Precision bearing for industrial robot

Abstract

The invention discloses a precision bearing for an industrial robot, and relates to the technical field of bearings, the precision bearing comprises a bearing mechanism, a lubricating mechanism is arranged on one side of the bearing mechanism, an elastic supporting mechanism is arranged on the inner side of the lubricating mechanism, and a mounting mechanism is arranged on the inner side of the elastic supporting mechanism. The connecting bent pipe is fixedly connected to the inner side of the lubricating oil storage box, one end of the connecting bent pipe is connected with the micro conveying pump machine, and lubricating oil is pumped out through the micro conveying pump machine and then is evenly distributed and conveyed to the right-angle conveying pipe through the connecting ring; and the lubricating liquid is conveyed to the spraying head through the right-angle conveying pipe and is atomized and sprayed out from the atomizing nozzles distributed on the spraying head, so that the lubricating liquid can be uniformly sprayed into the outer ring body and the rolling body, the large-range spraying and lubricating effect is realized, the high-efficiency self-lubricating effect is realized, and the service life of the rolling bearing is prolonged. Stable high-speed operation of the bearing is ensured, and the stability and reliability of the bearing are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bearings, and in particular to a precision bearing for industrial robots. Background Art

[0002] Industrial robots play a vital role in modern manufacturing, and their performance directly impacts production efficiency and product quality. Bearings, as key components of industrial robots, have a decisive influence on key performance indicators such as operational smoothness, repeatability, motion accuracy, and operational reliability. Industrial robot bearings primarily include thin-walled bearings, crossed cylindrical roller bearings, harmonic reducer bearings, and spherical plain bearings, but primarily cross-roller bearings. The cross-roller bearings used in welding robot joints feature a structure in which cylindrical rollers are arranged perpendicularly to each other within the bearing's inner and outer raceways. This allows a single bearing to simultaneously withstand the combined loads of radial force, bidirectional axial force, and overturning moment. The bearings offer high load-bearing capacity, excellent rigidity, high rotational accuracy, and are easy to install, saving space, reducing weight, significantly reducing friction, and providing excellent rotational accuracy.

[0003] In the prior art, for example, patent application number CN202020348564.5, titled "A Precision Bearing for Industrial Robots," comprises an outer ring and an inner ring. The inner ring is provided with a V-groove and a rectangular groove. The inner ring is divided into a mounting portion and a fixing portion. The mounting portion is also provided with a V-groove corresponding to the outer ring. The V-groove of the outer ring forms a roller mounting cavity with a roller disposed therein. A self-tightening oil seal mounting cavity is formed between the end of the mounting portion of the inner ring and the rectangular groove of the inner ring. A self-tightening oil seal is disposed within the self-tightening oil seal mounting cavity. The precision bearing for industrial robots provided by this utility model connects the fixing portion and the outer ring via rollers, making the bearing wall as thin as possible and achieving the smallest and lightest possible bearing. A skeleton oil seal is disposed between the end of the mounting portion of the inner ring and the rectangular groove of the outer ring, providing improved sealing and preventing oil seepage and leakage. Lubricating oil is added via an oil inlet mechanism, making it more convenient to use.

