Shaft sleeve for high-load motor
By introducing a high-sealing, lubrication-reducing, and wear-resistant bending mechanism into the bushing, the problems of insufficient sealing, poor lubrication and noise reduction, and insufficient wear and bending resistance are solved, achieving efficient sealing, noise reduction lubrication, and enhanced bending resistance, thereby improving the service life and safety of the bushing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PING HE LONG FEN MO YE JIN ZHU HAI YOU XIAN GONG SI
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-28
AI Technical Summary
The existing bushings have insufficient sealing performance, and the lubrication and noise reduction effects need to be improved. Furthermore, their wear resistance and bending resistance are poor, which makes them prone to dust ingress, noise generation, and wear during use, resulting in reduced service life and safety.
A high-load motor bushing was designed, comprising a high-sealing mechanism, a lubrication and noise reduction mechanism, and a wear-resistant and bending-resistant mechanism. Through components such as a sealing plug, an oil suction chamber, sound-absorbing cotton, a sound-absorbing layer, reinforcing ribs, and a rubber layer, it achieves sealing, lubrication and noise reduction, and wear-resistant and bending-resistant functions.
It effectively prevents dust from entering, reduces noise and wear, improves lubrication, enhances the flexibility and bending resistance of the bushing, extends service life, and improves safety.
Smart Images
Figure CN224174426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor bushing technology, specifically a bushing for a high-load motor. Background Technology
[0002] A bushing is a cylindrical mechanical part that fits onto a rotating shaft and is a component of a sliding bearing. Generally, the bushing is interference-fitted with the bearing housing and clearance-fitted with the shaft. A bushing refers to a sleeve on a propeller shaft or stern shaft. Bearings are components that fix and reduce the coefficient of friction of load during mechanical transmission. To meet market needs, a bushing for high-load motors is required.
[0003] Existing bushings cannot simultaneously achieve both high hardness and wear resistance, as well as good lubrication. The significant noise they generate is also a major drawback. Furthermore, their sealing performance is insufficient, allowing dust and other impurities to enter the bushing body through the oil filling groove, affecting its normal operation. The lubrication and noise reduction effects of existing bushings need further improvement, meaning they cannot effectively reduce noise generated between the shaft and bushing, and lubrication efficiency is also reduced. In addition, existing bushings lack sufficient wear and bending resistance, significantly reducing their service life and safety. Utility Model Content
[0004] The purpose of this utility model is to provide a bushing for a high-load motor, so as to solve the problems mentioned in the background art, such as insufficient sealing, the need to further improve the lubrication and noise reduction effect, and insufficient wear and bending resistance.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bushing for a high-load motor, comprising a bushing body, a through-hole groove at the center of the bushing body, a top chamfer of C0.4 at the top of the groove, a bottom chamfer of C0.2 at the bottom of the groove, and a center outer chamfer of C0.3 on the surface of the bushing body. The interior of the bushing body is also provided with... The bushing body has an oil inlet groove, and the inner wall of the bushing body is provided with an oil inlet groove. The oil inlet groove is connected to the inside of the oil filling groove. The bushing body is provided with a lubrication and noise reduction mechanism. The lubrication and noise reduction mechanism includes an oil suction chamber, an oil suction block and a lubrication and noise reduction assembly. The inner wall of the oil filling groove is provided with a high sealing mechanism. The high sealing mechanism consists of a sealing plug, a handle, a first sealing gasket and a second sealing gasket. The bushing body is provided with a wear-resistant and bending-resistant mechanism. The wear-resistant and bending-resistant mechanism consists of an inner lining layer, a rubber layer, a cavity and reinforcing ribs.
[0006] Preferably, the number of oil filling grooves is four sets. The bushing body, bottom chamfer and top chamfer are used to prevent the bushing body from being scratched. The bushing body surface and one side of the groove are provided with a middle inner chamfer. The chamfer specification of the middle inner chamfer is R0.3.
