Universal rod end joint bearing

Abstract

The utility model relates to the technical field of rod end joint bearing discloses a universal rod end joint bearing, including the outer shell, the inner side of outer shell is provided with the steel ball, the outer side fixed connection of outer shell has the connecting rod, the inner side sliding connection of connecting rod has the extension rod, the both sides symmetrical of connecting rod are provided with two fastening bolts, the outer side fixed connection of extension rod has the limit ring, the utility model discloses the connecting rod is set up, the inner side sliding of connecting rod is provided with the extension rod, the extension rod can slide out from the inner side of connecting rod according to need, effectively improved the use distance of connecting rod and extension rod, the use length of extension connecting rod is lengthened, the extension rod can rotate in the inner side of connecting rod simultaneously, the use angle of outer shell is convenient to change, effectively improved the applicability of outer shell, and after adjusting the angle, can be through fastening bolt and be limited fixed, thereby effectively improved the stability of use.

Description

Technical Field

[0001] This utility model relates to the field of rod end joint bearing technology, and in particular to a universal rod end joint bearing. Background Technology

[0002] Rod end spherical plain bearings are a special type of bearing that combines a spherical plain bearing with a rod end body. The rod end body has internal or external threads for easy connection with rod components. The outer ring is often made of hardened steel, while the inner ring is often fitted with bearing alloy or embedded with solid lubricant to reduce lubrication and maintenance requirements. They are widely used in textile machinery, construction machinery, automotive suspension, and aerospace, and are especially suitable for transmission parts that require flexible rotation and have installation errors. They also have both connection and adaptive motion functions.

[0003] Most existing rod end spherical plain bearings adopt an integrated molding or fixed-size design. The rod end length needs to be preset according to the specific working conditions. During installation, it depends on the precise matching of the assembly environment and the design dimensions. However, in actual applications, fixed length often causes adaptation problems. When the actual required length is slightly larger than the preset value, loosening due to excessive assembly clearance is likely to occur. If it is smaller than the preset value, additional stress may be generated due to forced installation, causing premature wear of the bearing. Fixed length design will force the use of temporary measures such as adding shims and machining, which not only reduces assembly efficiency but may also damage the overall rigidity of the bearing, making it difficult to meet the requirements of modern machinery for assembly flexibility and adaptability.

[0004] Therefore, it is necessary to invent a universal joint bearing to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a universal joint end bearing to solve the problems mentioned in the background art, which are mostly made of one-piece molding or fixed size design. The length of the rod end needs to be preset according to the specific working conditions. During installation, it depends on the precise matching of the assembly environment and the design size. However, in actual applications, the fixed length often causes adaptation problems. When the actual required length is slightly larger than the preset value, loosening due to excessive assembly clearance is likely to occur. If it is smaller than the preset value, additional stress may be generated due to forced installation, causing premature wear of the bearing. The fixed length design will force the use of temporary measures such as adding shims and machining, which not only reduces assembly efficiency but may also damage the overall rigidity of the bearing, making it difficult to meet the needs of modern machinery for assembly flexibility and adaptability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a universal joint bearing, comprising a housing, a steel ball disposed on the inner side of the housing, a connecting rod fixedly connected to the outer side of the housing, an extension rod slidably connected to the inner side of the connecting rod, and two fastening bolts symmetrically disposed on both sides of the connecting rod;

[0007] A limiting ring is fixedly connected to the outer side of the extension rod, and the limiting ring is slidably connected to the inner side of the connecting rod. Multiple through holes are evenly arranged on the outer side of the extension rod, and the through holes are corresponding to the fastening bolts.

[0008] As a preferred embodiment, a sleeve is provided on the inner side of the connecting rod near the outer casing, and a sliding groove is provided on the inner side of the sleeve. A guide rod is fixedly connected to the side of the extension rod near the sleeve, and the guide rod is slidably connected to the inner side of the sliding groove.

[0009] As a preferred embodiment, a spring is provided on the outer side of the guide rod, and the spring is disposed between the limiting ring and the sleeve.