[0004] Existing bearings have poor lubrication performance. During long-term high-speed operation, they will generate large friction and heat, which not only increases energy consumption but also accelerates bearing wear, further reducing their reliability. To address the above problems, a precision bearing for industrial robots is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a precision bearing for industrial robots to solve the problem that the bearings have poor lubrication performance during operation in the prior art proposed in the above background technology. During long-term high-speed operation, large friction and heat will be generated, which not only increases energy consumption but also accelerates the wear of the bearings, thereby further reducing their reliability.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precision bearing for an industrial robot, comprising a bearing mechanism, a lubricating mechanism is provided on one side of the bearing mechanism, an elastic supporting mechanism is provided on the inner side of the lubricating mechanism, and an installation mechanism is provided on the inner side of the elastic supporting mechanism, the lubricating mechanism comprises an outer ring, a lubricating oil storage box is provided on the inner side of the outer ring, a connecting elbow is fixedly connected to the inner side of the lubricating oil storage box, one end of the connecting elbow is fixedly connected to a micro-delivery pump, a connecting ring is fixedly connected to the micro-delivery pump, a plurality of right-angle delivery pipes are evenly distributed on the connecting ring, one end of the right-angle delivery pipe is fixedly connected to a spray head, a plurality of atomizing nozzles are evenly distributed in a ring shape on the spray head, the outer ring is fixed to one side of a single side cover ring to form a stable installation, and a pad support ring is provided on the inner side to squeeze the outer side of the lubricating oil storage box to facilitate the installation of the lubricating oil storage box, while providing It provides a certain buffering and shock-absorbing effect to reduce the impact of vibration. The feed port is opened on the lubricating oil storage box, which makes it convenient to add lubricating oil to the inside of the feed port. The sealing plug can provide a closed blocking effect on the feed port to prevent the lubricating liquid from leaking. It is fixedly connected to the inner side of the lubricating oil storage box through a connecting elbow, and a micro-delivery pump is connected to one end of the connecting elbow. The micro-delivery pump is used to pump out the lubricating oil, and then evenly distributes it to the right-angle delivery pipe through the connecting ring. The lubricating oil is then transported to the spray head through the right-angle delivery pipe and sprayed out from the atomizing nozzles distributed on the spray head, which is conducive to evenly spraying the lubricating oil on the inside of the outer ring body and on the rolling element, achieving a large-scale spray lubrication effect, which is conducive to achieving high-efficiency self-lubrication, ensuring stable and high-speed operation of the bearing, improving the stability and reliability of the bearing, and avoiding the problem of increased bearing wear caused by increased friction and increased bearing temperature. The bearing mechanism includes an outer ring body, side cover rings are provided on both sides of the outer ring body, several right-angle conveying pipes are passed through the side faces of the side cover rings, the spray heads are distributed in the gaps on the sides of the side cover rings, the outer ring body is provided on the outside to provide installation support, and several rolling bodies are distributed in the connection gap in conjunction with the inner ring body on the inside, the rolling bodies can provide a rotation function, and the side cover rings are symmetrically provided on both sides of the outer ring body to provide a sealing function, thereby ensuring the stable operation of the bearing.

[0007] Preferably, the elastic support mechanism includes a mounting ring, a plurality of mounting seats are evenly distributed on the outer wall of the mounting ring, a spring piece is provided in the middle of the mounting seat, and an elastic damping rod is symmetrically provided on the outer side of the mounting seat. The elastic damping rod is provided on the side of the spring piece and is fixed to the outer side of the inner ring body through the mounting ring, and a plurality of mounting seats are distributed on the outer side of the mounting ring to facilitate providing a stable connection and installation function. The spring piece is connected and installed through the mounting seat, and is installed on both ends of the mounting seat through the elastic damping rod, and a rotating seat is provided at both ends of the elastic damping rod for connection and rotation.

[0008] Preferably, a rotating shaft is provided at both ends of the spring piece, a rotating seat is provided at both ends of the elastic damping rod, a spring part is provided on the outside of the elastic damping rod, the mounting seat connects and installs the spring piece, and cooperates with the rotating shaft to form a rotating connection, and the outer wall of the elastic damping rod is sleeved with a spring part to form an elastic support, which is beneficial to provide a buffering, shock-absorbing and flexible support effect for the outer ring, avoiding the problem of inconvenience in use caused by excessive vibration amplitude during operation.

[0009] Preferably, the mounting mechanism includes a mounting fastener, a connecting block is provided on the outer side of the mounting fastener, and a limiting strip is symmetrically provided on the inner side of the mounting fastener. The mounting fastener is distributed on the inner side of the side cover plate, and a connecting block is provided on the mounting ring, which facilitates the fastening of the connecting block on the limiting groove opened on the inner side of the inner support ring body, forming a stable fastening and fixing effect. At the same time, a limiting strip is provided on the mounting fastener to ensure stable installation.

