Hub bearing grease injection rotating device

Abstract

The utility model discloses a kind of wheel hub bearing grease injection rotary devices, belong to the technical field of automobile production equipment, including the rack with upper cylinder, the upper cylinder is connected with grease injection head, it is characterized by: the rack is also provided with lower cylinder and positioning plate, the lower cylinder is connected with support head, the positioning plate is provided with through-hole, the support head can pass through the through-hole, one end of the positioning plate is equipped with support plate, one end of the support plate is equipped with side cylinder, the upper of the support plate is equipped with slidable translation plate, the side cylinder is connected with the translation plate, servo motor and multiple driving wheels are equipped on the translation plate, the servo motor is connected with multiple driving wheels. The utility model is to solve the problem that the existing wheel hub bearing grease injection machine needs to replace positioning seat due to different wheel hub styles, which increases working time and labor intensity.

Description

Technical Field

[0001] This utility model belongs to the field of automobile production equipment technology, and relates to a rotating device for grease injection into wheel hub bearings. Background Technology

[0002] The automotive wheel hub is one of the main components of the chassis system, playing a crucial role in supporting the vehicle's weight, enabling wheel rotation, mounting and positioning the wheels, and transmitting power. To ensure the quality of wheel hub products, the wheel hub assembly process is particularly important. Among these processes, grease injection into the bearings installed inside the wheel hub is a key step in reducing wheel hub friction and wear, and increasing wheel hub lifespan. A current wheel hub bearing grease injection machine mainly includes a frame with a positioning seat, an upper cylinder, a grease injection head, and a motor. The positioning seat is driven to rotate by the motor, and the upper cylinder controls the raising and lowering of the grease injection head so that it presses against the bearings of the wheel hub. A tapered needle roller bearing is installed at the end of the grease injection head to reduce friction and facilitate wheel hub rotation. The grease injection head has an internal oil passage and is connected to an external automatic grease injection device to perform grease injection into the wheel hub bearings. In use, the wheel hub with the bearings assembled is first fixed on the positioning seat. The grease injection head descends, pressing the tapered needle roller bearings against the wheel hub bearings. The motor drives the positioning seat to rotate the wheel hub at a uniform speed, and then the grease injection head begins to inject grease into the rollers of the wheel hub bearings. However, the existing wheel hub bearing grease injection machine uses a motor to control the rotation of the positioning seat, which in turn drives the wheel hub to rotate. However, this structure has significant drawbacks. For each new wheel hub product, a new positioning seat must be designed to fit that wheel hub. When the production line changes to assemble other types of wheel hubs, the positioning seat needs to be replaced, which greatly increases the changeover time and the labor intensity of the operators. Utility Model Content

[0003] This utility model provides a rotating device for lubricating wheel hub bearings, which solves the problem that existing wheel hub bearing lubricating machines require changing the positioning seat due to different wheel hub styles, thus increasing working time and labor intensity.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A frame equipped with an upper cylinder is included, the upper cylinder being connected to a grease injection head. The grease injection head has an internal oil passage and is externally connected to an automatic grease injection device. The frame also includes a lower cylinder and a positioning plate. The lower cylinder is connected to a support head. The positioning plate has a through hole through which the support head can pass. A support plate is provided at one end of the positioning plate, and a side cylinder is provided at one end of the support plate. A slidable translation plate is provided on the support plate, and the side cylinder is connected to the translation plate. A servo motor and multiple drive wheels are provided on the translation plate. The servo motor is connected to multiple drive wheels. The wheel hub is placed on the positioning plate, and the bearing at the center of the wheel hub is aligned with the through hole. The lower cylinder controls the support head to rise and lift the wheel hub bearing, while the upper cylinder controls the grease injection head to descend and press against the wheel hub bearing. The support head and the grease injection head clamp the wheel hub bearing. The side cylinder controls the translation plate to move towards the wheel hub, so that the multiple drive wheels are pressed against the wheel hub rim. The servo motor drives the multiple drive wheels to rotate, causing the wheel hub to rotate at a uniform speed. The grease injection head begins to inject grease into the rollers of the wheel hub bearing.

[0005] A more specific technical solution than the above-mentioned technical solution is that both the grease injection head and the support head are equipped with tapered needle roller bearings at their ends, which can reduce friction and facilitate hub rotation.

[0006] Furthermore: the support plate is provided with a slide rail and a side cylinder mounting seat, the cylinder body of the side cylinder is connected to the side cylinder mounting seat, the bottom of the translation plate is provided with a slider adapted to the slide rail, the motor mounting seat is provided with a side cylinder connector, and the side cylinder connector is connected to the piston rod of the side cylinder.

