An oil seal circulation tooling for bench test and a bench test device

Abstract

The present invention discloses an oil seal circulation tooling for bench testing and a bench testing device, which includes a body part for realizing plugging and sealing in cooperation with the sample housing. A central hole for the bench input shaft to pass through is coaxially arranged on the body part. An oil seal installation groove for cooperating with the oil seal on the bench input shaft is arranged at one end of the body part. At least three support brackets for realizing axial limitation of the body part are arranged on the outer peripheral surface of the body part. The support brackets are arranged in a rotationally symmetric manner relative to the central axis of the body part. A positioning stop for ensuring the coaxiality of the installation of the body part and the bench input shaft is arranged on each support bracket and extends along the axial direction of the body part. The present invention not only has a simple structure, but also avoids reinstalling the oil seal, saves a large amount of time and labor costs, reduces the cost investment of enterprises, and improves the oil seal circulation tooling for bench test efficiency.

Description

Background Art

[0002] The bench test means that after a product is conceptually designed and a sample box is formed, some simulated trial operation tests generally need to be carried out, including some engine assembly tests, and only after passing can it be put into mass production. Finally, the operating capabilities of the product components and the whole machine in the expected environment are evaluated. The existing installation method of the oil seal for bench testing is as follows Figure 9 As shown, the oil seal C on the bench input shaft A is fitted and installed at a relatively deep position inside the sample housing B (the original oil seal installation position H in the figure). There is no transition piece between the bench panel E and the sample housing B. The bench test is usually carried out on bench equipment. When performing the bench test, it is usually necessary to install the oil seal on the sample housing B, which increases the workload during installation, reduces efficiency, and after each test, the oil seal needs to be removed. Since the position where the sample housing B installs the oil seal C is relatively deep, it increases the difficulty of removing the oil seal C. At the same time, the removed oil seal cannot be used again, wasting manpower and material resources. At the same time, the same type of oil seal is used for multiple projects, and more oil seals need to be purchased for multiple products, wasting both time and cost. Therefore, it is urgent to develop an oil seal recycling tooling to solve the above technical problems. Summary of the Invention

[0003] In view of the technical problems existing in the prior art, the present invention provides an oil seal recycling tooling for bench testing and a bench testing device, which not only has a simple structure, but also avoids reinstalling and disassembling the oil seal, saving a large amount of time and labor expenditure, reducing the cost investment of the enterprise, and improving the oil seal recycling tooling for bench test efficiency.

[0004] The present invention discloses an oil seal recycling tooling for bench testing, which is used to realize the sealed connection between the bench input shaft and the sample housing. It includes a body part for realizing plug-in sealing in cooperation with the sample housing. A central hole for the bench input shaft to pass through is coaxially arranged on the body part. One end of the body part is provided with an oil seal installation groove for cooperating with the oil seal on the bench input shaft. At least three support brackets for realizing the axial limit of the body part are arranged on the outer peripheral surface of the body part. The support brackets are rotationally symmetrically arranged relative to the central axis of the body part. A positioning stop for ensuring the coaxiality of the installation of the body part and the bench input shaft is arranged on each support bracket along the axial direction of the body part.

[0005] In a preferred embodiment of the present invention, there are 4 support brackets, and each support bracket is along the outer edge of the diameter of the body part, and the angle between any two relative to the support brackets is 90°.

[0006] In a preferred embodiment of the present invention, the thickness of the support bracket corresponds to the distance between the end face of the bench panel and the end face of the sample housing.

[0007] In a preferred embodiment of the present invention, the positioning stop is arc-shaped, the outer diameter of the arc shape corresponds to the diameter of the mounting hole of the bench panel, and the center of the arc-shaped positioning stop is located on the central axis of the body portion.

[0008] In a preferred embodiment of the present invention, the body portion is cylindrical, and a sealing ring mounting groove is provided on the outer peripheral surface of the body portion.

[0009] In a preferred embodiment of the present invention, an oil guiding groove for guiding lubricating oil into the space between the body portion and the oil seal is provided on the inner wall of the central hole.