[0010] Preferably, an inner support groove is provided between the two limit bars, and an inner support ring is clamped on the inner side of the inner support groove. The inner support ring is fitly connected to the inner side of the mounting fastener, and an inner support groove is provided inside, which facilitates the installation of the inner support ring on the inner side of the inner support groove to form an inner support, thereby ensuring that the side cover plate is stably installed on the side of the outer ring, which is beneficial to provide certain protection for the lubricating oil storage box, and also facilitates quick disassembly, thereby improving the convenience of operation.

[0011] Preferably, a padding ring is provided on the inner side of the outer ring, and the padding ring is sleeved on the outer side of the lubricating oil storage box. A feed port is opened on one side of the lubricating oil storage box, and a sealing plug is connected to the inner side of the feed port. A control box is installed on the side of the micro-conveyance pump. The padding ring provides a padding function to reduce the impact force, and a position for lubricating oil injection can be provided through the feed port. The sealing plug facilitates the sealing of the feed port, and the control box facilitates the control function.

[0012] Preferably, a side cover is installed on one side of the outer collar, and a through hole is opened through the side of the side cover. A protective ring is provided on one side of the side cover, which is connected to the side of the outer collar through the side cover to provide a sealing function. The through hole facilitates the convenient disassembly of the sealing plug. The protective ring is provided on the side of the side cover, which is conducive to improving the strength of the side cover to ensure safety.

[0013] Preferably, the inner side of the side cover ring is connected to an inner ring body, and an inner support ring body is fixedly installed on one side of the inner ring body. A number of limiting grooves are provided on the inner side of the inner support ring body, and the inner support ring body is arranged in the inner ring body and fixed, so as to cooperate with the outer ring to provide installation space for the lubricating oil storage box.

[0014] Preferably, a positioning ring groove is fixedly installed on one side of the side cover ring, and a number of rolling bodies are evenly distributed in a ring shape between the two positioning ring grooves. The positioning ring groove is installed on the side of the side cover ring to facilitate positioning of the rolling body to prevent it from falling off during the rotation process, thereby ensuring stable use.

[0015] Preferably, an embedded groove is provided on the outer wall of the inner ring body, and the rolling elements are evenly distributed on the inner side of the embedded groove. An annular groove opening is provided on the inner side of the outer ring body, and the rolling elements are evenly distributed on the inner side of the annular groove opening. The same function is provided by the cooperation of the embedded groove and the positioning ring groove, thereby further improving safety. The annular groove ensures that the rolling elements are also embedded on the inner side, thereby improving the overall stability.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the outer ring is fixed to one side of a single side cover ring to form a stable installation, and a support ring is provided on the inner side to squeeze the outer side of the lubricating oil storage box, so as to facilitate the installation of the lubricating oil storage box and provide a certain buffering and shock-absorbing effect to reduce the impact of vibration. The feed port is opened on the lubricating oil storage box, which facilitates the addition of lubricating oil to the inside of the feed port. The sealing plug can provide a closed blocking effect on the feed port to prevent the lubricating liquid from leaking. The connection elbow is fixed to the inner side of the lubricating oil storage box and is connected at one end of the connection elbow. The micro-delivery pump is used to pump out the lubricating oil, and then it is evenly distributed and delivered to the right-angle delivery pipe through the connecting ring. The lubricating liquid is then delivered to the spray head through the right-angle delivery pipe and sprayed out from the atomizing nozzles distributed on the spray head, which is conducive to spraying the lubricating oil evenly on the inside of the outer ring body and on the rolling elements, achieving a large-scale spray lubrication effect, which is conducive to achieving high-efficiency self-lubrication, ensuring stable and high-speed operation of the bearing, improving the stability and reliability of the bearing, and avoiding the problem of increased bearing wear caused by increased friction and increased bearing temperature.

