Hub airtight member detection device

Abstract

The utility model discloses a wheel hub airtight member detection device comprising a main body frame, the main body frame is provided with a driving motor and an oil cylinder, and a deceleration assembly used for driving the oil cylinder to rotate is arranged between the driving motor and the oil cylinder; a positioning bracket synchronously rotating with the oil cylinder is arranged below the oil cylinder, a hanger shaft for connecting the positioning bracket with the oil cylinder is arranged between the positioning bracket and the oil cylinder, and a middle pressure plate is arranged on a piston shaft of the oil cylinder; a water tank assembly capable of ascending and descending relative to the positioning support is arranged below the positioning support, a controller is further arranged on the main body frame, and the controller is electrically connected with the driving motor. The rotating position of the positioning support can be accurately controlled through the speed reduction assembly and the controller, the rotating process of the hub is smoother, the fixing effect is good, and an operator can conveniently observe whether the hub leaks air or not and rapidly find the air leakage position.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub detection devices, and in particular relates to a wheel hub airtight component detection device. Background Art

[0002] After the wheel hub is manufactured, it is usually necessary to conduct an air tightness test. Only the wheel hub that passes the test can be used with the tire. The existing patent text with the publication number CN206832409U discloses a wheel hub air tightness detection device. The existing disclosed detection method is the water immersion detection method, which is to place the wheel hub on a fixture, and then immerse the wheel hub through a water tank to observe whether bubbles are generated in the wheel hub in the water tank. Since the existing wheel hubs are all fixed on the fixture, the wheel hub as a whole cannot be rotated; thus, the outer wall of the wheel hub cannot be observed in all directions. The operator needs to constantly change the position to observe the air tightness of the wheel hub, and the observation process is not convenient. At the same time, during the actual detection process, the direction of the wheel hub cannot be changed arbitrarily, which is not convenient for the operator to accurately locate the leak point. Therefore, it is necessary to design a wheel hub airtightness detection device to overcome the above difficulties. Summary of the Invention

[0003] In response to the problems existing in the prior art, the utility model designs a wheel hub airtight part detection device. The utility model can accurately control the rotation position of the positioning bracket through a deceleration component and a controller. The rotation process of the wheel hub is smoother and the fixing effect is better, which makes it convenient for the operator to observe whether the wheel hub is leaking and quickly find the location of the leak.

[0004] The invention object of the utility model is achieved through the following technical solutions: a wheel hub airtight parts detection device, comprising a main frame, a driving motor and a cylinder are provided on the main frame, a deceleration assembly for driving the cylinder to rotate is provided between the driving motor and the cylinder; a positioning bracket is provided below the cylinder and rotates synchronously with the cylinder, a hanging shaft connecting the positioning bracket and the cylinder is provided between the positioning bracket and the cylinder, an intermediate pressure plate is provided on the piston shaft of the cylinder; a water tank assembly that can be raised and lowered relative to the positioning bracket is provided below the positioning bracket, and a controller is also provided on the main frame, and the controller is electrically connected to the driving motor.

[0005] Preferably, a first bearing is provided between the oil cylinder and the main frame, a first sleeve is provided on the main frame, and the first bearing is installed in the first sleeve; the hanging shaft and the oil cylinder are fixedly connected, and the first bearing is installed between the first sleeve and the hanging shaft; the positioning bracket is fixedly installed at the end of the hanging shaft; the deceleration assembly includes a first gear, a second gear and a third gear, the first gear is fixedly installed on the oil cylinder, the second gear is installed on the drive motor, and the third gear is installed between the first gear and the second gear; the intermediate pressure plate is arranged toward the bottom of the positioning bracket, and an air inlet nozzle is provided on the piston rod of the oil cylinder.

