Oil seal pressure test device

Abstract

The utility model belongs to the technical field of industrial manufacturing, and particularly relates to an oil seal pressure test device which comprises a placing table. A screw rod is rotatably connected to the top of the placement table, a nut is connected to the middle of the screw rod through a screw rod nut pair, a supporting frame is fixedly connected to the side wall of the nut, a pressure barrel is fixedly connected to the end of the supporting frame, a circular hole is formed in the bottom of the pressure barrel, a pressure plate is fixedly connected to the interior of the pressure barrel, and a first supporting rod is fixedly connected to the top of the pressure plate; a second supporting rod is fixedly connected to the top of the pressure barrel, a warping plate is hinged to the end of the second supporting rod, the sealing performance of the oil seal can be effectively detected, whether leakage exists or not can be effectively detected, meanwhile, the pressure plate ascends to enable the oil seal to be subjected to negative pressure detection, and it can be found that the potential sealing performance is reduced in negative pressure detection; therefore, the problem of leakage of the oil seal during use is solved, the maintenance frequency is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial manufacturing, in particular to an oil seal pressure testing device. Background Art

[0002] The oil seal is a device part in the machine that prevents the lubricating oil from leaking out of the joint surface between parts. The requirements for the use of oil seals are also very high. A pressure test is required before the oil seal is used.

[0003] The oil seal pressure test is a device used to assess whether the oil seal meets the use standards, and can test the workability and service life of the oil seal. The quality of oil seal use is the main factor in the probability of oil seal leakage. During use, it can be found that the sealing performance of the oil seal is prone to deterioration under negative pressure, resulting in the oil seal being unable to fit tightly with the parts, resulting in leakage problems.

[0004] To this end, the utility model provides an oil seal pressure test device. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an oil seal pressure test device described in the utility model comprises a placing table; a screw is rotatably connected to the top of the placing table, a nut is connected to the middle of the screw through a screw nut pair, a support frame is fixedly connected to the side wall of the nut, a pressure barrel is fixedly connected to the end of the support frame, a circular hole is opened at the bottom of the pressure barrel, a pressure plate is fixedly connected to the inside of the pressure barrel, a first support rod is fixedly connected to the top of the pressure plate, a second support rod is fixedly connected to the top of the pressure barrel, a seesaw is hinged at the end of the second support rod, and both ends of the seesaw are fixedly connected to A pull rope, wherein one end of the pull rope is fixedly connected with a placement plate away from the first support rod, and a limit effect is exerted on the pressure barrel 13 through the screw rod 1, thereby reducing the possibility of the pressure barrel rotating during the test, thereby increasing stability during the test, and effectively testing the pressure that the oil seal can withstand during pressurization, and can effectively detect the sealing performance of the oil seal and whether there is a leakage problem. At the same time, the pressure plate is raised to allow the oil seal to perform negative pressure testing, and potential reduction in sealing performance can be discovered through the negative pressure test, which may lead to leakage of the oil seal during use, thereby reducing the number of repairs and reducing the cost of repairs.

[0007] Preferably, two heating wires are fixedly connected to the bottom of the pressure plate, and a thermometer is fixedly connected to the middle of the pressure plate near the second support rod. The middle part of the thermometer penetrates the pressure plate. Under high temperature conditions, the viscosity of the oil is reduced, the fluidity of the oil is increased, and the oil can more easily penetrate into the sealing port of the oil seal, thereby increasing the effectiveness of oil seal detection, increasing lubricity on the surface of the oil seal, and reducing wear on the oil seal.

[0008] Preferably, a collection box is fixedly connected to the top of the placement table, and a filter is fixedly connected to the middle of the collection box, which can collect the used oil. The used oil is filtered through the filter to effectively filter out impurities in the oil, and the impurities in the oil are reduced from getting stuck in the oil seal when it is reused, preventing it from affecting the sealing performance of the oil seal.

[0009] Preferably, two grooves are provided at the bottom of the pressure barrel, and the two grooves are arranged opposite to each other. A sliding block is slidably connected in the groove, and a sliding plate is fixedly connected to the bottom of the sliding block, thereby increasing the stability of the oil seal during the pressure test, reducing the error caused by the instability of the oil seal during the pressure test, and being able to better evaluate the performance and quality of the oil seal.

[0010] Preferably, a fixing rod is fixedly connected to the top of the placement table, and the fixing rod is fixedly connected to the inside of the collection box, which can fix the inside of the oil seal and increase the stability of the oil seal during the pressure test. Testing oil seals of different sizes can effectively reduce costs.