[0017] 2. In the present invention, the mounting ring is fixed to the outer side of the inner ring body, and a number of mounting seats are distributed on the outer side of the mounting ring, which is convenient for providing a stable connection and installation function. The spring piece is connected and installed through the mounting seat, and cooperates with the rotating shaft to form a rotation connection. The elastic damping rod is installed at both ends of the mounting seat, and both ends of the elastic damping rod are provided with a rotating seat for connection and rotation. The outer wall of the elastic damping rod is provided with a spring member to form an elastic support, which is beneficial to provide a buffering, shock-absorbing and flexible support effect for the outer ring, avoiding the problem of inconvenience in use caused by excessive vibration amplitude during operation.

[0018] 3. In the present invention, the installation fasteners are distributed on the inner side of the side cover plate, and a connecting block is provided on the installation ring, which is conducive to fastening the connecting block on the limiting groove opened on the inner side of the inner support ring body, forming a stable fastening and fixing effect. At the same time, a limiting strip is provided on the installation fastener, and an inner support groove is provided inside, which facilitates the embedded installation of the inner support ring on the inner side of the inner support groove to form an inner support, thereby ensuring that the side cover plate is stably installed on the side of the outer ring, which is conducive to providing a certain protection for the lubricating oil storage box, and also facilitates quick disassembly, thereby improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a precision bearing for an industrial robot according to the present invention; Figure 2 This is a schematic structural diagram of a precision bearing for an industrial robot from another angle of the present invention; Figure 3 This is a schematic diagram of the exploded structure of a precision bearing for an industrial robot according to the present invention; Figure 4 This is a schematic structural diagram of a lubrication mechanism for a precision bearing for an industrial robot according to the present invention; Figure 5 for Figure 4 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic diagram of the partially exploded structure of a precision bearing for an industrial robot according to the present invention; Figure 7 for Figure 6 The enlarged structural diagram at B in the middle; Figure 8 This is a schematic diagram of the internal cross-sectional structure of a precision bearing for an industrial robot according to the present invention; Figure 9 for Figure 8 Enlarged structural diagram at point C in the middle.

[0020] In the picture: 1. Bearing mechanism; 101. Outer ring; 102. Side cover ring; 103. Inner ring; 104. Positioning ring groove; 105. Rolling element; 106. Inset groove; 2. Lubrication mechanism; 201. Outer ring; 202. Backing ring; 203. Lubricating oil storage box; 204. Feed port; 205. Sealing plug; 206. Connecting elbow; 207. Micro delivery pump; 208. Control box; 209. Connecting ring; 210. Right-angle delivery pipe; 211. Sprinkler head; 212. Atomizing nozzle; 213. Side cover; 214. Through hole; 215. Protective ring; 216. Inner support ring; 217. Limiting groove; 3. Elastic support mechanism; 301. Mounting ring; 302. Mounting seat; 303. Shrapnel; 304. Rotating shaft; 305. Elastic damping rod; 306. Rotating seat; 307. Spring member; 4. Mounting mechanism; 401. Mounting fastener; 402. Connecting block; 403. Limiting strip; 404. Inner support notch; 405. Inner support ring. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] Example 1: Figures 1-9 As shown, the present invention provides a technical solution: a precision bearing for an industrial robot, comprising a bearing mechanism 1, a lubricating mechanism 2 is provided on one side of the bearing mechanism 1, an elastic supporting mechanism 3 is provided on the inner side of the lubricating mechanism 2, a mounting mechanism 4 is provided on the inner side of the elastic supporting mechanism 3, the lubricating mechanism 2 comprises an outer ring 201, a lubricating oil storage box 203 is provided on the inner side of the outer ring 201, a connecting elbow 206 is fixedly connected to the inner side of the lubricating oil storage box 203, one end of the connecting elbow 206 is fixedly connected to a micro-delivery pump 207, the micro-delivery pump 207 is fixedly connected to a connecting ring 209, a plurality of right-angle delivery pipes 210 are evenly distributed on the connecting ring 209, a spray head 211 is fixedly connected to one end of the right-angle delivery pipe 210, and a plurality of atomizing nozzles 212 are evenly distributed in a ring shape on the spray head 211; The bearing mechanism 1 includes an outer ring body 101, and side cover rings 102 are provided on both sides of the outer ring body 101. Several right-angle delivery pipes 210 are all passed through the side of the side cover ring 102. Spray heads 211 are distributed in the gaps on the sides of the side cover ring 102. A gasket ring 202 is provided on the inner side of the outer ring 201. The gasket ring 202 is sleeved on the outer side of the lubricating oil storage box 203. A feed port 204 is opened on one side of the lubricating oil storage box 203. The inner side of the feed port 204 is connected to the inner side of the lubricating oil storage box 203. It is connected to a sealing plug 205, a control box 208 is installed on the side of the micro-delivery pump 207, a side cover plate 213 is installed on one side of the outer ring 201, a through hole 214 is opened through the side of the side cover plate 213, a protective ring 215 is provided on one side of the side cover plate 213, the inner side of the side cover ring 102 is connected to the inner ring body 103, an inner support ring body 216 is fixedly installed on one side of the inner ring body 103, and a plurality of limit grooves 217 are opened on the inner side of the inner support ring body 216.

