A high-precision self-lubricating bearing sleeve

Abstract

This utility model discloses a high-precision self-lubricating bearing sleeve, relating to the field of bearing technology. The high-precision self-lubricating bearing sleeve includes an outer bearing ring and an inner bearing ring. An oil inlet hole is provided at the top of the outer bearing ring, and an oil injection mechanism is provided at the top of the outer bearing ring above the oil inlet hole. The oil injection mechanism includes two sliding rods symmetrically arranged at the top of the outer bearing ring. A slider is slidably mounted on the outside of each sliding rod, and an oil reservoir is positioned between the two sliders. The oil injection mechanism of this utility model is conveniently designed. Through the cooperation of the sliding rods, sliders, and a first spring, pressing the oil reservoir aligns the oil filling cap with the oil inlet hole. The positioning pin opens the steel ball to add lubricating oil. After releasing, the steel ball automatically resets and seals. Oil replenishment can be completed without complicated operations. Furthermore, the detachable design of the top cap and threaded cylinder facilitates oil replenishment and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically a high-precision self-lubricating bearing sleeve. Background Technology

[0002] Bearings are an important basic component in the machinery industry. Their core function is to reduce the coefficient of friction during the rotation or movement of machinery and to bear the load on the shaft, thereby ensuring the smooth operation of mechanical parts and extending the service life of equipment. They are widely used in almost all fields involving rotational motion, such as automobiles, machine tools, motors, rail transportation, and aerospace.

[0003] The existing bearing sleeve oil filling structure is cumbersome and lacks a convenient oil filling mechanism. When adding oil, tools are needed to disassemble the parts, which is complicated to operate and difficult to guarantee the sealing. It is easy to cause oil leakage or impurities to enter, making maintenance inconvenient.

[0004] Based on this, a high-precision self-lubricating bearing sleeve is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision self-lubricating bearing sleeve to solve the problem of cumbersome oil injection structure design in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-precision self-lubricating bearing sleeve includes an outer bearing ring and an inner bearing ring, wherein an oil inlet hole is provided at the top of the outer bearing ring;

[0008] An oil injection mechanism is provided at the top of the outer ring of the bearing and above the oil inlet hole. The oil injection mechanism includes two slide rods, which are symmetrically arranged at the top of the outer ring of the bearing. A slider is slidably installed on the outside of each slide rod, and an oil can is provided between the two sliders.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: a limiting plate is provided at the top of each of the two slide rods, and a first spring is sleeved on the outside of each of the two slide rods and between the slider and the outer ring of the bearing.

[0011] In one alternative: the top of the oil container has a first threaded groove, and the top of the oil container is threadedly connected to a top cover through the first threaded groove.

[0012] In one alternative: the bottom of the oil container is provided with a second threaded groove, and a threaded cylinder is threadedly connected inside the second threaded groove. The bottom of the threaded cylinder is provided with an oil filling cap, and the external dimensions of the oil filling cap are adapted to the internal dimensions of the oil inlet hole.

[0013] In one alternative: a second spring is provided inside the oil filling cap, a steel ball is provided at the bottom end of the second spring, and a bottom cover is provided at the bottom end of the oil filling cap, with the steel ball and the bottom cover being compatible.

[0014] In one alternative: a fixing member is provided inside the oil inlet hole, and a positioning post is provided at the top center point of the fixing member, with the positioning post located directly below the steel ball.

[0015] In one alternative: the bearing inner ring is located inside the bearing outer ring, the inner wall of the bearing inner ring has a first mounting groove, the outer wall of the bearing inner ring has a second mounting groove, and a plurality of balls and graphite pillars are arranged between the first mounting groove and the second mounting groove.

[0016] In one alternative: a sealing cap is provided between the two sides of the bearing outer ring and the bearing inner ring.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. The oil filling mechanism of this utility model is conveniently designed. By cooperating with the slide bar, the slider and the first spring, pressing the oil can will make the oil filling cap connect with the oil inlet hole. The positioning column opens the steel ball to realize the filling of lubricating oil. After releasing, the steel ball automatically resets and seals. Oil replenishment can be completed without complicated operation. In addition, the detachable design of the top cover and the threaded cylinder makes it convenient for oil replenishment and maintenance of the oil can.

[0019] 2. In this utility model, the balls and graphite columns of the inner ring of the bearing are distributed at intervals. The graphite columns can continuously provide lubrication during the operation of the bearing, reducing the frequency of manual addition of lubricant, reducing labor intensity, and ensuring timely and long-lasting lubrication. The sealing cover effectively prevents dust from entering the bearing, reducing component wear and extending service life.

