A uniform oiling device for high-precision bearing assembly
By designing the limit seat and clamping plate assembly, combined with motor drive and sponge block filtration, the problems of spray accumulation and localized oil shortage in the bearing oiling device are solved, achieving a uniform oiling effect for high-precision bearings and improving oiling efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIUYAN BEARING TECH (ANHUI) CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-26
AI Technical Summary
Existing bearing oiling devices are prone to spray buildup or localized oil shortages when using a spray method, resulting in large deviations in oil film thickness, which cannot meet the oiling requirements of high-precision bearings.
The system employs a limit seat and clamping plate assembly. A second motor drives the positioning threaded rod to rotate, which in turn pushes the moving bar to move synchronously. Combined with the gradient density filtration of the sponge block, this ensures that the lubricating oil seeps out evenly, preventing the bearing from tilting or vibrating during the oiling process.
It achieves uniformity and stability in bearing oil application, avoids raceway indentation problems caused by traditional grippers, ensures high-precision grease distribution, and improves oiling efficiency and quality.
Smart Images

Figure CN224405539U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing processing technology, and in particular relates to a uniform oiling device for high-precision bearing assembly. Background Technology
[0002] Bearings are components that fix and reduce the coefficient of friction of loads during mechanical transmission. When other machine parts move relative to each other on the shaft, they are used to reduce the coefficient of friction during power transmission and keep the shaft center position fixed. The main function of bearings is to support rotating mechanical bodies in order to reduce the coefficient of friction of mechanical loads during transmission.
[0003] A search revealed that patent CN216094362U discloses a bearing oiling machine and oiling device. This patent uses a combination of a spraying device, a rotating device, a moving device, and a clamping device to place the bearing to be oiled on a rotating table. Turning the handle allows the bearing to be clamped by the clamping plate. Turning the motor causes the rotating table to rotate, and simultaneously, the booster pump is activated. Under the action of the booster pump, the anti-rust oil inside the housing is sprayed out from the nozzle. In this way, with the help of the rotating table, the bearing can be coated all around its circumference.
[0004] The aforementioned patents effectively improve the oiling efficiency of bearings. However, the spraying method is affected by the viscosity of the grease, which can easily lead to spray accumulation or localized oil shortage, resulting in a large deviation in oil film thickness, which cannot meet the requirements of high-precision bearings. Therefore, we provide a uniform oiling device for high-precision bearing assembly to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a uniform oiling device for high-precision bearing assembly. The device uses a second motor to drive the positioning threaded rod to rotate, which in turn pushes the bidirectional moving bar to move synchronously along the high-precision guide rod. This allows the polyurethane clamping plate to fix the bearing with constant force without damage. The clamping process eliminates workpiece skew and avoids the raceway indentation problem caused by traditional mechanical grippers. At the same time, the quenched steel structure of the limiting seat bears the grinding vibration and impact, ensuring zero displacement of the bearing during the oiling stage. This invention addresses the technical defects in the aforementioned background technology.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a uniform oiling device for high-precision bearing assembly, including a positioning plate, wherein a limiting component and an oiling component are installed on the top of the positioning plate;
[0007] The limiting component includes a limiting seat, a mounting groove is provided on one side of the limiting seat, a bearing is inserted into the mounting groove, and two clamping plates are slidably arranged on the side of the limiting seat near the mounting groove.
[0008] The oiling assembly includes two movable seats that slide in conjunction with a positioning plate. A limiting cavity is fixedly provided on the top of the movable seat, and a sponge block is installed on one side of the limiting cavity. The limiting cavity is filled with oil.
[0009] The present invention is further configured such that a movable opening is provided at the top of the positioning plate, an mounting plate is fixedly provided at the bottom of the positioning plate, and a drive gear is rotatably provided on one side of the mounting plate.
[0010] The present invention is further configured such that a first motor is mounted on the other side of the mounting plate, and the output end of the first motor is fixedly connected to the drive gear.
[0011] The present invention is further configured such that two U-shaped seats are fixedly provided on the side of the limiting seat near the mounting groove, one of the U-shaped seats has a guide rod fixedly provided on its inner side, and the other U-shaped seat has a positioning threaded rod rotatably provided on its inner side.
[0012] The present invention is further configured such that two movable bars are slidably arranged on the inner side of the limiting seat and fixedly connected to the corresponding clamping plate, the movable bars are slidably engaged with the guide rod, and the movable bars are threadedly engaged with the positioning threaded rod.
[0013] The present invention is further configured such that one end of the positioning threaded rod extends through to the outside of the corresponding U-shaped seat and is fixedly connected to a second motor.
[0014] The present invention is further configured such that a movable plate is slidably disposed on the top of the positioning plate, a movable block is fixedly disposed on the bottom of the movable plate and slidably cooperates with the movable port, and a drive rack that meshes with the drive gear is fixedly disposed on the bottom of the movable block.