[0023] In this embodiment, the outer ring body 101 is arranged on the outside to provide installation support, and a number of rolling bodies 105 are distributed at the connection gap in conjunction with the inner ring body 103 on the inside. The rolling bodies 105 can provide a rotation function, and the side cover rings 102 are symmetrically arranged on both sides of the outer ring body 101 to provide a sealing function, thereby ensuring the stable operation of the bearing.

[0024] The outer ring 201 is fixed to one side of the single side cover ring 102 to form a stable installation, and a support ring 202 is provided on the inner side to squeeze the outer side of the lubricating oil storage box 203 to facilitate the installation of the lubricating oil storage box 203, and at the same time provide a certain buffering and shock-absorbing effect to reduce the impact caused by vibration. The feed port 204 is opened on the lubricating oil storage box 203, which facilitates the addition of lubricating oil to the inside of the feed port 204. The sealing plug 205 can provide a closed blocking effect on the feed port 204 to prevent the lubricating liquid from leaking. It is fixedly connected to the inner side of the lubricating oil storage box 203 through the connecting elbow 206, and is connected at one end of the connecting elbow 206. The upper micro-delivery pump 207 is used to pump out the lubricating oil, and then it is evenly distributed and delivered to the right-angle delivery pipe 210 through the connecting ring 209. The lubricating liquid is then delivered to the spray head 211 through the right-angle delivery pipe 210 and sprayed out from the atomizing nozzle 212 distributed on the spray head 211, which is conducive to evenly spraying the lubricating oil on the inside of the outer ring body 101 and on the rolling body 105, achieving a large-scale spray lubrication effect, which is conducive to achieving high-efficiency self-lubrication, ensuring stable and high-speed operation of the bearing, improving the stability and reliability of the bearing, and avoiding the problem of increased bearing wear caused by increased friction and increased bearing temperature. It is connected to the side of the outer ring 201 through the side cover plate 213 to provide a sealing function. The through hole 214 facilitates the convenient disassembly of the sealing plug 205. The protective ring 215 is set on the side of the side cover plate 213, which is beneficial to improve the strength of the side cover plate 213 to ensure safety. The inner support ring body 216 is set in the inner ring body 103 and fixed to provide installation space for the lubricating oil storage box 203 in cooperation with the outer ring 201.

