High-load injection molding rod end knuckle bearing

Abstract

The invention provides a high-load injection molding rod end knuckle bearing, and relates to the technical field of knuckle bearings, the high-load injection molding rod end knuckle bearing comprises an injection molding rod end body, and the rod end body is composed of a bearing seat part, a combination upper part, a combination lower part and a foot part. The upper combination part is inserted into the lower combination part, and the distance between the upper combination part and the lower combination part is finely adjusted through an adjusting piece in the adjusting part, so that the length of the rod end body is adjusted. After adjustment, glue is injected through the glue injection channel arranged between the foot part and the combination upper part, secondary fastening is carried out on the structure after fine adjustment, and the load strength and stability of the rod end body are remarkably improved. And the load strength, the structural stability and the capability of adapting to complex working conditions of the knuckle bearing are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of joint bearings, in particular to a high-load injection molded rod end joint bearing. BACKGROUND

[0002] As a kind of key basic mechanical components, rod end joint bearings are widely used in connecting rods, push rods and supporting mechanisms in the fields of robots, precision instruments, engineering machinery, automobiles and the like, to connect components and transmit motion and force, while allowing certain angular swing. At present, the equipment applied by the related joint bearings may have unpredictable slight settlement of rod end bearing installation base during long-term operation, or the connection part may be worn due to long-term vibration and impact, which may cause micron or millimeter level deviation of relative position between equipment components, and the traditional solution is to compensate by replacing metal gaskets of different thicknesses or reprocessing connecting parts after shutdown, which is tedious, time-consuming and more dependent on the experience of operators, and the compensation accuracy is difficult to guarantee. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a high-load injection molded rod end joint bearing, which combines the structure of rod end body with adjustable length with injection reinforcement, to improve the load strength, structural stability and ability to adapt to complex working conditions of the joint bearing.

[0004] To solve the above technical problems, the technical scheme of the present application is as follows: A high-load injection molded rod end joint bearing, comprising a bearing body, comprising: an injection molded rod end body; The rod end body comprises a bearing seat part for mounting of a bearing body, a combination upper part integrally formed with the bearing seat part, a combination lower part, a foot part provided at the bottom of the combination lower part, an adjusting part provided on the surface of the combination lower part, an adjusting screw pair threadedly connected in the interior of the combination lower part, the combination upper part inserted in the interior of the adjusting screw pair, the bottom surface of the adjusting screw pair abutting against the interior bottom surface of the adjusting screw pair, the combination lower part integrally formed with the adjusting part, an adjusting member provided in the interior of the combination lower part and the adjusting part, the distance between the combination upper part and the combination lower part is adjusted by the adjusting member to adjust the overall length of the rod end body. The rod end body is provided with a glue injection channel between the foot part and the combination upper part, after the length of the rod end body is adjusted, the fine-adjusted rod end body is secondarily fastened by glue injection into the glue injection channel to improve the load strength of the rod end body.

[0005] Further, the bottom surface of the combination upper part is integrally formed with a plurality of first threaded pipes, the surface of the combination lower part is integrally formed with a plurality of insertion sleeves corresponding to the number of the first threaded pipes, the first threaded pipes are slidingly connected in the corresponding insertion sleeves, a first lead screw is inserted in a first insertion slot formed on the surface of the insertion sleeve, the first lead screw is threadedly connected with the corresponding first threaded pipe, the surface of the foot part is annularly arranged with a plurality of second lead screws, the second lead screws are inserted in corresponding second insertion slots formed on the surface of the foot part, the bottom surface of the combination lower part is formed with second threaded grooves corresponding to the second lead screws, the second lead screws are threadedly connected with the combination lower part through the corresponding second threaded grooves.

[0006] Further, the adjusting member comprises a first rectangular groove formed in the interior of the adjusting part and communicating with the interior of the combination lower part, a rack slidingly connected in the first rectangular groove formed in the interior of the adjusting part, an adjusting lead screw rotatably connected with a first circular hole formed on the surface of the adjusting part through a first bearing, the adjusting lead screw is threadedly connected in a first threaded groove formed in the interior of the rack, the surface of the adjusting screw pair is annularly arranged with teeth at a position close to the bottom, the teeth are integrally formed with the adjusting screw pair, the rack is meshingly connected with the teeth, and the teeth are slidingly connected with the rack along the axial direction of the adjusting screw pair.

