Quality detection device for bearing sleeve

Abstract

The invention relates to the technical field of bearing sleeve detection, in particular to a bearing sleeve quality detection device which comprises an operation table, a detection seat is rotationally arranged at the upper end of the operation table, fixing frames are connected to the two sides of the operation table, outer covers are arranged in the fixing frames, multiple sets of empty grooves are formed in the outer sides of the outer covers, and rotating shafts are rotationally arranged in the outer covers. The lower end of the detection seat is connected with a gear A, the two sides of the gear A are in meshed connection with gears B, and one end of the gear B is provided with a guide pipe. According to the invention, the pressure is gradually increased along with the change of the rotating speed, after the rotating speed is increased to a certain speed, the pressure on the bearing sleeve is continuously increased, and the temperature of the bearing sleeve is gradually increased at a high rotating speed; and different pressures borne by the bearing sleeve at different rotating speeds are detected, so that the borne pressures and generated temperature changes in various working scenes are simulated, and the performance and quality of the bearing sleeve in actual use are evaluated more comprehensively and truly.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing sleeve detection, and in particular to a quality detection device for a bearing sleeve. Background Art

[0002] In the modern industrial field, bearing sleeves, as indispensable core components of mechanical equipment, are widely used in many industries such as automobile manufacturing, aerospace, precision instruments, heavy machinery, etc. Their quality is directly related to the operating stability, reliability and service life of mechanical equipment. As industrial production develops towards high precision, high efficiency and high reliability, higher requirements are placed on the accuracy and comprehensiveness of bearing sleeve quality inspection.

[0003] When using traditional detection devices, workers need to switch different equipment to perform various tests. It is also difficult to perform different tests under different working conditions of the bearing sleeve at different speeds and temperatures, which makes it easy to miss test results and make it impossible to accurately judge the quality of the bearing sleeve. Summary of the Invention

[0004] In the present invention, the pressure will gradually increase with the change of the rotational speed. After the rotational speed reaches a certain speed, the pressure on the bearing sleeve will continue to increase. At high rotational speed, the temperature of the bearing sleeve will gradually rise, and then the different pressures borne by the bearing sleeve at different rotational speeds will be detected, thereby simulating the pressure and temperature changes borne in various working scenarios, so as to more comprehensively and realistically evaluate its performance and quality in actual use.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a quality inspection device for a bearing sleeve, comprising an operating table, a detection seat being rotatably mounted on the upper end of the operating table, fixed frames being connected to both sides of the operating table, an outer cover being disposed within the fixed frame, and a plurality of empty slots being formed on the outer side of the outer cover; A rotating shaft rotates inside the outer cover, a gear A is connected to the lower end of the detection seat, gears B are meshed on both sides of the gear A, a guide tube is provided at one end of the gear B, a reciprocating screw rotates inside the guide tube, a separation tube is connected at one end, an air pressure tube A and an air pressure tube B are connected to the outside of the separation tube, an extrusion plate is fixedly connected to one end of the air pressure tube A and the air pressure tube B, a storage box is connected to the lower end of the separation tube, and a nozzle is connected to one side of the storage box; A feed pipe is provided at the upper end of the outer cover, one end of the feed pipe is connected to a gear C, one side of the gear C is connected to a rack, a storage pipe is installed on the inner wall of the outer cover, one end of the storage pipe is connected to the rack; An air intake pipe is installed on the inner wall of the fixing frame. The outer side of the air intake pipe is connected with a delivery pipe. An air bag is arranged inside the delivery pipe.

[0006] Preferably, an electric push rod is installed at the center of the upper end of the fixing frame, and the electric push rod passes through the fixing frame and extends to the lower end where it is connected to a motor.

[0007] Preferably, the output end of the motor is rotatably connected to a rotating shaft, the end of the rotating shaft away from the motor is connected to a protrusion, and the upper end of the detection seat is provided with a groove matching the protrusion, and the groove and the protrusion are located in the same vertical plane.