[0006] When the drive motor is operating, the second gear drives the third gear, which in turn drives the first gear. The first gear is fixedly mounted on the oil cylinder, allowing it to rotate relative to the main frame. The oil cylinder is connected to the positioning bracket via a suspension shaft, allowing the oil cylinder and the positioning bracket to rotate synchronously. An intermediate pressure plate is installed on the oil cylinder's piston shaft, which secures the wheel hub during operation. Since the oil cylinder and the positioning bracket rotate synchronously, the wheel hub does not deflect relative to the positioning bracket during rotation, improving the wheel hub's positioning effect. Furthermore, the wheel hub can rotate freely relative to the main frame, allowing the operator to observe the wheel hub's overall contour from a single location, making observation more convenient and thorough.

[0007] Preferably, the main frame is provided with a rotating shaft and a second sleeve for mounting a third gear; the second sleeve is fixedly mounted on the main frame, and the rotating shaft is mounted in the second sleeve through a second bearing; the third gear engages the first gear and the second gear at the same time.

[0008] Preferably, the first gear, the second gear and the third gear are arranged on the same horizontal plane, the diameter of the second gear is smaller than the diameter of the third gear, and the diameter of the third gear is smaller than the diameter of the first gear.

[0009] By setting the rotating shaft and the second sleeve, the third gear is conveniently positioned, so that the drive motor can reliably drive the cylinder to rotate; because the diameter of the second gear is smaller than the diameter of the third gear, and the diameter of the third gear is smaller than the diameter of the first gear, the speed ratio of the drive motor and the cylinder can be reasonably adjusted, and the cylinder rotates more slowly and the rotation process is smoother.

[0010] Preferably, a locking nut is provided between the first gear and the cylinder, securing the first gear. The locking nut is mounted on the outer layer of the suspension shaft. A fastener is provided between the locking nut and the cylinder for securing the first gear. The fastener passes through the cylinder, the first gear, and the locking nut in sequence. The locking nut and fastener securely attach the first gear to the cylinder, allowing it to rotate synchronously with the cylinder. Because the positioning bracket is relatively large, secure attachment of the cylinder and the first gear ensures that the cylinder can reliably drive the positioning bracket.

[0011] Preferably, the oil cylinder is provided with an oil inlet joint and an air inlet, the main frame is provided with a hydraulic station and an air tank, the oil inlet joint is connected to the hydraulic station, and the oil inlet joint is a rotary joint; the air inlet is connected to the air tank, and the air inlet nozzle is also connected to the air tank; the air inlet nozzle and the intermediate pressure plate are connected to each other.

[0012] The oil inlet connector is connected to the hydraulic station via a metal pipe. Because it's a rotary joint, the cylinder rotates without interfering with the station. The air tanks are connected to the air inlet nozzle and air inlet via connecting hoses, commonly used in pneumatic tools. These hoses are not shown in the accompanying drawings. The ends of the connecting hoses are equipped with rotary joints, allowing them to be easily plugged in and out of the nozzle and air inlet.

[0013] Preferably, the intermediate pressure plate is provided with a first positioning seal fixedly connected thereto, and when the oil cylinder is working, the intermediate pressure plate is driven to move close to the bottom of the positioning bracket; a second positioning seal is provided at the bottom of the positioning bracket, and the first positioning seal and the second positioning seal are coaxially arranged.

[0014] By providing the first positioning seal and the second positioning seal, the wheel hub can be better sealed and positioned, ensuring that there will be no gaps in the wheel hub during the detection process, thereby further improving the detection accuracy.

[0015] Preferably, the outer layer of the oil cylinder is provided with a plurality of signal paddles, the main frame is provided with a first travel switch, and the first travel switch is arranged adjacent to the signal paddles; the first travel switch is electrically connected to the controller, and the controller is provided with a start-stop button and two steering buttons.

[0016] The signal paddle and first travel switch facilitate adjustment of the cylinder's rotational position. After one full rotation, the cylinder automatically stops and then reverses, allowing for automatic adjustment of the wheel hub's rotational position. A start / stop button on the controller allows for easy control of the wheel hub's rotational stop, making it easier to locate and observe air leaks. The steering button also allows for left and right rotation of the wheel hub, making the inspection process more convenient and more versatile.