[0007] Furthermore: the translation plate is provided with a motor mounting base, three guide wheels and two drive wheels. The servo motor is mounted on the motor mounting base. The output shaft of the servo motor is connected to the two drive wheels through a belt and the three guide wheels. The guide wheels optimize the belt transmission path and adapt to the power transmission requirements of the two drive wheels.

[0008] Furthermore: the positioning plate is located in the middle of the frame. The upper and lower parts of the frame are respectively provided with an upper cylinder mounting seat and a lower cylinder mounting seat. Guide holes are opened at both ends of the upper cylinder mounting seat and the lower cylinder mounting seat. The cylinder body of the upper cylinder is connected to the middle of the upper cylinder mounting seat. The piston rod of the upper cylinder is connected to the lower part of the upper guide block. Upper guide rods are provided at both ends of the upper guide block. The upper guide rods can be slidably installed in the guide holes of the upper cylinder mounting seat. The grease injection head is installed in the lower part of the upper guide block. The cylinder body of the lower cylinder is connected to the middle of the lower cylinder mounting seat. The piston rod of the lower cylinder is connected to the lower part of the lower guide block. Lower guide rods are provided at both ends of the lower guide block. The lower guide rods can be slidably installed in the guide holes of the lower cylinder mounting seat. The support head is installed in the upper part of the lower guide block.

[0009] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: the lower cylinder controls the support head to lift the wheel hub, and the upper cylinder controls the grease injection head to clamp and fix the wheel hub to achieve the positioning of the wheel hub. Finally, the side cylinder controls the drive wheel to move and push against the rim of the wheel hub. The servo motor drives the drive wheel through the belt, which in turn drives the wheel hub to rotate, and the grease injection head can inject grease into the rollers of the wheel hub bearing. Only the stroke of the side cylinder and the speed of the servo motor need to be adjusted to achieve uniform rotation of different styles of wheel hubs. It can adapt to the grease injection needs of wheel hub bearings of different styles and sizes, and has the characteristics of high work efficiency and low labor intensity. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 yes Figure 1 A schematic diagram of the structure with the frame removed.

[0012] Figure 3 yes Figure 2 The K-direction view in the image.

[0013] Figure 4 yes Figure 3 The left view.

[0014] Figure 5 yes Figure 2 A diagram showing a wheel hub.

[0015] In the diagram: 1. Frame; 11. Positioning plate; 12. Upper cylinder mounting base; 13. Lower cylinder mounting base; 14. Through hole; 2. Upper cylinder; 21. Grease injection head; 22. Upper guide block; 23. Upper guide rod; 3. Lower cylinder; 31. Support head; 32. Lower guide block; 33. Lower guide rod; 4. Support plate; 41. Slide rail; 42. Side cylinder mounting base; 5. Translation plate; 51. Motor mounting base; 52. Servo motor; 53. Belt; 54. Drive wheel; 55. Guide wheel; 56. Side cylinder connector; 6. Side cylinder; 7. Hub. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and examples: like Figures 1 to 5The wheel hub bearing grease injection rotary device shown includes a frame 1 with an upper cylinder 2, a lower cylinder 3, and a positioning plate 11. The grease injection head 21 has an internal oil passage and is connected to an external automatic grease injection device (it should be noted that how the grease injection head 21 has an internal oil passage and how it is connected to an external automatic grease injection device, and how the grease injection head 21 injects grease into the wheel hub 7 bearing, are all existing mature technologies and will not be described in detail here). The positioning plate 11 is located in the middle of the frame 1. The upper cylinder mounting seat 12 and the lower cylinder mounting seat 13 are respectively installed on the upper and lower parts of the frame 1 by bolt assemblies. Guide holes are opened at both ends of the upper cylinder mounting seat 12 and the lower cylinder mounting seat 13. The cylinder body of the upper cylinder 2 is connected to the middle part of the upper cylinder mounting seat 12 by bolt assemblies, and the piston rod of the upper cylinder 2 is connected to the lower part of the upper guide block 22 by bolt assemblies. Next, upper guide rods 23 are respectively installed at both ends of the upper guide block 22 by bolt assemblies. The upper guide rods 23 can slide through the guide holes of the upper cylinder mounting seat 12. The grease injection head 21 is installed at the lower part of the upper guide block 22 by bolt assemblies. The cylinder body of the lower cylinder 3 is connected to the middle part of the lower cylinder mounting seat 13 by bolt assemblies. The piston rod of the lower cylinder 3 is connected to the lower part of the lower guide block 32 by bolt assemblies. Lower guide rods 33 are installed at both ends of the lower guide block 32 by bolt assemblies. The lower guide rods 33 can slide through the guide holes of the lower cylinder mounting seat 13. The support head 31 is installed at the upper part of the lower guide block 32 by bolt assemblies. Tapered needle roller bearings are installed at the ends of the grease injection head 21 and the support head 31. The positioning plate 11 has a through hole 14, through which the support head 31 can pass. A support plate 4 is bolted to one end of the positioning plate 11. A slide rail 41 and a side cylinder mounting seat 42 are bolted to the support plate 4. The cylinder body of the side cylinder 6 is connected to the side cylinder mounting seat 42 via a bolt assembly. A slider adapted to the slide rail 41 is bolted to the bottom of the translation plate 5. A side cylinder connector 56 is bolted to the motor mounting seat 51. The side cylinder connector 56 is bolted to the piston rod of the side cylinder 6. The translation plate 5 is bolted to the motor mounting seat 51, three rotatable guide wheels 55, and two rotatable drive wheels 54. A servo motor 52 is mounted on the motor mounting seat 51. The output shaft of the servo motor 52 is connected to the two drive wheels 54 via a belt 53 and the three guide wheels 55. In this example, the upper cylinder 2, lower cylinder 3, side cylinder 6, servo motor 52, and external automatic grease injection equipment are controlled by a PLC controller. The PLC controller is a common device in existing technology, and conventional settings are sufficient. No improvements are involved in the control methods or software. As for the parameter settings and usage of the PLC controller, those skilled in the art can purchase the PLC controller and refer to the accompanying instruction manual to set up the corresponding control. Therefore, no detailed explanation is provided here.