[0025] Example 2: Figure 3 and Figure 5 As shown, the elastic support mechanism 3 includes a mounting ring 301, and a plurality of mounting seats 302 are evenly distributed on the outer wall of the mounting ring 301. A spring piece 303 is provided in the middle of the mounting seat 302, and an elastic damping rod 305 is symmetrically provided on the outer side of the mounting seat 302. The elastic damping rod 305 is provided on the side of the spring piece 303, and a rotating shaft 304 is provided at both ends of the spring piece 303. A rotating seat 306 is provided at both ends of the elastic damping rod 305, and a spring member 307 is provided on the outer side of the elastic damping rod 305. The mounting mechanism 4 includes a mounting fastener 401, and a connecting block 402 is provided on the outer side of the mounting fastener 401. A limiting strip 403 is symmetrically provided on the inner side of the mounting fastener 401, and an inner support slot 404 is opened between the two limiting strips 403. The inner side of the inner support slot 404 is clamped with an inner support ring 405, and the inner support ring 405 is fitted and connected to the inner side of the mounting fastener 401.

[0026] In this embodiment, the mounting ring 301 is fixed to the outer side of the inner ring body 103, and a plurality of mounting seats 302 are distributed on the outer side of the mounting ring 301 to facilitate providing a stable connection and installation function. The spring piece 303 is connected and installed through the mounting seat 302, and cooperates with the rotating shaft 304 to form a rotating connection. The elastic damping rod 305 is installed at both ends of the mounting seat 302, and the two ends of the elastic damping rod 305 are provided with a rotating seat 306 for connection and rotation, and the outer wall of the elastic damping rod 305 is provided with a spring member 307 to form an elastic support, which is beneficial to provide a buffering, shock-absorbing and flexible support effect for the outer ring 201, avoiding the problem of inconvenience in use due to excessive vibration amplitude during operation.

[0027] By installing fasteners 401 distributed on the inner side of the side cover 213, and providing a connecting block 402 on the mounting ring 301, it is convenient to fasten the connecting block 402 on the limiting groove 217 opened on the inner side of the inner support ring body 216, forming a stable fastening and fixing effect. At the same time, a limiting strip 403 is provided on the mounting fastener 401, and an inner support groove 404 is provided inside, which facilitates the embedded installation of the inner support ring 405 on the inner side of the inner support groove 404 to form an inner support, thereby ensuring that the side cover 213 is stably installed on the side of the outer ring 201, which is beneficial to provide a certain protection for the lubricating oil storage box 203, and also facilitates quick disassembly, thereby improving the convenience of operation.

[0028] Example 3: Figure 2-Figure 4 、 Figure 8 and Figure 9 As shown, a positioning ring groove 104 is fixedly installed on one side of the side cover ring 102, and a number of rolling bodies 105 are evenly distributed in a ring shape between the two positioning ring grooves 104. An embedded groove 106 is opened on the outer wall of the inner ring body 103, and the rolling bodies 105 are evenly distributed on the inner side of the embedded groove 106. An annular groove opening is opened on the inner side of the outer ring body 101, and the rolling bodies 105 are evenly distributed on the inner side of the annular groove opening.

[0029] In this embodiment, a positioning ring groove 104 is installed on the side of the side cover ring 102 to facilitate positioning of the rolling body 105 to prevent it from falling off during the rotation process, thereby ensuring stable use. The same function is provided by the cooperation of the embedded groove 106 and the positioning ring groove 104, thereby further improving safety. The annular groove ensures that the rolling body 105 is also embedded on the inside, thereby improving the overall stability.

[0030] In the present invention, when the precision bearing for industrial robots is in use, the outer ring body 101 is first arranged on the outside to provide installation support, and a number of rolling elements 105 are distributed at the connection gap in cooperation with the inner ring body 103 on the inside. The rolling elements 105 can provide a rotation function, and the side cover rings 102 are symmetrically arranged on both sides of the outer ring body 101 to provide a sealing function, thereby ensuring the stable operation of the bearing. A positioning ring groove 104 is installed on the side of the side cover ring 102 to facilitate positioning of the rolling element 105 to prevent it from falling off during the rotation process, thereby ensuring the effect of stable use. The same function is provided by the cooperation of the embedded groove 106 and the positioning ring groove 104, thereby further improving safety. The annular groove ensures that the rolling element 105 is also embedded in the inside, thereby improving the overall stability.