[0010] In a preferred embodiment of the present invention, there are multiple oil guiding grooves, each oil guiding groove extends along the axial direction of the body portion, and the multiple oil guiding grooves are rotationally symmetrically arranged with respect to the central axis of the body portion.

[0011] In a preferred embodiment of the present invention, a puller connection threaded hole for convenient disassembly is provided on the support bracket.

[0012] In a preferred embodiment of the present invention, the diameter of the oil seal mounting groove is larger than the diameter of the central hole, and the shape and size of the oil seal mounting groove correspond to the shape and size of the oil seal.

[0013] The present invention also discloses a bench test device, including a bench panel, a bench input shaft and a sample housing. An oil seal is provided on the bench input shaft. An oil seal circulation tooling for bench testing is provided between the bench panel and the sample housing. The body portion of the oil seal circulation tooling for bench testing is in sealed and mating plug connection with the sample housing, the positioning stop of the oil seal circulation tooling for bench testing is in mating plug connection with the mounting hole of the bench panel, the oil seal is in sealed mating connection in the oil seal mounting groove of the oil seal circulation tooling for bench testing, and the support bracket of the oil seal circulation tooling for bench testing is pressed between the first limiting structure on the bench panel and the second limiting structure on the sample housing. During disassembly, the oil seal remains unchanged, and only the oil seal circulation tooling for bench testing needs to be removed.

[0014] The beneficial effects of the present invention are as follows: The structure of the present invention is simple. By introducing an oil seal circulation tooling between the bench panel and the sample housing, it can not only ensure the coaxiality of the oil seal installation, but also only need to remove the oil seal circulation tooling instead of the oil seal after use, avoiding the need to reinstall the oil seal, saving a large amount of time and labor costs, reducing the cost investment of the enterprise, and improving the efficiency of the bench test with an oil seal circulation and reuse tooling.

[0015] Furthermore, the present invention includes a body portion for mating with a sample housing to achieve plugging and sealing. A central hole for the bench input shaft to pass through is coaxially provided on the body portion. An oil seal mounting groove for mating with the oil seal on the bench input shaft is provided at one end of the body portion. At least three support brackets for axially limiting the body portion are provided on the outer peripheral surface of the body portion. The support brackets are rotationally symmetrically arranged with respect to the central axis of the body portion. A positioning stop for ensuring the coaxiality of the installation of the body portion and the bench input shaft is provided on each support bracket and extends along the axis direction of the body portion. It not only has a simple structure and is convenient for processing and manufacturing, but also can achieve precise axial and circumferential positioning of the oil seal, ensuring the coaxiality of the oil seal installation;

[0016] Furthermore, there are 4 support brackets in the present invention. Each support bracket is along the outer edge of the diameter of the body portion, and the included angle between any two relative to the support brackets is 90°. This cross-shaped structural design can not only facilitate the operator to observe the inside of the sample housing, but also has a light weight and less consumables;

[0017] Furthermore, the thickness of the support bracket of the present invention corresponds to the distance between the end face of the bench panel and the end face of the sample housing. This structure facilitates the axial positioning of the oil seal circulation tooling;

[0018] Furthermore, the positioning stop of the present invention is arc-shaped. The outer diameter of the arc corresponds to the diameter of the mounting hole of the bench panel. The center of the arc-shaped positioning stop is located on the central axis of the body portion. This structural design can achieve the circumferential positioning of the oil seal circulation tooling, ensuring the coaxiality of the bench input shaft, the sample housing, and the oil seal;

[0019] Furthermore, the body portion of the present invention is cylindrical, and a sealing ring mounting groove is provided on the outer peripheral surface of the body portion. This structure is more conducive to processing and manufacturing, ensuring the sealing between the sample housing and the oil seal circulation tooling;

[0020] Furthermore, an oil guiding groove for guiding lubricating oil between the body portion and the oil seal is provided on the inner wall of the central hole of the present invention. This structure can effectively utilize the leaked lubricating oil to lubricate the oil seal, preventing the loss caused by the dry friction between the oil seal and the oil seal circulation tooling;

