Bearing sealing performance testing device

Abstract

The utility model discloses a bearing sealing performance testing device which comprises a detection piece and a water injection piece, the detection piece comprises a support and a detection cylinder, the bottom surface of the support is vertically provided with a fixing screw in a threaded penetrating mode, the support is fixedly connected through the fixing screw, the top surface of the support is vertically fixed with the detection cylinder, and the top end of the detection cylinder is open. An inner sealing gasket is fixed to the inner wall of the detection cylinder, an outer sealing gasket is fixed to the outer wall of the detection cylinder, a bearing body is vertically inserted into the detection cylinder, a through hole is formed in the bottom end of the detection cylinder in a penetrating mode, and a water receiving cylinder is vertically fixed to the bottom face of the detection cylinder. The problems that sealing devices are not arranged between an existing bearing outer ring and a detection cylinder and between an existing bearing inner ring and an output rotating shaft, water overflows outwards in the detection process, water overflows outwards in gaps in the water in the detection process, and the accuracy of bearing sealing performance detection is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing testing equipment, and more specifically to a bearing sealing performance testing device. Background Art

[0002] Sealed bearings are generally used in places with poor working conditions and difficult maintenance, and require a long service life of the bearings. For contact seals, how to ensure the long-term effectiveness of the sealing parts and ensure that the surfaces of the sealed contact parts are not worn, so sealed bearings need to be tested for sealing before use.

[0003] The existing announcement number is CN207556777U, a bearing water environment sealing performance tester, including a test seat, a test cavity with an opening on one side of the test seat, a water injection and pressurization port connected to the test cavity, a support step for supporting one end of the bearing to be tested is provided at the opening of the test cavity, and a sealing ring is provided between the support step and the bearing to be tested, and a test pressure cover pressed on the other end of the bearing to be tested is also fixed at the opening of the test cavity, an axial hole is provided at the center of the test pressure cover, a rotating shaft is provided in the axial hole, one end of the rotating shaft extends into the bearing to be tested and is connected to the The bearing to be tested has an interference fit, and the other end of the rotating shaft is connected to the output end of the motor. Water is added to the test cavity through the water injection and pressure port to form a pressurized water environment. The pressure of the water environment can be monitored by the pressure gauge on the pressure measuring port. Then the motor is started, and the motor drives the rotating shaft to rotate. The speed of the motor can be adjusted by the speed controller. In this way, one side of the bearing to be tested is exposed to the air, and the other side is in the test seat. The motor is set to rotate at different speeds, and the test cavity on one side of the bearing to be tested is loaded with different pressures. In this way, the waterproof performance of the bearing can be tested under customer working conditions.

[0004] However, when the above-mentioned bearings are tested for sealing performance in a water environment, there is a lack of sealing devices between the outer ring of the bearing and the test tube and between the inner ring of the bearing and the output shaft, which causes water to overflow during the test, thereby causing water to overflow from the gap in the water during the test, affecting the accuracy of testing the bearing sealing performance. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a bearing sealing performance testing device, which overcomes the above-mentioned technical defects.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A bearing sealing performance testing device comprises a detection component and a water injection component, the detection component comprises a bracket and a detection cylinder, a fixing screw is installed through a vertical thread on the bottom surface of the bracket, and the bracket is fixedly connected by the fixing screw, a detection cylinder is vertically fixed on the top surface of the bracket, and the top end of the detection cylinder is opened, an inner sealing gasket is fixed on the inner wall of the detection cylinder, and an outer sealing gasket is fixed on the outer wall of the detection cylinder, a bearing body is vertically inserted into the inside of the detection cylinder, a through hole is penetrated at the bottom end of the detection cylinder, and a water receiving cylinder is vertically fixed on the bottom surface of the detection cylinder, the water injection component comprises a water injection cylinder shell, the bottom end surface of the water injection cylinder shell is opened, and a water pipe is penetrated and fixed on the top surface of the water injection cylinder shell, and a water pump is connected and fixed on the water pipe.

[0010] Furthermore, a motor is vertically fixed on the bracket, and a driving shaft is vertically fixed to the output end of the motor, and the driving shaft passes through the water receiving cylinder and is inserted into the interior of the detection cylinder.

[0011] Furthermore, a screw groove column is vertically fixed on the bottom surface of the bearing body, and the screw groove column passes through the bottom end surface of the detection tube.

[0012] Furthermore, a screw groove is vertically opened at the bottom end of the screw groove column, and a locking bolt is threadedly assembled in the screw groove of the screw groove column.

[0013] Furthermore, a pressure gauge is installed on the outer wall of the water injection cylinder shell, and a sealing strip is fixed to the bottom end of the inner wall of the water injection cylinder shell, and the sealing strip is pressed on the outer sealing gasket.

[0014] Furthermore, hydraulic rods are vertically fixed on both sides of the bracket, and the output ends of the hydraulic rods are fixed on the outer wall of the water injection cylinder shell.

