Auxiliary mounting device for hub bearing

Abstract

The utility model provides a hub bearing auxiliary installation device which comprises a base, a rack, a detection mechanism and a controller, a groove is formed in the top of the base, a motor is arranged in the groove, an output shaft of the motor is connected with a rotary table, a positioning pin is vertically arranged at the top of the rotary table, and a plurality of circular grooves are formed in the top of the rotary table. A second electric push rod is arranged on the lower side face of the top of the rack, a through hole is formed in the telescopic end of the second electric push rod, a controller is arranged on the side face of the base, the motor, the first electric push rod and the second electric push rod are electrically connected with the controller, a brake disc can be fixed through multiple circular grooves, and a bearing and the brake disc can be automatically centered through positioning pins. A plurality of manual operation procedures are reduced, the mounting precision and the working efficiency are improved, a stress strain gauge is mounted on the electric push rod to monitor the pressure in real time, when the mounting pressure is abnormal, an alarm is given and stopped, the runout of the bearing is detected after mounting is completed, and the practicability of the auxiliary device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing installation, in particular to an auxiliary installation device for a wheel hub bearing. Background Art

[0002] Wheels are an important part of cars. Hub bearings are the core parts of wheel assemblies. Hub bearings are parts that connect brake discs and steering knuckles. Their main function is to reduce the friction between the brake discs and steering knuckles when they rotate against each other. They also bear very large radial and axial loads. Especially when the vehicle is turning, the force is complex and often carries impact loads. It not only supports the vehicle body but also bears the bumps of the road. The speed of the car is fast, and the performance requirements of hub bearings are relatively high. Therefore, the installation and disassembly technology requirements of hub bearings in automobile industrial production are very high. At present, hard bridge suspension generally uses the first generation of hub bearings. On the production line, the hub bearings are pressed into the brake disc through special tooling and then installed into the steering knuckle mandrel. The hub bearings and mandrels use interference fit and the clamping force is large. When the vehicle is hit and the hub bearings are abnormal, the hub bearings need to be disassembled and inspected, and then installed back. In the prior art, the wheel hub bearing is generally disassembled by using a puller. When replacing a new wheel hub bearing, the brake disc is first fixed, and then the wheel hub bearing is aligned with the inner hole of the brake disc, an auxiliary iron core is placed on the wheel hub bearing, and then the wheel hub bearing is struck with a hammer or the wheel hub bearing is pressed into the brake disc by a hydraulic press. The installation process involves multiple steps, and there is a large error in the manual centering of the wheel hub bearing and the brake disc axis, resulting in relatively low installation accuracy and efficiency. Utility Model Content

[0003] In view of this, the utility model proposes a wheel hub bearing auxiliary installation device, which utilizes a first electric push rod and an arc block to assist in fixing the brake disc, and a locating pin automatically centers the wheel hub bearing and the brake disc. A second electric push rod is used to press the wheel hub bearing into the brake disc, and a stress strain gauge is installed to monitor the downward pressure of the second electric push rod in real time, thereby protecting the safety of the wheel hub bearing and the brake disc, reducing multiple manual operation procedures, and improving installation accuracy and efficiency.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A wheel hub bearing auxiliary installation device comprises a base, a frame, a detection mechanism and a controller, a groove is provided on the top of the base, a motor is provided in the groove, the output shaft of the motor is connected to a turntable, a positioning pin is vertically provided on the top of the turntable, a plurality of circular grooves are provided on the top of the turntable, support plates are provided on both sides of the top of the base opposite to each other, first electric push rods are provided on the sides of two support plates respectively, the telescopic ends of the two first electric push rods are connected with arc blocks, and the two arc blocks fix the brake disc in the middle position, the frame is arranged on the side of the base, a second electric push rod is provided on the lower side of the top of the frame, a through hole is provided on the telescopic end of the second electric push rod, the axis of the second electric push rod coincides with the axis of the positioning pin, the controller is arranged on the side of the base, and the motor, the first electric push rod, the second electric push rod and the controller are electrically connected.

