A floating oil seal sealing performance detection device

Abstract

The present invention belongs to the technical field of oil seal detection, and specifically discloses a floating oil seal sealing performance detection device, which includes a detection table. A motion simulation mechanism is arranged on the top of the detection table, and the motion simulation mechanism is used to simulate a dynamic environment. A pressurizing mechanism is arranged outside the detection table, and the pressurizing mechanism is used to provide air pressure. A pressure stabilizing mechanism is arranged on the top of the detection table, and the pressure stabilizing mechanism is used to stabilize the air pressure. An environment simulation mechanism is arranged outside the motion simulation mechanism, and the environment simulation mechanism is used to simulate a natural environment. The motion simulation mechanism includes a sliding groove. Through the motion simulation mechanism, the sealing condition of the floating oil seal under dynamic conditions is simulated, and the environment simulation mechanism can simulate the sealing condition of the floating oil seal in an environment with high temperature and large dust. Therefore, a device can perform floating oil seal sealing performance detection under various conditions, reducing the transfer time and thus improving the detection efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of oil seal detection, and specifically discloses a floating oil seal sealing performance detection device. Background Art

[0002] A floating oil seal is a special type of mechanical seal, mainly used to provide super sealing performance in harsh working environments, such as multi-coal powder, sediment, water vapor, etc. It is a compact mechanical seal, mainly used in low-speed and heavy-load occasions. The floating oil seal has the advantages of wear resistance, automatic compensation after end face wear, reliable operation, simple structure, etc.

[0003] After the production of the floating oil seal in the prior art, a sealing performance detection device is required to detect the sealing performance of the floating oil seal. However, the current floating oil seal sealing performance detection device generally can only perform single-item detection. If sealing performance detection under other conditions is required, other devices are needed. Therefore, if a more comprehensive sealing performance detection is to be carried out, it is necessary to transfer between various devices, which increases the transfer time and then reduces the detection efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to propose a floating oil seal sealing performance detection device to solve the problem that the floating oil seal sealing performance detection device in the prior art can only perform single-item detection, resulting in the need to add equipment when a more comprehensive sealing performance detection is carried out, thereby increasing the transfer time and reducing the detection efficiency.

[0005] To achieve the above object, the present invention provides a floating oil seal sealing performance detection device, including a detection table. A motion simulation mechanism is arranged on the top of the detection table, and the motion simulation mechanism is used to simulate a dynamic environment. A pressurizing mechanism is arranged outside the detection table, and the pressurizing mechanism is used to provide air pressure. A pressure stabilizing mechanism is arranged on the top of the detection table, and the pressure stabilizing mechanism is used to stabilize the air pressure. An environment simulation mechanism is arranged outside the motion simulation mechanism, and the environment simulation mechanism is used to simulate a natural environment.

[0006] In the above technical solution, preferably, the motion simulation mechanism includes a sliding groove, which is opened inside the top end of the detection table. A sliding seat is slidably connected inside the sliding groove. A motor is fixedly connected to the top of the sliding seat. An externally threaded column is fixedly connected to the output end of the motor. An internally threaded sleeve is fixedly connected to the top of the detection table. The externally threaded column is threadedly connected inside the internally threaded sleeve. A connecting rod is fixedly connected to the side of the externally threaded column away from the motor. An installation head is fixedly connected to the side of the connecting rod away from the externally threaded column. A friction sleeve is arranged outside the installation head. A floating oil seal is fixedly connected to the end of the installation head away from the externally threaded column.

[0007] In the above technical solution, preferably, the pressurizing mechanism includes a fixed outer cylinder, the outside of the fixed outer cylinder is fixedly connected to the outside of the test bench, an active plug is slidably connected inside the fixed outer cylinder, an active inner rod is fixedly connected to one side of the active plug close to the sliding seat, a check valve I is fixedly connected to the end of the active inner rod away from the active plug, a check valve II is fixedly connected to the end of the fixed outer cylinder away from the check valve I, a driving rod is fixedly connected to the outside of the active inner rod, the top of the driving rod is fixedly connected to the outside of the sliding seat, a ventilation pipe is fixedly connected to the end of the check valve II away from the fixed outer cylinder, an exhaust pipe is fixedly connected to the outside of the ventilation pipe, a moving plug is slidably connected inside the exhaust pipe, a connecting column is fixedly connected to one side of the moving plug close to the ventilation pipe, a limiting disc is fixedly connected to one side of the connecting column close to the ventilation pipe, a plurality of ventilation holes are formed inside the limiting disc, a mounting circular plate is fixedly connected to the side of the moving plug away from the ventilation holes, a fixing ring is fixedly connected to the outside of the exhaust pipe, a tension spring is fixedly connected between the mounting circular plate and the fixing ring, the tension spring is sleeved on the outside of the exhaust pipe, and the limiting disc is slidably connected inside the exhaust pipe.