[0008] Preferably, a connecting rod is fixedly connected to the lower end of the detection seat, and the connecting rod extends through the operating table to the lower end and is connected to gear A. Two groups of gears B are connected to the outside of gear A, and one end of the two groups of gears B is fixedly connected to a reciprocating screw. A piston is provided inside the guide tube, and the piston is connected to the reciprocating screw ball nut pair. One end of the guide tube is connected to the connecting tube A, and the other end of the connecting tube A is connected to the separation tube.

[0009] Preferably, branch pipe A and branch pipe B are connected to the outside of the separation pipe, branch pipe A is connected to air pressure pipe A, and branch pipe B is connected to air pressure pipe B. A pressure valve is provided at the connection between the separation pipe and branch pipe B, and the lower end of the separation pipe is fixedly connected to a connecting pipe B, and one end of the connecting pipe B is connected to the storage box.

[0010] Preferably, the air pressure tube A and the air pressure tube B are both movably connected with a push rod, and one end of the push rod located inside the air pressure tube A and the air pressure tube B is fixedly connected to a spring, and the spring is connected to the inner wall of the air pressure tube A and the air pressure tube B. One end of the push rod is fixedly connected to an extrusion plate, and the side of the extrusion plate away from the push rod is connected to multiple sets of movable shafts.

[0011] Preferably, a limit plate is movably connected to the outer side of the rotating shaft, a limit ring is provided at the lower end of the limit plate, the limit ring is connected to the rotating shaft, and the limit ring is located inside the outer cover.

[0012] Preferably, two groups of storage tubes are installed inside the outer cover, and a push rod is movably connected inside the storage tube. One end of the push rod is connected to the rack, and one end of the gear C is connected to an auger piece. The auger piece is located inside the feed pipe, and one end of the feed pipe is connected to the sand and gravel tank.

[0013] Preferably, two groups of delivery pipes are connected to the outside of the storage box, one end of the two groups of delivery pipes is connected to the nozzle, the nozzle is embedded in the fixed frame, and two groups of air intake pipes are provided, both groups of air intake pipes are movably connected to the inside of the piston rod, the piston rod and the limit plate are located in the same vertical plane, the outside of the piston rod is connected to the connecting pipe C, one end of the connecting pipe C passes through the delivery pipe and extends to the inside to be connected to the airbag.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the pressure will gradually increase with the change of the rotational speed. After the rotational speed reaches a certain speed, the two sets of air pressure tubes B will push the push rods out again, so that the pressure on the bearing sleeve will continue to increase. At high rotational speed, the temperature of the bearing sleeve will gradually rise, and then the bearing sleeve will be tested to withstand different pressures at different rotational speeds, thereby simulating the pressure and temperature changes in various working scenarios, so as to more comprehensively and realistically evaluate its performance and quality in actual use. At the same time, the increase in rotational speed causes the bearing sleeve temperature to rise and withstand different pressures, which can test the mechanical properties, thermal stability and wear resistance of the bearing sleeve material under complex conditions such as high temperature and high pressure.

[0015] When the bearing sleeve is heated up at a high speed, the present invention adds a certain amount of sand and gravel to the inside of the outer cover. The sand and gravel that enter the inner part of the outer cover will fall on the outer wall of the bearing sleeve, and then detect whether the bearing sleeve will cause the gap in the seal to increase after it is heated and expanded, thereby simulating the complex working conditions of the bearing at high temperature and with the presence of impurities, which is closer to the actual usage scenario and can effectively detect the sealing performance of the bearing sleeve under such conditions. At the same time, if the gap increases significantly after the bearing sleeve is heated and expanded, it means that the thermal deformation of the bearing sleeve is large, which may affect the matching accuracy with other components, and thus affect the performance of the entire equipment. The staff can screen out bearing sleeves with good thermal stability based on the size of the bearing sleeve expansion, thereby improving the working reliability of the equipment in a high temperature environment.

