A device for detecting static air tightness of rubber oil seal

Abstract

The utility model discloses a kind of rubber oil seal static air tightness detection device, including base, the upper end left side fixed installation guide rail of base, the upper end front and back sliding installation first slider of guide rail, the upper end of first slider is provided with detection assembly, the upper end right side of base is provided with two groups of sliding slot, the inside left and right sliding installation second slider of sliding slot, the upper end fixed installation second vertical board of second slider, the left end fixed installation detection cylinder of second vertical board.The utility model places rubber oil seal in the installation groove of mounting sleeve, then the cooperation of screw portion is realized the overall detachable installation of mounting sleeve, when using, the cooperation of the two groups of detection cylinder and front and back sliding installation test shaft set, can effectively improve detection efficiency, one group is tested simultaneously another group unloads and loads, so that device whole can uninterruptedly work.

Description

Technical Field

[0001] This utility model relates to the field of oil seal testing technology, and in particular to a device for testing the static airtightness of rubber oil seals. Background Technology

[0002] A rubber oil seal is an annular cover composed of one or more parts, fixed to one ring or washer of a bearing and contacting or forming a narrow labyrinth gap with another ring or washer to prevent lubricating oil leakage and foreign matter intrusion. Before installation, airtightness testing is required for rubber oil seals, but existing airtightness testing devices still have shortcomings.

[0003] For example, Chinese patent CN220063309U discloses a device for static airtightness testing of rubber oil seals, including a base, a sliding plate, and a fixing plate. The sliding plate is slidably disposed on one side of the upper surface of the base, and the fixing plate is fixedly connected to the other side of the upper surface of the base. A test shaft is rotatably disposed on the side of the sliding plate near the fixing plate, and a wind force detection mechanism is slidably disposed around the periphery of the test shaft. A detection cylinder is fixedly connected to the side of the fixing plate near the sliding plate, and an air pump communicating with the detection cylinder is fixedly connected to the other side of the fixing plate. Through the setting of the test shaft, both static and dynamic airtightness testing can be performed. When the rubber oil seal seals two relatively rotating entities, dynamic airtightness testing can be performed through the rotation of the test shaft, effectively ensuring the airtightness of the rubber oil seal, expanding the applicability of airtightness testing, and improving efficiency.

[0004] Existing technology requires replacing the mounting sleeves with different oil seals when testing different rubber oil seals. This process involves loosening and tightening multiple fixing bolts sequentially, which is time-consuming and labor-intensive, thus affecting the testing efficiency of rubber oil seals. Utility Model Content

[0005] In order to overcome the above-mentioned defects in the prior art, this utility model provides a device for testing the static airtightness of rubber oil seals.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a device for static airtightness testing of rubber oil seals, including a base, a guide rail fixedly installed on the upper left side of the base, a first slider slidably installed on the upper end of the guide rail, a testing component provided on the upper end of the first slider, two sets of sliding grooves provided on the upper right side of the base, a second slider slidably installed on the inside of the sliding grooves, a second upright plate fixedly installed on the upper end of the second slider, a testing cylinder fixedly installed on the left end of the second upright plate, a mounting sleeve detachably installed at the left opening of the testing cylinder through a threaded part, a mounting groove provided inside the mounting sleeve, and a rubber oil seal placed inside the mounting groove.

[0007] Furthermore, a first motor is fixedly installed on the outer side of the left end of the first slider, and a rotating shaft is fixedly connected to the power output shaft of the first motor. The rotating shaft is movably installed inside the first slider, and a gear is fixedly installed on the rotating shaft. A rack is fitted to the lower end of the gear, and the rack is fixedly installed on the upper end of the guide rail.

[0008] Furthermore, a set of limiting plates is fixedly installed at each of the front and rear ends of the guide rail, and the limiting plates are used to limit the movement of the first slider.

[0009] Furthermore, the detection component includes a first upright plate, which is fixedly installed on the upper end of the first slider. A second motor is fixedly installed on the left side of the first upright plate, and the power output shaft of the second motor is fixedly connected to the test shaft through a coupling.