[0008] In the above technical solution, preferably, the voltage stabilizing mechanism includes a voltage stabilizing box, the bottom of the voltage stabilizing box is fixedly connected to the top of the test bench, a mounting pipe seat is fixedly connected to the outside of the voltage stabilizing box, a plurality of limiting sliding grooves are formed in the inner wall of the mounting pipe seat, a sliding plate is slidably connected inside the mounting pipe seat, a plurality of holes are formed in the outer edge inside of the sliding plate, a plurality of limiting sliding blocks are fixedly connected to the outside of the sliding plate, the limiting sliding blocks are slidably connected inside the limiting sliding grooves, a pressure spring is arranged inside the mounting pipe seat, and a pressure gauge is fixedly connected to the top of the voltage stabilizing box.

[0009] In the above technical solution, preferably, the environment simulation mechanism includes an installation cover, the inner side of the installation cover is slidably connected to the outside of the friction sleeve, a plurality of communication holes are opened inside the installation cover, a communication groove is opened on one side of the installation cover away from the pressure stabilizing box, a storage cylinder is fixedly connected to the outside of the installation cover, an air vent valve is fixedly connected to the top of the storage cylinder, an air vent hose is fixedly connected to the top of the air vent valve, one end of the air vent hose away from the storage cylinder is fixedly connected to an automatic valve, the bottom of the automatic valve is fixedly connected to the top of the pressure stabilizing box, a heating wire is arranged inside the installation cover, a placing groove is fixedly connected to the outside of the storage cylinder, two clamping ears are fixedly connected to the outside of the installation cover, a clamping hole is opened inside the clamping ear, an installation cover is fixedly connected to the outside of the friction sleeve, two clamping grooves are opened inside the outer circumference of the installation cover, two clamping frames are fixedly connected to the outside of the installation cover, one side of one of the clamping frames away from the sliding seat is fixedly connected to a fixing cylinder, a limiting sliding disc is slidably connected inside the fixing cylinder, a plug rod is fixedly connected to the middle of the limiting sliding disc, and a return spring is sleeved outside the plug rod.

[0010] In the above technical solution, preferably, the side of the pressure stabilizing box close to the sliding seat is fixedly connected to the side of the friction sleeve away from the sliding seat, and the side of the installation pipe seat away from the pressure stabilizing box is fixedly connected to the side of the ventilation pipe away from the check valve II.

[0011] In the above technical solution, preferably, one end of the pressure spring is fixedly connected inside the limiting chute, and the other end of the pressure spring is fixedly connected to the side of the sliding plate close to the pressure stabilizing box.

[0012] In the above technical solution, preferably, one end of the return spring is fixedly connected inside the fixing cylinder, and the other end of the return spring is fixedly connected to the end of the limiting sliding disc away from the clamping frame.

[0013] In the above technical solution, preferably, a pull ring is fixedly connected to the end of the plug rod away from the clamping frame, and the inner bottom end of the storage cylinder is communicated with the inside of the communication groove.

[0014] In the above technical solution, preferably, the outside of the clamping ear is engaged with the inside of the clamping frame, and the plug rod is engaged with the inside of the clamping hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention simulates the sealing condition of a floating oil seal under dynamic conditions through a motion simulation mechanism, and can simulate the sealing condition of a floating oil seal in an environment with high temperature and large amount of dust through an environment simulation mechanism. Therefore, a device can perform the sealing performance detection of a floating oil seal under various conditions, thus eliminating the need to add equipment and transfer between various devices, reducing the transfer time, and improving the detection efficiency.

[0017] The present invention realizes the operation of the entire device through a power unit, and the structure of the entire device is relatively simple, so the cost is relatively low. Subsequently, the production cost of the equipment can be reduced, and the detection cost can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the present invention;

[0019] Figure 2 is a schematic structural view of the sliding groove of the present invention;

[0020] Figure 3 is a schematic structural view of the sliding seat of the present invention;

[0021] Figure 4 is a schematic structural view of the piston of the present invention;

[0022] Figure 5 is a schematic structural view of the friction sleeve of the present invention;

[0023] Figure 6 is a schematic structural view of the sliding plate of the present invention;

[0024] Figure 7 is a schematic structural view of the limiting disc of the present invention;

[0025] Figure 8 is a schematic structural view of the mounting cover of the present invention;

[0026] Figure 9 is a schematic structural view of the clamping groove of the present invention.