[0016] After the detection is completed, the present invention will transport the chemical agent through the delivery pipe and then spray it on the outer wall of the bearing seat through the nozzle. Because high temperature will cause the material to expand, the cracks and pores will open slightly, so the high temperature will help the penetrant to better penetrate into the tiny cracks and pores on the surface of the bearing sleeve. At the same time, the viscosity of the penetrant will also decrease and the fluidity will be enhanced, making it easier to penetrate into the defects, thereby improving the sensitivity and accuracy of the detection. At the same time, the bearing sleeve is quickly cooled, and it is also tested whether the bearing sleeve will cause deformation or breakage under rapid temperature changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the second schematic diagram of the overall structure of the present invention; Figure 3 This is one of the partial structural cross-sectional views of the present invention; Figure 4 This is the second partial structural cross-sectional view of the present invention; Figure 5 It is a cross-sectional view of the overall structure of the present invention; Figure 6 This is one of the partial cross-sectional views of the present invention; Figure 7 This is the second partial cross-sectional view of the present invention; Figure 8 is a cross-sectional view of an extruded plate of the present invention; Figure 9 For the present invention Figure 3 A magnified view of the structure at point A; Figure 10 For the present invention Figure 4 A magnified view of the structure at point B; Figure 11 For the present invention Figure 7 Enlarged view of the structure at point C.

[0018] Figure: 1. Operating table; 2. Detection base; 3. Fixing frame; 4. Electric push rod; 5. Motor; 6. Rotating shaft; 7. Limit plate; 8. Limit ring; 9. Cover; 10. Empty slot; 11. Connecting rod; 12. Gear A; 13. Gear B; 14. Reciprocating screw; 15. Guide tube; 16. Piston; 17. Connecting tube A; 18. Separating tube; 19. Branch tube A; 20. Air pressure tube A; 21 , push rod; 22. Spring; 23. Extrusion plate; 24. Movable shaft; 25. Branch pipe B; 26. Air pressure pipe B; 27. Connecting pipe B; 28. Storage box; 29. ​​Delivery pipe; 30. Nozzle; 31. Inlet pipe; 32. Piston rod; 33. Connecting pipe C; 34. Air bag; 35. Storage pipe; 36. Push rod; 37. Rack; 38. Gear C; 39. Auger piece; 40. Feed pipe. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The present invention provides a quality inspection device for a bearing sleeve, comprising an operating table 1, a detection seat 2 being rotatably mounted on the upper end of the operating table 1, fixed frames 3 being connected to both sides of the operating table 1, an outer cover 9 being disposed inside the fixed frame 3, and multiple groups of empty slots 10 being disposed on the outer side of the outer cover 9; A rotating shaft 6 rotates inside the outer cover 9, and a gear A12 is connected to the lower end of the detection base 2. Gears B13 are meshed and connected on both sides of the gear A12. A guide tube 15 is provided at one end of the gear B13. A reciprocating screw 14 rotates inside the guide tube 15. One end of the guide tube 15 is connected to a separation tube 18. The outside of the separation tube 18 is connected to an air pressure tube A20 and an air pressure tube B26. One end of the air pressure tube A20 and the air pressure tube B26 are fixedly connected to an extrusion plate 23. The lower end of the separation tube 18 is connected to a storage box 28, and one side of the storage box 28 is connected to a nozzle 30; A feed pipe 40 is provided at the upper end of the outer cover 9, one end of the feed pipe 40 is connected to a gear C38, one side of the gear C38 is connected to a rack 37, and a storage pipe 35 is installed on the inner wall of the outer cover 9, one end of the storage pipe 35 is connected to the rack 37; An air intake pipe 31 is installed on the inner wall of the fixing frame 3 . The outer side of the air intake pipe 31 is connected to the delivery pipe 29 . An air bag 34 is provided inside the delivery pipe 29 .

[0021] In an optional embodiment, an electric push rod 4 is installed at the center of the upper end of the fixed frame 3. The electric push rod 4 passes through the fixed frame 3 and extends to the lower end and is connected to the motor 5. When in use, the staff places the bearing sleeve to be tested on the upper end of the test seat 2 and pushes the motor 5 downward through the electric push rod 4.