[0010] As a preferred embodiment, a connecting block is fixedly connected to the end of the extension rod, and a mounting ring is fixedly connected to the side of the connecting block. Multiple threaded holes are evenly opened around the perimeter of the mounting ring.

[0011] As a preferred embodiment, a fixing ring is provided on the outer side of the mounting ring, and an internal thread is provided on the inner side of the fixing ring. The fixing ring and the mounting ring are fixedly connected by screws.

[0012] As a preferred embodiment, a protective ring is provided between the outer shell and the steel ball. The interior of the protective ring is hollowed out, and oil inlet holes are symmetrically provided on both sides of the top of the protective ring. A sealing plug is provided on the inner side of the oil inlet hole, and multiple oil leakage holes are evenly provided on the side of the protective ring close to the steel ball.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model features a connecting rod with an extension rod slidably mounted on its inner side. The extension rod can slide out from the inner side of the connecting rod as needed, effectively increasing the working distance between the connecting rod and the extension rod and extending the working length of the connecting rod. At the same time, the extension rod can rotate inside the connecting rod, facilitating changes in the working angle of the outer shell and effectively improving the applicability of the outer shell. After the angle is adjusted, it can be fixed by tightening bolts, thereby effectively improving the stability of use.

[0015] 2. This utility model features a protective ring between the steel ball and the outer shell. The inner side of the protective ring is hollowed out, and multiple oil seepage holes are evenly distributed on the inner ring of the protective ring. The oil seepage holes directly contact the steel ball. Two oil inlet holes are symmetrically arranged at the top of the protective ring to facilitate the injection of lubricating oil. This allows the lubricating oil to seep out through the oil seepage holes and contact the steel ball, reducing the wear of the steel ball and improving its service life. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the extension rod in this utility model;

[0018] Figure 3 This is a schematic diagram of the protective ring in this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting ring in this utility model.

[0020] In the picture:

[0021] 1. Outer shell; 11. Steel ball; 12. Protective ring; 121. Sealing plug; 122. Oil inlet; 123. Oil seepage hole; 13. Connecting rod; 131. Sleeve; 132. Slide groove; 14. Fastening bolt; 15. Extension rod; 151. Through hole; 152. Limiting ring; 153. Guide rod; 154. Spring; 155. Connecting block; 156. Mounting ring; 157. Threaded hole; 16. Fixing ring; 161. Internal thread. Detailed Implementation

[0022] 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.

[0023] Please see the appendix Figure 1 - Appendix Figure 4 A universal joint bearing includes a housing 1, a steel ball 11 disposed on the inner side of the housing 1, a connecting rod 13 fixedly connected to the outer side of the housing 1, an extension rod 15 slidably connected to the inner side of the connecting rod 13, and two fastening bolts 14 symmetrically disposed on both sides of the connecting rod 13.

[0024] A limiting ring 152 is fixedly connected to the outer side of the extension rod 15. The limiting ring 152 is slidably connected to the inner side of the connecting rod 13. Multiple through holes 151 are evenly arranged on the outer side of the extension rod 15, and the through holes 151 are correspondingly arranged with the fastening bolts 14.

[0025] Specifically, by setting a connecting rod 13, an extension rod 15 is slidably provided on the inner side of the connecting rod 13. The extension rod 15 can slide out from the inner side of the connecting rod 13 as needed, which effectively increases the working distance between the connecting rod 13 and the extension rod 15 and extends the working length of the connecting rod 13. At the same time, the extension rod 15 can rotate on the inner side of the connecting rod 13, which makes it easy to change the working angle of the outer shell 1, effectively improving the applicability of the outer shell 1. After the angle is adjusted, it can be fixed by fastening bolts 14, thereby effectively improving the stability of use.

[0026] Please see the appendix Figure 2 A sleeve 131 is provided on the inner side of the connecting rod 13 near the outer casing 1. A groove 132 is provided on the inner side of the sleeve 131. A guide rod 153 is fixedly connected to the side of the extension rod 15 near the sleeve 131. The guide rod 153 is slidably connected to the inner side of the groove 132.