[0031] The outer ring 201 is fixed to one side of the single side cover ring 102 to form a stable installation, and a support ring 202 is provided on the inner side to squeeze the outer side of the lubricating oil storage box 203 to facilitate the installation of the lubricating oil storage box 203, and at the same time provide a certain buffering and shock-absorbing effect to reduce the impact caused by vibration. The feed port 204 is opened on the lubricating oil storage box 203, which facilitates the addition of lubricating oil to the inside of the feed port 204. The sealing plug 205 can provide a closed blocking effect on the feed port 204 to prevent the lubricating liquid from leaking. It is fixedly connected to the inner side of the lubricating oil storage box 203 through the connecting elbow 206, and is connected at one end of the connecting elbow 206. The upper micro-delivery pump 207 is used to pump out the lubricating oil, and then it is evenly distributed and delivered to the right-angle delivery pipe 210 through the connecting ring 209. The lubricating liquid is then delivered to the spray head 211 through the right-angle delivery pipe 210 and sprayed out from the atomizing nozzle 212 distributed on the spray head 211, which is conducive to evenly spraying the lubricating oil on the inside of the outer ring body 101 and on the rolling body 105, achieving a large-scale spray lubrication effect, which is conducive to achieving high-efficiency self-lubrication, ensuring stable and high-speed operation of the bearing, improving the stability and reliability of the bearing, and avoiding the problem of increased bearing wear caused by increased friction and increased bearing temperature. It is connected to the side of the outer ring 201 through the side cover plate 213 to provide a sealing function. The through hole 214 facilitates the convenient disassembly of the sealing plug 205. The protective ring 215 is set on the side of the side cover plate 213, which is beneficial to improve the strength of the side cover plate 213 to ensure safety. The inner support ring body 216 is set in the inner ring body 103 and fixed to provide installation space for the lubricating oil storage box 203 in cooperation with the outer ring 201.

[0032] It is fixed to the outside of the inner ring body 103 through the mounting ring 301, and several mounting seats 302 are distributed on the outside of the mounting ring 301 to facilitate providing a stable connection and installation function. The spring piece 303 is connected and installed through the mounting seat 302, and cooperates with the rotating shaft 304 to form a rotating connection. The elastic damping rod 305 is installed at both ends of the mounting seat 302, and the two ends of the elastic damping rod 305 are provided with a rotating seat 306 for connection and rotation, and the outer wall of the elastic damping rod 305 is provided with a spring member 307 to form an elastic support, which is beneficial to provide a buffering, shock-absorbing and flexible support effect for the outer ring 201. By installing fasteners 401 distributed on the inner side of the side cover 213, and providing a connecting block 402 on the mounting ring 301, it is convenient to fasten the connecting block 402 on the limiting groove 217 opened on the inner side of the inner support ring body 216, forming a stable fastening and fixing effect. At the same time, a limiting strip 403 is provided on the mounting fastener 401, and an inner support groove 404 is provided inside, which facilitates the embedded installation of the inner support ring 405 on the inner side of the inner support groove 404 to form an inner support, thereby ensuring that the side cover 213 is stably installed on the side of the outer ring 201, which is beneficial to provide a certain protection for the lubricating oil storage box 203, and also facilitates quick disassembly, thereby improving the convenience of operation.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A precision bearing for an industrial robot, comprising a bearing mechanism (1), characterized in that: A lubricating mechanism (2) is provided on one side of the bearing mechanism (1), an elastic supporting mechanism (3) is provided on the inner side of the lubricating mechanism (2), a mounting mechanism (4) is provided on the inner side of the elastic supporting mechanism (3), the lubricating mechanism (2) comprises an outer ring (201), a lubricating oil storage box (203) is provided on the inner side of the outer ring (201), a connecting elbow (206) is fixedly connected to the inner side of the lubricating oil storage box (203), one end of the connecting elbow (206) is fixedly connected to a micro-delivery pump (207), a connecting ring (209) is fixedly connected to the micro-delivery pump (207), a plurality of right-angled delivery pipes (210) are evenly distributed on the connecting ring (209), one end of the right-angled delivery pipe (210) is fixedly connected to a spray head (211), and a plurality of atomizing nozzles (212) are evenly distributed in an annular shape on the spray head (211); The bearing mechanism (1) comprises an outer ring body (101), side cover rings (102) are provided on both sides of the outer ring body (101), a plurality of right-angle delivery pipes (210) are passed through the side surfaces of the side cover rings (102), and the spray heads (211) are distributed in the gaps on the sides of the side cover rings (102).