[0017] Preferably, the water tank assembly includes a mounting seat, a first cylinder, a water tank connecting seat and a water tank body; the mounting seat is fixedly mounted on the main frame, and the mounting seat is provided with a first rail arranged in a pair, and the first rail is provided with a water tank connecting seat slidably connected thereto; the first cylinder is fixedly mounted on the mounting seat, and the piston shaft of the first cylinder is connected to the water tank connecting seat, and the water tank connecting seat and the water tank body are fixedly connected; an inlet valve is provided at the top open end of the water tank body, and a second stroke switch is also provided on the mounting seat; an intermediate pressure plate is provided on the piston shaft of the oil cylinder, and the second stroke switch is arranged between the intermediate pressure plate and the water tank body; lighting components are provided in pairs on the main frame, and the lighting components are arranged toward the water tank body; the second stroke switch and the lighting components are both electrically connected to the controller.

[0018] When the first cylinder is in operation, it controls the water tank connector to move up and down along the first track, which in turn drives the water tank body up and down, allowing it to submerge the wheel hub. A second travel switch facilitates control of the water tank's upward position, preventing interference between the water tank body and the bottom of the positioning bracket. Lighting also allows the operator to more clearly and intuitively observe the wheel hub inspection status.

[0019] Preferably, a pair of safety gratings are provided on the sides of the main frame, facing the lighting element. The safety gratings are electrically connected to the controller. By providing the safety gratings, the controller automatically issues an alarm when an operator crosses the gratings, making the detection process safer and more reliable.

[0020] Compared with the existing technology, the present invention has the following beneficial effects: 1. The present invention adjusts the speed ratio of the drive motor and the oil cylinder through the reduction assembly, so that the oil cylinder rotates slowly and the process of the oil cylinder rotation is smoother. 2. The oil cylinder and the positioning bracket rotate as a whole, and the wheel hub is pressed by the intermediate pressure plate when the oil cylinder is working; the positioning directly rotates slowly synchronously with the oil cylinder, and the speed of the two is the same; then the wheel hub will not slide relative to the positioning bracket during the rotation process, and the wheel hub can be well sealed during inspection. 3. The controller and the drive motor cooperate with each other to facilitate the control of the left and right rotation of the wheel hub; at the same time, the wheel hub can be accurately parked at any position after gear transmission, which is convenient for the operator to accurately locate the leaking area of ​​the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 A three-dimensional diagram from another perspective of the present invention;

[0023] Figure 3 This is a three-dimensional diagram of the water tank assembly of the present utility model;

[0024] Figure 4 This is a three-dimensional diagram of the hidden water tank assembly of the utility model;

[0025] Figure 5 This is the internal structure diagram of the utility model;

[0026] Markings in the figure: 1, main frame; 2, drive motor; 3, oil cylinder; 4, reduction assembly; 41, first gear; 42, second gear; 43, third gear; 5, positioning bracket; 6, hanging shaft; 7, intermediate pressure plate; 8, water tank assembly; 81, mounting base; 82, first cylinder; 83, water tank connecting base; 84, water tank body; 85, first track; 86, water inlet valve; 87, second travel switch; 9, controller; 91, start / stop button; 9 2. Steering button; 10. First bearing; 11. First bushing; 12. Air inlet nozzle; 13. Rotating shaft; 14. Second bushing; 15. Second bearing; 16. Locking nut; 17. Fastener; 18. Oil inlet connector; 19. Air inlet; 20. Hydraulic station; 21. Air tank; 22. First positioning seal; 23. Second positioning seal; 24. Signal paddle; 25. First travel switch; 26. Lighting element; 27. Safety light grid. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0028] like Figures 1 to 5 As shown, this embodiment discloses a wheel hub airtight part detection device, including a main frame 1, on which a driving motor 2 and a cylinder 3 are provided, and a deceleration component 4 for driving the cylinder 3 to rotate is provided between the driving motor 2 and the cylinder 3; a positioning bracket 5 that rotates synchronously with the cylinder 3 is provided below the cylinder 3, and a hanging shaft 6 connecting the positioning bracket 5 and the cylinder 3 is provided between the positioning bracket 5 and the cylinder 3, and an intermediate pressure plate 7 is provided on the piston shaft of the cylinder 3; a water tank component 8 that can be raised and lowered relative to the positioning bracket 5 is provided below the positioning bracket 5, and a controller 9 is also provided on the main frame 1, and the controller 9 is electrically connected to the driving motor 2.