[0021] Furthermore, there are multiple oil guiding grooves in the present invention. Each oil guiding groove extends along the axis direction of the body portion, and the multiple oil guiding grooves are rotationally symmetrically arranged with respect to the central axis of the body portion. This structural design can fully lubricate the oil seal;

[0022] Furthermore, a pull code connection threaded hole for convenient disassembly is provided on the support bracket of the present invention. This structural design is more conducive to the removal of the oil seal circulation tooling for bench testing

[0023] The present invention also discloses a bench test device, which includes a bench panel, a bench input shaft and a sample housing. An oil seal is provided on the bench input shaft, and an oil seal circulation tooling for bench test is arranged between the bench panel and the sample housing. The body part of the oil seal circulation tooling for bench test is in sealing and mating plug connection with the sample housing, and the positioning stop of the oil seal circulation tooling for bench test is in mating plug connection with the mounting hole of the bench panel. The oil seal is in sealing connection with the oil seal installation groove of the oil seal circulation tooling for bench test. The support bracket of the oil seal circulation tooling for bench test is pressed between the first limiting structure on the bench panel and the second limiting structure on the sample housing. During disassembly, the oil seal remains unchanged, and only the oil seal circulation tooling for bench test needs to be removed. After using the present invention, the efficiency of the bench test can be greatly improved and the loss of the oil seal can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a schematic diagram of an oil seal circulation tooling for bench test according to the present invention;

[0025] Figure 2 FIG. is a front view of an oil seal circulation tooling for bench test according to the present invention;

[0026] Figure 3 FIG. is a side view of an oil seal circulation tooling for bench test according to the present invention;

[0027] Figure 4 FIG. is a side view of an oil seal circulation tooling for bench test according to the present invention;

[0028] Figure 5 FIG. is a top view of an oil seal circulation tooling for bench test according to the present invention;

[0029] Figure 6 FIG. is a cross-sectional view of an oil seal circulation tooling for bench test according to the present invention;

[0030] Figure 7 FIG. is a schematic diagram of the use state of an oil seal circulation tooling for bench test according to the present invention;

[0031] Figure 8 FIG. is a schematic diagram of the use state of an oil seal circulation tooling for bench test according to the present invention

[0032] Figure 9 FIG. is a schematic diagram of the installation position of the oil seal in the sample housing in the prior art;

[0033] In the figure: 1 - body part; 2 - central hole; 3 - oil seal installation groove; 4 - support bracket; 5 - positioning stop; 6 - sealing ring installation groove; 7 - oil guiding groove; 8 - puller connection threaded hole; A - bench input shaft; B - sample housing; C - oil seal; D - installation hole; E - bench panel; F - first limiting structure; G - second limiting structure; H - original oil seal installation position. Detailed implementation manners

[0034] The technical solutions (including the preferred technical solutions) of the present invention will be further described in detail below by way of the accompanying drawings and by listing some alternative embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0035] As Figures 1-6 shown, the present invention discloses an oil seal circulation tooling for bench testing, which is used to realize the sealed connection between the bench input shaft A and the sample housing B. It includes a body part 1 for cooperating with the sample housing B to achieve plug-in sealing. A central hole 2 for the bench input shaft A to pass through coaxially is provided on the body part 1. An oil seal installation groove 3 for cooperating with the oil seal C on the bench input shaft A is provided at one end of the body part 1. At least three support brackets 4 for realizing the axial limit of the body part 1 are provided on the outer peripheral surface of the body part 1. The support brackets 4 are arranged rotationally symmetrically with respect to the central axis of the body part 1. A positioning stop 5 extending along the axial direction of the body part 1 is provided on each support bracket 4 to ensure the coaxiality of the installation of the body part 1 and the bench input shaft A. The positioning stop 5 is used for tooling positioning to ensure the coaxiality of the tooling and the bench input motor, and to prevent the oil seal from failing due to the non-coaxiality of the two; the support brackets 4 are in a cross shape, and it can be observed whether there is oil leakage at the sample and the bench input shaft. It is used to support the installation of the tooling on the bench panel and prevent the tooling from moving axially. There are puller connection threaded holes on it, which is convenient for tooling disassembly and assembly; the oil seal installation groove 3 is used to install the oil seal, so that the oil seal cooperates with the bench input shaft to realize the sealing of the lubricating oil in the box.