[0022] In an optional embodiment, the output end of the motor 5 is rotatably connected to a rotating shaft 6, and a protrusion is connected to the end of the rotating shaft 6 away from the motor 5. A groove matching the protrusion is provided at the upper end of the detection seat 2, and the groove and the protrusion are located in the same vertical plane. When the motor 5 moves downward, the protrusion will contact the groove, so that when the motor 5 drives the rotating shaft 6 to rotate, the detection seat 2 will be driven to rotate synchronously, and the speed at which the motor 5 drives the rotating shaft 6 to rotate changes from slow to fast.

[0023] In an optional embodiment, the lower end of the detection seat 2 is fixedly connected to a connecting rod 11, which extends through the operating table 1 to the lower end and is connected to the gear A12. Two sets of gears B13 are connected to the outside of the gear A12. One end of the two sets of gears B13 is fixedly connected to a reciprocating screw 14. A piston 16 is provided inside the guide tube 15. The piston 16 is connected to the ball nut pair of the reciprocating screw 14. One end of the guide tube 15 is connected to a connecting tube A17, and the other end of the connecting tube A17 is connected to the separation tube 18. When the detection seat 2 rotates, it will rotate together with the detection seat 2. The connecting rod 11 is driven to rotate step by step. When the connecting rod 11 rotates, the gear A12 is driven to rotate synchronously. When the gear A12 rotates, the two sets of gears B13 are driven to rotate. When the gear B13 rotates, the reciprocating screw 14 is driven to rotate. When the reciprocating screw 14 rotates, the piston 16 is driven to reciprocate inside the guide tube 15. When the piston 16 reciprocates, the air pressure is continuously transported to the inside of the connecting tube A17. After the air pressure enters the connecting tube A17, the connecting tube A17 transports the air pressure to the inside of the separation tube 18.

[0024] In an optional embodiment, the outer side of the separation tube 18 is connected to a branch pipe A19 and a branch pipe B25, the branch pipe A19 is connected to the air pressure pipe A20, and its branch pipe B25 is connected to the air pressure pipe B26. A pressure valve is provided at the connection between the separation tube 18 and the branch pipe B25. The lower end of the separation tube 18 is fixedly connected to a connecting pipe B27, and one end of the connecting pipe B27 is connected to the storage box 28. After the air pressure enters the interior of the separation tube 18, the amount of air pressure entering is large, and then when the air pressure enters the interior of the separation tube 18, the amount of air delivered by the connecting pipe B27 is small, and the air pressure is discharged from the separation tube 18. Instead, part of the air pressure will enter the branch pipe A19, and the branch pipe A19 will transport the air pressure to the inside of the air pressure pipe A20. As mentioned above, the rotation speed of the motor 5 changes from slow to fast. When the rotation becomes faster, the intake volume will increase synchronously. When the intake volume increases, the connecting pipe B27 cannot transport the air pressure to the inside of the storage box 28 in time, which will cause the air pressure inside the separation pipe 18 to increase. When the air pressure inside the separation pipe 18 increases to a certain amount, the air pressure valve at the connection with the branch pipe B25 will be opened, allowing the air pressure to enter the inside of the air pressure pipe B26.