[0027] In the figure: 1. Detection table; 2. Motion simulation mechanism; 201. Sliding groove; 202. Sliding seat; 203. Electric motor; 204. External threaded column; 205. Internal threaded sleeve; 206. Connecting rod; 207. Mounting head; 208. Friction sleeve; 3. Pressurizing mechanism; 301. Fixed outer cylinder; 302. Movable plug; 303. Movable inner rod; 304. Check valve 1; 305. Check valve 2; 306. Driving rod; 307. Vent pipe; 308. Exhaust pipe; 309. Movable plug; 310. Connecting column; 311. Limit disk; 312. Vent hole; 313. Mounting round plate; 314. Fixed ring; 315. Tension spring; 4. Voltage stabilizing mechanism; 401. Voltage stabilizing box; 402. Mounting pipe seat; 403. Limit sliding groove; 404. Sliding plate; 405. Hole; 406. Limit sliding block; 407. Pressure spring; 5. Environment simulation mechanism; 501. Mounting cover; 502. Communication hole; 503. Communication groove; 504. Storage cylinder; 505. Vent valve; 506. Vent hose; 507. Automatic valve; 508. Electric heating wire; 509. Placing groove; 510. Clamping ear; 511. Clamping hole; 512. Mounting cover; 513. Card slot; 514. Card frame; 515. Fixed cylinder; 516. Limit sliding disk; 517. Insert rod; 518. Return spring; 519. Pull ring; 6. Pressure gauge; 7. Floating oil seal. Detailed implementation manners

[0028] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0029] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0030] As Figures 1-9 shown, a floating oil seal sealing performance detection device includes a detection table 1. A motion simulation mechanism 2 is arranged on the top of the detection table 1. The motion simulation mechanism 2 is used to simulate a dynamic environment. A pressurizing mechanism 3 is arranged outside the detection table 1. The pressurizing mechanism 3 is used to provide air pressure. A voltage stabilizing mechanism 4 is arranged on the top of the detection table 1. The voltage stabilizing mechanism 4 is used to stabilize the air pressure. An environment simulation mechanism 5 is arranged outside the motion simulation mechanism 2. The environment simulation mechanism 5 is used to simulate a natural environment.

[0031] The motion simulation mechanism 2 includes a sliding groove 201 which is opened inside the top of the detection table 1. A sliding seat 202 is slidably connected inside the sliding groove 201. After the sliding seat 202 slides inside the sliding groove 201, the sliding stability of the sliding seat 202 can be maintained. A motor 203 is fixedly connected to the top of the sliding seat 202. An external thread column 204 is fixedly connected to the output end of the motor 203. An internal thread sleeve 205 is fixedly connected to the top of the detection table 1. The cooperation of the external thread column 204 and the internal thread sleeve 205 can enable the external thread column 204 to move when it rotates. The external thread column 204 is threadedly connected inside the internal thread sleeve 205. A connecting rod 206 is fixedly connected to the side of the external thread column 204 away from the motor 203. An installation head 207 is fixedly connected to the side of the connecting rod 206 away from the external thread column 204. A friction sleeve 208 is arranged outside the installation head 207. A floating oil seal 7 is fixedly connected to the end of the installation head 207 away from the external thread column 204. When the motor 203 is started, after the output end of the motor 203 rotates, it can drive the external thread column 204 to rotate. After the external thread column 204 rotates, it can move in the direction of the voltage stabilizing mechanism 4 under the cooperation of the internal thread sleeve 205. At the same time, it can also drive the connecting rod 206 to rotate. When the connecting rod 206 rotates, it can drive the installation head 207 to rotate and can drive the installation head 207 to move in the direction of the voltage stabilizing mechanism 4. The floating oil seal 7 is driven by the installation head 207 to rotate and move in the direction of the voltage stabilizing mechanism 4. If the side of the external thread column 204 close to the motor 203 moves to one side of the internal thread sleeve 205, the motor 203 can be controlled to rotate in the reverse direction. Subsequently, it can drive the external thread column 204, the connecting rod 206 and the installation head 207 to rotate in the reverse direction. At the same time, under the cooperation of the internal thread sleeve 205, it can force the external thread column 204, the connecting rod 206 and the installation head 207 to move in the direction of the sliding seat 202. Subsequently, the dynamic simulation of the rotation and sliding of the floating oil seal 7 can be realized.