[0007] Further, the bottom surface of the combination upper part is fixedly connected with a plurality of C-shaped blocks in an annular array, the upper surface of the combination lower part is provided with first constraint grooves corresponding to the C-shaped blocks, the surface of the C-shaped block is symmetrically provided with convex particles, the inner wall of the first constraint groove is symmetrically provided with second constraint grooves, the bottom surface of the combination upper part is fixedly connected with a skirt, and the skirt is slidably connected with the combination lower part.

[0008] Further, the glue injection channel comprises: A first channel is provided in the bottom surface of the combination upper part, the first channel is in communication with the inside of one of the first threaded pipes, and the first channel is used for injecting glue into the corresponding first threaded pipe and entering the gap between the combination upper part and the combination lower part through the first channel. A plurality of glue flow grooves are provided in the surface of the adjustment threaded pair in an annular array, the inside of the glue flow grooves is provided with first through holes, and the glue flowing out of the first channel flows to the gap between the adjustment threaded pair and the combination lower part through the glue flow grooves and the first through holes. A second channel is provided in the inside of the first constraint groove, the inner wall surface of the combination lower part is provided with an arc-shaped groove, the second channel and the inside of the arc-shaped groove are in communication, and the glue flowing out of the first channel flows to the inside of the combination lower part through the second channel and the arc-shaped groove. A third channel is provided in the inside of the second threaded groove, the diameter of the third channel is smaller than the diameter of the second threaded groove, and the third channel is in communication with the inside of the arc-shaped groove.

[0009] Further, a support ring piece is arranged between the combination upper part and the combination lower part, the C-shaped block is inserted into the corresponding avoiding hole provided in the surface of the support ring piece, the upper surface of the support ring piece abuts against the bottom surface of the combination upper part, and the bottom surface of the support ring piece abuts against the combination lower part. The inside of the combination lower part is provided with an elastic ring piece, the upper surface of the foot, the bottom surface of the adjustment threaded pair, and the inner wall surface of the combination lower part abut against the elastic ring piece, the elastic ring piece has elasticity, and when the foot is fixedly connected with the combination lower part through the second lead screw, the elastic ring piece is elastically deformed. When the rod end body is not adjusted in length for the first time, the adjustment threaded pair is not easy to rotate through the elastic deformation of the elastic ring piece, and the combination upper part and the combination lower part are kept stable through the arrangement of the support ring piece. Before glue injection, the support ring piece and the elastic ring piece are taken out from the inside of the rod end body.

[0010] Further, the upper surface of the foot is fixedly connected with a combination claw, which is located inside the elastic ring piece.

[0011] Further, the number of the first threaded pipes, the insertion sleeves and the first lead screws is at least three groups, and at least two groups are symmetric about the central axis of the combination lower part. The number of the second lead screws is at least four, and at least two of the second lead screws are symmetric about the central axis of the combination lower part.

[0012] The above scheme of the present application at least includes the following beneficial effects: The above scheme of the present application adjusts the distance between the combination upper part and the combination lower part through the adjusting piece, so that the overall length of the rod end body is adjustable, so as to effectively release or redistribute the internal stress caused by aging, thermal expansion and the like, thereby improving the applicability and service life of the joint bearing. The glue is injected through the glue injection channel for secondary fastening, the glue fills the gaps between the parts, and forms a uniform reinforcing layer after solidification, so as to enhance the overall load capacity and anti-loosening capacity of the rod end body. Through the cooperation of the C-shaped block, the convex particle, the first constraint groove and the second constraint groove, and the sealing design of the apron edge, the connection stability and the anti-twisting capacity between the combination upper part and the combination lower part are improved while facilitating assembly and adjustment. Through the design of the multiple channels such as the first channel, the glue flow groove, the second channel, the arc-shaped groove and the third channel in the glue injection channel, it is ensured that the glue can uniformly penetrate into the internal cavity of the rod end body, the cavity generated after the glue solidifies is reduced, and the gluing strength and structural consistency are improved. The rod end body is injection molded, which facilitates improving manufacturing efficiency, reducing cost and being suitable for batch production. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure provided by the present application.

[0014] Figure 2 is a schematic diagram of the first lead screw in the present application.

[0015] Figure 3 is a schematic diagram of the second lead screw in the present application.

[0016] Figure 4 is a schematic diagram of the adjusting threaded pair in the present application.

[0017] Figure 5 is a schematic diagram of the adjusting lead screw in the present application.

[0018] Figure 6 is a schematic diagram of the convex particle in the present application.

[0019] Figure 7is a schematic view of the first channel in the present application.

[0020] Figure 8 is a schematic view of the C-shaped block in the present application.

[0021] Figure 9 is a schematic view of the present application Figure 4 is an enlarged view of A.