[0007] Preferably, the lubrication and noise reduction assembly is located inside the bushing body. The lubrication and noise reduction assembly is composed of a sound-absorbing layer and sound-absorbing cotton. The inner wall of the bushing body is equipped with an oil suction chamber for storing oil, and the oil suction chamber is connected to the inside of the oil inlet groove.
[0008] Preferably, the surface of the oil suction chamber is equipped with oil suction blocks at equal intervals, the oil suction blocks are connected to the interior of the oil suction chamber, the inner wall of the bushing body is equipped with a sound-absorbing layer, and the inner wall of the sound-absorbing layer is adhered with sound-absorbing cotton for noise reduction of the bushing body.
[0009] Preferably, each of the oil filling grooves is provided with a sealing plug inside, one end of the sealing plug extends into the interior of the oil filling groove, a handle is installed on the surface of the sealing plug, and a second sealing gasket for sealing between the sealing plug and the oil filling groove is wrapped on the surface of the sealing plug.
[0010] Preferably, the second sealing gasket is made of rubber, and the surface of the second sealing gasket away from the sealing plug is adhered with the first sealing gasket, which is in contact with the inner wall of the oil filling groove. The first sealing gasket is made of silicone.
[0011] Preferably, each bushing body has an internal cavity, and each cavity is equipped with reinforcing ribs to improve the bending resistance of the bushing body. The inner wall of the cavity is adhered with a rubber layer to improve the flexibility of the bushing body.
[0012] Preferably, an inner lining layer is adhered to the inner wall of the rubber layer, and an inner lining layer is adhered to the inner wall of the cavity, with the inner lining layer in contact with the surface of the rubber layer.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the high-load motor bushing not only prevents dust and other impurities from entering the bushing body through the oil filling groove and affecting the normal use of the bushing body, but also reduces the noise generated between the shaft and the bushing body. At the same time, it improves the lubrication effect of the bushing and greatly enhances its flexibility and bending resistance, thus greatly improving its service life and safety.
[0014] 1. With a high-sealing mechanism, the user holds the handle and inserts the sealing plug into the oil filling groove. The handle facilitates the user's removal and placement. When the sealing plug moves into the oil filling groove, it drives the second sealing gasket and the first sealing gasket to move. The second sealing gasket drives the first sealing gasket to contact the inner wall of the oil filling groove. The combined action of the first and second sealing gaskets seals the sealing plug and the oil filling groove, achieving the high-sealing function of the bushing. This prevents dust and other impurities from entering the bushing body through the oil filling groove and affecting the normal use of the bushing body.
[0015] 2. By incorporating a lubrication and noise reduction mechanism, the noise generated between the drive shaft and bushing body during operation is reduced through the combined action of the sound-absorbing layer and sound-absorbing cotton. After the lubricating oil enters the oil suction chamber, it is absorbed by the oil suction chamber. Under the action of the oil suction block, oil is replenished between the inner walls of the drive shaft and bushing body, preventing greater wear and noise on the bushing body due to lack of oil. This achieves the function of lubrication and noise reduction of the bushing, thereby reducing the noise generated between the shaft and bushing body during use and improving the lubrication effect of the bushing.
[0016] 3. By incorporating a wear-resistant and bending-resistant mechanism, the bushing body exhibits better resistance to bending and deformation under the reinforcement of the internal cavity. The combined effect of the rubber layer and the inner lining layer within the cavity further enhances the wear resistance and durability of the bushing body, thus achieving the function of wear-resistant and bending-resistant bushing. This significantly improves the bushing's flexibility and bending resistance during use, greatly enhancing its service life and safety. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a side sectional view of the present invention.
[0019] Figure 3 This is a top view enlarged structural diagram of the present invention;
[0020] Figure 4 For the present utility model Figure 2 Enlarged structural schematic diagram of the lubrication and noise reduction mechanism;
[0021] Figure 5 For the present utility model Figure 2 Enlarged structural diagram of a medium-to-high sealing mechanism;
[0022] Figure 6 For the present utility model Figure 3 Enlarged structural diagram of the wear-resistant and bending-resistant mechanism.
