Stop device and method for gear meshing clearance measurement

Abstract

The invention relates to the technical field of tool design and manufacturing, in particular to a stop device and method for measuring a gear meshing clearance. The stop device comprises a sleeve, a conical shaft and a support plate; a plurality of supporting columns are installed on the supporting plate, and supporting blocks are installed at the lower ends of the supporting columns and used for being connected with studs on the end face of a shell. The sleeve is installed at the center position of the lower surface of the supporting plate. The conical shaft is installed in a center hole of the sleeve in a sliding mode. An insertion section is arranged at the lower end of the sleeve and used for being inserted into an inner hole of a gear; a plurality of split slits are uniformly distributed in the axial direction of the insertion section, and the insertion section is divided into a plurality of elastic petal blocks by the plurality of split slits; the lower end of the conical shaft is arranged to be a cone, and the upper end of the conical shaft is arranged to be a threaded section and is screwed with a butterfly nut after extending out of the center hole of the supporting plate. And when the conical shaft moves upwards, the outer conical surface of the cone is matched with the inner conical surface of the insertion section and opens the elastic petal blocks.

Description

Technical Field

[0001] The invention relates to the technical field of tooling design and manufacturing, and in particular to a stopper device and method for measuring gear meshing clearance. Background Art

[0002] To measure the meshing clearance between two gears, you need to stop one of the gears and turn the other gear.

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

[0004] The conventional stopping method is to clamp the inner hole of the gear 100 with pliers to stop the gear 100. However, the following problems exist in the stopping method with pliers:

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

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

[0007] (3) The gear is stopped by manually holding the pliers. During the stopping process, the worker needs to hold the pliers continuously, which consumes a lot of physical strength. In addition, the worker's grip strength decreases after fatigue, and the gear cannot be stopped continuously. Summary of the invention

[0008] The main purpose of the present invention is to provide a stop device and method for measuring gear meshing clearance, aiming to solve the above technical problems.

[0009] To achieve the above-mentioned purpose, on the one hand, the present invention proposes a stopping device for measuring gear meshing clearance, comprising a sleeve, a tapered shaft and a support plate; a plurality of pillars are installed on the support plate, and a support block is installed at the lower end of the pillar for connecting with the stud on the end face of the shell; the sleeve is installed at the center position of the lower surface of the support plate; the tapered shaft is slidably installed in the center hole of the sleeve; the lower end of the sleeve is arranged as an insertion section for inserting into the inner hole of the gear; a plurality of slits are evenly distributed axially on the insertion section, and the plurality of slits divide the insertion section into a plurality of elastic petal blocks; the lower end of the tapered shaft is arranged as a cone, and the upper end of the tapered shaft is arranged as a threaded section and is screwed with a butterfly nut after extending from the center hole of the support plate; when the tapered shaft moves upward, the outer conical surface of the cone cooperates with the inner conical surface of the insertion section and opens the elastic petal block.

[0010] Preferably, a limiting groove is transversely provided on the outer cylindrical surface of the tapered shaft; a cylindrical pin is transversely inserted into the sleeve; and 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 circumference of the disc body, and a pillar mounting hole is provided near the end of each support arm; the upper part of the pillar is provided with an annular table and a threaded rod; the threaded rod is screwed with a knurled nut after passing through the pillar mounting hole; the annular table is supported on the lower surface of the support arm.

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

[0013] Preferably, a plug-in hole and a stud through hole are provided on the support block; a plug-in column is integrally formed at the lower end of the pillar; the outer diameter of the plug-in column is smaller than the outer diameter of the pillar, the plug-in column is inserted into the plug-in hole of the support block, and a fixing pin is transversely inserted on the support block and the plug-in column.

[0014] Preferably, a stop washer is sleeved on the threaded section of the tapered shaft, and the stop washer is located between the butterfly nut and the support plate.

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

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

[0017] On the other hand, the present invention also provides a stopping method for measuring gear meshing clearance, using the above-mentioned stopping device, comprising the following steps:

[0018] S1. Loosen the butterfly nut to move the cone shaft downward, so that the outer cone surface of the cone is separated from the inner cone surface of the insertion section, and the elastic petals are in a closed state;

[0019] S2. Use the support block to connect with the stud on the end surface of the housing, install the entire stop device on the housing, and insert the insertion section at the lower end of the sleeve into the inner hole of the gear;

[0020] S3. Tighten the butterfly nut to move the tapered shaft upward. The outer tapered surface of the cone cooperates with the inner tapered surface of the insertion section and stretches open the elastic petal block. The elastic petal block expands in the inner hole of the gear to stop the gear.