[0011] Preferably, a plurality of groups of support bars are fixedly connected to the top of the filter, and the support bars are staggered on the top of the filter, which can reduce the splashing problem of oil when it is discharged into the collection box, and reduce the waste caused by oil splashing to the outside of the collection box. Reducing splashing can effectively prevent dirt from forming on the placement table.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The oil seal pressure test device described in the utility model can effectively test the pressure that the oil seal can withstand when pressurized by generating negative pressure inside its pressure barrel, detect the sealing performance of the oil seal and whether there is a leakage problem, and at the same time, the pressure plate can be raised to allow the oil seal to perform negative pressure detection, and potential reduction in sealing performance can be discovered through negative pressure detection, which may lead to leakage problems in the oil seal during use, thereby reducing the number of maintenance and reducing the cost of maintenance.

[0014] 2. The oil seal pressure test device described in the utility model can make the oil more easily penetrate into the sealing port of the oil seal by reducing the viscosity of the oil and increasing the fluidity of the oil under high temperature conditions, thereby increasing the effectiveness of oil seal detection, and can increase the lubricity on the surface of the oil seal and reduce the wear on the oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a stereoscopic diagram of an oil seal pressure test device in the utility model;

[0017] Figure 2 It is a structural schematic diagram of the seesaw in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the pressure barrel in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the collection box in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the sliding plate in the utility model;

[0021] Figure 6 It is a structural schematic diagram of the nut in the utility model;

[0022] In the figure: 1. screw rod; 11. nut; 12. support frame; 13. pressure barrel; 14. pressure plate; 15. first support rod; 16. second support rod; 17. seesaw; 18. pull rope; 19. placement plate; 2. heating wire; 21. thermometer; 3. collection box; 31. filter; 4. sliding block; 41. sliding plate; 5. fixing rod; 6. support bar; 8. placement table; 82. first counterweight block; 83. second counterweight block. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figures 1 to 6As shown, an oil seal pressure test device described in an embodiment of the utility model, the top of the placement table 8 is rotatably connected to a screw rod 1, the middle part of the screw rod 1 is connected to a nut 11 through a screw rod nut pair, the side wall of the nut 11 is fixedly connected to a support frame 12, the end of the support frame 12 is fixedly connected to a pressure barrel 13, the bottom of the pressure barrel 13 is provided with a circular hole, the inside of the pressure barrel 13 is fixedly connected to a pressure plate 14, the top of the pressure plate 14 is fixedly connected to a first support rod 15, the top of the pressure barrel 13 is fixedly connected to a second support rod 16, the end of the second support rod 16 is hingedly connected to a rocker 17, both ends of the rocker 17 are fixedly connected to a pull rope 18, the end of the pull rope 18 away from the first support rod 15 is fixedly connected to a placement plate 19, when working, the oil seal is placed in the pressure barrel 13, and it is tightly attached to the edge of the circular hole at the bottom of the pressure barrel 13 , the pressure barrel 13 is filled with oil and the first counterweight 82 is placed in the pressure plate 14 to increase the pressure inside the pressure barrel 13, and the second counterweight 83 is placed in the placement plate 19, so that the seesaw 17 is tilted to raise the first support rod 15, so that negative pressure is generated inside the pressure barrel 13, and the pressure barrel 13 is restricted by the screw rod 1, thereby reducing the possibility of the pressure barrel rotating during the test, thereby increasing stability during the test, and effectively testing the pressure that the oil seal can withstand during pressurization, and can effectively detect the sealing performance of the oil seal and whether there is a leakage problem. At the same time, the pressure plate 14 is raised to allow the oil seal to undergo negative pressure testing, and potential reduction in sealing performance can be found through negative pressure testing, resulting in leakage problems in the oil seal during use, thereby reducing the number of repairs and reducing the cost of repairs.

[0025] like Figure 2 As shown, two heating wires 2 are fixedly connected to the bottom of the pressure plate 14, and a thermometer 21 is fixedly connected to the middle of the pressure plate 14 near the second support rod 16. The middle of the thermometer 21 passes through the pressure plate 14. When working, the heating wire 2 heats up the oil in the pressure barrel 13, and the thermometer 21 can detect the internal oil temperature of the pressure barrel 13. Under high temperature conditions, the viscosity of the oil is reduced, the fluidity of the oil is increased, and the oil can penetrate into the sealing port of the oil seal more easily, thereby increasing the effectiveness of oil seal detection, and increasing the lubricity on the surface of the oil seal to reduce the wear on the oil seal.

[0026] like Figures 1 to 5 As shown, a collecting box 3 is fixedly connected to the top of the placing table 8, and a filter screen 31 is fixedly connected to the middle of the collecting box 3. During operation, after the oil seal detection is completed, the oil is discharged from the bottom of the pressure barrel 13 and flows into the collecting box 3. The oil is filtered by the filter screen 31, and the used oil can be collected. The used oil is filtered by the filter screen 31, and impurities in the oil are effectively filtered out. When the oil is reused, the impurities in the oil are reduced from being stuck in the oil seal to prevent affecting the sealing of the oil seal.