[0015] The present invention is further configured such that elastic reset members are fixedly provided on both sides of the movable plate, the elastic reset members are fixedly connected to the corresponding movable seats, and limit rods are fixedly provided on both sides of the movable plate, the limit rods are slidably engaged with the corresponding movable seats.
[0016] This utility model has the following beneficial effects:
[0017] 1. This utility model uses a second motor to drive the positioning threaded rod to rotate, which pushes the bidirectional moving bar to move synchronously along the high-precision guide rod, so that the polyurethane clamping plate can fix the bearing with constant force without damage. The clamping process eliminates the workpiece skew and avoids the problem of raceway indentation caused by traditional mechanical grippers. At the same time, the quenched steel structure of the limit seat bears the grinding vibration and impact, ensuring zero displacement of the bearing during the oiling stage, laying the foundation for high-precision coating.
[0018] 2. This utility model controls the sponge block to fit the bearing raceway, and the gradient density sponge is filtered through three stages to ensure that the grease seeps out evenly, realizing the process of applying oil while the sponge block moves, thus improving the uniformity of the distribution of high viscosity grease. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a uniform oiling device for high-precision bearing assembly.
[0021] Figure 2 for Figure 1 Another structural diagram from a different angle.
[0022] Figure 3 for Figure 2 The front view of the structure.
[0023] Figure 4 for Figure 2 The structural bottom view.
[0024] Figure 5 This is a schematic diagram of the limiting component in this utility model.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1-Positioning plate, 2-Limiting assembly, 201-Limiting seat, 202-Mounting groove, 203-Clamping plate, 204-U-shaped seat, 205-Guide rod, 206-Positioning threaded rod, 207-Moving bar, 208-Second motor, 3-Oil coating assembly, 301-Moving seat, 302-Limiting cavity, 303-Sponge block, 304-Moving plate, 305-Drive rack, 306-Elastic reset component, 307-Limiting rod, 4-Bearing, 5-Moving port, 6-Mounting plate, 7-Drive gear, 8-First motor. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-5 This utility model is a uniform oiling device for high-precision bearing assembly, including a positioning plate 1, a limiting component 2 and an oiling component 3 installed on the top of the positioning plate 1.
[0029] Specifically, the limiting component 2 includes a limiting seat 201, which is made of hardened steel, increasing its deformation resistance and stiffness to ensure no displacement drift during clamping. A mounting groove 202 is provided on one side of the limiting seat 201. The arc contour of the mounting groove 202 precisely matches the curvature of the outer ring of the bearing, providing an initial positioning reference. The bearing 4 is inserted into the mounting groove 202. Two clamping plates 203 are slidably arranged on the side of the limiting seat 201 near the mounting groove 202. The clamping plates 203 are embedded with a polyurethane buffer layer, which is both anti-slip and avoids damaging the precision-machined surface.
[0030] Two U-shaped seats 204 are fixedly installed on the side of the limiting seat 201 near the mounting groove 202. A guide rod 205 is fixedly installed on the inner side of one U-shaped seat 204, and a positioning threaded rod 206 is rotatably installed on the inner side of the other U-shaped seat 204.
[0031] The inner side of the limiting seat 201 is provided with two moving bars 207 that are fixedly connected to the corresponding clamping plate 203. The moving bars 207 are slidably engaged with the guide rod 205, and the moving bars 207 are threadedly engaged with the positioning threaded rod 206. One end of the positioning threaded rod 206 passes through to the outside of the corresponding U-shaped seat 204 and is fixedly connected to the second motor 208. The moving bars 207 and the guide rod 205 form a high-precision slide rail system.
[0032] Furthermore, the oiling assembly 3 includes two movable seats 301, which slide in conjunction with the positioning plate 1. A limiting cavity 302 is fixedly provided on the top of the movable seat 301, and a sponge block 303 is installed on one side of the limiting cavity 302. The limiting cavity 302 is filled with oil. The limiting cavity 302 is designed with a microporous ceramic inner wall to control the lubricating oil seepage rate appropriately and prevent dripping. The sponge block 303 is designed with a multi-layer gradient density sponge to achieve three-stage filtration and filter out impurities. At the same time, it is designed with a wedge-shaped structure to adapt to the bearing raceway surface, so that the oil film thickness is uniform.
[0033] A movable plate 304 is slidably disposed on the top of the positioning plate 1, a movable block is fixedly disposed on the bottom of the movable plate 304, and a drive rack 305 is fixedly disposed on the bottom of the movable block;
[0034] Both sides of the movable plate 304 are fixedly provided with elastic reset members 306, which are fixedly connected to the corresponding movable seats 301. Both sides of the movable plate 304 are fixedly provided with limit rods 307, which are slidably engaged with the corresponding movable seats 301. Both sides of the movable plate 304 are equipped with electromagnets, and the inner side of the movable seat 301 is equipped with a permanent magnet. The electromagnets and the permanent magnets are magnetically attracted to each other.