[0032] The pressurizing mechanism 3 includes a fixed outer cylinder 301, the outside of the fixed outer cylinder 301 is fixedly connected to the outside of the test bench 1, a movable plug 302 is slidably connected inside the fixed outer cylinder 301, a movable inner rod 303 is fixedly connected to the side of the movable plug 302 close to the sliding seat 202, and when the movable inner rod 303 and the movable plug 302 slide inside the fixed outer cylinder 301, flowing gas can be generated. One-way valve 1 304 is fixedly connected to the end of the movable inner rod 303 away from the movable plug 302, one-way valve 2 305 is fixedly connected to the end of the fixed outer cylinder 301 away from the one-way valve 1 304, the one-way valve 1 304 and the one-way valve 2 305 conduct one-way ventilation. A driving rod 306 is fixedly connected to the outside of the movable inner rod 303, the top of the driving rod 306 is fixedly connected to the outside of the sliding seat 202, a ventilation pipe 307 is fixedly connected to the end of the one-way valve 2 305 away from the fixed outer cylinder 301, and the ventilation pipe 307 plays a role in connecting and ventilating. An exhaust pipe 308 is fixedly connected to the outside of the ventilation pipe 307, a movable plug 309 is slidably connected inside the exhaust pipe 308, and the movable plug 309 can block the inside of the exhaust pipe 308, thereby preventing the gas in the ventilation pipe 307 from being discharged. A connecting column 310 is fixedly connected to the side of the movable plug 309 close to the ventilation pipe 307, and the connecting column 310 plays a connecting role. A limiting disk 311 is fixedly connected to the side of the connecting column 310 close to the ventilation pipe 307, and the limiting disk 311 can maintain the sliding stability of the movable plug 309. A plurality of ventilation holes 312 are opened inside the limiting disk 311, and the ventilation holes 312 can facilitate the discharge of gas. An installation circular plate 313 is fixedly connected to the side of the movable plug 309 away from the ventilation holes 312, a fixing ring 314 is fixedly connected to the outside of the exhaust pipe 308, a tension spring 315 is fixedly connected between the installation circular plate 313 and the fixing ring 314, and the installation circular plate 313 and the fixing ring 314 can play a role in installing the tension spring 315. The tension spring 315 is sleeved on the outside of the exhaust pipe 308, and the limiting disk 311 is slidably connected inside the exhaust pipe 308. When the sliding seat 202 moves back and forth, the driving rod 306 can be driven to move back and forth, so that the movable inner rod 303 and the movable plug 302 can be driven to move back and forth. When the movable inner rod 303 moves towards the ventilation pipe 307, the one-way valve 1 304 closes and the one-way valve 2 305 opens, so that the air inside the fixed outer cylinder 301 can be squeezed into the inside of the ventilation pipe 307. When the movable inner rod 303 moves away from the ventilation pipe 307, the one-way valve 2 305 closes and the one-way valve 1 304 opens. At this time, when the movable inner rod 303 and the movable plug 302 move away from the ventilation pipe 307, the outside air can be inhaled into the inside of the fixed outer cylinder 301 through the one-way valve 1 304. When the air pressure inside the voltage stabilizing mechanism 4 is too high and the gas can no longer be filled into the inside of the voltage stabilizing mechanism 4, the gas will push the movable plug 309 to move away from the ventilation pipe 307 and stretch the tension spring 315.After the moving plug 309 is completely moved out of the interior of the exhaust pipe 308, the gas will be discharged through the exhaust pipe 308. When the air in the vent pipe 307 stops discharging from the exhaust pipe 308, under the action of the tension spring 315, the mounting circular plate 313 can be pulled to move towards the vent pipe 307, and the moving plug 309 is moved back into the interior of the exhaust pipe 308, thereby preventing the gas from being discharged from the interior of the exhaust pipe 308.

[0033] The voltage stabilizing mechanism 4 includes a voltage stabilizing box 401 which can store gas. The bottom of the voltage stabilizing box 401 is fixedly connected to the top of the detection table 1. An installation pipe seat 402 is fixedly connected to the outside of the voltage stabilizing box 401, which provides an installation position. A plurality of limiting sliding grooves 403 are provided on the inner wall of the installation pipe seat 402. A sliding plate 404 is slidably connected inside the installation pipe seat 402. A plurality of holes 405 are provided inside the outer edge of the sliding plate 404. A plurality of limiting sliding blocks 406 are fixedly connected to the outside of the sliding plate 404. The cooperation between the limiting sliding grooves 403 and the limiting sliding blocks 406 can ensure the stability of the sliding of the sliding plate 404. The limiting sliding blocks 406 are slidably connected inside the limiting sliding grooves 403. A pressure spring 407 is arranged inside the installation pipe seat 402. A pressure gauge 6 is fixedly connected to the top of the voltage stabilizing box 401. One side of the voltage stabilizing box 401 close to the sliding seat 202 is fixedly connected to the side of the friction sleeve 208 away from the sliding seat 202. One side of the installation pipe seat 402 away from the voltage stabilizing box 401 is fixedly connected to the side of the ventilation pipe 307 away from the check valve II 305. One end of the pressure spring 407 is fixedly connected inside the limiting sliding groove 403, and the other end of the pressure spring 407 is fixedly connected to the side of the sliding plate 404 close to the voltage stabilizing box 401. When the gas in the ventilation pipe 307 enters the inside of the voltage stabilizing box 401, the gas will push the sliding plate 404 to move towards the voltage stabilizing box 401. When the holes 405 on the sliding plate 404 are not blocked by the installation pipe seat 402, the gas will enter the inside of the installation pipe seat 402 through the holes 405 and enter the inside of the voltage stabilizing box 401 through the installation pipe seat 402. After there is no gas entering the inside of the voltage stabilizing box 401 from the inside of the ventilation pipe 307, under the action of the pressure spring 407, the sliding plate 404 can be driven to move towards the ventilation pipe 307, so that the inner wall of the installation pipe seat 402 close to the ventilation pipe 307 can block the holes 405 to prevent the gas inside the voltage stabilizing box 401 from being discharged from the inside of the voltage stabilizing box 401. When the air pressure inside the voltage stabilizing box 401 is relatively high, if the sealing performance of the floating oil seal 7 is not good during the dynamic simulation of the floating oil seal 7, the gas inside the voltage stabilizing box 401 will leak through the friction sleeve 208. At this time, the pressure gauge 6 will change. If the sealing performance of the floating oil seal 7 is good, the value of the pressure gauge 6 will not change. During the static test, after the floating oil seal 7 moves into the friction sleeve 208, when the voltage stabilizing box 401 is filled with gas, if the sealing performance of the floating oil seal 7 is good, the value of the pressure gauge 6 will not change. When the sealing performance of the floating oil seal 7 is poor, the gas inside the voltage stabilizing box 401 will leak through the friction sleeve 208, resulting in a change in the value of the pressure gauge 6.