[0017] In use, the hub 7 is placed on the positioning plate 11, and the bearing at the center of the hub 7 is aligned with the through hole 14. The lower cylinder 3 controls the support head 31 to rise and lift the hub 7 at the bearing. The upper cylinder 2 controls the grease injection head 21 to descend and press against the bearing of the hub 7. The support head 31 and the grease injection head 21 clamp the bearing of the hub 7. The side cylinder 6 controls the translation plate 5 to move towards the hub 7, so that the two drive wheels 54 are pressed against the rim of the hub 7. The servo motor 52 drives the two drive wheels 54 to rotate through the belt 53, causing the hub 7 to rotate at a constant speed. The grease injection head 21 begins to inject grease into the rollers of the bearing of the hub 7.

Claims

1. A grease-injecting rotary device for wheel hub bearings, comprising a frame equipped with an upper cylinder, the upper cylinder being connected to a grease injection head, characterized in that: The frame is also equipped with a lower cylinder and a positioning plate. The lower cylinder is connected to the support head. The positioning plate has a through hole through which the support head can pass. One end of the positioning plate is equipped with a support plate. One end of the support plate is equipped with a side cylinder. A slidable translation plate is provided on the support plate. The side cylinder is connected to the translation plate. The translation plate is equipped with a servo motor and multiple drive wheels. The servo motor is connected to the multiple drive wheels.

2. The wheel hub bearing grease injection rotating device according to claim 1, characterized in that: Both the grease injection head and the support head are equipped with tapered needle roller bearings at their ends.

3. The wheel hub bearing grease injection rotating device according to claim 2, characterized in that: The support plate is provided with a slide rail and a side cylinder mounting seat. The cylinder body of the side cylinder is connected to the side cylinder mounting seat. The bottom of the translation plate is provided with a slider that matches the slide rail. The motor mounting seat is provided with a side cylinder connector, which is connected to the piston rod of the side cylinder.

4. The wheel hub bearing grease injection rotating device according to claim 3, characterized in that: The translation plate is provided with a motor mounting base, three guide wheels and two drive wheels. The servo motor is mounted on the motor mounting base, and the output shaft of the servo motor is connected to the two drive wheels through a belt and the three guide wheels.

5. The wheel hub bearing grease injection rotating device according to claim 1 or 4, characterized in that: The positioning plate is located in the middle of the frame. The upper and lower parts of the frame are respectively provided with an upper cylinder mounting seat and a lower cylinder mounting seat. Guide holes are opened at both ends of the upper cylinder mounting seat and the lower cylinder mounting seat. The cylinder body of the upper cylinder is connected to the middle of the upper cylinder mounting seat. The piston rod of the upper cylinder is connected to the lower part of the upper guide block. Upper guide rods are provided at both ends of the upper guide block. The upper guide rods can be slidably installed in the guide holes of the upper cylinder mounting seat. The grease injection head is installed in the lower part of the upper guide block. The cylinder body of the lower cylinder is connected to the middle of the lower cylinder mounting seat. The piston rod of the lower cylinder is connected to the lower part of the lower guide block. Lower guide rods are provided at both ends of the lower guide block. The lower guide rods can be slidably installed in the guide holes of the lower cylinder mounting seat. The support head is installed in the upper part of the lower guide block.

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