Oil seal detection tool

By designing an oil seal inspection fixture and using a graduated rod and crayon to draw lines, the problem of the lack of intuitiveness in oil seal roundness inspection was solved, enabling rapid and accurate inspection of the outer diameter of the oil seal and avoiding damage to the outer side of the oil seal.

CN223954833UActive Publication Date: 2026-02-27HUBEI POLYTECHNIC INST
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Patent Information

Application Number
CN202520786425.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-02-27
Estimated Expiration
2035-04-24

AI Technical Summary

Technical Problem

In existing technologies, the roundness detection of oil seals is not intuitive and requires a lot of work, making it difficult to quickly and accurately determine their dimensional deviations.

Method used

An oil seal inspection fixture was designed. By using a scale rod and a crayon to draw lines, the crayon leaves a mark on the outer side of the oil seal when there is a dimensional deviation, thereby achieving precise inspection of the outer diameter of the oil seal.

Benefits of technology

It simplifies the oil seal inspection process, avoids damage to the outside of the oil seal, and improves the accuracy and efficiency of the inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of oil seals, and particularly discloses an oil seal detection tool which comprises a detection tool, the detection tool comprises a fixed base, a movable seat and a vertical rod, a movable insertion rod is arranged above the vertical rod, a sliding groove guide rod is installed on the outer side of the movable insertion rod, a detection mechanism is arranged in the sliding groove guide rod, and the detection mechanism comprises a crayon clamping box and a sliding block connecting rod. A locking screw rod is installed at the upper end of the sliding block connecting rod and located above the sliding groove guide rod, a scale mark post is installed on the side, close to the circle center of the fixed base, of the sliding block connecting rod, a scribing groove is formed in one side of the crayon clamping box, and an elastic pressing plate is installed in the crayon clamping box. After the whole sliding block connecting rod is controlled to move to the corresponding scale position in a groove in the sliding groove guide rod, the movable ball rotates in the guide groove, when an oil seal makes contact with a crayon, the crayon is scratched and marks are left, precise detection operation can be conducted after the oil seal is detached, and the purpose of pre-screening is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to oil seal field, concretely is a kind of oil seal detection tool. BACKGROUND

[0002] Oil seal is a kind of sealing device for preventing fluid leakage and protecting mechanical system, widely used in automobile, industrial equipment, aerospace and medical equipment, oil seal, also known as oil seal ring or sealing ring, is a kind of sealing piece for preventing lubricating medium from leaking from working system or preventing other foreign matters from invading sealing area, it is usually installed between stationary parts and rotating shaft or reciprocating parts of mechanical equipment, forms a sealed barrier.

[0003] However, when the roundness of oil seal is not enough, it is not intuitive to observe with naked eyes, and the work intensity is greater by directly using roundness detector. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides an oil seal detection tool, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical scheme: an oil seal detection tool, including detection tool, the detection tool includes: fixed base, movable seat, stand, the upper portion of stand is provided with movable inserting rod, the outside of movable inserting rod is installed with sliding slot guide rod, the inside of sliding slot guide rod is provided with detection mechanism, the detection mechanism includes: wax pen card box, sliding block connecting rod, the upper end of sliding block connecting rod is located the upper portion of sliding slot guide rod and is installed with locking screw rod, the side of sliding block connecting rod is installed with scale staff close to the fixed base circle center, the side of wax pen card box is equipped with scribing groove, the inside of wax pen card box is installed with elastic pressing plate, the lower surface of movable seat is circularly arranged and is equipped with moving ball, the upper surface of fixed base is equipped with guide slot corresponding to the position of moving ball.

[0006] As a further scheme of the utility model: the upper surface of stand is equipped with limiting hole, the upper end of stand is equipped with limiting slot, the upper end of stand is provided with outer sleeve, the inside of limiting slot is installed with spring.

[0007] As a further scheme of the utility model: the lower end of stand is provided with oil seal centering mechanism, and the oil seal centering mechanism comprises: rotating rod, rotating tooth disc, the upper and lower portions of rotating tooth disc are provided with tooth plate in the inside of stand, the outer side wall of rotating rod is installed with rotating bearing in the inside of stand, and the outer side wall of rotating rod is provided with locking ratchet gear outside the stand.

[0008] As further scheme of the utility model: the upper surface of the sliding groove guide rod is equipped with scale line, the locking screw rod is engaged with the sliding block connecting rod fixed connection.