[0034] The environmental simulation mechanism 5 includes an installation cover 501. The inner side of the installation cover 501 is slidably connected to the outside of the friction sleeve 208. A plurality of communication holes 502 are provided inside the installation cover 501. A communication groove 503 is provided on one side of the inside of the installation cover 501 away from the pressure stabilizing box 401. A storage cylinder 504 is fixedly connected to the outside of the installation cover 501. The storage cylinder 504 can facilitate the addition of sand grains and also facilitate the passage of sand grains into the inside of the communication groove 503. When the storage cylinder 504 is filled with gas, the sand grains can be blown into the inside of the friction sleeve 208 through the communication holes 502, so as to simulate a sand and dust environment. A ventilation valve 505 is fixedly connected to the top of the storage cylinder 504. A ventilation hose 506 is fixedly connected to the top of the ventilation valve 505. The ventilation hose 506 can play a role in ventilation. One end of the ventilation hose 506 away from the storage cylinder 504 is fixedly connected to an automatic valve 507. The bottom of the automatic valve 507 is fixedly connected to the top of the pressure stabilizing box 401. An electric heating wire 508 is provided inside the installation cover 501, and the electric heating wire 508 plays a role in heating. A placement groove 509 is fixedly connected to the outside of the storage cylinder 504, and the placement groove 509 facilitates the passage of sand grains into the inside of the storage cylinder 504. Two clamping ears 510 are fixedly connected to the outside of the installation cover 501. A clamping hole 511 is provided inside the clamping ear 510. An installation cover 512 is fixedly connected to the outside of the friction sleeve 208. Two clamping grooves 513 are provided inside the outer circumference of the installation cover 512. Two clamping frames 514 are fixedly connected to the outside of the installation cover 512. One clamping frame 514 is fixedly connected to a fixed cylinder 515 on the side away from the sliding seat 202. A limiting sliding disk 516 is slidably connected to the inside of the fixed cylinder 515. A plug rod 517 is fixedly connected to the middle of the limiting sliding disk 516. A return spring 518 is sleeved on the outside of the plug rod 517. One end of the return spring 518 is fixedly connected to the inside of the fixed cylinder 515, and the other end of the return spring 518 is fixedly connected to one end of the limiting sliding disk 516 away from the clamping frame 514. A pull ring 519 is fixedly connected to the end of the plug rod 517 away from the clamping frame 514. The bottom inside of the storage cylinder 504 is communicated with the inside of the communication groove 503. The outside of the clamping ear 510 is engaged with the inside of the clamping frame 514, and the plug rod 517 is engaged with the inside of the clamping hole 511. When performing high-temperature simulation, the communication holes 502 are opened. When the temperature of the communication holes 502 rises, the temperature on the friction sleeve 208 will be increased, and then the sealing condition of the floating oil seal 7 in a high-temperature environment can be simulated. When simulating a sand and dust environment, the automatic valve 507 is opened. At this time, the gas inside the pressure stabilizing box 401 will enter the inside of the ventilation hose 506 through the automatic valve 507. Then the ventilation valve 505 is opened, and the gas enters the inside of the storage cylinder 504 through the ventilation valve 505. Then the sand grains inside the storage cylinder 504 and the communication groove 503 can be blown up, and the sand grains are blown into the inside of the installation cover 501 through the communication holes 502. When the connecting rod 206 slides inside the installation cover 501,Then, sand grains will disperse between the space formed by the floating oil seal 7 and the friction sleeve 208, so as to simulate a dust environment. When the floating oil seal 7 is removed, first pull the pull ring 519 away from the clamping frame 514, which can drive the insertion rod 517 to move away from the mounting cover 512, and then the insertion rod 517 can be moved out of the internal of the clamping hole 511. At this time, rotate the mounting cover 501, and then the clamping ear 510 can be moved to the notch of the clamping groove 513, and the clamping ear 510 can be slid out from the notch of the clamping groove 513, and then the mounting cover 501 can be slid out from the outside of the friction sleeve 208. When installing the mounting cover 501, just align the clamping ear 510 with the notch of the clamping groove 513 and push it in, and then rotate the mounting cover 501 to drive the clamping ear 510 to rotate into the internal of the clamping frame 514. At this time, release the pull ring 519, and under the action of the return spring 518, the limit sliding disc 516 can be driven to reset, and then the insertion rod 517 can be driven to reset. At this time, the insertion rod 517 can be re-engaged in the internal of the clamping hole 511, thus preventing the mounting cover 501 from rotating under the movement of the connecting rod 206, and avoiding the mounting cover 501 from falling off the mounting cover 512.,