[0021] Preferably, in step S2, the knurled nut is first loosened, at which time the support plate can float on the threaded rod at the top of the pillar, and after the insertion section of the sleeve is aligned with the inner hole of the gear, the knurled nut is rotated to push the support plate to move downward stepwise, so that the insertion section of 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 adopting the stopping device provided by the present invention, when stopping the gear, the support block is connected to the stud on the end face of the shell, the entire stopping device is installed on the shell, and the insertion section at the lower end of the sleeve is inserted into the inner hole of the gear. The butterfly nut is tightened to move the tapered shaft upward, and the outer conical surface of the cone cooperates with the inner conical surface of the insertion section to open the elastic petal block, and the elastic petal block is expanded and tightened in the inner hole of the gear, so that the gear can be stopped.

[0024] (2) The entire stopping device has a simpler and more compact structure, has a good gear stopping effect, and effectively overcomes the shortcomings of the method of manually holding pliers for stopping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

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

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

[0028] Figure 3 It is a structural schematic diagram of the sleeve in the present invention;

[0029] Figure 4 It is a structural schematic diagram of the support plate in the present invention;

[0030] Figure 5 It is a structural schematic diagram of the support block in the present invention.

[0031] Explanation of the accompanying drawings: 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 body; 3b. Support arm; 3c. Pillar mounting hole; 4. Pillar; 4a. Ring table; 4b. Threaded rod; 4c. Plug-in column; 5. Support block; 5a. Plug-in hole; 5b. Stud through hole; 6. Knurled nut; 7. Butterfly nut; 8. Screw; 9. Cylindrical pin; 10. Fixing pin; 11. Pin; 12. Washer; 100. Gear; 200. Housing. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

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

[0034] Combination Figures 1 to 5 As shown, on the one hand, this embodiment provides a stop device for measuring gear meshing clearance, including a sleeve 1, a tapered shaft 2 and a support plate 3; a plurality of pillars 4 are installed on the support plate 3, and a support block 5 is installed at the lower end of the pillar 4 for connecting with the stud on the end face of the shell 200; the sleeve 1 is installed at the center position 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 set as an insertion section 1a for inserting into the inner hole of the gear 100; a plurality of slits 1b are evenly distributed axially on the insertion section 1a, and the plurality of slits 1b divide the insertion section 1a into a plurality of elastic petals; the lower end of the tapered shaft 2 is set as a cone 2a, and the upper end of the tapered shaft 2 is set as a threaded section 2b and is screwed with a butterfly nut 7 after extending from the center hole of the support plate 3; when the tapered shaft 2 moves upward, the outer conical surface of the cone 2a cooperates with the inner conical surface of the insertion section 1a and opens the elastic petals.

[0035] Combination Figure 1 and Figure 2 As shown, a limiting groove 2c is transversely provided on the outer cylindrical surface of the tapered shaft 2; a cylindrical pin 9 is transversely inserted on the sleeve 1; and the cylindrical pin 9 is located in the limiting groove 2c. By providing the cylindrical pin 9, when the butterfly nut 7 is rotated, the tapered shaft 2 can be limited from rotating around its own axis, so that the butterfly nut 7 can drive the tapered 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, and a support mounting hole 3c is provided near the end of each support arm 3b; the upper part of the support column 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 with a flange plate 1c, and the flange plate 1c and the disc body 3a are positioned and fastened by a pin 11 and a screw 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 pillar 4 is integrally formed with a plug column 4c; the outer diameter of the plug column 4c is smaller than the outer diameter of the pillar 4, the plug column 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 column 4c.

[0039] Combination Figure 1 As shown, a stop washer 12 is sleeved on the threaded section 2b of the tapered shaft 2, and the stop washer 12 is located between the butterfly nut 7 and the support plate 3. By providing the stop washer 12, the butterfly nut 7 can be prevented from loosening by itself.

[0040] Combination Figure 3 As shown, the number of the slits 1b is at least three. Furthermore, a stress dispersion hole 1d is provided at the top of each slit 1b. The stress dispersion hole 1d is provided to disperse stress and prevent cracks from forming at the root of the elastic petal after long-term use.

