 8. Screw; 9. Cylindrical pin; 10. Fixing pin; 11. Pin; 12. Washer; 100. Gear; 200. Housing. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Combination Figures 1 to 5 As shown, this embodiment provides a stop device for measuring gear meshing clearance, including a sleeve 1, a conical shaft 2, and a support plate 3; multiple support columns 4 are installed on the support plate 3, and a support block 5 is installed at the lower end of the support column 4 for connection with the stud on the end face of the housing 200; the sleeve 1 is installed at the center position of the lower surface of the support plate 3; the conical shaft 2 is slidably installed in the center hole of the sleeve 1; the lower end of the sleeve 1 is configured as an insertion section 1a for insertion into the inner hole of the gear 100; multiple slits 1b are evenly distributed axially on the insertion section 1a, and the multiple slits 1b divide the insertion section 1a into multiple elastic segments; the lower end of the conical shaft 2 is configured as a cone 2a, and the upper end of the conical shaft 2 is configured as a threaded section 2b that extends from the center hole of the support plate 3 and is screwed with a wing nut 7; when the conical shaft 2 moves upward, the outer conical surface of the cone 2a engages with the inner conical surface of the insertion section 1a and expands the elastic segments.

[0035] Combination Figure 1 and Figure 2 As shown, a limiting groove 2c is laterally formed on the outer cylindrical surface of the conical shaft 2; a cylindrical pin 9 is laterally inserted into the sleeve 1; the cylindrical pin 9 is located within the limiting groove 2c. By setting the cylindrical pin 9, when the wing nut 7 is rotated, the rotation of the conical shaft 2 around its own axis can be restricted. This allows the wing nut 7 to drive the conical shaft 2 to move up and down.

[0036] Combination Figure 1 and Figure 4 As shown, the support plate 3 includes a disc body 3a and three support arms 3b integrally formed on the outer circumferential surface of the disc body 3a. Each support arm 3b is provided with a support mounting hole 3c near its end. The upper part of the support arm 4 is provided with an annular platform 4a and a threaded rod 4b. The threaded rod 4b passes through the support mounting hole 3c and is screwed with a knurled nut 6. The annular platform 4a is supported on the lower surface of the support arm 3b.

[0037] Combination Figure 1 and Figure 3 As shown, the upper end of the sleeve 1 is provided as a flange plate 1c, and the flange plate 1c and the disc body 3a are positioned and fastened by pins 11 and screws 8.

[0038] Combination Figure 1 and Figure 5 As shown, the support block 5 is provided with a plug hole 5a and a stud through hole 5b; the lower end of the support column 4 is integrally formed with a plug post 4c; the outer diameter of the plug post 4c is smaller than the outer diameter of the support column 4, the plug post 4c is inserted into the plug hole 5a of the support block 5, and a fixing pin 10 is horizontally inserted on the support block 5 and the plug post 4c.

[0039] Combination Figure 1 As shown, a retaining washer 12 is fitted onto the threaded section 2b of the tapered shaft 2, and the retaining washer 12 is located between the wing nut 7 and the support plate 3. By providing the retaining washer 12, the wing nut 7 can be prevented from loosening on its own.

[0040] Combination Figure 3 As shown, the number of the splits 1b is at least three. Furthermore, a stress dispersion hole 1d is provided at the top of each split 1b. By providing the stress dispersion hole 1d, stress is dispersed, preventing cracks from forming at the root of the elastic flap after prolonged use.

[0041] On the other hand, this embodiment also provides a stopping method for measuring gear meshing clearance, which employs the above-mentioned stopping device and includes the following steps:

[0042] S1. Loosen the wing nut 7 to move the cone shaft 2 downward, thereby separating the outer cone surface of the cone 2a from the inner cone surface of the insertion section 1a, and the elastic valve block is in a closed state.

[0043] S2. By connecting the support block 5 with the stud on the end face of the housing 200, the entire stop device is installed on the housing 200, and the insertion section 1a at the lower end of the sleeve 1 is inserted into the inner hole of the gear 100.

[0044] S3. Tighten the wing nut 7 to move the cone shaft 2 upward. The outer cone surface of the cone 2a engages with the inner cone surface of the insertion section 1a and expands the elastic flap. The elastic flap is tightened in the inner hole of the gear 100, which can stop the gear 100.

[0045] Furthermore, in step S2, the knurled nut 6 is first loosened. At this time, the support plate 3 can float on the threaded rod 4b at the top of the support column 4. After aligning the insertion section 1a of the sleeve 1 with the inner hole of the gear 100, the knurled nut 6 is rotated to push the support plate 3 to move down gradually, so that the insertion section 1a at the lower end of the sleeve 1 can be inserted into the inner hole of the gear 100.