[0036] In a preferred implementation manner of the present invention, there are 4 support brackets 4, and each support bracket 4 is along the outer edge of the diameter of the body part 1, and the included angle between any two relative support brackets 4 is 90°.

[0037] In a preferred implementation manner of the present invention, the outer peripheral surface of the support bracket 4 is an arc surface, and the outer diameter of the outer peripheral surface of the support bracket is greater than the diameter of the outer peripheral surface of the positioning stop 5.

[0038] In a preferred embodiment of the present invention, the thickness of the support bracket 4 corresponds to the distance between the end face of the bench panel E and the end face of the sample housing B.

[0039] In a preferred embodiment of the present invention, the positioning rabbet 5 is arc-shaped, the outer diameter of the arc shape corresponds to the diameter of the mounting hole D of the bench panel, and the center of the arc-shaped positioning rabbet 5 is located on the central axis of the body portion 1.

[0040] In a preferred embodiment of the present invention, the body portion 1 is cylindrical, and a seal ring installation groove 6 is provided on the outer peripheral surface of the body portion 1. The oil seal installation groove 3 is used to install an O-ring to achieve sealing at the sample input shaft.

[0041] In a preferred embodiment of the present invention, an oil guiding groove 7 for guiding lubricating oil between the body portion 1 and the oil seal C is provided on the inner wall of the central hole 2. The oil guiding groove 7 can guide the oil to the oil seal C to provide oil lubrication for the oil seal C and has the function of allowing the oil to flow back.

[0042] In a preferred embodiment of the present invention, there are multiple oil guiding grooves 7, and each oil guiding groove 7 extends along the axial direction of the body portion 1. The multiple oil guiding grooves 7 are rotationally symmetrically arranged with respect to the central axis of the body portion 1.

[0043] In a preferred embodiment of the present invention, a puller connection threaded hole 8 for convenient disassembly is provided on the support bracket 4.

[0044] In a preferred embodiment of the present invention, the diameter of the oil seal installation groove 3 is larger than the diameter of the central hole 2. The shape and size of the oil seal installation groove 3 correspond to the shape and size of the oil seal C. It should be noted that after the oil seal installation groove 3 needs to be adapted to the oil seal C, different types of oil seals C correspond to different oil seal circulation toolings. Therefore, only the oil seal circulation tooling needs to be selected according to the oil seal C.

[0045] As Figures 8-9As shown in the figure, the present invention also discloses a bench test device, which includes a bench panel E, a bench input shaft A and a sample housing B. An oil seal C is provided on the bench input shaft A. An oil seal circulation tooling for bench test is provided between the bench panel E and the sample housing B. The body part 1 of the oil seal circulation tooling for bench test is hermetically and cooperatively inserted with the sample housing B. The positioning stop 5 of the oil seal circulation tooling for bench test is cooperatively inserted with the mounting hole D of the bench panel. The oil seal C is hermetically and cooperatively connected to the oil seal installation groove 3 of the oil seal circulation tooling for bench test. The support bracket 4 of the oil seal circulation tooling for bench test is pressed between the first limiting structure F on the bench panel E and the second limiting structure G on the sample housing B. During disassembly, the oil seal C remains unchanged, and only the oil seal circulation tooling for bench test needs to be removed. The first structure is an annular boss on the end face of the bench panel E. The second limiting structure G includes an annular boss and a gland on the end face of the sample housing B. The gland is inserted on the body part 1 and axially limited by two annular bosses. The gland and the bench panel E cooperate to axially limit the support bracket 4. This limiting structure is not only stable but also convenient for adapting to different models of bench panels E and sample housings B. Comparison Figure 9 It can be seen that the oil seal C of the present invention does not contact the sample housing B, so the original oil seal installation position H on the sample housing B can be omitted. After the test, the oil seal can be recycled, avoiding the need to reinstall the oil seal, saving a lot of time and labor costs. An oil seal recycling tooling that reduces the enterprise cost input and improves the bench test efficiency.