[0025] In an optional embodiment, the air pressure tube A20 and the air pressure tube B26 are both movably connected with a push rod 21, and one end of the push rod 21 located inside the air pressure tube A20 and the air pressure tube B26 is fixedly connected to a spring 22, and the spring 22 is connected to the inner wall of the air pressure tube A20 and the air pressure tube B26. One end of the push rod 21 is fixedly connected to an extrusion plate 23, and the side of the extrusion plate 23 away from the push rod 21 is connected with multiple sets of movable shafts 24. As described above, after the air pressure enters the air pressure tube A20, the two sets of air pressure tubes A20 will push the push rod 21 outward, so that the push rod 21 will push the extrusion plate 23 to move. When the extrusion plate 23 moves, it will enter the interior of the outer cover 9 through the empty groove 10 on the outside of the outer cover 9 and contact the bearing sleeve, thereby applying a certain pressure on the bearing sleeve. When the extrusion plate 23 contacts the bearing sleeve, the movable shaft 24 will automatically shrink toward the inside of the extrusion plate 23 according to the outer diameter of the bearing sleeve, and then use the extrusion plate 23 to better fit the outer diameter of the bearing sleeve. The applied force is made more uniform, and the pressure will gradually increase with the change of the rotational speed. After the rotational speed reaches a certain speed, as the air pressure enters the inside of the air pressure tube B26, the two sets of air pressure tubes B26 will push the push rod 21 out again, so that the pressure on the bearing sleeve continues to increase, and at high speed, the temperature of the bearing sleeve will gradually rise, and then the bearing sleeve is tested to withstand different pressures at different rotational speeds, thereby simulating the pressure and temperature changes in various working scenarios, so as to more comprehensively and realistically evaluate its performance and quality in actual use. At the same time, the increase in speed causes the bearing sleeve temperature to rise and withstand different pressures, which can test the mechanical properties, thermal stability and wear resistance of the bearing sleeve material under complex conditions such as high temperature and high pressure. After the test is completed, as the rotating shaft 6 stops rotating, the air supply to the inside of the air pressure tube A20 and the air pressure tube B26 will stop, so that as the air pressure is released, the push rod 21 will gradually reset through the force of the spring 22.

[0026] In an optional embodiment, a limit plate 7 is movably connected to the outer side of the rotating shaft 6, and a limit ring 8 is provided at the lower end of the limit plate 7. The limit ring 8 is connected to the rotating shaft 6. The limit ring 8 is located inside the outer cover 9. When the rotating shaft 6 rotates, the limit plate 7 and the outer cover 9 will not be driven to rotate, and the outer cover 9 can only move within the same range due to the limitation of the limit plate 7 and the limit ring 8. At the same time, when the rotating shaft 6 rotates, the position of the outer cover 9 will not change, and the size of the empty groove 10 opened on the outside of the outer cover 9 is slightly larger than the extrusion plate 23, thereby ensuring that the extrusion plate 23 accurately contacts the bearing sleeve during detection.

[0027] In an optional embodiment, two groups of storage tubes 35 are installed inside the outer cover 9, and a push rod 36 is movably connected inside the storage tube 35. One end of the push rod 36 is connected to the rack 37, and one end of the gear C38 is connected to the auger piece 39. The auger piece 39 is located inside the feed pipe 40, and one end of the feed pipe 40 is connected to the sand and gravel tank. Mercury is stored inside its branch pipe B25. When the bearing sleeve heats up at a high speed, the mercury inside the storage tube 35 will expand, thereby squeezing the push rod 36 to rise. When the push rod 36 rises, it will push the rack 37 to rise synchronously, and then the rack 37 will drive the gear C38 to rotate. When the gear C38 rotates, it will drive the auger piece 39 to rotate synchronously, thereby A certain amount of sand and gravel is added to the inside of the outer cover 9. The sand and gravel that enter the inner part of the outer cover 9 will fall on the outer wall of the bearing sleeve, and then it is detected whether the gap in the seal will increase after the bearing sleeve is heated and expanded, thereby simulating the complex working conditions of the bearing at high temperature and with the presence of impurities, which is closer to the actual use scenario and can effectively detect the sealing performance of the bearing sleeve under such conditions. At the same time, if the gap increases significantly after the bearing sleeve is heated and expanded, it means that the thermal deformation of the bearing sleeve is large, which may affect the matching accuracy with other components, and thus affect the performance of the entire equipment. The staff can screen out bearing sleeves with good thermal stability according to the size of the bearing sleeve expansion, and improve the working reliability of the equipment in high temperature environment.