[0027] Specifically, by setting a connecting rod 13, an extension rod 15 is slidably provided on the inner side of the connecting rod 13. The extension rod 15 can slide out from the inner side of the connecting rod 13 as needed, effectively increasing the working distance between the connecting rod 13 and the extension rod 15, and extending the working length of the connecting rod 13. At the same time, the extension rod 15 can rotate on the inner side of the connecting rod 13, which facilitates changing the working angle of the outer shell 1, effectively improving the applicability of the outer shell 1. After the angle is adjusted, it can be fixed by fastening bolts 14, thereby effectively improving the stability of use. By setting a sleeve 131, a sliding groove 132 is opened on the inner side of the sleeve 131, so that the guide rod 153 can slide on the inner side of the sliding groove 132, thereby effectively improving the stability of the movement of the guide rod 153, and allowing the extension rod 15 to slide stably on the inner side of the connecting rod 13. By setting a limiting ring 152, the limiting ring 152 can slide on the inner side of the connecting rod 13, and can also rotate on the inner side of the connecting rod 13.

[0028] Please see the appendix Figure 2 A spring 154 is provided on the outside of the guide rod 153, and the spring 154 is located between the limiting ring 152 and the sleeve 131.

[0029] Specifically, by setting a spring 154, which is located between the limiting ring 152 and the sleeve 131, the spring 154 is in a compressed state during actual use. After the fastening bolt 14 is pulled out of the through hole 151, the spring 154 squeezes the limiting ring 152, thereby effectively allowing the extension rod 15 to slide out of the connecting rod 13. When the extension rod 15 is squeezed into the interior of the connecting rod 13, the spring 154 is compressed by force, which facilitates the removal of the extension rod 15.

[0030] Please see the appendix Figure 1 and Figure 4 The end of the extension rod 15 is fixedly connected to a connecting block 155, and the side of the connecting block 155 is fixedly connected to a mounting ring 156. Multiple threaded holes 157 are evenly opened around the mounting ring 156. A fixing ring 16 is provided on the outer side of the mounting ring 156, and an internal thread 161 is opened on the inner side of the fixing ring 16. The fixing ring 16 and the mounting ring 156 are fixedly connected by screws.

[0031] Specifically, by setting the connecting block 155 and the mounting ring 156, both of which are fixedly connected to the extension rod 15, the extension length of the extension rod 15 can be changed, which can effectively change the position of the mounting ring 156. By setting the threaded hole 157, the corresponding setting of the fixing ring 16 is also set with a threaded hole 157, which makes it easy to install and fix the fixing ring 16 and the mounting ring 156 with screws. The inner side of the fixing ring 16 is provided with an internal thread 161, which facilitates the fixing of other structures. When the internal thread 161 inside the fixing ring 16 wears, it is easy to replace the fixing ring 16.

[0032] Please see the appendix Figure 1 and Figure 3 A protective ring 12 is provided between the outer shell 1 and the steel ball 11. The interior of the protective ring 12 is hollow. Oil inlet holes 122 are symmetrically provided on both sides of the top of the protective ring 12. A sealing plug 121 is provided on the inner side of the oil inlet hole 122. Multiple oil seepage holes 123 are evenly provided on the side of the protective ring 12 that is close to the steel ball 11.

[0033] Specifically, a protective ring 12 is provided between the steel ball 11 and the outer shell 1. The inner side of the protective ring 12 is hollowed out, and multiple oil seepage holes 123 are evenly arranged on the inner ring of the protective ring 12. The oil seepage holes 123 are in direct contact with the steel ball 11. Two oil inlet holes 122 are symmetrically arranged at the top of the protective ring 12 to facilitate the injection of lubricating oil. This allows the lubricating oil to seep out along the oil seepage holes 123 and come into contact with the steel ball 11, reducing the wear of the steel ball 11 and improving the service life of the steel ball 11.

