Device for simultaneously detecting performances of two pairs of oil seals with different specifications

Abstract

The utility model discloses a device for simultaneously detecting the performance of two pairs of oil seals with different specifications, which comprises a large oil seal seat, and a pair of consistent bearing hole and oil seal hole is arranged in the large oil seal seat; the bearing hole is provided with a matched clamping ring groove, and a hole check ring I used for separating the deep groove ball bearing is installed in the clamping ring groove. A pair of consistent framework oil seal I, framework oil seal II and oil seal hole II is mounted in the large oil seal seat; the oil seal hole II is provided with a matched clamping ring groove, and an action hole check ring I used for axially limiting the oil seal is installed in the clamping ring groove. And the large oil seal seat is provided with a small oil seal seat. According to the utility model, two pairs of oil seals with different sizes are detected at the same time by using few parts, so that the detection efficiency is improved, and the detection cost is reduced; external circulation cooling oil is introduced, and non-pressure cooling and pressure cooling can be achieved by adjusting the pressure of an overflow valve of the hydraulic pump station; a pair of deep groove ball bearings is introduced, so that the position of the detection mechanism is more stable, and displacement is not easy to generate.

Description

Technical Field

[0001] This utility model relates to the field of oil seal testing technology for engineering machinery, specifically a device for simultaneously testing the performance of two pairs of oil seals of different specifications. Background Technology

[0002] Skeleton oil seals are mainly used on the rotating shafts of motor vehicles such as engineering machinery, agricultural machinery, and mining machinery. With the development of technology, the rotation speed is also developing towards high speed. People's pursuit of efficiency and the increasing labor costs have led to higher and higher requirements for sealing components such as skeleton oil seals. Under the guidance of zero tolerance for oil leakage, oil leakage is directly related to the survival of products.

[0003] To ensure the quality and reliability of purchased oil seal skeletons, in addition to requiring suppliers to provide necessary operating parameters and quality inspection reports, it is also necessary to conduct comparative tests on oil seal skeletons of the same specifications from different manufacturers under the same operating conditions to select the best option. Therefore, a device that simultaneously tests the performance of two pairs of oil seals of different specifications can compare performance under the same operating conditions and select the oil seal skeleton from a manufacturer with superior quality, thereby reducing the probability of product leakage failures. Summary of the Invention

[0004] The purpose of this invention is to provide a device for simultaneously testing the performance of two pairs of oil seals of different specifications, so as to conduct sealing performance tests on the same skeleton oil seals of the same specifications provided by different manufacturers under the same working conditions, so as to select the best among the best.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for simultaneously testing the performance of two pairs of oil seals of different specifications includes a large oil seal seat, wherein a pair of identical bearing holes and oil seal holes are installed inside the large oil seal seat.

[0007] The bearing bore is provided with a matching retaining ring groove, and a retaining ring I for separating the bore of the deep groove ball bearing is installed inside the retaining ring groove;

[0008] The large oil seal seat is equipped with a pair of identical skeleton oil seal I, skeleton oil seal II and oil seal hole II;

[0009] The oil seal hole II is provided with a matching retaining ring groove, and a retaining ring I for axially limiting the oil seal is installed inside the retaining ring groove;

[0010] The large oil seal seat is equipped with a small oil seal seat;

[0011] The small oil seal seat is equipped with a pair of identical skeleton oil seals III, skeleton oil seals IV and oil seal holes III;

[0012] The oil seal hole III is provided with a matching retaining ring groove, and a retaining ring II for axially limiting the oil seal is installed in the retaining ring groove.

[0013] Furthermore, the large oil seal seat is provided with pipe joints for connecting the inlet and outlet of the hydraulic pump station and introducing circulating cooling oil, and the two are threadedly connected.

[0014] Furthermore, a sealing cavity is formed between the skeleton oil seal I and the skeleton oil seal II.

[0015] Furthermore, the upper part of the large oil seal seat is provided with an observation hole for easy observation of the skeleton oil seal I lip and the skeleton sealing condition.

[0016] Furthermore, the small oil seal seat is provided with pipe joints for connecting the inlet and outlet of the hydraulic pump station and introducing circulating cooling oil, and the two are threadedly connected.

[0017] Furthermore, the skeleton oil seal III and skeleton oil seal IV form a sealed cavity.

