Bearing used in strong vibration impact environment

Abstract

The invention relates to the technical field of bearings, in particular to a bearing used in a strong vibration impact environment, which comprises an oil injection structure, a plugging structure, and a bearing inner ring, a bearing frame and a bearing outer ring which are sequentially arranged from inside to outside, a plurality of first limiting grooves which are through inside and outside are formed in the bearing frame, and bearing balls are rotatably mounted in the first limiting grooves; second limiting grooves with outward openings are formed in the positions, corresponding to the first limiting grooves, of the outer side of the bearing inner ring, third limiting grooves with inward openings are formed in the positions, corresponding to the first limiting grooves, of the inner side of the bearing outer ring, and the inner ends and the outer ends of the bearing balls are located in the second limiting grooves and the third limiting grooves respectively. The bearing is reasonable and compact in structure and convenient to use, external dust and particles are prevented from entering the bearing in the working process by arranging the plugging structure, the problem of excessive abrasion of the bearing is reduced, the service life of the bearing is prolonged, lubricating liquid is injected by arranging the oil injection structure, the lubricating effect is guaranteed, and meanwhile impurities are prevented from entering the bearing.

Description

Technical Field

[0001] This invention relates to the field of bearing technology, and is a bearing for use in environments with strong vibration and impact. Background Technology

[0002] Bearings designed for use in environments with strong vibration and shock are devices specifically designed to withstand high loads and intense vibrations. They offer exceptional durability and stability and are typically manufactured using high-strength materials such as steel or ceramics to ensure reliability under extreme conditions. Their internal structure is optimized to reduce friction and wear, thereby extending their service life.

[0003] Utility model patent CN211474677U discloses a vibration-damping bearing for motors, comprising an inner bearing ring and an outer bearing ring. A cage is provided between the inner and outer bearing rings. A circular ring is provided on the outside of the outer bearing ring. The outer end face of the circular ring is evenly surrounded by notches. An adjusting screw is screwed onto the inner side of the circular ring, and a guide groove is provided inside the adjusting screw. Several guide posts are evenly surrounded on the outer end face of the outer bearing ring, and the guide posts are inserted into the guide grooves. Several springs are provided between the outer bearing ring and the circular ring, and the springs are sleeved on the guide posts and the adjusting screw. With this vibration-damping bearing for motors, turning the adjusting screw changes its position on the circular ring, thus changing the pressure of the springs on the outer bearing ring.

[0004] In actual use, when it is necessary to add lubricant to the bearing, the bearing's structural design makes it inconvenient to add lubricant. It is necessary to disassemble the bearing or immerse it in lubricant before adding lubricant. During the disassembly and immersion process, dust or particles from the outside may penetrate the bearing, causing excessive wear on the inner wall of the bearing during operation, which in turn affects the bearing's performance and lifespan. Summary of the Invention

[0005] This invention provides a bearing for use in environments with strong vibration and impact, overcoming the shortcomings of the prior art. It can effectively solve the problem that existing bearings require disassembly or immersion in lubricant to replenish the lubricant, which can lead to impurities entering and increasing wear.

[0006] The technical solution of the present invention is achieved through the following measures: a bearing for use in strong vibration and impact environments, comprising an oil injection structure, a sealing structure, and an inner bearing ring, a bearing carrier, and an outer bearing ring arranged sequentially from the inside to the outside. The bearing carrier is provided with a plurality of first limiting grooves that are internally and externally connected. Bearing balls are rotatably installed in the first limiting grooves. A second limiting groove with an outward opening is provided on the outer side of the inner bearing ring corresponding to each first limiting groove position. A third limiting groove with an inward opening is provided on the inner side of the outer bearing ring corresponding to each first limiting groove position. The inner end and outer end of the bearing balls are located in the second limiting groove and the third limiting groove, respectively. The sealing structure can seal the upper and lower sides of the inner bearing ring, the bearing carrier, and the outer bearing ring and has anti-vibration characteristics. An oil injection structure is provided on the sealing structure corresponding to the bearing carrier position.

