Gearbox oil seal depth measuring device

By designing a gearbox oil seal depth measuring device, which combines a dial indicator and a scraper structure, the problems of low efficiency and dirt accumulation in oil seal depth measurement are solved, achieving efficient and low-cost clean measurement.

CN223976609UActive Publication Date: 2026-03-06WUXI XIYU PRECISION MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing oil seal depth measuring devices are inefficient, costly, and prone to soiling the outer wall of the gearbox during the measurement process.

Method used

Design a transmission oil seal depth measuring device that includes a measuring mechanism, an oil removal mechanism, and a pressure mounting mechanism. Utilize a combination of a dial indicator and a scraper to measure the oil seal depth and remove oil from the outside of the probe, thus avoiding soiling the transmission outer wall.

Benefits of technology

It improves the efficiency and comfort of oil seal depth measurement, reduces costs, and keeps the outer wall of the gearbox clean.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gearbox oil seal depth measuring device, which comprises a measuring mechanism, a deoiling mechanism and a pressing mechanism, and is characterized in that the measuring mechanism comprises a guide plate, a dial indicator and the deoiling mechanism, the deoiling mechanism comprises two scraping plates attached to the two sides of the dial indicator probe respectively, two rod bodies connected between the guide plate and the scraping plates and a pressing mechanism, and the pressing mechanism comprises a plate sleeve connected with the top of the guide plate and a supporting rod connected with the top of the plate sleeve. According to the utility model, the dial indicator probe is aligned with the external gearbox oil seal, then the guide plate is controlled to be attached to the outer wall of the gearbox, then the dial indicator is pressed downwards, so that the dial indicator probe goes deep into the gearbox oil seal, the depth is measured, after the measurement is completed, the dial indicator is moved upwards, and then the two scrapers scrape off oil on the outer side of the dial indicator probe. Oil is prevented from staining the outer wall of the gearbox, and the use comfort is improved.
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Description

Technical Field

[0001] This utility model relates to the field of oil seal depth measurement technology, specifically a gearbox oil seal depth measuring device. Background Technology

[0002] The primary function of a transmission oil seal is to seal the fluid inside the transmission, preventing leakage. It is typically located in various parts of the transmission, such as the input shaft, output shaft, and intermediate shaft. Oil seals are generally made of rubber or metal, possessing good elasticity and oil resistance. During transmission operation, the oil seal effectively prevents fluid leakage from these parts, ensuring the normal operation of the transmission.

[0003] Application number CN202021855465.2 discloses a fixture for measuring the depth of an oil seal in a housing, relating to the field of automotive engine technology. It aims to solve the problems of low efficiency, high cost, large space requirements, and limited application locations associated with existing oil seal depth measuring devices. The key technical point is the inclusion of a support plate and other structures. The fixture is placed on the housing surface, and data is read using a micrometer. A guide hole ensures the micrometer is perpendicular to the oil seal end face, making operation convenient, efficient, and eliminating the need for an additional measuring table, thus reducing costs. However, in practical use, the micrometer probe is pulled out from inside the gearbox, causing oil to drain from the surface, which contaminates the gearbox surface and causes inconvenience. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A gearbox oil seal depth measuring device includes a measuring mechanism, an oil removal mechanism, and a pressing mechanism. The measuring mechanism includes a guide plate and a dial indicator vertically inserted into the guide plate. The oil removal mechanism includes two scrapers respectively attached to both sides of the dial indicator probe and two rods connected between the guide plate and the scrapers. The pressing mechanism includes a plate sleeve connected to the top of the guide plate, a support rod connected to the top of the plate sleeve, and a rope attached to the top of the support rod and connected to the dial indicator. The plate sleeve is movably sleeved on the outside of the dial indicator.

[0007] By adopting the above technical solution, the dial indicator probe is aligned with the external transmission oil seal, then the guide plate is controlled to fit against the outer wall of the transmission, and then the dial indicator is pressed down to make the dial indicator probe penetrate into the transmission oil seal to measure the depth. After the measurement is completed, the dial indicator is moved up, and then two scrapers are used to scrape off the oil on the outside of the dial indicator probe to avoid the oil from soiling the outer wall of the transmission and improve the comfort of use.

[0008] In a preferred embodiment, the present invention can be further configured such that the scraper is semi-conical, with the top diameter of the semi-conical shape being smaller than the bottom diameter.

[0009] In a preferred embodiment, the present invention can be further configured such that the support rod is located on one side of the dial indicator and is T-shaped.

[0010] In a preferred embodiment, the present invention can be further configured such that: a rope groove is provided at the top of the support rod, and the diameter of the rope groove is equal to the diameter of the rope.

[0011] In a preferred embodiment, the present invention can be further configured such that a pull ring is installed at the bottom end of the rope, and the pull ring is made of metal material.

[0012] In a preferred embodiment, the present invention can be further configured such that: a plurality of magnets are installed at the bottom of the guide plate, and the plurality of magnets are arranged in a matrix.

[0013] In a preferred embodiment, the present invention can be further configured such that a support rod is installed on one side of the support rod, and the support rod is located at the bottom of the pull ring.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] In this invention, the dial indicator probe is aligned with the external transmission oil seal, then the guide plate is controlled to fit against the outer wall of the transmission, and then the dial indicator is pressed down to make the dial indicator probe penetrate into the transmission oil seal to measure the depth. After the measurement is completed, the dial indicator is moved up, and then two scrapers are used to scrape off the oil on the outside of the dial indicator probe to prevent the oil from dirtying the outer wall of the transmission and improve the comfort of use. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a bottom view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the measuring mechanism of this utility model;

[0019] Figure 4 This utility model Figure 2 Enlarged view of the A-section structure;

[0020] Figure 5 This is a schematic diagram of the pressing mechanism of this utility model.