[0018] Furthermore, it includes a drive shaft having a pair of matching retaining ring grooves, the retaining ring grooves being fitted with shaft retaining rings for axial positioning.

[0019] Furthermore, the front end of the drive shaft is provided with a deep groove ball bearing that is interference-fitted with its inner ring.

[0020] Furthermore, the outer ring of the deep groove ball bearing is fitted with a clearance fit at the bearing bore of the large oil seal seat, and the large oil seal seat is provided with a retaining ring groove and a retaining ring II for the bore is installed.

[0021] Furthermore, the large oil seal seat is connected to the bent plate by an internal hexagon screw, and the drive shaft is connected to the motor after the key and sleeve are fitted together.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. Using a few fewer parts to simultaneously inspect two pairs of oil seals of different sizes improves inspection efficiency and reduces inspection costs;

[0024] 2. This design incorporates external circulating cooling oil. By adjusting the pressure of the hydraulic pump station's overflow valve, pressureless cooling and pressurized cooling can be achieved.

[0025] 3. This design introduces an observation hole E on the upper part of the large oil seal seat to facilitate observation of the sealing condition between the inner skeleton oil seal lip and the skeleton part;

[0026] 4. This design incorporates a pair of deep groove ball bearings, making the detection mechanism more stable and less prone to displacement during use. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the structure of this utility model.

[0028] Reference numerals: 1. Drive shaft, 2. Retaining ring I for bores, 3. Pipe fitting, 4. Large oil seal seat, 5. Socket head cap screw, 6. Oil seal III, 7. Small oil seal seat, 8. Retaining ring II for bores, 9. Oil seal IV, 10. Socket head cap screw, 11. Bending plate mechanism, 12. Oil seal I, 13. Deep groove ball bearing, 15. Oil seal II, 16. Shaft retaining ring, 17. Flat key, E. Observation hole. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Example 1:

[0031] Please see Figure 1 This utility model provides a technical solution:

[0032] A device for simultaneously testing the performance of two pairs of oil seals of different specifications comprises a large oil seal seat 4, a small oil seal seat 7, a drive shaft 1, a bending plate mechanism 11, a deep groove ball bearing 13, a skeleton oil seal III 6, a skeleton oil seal IV 9, a hole retaining ring 12, a hole retaining ring II 8, a shaft retaining ring 16, and related pipe fittings 3 components.

[0033] A pair of identical bearings and oil seal holes are installed in the large oil seal seat 4. The bearing hole is provided with a retaining ring groove, and a retaining ring I2 and a retaining ring II14 are installed in the retaining ring groove. The retaining ring II14 is used to separate the deep groove ball bearing 13, and the retaining ring I2 serves as an axial limiting oil seal. A pair of identical skeleton oil seal I12, skeleton oil seal II15 and oil seal hole II are installed in the large oil seal seat 4. The oil seal hole II is provided with a matching retaining ring groove, and the retaining ring I2 for axial limiting oil seal is installed inside the retaining ring groove.

[0034] A threaded hole is provided on the upper and lower sides of the large oil seal seat 4, and a pipe joint 3 is installed on the threaded hole. The pipe joint 3 is connected to the inlet and outlet of the hydraulic pump station to introduce circulating cooling oil, with oil entering from port A and exiting from port D.

[0035] An observation hole E is provided on the upper part of the large oil seal seat 4 to facilitate observation of the sealing condition of the inner skeleton oil seal I12 lip and skeleton part;

[0036] Install a pair of identical skeleton oil seals Ⅲ6, skeleton oil seal Ⅳ9 and oil seal hole Ⅲ inside the small oil seal seat 7. Make a retaining ring groove on the oil seal hole Ⅲ and install a hole retaining ring Ⅱ8 in the retaining ring groove. The hole retaining ring Ⅱ8 serves as an axial limiting oil seal.

[0037] A threaded hole is provided on the top and bottom of the small oil seal seat 7. A pipe joint 3 is installed on the threaded hole. The pipe joint 3 introduces circulating cooling oil through the inlet and outlet ports of the hydraulic pump station. Oil enters from port B and exits from port C.