[0007] The following are further optimizations and / or improvements to the above-mentioned technical solution: Preferably, the sealing structure includes a protective ring and a rubber ring. The rubber ring covers the upper and lower sides of the bearing inner ring and the bearing housing. The protective ring is installed on the upper and lower sides of the bearing outer ring. The protective ring is located outside the rubber ring and is rotatably connected to the rubber ring.

[0008] Preferably, the rubber ring is a polyurethane rubber ring, which has a low coefficient of friction and vibration resistance. The cross-section of the rubber ring is L-shaped, and the inner end of the rubber ring can seal the upper and lower ends of the bearing bracket.

[0009] Preferably, the protective ring corresponding to the bearing bracket position is provided with an injection port that runs vertically through the bearing. The rubber ring corresponding to the injection port position is provided with a lubrication groove, a lubrication hole, and a lubrication channel on the upper, middle, and lower sides, respectively. The injection port, lubrication channel, and lubrication hole are connected to each other, and a plug is provided inside the injection port.

[0010] Preferably, the upper part of the plug is circular, the middle part of the plug is cylindrical and can seal the injection port, the lower part of the plug is a buckle, and the protective ring on the outer side of the injection port has two longitudinal grooves in a straight line, which are connected to the injection port. The protective ring at the bottom of the injection port has a circular groove, which is connected to the groove and the injection port. The buckle can slide along the groove and rotate in the circular groove when it reaches the bottom of the injection port, so that the rectangular limiting block is perpendicular to the groove and abuts against the upper side of the circular groove.

[0011] Preferably, multiple arc-shaped retainers are provided on the upper side of the circular groove outside the card slot. The arc-shaped retainers can limit the buckle, and a slot is provided on the upper side of the plug.

[0012] This invention has a reasonable and compact structure and is easy to use. By setting a sealing structure, it prevents external dust and particles from entering the bearing during operation, reducing the problem of excessive bearing wear and increasing bearing service life. By setting an oil injection structure, it injects lubricating fluid, ensuring lubrication effect while preventing impurities from entering. Attached Figure Description

[0013] AppendixFigure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Appendix Figure 2 For the appendix Figure 1 A disassembled structural diagram of the bearing inner ring, bearing cage, and bearing outer ring.

[0015] Appendix Figure 3 This is a schematic diagram of the main cross-sectional structure of the present invention.

[0016] Appendix Figure 4 For the appendix Figure 3 A magnified structural diagram of point A in the middle.

[0017] Appendix Figure 5 For the appendix Figure 1 A partial cross-sectional three-dimensional structural diagram of the central protective ring.

[0018] Appendix Figure 6 For the appendix Figure 5 A magnified structural diagram at point B in the middle.

[0019] The codes in the attached diagram are as follows: 1 is the bearing bracket, 2 is the first limiting groove, 3 is the bearing ball, 4 is the bearing inner ring, 5 is the second limiting groove, 6 is the bearing outer ring, 7 is the third limiting groove, 8 is the protective ring, 9 is the polyurethane rubber ring, 10 is the injection port, 11 is the plug, 12 is the slot, 13 is the arc-shaped retainer, 14 is the buckle, 15 is the lubrication groove, and 16 is the lubrication hole. Detailed Implementation

[0020] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0021] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0022] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1-6As shown, the bearing for use in strong vibration and impact environments includes an oil injection structure, a sealing structure, and an inner bearing ring 4, a bearing housing 1, and an outer bearing ring 6 arranged sequentially from the inside to the outside. The bearing housing 1 is provided with several first limiting grooves 2 that are connected internally and externally. Bearing balls 3 are rotatably installed in the first limiting grooves 2. A second limiting groove 5 with an outward opening is provided on the outer side of the inner bearing ring 4 corresponding to each position of the first limiting groove 2. A third limiting groove 7 with an inward opening is provided on the inner side of the outer bearing ring 6 at each position of the first limiting groove 2. The inner end and outer end of the bearing ball 3 are located in the second limiting groove 5 and the third limiting groove 7, respectively. The sealing structure can seal the upper and lower sides of the inner bearing ring 4, the bearing housing 1, and the outer bearing ring 6 and has anti-vibration characteristics. An oil injection structure is provided on the sealing structure corresponding to the position of the bearing housing 1.