[0029] A first bearing 10 is provided between the oil cylinder 3 and the main frame 1. A first sleeve 11 is provided on the main frame 1, and the first bearing 10 is mounted within the first sleeve 11. The suspension shaft 6 is fixedly connected to the oil cylinder 3, and the first bearing 10 is mounted between the first sleeve 11 and the suspension shaft 6. The positioning bracket 5 is fixedly mounted on the end of the suspension shaft 6. The reduction assembly 4 includes a first gear 41, a second gear 42, and a third gear 43. The first gear 41 is fixedly mounted on the oil cylinder 3, the second gear 42 is mounted on the drive motor 2, and the third gear 43 is mounted between the first gear 41 and the second gear 42. The intermediate pressure plate 7 is positioned toward the bottom of the positioning bracket 5, and the piston rod of the oil cylinder 3 is provided with an air inlet nozzle 12. The main frame 1 is provided with a rotating shaft 13 and a second sleeve 14 for mounting the third gear 43. The second sleeve 14 is fixedly mounted on the main frame 1, and the rotating shaft 13 is mounted within the second sleeve 14 via a second bearing 15. The third gear 43 engages with both the first gear 41 and the second gear 42. The first gear 41, second gear 42, and third gear 43 are arranged on the same horizontal plane. The diameter of the second gear 42 is smaller than that of the third gear 43, and the diameter of the third gear 43 is smaller than that of the first gear 41. A locking nut 16 is provided between the first gear 41 and the oil cylinder 3 to lock the first gear 41. The locking nut 16 is mounted on the outer layer of the suspension shaft 6. A fastener 17 is provided between the locking nut 16 and the oil cylinder 3 for fixing. The fastener 17 passes through the oil cylinder 3, the first gear 41, and the locking nut in sequence.

[0030] The oil cylinder 3 is equipped with an oil inlet connector 18 and an air inlet 19. The main frame 1 is equipped with a hydraulic station 20 and an air tank 21. The oil inlet connector 18 is connected to the hydraulic station 20 and is a rotary joint. The air inlet 19 is connected to the air tank 21, and the air inlet nozzle 12 is also connected to the air tank 21. The air inlet nozzle 12 is interconnected with the intermediate pressure plate 7. The intermediate pressure plate 7 is fixedly connected to a first positioning seal 22. When the oil cylinder 3 is in operation, it drives the intermediate pressure plate 7 to move closer to the bottom of the positioning bracket 5. A second positioning seal 23 is provided at the bottom of the positioning bracket 5. The first and second positioning seals 22 and 23 are coaxially arranged. The outer layer of the oil cylinder 3 is equipped with a plurality of signal paddles 24. The main frame 1 is equipped with a first travel switch 25, which is located adjacent to the signal paddles 24. The first travel switch 25 is electrically connected to the controller 9, which is equipped with a start / stop button 91 and two steering buttons 92.

[0031] The water tank assembly 8 includes a mounting seat 81, a first cylinder 82, a water tank connecting seat 83 and a water tank body 84; the mounting seat 81 is fixedly mounted on the main frame 1, and a first rail 85 is arranged in a pair on the mounting seat 81, and a water tank connecting seat 83 is provided on the first rail 85 to be slidably connected thereto; the first cylinder 82 is fixedly mounted on the mounting seat 81, and the piston shaft of the first cylinder 82 is connected to the water tank connecting seat 83, and the water tank connecting seat 83 and the water tank body 84 are fixedly connected; an inlet valve 86 is provided at the top open end of the water tank body 84, and a second travel switch 87 is also provided on the mounting seat 81; an intermediate pressure plate 7 is provided on the piston shaft of the oil cylinder 3, and the second travel switch 87 is arranged between the intermediate pressure plate 7 and the water tank body 84; a pair of lighting components 26 are provided on the main frame 1, and the lighting components 26 are arranged toward the water tank body 84; the second travel switch 87 and the lighting component 26 are both electrically connected to the controller 9. The side surfaces of the main frame 1 are further provided with safety gratings 27 arranged in pairs, and the safety gratings 27 are arranged toward the lighting element 26 ; the safety gratings 27 are electrically connected to the controller 9 .