[0023] In the diagram: 1. Bushing body; 101. Outer chamfer at the middle end; 102. Chamfer at the bottom end; 103. Chamfer at the top end; 104. Groove; 105. Oil filling groove; 106. Oil inlet groove; 107. Inner chamfer at the middle; 2. Lubrication and noise reduction mechanism; 21. Oil suction chamber; 22. Oil suction block; 23. Lubrication and noise reduction assembly; 231. Sound-absorbing layer; 232. Sound-absorbing cotton; 3. High sealing mechanism; 31. Sealing plug; 32. Handle; 33. First sealing gasket; 34. Second sealing gasket; 4. Wear-resistant and bending-resistant mechanism; 41. Inner lining layer; 42. Rubber layer; 43. Cavity; 44. Reinforcing rib. Detailed Implementation
[0024] 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0025] This utility model provides a structure for a high-load motor bushing, as follows: Figure 1 and Figure 2 As shown, the bushing includes a bushing body 1. A through-hole groove 104 is formed at the center of the bushing body 1. A top chamfer 103 with a chamfer size of C0.4 is formed at the top of the groove 104. A bottom chamfer 102 with a chamfer size of C0.2 is formed at the bottom of the groove 104. All surfaces of the bushing body 1 have a middle outer chamfer 101, and the bottom chamfer 102 has a chamfer size of C0.3. The body 1 has four sets of oil filling grooves 105 inside. The bushing body 1, bottom chamfer 102 and top chamfer 103 are used to prevent the bushing body 1 from being scratched. The bushing body 1 has a middle inner chamfer 107 on the surface of the bushing body 1 and on one side of the groove 104. The chamfer specification of the middle inner chamfer 107 is R0.3. The inner wall of the bushing body 1 has an oil inlet groove 106, which is connected to the inside of the oil filling groove 105.
[0026] Furthermore, such as Figure 2 and Figure 4As shown, the bushing body 1 is provided with a lubrication and noise reduction mechanism 2 inside. The lubrication and noise reduction mechanism 2 includes an oil suction chamber 21, an oil suction block 22 and a lubrication and noise reduction group 23 inside. The lubrication and noise reduction group 23 is located inside the bushing body 1 and is composed of a sound-absorbing layer 231 and sound-absorbing cotton 232. The inner wall of the bushing body 1 is provided with an oil suction chamber 21 for storing oil. The oil suction chamber 21 is connected to the inside of the oil inlet groove 106. The surface of the oil suction chamber 21 is provided with oil suction blocks 22 at equal intervals. The oil suction blocks 22 are connected to the inside of the oil suction chamber 21. The inner wall of the bushing body 1 is provided with a sound-absorbing layer 231 and the inner wall of the sound-absorbing layer 231 is adhered with sound-absorbing cotton 232 for noise reduction of the bushing body 1.
[0027] During implementation, the noise generated between the drive shaft and the bushing body 1 during operation is reduced by the combined action of the sound-absorbing layer 231 and the sound-absorbing cotton 232. After the lubricating oil enters the oil suction chamber 21, it is absorbed by the oil suction chamber 21. Under the action of the oil suction block 22, oil is replenished between the inner wall of the drive shaft and the bushing body 1 to avoid the phenomenon of greater wear and noise to the bushing body 1 due to lack of oil, so as to achieve the function of bushing lubrication and noise reduction.
[0028] Furthermore, such as Figure 2 and Figure 5 As shown, the inner wall of the oil filling tank 105 is provided with a high-sealing mechanism 3. The high-sealing mechanism 3 consists of a sealing plug 31, a handle 32, a first sealing gasket 33, and a second sealing gasket 34. The oil filling tank 105 is provided with a sealing plug 31. One end of the sealing plug 31 extends into the interior of the oil filling tank 105. A handle 32 is installed on the surface of the sealing plug 31. The surface of the sealing plug 31 is covered with a second sealing gasket 34 for sealing between the sealing plug 31 and the oil filling tank 105. The second sealing gasket 34 is made of rubber. The first sealing gasket 33 is adhered to the surface of the second sealing gasket 34 away from the sealing plug 31. The first sealing gasket 33 is in contact with the inner wall of the oil filling tank 105. The first sealing gasket 33 is made of silicone.