[0006] Preferably, the detection mechanism includes a third electric push rod, a bracket, a nut, a slider, a dial indicator, a pressure plate and a bolt. The third electric push rod is arranged on the upper lower side of the frame, the telescopic end of the third electric push rod passes through the bracket and is screwed with the nut, the top surface of the bracket is provided with a first long hole, the side surface of the bracket is provided with a second long hole, the slider is provided in the second long hole, the dial indicator is slidably passed through the slider, the pressure plate abuts against the side surface of the bracket, and the bolt passes through the pressure plate and is screwed with the slider.

[0007] Preferably, the device also includes a stress strain gauge and an alarm light. The stress strain gauge is arranged on the side of the telescopic end of the second electric push rod and has the function of detecting the stress of the second electric push rod. The alarm light is arranged on the top lower side of the frame. The stress strain gauge and the alarm light are electrically connected to the controller.

[0008] Preferably, a semicircular annular groove is disposed opposite to the top surface of the base and the bottom surface of the turntable, and a plurality of balls are disposed in the annular groove, and the balls support the turntable to rotate.

[0009] Preferably, the arc block comprises an arc plate and an arc rubber, and the arc rubber is fixedly connected to the side wall of the arc plate.

[0010] Preferably, support legs are provided at the bottom of the base.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] ① Use auxiliary devices to press the wheel hub bearing onto the brake disc. The turntable is equipped with multiple circular grooves to fix the brake disc. The turntable is equipped with positioning pins to automatically center the wheel hub bearing. An electric push rod is used to press the wheel hub bearing into the brake disc, which reduces multiple manual operation procedures and improves installation accuracy and work efficiency.

[0013] ②A stress strain gauge is installed on the electric push rod to detect the pressing force of the electric push rod in real time. When the installation pressure of the wheel hub bearing and the brake disc increases abnormally, an alarm is issued and further pressure is stopped to avoid the wheel hub bearing and the brake disc from getting stuck.

[0014] ③After installation, the runout of the wheel hub bearing can be tested to further improve the practicality of the auxiliary device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a wheel hub bearing auxiliary installation device of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a wheel hub bearing auxiliary installation device of the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Sectional view at the middle BB;

[0020] Figure 5 A three-dimensional diagram of a detection mechanism of a wheel hub bearing auxiliary installation device of the utility model;

[0021] Figure 6 A cross-sectional view of a detection mechanism of a wheel hub bearing auxiliary installation device of the utility model;

[0022] Figure 7 A schematic diagram of an arc block of a wheel hub bearing auxiliary installation device of the utility model;

[0023] Figure numerals: 1. frame; 2. base; 3. turntable; 4. groove; 5. positioning pin; 6. support plate; 7. first electric push rod; 8. brake disc; 9. motor; 10. circular groove; 11. arc block; 12. wheel hub bearing; 13. second electric push rod; 14. through hole; 15. controller; 16. third electric push rod; 17. bracket; 18. dial indicator; 19. bolt; 20. stress strain gauge; 21. first long hole; 22. second long hole; 23. slider; 24. pressure plate; 25. warning light; 26. ball; 27. support leg; 28. nut; 29. ​​semicircular ring groove; 111. arc plate; 112. arc rubber. DETAILED DESCRIPTION

[0024] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0025] See also Figures 1 to 7 The utility model provides a wheel hub bearing auxiliary installation device, including a base 2, a frame 1, a detection mechanism and a controller 15. The top of the base 2 is provided with a groove 4, the groove 4 opens upward and is located in the middle of the base 2, a motor 9 is arranged in the groove 4, the motor 9 is installed at the bottom of the groove 4, the output shaft of the motor 9 is connected with a turntable 3, the turntable 3 is located above the base 2, a positioning pin 5 is vertically arranged on the top of the turntable 3, and a chamfer is arranged at the end of the positioning pin 5, which is conducive to the insertion of the wheel hub bearing 12, and a plurality of circular grooves 10 are arranged on the top of the turntable 3, the pitch circle diameter of the plurality of circular grooves 10 is the same as the pitch circle diameter of the brake disc 8 mounting bolts, the number of the circular grooves 10 matches the number of the brake disc 8 mounting bolts, and the circular grooves 10 are used to accommodate The brake disc 8 is mounted with bolts, and support plates 6 are provided on both sides of the top of the base 2. First electric push rods 7 are provided on the sides of the two support plates 6 respectively, and the telescopic ends of the two first electric push rods 7 are connected with arc blocks 11. The two arc blocks 11 fix the brake disc 8 in the middle position of the turntable 3. The frame 1 is arranged on the side of the base 2, and a second electric push rod 13 is provided on the lower side of the top of the frame 17. The telescopic end of the second electric push rod 13 is facing downward, and a through hole 14 is provided on the telescopic end of the second electric push rod 13. The diameter of the through hole 14 is slightly larger than the diameter of the positioning pin 5, and the axis of the second electric push rod 13 coincides with the axis of the positioning pin 5. The controller 15 is arranged on the side of the base 2, and the motor 9, the first electric push rod 7, the second electric push rod 13 are electrically connected to the controller 15.