[0015] Furthermore, a hole ring is horizontally fixed on the lower side of the outer wall of the detection tube, and a plurality of plug posts are evenly and vertically fixed on the bottom surface of the water injection tube shell, and the plurality of plug posts are vertically plugged into the hole ring.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] During use, the bearing body to be inspected is inserted into the inspection cylinder. The outer ring of the bearing body squeezes the inner sealing gasket to increase the sealing of the bearing body inserted into the inspection cylinder. Then the driving shaft on the motor is inserted into the inner ring of the bearing body. The motor is started to drive the driving shaft to rotate, which is used to drive the bearing body to rotate. The sealing of the bearing body is tested under different speed conditions. Then the hydraulic rod on the bracket is started to push the inspection cylinder upward, so that the inspection cylinder carrying the bearing body is inserted into the water injection cylinder shell. The sealing strip at the bottom of the inner wall of the water injection cylinder shell squeezes the outer sealing gasket to ensure the sealing of the assembly of the water injection cylinder shell and the inspection cylinder. Then the water pump on the water injection cylinder shell is driven to guide water into the water injection cylinder shell through the water guide cylinder. According to the pressure gauge on the outer wall of the water injection cylinder shell, the water pressure in the water injection cylinder shell is controlled to observe whether water flows downward into the water receiving cylinder through the bearing body under different water pressures, thereby observing the sealing of the bearing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model as a whole in a disassembled state;

[0021] Figure 3 It is a schematic diagram of the structure of the detection part in the decomposed state in the implementation of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the detection tube in the disassembled state in the implementation of the utility model;

[0023] Figure 5 It is a schematic structural diagram of the water injection component in a disassembled state in the implementation of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Detection part; 11. Bracket; 111. Fixing screw; 12. Detection tube; 121. Inner sealing gasket; 122. Outer sealing gasket; 123. Water collecting tube; 124. Hole ring; 13. Bearing body; 131. Screw groove column; 132. Locking bolt; 14. Motor; 141. Drive shaft; 15. Hydraulic rod; 2. Water injection part; 21. Water injection tube shell; 22. Pressure gauge; 23. Water guide pipe; 24. Water pump; 25. Sealing strip; 26. Insert column. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5A bearing sealing performance testing device includes a detection component 1 and a water injection component 2. The detection component 1 includes a bracket 11 and a detection tube 12. A fixing screw 111 is installed through a vertical thread on the bottom surface of the bracket 11, and the bracket 11 is fixedly connected by the fixing screw 111. A detection tube 12 is vertically fixed on the top surface of the bracket 11, and the top end of the detection tube 12 is opened. An inner sealing gasket 121 is fixed on the inner wall of the detection tube 12, and an outer sealing gasket 122 is fixed on the outer wall of the detection tube 12. A bearing body 13 is vertically inserted into the interior of the detection tube 12, and a through hole is opened at the bottom end of the detection tube 12, and a water receiving tube 12 is vertically fixed on the bottom surface of the detection tube 12. 3. The water injection part 2 includes a water injection cylinder shell 21, the bottom end surface of the water injection cylinder shell 21 is opened, and a water pipe 23 is fixed through the top surface of the water injection cylinder shell 21, and a water pump 24 is connected and fixed to the water pipe 23. A pressure gauge 22 is installed on the outer wall of the water injection cylinder shell 21, and a sealing strip 25 is fixed to the bottom end of the inner wall of the water injection cylinder shell 21, and the sealing strip 25 is squeezed on the outer sealing gasket 122. Hydraulic rods 15 are vertically fixed on both sides of the bracket 11, and the output end of the hydraulic rod 15 is fixed on the outer wall of the water injection cylinder shell 21. A hole ring 124 is horizontally fixed on the lower side of the outer wall of the detection cylinder 12. A plurality of plugs 26 are evenly and vertically fixed on the bottom surface of the water injection cylinder shell 21, and the plurality of plugs 26 are fixed on the bottom surface of the water injection cylinder shell 21. The plug post 26 is vertically plugged into the hole ring 124, the motor 14 is vertically fixed on the bracket 11, and the output end of the motor 14 is vertically fixed with a drive shaft 141, and the drive shaft 141 passes through the water receiving cylinder 123 and is inserted into the interior of the detection cylinder 12. During use, the bearing body 13 to be detected is inserted into the detection cylinder 12, and the outer ring of the bearing body 13 squeezes the inner sealing gasket 121 to increase the sealing of the bearing body 13 inserted into the detection cylinder 12. Then the drive shaft 141 on the motor 14 is inserted into the inner ring of the bearing body 13, and the motor 14 is started to drive the drive shaft 141 to rotate, which is used to drive the bearing body 13 to rotate, and the bearing body 13 is controlled under different speed conditions. Sealing test, then start the hydraulic rod 15 on the bracket 11 to push the detection cylinder 12 upward, so that the detection cylinder 12 carrying the bearing body 13 is inserted into the water injection cylinder shell 21, and the sealing strip 25 at the bottom of the inner wall of the water injection cylinder shell 21 squeezes the outer sealing gasket 122, thereby ensuring the sealing of the assembly of the water injection cylinder shell 21 and the detection cylinder 12, and then drive the water pump 24 on the water injection cylinder shell 21 to guide water into the water injection cylinder shell 21 through the water guide cylinder 23, and control the water pressure in the water injection cylinder shell 21 according to the pressure gauge 22 on the outer wall of the water injection cylinder shell 21, so as to observe whether water flows downward into the water receiving cylinder 123 through the bearing body 13 under different water pressures, so as to observe the sealing of the bearing body 13.