[0029] During implementation, the user holds the handle 32 and inserts the sealing plug 31 into the oil filling groove 105. The handle 32 facilitates the user's removal and placement. When the sealing plug 31 moves into the oil filling groove 105, the sealing plug 31 drives the second sealing gasket 34 and the first sealing gasket 33 to move. The second sealing gasket 34 drives the first sealing gasket 33 to contact the inner wall of the oil filling groove 105. Under the combined action of the first sealing gasket 33 and the second sealing gasket 34, the sealing plug 31 and the oil filling groove 105 are sealed to achieve the high sealing performance of the bushing.
[0030] Furthermore, such as Figure 3 and Figure 6As shown, the bushing body 1 is provided with a wear-resistant and bending-resistant mechanism 4 inside. The wear-resistant and bending-resistant mechanism 4 is composed of an inner liner 41, a rubber layer 42, a cavity 43 and a reinforcing rib 44. The bushing body 1 is provided with a cavity 43 inside. The cavity 43 is provided with a reinforcing rib 44 to improve the bending resistance of the bushing body 1. The inner wall of the cavity 43 is bonded with a rubber layer 42 to improve the flexibility of the bushing body 1. The inner wall of the rubber layer 42 is bonded with an inner liner 41. The inner wall of the cavity 43 is bonded with an inner liner 41. The inner liner 41 is in contact with the surface of the rubber layer 42.
[0031] During implementation, the reinforcing ribs 44 inside the cavity 43 enhance the bending and deformation resistance of the bushing body 1. The combined effect of the rubber layer 42 and the inner lining layer 41 inside the cavity 43 further improves the wear resistance and durability of the bushing body 1, thus achieving the function of wear resistance and bending resistance of the bushing.
[0032] Working principle: In use, first install the bushing body 1 at the designated position on the outer casing, so that one end of the motor drive shaft passes through the bushing body 1 and moves to the outside of the bushing body 1. The user introduces lubricating oil into the bushing body 1 through the oil filling groove 105. The lubricating oil enters the bottom chamfer 102 through the oil inlet groove 106 to lubricate the drive shaft and the bushing body 1. After lubrication, the user holds the handle 32 and inserts the sealing plug 31 into the oil filling groove 105. The handle 32 facilitates the user's removal and placement. When the sealing plug 31 moves into the oil filling groove 105, the sealing plug 31 drives the second sealing gasket 34 and the first sealing gasket 33 to move. The second sealing gasket 34 drives the first sealing gasket 33 to contact the inner wall of the oil filling groove 105. Under the combined action of the first sealing gasket 33 and the second sealing gasket 34, the sealing plug 31 and the oil filling groove 105 are sealed to achieve the function of high sealing performance of the bushing. This prevents dust and other impurities from entering the interior of the bushing body 1 through the oil filling groove 105 and affecting the normal use of the bushing body 1 during use.
[0033] Subsequently, the noise generated between the drive shaft and bushing body 1 during operation is reduced by the combined action of the sound-absorbing layer 231 and the sound-absorbing cotton 232. After the lubricating oil enters the oil suction chamber 21, it is absorbed by the oil suction chamber 21. Under the action of the oil suction block 22, oil is replenished between the inner wall of the drive shaft and bushing body 1 to avoid the phenomenon of greater wear and noise to the bushing body 1 due to lack of oil. This achieves the function of lubrication and noise reduction of the bushing, thereby reducing the noise generated between the shaft and bushing body 1 during use and improving the lubrication effect of the bushing.
[0034] Subsequently, the reinforcing ribs 44 inside the cavity 43 improve the bending and deformation resistance of the bushing body 1. The rubber layer 42 and the inner lining layer 41 inside the cavity 43 further enhance the wear resistance and durability of the bushing body 1, thus achieving the function of wear resistance and bending resistance of the bushing. This greatly improves the flexibility and bending resistance of the bushing during use, significantly increasing its service life and safety, and ultimately completing the use of the bushing.