[0026] When the wheel hub bearing 12 is pressed onto the brake disc 8, the brake disc 8 is first placed on the top surface of the turntable 3, and multiple mounting bolts on one side of the brake disc 8 are placed in the circular groove 10, and then the first electric push rod 7 is started, and the telescopic end of the first electric push rod 7 moves toward the middle, thereby driving the arc block 11 to move toward the middle, and the two arc blocks 11 clamp the brake disc 8 and fix it, and then the wheel hub bearing 12 is inserted into the positioning pin 5, so that the wheel hub bearing 12 is aligned with the middle mounting hole of the brake disc 8. At this time, lubricating oil is applied to the wheel hub bearing 12, which is conducive to the press-fitting of the wheel hub bearing 12, and then the second electric push rod 13 is started, and the second electric push rod 13 moves downward until the bottom surface of the end portion abuts against the outer ring of the wheel hub bearing 12. At this time, the through hole 14 at the telescopic end of the second electric push rod 13 is inserted into the positioning pin 5, and the second electric push rod 13 continues to move downward to press the wheel hub bearing 12 into the brake disc 8, completing the press-fitting operation of the wheel hub bearing 12, and the controller 15 controls the second electric push rod 13 to automatically reset.

[0027] Preferably, the detection mechanism includes a third electric push rod 16, a bracket 17, a nut 28, a slider 23, a dial indicator 18, a pressure plate 24 and a bolt 19, wherein the third electric push rod 16 is arranged on the upper lower side of the frame 1, the telescopic end of the third electric push rod 16 passes through the bracket 17 and is screwed with the nut 28, the top surface of the bracket 17 is provided with a first long hole 21, the side surface of the bracket 17 is provided with a second long hole 22, the slider 23 is arranged in the second long hole 22, the dial indicator 18 is slidably penetrated through the slider 23, the pressure plate 24 abuts against the side of the bracket 17, and the bolt 19 passes through the pressure plate 24 and is screwed with the slider 23.

[0028] After the press-fitting operation of the wheel hub bearing 12 is completed, the third electric push rod 16 is started, and the telescopic end of the third electric push rod 16 drives the bracket 17 to move downward to the predetermined position, loosens the nut 28 to rotate the bracket 17 by a certain angle, and rotates the bolt 19 to loosen the slider 23. By adjusting the position of the slider 23 in the second long hole 22 of the bracket 17, the detection pointer of the dial indicator 18 is brought into contact with the outer ring end face of the wheel hub bearing 12, and then the bolt 19 and the nut 28 are tightened, and then the first electric push rod 7 is started. The first electric push rod 7 resets the arc block 11, and then the motor 9 is started. The motor 9 drives the turntable 3 to rotate together, thereby driving the brake disc 8 and the wheel hub bearing 12 to rotate, rotate at least one circle, observe and record the dial indicator 18, and complete the detection of the runout of the wheel hub bearing 12.

[0029] Preferably, it also includes a stress strain gauge 20 and an alarm light 25. The stress strain gauge 20 is arranged on the side of the telescopic end of the second electric push rod 13, and has the function of detecting the stress of the second electric push rod 13. The alarm light 25 is arranged on the top lower side of the frame 1. The stress strain gauge 20 and the alarm light 25 are electrically connected to the controller 15.