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

[0042] S1, loosen the butterfly nut 7 to move the cone shaft 2 downward, so that the outer cone surface of the cone 2a is separated from the inner cone surface of the insertion section 1a, and the elastic petals are in a closed state;

[0043] S2. Use the support block 5 to connect with the stud on the end surface of the housing 200, install the entire stopper on the housing 200, and insert the insertion section 1a at the lower end of the sleeve 1 into the inner hole of the gear 100;

[0044] S3. Tighten the butterfly nut 7 to move the tapered shaft 2 upward. The outer conical surface of the cone 2a cooperates with the inner conical surface of the insertion section 1a and opens the elastic petal block. The elastic petal block expands in the inner hole of the gear 100 to stop the gear 100.

[0045] Furthermore, in step S2, the knurled nut 6 is first loosened, at which time the support plate 3 can float on the threaded rod 4b at the top of the pillar 4, and after the insertion section 1a of the sleeve 1 is aligned with the inner hole of the gear 100, the knurled nut 6 is rotated to push the support plate 3 to move downward stepwise, 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 the gear 100 is stopped, the next step of measuring the gear meshing clearance can be carried out.

[0047] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A stopper device for measuring gear meshing clearance, characterized in that: It comprises a sleeve (1), a tapered shaft (2) and a support plate (3); a plurality of pillars (4) are mounted on the support plate (3); a support block (5) is mounted at the lower end of each pillar (4) for connecting with a stud on the end surface of a housing (200); The sleeve (1) is mounted at the center of the lower surface of the support plate (3); the tapered shaft (2) is slidably mounted in the center hole of the sleeve (1); The lower end of the sleeve (1) is provided as an insertion section (1a) for being inserted into the inner hole of the gear (100); a plurality of slits (1b) are evenly distributed axially on the insertion section (1a), and the plurality of slits (1b) divide the insertion section (1a) into a plurality of elastic petals; The lower end of the tapered shaft (2) is configured as a cone (2a), and the upper end of the tapered shaft (2) is configured as a threaded section (2b) which extends out from the central hole of the support plate (3) and is screwed with a butterfly nut (7); When the conical shaft (2) moves upward, the outer conical surface of the cone (2a) cooperates with the inner conical surface of the insertion section (1a) and opens the elastic petal block.

2. A gear meshing clearance measuring stopper as claimed in claim 1, characterized in that: A limiting groove (2c) is transversely provided on the outer cylindrical surface of the tapered shaft (2); a cylindrical pin (9) is transversely inserted into the sleeve (1); and the cylindrical pin (9) is located in the limiting groove (2c).

3. A gear meshing clearance measuring stopper as claimed in claim 1, characterized in that: The support plate (3) comprises a disc body (3a) and three support arms (3b) integrally formed on the outer peripheral surface of the disc body (3a); a support column mounting hole (3c) is provided near the end of each support arm (3b); the upper part of the support column (4) is provided with an annular platform (4a) and a threaded rod (4b); the threaded rod (4b) passes through the support column 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).

4. A gear meshing clearance measuring stopper as claimed in claim 3, characterized in that: The upper end of the sleeve (1) is provided with a flange plate (1c), and the flange plate (1c) and the disc body (3a) are positioned and fastened by means of pins (11) and screws (8).

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

6. A gear meshing clearance measuring stopper as claimed in claim 1, characterized in that: A stop washer (12) is sleeved on the threaded section (2b) of the tapered shaft (2), and the stop washer (12) is located between the butterfly nut (7) and the support plate (3).

7. A gear meshing clearance measuring stopper as claimed in claim 1, characterized in that: The number of the slits (1b) is at least three.

8. A gear meshing clearance measuring stopper as claimed in claim 1, characterized in that: A stress dispersion hole (1d) is arranged at the top of each cleavage (1b).

9. A stopping method for measuring gear meshing clearance, characterized in that: The stopping device according to any one of claims 1 to 8 comprises the following steps: S1, loosen the butterfly 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 petals are in a closed state; S2. Using the support block (5) to connect with the studs on the end surface of the housing (200), the entire stopper 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 butterfly nut (7) so that the conical shaft (2) moves upward, and the outer conical surface of the cone (2a) cooperates with the inner conical surface of the insertion section (1a) to open the elastic petal block, and the elastic petal block expands in the inner hole of the gear (100), thereby stopping the gear (100).

10. A stopping method for measuring gear meshing clearance as claimed in claim 9, characterized in that: In step S2, the knurled nut (6) is first loosened, and the support plate (3) can float on the threaded rod (4b) at the top of the pillar (4). After the insertion section (1a) of the sleeve (1) is aligned with the inner hole of the gear (100), the knurled nut (6) is rotated to push the support plate (3) to move downward step by step, 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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