Device suitable for automatically filling lubricating grease into multiple types of bearings
By using the adaptive clamping of rotary bearings and the gear set driven by a motor, the problems of fixing different types of bearings and uneven grease injection are solved, and efficient and uniform grease injection for multiple types of bearings is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHANXIN AUTOMOTIVE TECH DEV CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-17
AI Technical Summary
In the existing technology, it is difficult for the clamp to fix different types of bearings in a targeted manner, and it is difficult to uniformly inject grease into different types of bearings when the grease injection head is fixed.
The bearing is self-adaptive clamping is achieved by using a rotating shaft, abutment block and control components, and a gear set driven by a motor. Combined with a laterally movable placement platform and a longitudinally adjustable grease injector, the bearing is centered and fixed and the grease is injected evenly.
It achieves compatibility with different bearing models and improves grease injection accuracy, avoids uneven grease distribution, improves grease injection efficiency, and reduces grease waste.
Smart Images

Figure CN224135649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing processing technology, specifically to a device for automatically adding grease to various types of bearings. Background Technology
[0002] The automotive bearing grease applicator is used for quantitative grease application to automotive bearings, wheel hub cavities, and wheel hubs, as well as for adding grease to automotive bearings in auto repair shops. It is controlled by an intelligent controller with a fully digital display, convenient adjustment, accurate grease application, and a pressure protection device. Users can easily set the grease injection amount from 10 grams to 10 kilograms on the panel. It is suitable for quantitative grease application to automotive bearings (tapered roller bearings), wheel hub cavities, and wheel hubs, as well as for adding grease to automotive bearings in auto repair shops.
[0003] Chinese patent CN222085736U discloses a bearing grease injection device. When grease injection, the bearing is first placed on a worktable. Then, a rotating rod is rotated, causing a clamp on a hinged rod to fix the bearing. Next, a worm gear is rotated, causing a turbine to rotate. During this rotation, a connecting rod is displaced, which in turn displaces a piston on a piston rod. This piston then moves grease towards the grease injection head, thus injecting grease into the bearing. (The grease injection head is equipped with a valve; when the valve is open, the piston injects grease into the bearing; when the valve is closed, the grease in the injection tube does not easily flow out of the grease injection head.) This simple structure allows the device to fix bearings of different sizes without requiring manual grease injection.
[0004] Although the above solution can use the clamp plate on the adapter rod to fix the bearing and use the piston to squeeze the grease to complete the grease injection, it is difficult to fix and inject grease for different bearing sizes when the clamp plate fixes the bearing. In particular, when the grease injection head is in a fixed state, it is difficult to inject grease evenly for different bearing sizes.
[0005] Therefore, this utility model provides a device for automatically adding grease to various types of bearings to solve the above problems. Utility Model Content
[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a device for automatically adding grease to bearings of multiple models, so as to solve the problem that when the clamp is used to fix the bearing, it is difficult to fix and add grease to bearings of different models in a targeted manner, especially when the grease injection head is in a fixed state, it is difficult to evenly inject grease into bearings of different models.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A device for automatically adding grease to bearings of various models includes a base, a placement platform, and a second slider. The placement platform is located above the base, and two sets of rotating shafts are rotatably connected to the placement platform. Each rotating shaft is fixedly connected to a fixing rod, and a control component for synchronously controlling the two sets of rotating shafts is provided on the placement platform.
[0009] The base is provided with a first moving component for laterally moving the bearing via a placement platform.
[0010] The second slider is located above the base, and a grease injector is mounted on the second slider.
[0011] The base is provided with a second moving component for longitudinally moving the second slider, and the second slider drives the grease injector to move and inject grease into the bearing.
[0012] Preferably, the control component includes a first motor mounted on the placement platform, a first gear mounted on the output shaft of the first motor, a transmission shaft rotatably connected inside the placement platform, and a second gear fixedly connected to the transmission shaft, the second gear meshing with the first gear.
[0013] Preferably, a third gear is fixedly connected to each of the two sets of rotating shafts, and the two sets of third gears mesh with the first gear and the second gear, respectively.
[0014] Preferably, the end of the fixing rod away from the rotation axis is fixedly connected to an abutment block.
[0015] Preferably, the first moving component includes a first adjusting box fixedly connected to the base, a second motor mounted on the first adjusting box, a first screw mounted on the output shaft of the second motor, a first slider threadedly connected to the first screw, and the first slider slidably connected inside the first adjusting box, with the top end of the first slider fixedly connected to the placement platform.