[0035] Working principle: When performing dynamic detection, first start the motor 203. After the output end of the motor 203 rotates, it can drive the external thread column 204 to rotate. After the external thread column 204 rotates, it can move towards the voltage stabilizing mechanism 4 under the cooperation of the internal thread sleeve 205. At the same time, it can also drive the connecting rod 206 to rotate. When the connecting rod 206 rotates, it can drive the mounting head 207 to rotate and drive the mounting head 207 to move towards the voltage stabilizing mechanism 4. The floating oil seal 7 is driven by the mounting head 207 to rotate and move towards the voltage stabilizing mechanism 4. If the side of the external thread column 204 close to the motor 203 moves to one side of the internal thread sleeve 205, the motor 203 can be controlled to rotate in the reverse direction, and then the external thread column 204, the connecting rod 206 and the mounting head 207 can be driven to rotate in the reverse direction. At the same time, under the cooperation of the internal thread sleeve 205, the external thread column 204, the connecting rod 206 and the mounting head 207 can be forced to move towards the sliding seat 202, and then the dynamic simulation of the rotation and sliding of the floating oil seal 7 can be realized;

[0036] When the sliding seat 202 moves back and forth, it can drive the driving rod 306 to move back and forth. Therefore, it can drive the movable inner rod 303 and the movable plug 302 to move back and forth. When the movable inner rod 303 moves towards the ventilation pipe 307, the check valve one 304 closes and the check valve two 305 opens, so that the air inside the fixed outer cylinder 301 can be squeezed into the inside of the ventilation pipe 307. When the movable inner rod 303 moves away from the ventilation pipe 307, the check valve two 305 closes and the check valve one 304 opens. At this time, when the movable inner rod 303 and the movable plug 302 move away from the ventilation pipe 307, the outside air can be inhaled into the inside of the fixed outer cylinder 301 through the check valve one 304. When the air pressure inside the voltage stabilizing mechanism 4 is too high and no more gas can be filled into the voltage stabilizing mechanism 4, the gas will push the movable plug 309 to move away from the ventilation pipe 307 and stretch the tension spring 315. When the movable plug 309 completely moves out of the exhaust pipe 308, the gas will be discharged through the exhaust pipe 308. When the air in the ventilation pipe 307 stops discharging from the exhaust pipe 308, under the action of the tension spring 315, it can pull the mounting circular plate 313 to move towards the ventilation pipe 307 and move the movable plug 309 back into the exhaust pipe 308, so as to prevent the gas from discharging from the inside of the exhaust pipe 308;

[0037] When the gas in the ventilation pipe 307 enters the inside of the voltage stabilizing box 401, the gas will push the sliding plate 404 to move towards the voltage stabilizing box 401. When there is no blockage of the pipe seat 402 in the hole 405 on the sliding plate 404, the gas will enter the inside of the pipe seat 402 through the hole 405 and enter the inside of the voltage stabilizing box 401 through the pipe seat 402. When there is no gas entering the inside of the voltage stabilizing box 401 from the inside of the ventilation pipe 307, under the action of the pressure spring 407, it can drive the sliding plate 404 to move towards the ventilation pipe 307, so as to block the hole 405 by using the inner wall of the pipe seat 402 close to the ventilation pipe 307 and prevent the gas inside the voltage stabilizing box 401 from discharging from the inside of the voltage stabilizing box 401. When the air pressure inside the voltage stabilizing box 401 is relatively high, if the sealing performance of the floating oil seal 7 is not good during the dynamic simulation of the floating oil seal 7, the gas inside the voltage stabilizing box 401 will leak through the friction sleeve 208. At this time, the pressure gauge 6 will change. If the sealing performance of the floating oil seal 7 is good, the value of the pressure gauge 6 will not change. During the static test, after moving the floating oil seal 7 into the inside of the friction sleeve 208, when the voltage stabilizing box 401 is filled with gas, if the sealing performance of the floating oil seal 7 is good, the value of the pressure gauge 6 will not change. When the sealing performance of the floating oil seal 7 is poor, the gas inside the voltage stabilizing box 401 will leak through the friction sleeve 208, resulting in a change in the value of the pressure gauge 6;