[0020] 3. The overall structure of this utility model takes into account convenient oiling, long-term self-lubrication and protection functions, which significantly improves the ease of use and durability of the bearing sleeve and is suitable for high-precision operation requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the oil injection mechanism of this utility model.

[0023] Figure 3This is a schematic diagram of the top cover installation structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the graphite column installation structure of this utility model.

[0025] Figure reference numerals: 1. Bearing outer ring; 2. Bearing inner ring; 3. First mounting groove; 4. Second mounting groove; 5. Ball bearing; 6. Graphite column; 7. Sealing cap; 8. Oil inlet; 9. Oil filling mechanism; 91. Sliding rod; 92. Sliding block; 93. Oil can; 94. Limiting plate; 95. First threaded groove; 96. Top cover; 97. First spring; 98. Second threaded groove; 99. Threaded cylinder; 910. Oil filling cap; 911. Second spring; 912. Steel ball; 913. Bottom cover; 10. Fixing component; 11. Positioning pin. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, such as Figures 1-4 As shown, a high-precision self-lubricating bearing sleeve includes an outer bearing ring 1 and an inner bearing ring 2, wherein an oil inlet hole 8 is provided on the top of the outer bearing ring 1.

[0028] An oil injection mechanism 9 is provided at the top of the outer ring 1 of the bearing and above the oil inlet hole 8. The oil injection mechanism 9 includes two slide rods 91, which are symmetrically arranged at the top of the outer ring 1 of the bearing. A slider 92 is slidably installed on the outside of each of the two slide rods 91, and an oil can 93 is provided between the two sliders 92.

[0029] In this embodiment, the internal lubricating oil of the bearing is insufficient after long-term use and needs to be added in time. The lubrication mechanism 9 can quickly add lubricating oil, and there is a graphite column 6 between every two balls 5. The bearing has sufficient lubrication during operation and can maintain a long-term lubrication effect without adding lubricant. This reduces the labor intensity of users to add lubricant and ensures the timeliness of bearing lubrication.

[0030] In one embodiment, such as Figure 2 , Figure 3 and Figure 4As shown, each of the two slide rods 91 has a limit plate 94 at its top. A first spring 97 is fitted around each of the two slide rods 91, located between the slider 92 and the outer ring 1 of the bearing. A first threaded groove 95 is formed on the top of the oil reservoir 93, and a top cover 96 is threadedly connected to the top of the oil reservoir 93 via the first threaded groove 95. A second threaded groove 98 is formed at the bottom of the oil reservoir 93, and a threaded cylinder 99 is threadedly connected inside the second threaded groove 98. An oil filling cap 910 is provided at the bottom of the threaded cylinder 99. The external dimensions of the oil filling cap 910 are adapted to the internal dimensions of the oil inlet hole 8. A second spring 911 is provided inside the oil filling cap 910, and a steel ball 912 is provided at the bottom of the second spring 911. A bottom cover 913 is provided at the bottom of the oil filling cap 910, and the steel ball 912 and the bottom cover 913 are adapted to each other. A fixing member 10 is provided inside the oil inlet hole 8, and a positioning post 1 is provided at the center point of the top of the fixing member 10. 1. The positioning post 11 is located directly below the steel ball 912. When lubricating oil needs to be added, press the oil can 93 downward. The oil can 93 drives the slider 92 and the oil filling cap 910 to move downward. The first spring 97 is compressed, and the steel ball 912 contacts the positioning post 11, causing the steel ball 912 to move into the oil filling cap 910. The second spring 911 is compressed, and the blockage of the bottom cover 913 by the steel ball 912 is released. The lubricating oil enters the oil inlet hole 8 through the bottom cover 913 and finally enters between the outer ring 1 and the inner ring 2 of the bearing. After adding, slowly loosen the oil can 93. Due to the reset action of the first spring 97, the slider 92 moves upward. The slider 92 drives the oil can 93 to move upward. During the upward movement of the oil can 93, the second spring 911 resets, causing the steel ball 912 to reset, so that the steel ball 912 blocks the bottom cover 913, which facilitates the addition of lubricating oil. When the lubricating oil inside the oil can 93 is insufficient, the top cover 96 is rotated and removed to facilitate the addition of lubricating oil to the inside of the oil can 93.

[0031] In one embodiment, such as Figure 1 and Figure 4 As shown, the inner ring 2 of the bearing is located inside the outer ring 1 of the bearing. The inner wall of the inner ring 2 is provided with a first mounting groove 3, and the outer wall of the inner ring 2 is provided with a second mounting groove 4. A plurality of balls 5 and graphite pillars 6 are arranged between the first mounting groove 3 and the second mounting groove 4. A sealing cover 7 is provided between the two sides of the outer ring 1 and the inner ring 2 of the bearing. There is a graphite pillar 6 between every two balls 5. The bearing has sufficient lubrication during operation and can maintain a long-term lubrication effect without adding lubricant, which reduces the labor intensity of users to add lubricant and ensures the timeliness of bearing lubrication. The sealing cover 7 effectively prevents dust from entering the bearing and extends the service life of the bearing.