[0028] In an optional embodiment, two groups of delivery pipes 29 are connected to the outside of the storage box 28, one end of the two groups of delivery pipes 29 is connected to the nozzle 30, the nozzle 30 is embedded in the inside of the fixing frame 3, and two groups of air intake pipes 31 are provided. The inside of the two groups of air intake pipes 31 is movably connected to the piston rod 32. The piston rod 32 and the limit plate 7 are located in the same vertical plane. The outside of the piston rod 32 is connected to the connecting pipe C33. One end of the connecting pipe C33 passes through the delivery pipe 29 and extends to the inside to be connected to the air bag 34. The storage box 28 stores air inside. There is a chemical fluorescent penetrant, and one end of the piston rod 32 has an adsorption force with the limit plate 7. As mentioned above, when the motor 5 descends, the limit plate 7 will contact the piston rod 32, so that the limit plate 7 will squeeze the piston rod 32 into the inside of the intake pipe 31. After the piston rod 32 enters the inside of the intake pipe 31, it will squeeze the air pressure through the connecting pipe C33 to the inside of the air bag 34, so that the air bag 34 expands and blocks the inside of the delivery pipe 29. When the guide pipe 15 takes in air, part of the air pressure will be delivered to the storage box 2 8, and then the air pressure inside the storage box 28 is increased. When the air pressure inside the storage box 28 increases, the chemical agent inside the storage box 28 will be squeezed into the inside of the delivery pipe 29. At this time, the inside of the delivery pipe 29 is blocked, so that the chemical agent will not be sprayed out through the nozzle 30. After the detection is completed, as the limit plate 7 rises, the limit plate 7 will pull the piston rod 32 up through the adsorption force, thereby withdrawing the air pressure inside the airbag 34, so that the inside of the delivery pipe 29 is unblocked. After the inside of the delivery pipe 29 is unblocked, the chemical agent will be transported through the delivery pipe 29 and then sprayed on the outer wall of the bearing seat through the nozzle 30. Because high temperature will cause the material to expand, the cracks and pores will open slightly, so that the high temperature will help the penetrant to better penetrate into the tiny cracks and pores on the surface of the bearing sleeve. At the same time, the viscosity of the penetrant will also decrease, and the fluidity will be enhanced, so that it is easier to penetrate into the defect, thereby improving the sensitivity and accuracy of the detection. At the same time, the bearing sleeve is quickly cooled, and it is also tested whether the bearing sleeve will cause deformation or breakage under the rapid change of temperature.