[0035] Furthermore, the top of the positioning plate 1 has a movable opening 5, the movable block slides with the movable opening 5, the bottom of the positioning plate 1 is fixedly provided with an installation plate 6, one side of the installation plate 6 is rotatably provided with a drive gear 7, the drive rack 305 meshes with the drive gear 7, the other side of the installation plate 6 is provided with a first motor 8, the output end of the first motor 8 is fixedly connected to the drive gear 7.
[0036] The working principle of this utility model is as follows: the second motor 208 drives the positioning threaded rod 206 to rotate, and through the threaded engagement with the moving bar 207, pushes the two clamping plates 203 to slide synchronously towards each other along the guide rod 205, clamping and fixing the bearing 4 in the mounting groove 202. The electromagnet is driven, and under the magnetic attraction, the moving seat 301 slides towards the center of the bearing 4. At the same time, the limiting rod 307 constrains the movement trajectory to prevent deviation, and the elastic reset pieces 306 on both sides are compressed.
[0037] When the movable seat 301 approaches the bearing 4, the lubricating oil in the limiting cavity 302 permeates into the sponge block 303 until the sponge block 303 is tightly attached to the bearing raceway surface. Then, the first motor 8 is controlled to drive the drive gear 7 to rotate, meshing the drive rack 305 to make the movable plate 304 move horizontally along the movable port 5, thereby achieving uniform seepage of lubricating oil in relative sliding. The continuous movement of the movable plate 304 drives the two sponge blocks 303 to make a 180° symmetrical covering movement along the bearing raceway, covering the entire circumference of the outer ring. Double-sided oiling is completed in a single stroke.
[0038] When the first motor 8 reverses, the drive rack 305 pulls the moving plate 304 to reset, controls the electromagnet to de-energize, and the elastic reset piece 306 causes the sponge block 303 to disengage from the bearing, avoiding secondary contact that could lead to an excessively thick oil film.
[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A uniform oiling device for high-precision bearing assembly, comprising a positioning plate (1), characterized in that: The positioning plate (1) is equipped with a limiting component (2) and an oiling component (3) on its top. The limiting component (2) includes a limiting seat (201), a mounting groove (202) is provided on one side of the limiting seat (201), a bearing (4) is inserted into the mounting groove (202), and two clamping plates (203) are slidably arranged on the side of the limiting seat (201) near the mounting groove (202); The oiling assembly (3) includes two movable seats (301), which are slidably engaged with the positioning plate (1). A limiting cavity (302) is fixedly provided on the top of the movable seat (301), and a sponge block (303) is installed on one side of the limiting cavity (302). The limiting cavity (302) is filled with oil.
2. The uniform oiling device for high-precision bearing assembly according to claim 1, characterized in that, The positioning plate (1) has a movable opening (5) at the top, and an installation plate (6) is fixedly installed at the bottom of the positioning plate (1). A drive gear (7) is rotatably installed on one side of the installation plate (6).
3. The uniform oiling device for high-precision bearing assembly according to claim 2, characterized in that, A first motor (8) is mounted on the other side of the mounting plate (6), and the output end of the first motor (8) is fixedly connected to the drive gear (7).
4. The uniform oiling device for high-precision bearing assembly according to claim 3, characterized in that, The limiting seat (201) is fixedly provided with two U-shaped seats (204) on the side near the mounting groove (202). One of the U-shaped seats (204) is fixedly provided with a guide rod (205) on its inner side, and the other U-shaped seat (204) is rotatably provided with a positioning threaded rod (206) on its inner side.
5. The uniform oiling device for high-precision bearing assembly according to claim 4, characterized in that, The inner side of the limiting seat (201) is provided with two movable bars (207) that are fixedly connected to the corresponding clamping plate (203). The movable bars (207) are slidably engaged with the guide rod (205), and the movable bars (207) are threadedly engaged with the positioning threaded rod (206).
6. The uniform oiling device for high-precision bearing assembly according to claim 5, characterized in that, One end of the positioning threaded rod (206) extends through to the outside of the corresponding U-shaped seat (204) and is fixedly connected to the second motor (208).
7. The uniform oiling device for high-precision bearing assembly according to claim 6, characterized in that, The positioning plate (1) has a sliding plate (304) slidably disposed on the top, and a moving block that slides with the moving port (5) is fixedly disposed on the bottom of the moving plate (304), and a driving rack (305) that meshes with the driving gear (7) is fixedly disposed on the bottom of the moving block.
8. The uniform oiling device for high-precision bearing assembly according to claim 7, characterized in that, Both sides of the movable plate (304) are fixedly provided with elastic reset members (306), and the elastic reset members (306) are fixedly connected to the corresponding movable seats (301). Both sides of the movable plate (304) are fixedly provided with limit rods (307), and the limit rods (307) are slidably engaged with the corresponding movable seats (301).