[0027] like Figure 5As shown, two grooves are provided at the bottom of the pressure barrel 13, and the two grooves are arranged opposite to each other. The sliding block 4 is slidably connected in the groove, and a sliding plate 41 is fixedly connected to the bottom of the sliding block 4. When working, the sliding plate 41 is slid and pushed to the bottom of the oil seal, thereby increasing the stability of the oil seal during the pressure test, reducing the error caused by the instability of the oil seal during the pressure test, and being able to better evaluate the performance and quality of the oil seal.

[0028] like Figures 1 to 4 As shown, a fixing rod 5 is fixedly connected to the top of the placing table 8, and the fixing rod 5 is fixedly connected to the inside of the collecting box 3. During operation, oil seals of different sizes are placed on the fixing rod 5, and the oil seals are fixed by pressure barrels 13 of different sizes. This can fix the inside of the oil seal, increase the stability of the oil seal during the pressure test, and testing oil seals of different sizes can effectively reduce costs.

[0029] like Figures 1 to 4 As shown, a plurality of groups of support bars 6 are fixedly connected to the top of the filter 31, and the support bars 6 are staggered on the top of the filter 31. During operation, when the oil is discharged from the bottom of the pressure barrel 13, the support bars 6 prevent the oil from splashing when dripping, which can reduce the splashing problem of the oil when it is discharged into the collection box 3, and reduce the waste caused by oil splashing to the outside of the collection box 3. Reducing splashing can effectively prevent dirt from being generated on the placement table 8.

[0030] like Figure 6 As shown, the screw rod 1 and the nut 11 are in linear motion, and the nut 11 can rotate inside. During operation, the nut 11 is moved up and down by rotating the screw rod 1, so that the pressure barrel 13 can be moved flexibly, and the oil seal can be fixed more conveniently and quickly, and can be easily adjusted.

[0031] During operation, the oil seal is placed in the pressure barrel 13 and is tightly attached to the edge of the circular hole at the bottom of the pressure barrel 13. The pressure barrel 13 is filled with oil and the first counterweight 82 is placed in the pressure plate 14 to increase the pressure inside the pressure barrel 13. The second counterweight 83 is placed in the placement plate 19, and the rocker 17 is tilted to raise the first support rod 15 to generate negative pressure inside the pressure barrel 13. The heating wire 2 heats up the oil in the pressure barrel 13, and the thermometer 21 can detect the oil temperature inside the pressure barrel 13. When the oil seal detection is completed, the oil is discharged from the bottom of the pressure barrel 13 and flows into the collection box 3. The oil is filtered through the filter screen 31, and the sliding plate 41 is slid and pushed to the bottom of the oil seal. Oil seals of different sizes are placed on the fixing rod 5 and fixed by pressure barrels 13 of different sizes. When the oil is discharged from the bottom of the pressure barrel 13, the support bar 6 is used to prevent the oil from splashing when dripping, and the nut 11 is rotated internally to move up and down.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An oil seal pressure test device, comprising a placement table (8); characterized in that: The top of the placement table (8) is rotatably connected to a screw rod (1), the middle of the screw rod (1) is connected to a nut (11) via a screw rod nut pair, the side wall of the nut (11) is fixedly connected to a support frame (12), the end of the support frame (12) is fixedly connected to a pressure barrel (13), the bottom of the pressure barrel (13) is provided with a circular hole, the inside of the pressure barrel (13) is fixedly connected to a pressure plate (14), the top of the pressure plate (14) is fixedly connected to a first support rod (15), the top of the pressure barrel (13) is fixedly connected to a second support rod (16), the end of the second support rod (16) is hingedly connected to a seesaw (17), both ends of the seesaw (17) are fixedly connected to a pull rope (18), and the end of the pull rope (18) away from the first support rod (15) is fixedly connected to a placement plate (19).

2. The oil seal pressure test device according to claim 1, characterized in that: Two electric heating wires (2) are fixedly connected to the bottom of the pressure plate (14), and a thermometer (21) is fixedly connected to the middle of the pressure plate (14) near the second support rod (16), and the middle of the thermometer (21) passes through the pressure plate (14).

3. The oil seal pressure test device according to claim 2, characterized in that: The top of the placement table (8) is fixedly connected to a collection box (3), and the middle of the collection box (3) is fixedly connected to a filter screen (31).

4. The oil seal pressure test device according to claim 3, characterized in that: The bottom of the pressure barrel (13) is provided with two grooves, which are arranged opposite to each other. A sliding block (4) is slidably connected in the grooves, and a sliding plate (41) is fixedly connected to the bottom of the sliding block (4).

5. The oil seal pressure test device according to claim 4, characterized in that: A fixing rod (5) is fixedly connected to the top of the placement platform (8), and the fixing rod (5) is fixedly connected to the inside of the collection box (3).

Images