[0038] A pair of identical retaining ring grooves are opened on the drive shaft 1, and a shaft retaining ring 16 is installed in the retaining ring groove. The deep groove ball bearing 13 is installed at the bearing diameter set at the front of the drive shaft, so that the inner ring of the deep groove ball bearing 13 is fitted onto the drive shaft 1 through an interference fit.

[0039] A shaft retaining ring 16 is installed on the retaining ring groove of the drive shaft 1, and a shaft retaining ring II 16 is installed on the retaining ring groove of the large oil seal seat 4 to axially limit the bearing.

[0040] Since the outer ring of the deep groove ball bearing 13 is installed in the bearing hole of the large oil seal seat 4, the outer ring of the deep groove ball bearing 13 is installed on the large oil seal seat 4 with clearance fit. The retaining ring groove of the large oil seal seat 4 is equipped with a retaining ring II 14 to axially limit the deep groove ball bearing 13.

[0041] The large oil seal seat 4 and the small oil seal seat 7 are connected together with a countersunk head screw 5 after the locating joint is fitted, thus completing the assembly. The oil seal detection device and the bending plate mechanism 11 are connected together with a countersunk head screw 5 after the locating joint is fitted. The oil seal detection device is connected to the motor through a flat key 17 and a sleeve for transmission.

[0042] Example 2:

[0043] The difference between this and Example 1 is that the skeleton oil seal I12 and skeleton oil seal II15 form a sealing cavity, and the skeleton oil seal III6 and skeleton oil seal IV9 form a sealing cavity. The two sealing cavities are independent and are used to ensure the sealing effect.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A device for simultaneously testing the performance of two pairs of oil seals of different specifications, comprising a large oil seal seat (4), characterized in that: The large oil seal seat (4) is equipped with a pair of identical bearing holes and oil seal holes; The bearing hole is provided with a matching retaining ring groove, and a retaining ring I (2) for separating the deep groove ball bearing (13) is installed inside the retaining ring groove; The large oil seal seat (4) is equipped with a pair of identical skeleton oil seal I (12), skeleton oil seal II (15) and oil seal hole II; The oil seal hole II is provided with a matching retaining ring groove, and a retaining ring I(2) for axial limiting oil seal is installed inside the retaining ring groove; The large oil seal seat (4) is provided with a small oil seal seat (7); The small oil seal seat (7) is equipped with a pair of identical skeleton oil seals III (6), skeleton oil seals IV (9) and oil seal holes III; The oil seal hole Ⅲ is provided with a matching retaining ring groove, and a retaining ring Ⅱ (8) for axially limiting the oil seal is installed in the retaining ring groove.

2. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 1, characterized in that: The large oil seal seat (4) is provided with a pipe joint (3) for connecting the inlet and outlet of the hydraulic pump station and introducing circulating cooling oil, and the two are threadedly connected.

3. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 1, characterized in that: A sealing cavity is formed between the skeleton oil seal I (12) and the skeleton oil seal II (15).

4. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 1, characterized in that: The upper part of the large oil seal seat (4) is provided with an observation hole (E) for easy observation of the lip of the skeleton oil seal I (12) and the sealing condition of the skeleton.

5. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 1, characterized in that: The small oil seal seat (7) is provided with a pipe joint (3) for connecting the inlet and outlet of the hydraulic pump station and introducing circulating cooling oil, and the two are threadedly connected.

6. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 1, characterized in that: The skeleton oil seal III (6) and skeleton oil seal IV (9) form a sealed cavity.

7. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 1, characterized in that: It includes a drive shaft (1) having a pair of matching retaining ring grooves, wherein a shaft retaining ring (16) for axial positioning is installed in the retaining ring grooves.

8. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 7, characterized in that: The front end of the drive shaft (1) is provided with a deep groove ball bearing (13) that is interference-fitted with its inner ring.

9. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 8, characterized in that: The outer ring of the deep groove ball bearing (13) is fitted with a clearance fit at the bearing hole of the large oil seal seat (4). The large oil seal seat (4) is provided with a retaining ring groove and is fitted with a retaining ring II (8) for the hole.

10. The device for simultaneously detecting the performance of two pairs of oil seals of different specifications according to claim 7, characterized in that: The large oil seal seat (4) is connected to the bent plate (11) by an internal hexagon screw (10), and the flat key (17) of the drive shaft (1) is connected to the motor after being fitted with the sleeve.

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