[0046] It is easy for those skilled in the art to understand that the above is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, combinations, substitutions, improvements, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. An oil seal circulation tooling for bench test, characterized in that: It is used to achieve a sealed connection between the bench input shaft (A) and the sample housing (B), and includes a body part (1) for cooperating with the sample housing (B) to achieve plug-in sealing. A central hole (2) for the bench input shaft (A) to pass through is coaxially arranged on the body part (1). An oil seal installation groove (3) for cooperating with the oil seal (C) on the bench input shaft (A) is arranged at one end of the body part (1). At least three support brackets (4) for axially limiting the body part (1) are arranged on the outer peripheral surface of the body part (1). The support brackets (4) are rotationally symmetrically arranged with respect to the central axis of the body part (1). A positioning stop (5) extending along the axis of the body part (1) for ensuring the coaxiality of the installation of the body part (1) and the bench input shaft (A) is arranged on each support bracket (4); the thickness of the support bracket (4) corresponds to the distance between the end face of the bench panel (E) and the end face of the sample housing (B); the diameter of the oil seal installation groove (3) is larger than the diameter of the central hole (2), and the shape and size of the oil seal installation groove (3) correspond to the shape and size of the oil seal (C).

2. The oil seal circulation tooling for bench test according to claim 1, wherein: There are 4 support brackets (4), and each support bracket (4) is along the radial outer edge of the body part (1), and the included angle between any two support brackets (4) is 90°.

3. The oil seal circulation tooling for bench test according to claim 1, wherein: The positioning stop (5) is arc-shaped, and the outer diameter of the arc corresponds to the diameter of the installation hole (D) of the bench panel. The center of the arc-shaped positioning stop (5) is located on the central axis of the body part (1).

4. The oil seal circulation tooling for bench test according to claim 1, wherein: The body part (1) is cylindrical, and a seal ring installation groove (6) is arranged on the outer peripheral surface of the body part (1).

5. The oil seal circulation tooling for bench testing according to claim 1, characterized in that: An oil guiding groove (7) for guiding lubricating oil between the body part (1) and the oil seal (C) is arranged on the inner wall of the central hole (2).

6. The oil seal circulation tooling for bench testing according to claim 5, wherein: There are multiple oil guiding grooves (7), and each oil guiding groove (7) extends along the axis direction of the body part (1). The multiple oil guiding grooves (7) are rotationally symmetrically arranged with respect to the central axis of the body part (1).

7. The oil seal circulation tooling for bench testing according to claim 1, characterized in that: A puller connection threaded hole (8) for convenient disassembly is arranged on the support bracket (4).

8. A bench test device, characterized in that: It includes a bench panel (E), a bench input shaft (A) and a sample housing (B). An oil seal (C) is provided on the bench input shaft (A). An oil seal circulation tooling for bench testing as described in any one of claims 1-7 is provided between the bench panel (E) and the sample housing (B). The body part (1) of the oil seal circulation tooling for bench testing is in sealed and mating insertion with the sample housing (B). The positioning stop (5) of the oil seal circulation tooling for bench testing is in mating insertion with the mounting hole (D) of the bench panel. The oil seal (C) is in sealed and mating connection within the oil seal mounting groove (3) of the oil seal circulation tooling for bench testing. The support bracket (4) of the oil seal circulation tooling for bench testing is pressed between the first limiting structure (F) on the bench panel (E) and the second limiting structure (G) on the sample housing (B). During disassembly, the oil seal (C) remains unchanged and only the oil seal circulation tooling for bench testing needs to be removed.

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