[0023] The sealing structure can seal the upper and lower sides of the bearing inner ring 4, bearing cage 1, and bearing outer ring 6, preventing external dust and particles from entering the bearing during operation. The sealing structure has certain anti-vibration characteristics. When it is necessary to add lubricant to the bearing, it can be injected through the oil injection structure to prevent external dust or particles from entering the bearing when the bearing is disassembled or immersed in lubricant, which could cause excessive wear of the bearing.

[0024] The bearings described above for use in environments with strong vibration and impact can be further optimized and / or improved according to actual needs: Example 2: As shown in the attached document Figure 1 , 2 As shown in Figure 6, the sealing structure includes a protective ring 8 and a rubber ring 9. The rubber ring 9 covers the upper and lower sides of the bearing inner ring 4 and the bearing housing 1. The protective ring 8 is installed on the upper and lower sides of the bearing outer ring 6. The protective ring 8 is located outside the rubber ring 9 and is rotatably connected to the rubber ring 9. The protective ring 8 and the rubber ring 9 fill the gaps between the bearing inner ring 4, the bearing housing 1, and the bearing outer ring 6, preventing external dust and particles from entering the bearing during operation and reducing the risk of wear.

[0025] Example 3: As shown in the attached document Figure 1 , 2 As shown in Figure 6, the rubber ring 9 is a polyurethane rubber ring, which has a low coefficient of friction and vibration resistance. The cross-section of the rubber ring 9 is L-shaped, and the inner end of the rubber ring 9 can seal the upper and lower ends of the bearing bracket 1. The inner end of the rubber ring 9 is slidably connected to the upper and lower ends of the bearing bracket 1. The polyurethane rubber ring has a low coefficient of friction and vibration resistance, which can reduce friction with internal parts while providing vibration resistance.

[0026] Example 4: As shown in the appendix Figure 1 , 3As shown in Figure 4, the protective ring 8 corresponding to the position of the bearing bracket 1 has an injection port 10 that runs vertically through it. The rubber ring 9 corresponding to the injection port 10 has a lubrication groove 15, a lubrication hole 16, and a lubrication groove 15 on its upper, middle, and lower sides, respectively. The injection port 10, lubrication groove 15, and lubrication hole 16 are interconnected, and a plug 11 is provided inside the injection port 10. As needed, the lubrication groove 15 is an annular groove, which not only keeps the upper and lower sides of the rubber ring 9 and the protective ring 8 lubricated, but also stores a certain amount of lubricating oil, which can reduce the frequency of oiling. When oiling, the plug 11 is removed, and lubricating fluid is injected. The lubricating fluid flows along the injection port 10, lubrication groove 15, and lubrication hole 16 to the bearing balls 3, keeping the bearing balls 3 smooth. After the oiling is closed, the plug 11 is reinstalled.