[0022] Figure 10 is an enlarged view of B in the present application Figure 8 .

[0023] In the figure: 101, bearing body; 201, bearing seat part; 202, upper combined part; 203, lower combined part; 204, foot part; 205, adjusting part; 206, insertion sleeve; 207, first threaded pipe; 208, first lead screw; 209, second lead screw; 210, adjusting threaded pair; 211, tooth; 212, rack; 213, adjusting lead screw; 214, glue flow groove; 215, first through hole; 216, C-shaped block; 217, convex particle; 218, first constraint groove; 219, second constraint groove; 220, apron edge; 222, second threaded groove; 301, first channel; 302, second channel; 303, arc-shaped groove; 304, third channel; 305, support ring piece; 307, combined claw; 308, elastic ring piece. DETAILED DESCRIPTION

[0024] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0025] As Figures 1 to 10 shown in the drawings, an embodiment of the present application proposes a high-load injection-molded rod-end joint bearing, comprising a bearing body 101, comprising: an injection-molded rod-end body; The rod end body comprises a bearing seat part 201 for mounting the bearing body 101, a combined upper part 202, a combined lower part 203, and a foot part 204, the combined upper part 202 is integrally formed with the bearing seat part 201, the combined upper part 202 is inserted in the interior of the combined lower part 203, the bottom of the combined lower part 203 is provided with the foot part 204, the surface of the combined lower part 203 is provided with an adjusting part 205, the interior of the combined lower part 203 is threadedly connected with an adjusting threaded pair 210, the combined upper part 202 is inserted in the interior of the adjusting threaded pair 210, the bottom surface of the adjusting threaded pair 210 abuts against the interior bottom surface of the adjusting threaded pair 210, the combined lower part 203 is integrally formed with the adjusting part 205, the interior of the combined lower part 203 and the adjusting part 205 is provided with an adjusting piece, the distance between the combined upper part 202 and the combined lower part 203 is adjusted through the adjusting piece, so as to adjust the overall length of the rod end body. The rod end body is provided with a glue injection channel between the foot part 204 and the combined upper part 202, after the length of the rod end body is adjusted, the rod end body after fine adjustment is secondarily fastened by injecting glue into the glue injection channel, so as to improve the load strength of the rod end body.

[0026] In the embodiment of the application, in the use process, the combined upper part 202 and the combined lower part 203 are fixed, before the first fine adjustment, the length of the rod end body is a fixed length, the bearing body 101 and the foot part 204 are respectively installed at the corresponding rod end or driving shaft end, at this time, it is one of the use states of the application. When the connected rod body or shaft body of the application generates a larger internal stress due to deformation, rod body bending or thermal expansion after long-term use, the length of the rod end body is adjusted to release or redistribute the internal stress, that is, the position of the adjusting threaded pair 210 in the interior of the combined lower part 203 is adjusted through the adjusting piece in the interior of the combined lower part 203 and the adjusting part 205, and then the distance between the combined upper part 202 and the combined lower part 203 is adjusted, and then the overall length of the rod end body is adjusted, in order to further maintain the length of the rod end body after adjustment and its load capacity, the adjusted rod end body is secondarily fastened through the glue injection channel reserved in the interior of the rod end body, so as to enhance the stability and load capacity of the rod end body.

[0027] A plurality of first threaded pipes 207 are integrally formed on the bottom surface of the upper part 202, a plurality of insertion sleeves 206 corresponding in number to the first threaded pipes 207 are integrally formed on the surface of the lower part 203, the first threaded pipes 207 are slidingly connected in the corresponding insertion sleeves 206, a first lead screw 208 is inserted in a first slot formed on the surface of the insertion sleeve 206, the first lead screw 208 is threadedly connected with the corresponding first threaded pipe 207, a plurality of second lead screws 209 are annularly arranged on the surface of the foot part 204, the second lead screws 209 are inserted in corresponding second slots formed on the surface of the foot part 204, a second threaded groove 222 corresponding to the second lead screw 209 is formed on the bottom surface of the lower part 203, and the second lead screw 209 is threadedly connected with the lower part 203 through the corresponding second threaded groove 222.