[0032] The above embodiment discloses a high-precision self-lubricating bearing sleeve. When the bearing experiences insufficient internal lubricating oil after prolonged use, timely replenishment is necessary. Lubricating oil can be quickly added via the oil filling mechanism 9. When lubricating oil needs to be added, the oil can 93 is pressed downwards. The oil can 93 moves the slider 92 and the oil filling cap 910 downwards, compressing the first spring 97. The steel ball 912 contacts the positioning post 11, causing it to move inwards towards the oil filling cap 910. The second spring 911 is compressed, releasing the blockage of the steel ball 912 on the bottom cover 913. Lubricating oil then enters the oil inlet hole 8 through the bottom cover 913, finally flowing between the outer ring 1 and the inner ring 2 of the bearing. After adding oil, the oil can be slowly loosened. The oil reservoir 93, due to the resetting action of the first spring 97, causes the slider 92 to move upward, which in turn moves the oil reservoir 93 upward. During the upward movement of the oil reservoir 93, the second spring 911 resets, causing the steel ball 912 to reset as well. This allows the steel ball 912 to block the bottom cover 913, facilitating the addition of lubricating oil. When the lubricating oil inside the oil reservoir 93 is insufficient, the top cover 96 can be rotated and removed to easily add lubricating oil to the inside of the oil reservoir 93. Furthermore, there is a graphite column 6 between every two balls 5, ensuring sufficient lubrication for the bearing during operation. This eliminates the need for additional lubricant, maintaining a long-term lubrication effect and reducing the labor intensity of adding lubricant for the user, thus ensuring timely lubrication of the bearing.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A high-precision self-lubricating bearing sleeve, comprising an outer bearing ring (1) and an inner bearing ring (2), wherein an oil inlet hole (8) is provided at the top of the outer bearing ring (1); Its features are, An oil injection mechanism (9) is provided at the top of the outer ring (1) of the bearing and above the oil inlet (8). The oil injection mechanism (9) includes two slide rods (91), which are symmetrically arranged at the top of the outer ring (1) of the bearing. A slider (92) is slidably installed on the outside of each of the two slide rods (91), and an oil can (93) is provided between the two sliders (92).

2. The high-precision self-lubricating bearing sleeve according to claim 1, characterized in that, Limiting plates (94) are provided at the top of both slide rods (91), and a first spring (97) is sleeved on the outside of both slide rods (91) and between the slider (92) and the outer ring (1) of the bearing.

3. The high-precision self-lubricating bearing sleeve according to claim 1, characterized in that, The top of the oil can (93) is provided with a first threaded groove (95), and the top of the oil can (93) is threadedly connected to a top cover (96) through the first threaded groove (95).

4. A high-precision self-lubricating bearing sleeve according to claim 1, characterized in that, The bottom end of the oil can (93) is provided with a second threaded groove (98), and the inner thread of the second threaded groove (98) is connected to a threaded cylinder (99). The bottom end of the threaded cylinder (99) is provided with an oil filling cap (910), and the outer dimensions of the oil filling cap (910) are adapted to the inner dimensions of the oil inlet hole (8).

5. A high-precision self-lubricating bearing sleeve according to claim 4, characterized in that, The oil filling cap (910) is provided with a second spring (911) inside, and a steel ball (912) is provided at the bottom end of the second spring (911). The bottom end of the oil filling cap (910) is provided with a bottom cover (913), and the steel ball (912) and the bottom cover (913) are compatible with each other.

6. A high-precision self-lubricating bearing sleeve according to claim 5, characterized in that, The oil inlet (8) is provided with a fixing member (10), and a positioning post (11) is provided at the top center point of the fixing member (10), and the positioning post (11) is located directly below the steel ball (912).

7. A high-precision self-lubricating bearing sleeve according to claim 1, characterized in that, The bearing inner ring (2) is located inside the bearing outer ring (1). The inner wall of the bearing inner ring (2) is provided with a first mounting groove (3), and the outer wall of the bearing inner ring (2) is provided with a second mounting groove (4). A plurality of balls (5) and graphite columns (6) are arranged between the first mounting groove (3) and the second mounting groove (4).

8. A high-precision self-lubricating bearing sleeve according to claim 1, characterized in that, A sealing cap (7) is provided between the two sides of the outer ring (1) and the inner ring (2) of the bearing.

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