[0027] Example 5: As shown in the attached document Figure 5 , 6 As shown, the upper part of the plug 11 is circular, the middle part of the plug 11 is cylindrical and can block the injection port 10, and the lower part of the plug 11 is a buckle 14. The protective ring 8 on the outer side of the injection port 10 is provided with two longitudinal grooves 12 in a straight line. The grooves 12 are connected to the injection port 10. The protective ring 8 at the bottom of the injection port 10 is provided with a circular groove. The circular groove is connected to the grooves 12 and the injection port 10. The buckle 14 can slide along the grooves 12 and rotate in the circular groove when it reaches the bottom of the injection port 10, so that the rectangular limiting block is perpendicular to the grooves 12 and abuts against the upper side of the circular groove. When it is necessary to add lubricant to the bearing, rotate the plug 11 90° so that the buckle 14 at the bottom of the plug 11 is in the groove 12. Then, take the plug 11 out along the groove 12 and start adding oil. After the oil is added, align the buckle 14 at the bottom of the plug 11 with the groove 12 and lower it down. After reaching the bottom, rotate the plug 11 90° so that the buckle 14 is against the upper side of the circular groove and cannot be pulled out upwards, thereby sealing the injection port 10 and preventing lubricant leakage.

[0028] Example 6: As attached Figure 6 As shown, multiple arc-shaped retainers 13 are provided on the upper side of the circular groove other than the slot 12. The arc-shaped retainers 13 can limit the buckle 14, and a slot is provided on the upper side of the plug 11. The slot makes it easy to rotate the plug 11 with a tool, and the arc-shaped retainers 13 further limit the buckle 14, preventing the buckle 14 from rotating out of the injection port 10, thus improving the sealing effect.

[0029] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A bearing for use in environments with strong vibration and shock, characterized in that... The bearing includes an oil injection structure, a sealing structure, and an inner bearing ring, a bearing housing, and an outer bearing ring arranged sequentially from the inside out. The bearing housing has several first limiting grooves that are connected internally and externally. Bearing balls are rotatably installed in the first limiting grooves. A second limiting groove with an outward opening is provided on the outer side of the inner bearing ring corresponding to each first limiting groove position. A third limiting groove with an inward opening is provided on the inner side of the outer bearing ring corresponding to each first limiting groove position. The inner and outer ends of the bearing balls are located in the second and third limiting grooves, respectively. The sealing structure can seal the upper and lower sides of the inner bearing ring, the bearing housing, and the outer bearing ring and has anti-vibration characteristics. An oil injection structure is provided on the sealing structure corresponding to the bearing housing position.

2. The bearing for use in strong vibration and shock environments according to claim 1, characterized in that... The sealing structure includes a protective ring and a rubber ring. The rubber ring covers the upper and lower sides of the bearing inner ring and bearing housing. The protective ring is installed on the upper and lower sides of the bearing outer ring. The protective ring is located outside the rubber ring and is rotatably connected to the rubber ring.

3. The bearing for use in strong vibration and shock environments according to claim 2, characterized in that... The rubber ring is made of polyurethane rubber, which has a low coefficient of friction and vibration resistance. The rubber ring has an L-shaped cross-section, and the inner end of the rubber ring can seal the upper and lower ends of the bearing bracket.

4. The bearing for use in strong vibration and shock environments according to claim 2 or 3, characterized in that... The protective ring corresponding to the bearing bracket position has an injection port that runs vertically through it. The rubber ring corresponding to the injection port position has a lubrication groove, a lubrication hole, and a lubrication groove on its upper, middle, and lower sides, respectively. The injection port, lubrication groove, and lubrication hole are connected to each other, and a plug is provided inside the injection port.

5. The bearing for use in strong vibration and shock environments according to claim 4, characterized in that... The upper part of the plug is circular, the middle part of the plug is cylindrical and can seal the injection port, and the lower part of the plug is a buckle. The protective ring on the outer side of the injection port has two longitudinal grooves in a straight line, which are connected to the injection port. The protective ring at the bottom of the injection port has a circular groove, which is connected to the groove and the injection port. The buckle can slide along the groove and rotate in the circular groove when it reaches the bottom of the injection port, so that the rectangular limiting block is perpendicular to the groove and abuts against the upper side of the circular groove.

6. The bearing for use in strong vibration and shock environments according to claim 5, characterized in that... Multiple arc-shaped retainers are provided on the upper side of the circular groove outside the card slot. The arc-shaped retainers can limit the buckle. A slot is provided on the upper side of the plug.

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