[0038] When performing high-temperature simulation, the communication hole 502 is opened. When the temperature of the communication hole 502 rises, the temperature on the friction sleeve 208 will increase, and then the sealing condition of the floating oil seal 7 in a high-temperature environment can be simulated. When simulating a sand-dust environment, the automatic valve 507 is opened. At this time, the gas inside the pressure stabilizing box 401 will enter the inside of the ventilation hose 506 through the automatic valve 507. Then, when the ventilation valve 505 is opened, the gas enters the inside of the accommodating cylinder 504 through the ventilation valve 505, and then the sand grains inside the accommodating cylinder 504 and the communication groove 503 can be blown up. Then, the sand grains are blown into the inside of the mounting cover 501 through the communication hole 502. When the connecting rod 206 slides inside the mounting cover 501, the sand grains will disperse between the spaces formed by the floating oil seal 7 and the friction sleeve 208, so that a sand-dust environment can be simulated. If the floating oil seal 7 is removed, first pull the pull ring 519 in the direction away from the card frame 514, which can drive the plug rod 517 to move in the direction away from the mounting cover 512, and then the plug rod 517 can be moved out of the inside of the card hole 511. At this time, rotate the mounting cover 501, and then the lug 510 can be moved to the notch of the card slot 513, and the lug 510 can be slid out from the notch of the card slot 513, and then the mounting cover 501 can be slid out from the outside of the friction sleeve 208. When installing the mounting cover 501, just align the lug 510 with the notch of the card slot 513 and push it in, and then rotate the mounting cover 501 to drive the lug 510 to rotate into the inside of the card frame 514. At this time, release the pull ring 519, and under the action of the return spring 518, the limit sliding disk 516 can be driven to reset, and then the plug rod 517 can be driven to reset. At this time, the plug rod 517 can be re-engaged inside the card hole 511, thus preventing the mounting cover 501 from rotating under the movement of the connecting rod 206, and thus preventing the mounting cover 501 from falling off the mounting cover 512.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating oil seal sealing performance detection device, comprising a detection table (1), characterized in that, A motion simulation mechanism (2) is provided on the top of the test bench (1). The motion simulation mechanism (2) is used to simulate a dynamic environment. A pressurizing mechanism (3) is provided outside the test bench (1). The pressurizing mechanism (3) is used to provide air pressure. A pressure stabilizing mechanism (4) is provided on the top of the test bench (1). The pressure stabilizing mechanism (4) is used to stabilize the air pressure. An environment simulation mechanism (5) is provided outside the motion simulation mechanism (2). The environment simulation mechanism (5) is used to simulate a natural environment. The motion simulation mechanism (2) includes a sliding groove (201). The sliding groove (201) is opened inside the top end of the test bench (1). A sliding seat (202) is slidably connected inside the sliding groove (201). A motor (203) is fixedly connected to the top of the sliding seat (202). An external threaded column (204) is fixedly connected to the output end of the motor (203). An internal threaded sleeve (205) is fixedly connected to the top of the test bench (1). The external threaded column (204) is threadedly connected inside the internal threaded sleeve (205). A connecting rod (206) is fixedly connected to the side of the external threaded column (204) away from the motor (203). An installation head (207) is fixedly connected to the side of the connecting rod (206) away from the external threaded column (204). A friction sleeve (208) is provided outside the installation head (207). A floating oil seal (7) is fixedly connected to the end of the installation head (207) away from the external threaded column (204). The pressurizing mechanism (3) includes a fixed outer cylinder (301). The outside of the fixed outer cylinder (301) is fixedly connected to the outside of the test bench (1). A movable plug (302) is slidably connected inside the fixed outer cylinder (301). A movable inner rod (303) is fixedly connected to the side of the movable plug (302) close to the sliding seat (202). A one-way valve one (304) is fixedly connected to the end of the movable inner rod (303) away from the movable plug (302). A one-way valve two (305) is fixedly connected to the end of the fixed outer cylinder (301) away from the one-way valve one (304). A driving rod (306) is fixedly connected to the outside of the movable inner rod (303). The top of the driving rod (306) is fixedly connected to the outside of the sliding seat (202). A ventilation pipe (307) is fixedly connected to the end of the one-way valve two (305) away from the fixed outer cylinder (301). An exhaust pipe (308) is fixedly connected to the outside of the ventilation pipe (307). A movable plug (309) is slidably connected inside the exhaust pipe (308). A connecting column (310) is fixedly connected to the side of the movable plug (309) close to the ventilation pipe (307). A limiting disc (311) is fixedly connected to the side of the connecting column (310) close to the ventilation pipe (307). A plurality of ventilation holes (312) are opened inside the limiting disc (311). An installation round plate (313) is fixedly connected to the side of the movable plug (309) away from the ventilation holes (312).A fixing ring (314) is fixedly connected to the outside of the exhaust pipe (308). A tension spring (315) is fixedly connected between the mounting circular plate (313) and the fixing ring (314). The tension spring (315) is sleeved on the outside of the exhaust pipe (308). The limiting disc (311) is slidably connected to the inside of the exhaust pipe (308). The environment simulation mechanism (5) includes a mounting cover (501). The inner side of the mounting cover (501) is slidably connected to the outside of the friction sleeve (208). A plurality of communication holes (502) are formed inside the mounting cover (501). A communication groove (503) is formed on one side of the inside of the mounting cover (501) away from the pressure stabilizing tank (401). A storage cylinder (504) is fixedly connected to the outside of the mounting cover (501). An air vent valve (505) is fixedly connected to the top of the storage cylinder (504). An air vent hose (506) is fixedly connected to the top of the air vent valve (505). One end of the air vent hose (506) away from the storage cylinder (504) is fixedly connected to an automatic valve (507). The bottom of the automatic valve (507) is fixedly connected to the top of the pressure stabilizing tank (401). A heating wire (508) is arranged inside the mounting cover (501). A placing groove (509) is fixedly connected to the outside of the storage cylinder (504). Two clamping ears (510) are fixedly connected to the outside of the mounting cover (501). A clamping hole (511) is formed inside the clamping ear (510). A mounting cover (512) is fixedly connected to the outside of the friction sleeve (208). Two clamping grooves (513) are formed inside the outer circumference of the mounting cover (512). Two clamping frames (514) are fixedly connected to the outside of the mounting cover (512). One of the clamping frames (514) is fixedly connected to a fixing cylinder (515) on the side away from the sliding seat (202). A limiting sliding disc (516) is slidably connected to the inside of the fixing cylinder (515). A plug rod (517) is fixedly connected to the middle of the limiting sliding disc (516). A return spring (518) is sleeved on the outside of the plug rod (517).