2. The precision bearing for industrial robots according to claim 1, characterized in that: The elastic support mechanism (3) comprises a mounting ring (301), a plurality of mounting seats (302) are evenly distributed on the outer wall of the mounting ring (301), a spring piece (303) is provided in the middle of the mounting seat (302), and elastic damping rods (305) are symmetrically provided on the outer sides of the mounting seat (302), and the elastic damping rods (305) are arranged on the sides of the spring piece (303).

3. The precision bearing for industrial robots according to claim 2, characterized in that: Rotating shafts (304) are provided at both ends of the elastic sheet (303), rotating seats (306) are provided at both ends of the elastic damping rod (305), and a spring member (307) is provided on the outside of the elastic damping rod (305).

4. The precision bearing for an industrial robot according to claim 1, wherein: The mounting mechanism (4) comprises a mounting fastener (401), a connecting block (402) is provided on the outside of the mounting fastener (401), and a limiting strip (403) is symmetrically provided on the inside of the mounting fastener (401).

5. The precision bearing for industrial robots according to claim 4, characterized in that: An inner support notch (404) is provided between the two limiting bars (403), an inner support ring (405) is clamped on the inner side of the inner support notch (404), and the inner support ring (405) is fitted and connected to the inner side of the mounting fastener (401).

6. The precision bearing for industrial robots according to claim 1, characterized in that: A support ring (202) is provided on the inner side of the outer ring (201), and the support ring (202) is sleeved on the outer side of the lubricating oil storage box (203). A feed port (204) is provided on one side of the lubricating oil storage box (203), and a sealing plug (205) is connected to the inner side of the feed port (204). A control box (208) is installed on the side of the micro-delivery pump (207).

7. The precision bearing for an industrial robot according to claim 6, characterized in that: A side cover plate (213) is installed on one side of the outer ring (201), a through hole (214) is provided through the side of the side cover plate (213), and a protective ring (215) is provided on one side of the side cover plate (213).

8. The precision bearing for an industrial robot according to claim 1, characterized in that: The inner side of the side cover ring (102) is connected to an inner ring body (103), an inner support ring body (216) is fixedly mounted on one side of the inner ring body (103), and a plurality of limiting grooves (217) are provided on the inner side of the inner support ring body (216).

9. The precision bearing for an industrial robot according to claim 8, characterized in that: A positioning ring groove (104) is fixedly mounted on one side of the side cover ring (102), and a plurality of rolling bodies (105) are evenly distributed in a ring shape between the two positioning ring grooves (104).

10. The precision bearing for industrial robots according to claim 9, characterized in that: The outer wall of the inner ring body (103) is provided with an embedded groove (106), and the rolling bodies (105) are evenly distributed on the inner side of the embedded groove (106). The inner side of the outer ring body (101) is provided with an annular groove opening, and the rolling bodies (105) are evenly distributed on the inner side of the annular groove opening.

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