[0029] Working principle: When in use, the staff places the bearing sleeve to be tested on the upper end of the test seat 2, and pushes the motor 5 downward through the electric push rod 4. When the motor 5 moves downward, the protrusion contacts the groove, so that when the motor 5 drives the rotating shaft 6 to rotate, the test seat 2 is synchronously driven to rotate, and the speed of the motor 5 driving the rotating shaft 6 to rotate changes from slow to fast; When the detection seat 2 rotates, it will synchronously drive the connecting rod 11 to rotate. When the connecting rod 11 rotates, it will synchronously drive the gear A12 to rotate. When the gear A12 rotates, it will drive the two sets of gears B13 to rotate. When the gear B13 rotates, it will drive the reciprocating screw 14 to rotate. When the reciprocating screw 14 rotates, it will drive the piston 16 to move back and forth inside the guide tube 15. When the piston 16 moves back and forth, it will continuously deliver air pressure to the inside of the connecting tube A17. After the air pressure enters the inside of the connecting tube A17, the connecting tube A17 will deliver the air pressure to the inside of the separation tube 18. After the air pressure enters the inside of the separation tube 18, the air pressure entering is relatively large. More, and then when the air pressure enters the separation tube 18, due to the small delivery volume of the connecting pipe B27, part of the air pressure will enter the branch pipe A19, so that the branch pipe A19 will deliver the air pressure to the inside of the air pressure pipe A20. As mentioned above, the rotation speed of the motor 5 changes from slow to fast. When the rotation speed increases, the intake volume will increase synchronously. When the intake volume increases, the connecting pipe B27 cannot deliver the air pressure to the storage box 28 in time, which will cause the air pressure inside the separation tube 18 to increase. When the air pressure inside the separation tube 18 increases to a certain amount, the air pressure valve at the connection with the branch pipe B25 will be opened, so that the air pressure enters the inside of the air pressure pipe B26. After the air pressure enters the inside of the air pressure tube A20, the two groups of air pressure tubes A20 will push the push rod 21 outward, so that the push rod 21 will push the extrusion plate 23 to move. When the extrusion plate 23 moves, it will enter the inside of the outer cover 9 through the empty groove 10 on the outside of the outer cover 9 and contact the bearing sleeve, thereby applying a certain pressure to the bearing sleeve. When the extrusion plate 23 contacts the bearing sleeve, the movable shaft 24 will automatically shrink toward the inside of the extrusion plate 23 according to the outer diameter of the bearing sleeve, and then use the extrusion plate 23 to fit the outer diameter of the bearing sleeve more evenly, so that the applied force is more uniform, and the pressure will gradually increase with the change of the speed. After the speed is increased to a certain speed, as the air pressure enters the inside of the air pressure tube B26, the two groups of air pressure tubes B26 will push the push rod 21 out again, so that the pressure on the bearing sleeve continues to increase; When the bearing sleeve heats up at high speed, the mercury inside the storage tube 35 expands, thereby squeezing the push rod 36 upward. When the push rod 36 rises, it pushes the rack 37 to rise synchronously, and then the rack 37 drives the gear C38 to rotate. When the gear C38 rotates, it drives the auger piece 39 to rotate synchronously, thereby adding a certain amount of sand and gravel to the interior of the outer cover 9. The sand and gravel that enter the outer cover 9 will fall on the outer wall of the bearing sleeve; When the motor 5 descends, the limit plate 7 contacts the piston rod 32, so that the limit plate 7 squeezes the piston rod 32 into the air inlet pipe 31. After the piston rod 32 enters the air inlet pipe 31, it squeezes the air pressure and transmits it to the air bag 34 through the connecting pipe C33, so that the air bag 34 expands and blocks the inside of the delivery pipe 29. When the guide pipe 15 takes in air, part of the air pressure is transmitted to the inside of the storage box 28, thereby increasing the air pressure inside the storage box 28. During the overtime, the chemical agent inside the storage box 28 will be squeezed into the delivery pipe 29. At this time, the delivery pipe 29 is blocked, so the chemical agent cannot be sprayed out through the nozzle 30. After the test is completed, as the limit plate 7 rises, the limit plate 7 will pull the piston rod 32 upward through the adsorption force, thereby withdrawing the air pressure inside the airbag 34, so that the inside of the delivery pipe 29 is unblocked. After the inside of the delivery pipe 29 is unblocked, the chemical agent will be transported through the delivery pipe 29 and then sprayed onto the outer wall of the bearing seat through the nozzle 30; After the detection is completed, as the rotating shaft 6 stops rotating, the air supply to the air pressure tube A20 and the air pressure tube B26 will stop, so that as the air pressure is released, the push rod 21 will gradually return to its original position due to the force of the spring 22.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A quality inspection device for a bearing sleeve, comprising an operating table (1), characterized in that: A detection seat (2) is rotatably provided at the upper end of the operating table (1), and fixed frames (3) are connected to both sides of the operating table (1). An outer cover (9) is provided inside the fixed frame (3), and a plurality of empty slots (10) are provided on the outer side of the outer cover (9); A rotating shaft (6) rotates inside the outer cover (9), a gear A (12) is connected to the lower end of the detection seat (2), and gears B (13) are meshed and connected on both sides of the gear A (12), and a guide tube (15) is provided at one end of the gear B (13), and a reciprocating screw (14) rotates inside the guide tube (15), and one end of the guide tube (15) is connected to a separation tube (18), and the outside of the separation tube (18) is connected to an air pressure tube A (20) and an air pressure tube B (26), and one end of the air pressure tube A (20) and the air pressure tube B (26) are fixedly connected to an extrusion plate (23), and the lower end of the separation tube (18) is connected to a storage box (28), and one side of the storage box (28) is connected to a nozzle (30); A feed pipe (40) is provided at the upper end of the outer cover (9), one end of the feed pipe (40) is connected to a gear C (38), one side of the gear C (38) is connected to a rack (37), a storage pipe (35) is installed on the inner wall of the outer cover (9), one end of the storage pipe (35) is connected to the rack (37); An air intake pipe (31) is installed on the inner wall of the fixing frame (3), the outer side of the air intake pipe (31) is connected to a delivery pipe (29), and an air bag (34) is provided inside the delivery pipe (29).