[0030] The function of the stress strain gauge 20 is to monitor the downward pressure of the telescopic end of the second electric push rod 13 in real time. When there are impurities on the surface of the wheel hub bearing 12 or impurities in the inner hole of the brake disc 8, the wheel hub bearing 12 and the brake disc 8 are likely to get stuck, and the downward pressure of the second electric push rod 13 will increase. After receiving the signal, the controller 15 will control the second electric push rod 13 to stop moving and light up the alarm light 25 at the same time. This plays a protective role and prevents the second electric push rod 13 from continuing to press downward and damaging the wheel hub bearing 12 and the brake disc 8.

[0031] Preferably, a semicircular annular groove 29 is disposed on the top surface of the base 2 and the bottom surface of the turntable 3 . A plurality of balls 26 are disposed in the semicircular annular groove 29 . The balls 26 support the turntable 3 to rotate.

[0032] The semicircular annular groove 29 on the top surface of the base 2 and the semicircular annular groove 29 on the bottom surface of the turntable 3 have the same diameter and are coaxial. Multiple balls 26 can roll in the semicircular annular groove 29 to support the turntable 3 and reduce the friction between the turntable 3 and the base 2, which is beneficial to detect the runout of the wheel hub bearing 12.

[0033] Preferably, the arc block 11 includes an arc plate 111 and an arc rubber 112 , and the arc rubber 112 is fixedly connected to the side wall of the arc plate 111 .

[0034] The arc-shaped rubber 112 can increase the friction between the brake disc 8 , which is not only conducive to fixing the brake disc 8 , but also can avoid scratching the surface of the brake disc 8 .

[0035] Preferably, support legs 27 are provided at the bottom of the base 2 .

[0036] The supporting legs 27 play the role of supporting the base 2, so that the turntable 3 is set at a reasonable height, which is beneficial for operators to operate the brake disc 8 and the wheel hub bearing 12, reduce bending movements, and reduce labor intensity.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheel hub bearing auxiliary installation device, characterized in that: It includes a base, a frame, a detection mechanism and a controller. The top of the base is provided with a groove, the groove is provided with a motor, the output shaft of the motor is connected to a turntable, the top of the turntable is vertically provided with a positioning pin, the top of the turntable is provided with a plurality of circular grooves, support plates are provided on both sides of the top of the base, two first electric push rods are respectively provided on the sides of the two support plates, the telescopic ends of the two first electric push rods are connected with arc blocks, and the two arc blocks fix the brake disc in the middle position, the frame is provided on the side of the base, the lower side of the top of the frame is provided with a second electric push rod, the telescopic end of the second electric push rod is provided with a through hole, the axis of the second electric push rod coincides with the axis of the positioning pin, the controller is provided on the side of the base, and the motor, the first electric push rod, the second electric push rod and the controller are electrically connected.

2. A wheel hub bearing auxiliary installation device according to claim 1, characterized in that: The detection mechanism includes a third electric push rod, a bracket, a nut, a slider, a dial indicator, a pressure plate and a bolt. The third electric push rod is arranged on the upper lower side of the frame. The telescopic end of the third electric push rod passes through the bracket and is screwed with the nut. The top surface of the bracket is provided with a first long hole, and the side surface of the bracket is provided with a second long hole. The slider is arranged in the second long hole, the dial indicator is slidably passed through the slider, the pressure plate abuts against the side surface of the bracket, and the bolt passes through the pressure plate and is screwed with the slider.

3. A wheel hub bearing auxiliary installation device according to claim 1, characterized in that: It also includes a stress strain gauge and an alarm light. The stress strain gauge is arranged on the side of the telescopic end of the second electric push rod and has the function of detecting the stress of the second electric push rod. The alarm light is arranged on the top lower side of the frame. The stress strain gauge and the alarm light are electrically connected to the controller.

4. A wheel hub bearing auxiliary installation device according to claim 1, characterized in that: The top surface of the base and the bottom surface of the turntable are oppositely provided with semicircular annular grooves, a plurality of balls are arranged in the annular grooves, and the balls support the turntable to rotate.

5. The wheel hub bearing auxiliary installation device according to claim 1, characterized in that: The arc block comprises an arc plate and an arc rubber, and the arc rubber is fixedly connected to the side wall of the arc plate.

6. The wheel hub bearing auxiliary installation device according to claim 1, characterized in that: The bottom of the base is provided with supporting legs.

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