[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A bushing for a high-load motor, comprising a bushing body (1), characterized in that: The bushing body (1) has a through-hole groove (104) at its center. The top of the groove (104) has a top chamfer (103) with a chamfer size of C0.
4. The bottom of the groove (104) has a bottom chamfer (102) with a chamfer size of C0.
2. The surface of the bushing body (1) has a middle outer chamfer (101), and the bottom chamfer (102) has a chamfer size of C0.
3. The interior of the bushing body (1) has an oil inlet groove (105), and the inner wall of the bushing body (1) has an oil inlet groove (106). 106) is connected to the inside of the oil filling groove (105). The inside of the bushing body (1) is provided with a lubrication and noise reduction mechanism (2). The inside of the lubrication and noise reduction mechanism (2) includes an oil suction chamber (21), an oil suction block (22) and a lubrication and noise reduction group (23). The inner wall of the oil filling groove (105) is provided with a high sealing mechanism (3). The high sealing mechanism (3) is composed of a sealing plug (31), a handle (32), a first sealing gasket (33) and a second sealing gasket (34). The inside of the bushing body (1) is provided with a wear-resistant and bending-resistant mechanism (4). The wear-resistant and bending-resistant mechanism (4) is composed of an inner lining layer (41), a rubber layer (42), a cavity (43) and a reinforcing rib (44).
2. The bushing for a high-load motor according to claim 1, characterized in that: The number of the oil filling grooves (105) is four sets. The bushing body (1), bottom chamfer (102) and top chamfer (103) are used to prevent the bushing body (1) from being scratched. The bushing body (1) has a middle inner chamfer (107) on its surface and on one side of the groove (104). The chamfer specification of the middle inner chamfer (107) is R0.
3.
3. The bushing for a high-load motor according to claim 1, characterized in that: The lubrication noise reduction group (23) is located inside the bushing body (1). The lubrication noise reduction group (23) is composed of a sound-absorbing layer (231) and sound-absorbing cotton (232). The inner wall of the bushing body (1) is equipped with an oil suction chamber (21) for storing oil. The oil suction chamber (21) is connected to the inside of the oil inlet groove (106).
4. A bushing for a high-load motor according to claim 3, characterized in that: The surface of the oil suction chamber (21) is equipped with oil suction blocks (22) at equal intervals. The oil suction blocks (22) are connected to the interior of the oil suction chamber (21). The inner wall of the bushing body (1) is equipped with a sound-absorbing layer (231). The inner wall of the sound-absorbing layer (231) is covered with sound-absorbing cotton (232) for noise reduction of the bushing body (1).
5. A high-load motor bushing according to claim 1, characterized in that: Each of the oil filling tanks (105) is provided with a sealing plug (31). One end of the sealing plug (31) extends into the interior of the oil filling tank (105). A handle (32) is installed on the surface of the sealing plug (31). A second sealing gasket (34) is wrapped around the surface of the sealing plug (31) for sealing between the sealing plug (31) and the oil filling tank (105).
6. A high-load motor bushing according to claim 5, characterized in that: The second sealing gasket (34) is made of rubber. The surface of the second sealing gasket (34) away from the sealing plug (31) is covered with a first sealing gasket (33). The first sealing gasket (33) is in contact with the inner wall of the oil filling groove (105). The first sealing gasket (33) is made of silicone.
7. A bushing for a high-load motor according to claim 1, characterized in that: The bushing body (1) has a cavity (43) inside. The cavity (43) is equipped with a reinforcing rib (44) to improve the bending resistance of the bushing body (1). The inner wall of the cavity (43) is glued with a rubber layer (42) to improve the flexibility of the bushing body (1).
8. A bushing for a high-load motor according to claim 7, characterized in that: The inner wall of the rubber layer (42) is adhered with an inner lining layer (41), and the inner wall of the cavity (43) is adhered with an inner lining layer (41). The inner lining layer (41) is in contact with the surface of the rubber layer (42).