[0010] Furthermore, several sets of electric telescopic rods are fixedly installed on the outer right end of the first upright plate, and wind detectors are fixedly installed on the telescopic ends of the electric telescopic rods. The wind detectors are located on the outer side of the test axis.

[0011] Furthermore, a third motor is fixedly installed on the outer right end of the base, and a lead screw is fixedly connected to the power output shaft of the third motor. The lead screw is movably installed inside the slide groove, and a second slider is movably installed on the lead screw.

[0012] Furthermore, an air pump is installed on the outer right end of the detection cylinder, and a pressure sensor is installed in the hollow part inside the detection cylinder.

[0013] Furthermore, a sealing gasket is provided between the mounting sleeve and the detection cylinder.

[0014] The beneficial effects of this utility model are: by placing the rubber oil seal in the mounting groove of the mounting sleeve, and then achieving the overall detachable installation of the mounting sleeve through the engagement of the threaded part, the detection efficiency can be effectively improved by the cooperation of the two sets of detection cylinders and the front and rear sliding test shafts during use. One set is testing while the other set is unloading and loading, so that the whole device can work continuously. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a top view of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a partial frontal structural cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the guide rail of this utility model.

[0017] In the diagram: 1. Base, 2. Guide rail, 3. Rack, 4. Gear, 5. First slider, 6. First motor, 7. Rotating shaft, 8. Limiting plate, 9. First upright plate, 10. Electric telescopic rod, 11. Wind power detector, 12. Second motor, 13. Test shaft, 14. Slide groove, 15. Third motor, 16. Lead screw, 17. Second slider, 18. Second upright plate, 19. Detection cylinder, 20. Air pump, 21. Pressure sensor, 22. Mounting sleeve, 23. Threaded part, 24. Mounting groove, 25. Rubber oil seal, 26. Sealing gasket. Detailed Implementation

[0018] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0019] like Figure 1 , Figure 2 and Figure 4 As shown, this utility model includes a base 1, a guide rail 2 fixedly installed on the upper left side of the base 1, a first slider 5 slidably installed on the upper end of the guide rail 2, a first motor 6 fixedly installed on the outer left side of the first slider 5 by bolts, a rotating shaft 7 fixedly connected to the power output shaft of the first motor 6, the rotating shaft 7 being movably installed inside the first slider 5 by bearings, a gear 4 fixedly installed on the rotating shaft 7, a rack 3 being fitted on the lower end of the gear 4, and the rack 3 being fixedly installed on the upper end of the guide rail 2 by bolts. By starting the first motor 6 to drive the gear 4 to rotate, the front and rear positions of the first slider 5 can be adjusted by the cooperation of the gear 4 and the rack 3.

[0020] like Figure 1 As shown, a set of limiting plates 8 are fixedly installed at each of the front and rear ends of the guide rail 2. The limiting plates 8 are used to limit the movement of the first slider 5.

[0021] like Figure 1 As shown, a detection component is provided at the upper end of the first slider 5. The detection component includes a first upright plate 9, which is fixedly installed at the upper end of the first slider 5. A second motor 12 is fixedly installed on the left side of the first upright plate 9. The power output shaft of the second motor 12 is fixedly connected to the test shaft 13 through a coupling. Several sets of electric telescopic rods 10 are fixedly installed on the outer side of the right end of the first upright plate 9. A wind detector 11 is fixedly installed at the telescopic end of the electric telescopic rod 10. The wind detector 11 is located outside the test shaft 13 and is used to detect whether there is air leakage.

[0022] like Figures 1 to 3 As shown, two sets of sliding grooves 14 are provided on the upper right side of the base 1. The second slider 17 is slidably installed inside the sliding groove 14. The third motor 15 is fixedly installed on the outer side of the right end of the base 1. The power output shaft of the third motor 15 is fixedly connected to the lead screw 16. The lead screw 16 is movably installed inside the sliding groove 14. The second slider 17 is movably installed on the lead screw 16.