[0028] In the embodiment, the connection between the upper part 202 and the lower part 203 is achieved by inserting the upper part 202 into the adjusting threaded pair 210 inside the lower part 203, inserting the first threaded pipe 207 into the corresponding insertion sleeve 206, inserting the corresponding first lead screw 208 into the insertion sleeve 206 and threadedly connecting it with the first threaded pipe 207, and threadedly connecting the adjusting threaded pair 210 with the inside of the lower part 203. Before the first fine adjustment, the adjusting threaded pair 210 can move a certain distance upward or downward along the axial direction of the lower part 203, thereby facilitating the length adjustment of the rod end body. In the embodiment, after the upper part 202 is fixed with the lower part 203 through the cooperation of the first lead screw 208, the first threaded pipe 207 and the insertion sleeve 206, and before the first fine adjustment by the fine adjustment member, the position of the adjusting threaded pair 210 is the initial position. The inside bottom surface of the adjusting threaded pair 210 at the initial position abuts against the upper part 202, so as to keep the relative position of the upper part 202 and the lower part 203 stable.

[0029] The adjusting member comprises a first rectangular slot formed in the inside of the adjusting part 205 and communicating with the inside of the lower part 203, a rack 212 slidingly connected in the first rectangular slot in the inside of the adjusting part 205, an adjusting lead screw 213 rotatingly connected with the first shaft bearing in a first circular hole formed on the surface of the adjusting part 205, the adjusting lead screw 213 threadedly connected in a first threaded slot in the inside of the rack 212, and a plurality of teeth 211 annularly arranged on the surface of the adjusting threaded pair 210 close to the bottom position, the teeth 211 integrally formed with the adjusting threaded pair 210, the rack 212 meshingly connected with the teeth 211, and the teeth 211 slidingly connected with the rack 212 along the axial direction of the adjusting threaded pair 210.

[0030] In the embodiment of the present application, when adjusting the adjusting screw pair 210, first, all the first lead screws 208 are taken out from the inside of the insertion sleeve 206, and then the adjusting lead screw 213 is rotated to move the rack 212 in the first rectangular groove, in the process, the rack 212 drives the adjusting screw pair 210 to rotate, and the rotation of the adjusting screw pair 210 moves the adjusting screw pair 210 along the axial direction of the combined lower part 203 through the thread cooperation between the adjusting screw pair 210 and the combined lower part 203, that is, the teeth 211 slide along the tooth groove of the rack 212, and after the adjustment is completed, the distance between the combined lower part 203 and the combined upper part 202 is kept stable through the self-locking force between the threads of the rack 212 and the adjusting lead screw 213 and the self-locking force between the threads of the adjusting screw pair 210 and the combined lower part 203, and then the first lead screws 208 are reinstalled into the inside of the corresponding insertion sleeve 206 and the first threaded tube 207 to fix the combined lower part 203 and the combined upper part 202 after adjustment, at this time, the fine adjustment action is completed.

[0031] The bottom surface of the combined upper part 202 is fixedly connected with a plurality of C-shaped blocks 216 in an annular array, the upper surface of the combined lower part 203 is provided with first constraint grooves 218 corresponding to the C-shaped blocks 216, the surface of the C-shaped block 216 is symmetrically provided with convex particles 217, the inner wall of the first constraint groove 218 is symmetrically provided with second constraint grooves 219, the bottom surface of the combined upper part 202 is fixedly connected with a skirt 220, and the skirt 220 is in sliding connection with the combined lower part 203.

[0032] In the embodiment of the present application, in the process of inserting the combined upper part 202 into the inside of the combined lower part 203, the C-shaped block 216 is inserted into the inside of the first constraint groove 218, the convex particles 217 are extruded by the inner wall of the first constraint groove 218 to force the two convex parts of the C-shaped block 216 to deform in the direction of approaching each other, until the convex particles 217 slide into the inside of the second constraint groove 219, the second constraint groove 219 is provided to extend along the axial direction of the first constraint groove 218, and the closer to the opening of the first constraint groove 218, the shallower the depth of the second constraint groove 219 along the radial direction of the first constraint groove 218, when the adjusting screw pair 210 is located at the initial position, the convex particles 217 are located at the position close to the middle part in the inside of the second constraint groove 219; When the adjusting screw pair 210 moves downward, the distance between the upper surface of the combined lower part 203 and the bottom surface of the combined upper part 202 increases, the convex particles 217 move upward in the inside of the second constraint groove 219, so that the two convex parts of the C-shaped block 216 move in the direction of approaching each other, thereby increasing the friction force between the convex particles 217 and the inner wall of the second constraint groove 219 to further enhance the stability of the relative position between the combined upper part 202 and the combined lower part 203; When the adjusting screw pair 210 moves upward, the distance between the upper surface of the combination lower part 203 and the bottom surface of the combination upper part 202 decreases, the convex particles 217 move downward inside the second constraint groove 219, so that the two convex parts of the C-shaped block 216 move in the direction away from each other, and the gap between the two convex parts of the C-shaped block 216 increases, facilitating the passing of the glue, so as to further enhance the stability of the relative position between the combination upper part 202 and the combination lower part 203; The apron edge 220 always slides on the surface of the combination lower part 203 during the adjusting process, so as to reduce the overflow of the glue during the glue injection process.