[0032] The specific operation process of this embodiment is as follows: the wheel hub to be inspected is automatically placed on the second positioning seal 23 of the positioning bracket 5 through the conveyor line, and then the oil cylinder 3 is operated to control the intermediate pressure plate 7 to press down, so that the wheel hub is reliably clamped between the first positioning seal 22 and the second positioning seal 23; then the water tank assembly 8 starts to work, and when the first cylinder 82 is working, the water tank connecting seat 83 is controlled to move up and down along the first track 85, and the water tank connecting seat 83 can drive the water tank body 84 to move up and down, so that the water tank body 84 can be easily immersed in the wheel hub. By setting a second travel switch 87, it is convenient to control the rising position of the water tank body 84, avoiding interference between the water tank body and the bottom of the positioning bracket 5 84. By setting the lighting component 26, it is convenient for the operator to observe the inspection status of the wheel hub more clearly and intuitively.

[0033] Once the wheel hub is submerged, the drive motor 2 controls the synchronous rotation of the cylinder 3 and the positioning bracket 5 via the reduction gear assembly 4. During operation, the drive motor 2 drives the third gear 43 via the second gear 42. The rotation of the third gear 43 drives the first gear 41. The first gear 41 is fixed to the cylinder, allowing the cylinder 3 to rotate relative to the main frame 1. The cylinder 3 is connected to the positioning bracket 5 via the suspension shaft 6, allowing the cylinder 3 and the positioning bracket 5 to rotate synchronously. Because the cylinder 3 and the positioning bracket 5 rotate synchronously, the wheel hub does not deflect relative to the positioning bracket 5 during rotation, improving wheel hub positioning. The signal paddle 24 and the first travel switch 25 facilitate adjustment of the rotational position of the cylinder 3. After one rotation, the cylinder 3 automatically stops and then reverses, facilitating automatic adjustment of the wheel hub's rotational position. A start / stop button 91 is provided on the controller to easily stop the wheel hub at any time, facilitating the detection and observation of air leaks. A turn button 92 also allows for left and right rotation of the wheel hub, making the inspection process more convenient and versatile.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A wheel hub airtight component detection device, comprising a main frame (1), characterized in that: A driving motor (2) and an oil cylinder (3) are provided on the main frame (1); a speed reduction assembly (4) for driving the oil cylinder (3) to rotate is provided between the driving motor (2) and the oil cylinder (3); a positioning bracket (5) rotating synchronously with the oil cylinder (3) is provided below the oil cylinder (3); a suspension shaft (6) connecting the positioning bracket (5) and the oil cylinder (3) is provided between the positioning bracket (5) and the oil cylinder (3); an intermediate pressure plate (7) is provided on the piston shaft of the oil cylinder (3); a water tank assembly (8) capable of rising and falling relative to the positioning bracket (5) is provided below the positioning bracket (5); a controller (9) is also provided on the main frame (1); the controller (9) is electrically connected to the driving motor (2).

2. The wheel hub airtight component detection device according to claim 1, characterized in that: A first bearing (10) is provided between the oil cylinder (3) and the main frame (1), a first shaft sleeve (11) is provided on the main frame (1), and the first bearing (10) is installed in the first shaft sleeve (11); the hanging shaft (6) and the oil cylinder (3) are fixedly connected, and the first bearing (10) is installed between the first shaft sleeve (11) and the hanging shaft (6); the positioning bracket (5) is fixedly installed at the end of the hanging shaft (6); the reduction assembly (4) includes a first gear (41), a second gear (42) and a third gear (43), the first gear (41) is fixedly installed on the oil cylinder (3), the second gear (42) is installed on the drive motor (2), and the third gear (43) is installed between the first gear (41) and the second gear (42); the intermediate pressure plate (7) is arranged toward the bottom of the positioning bracket (5), and an air inlet nozzle (12) is provided on the piston rod of the oil cylinder (3).