[0021] Figure label:

[0022] 100. Measuring mechanism; 110. Guide plate; 120. Dial indicator;

[0023] 200. Degreasing mechanism; 210. Scraper; 220. Rod;

[0024] 300. Pressing mechanism; 310. Plate sleeve; 320. Support rod; 330. Rope body;

[0025] 400. Magnet;

[0026] 500, support rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a gearbox oil seal depth measuring device.

[0030] Example 1:

[0031] Combination Figure 1-5 As shown, the present invention provides a gearbox oil seal depth measuring device, including a measuring mechanism 100, an oil removal mechanism 200 and a pressing mechanism 300. The measuring mechanism 100 includes a guide plate 110 and a dial indicator 120 vertically inserted into the guide plate 110.

[0032] The degreasing mechanism 200 includes two scrapers 210 respectively attached to both sides of the probe of the dial gauge 120, and two rods 220 connected between the guide plate 110 and the scrapers 210.

[0033] The pressing mechanism 300 includes a plate sleeve 310 connected to the top of the guide plate 110, a support rod 320 connected to the top of the plate sleeve 310, and a rope 330 attached to the top of the support rod 320 and connected to the dial indicator 120. The plate sleeve 310 is movably sleeved on the outside of the dial indicator 120.

[0034] Furthermore, the scraper 210 is configured as a semi-conical shape, with the top diameter of the semi-conical shape being smaller than the bottom diameter. With this shape design, the oil dripping down along the inner wall of the scraper 210 will not return to the surface of the dial gauge 120 probe.

[0035] Furthermore, the support rod 320 is located on one side of the dial indicator 120 and is T-shaped. This shape design allows the support rod 320 to stably support the rope 330.

[0036] Furthermore, the bottom of the guide plate 110 is equipped with multiple magnets 400 arranged in a matrix. With the magnets 400 installed, the guide plate 110 can firmly adhere to the outer wall of the gearbox.

[0037] Example 2:

[0038] Combination Figure 1 and Figure 5 As shown, based on Embodiment 1, the top of the support rod 320 is provided with a rope groove, the diameter of which is equal to the diameter of the rope body 330. The rope groove can limit the rope body 330 and prevent it from falling off the support rod 320.

[0039] Example 3:

[0040] Combination Figure 1 , 2 and Figure 5 As shown, in the above embodiment, a pull ring is installed at the bottom end of the rope 330. The pull ring is made of metal material and is provided to facilitate the operator to pull the rope 330.

[0041] Furthermore, a support rod 500 is installed on one side of the support rod 320. The support rod 500 is located at the bottom of the pull ring. The support rod 500 can limit the pull ring and the rope 330, so that the dial indicator 120 can remain stable.

[0042] The working principle and usage process of this utility model are as follows: When this device is put into actual use, the dial indicator 120 probe is aligned with the external transmission oil seal. Then, the guide plate 110 is controlled to fit against the outer wall of the transmission. The dial indicator 120 is then pressed down so that the dial indicator 120 probe penetrates into the transmission oil seal to measure the depth. After the measurement is completed, the dial indicator 120 is moved up, and then the two scrapers 210 scrape off the oil on the outside of the dial indicator 120 probe to prevent the oil from dirtying the outer wall of the transmission and improve the comfort of use.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gearbox oil seal depth measuring device, characterised in that, Include: Measurement mechanism (100), the measurement mechanism (100) includes guide plate (110), with the guide plate (110) vertical insertion dial gauge (120); Deoiling mechanism (200), the deoiling mechanism (200) includes two scrapers (210) respectively fitted on both sides of the dial gauge (120) probe, two rod bodies (220) connected between the guide plate (110) and the scraper (210); The loading mechanism (300) includes a plate sleeve (310) connected to the top of the guide plate (110), a brace rod (320) connected to the top of the plate sleeve (310), a rope body (330) fitted to the top of the brace rod (320) and connected to the dial gauge (120), and the plate sleeve (310) is movably sleeved outside the dial gauge (120).

2. A gearbox oil seal depth measuring device according to claim 1, characterised in that, The scraper (210) is set as a half-cone, and the diameter of the top of the half-cone is smaller than the diameter of the bottom.

3. A gearbox oil seal depth measuring device according to claim 1, wherein, The brace rod (320) is located on one side of the dial gauge (120) and is set as T-shaped.

4. A gearbox oil seal depth measuring device according to claim 1, wherein, The brace rod (320) is provided with a rope groove at the top end, and the diameter of the rope groove is equal to the diameter of the rope body (330).

5. A gearbox oil seal depth measuring device according to claim 1, wherein, The rope body (330) is provided with a pull ring at the bottom end, and the pull ring is made of metal material.

6. A gearbox oil seal depth measuring device according to claim 1, wherein, The bottom of the guide plate (110) is provided with a plurality of magnets (400), and the plurality of magnets (400) are arranged in a matrix.

7. A gearbox oil seal depth measuring device according to claim 5, wherein, The brace rod (320) is provided with a support rod (500) on one side, and the support rod (500) is located at the bottom of the pull ring.

Citation Information

Patent Citations

  • Shell oil seal depth measuring tool

    CN213238723U