[0023] like Figures 1 to 3 As shown, a second vertical plate 18 is fixedly installed on the upper end of the second slider 17, and a detection cylinder 19 is fixedly installed on the left end of the second vertical plate 18. An air pump 20 is provided on the outer side of the right end of the detection cylinder 19. A pressure sensor 21 is provided in the hollow part inside the detection cylinder 19. An installation sleeve 22 is detachably installed on the left opening of the detection cylinder 19 through a threaded part 23. A sealing gasket 26 is provided between the installation sleeve 22 and the detection cylinder 19. An installation groove 24 is provided inside the installation sleeve 22, and a rubber oil seal 25 is placed inside the installation groove 24.

[0024] In use, the rubber oil seal 25 is placed in the mounting groove 24 of the mounting sleeve 22, and the mounting sleeve 22 is detachably installed by the engagement of the threaded part 23. In use, the two sets of detection cylinders 19 and the test shafts 13 that are slidably installed in the front and rear can effectively improve the detection efficiency. One set is testing while the other set is unloading and loading, so that the whole device can work continuously.

[0025] The above embodiments are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. The scope of protection of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present utility model.

Claims

1. A device for testing the static airtightness of rubber oil seals, comprising a base (1), characterized in that: A guide rail (2) is fixedly installed on the upper left side of the base (1). A first slider (5) is slidably installed on the upper end of the guide rail (2). A detection component is provided on the upper end of the first slider (5). Two sets of sliding grooves (14) are provided on the upper right side of the base (1). A second slider (17) is slidably installed on the inside of the sliding grooves (14). A second upright plate (18) is fixedly installed on the upper end of the second slider (17). A detection cylinder (19) is fixedly installed on the left end of the second upright plate (18). An installation sleeve (22) is detachably installed on the left opening of the detection cylinder (19) through a threaded part (23). An installation groove (24) is provided inside the installation sleeve (22). A rubber oil seal (25) is placed inside the installation groove (24).

2. The device for testing the static airtightness of a rubber oil seal according to claim 1, characterized in that, A first motor (6) is fixedly installed on the outer side of the left end of the first slider (5). A rotating shaft (7) is fixedly connected to the power output shaft of the first motor (6). The rotating shaft (7) is movably installed inside the first slider (5). A gear (4) is fixedly installed on the rotating shaft (7). A rack (3) is installed at the lower end of the gear (4). The rack (3) is fixedly installed on the upper end of the guide rail (2).

3. The device for testing the static airtightness of a rubber oil seal according to claim 2, characterized in that, A set of limiting plates (8) are fixedly installed at each of the front and rear ends of the guide rail (2). The limiting plates (8) are used to limit the movement of the first slider (5).

4. The device for testing the static airtightness of a rubber oil seal according to claim 3, characterized in that, The detection assembly includes a first upright plate (9), which is fixedly installed on the upper end of the first slider (5). A second motor (12) is fixedly installed on the left side of the first upright plate (9), and the power output shaft of the second motor (12) is fixedly connected to the test shaft (13) through a coupling.

5. The device for testing the static airtightness of a rubber oil seal according to claim 4, characterized in that, Several sets of electric telescopic rods (10) are fixedly installed on the outer right side of the first upright plate (9). A wind detector (11) is fixedly installed on the telescopic end of the electric telescopic rod (10). The wind detector (11) is located on the outer side of the test shaft (13).

6. The device for testing the static airtightness of a rubber oil seal according to claim 1, characterized in that, A third motor (15) is fixedly installed on the outer right side of the base (1). A lead screw (16) is fixedly connected to the power output shaft of the third motor (15). The lead screw (16) is movably installed inside the slide groove (14). A second slider (17) is movably installed on the lead screw (16).

7. The device for testing the static airtightness of a rubber oil seal according to claim 1, characterized in that, An air pump (20) is provided on the outer side of the right end of the detection cylinder (19), and a pressure sensor (21) is provided in the hollow part inside the detection cylinder (19).

8. The device for testing the static airtightness of a rubber oil seal according to claim 1, characterized in that, A sealing gasket (26) is provided between the mounting sleeve (22) and the detection cylinder (19).

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