2. A quality inspection device for a bearing sleeve according to claim 1, characterized in that: An electric push rod (4) is installed at the center of the upper end of the fixing frame (3), and the electric push rod (4) passes through the fixing frame (3) and extends to the lower end where it is connected to a motor (5).

3. The quality inspection device for a bearing sleeve according to claim 2, characterized in that: The output end of the motor (5) is rotatably connected to a rotating shaft (6), and one end of the rotating shaft (6) away from the motor (5) is connected to a protrusion. The upper end of the detection seat (2) is provided with a groove matching the protrusion, and the groove and the protrusion are located on the same vertical plane.

4. The quality inspection device for a bearing sleeve according to claim 1, characterized in that: The lower end of the detection seat (2) is fixedly connected to a connecting rod (11), and the connecting rod (11) extends through the operating table (1) to the lower end and is connected to the gear A (12). Two groups of gears B (13) are connected to the outside of the gear A (12), and one end of each of the two groups of gears B (13) is fixedly connected to a reciprocating screw (14). A piston (16) is provided inside the guide tube (15), and the piston (16) is connected to the ball nut pair of the reciprocating screw (14). One end of the guide tube (15) is connected to a connecting tube A (17), and the other end of the connecting tube A (17) is connected to a separation tube (18).

5. The quality inspection device for a bearing sleeve according to claim 1, characterized in that: The outer side of the separation tube (18) is connected to a branch tube A (19) and a branch tube B (25), the branch tube A (19) is connected to an air pressure tube A (20), and its branch tube B (25) is connected to an air pressure tube B (26), a pressure valve is provided at the connection between the separation tube (18) and the branch tube B (25), the lower end of the separation tube (18) is fixedly connected to a connecting tube B (27), and one end of the connecting tube B (27) is connected to a storage box (28).

6. The quality inspection device for a bearing sleeve according to claim 5, characterized in that: The air pressure tube A (20) and the air pressure tube B (26) are both movably connected to a push rod (21), one end of the push rod (21) located inside the air pressure tube A (20) and the air pressure tube B (26) is fixedly connected to a spring (22), and the spring (22) is connected to the inner wall of the air pressure tube A (20) and the air pressure tube B (26), and one end of the push rod (21) is fixedly connected to an extrusion plate (23), and a side of the extrusion plate (23) away from the push rod (21) is connected to multiple sets of movable shafts (24).

7. The quality inspection device for a bearing sleeve according to claim 1, characterized in that: The outer side of the rotating shaft (6) is movably connected to a limit plate (7), and a limit ring (8) is provided at the lower end of the limit plate (7). The limit ring (8) is connected to the rotating shaft (6), and the limit ring (8) is located inside the outer cover (9).

8. The quality inspection device for a bearing sleeve according to claim 1, characterized in that: Two groups of storage tubes (35) are installed inside the outer cover (9), and a push rod (36) is movably connected inside the storage tube (35). One end of the push rod (36) is connected to the rack (37), and one end of the gear C (38) is connected to a screw dragon piece (39). The screw dragon piece (39) is located inside the feed pipe (40), and one end of the feed pipe (40) is connected to the sand and gravel tank.

9. The quality inspection device for a bearing sleeve according to claim 1, characterized in that: The storage box (28) is connected to the outside of two groups of delivery pipes (29), one end of the two groups of delivery pipes (29) is connected to the nozzle (30), and the nozzle (30) is embedded in the fixing frame (3). The air intake pipe (31) is provided with two groups, and the inside of the two groups of air intake pipes (31) is movably connected to a piston rod (32), and the piston rod (32) and the limit plate (7) are located in the same vertical plane. The outside of the piston rod (32) is connected to a connecting pipe C (33), and one end of the connecting pipe C (33) passes through the delivery pipe (29) and extends to the inside to be connected to the air bag (34).

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