2. The floating oil seal sealing performance detection device according to claim 1, wherein, The voltage stabilizing mechanism (4) includes a voltage stabilizing box (401), the bottom of the voltage stabilizing box (401) is fixedly connected to the top of the detection table (1), an installation pipe seat (402) is fixedly connected to the outside of the voltage stabilizing box (401), a plurality of limiting sliding grooves (403) are formed in the inner wall of the installation pipe seat (402), a sliding plate (404) is slidably connected to the inside of the installation pipe seat (402), a plurality of holes (405) are formed in the outer edge interior of the sliding plate (404), a plurality of limiting sliding blocks (406) are fixedly connected to the outside of the sliding plate (404), the limiting sliding blocks (406) are slidably connected to the inside of the limiting sliding grooves (403), a pressure spring (407) is arranged inside the installation pipe seat (402), and a pressure gauge (6) is fixedly connected to the top of the voltage stabilizing box (401).

3. The floating oil seal sealing performance detection device according to claim 2, characterized in that, One side of the voltage stabilizing box (401) close to the sliding seat (202) is fixedly connected to one side of the friction sleeve (208) away from the sliding seat (202), and one side of the installation pipe seat (402) away from the voltage stabilizing box (401) is fixedly connected to one side of the ventilation pipe (307) away from the check valve II (305).

4. A floating oil seal sealing performance detection device according to claim 2, characterized in that One end of the pressure spring (407) is fixedly connected to the inside of the limiting sliding groove (403), and the other end of the pressure spring (407) is fixedly connected to one side of the sliding plate (404) close to the voltage stabilizing box (401).

5. The floating oil seal sealing performance detection device according to claim 1, characterized in that, One end of the return spring (518) is fixedly connected to the inside of the fixed cylinder (515), and the other end of the return spring (518) is fixedly connected to one end of the limiting sliding disc (516) away from the clamping frame (514).

6. The floating oil seal sealing performance detection device according to claim 1, wherein A pull ring (519) is fixedly connected to one end of the insertion rod (517) away from the clamping frame (514), and the bottom interior of the storage cylinder (504) is communicated with the inside of the communication groove (503).

7. The floating oil seal sealing performance detection device according to claim 1, characterized in that The outside of the clamping ear (510) is engaged with the inside of the clamping frame (514), and the insertion rod (517) is engaged with the inside of the clamping hole (511).

Images