[0028] See also Figure 3 and Figure 4A screw groove column 131 is vertically fixed on the bottom surface of the bearing body 13, and the screw groove column 131 passes through the bottom end surface of the detection tube 12. A screw groove is vertically opened at the bottom end of the screw groove column 131, and a locking bolt 132 is threadedly assembled in the screw groove of the screw groove column 131. During use, the screw groove column 131 is fixed on the bearing body 13, and the screw groove column 131 is inserted into the bottom end surface of the detection tube 12. Then, the locking bolt 132 at the bottom end of the screw groove column 131 is used to fix the bearing body 13 in the detection tube 12 to maintain the stability of the bearing body 13 installed in the detection tube 12.

[0029] During use, the bearing body 13 to be tested is inserted into the testing tube 12, and the outer ring of the bearing body 13 squeezes the inner sealing gasket 121 to increase the sealing performance of the bearing body 13 inserted into the testing tube 12. Then, the driving shaft 141 on the motor 14 is inserted into the inner ring of the bearing body 13. The motor 14 is started to drive the driving shaft 141 to rotate, which is used to drive the bearing body 13 to rotate. Under different speed conditions, the sealing performance of the bearing body 13 is tested, and then the hydraulic rod 15 on the bracket 11 is started to push the testing tube 12 upward. The detection cylinder 12 carrying the bearing body 13 is inserted into the water injection cylinder shell 21, and the sealing strip 25 at the bottom of the inner wall of the water injection cylinder shell 21 squeezes the outer sealing gasket 122 to ensure the sealing of the assembly of the water injection cylinder shell 21 and the detection cylinder 12. Then, the water pump 24 on the water injection cylinder shell 21 is driven to guide water into the water injection cylinder shell 21 through the water guide cylinder 23. According to the pressure gauge 22 on the outer wall of the water injection cylinder shell 21, the water pressure in the water injection cylinder shell 21 is controlled to observe whether water flows downward into the water receiving cylinder 123 through the bearing body 13 under different water pressures.

[0030] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A bearing sealing performance testing device, characterized in that: The invention comprises a detection component (1) and a water injection component (2), wherein the detection component (1) comprises a bracket (11) and a detection tube (12), a fixing screw (111) is installed through a vertical thread on the bottom surface of the bracket (11), and the bracket (11) is fixedly connected by the fixing screw (111), a detection tube (12) is vertically fixed on the top surface of the bracket (11), and the top end of the detection tube (12) is open, an inner sealing gasket (121) is fixed on the inner wall of the detection tube (12), and the detection tube (12) is fixed to the inner wall of the detection tube (12). An outer sealing gasket (122) is fixed on the outer wall, a bearing body (13) is vertically inserted into the interior of the detection cylinder (12), a through hole is provided at the bottom end of the detection cylinder (12), and a water receiving cylinder (123) is vertically fixed on the bottom surface of the detection cylinder (12), the water injection member (2) comprises a water injection cylinder shell (21), the bottom end surface of the water injection cylinder shell (21) is open, a water guide pipe (23) is fixed through the top surface of the water injection cylinder shell (21), and a water pump (24) is connected and fixed to the water guide pipe (23).

2. A bearing sealing performance testing device according to claim 1, characterized in that: A motor (14) is vertically fixed on the bracket (11), and a driving shaft (141) is vertically fixed to the output end of the motor (14), and the driving shaft (141) passes through the water receiving cylinder (123) and is inserted into the interior of the detection cylinder (12).

3. A bearing sealing performance testing device according to claim 1, characterized in that: A screw groove column (131) is vertically fixed on the bottom surface of the bearing body (13), and the screw groove column (131) is arranged to pass through the bottom end surface of the detection tube (12).

4. A bearing sealing performance testing device according to claim 3, characterized in that: A screw groove is vertically formed at the bottom end of the screw groove column (131), and a locking bolt (132) is threadedly assembled in the screw groove of the screw groove column (131).

5. A bearing sealing performance testing device according to claim 1, characterized in that: A pressure gauge (22) is installed on the outer wall of the water injection cylinder shell (21), and a sealing strip (25) is fixed to the bottom end of the inner wall of the water injection cylinder shell (21), and the sealing strip (25) is pressed onto the outer sealing gasket (122).

6. A bearing sealing performance testing device according to claim 1, characterized in that: Hydraulic rods (15) are vertically fixed on both sides of the bracket (11), and the output ends of the hydraulic rods (15) are fixed on the outer wall of the water injection cylinder shell (21).

7. A bearing sealing performance testing device according to claim 1, characterized in that: A hole ring (124) is horizontally fixed on the lower side of the outer wall of the detection cylinder (12), and a plurality of plug posts (26) are evenly and vertically fixed on the bottom surface of the water injection cylinder shell (21), and the plurality of plug posts (26) are vertically plugged into the hole ring (124).

Images