3. The wheel hub airtight component detection device according to claim 2, characterized in that: The main frame (1) is provided with a rotating shaft (13) and a second shaft sleeve (14) for mounting a third gear (43); the second shaft sleeve (14) is fixedly mounted on the main frame (1), and the rotating shaft (13) is mounted in the second shaft sleeve (14) via a second bearing (15); the third gear (43) simultaneously engages with the first gear (41) and the second gear (42).

4. The wheel hub airtight component detection device according to claim 3, characterized in that: The first gear (41), the second gear (42) and the third gear (43) are arranged on the same horizontal plane, the diameter of the second gear (42) is smaller than the diameter of the third gear (43), and the diameter of the third gear (43) is smaller than the diameter of the first gear (41).

5. The wheel hub airtight component detection device according to claim 2, characterized in that: A locking nut (16) for locking the first gear (41) is provided between the first gear (41) and the oil cylinder (3), and the locking nut (16) is mounted on the outer layer of the suspension shaft (6); a fastener (17) for fixing is provided between the locking nut (16) and the oil cylinder (3); the fastener (17) passes through the oil cylinder (3), the first gear (41) and the locking nut in sequence.

6. The wheel hub airtight component detection device according to claim 2, characterized in that: The oil cylinder (3) is provided with an oil inlet joint (18) and an air inlet (19); the main frame (1) is provided with a hydraulic station (20) and an air storage tank (21); the oil inlet joint (18) is connected to the hydraulic station (20); the oil inlet joint (18) is a rotary joint; the air inlet (19) is connected to the air storage tank (21); the air inlet nozzle (12) is also connected to the air storage tank (21); the air inlet nozzle (12) and the intermediate pressure plate (7) are communicated with each other.

7. The wheel hub airtight component detection device according to claim 6, characterized in that: The intermediate pressure plate (7) is provided with a first positioning seal (22) fixedly connected thereto, and when the oil cylinder (3) is in operation, the intermediate pressure plate (7) is driven to move close to the bottom of the positioning bracket (5); a second positioning seal (23) is provided at the bottom of the positioning bracket (5), and the first positioning seal (22) and the second positioning seal (23) are coaxially arranged.

8. The wheel hub airtight component detection device according to claim 1, characterized in that: The outer layer of the oil cylinder (3) is provided with a plurality of signal paddles (24), and the main frame (1) is provided with a first travel switch (25), and the first travel switch (25) is arranged adjacent to the signal paddles (24); the first travel switch (25) is electrically connected to the controller (9), and the controller (9) is provided with a start / stop button (91) and two steering buttons (92).

9. The wheel hub airtight component detection device according to claim 1, characterized in that: The water tank assembly (8) comprises a mounting seat (81), a first cylinder (82), a water tank connecting seat (83) and a water tank body (84); the mounting seat (81) is fixedly mounted on the main frame (1); the mounting seat (81) is provided with a first rail (85) arranged in pairs; the first rail (85) is provided with a water tank connecting seat (83) slidably connected thereto; the first cylinder (82) is fixedly mounted on the mounting seat (81); the piston shaft of the first cylinder (82) is connected to the water tank connecting seat (83); the water tank connecting seat (83) and the water tank body (84) are connected to each other. ) are fixedly connected; a water inlet valve (86) is provided at the top open end of the water tank body (84), and a second travel switch (87) is also provided on the mounting seat (81); an intermediate pressure plate (7) is provided on the piston shaft of the oil cylinder (3), and the second travel switch (87) is arranged between the intermediate pressure plate (7) and the water tank body (84); a pair of lighting elements (26) are provided on the main frame (1), and the lighting elements (26) are arranged toward the water tank body (84); the second travel switch (87) and the lighting element (26) are both electrically connected to the controller (9).

10. The wheel hub airtight component detection device according to claim 9, characterized in that: The side surface of the main frame (1) is also provided with safety gratings (27) arranged in pairs, and the safety gratings (27) are arranged toward the lighting element (26); the safety gratings (27) are electrically connected to the controller (9).

Images