[0016] Preferably, the bottom surface of the placement platform is fixedly connected with two sets of support wheels, and the bottom end of each support wheel abuts against the base.
[0017] Preferably, the second moving component includes a second adjusting box, a support column is fixedly connected to the bottom end of the second adjusting box, and the bottom end of the support column is fixedly connected to the base. A third motor is installed on the second adjusting box, and a second screw is installed on the output shaft of the third motor. One end of the second slider is threadedly connected to the second screw.
[0018] The beneficial effects of this utility model are as follows:
[0019] 1. Through the coordinated arrangement of the rotating shaft, abutment blocks, and control components, bearings with different inner diameters can be adaptively clamped. The first motor drives a bidirectional rotating gear set, causing the two sets of abutment blocks to expand or contract synchronously, ensuring that the bearing is centered, fixed, and subjected to uniform force. Combined with a laterally movable placement platform and a longitudinally adjustable grease injector, the grease injection head can dynamically align with the grease injection position of the bearing, avoiding the problem of uneven grease distribution caused by traditional fixed grease injection, and significantly improving the compatibility and grease injection accuracy of different bearing models.
[0020] 2. The second motor drives the placement platform to move laterally, and the third motor drives the grease injector to adjust longitudinally. The two work together to ensure that the grease injector moves precisely along the circumference of the bearing, ensuring that the grease is evenly filled into the bearing cavity. The grease injector is connected to an external oil pump and supports quantitative pressurized grease injection without manual intervention, which improves the grease injection efficiency and avoids grease waste or contamination. Attached Figure Description
[0021] Figure 1 The three-dimensional representation of this utility model Figure 1 .
[0022] Figure 2 The three-dimensional representation of this utility model Figure 2 .
[0023] Figure 3 This is a schematic diagram of the control component in this utility model.
[0024] Figure 4 This is a cross-sectional view of the present invention.
[0025] In the diagram: 1. Base; 2. Placement platform; 3. First motor; 4. First gear; 5. Drive shaft; 6. Second gear; 7. Rotating shaft; 8. Third gear; 9. Fixed rod; 10. Abutment block; 11. Support wheel; 12. First adjustment box; 13. Second motor; 14. First screw; 15. First slider; 16. Second adjustment box; 17. Support column; 18. Third motor; 19. Second screw; 20. Second slider; 21. Grease injector. Detailed Implementation
[0026] The following will refer to the attached reference. Figures 1 to 4 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.
[0027] A device for automatically adding grease to bearings of various models includes a base 1, a placement platform 2, a first moving component, a second slider 20, and a second moving component.
[0028] The placement platform 2 is located above the base 1. Two sets of rotating shafts 7 are rotatably connected to the placement platform 2. Each rotating shaft 7 is fixedly connected to a fixing rod 9. A stop block 10 is fixedly connected to the end of the fixing rod 9 away from the rotating shaft 7. The placement platform 2 is equipped with a control component for synchronously controlling the two sets of rotating shafts 7.
[0029] When fixing the bearing, the bearing needs to be placed on the placement platform 2, and each rotating shaft 7 is located inside the bearing. The bearing is fixed by abutting the abutting block 10 on the rotating shaft 7 against the inner wall of the bearing.
[0030] In this embodiment, the control component includes a first motor 3 mounted on the placement platform 2, a first gear 4 mounted on the output shaft of the first motor 3, a transmission shaft 5 rotatably connected inside the placement platform 2, a second gear 6 fixedly connected on the transmission shaft 5, and the second gear 6 meshing with the first gear 4.
[0031] The first gear 4 is driven to rotate by the output shaft of the first motor 3, and the transmission shaft 5 is rotated within the placement platform 2 under the action of the second gear 6, with the rotation direction of the first gear 4 being opposite to that of the second gear 6.
[0032] Each of the two sets of rotating shafts 7 is fixedly connected with a third gear 8. The two sets of third gears 8 mesh with the first gear 4 and the second gear 6 respectively. By using the meshing transmission between the third gear 8 and the first gear 4 and the second gear 6, the rotation directions of the two sets of rotating shafts 7 are opposite, thus completing the outward expansion movement and the inward contraction movement of the two sets of rotating shafts 7.
[0033] In this embodiment, the first moving component is disposed on the base 1 and is used to move the bearing laterally via the placement platform 2. The first moving component includes a first adjusting box 12 fixedly connected to the base 1, a second motor 13 is mounted on the first adjusting box 12, a first screw 14 is mounted on the output shaft of the second motor 13, a first slider 15 is threadedly connected to the first screw 14, and the first slider 15 is slidably connected inside the first adjusting box 12. The top end of the first slider 15 is fixedly connected to the placement platform 2.