[0009] As further scheme of the utility model: the movable seat is through the mobile ball with the guide groove sliding connection, the vertical rod is with the fixed base fixed connection.

[0010] As further scheme of the utility model: the movable plug-in rod is with the limiting jack connection, the spring is with the outer sleeve fixed connection, the outer sleeve is with the limiting groove sliding connection.

[0011] As further scheme of the utility model: the rotating tooth disc is with the toothed plate engagement movable connection.

[0012] As further scheme of the utility model: the toothed plate is with the vertical rod limiting sliding connection.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] According to the standard outer diameter size length of oil seal, control sliding block connecting rod whole in the groove of the inside of sliding groove guide rod moves to corresponding scale position, control movable seat utilizes mobile ball in the inside of guide groove and rotates, when the outside of oil seal exists size deviation, then can contact to wax pencil and scratch and leave mark, then can dismantle oil seal and carry out accurate detection operation, has the purpose of pre-screening, and the method for adopting wax pencil line can avoid scratching and damaging the outside of oil seal. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a kind of oil seal detection tool structure schematic view;

[0016] Figure 2 It is a kind of movable plug-in rod installation structure schematic view in oil seal detection tool;

[0017] Figure 3 It is fixed base sectional view in oil seal detection tool;

[0018] Figure 4 It is detection mechanism structure schematic view in oil seal detection tool;

[0019] Figure 5 It is oil seal centering mechanism structure schematic view in oil seal detection tool.

[0020] In the diagram: 1. Inspection fixture; 2. Fixed base; 3. Movable seat; 4. Upright rod; 5. Movable insertion rod; 6. Slide guide rod; 7. Inspection mechanism; 8. Oil seal centering mechanism; 201. Guide groove; 301. Moving ball; 401. Limit groove; 402. Spring; 403. Limit insertion hole; 404. Outer sleeve; 701. Crayon card holder; 702. Marking groove; 703. Elastic pressure plate; 704. Slider connecting rod; 705. Scale rod; 706. Locking screw; 801. Gear plate; 802. Rotating gear plate; 803. Rotating bearing; 804. Locking ratchet gear; 805. Rotating rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, this embodiment provides an oil seal testing fixture, including a testing fixture 1. The testing fixture 1 includes: a fixed base 2, a movable base 3, and a vertical rod 4. The vertical rod 4 is fixedly connected to the fixed base 2. A movable insert rod 5 is provided above the vertical rod 4. A sliding guide rod 6 is installed on the outer side of the movable insert rod 5. The upper surface of the sliding guide rod 6 has scale lines. A testing mechanism 7 is provided inside the sliding guide rod 6. The testing mechanism 7 includes: a crayon cartridge 701 and a slider connecting rod 704. A locking screw 706 is installed at the upper end of the slider connecting rod 704 above the sliding guide rod 6. The locking screw 706 is engaged and fixedly connected to the slider connecting rod 704. A scale rod 705 is installed on the side of the slider connecting rod 704 near the center of the fixed base 2. A marking groove 702 is provided on one side of the card holder 701. An elastic pressure plate 703 is installed inside the crayon card holder 701. A movable ball bearing 301 is arranged in a circular array on the lower surface of the movable seat 3. A guide groove 201 is provided on the upper surface of the fixed base 2 corresponding to the position of the movable ball bearing 301. The movable seat 3 is slidably connected to the guide groove 201 through the movable ball bearing 301. A limit insertion hole 403 is provided on the upper surface of the upright rod 4. The movable rod 5 is engaged with the limit insertion hole 403. A limit groove 401 is provided on the outer side of the upper end of the upright rod 4. An outer sleeve 404 is provided on the outer side of the upper end of the upright rod 4. A spring 402 is installed inside the limit groove 401. The spring 402 is fixedly connected to the outer sleeve 404. The outer sleeve 404 is slidably connected to the limit groove 401.

[0023] like Figures 2-3As shown, in the embodiment, the lower end of the stand 4 is internally provided with an oil seal centering mechanism 8, which comprises a rotating rod 805, a rotating toothed disc 802, and a toothed plate 801 arranged above and below the rotating toothed disc 802 and located in the interior of the stand 4, the rotating toothed disc 802 is movably connected with the toothed plate 801 in meshing mode, the toothed plate 801 is limitingly and slidably connected with the stand 4, a rotating bearing 803 is arranged on the outer side wall of the rotating rod 805 and located in the interior of the stand 4, and a locking ratchet gear 804 is arranged on the outer side wall of the rotating rod 805 and located outside the stand 4.