[0046] After stopping gear 100, the next step of measuring gear meshing clearance can be carried out.

[0047] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A stop device for measuring gear meshing clearance, characterized in that, It includes a sleeve (1), a tapered shaft (2) and a support plate (3); multiple support columns (4) are installed on the support plate (3), and support blocks (5) are installed at the lower ends of the support columns (4) for connecting with studs on the end face of the housing (200); The sleeve (1) is installed at the center of the lower surface of the support plate (3); the tapered shaft (2) is slidably installed in the center hole of the sleeve (1); The lower end of the sleeve (1) is configured as an insertion section (1a) for insertion into the inner hole of the gear (100); multiple splits (1b) are evenly distributed axially on the insertion section (1a), and the multiple splits (1b) divide the insertion section (1a) into multiple elastic segments. The lower end of the conical shaft (2) is configured as a cone (2a), and the upper end of the conical shaft (2) is configured as a threaded section (2b) and extends out from the center hole of the support plate (3) and is screwed with a wing nut (7). When the cone shaft (2) moves upward, the outer cone surface of the cone (2a) engages with the inner cone surface of the insertion section (1a) and expands the elastic flap; The support plate (3) includes a disc body (3a) and three support arms (3b) integrally formed on the outer circumferential surface of the disc body (3a). Each support arm (3b) is provided with a support mounting hole (3c) near its end. The upper part of the support (4) is provided with an annular platform (4a) and a threaded rod (4b). The threaded rod (4b) passes through the support mounting hole (3c) and is screwed with a knurled nut (6). The annular platform (4a) is supported on the lower surface of the support arm (3b).

2. The stop device for measuring gear meshing clearance as described in claim 1, characterized in that, A limiting groove (2c) is opened laterally on the outer cylindrical surface of the conical shaft (2); a cylindrical pin (9) is inserted laterally on the sleeve (1); the cylindrical pin (9) is located in the limiting groove (2c).

3. The stop device for measuring gear meshing clearance as described in claim 1, characterized in that, The upper end of the sleeve (1) is provided as a flange plate (1c), and the flange plate (1c) and the disc body (3a) are positioned and fastened by pins (11) and screws (8).

4. A stop device for measuring gear meshing clearance as described in claim 1, characterized in that, The support block (5) is provided with a plug hole (5a) and a stud through hole (5b); the lower end of the support column (4) is integrally formed with a plug post (4c); the outer diameter of the plug post (4c) is smaller than the outer diameter of the support column (4), the plug post (4c) is inserted into the plug hole (5a) of the support block (5), and a fixing pin (10) is horizontally inserted on the support block (5) and the plug post (4c).

5. A stop device for measuring gear meshing clearance as described in claim 1, characterized in that, A stop washer (12) is fitted on the threaded section (2b) of the tapered shaft (2), and the stop washer (12) is located between the wing nut (7) and the support plate (3).

6. A stop device for measuring gear meshing clearance as described in claim 1, characterized in that, The number of the splits (1b) is at least three.

7. A stop device for measuring gear meshing clearance as described in claim 1, characterized in that, Stress dispersion holes (1d) are provided at the top of each split (1b).

8. A stopping method for measuring gear meshing clearance, characterized in that, The stopping device according to any one of claims 1 to 7 comprises the following steps: S1. Loosen the wing nut (7) to move the cone shaft (2) down, thereby separating the outer cone surface of the cone (2a) from the inner cone surface of the insertion section (1a), and the elastic valve block is in a closed state; S2. By connecting the support block (5) with the stud on the end face of the housing (200), the entire stop device is installed on the housing (200), and the insertion section (1a) at the lower end of the sleeve (1) is inserted into the inner hole of the gear (100). S3. Tighten the wing nut (7) to move the cone shaft (2) upward. The outer cone surface of the cone (2a) engages with the inner cone surface of the insertion section (1a) and expands the elastic flap. The elastic flap is tightened in the inner hole of the gear (100) to stop the gear (100).

9. A stopping method for measuring gear meshing clearance as described in claim 8, characterized in that, In step S2, the knurled nut (6) is loosened first. At this time, the support plate (3) can float on the threaded rod (4b) at the top of the support column (4). After aligning the insertion section (1a) of the sleeve (1) with the inner hole of the gear (100), the knurled nut (6) is rotated to push the support plate (3) to move down gradually, so that the insertion section (1a) at the lower end of the sleeve (1) can be inserted into the inner hole of the gear (100).

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