[0034] The output shaft of the second motor 13 drives the first screw 14 to rotate, and the first slider 15 moves within the first adjustment box 12, thereby moving the placement platform 2, which in turn moves the bearing fixed on the placement platform 2.
[0035] Two sets of support wheels 11 are fixedly connected to the bottom surface of the placement platform 2. The bottom end of each support wheel 11 abuts against the base 1. When the placement platform 2 moves, the support wheels 11 will roll on the base 1, which will improve the stability of the movement of the placement platform 2.
[0036] The second slider 20 is located above the base 1. A grease injector 21 is installed on the second slider 20. The grease injector 21 is an existing structure that is connected to an external oil pump. It can pressurize a certain amount of grease and discharge it into the interior of the bearing to complete the grease injection operation.
[0037] In this embodiment, the second moving component is disposed on the base 1 and is used to move the second slider 20 longitudinally and drive the grease injector 21 to inject grease into the bearing through the movement of the second slider 20. The second moving component includes a second adjusting box 16, and a support column 17 is fixedly connected to the bottom end of the second adjusting box 16. The bottom end of the support column 17 is fixedly connected to the base 1. A third motor 18 is installed on the second adjusting box 16. A second screw 19 is installed on the output shaft of the third motor 18. One end of the second slider 20 is threadedly connected to the second screw 19.
[0038] The output shaft of the third motor 18 drives the second screw 19 to rotate, and the second slider 20 drives the grease injector 21 to move longitudinally. In conjunction with the first slider 15 driving the placement platform 2 to move laterally, the grease injector 21 can perform complete circular grease injection on the bearing, ensuring the quality of grease injection on the bearing.
[0039] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0040] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A device for automatic greasing of bearings suitable for various types of bearings, characterized in that, It includes a base (1), a placement platform (2), and a second slider (20). The placement platform (2) is located above the base (1). Two sets of rotating shafts (7) are rotatably connected to the placement platform (2). A fixing rod (9) is fixedly connected to each of the rotating shafts (7). A control component for synchronously controlling the two sets of rotating shafts (7) is provided on the placement platform (2). The base (1) is provided with a first moving component for laterally moving the bearing by means of the placement platform (2); The second slider (20) is located above the base (1), and a grease injector (21) is installed on the second slider (20); The base (1) is provided with a second moving component for longitudinally moving the second slider (20), and the second slider (20) drives the grease injector (21) to move to inject grease into the bearing.
2. A device for automatic lubricating grease injection for various types of bearings according to claim 1, characterized in that, The control component includes a first motor (3) mounted on the placement platform (2), the output shaft of the first motor (3) is equipped with a first gear (4), a transmission shaft (5) is rotatably connected inside the placement platform (2), a second gear (6) is fixedly connected to the transmission shaft (5), and the second gear (6) meshes with the first gear (4).
3. A device for automatic lubricating grease injection for various types of bearings according to claim 2, characterized in that, Both sets of rotating shafts (7) are fixedly connected with third gears (8), and the two sets of third gears (8) mesh with the first gear (4) and the second gear (6) respectively.
4. A device for automatic lubricating grease injection for various types of bearings according to claim 1, characterized in that, The end of the fixed rod (9) away from the rotation axis (7) is fixedly connected to an abutment block (10).
5. A device for automatic lubricating grease injection for various types of bearings according to claim 1, characterized in that, The first moving component includes a first adjusting box (12) fixedly connected to the base (1), a second motor (13) is installed on the first adjusting box (12), a first screw (14) is installed on the output shaft of the second motor (13), a first slider (15) is threadedly connected to the first screw (14), and the first slider (15) is slidably connected inside the first adjusting box (12), and the top end of the first slider (15) is fixedly connected to the placement platform (2).
6. A device for automatic lubricating grease injection for various types of bearings according to claim 1, characterized in that, The bottom surface of the placement platform (2) is fixedly connected with two sets of support wheels (11), and the bottom end of each support wheel (11) abuts against the base (1).
7. A device for automatic lubricating grease injection for various types of bearings according to claim 1, characterized in that, The second moving component includes a second adjusting box (16), a support column (17) is fixedly connected to the bottom end of the second adjusting box (16), and the bottom end of the support column (17) is fixedly connected to the base (1). A third motor (18) is installed on the second adjusting box (16), and a second screw (19) is installed on the output shaft of the third motor (18). One end of the second slider (20) is threadedly connected to the second screw (19).
Citation Information
Patent Citations
Bearing grease injection device
CN222085736U