[0034] The working principle of this utility model is as follows: In specific use, a connecting rod 13 is provided, and an extension rod 15 is slidably provided on the inner side of the connecting rod 13. The extension rod 15 can slide out from the inner side of the connecting rod 13 as needed, which effectively increases the working distance between the connecting rod 13 and the extension rod 15 and extends the working length of the connecting rod 13. At the same time, the extension rod 15 can rotate on the inner side of the connecting rod 13, which makes it easy to change the working angle of the outer shell 1, effectively improving the applicability of the outer shell 1. After the angle is adjusted, it can be fixed by fastening bolts 14, thereby effectively improving the stability of use.

[0035] By setting the connecting block 155 and the mounting ring 156, both of which are fixedly connected to the extension rod 15, the extension length of the extension rod 15 can be changed, and the position of the mounting ring 156 can be effectively changed. By setting the threaded hole 157, the corresponding setting of the fixing ring 16 is also set with a threaded hole 157, which makes it easy to install and fix the fixing ring 16 and the mounting ring 156 with screws. The inner side of the fixing ring 16 is provided with an internal thread 161, which makes it easy to fix other structures. When the internal thread 161 inside the fixing ring 16 is worn, it is easy to replace the fixing ring 16.

[0036] A protective ring 12 is provided between the steel ball 11 and the outer shell 1. The inner side of the protective ring 12 is hollowed out, and multiple oil seepage holes 123 are evenly arranged on the inner ring of the protective ring 12. The oil seepage holes 123 are in direct contact with the steel ball 11. Two oil inlet holes 122 are symmetrically arranged at the top of the protective ring 12 to facilitate the injection of lubricating oil. This allows the lubricating oil to seep out along the oil seepage holes 123 and come into contact with the steel ball 11, reducing the wear of the steel ball 11 and improving the service life of the steel ball 11.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal rod end joint bearing comprising an outer housing (1), the inner side of which is provided with a steel ball (11), characterized in that: A connecting rod (13) is fixedly connected to the outer side of the outer shell (1), and an extension rod (15) is slidably connected to the inner side of the connecting rod (13). Two fastening bolts (14) are symmetrically arranged on both sides of the connecting rod (13). A limiting ring (152) is fixedly connected to the outer side of the extension rod (15). The limiting ring (152) is slidably connected to the inner side of the connecting rod (13). A plurality of through holes (151) are evenly arranged on the outer side of the extension rod (15). The through holes (151) are correspondingly arranged with the fastening bolts (14).

2. A universal rod end joint bearing according to claim 1, characterized in that: A sleeve (131) is provided on the inner side of the connecting rod (13) near the outer shell (1). A groove (132) is provided on the inner side of the sleeve (131). A guide rod (153) is fixedly connected to the side of the extension rod (15) near the sleeve (131). The guide rod (153) is slidably connected to the inner side of the groove (132).

3. A universal rod end joint bearing according to claim 2, characterized in that: A spring (154) is provided on the outside of the guide rod (153), and the spring (154) is located between the limiting ring (152) and the sleeve (131).

4. A universal rod end joint bearing according to claim 3, characterized in that: The end of the extension rod (15) is fixedly connected to a connecting block (155), and the side of the connecting block (155) is fixedly connected to a mounting ring (156). The mounting ring (156) has multiple threaded holes (157) evenly opened around its perimeter.

5. A universal rod end joint bearing according to claim 4, characterized in that: A fixing ring (16) is provided on the outer side of the mounting ring (156), and an internal thread (161) is provided on the inner side of the fixing ring (16). The fixing ring (16) and the mounting ring (156) are fixedly connected by screws.

6. A cardan rod end joint bearing according to claim 5, characterized in that: A protective ring (12) is provided between the outer shell (1) and the steel ball (11). The interior of the protective ring (12) is hollow. Oil inlet holes (122) are symmetrically provided on both sides of the top of the protective ring (12). A sealing plug (121) is provided on the inner side of the oil inlet hole (122). Multiple oil leakage holes (123) are evenly opened on the side of the protective ring (12) close to the steel ball (11).

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