[0024] The working principle of the utility model is as follows: in use, the movable plug rod 5 is pulled out from above the stand 4, the oil seal to be detected is placed on the movable seat 3 from above the stand 4, the rotating rod 805 is controlled to exert a torque, the rotating toothed disc 802 is controlled to rotate to control the two toothed plates 801 to mesh and rotate outward, the two rotating toothed discs 802 are used to abut the oil seal on the upper position of the movable seat 3, the movable plug rod 5 is inserted into the limiting insertion hole 403, the wax pen is inserted into the wax pen card box 701, the stability of the wax pen is ensured under the action of the elastic pressing plate 703, the outermost end of the wax pen corresponds to the outermost position of the scale marker 705, the slide block connecting rod 704 is controlled to move in the slot of the slot guide rod 6 according to the standard outer diameter size length of the oil seal, the scale marker 705 is controlled to move to the corresponding scale position, the locking screw 706 is controlled to exert a torque, the detection mechanism 7 is limited in the slot guide rod 6, the movable seat 3 is controlled to rotate in the guide slot 201 by the moving ball 301, the oil seal is rotated, and when the oil seal has a size deviation, the oil seal can be disassembled and precisely detected.

[0025] It should be noted that, in this document, the terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations, and the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil seal detection tool comprising a detection tool (1), characterized in that, The detection tool (1) includes a fixed base (2), a movable seat (3), a vertical rod (4), an activity plug rod (5) arranged above the vertical rod (4), a sliding groove guide rod (6) mounted on the outer side of the activity plug rod (5), a detection mechanism (7) arranged in the sliding groove guide rod (6), the detection mechanism (7) includes a wax pen card box (701), a sliding block connecting rod (704), a locking screw (706) mounted on the upper end of the sliding block connecting rod (704) above the sliding groove guide rod (6), a scale mark rod (705) mounted on the side of the sliding block connecting rod (704) close to the center of the fixed base (2), a line groove (702) formed on the side of the wax pen card box (701), an elastic pressing plate (703) mounted in the wax pen card box (701), a plurality of movable rolling balls (301) arranged in a circular array on the lower surface of the movable seat (3), and a guide groove (201) formed on the upper surface of the fixed base (2) corresponding to the position of the movable rolling ball (301).

2. An oil seal detection tool according to claim 1, wherein A limiting hole (403) is formed on the upper surface of the vertical rod (4), a limiting groove (401) is formed on the outer side of the upper end of the vertical rod (4), an outer sleeve (404) is arranged on the outer side of the upper end of the vertical rod (4), and a spring (402) is mounted in the limiting groove (401).

3. An oil seal detection tool as set forth in claim 1, characterized by An oil seal centering mechanism (8) is arranged in the lower end of the vertical rod (4), the oil seal centering mechanism (8) includes a rotating rod (805) and a rotating tooth disc (802), tooth plates (801) are arranged in the vertical rod (4) above and below the rotating tooth disc (802), a rotating bearing (803) is mounted in the vertical rod (4) on the outer side wall of the rotating rod (805), and a locking ratchet gear (804) is arranged on the outer side wall of the rotating rod (805) outside the vertical rod (4).

4. An oil seal detection tool as set forth in claim 1, characterized by A scale line is formed on the upper surface of the sliding groove guide rod (6), and the locking screw (706) is fixedly connected with the sliding block connecting rod (704) in meshing mode.

5. An oil seal detection tool as set forth in claim 1, characterized by The movable seat (3) is slidably connected with the guide groove (201) through the movable rolling ball (301), and the vertical rod (4) is fixedly connected with the fixed base (2).

6. An oil seal detection tool as set forth in claim 2, characterized by The activity plug rod (5) is clamped with the limiting hole (403), the spring (402) is fixedly connected with the outer sleeve (404), and the outer sleeve (404) is slidably connected with the limiting groove (401).

7. An oil seal detection tool as set forth in claim 3, characterized by The rotating tooth disc (802) is movably connected with the tooth plate (801) in meshing mode.

8. An oil seal detection tool as set forth in claim 3, characterized by The tooth plate (801) is limitingly and slidably connected with the vertical rod (4).