[0033] The glue injection channel comprises: The first channel 301 is arranged on the bottom surface of the combination upper part 202, the first channel 301 is in communication with the inside of one of the first screw pipes 207, and is used for injecting glue into the inside of the corresponding first screw pipe 207 and entering the gap between the combination upper part 202 and the combination lower part 203 through the first channel 301; The glue flow grooves 214 are arranged in a ring array on the surface of the adjusting screw pair 210, the inside of each of the glue flow grooves 214 is provided with a first through hole 215, and the glue flowing out of the first channel 301 flows to the gap between the adjusting screw pair 210 and the combination lower part 203 through the glue flow groove 214 and the first through hole 215; The second channel 302 is arranged in the inside of the first constraint groove 218, the inner wall surface of the combination lower part 203 is provided with an arc-shaped groove 303, the second channel 302 and the arc-shaped groove 303 are in communication with each other, and the glue flowing out of the first channel 301 flows to the inside of the combination lower part 203 through the second channel 302 and the arc-shaped groove 303; The third channel 304 is arranged in the inside of the second screw groove 222, the diameter of the third channel 304 is smaller than that of the second screw groove 222, and the third channel 304 is in communication with the inside of the arc-shaped groove 303.

[0034] In the embodiment of the present application, before the glue injection, the first screw pipe 207 corresponding to the first channel 301 is taken out from the inside of the inserting sleeve 206, the glue injection pipe is arranged in the first inserting groove of the inserting sleeve 206, an elastic ring can be arranged at the glue outlet of the glue injection pipe, so that the part of the glue injection pipe inserted into the first inserting groove is relatively sealed with the outside, during the glue injection process, the glue enters the inside of the first screw pipe 207 along the inner wall of the inserting sleeve 206, and flows into the gap between the combination upper part 202 and the combination lower part 203 from the first channel 301; The glue flowing out from the first channel 301 passes through the glue flow groove 214 and the first through hole 215 to enter the area at the bottom of the adjusting screw pair 210 inside the combination lower part 203, and fills the internal thread on the inner wall of the combination lower part 203 inside the glue flow groove 214 and the gap between the combination lower part 203 and the adjusting screw pair 210, so that the bonding force between the combination lower part 203 and the adjusting screw pair 210 is enhanced after the part of the glue solidifies; The glue flowing out from the first channel 301 passes through the gap between the two protrusions of the C-shaped block 216 to enter the first constraint groove 218 inside, and flows along the second channel 302 to the arc-shaped groove 303, and then flows from the arc-shaped groove 303 to the position close to the bottom of the adjusting screw pair 210 inside the combination lower part 203, so that the bonding force between the combination lower part 203 and the adjusting screw pair 210 is enhanced after the part of the glue solidifies; The glue flowing out from the first channel 301 enters the gap between the part of the combination upper part 202 inside the adjusting screw pair 210 and the adjusting screw pair 210, so that the bonding force between the combination upper part 202 and the adjusting screw pair 210 is enhanced after the part of the glue solidifies; The part of the glue entering the arc-shaped groove 303 flows through the third channel 304 to the inside of the second screw groove 222, and fills the gap between the second screw rod 209 and the second screw groove 222, so that the second screw rod 209 is not easy to back off inside the second screw groove 222, and the connection between the foot part 204 and the combination lower part 203 is stable.

[0035] The support ring piece 305 is arranged between the combination upper part 202 and the combination lower part 203, the C-shaped block 216 is inserted into the corresponding avoiding hole on the surface of the support ring piece 305, the upper surface of the support ring piece 305 abuts against the bottom surface of the combination upper part 202, and the bottom surface of the support ring piece 305 abuts against the combination lower part 203; The elastic ring piece 308 is arranged inside the combination lower part 203, the upper surface of the foot part 204, the bottom surface of the adjusting screw pair 210, and the inner wall surface of the combination lower part 203 all abut against the elastic ring piece 308, the elastic ring piece 308 has elasticity, and when the foot part 204 is fixedly connected with the combination lower part 203 through the second screw rod 209, the elastic ring piece 308 is elastically deformed; When the rod end body is not adjusted in length for the first time, the adjusting screw pair 210 is not easy to rotate through the elastic deformation of the elastic ring piece 308, and the combination upper part 202 and the combination lower part 203 are kept stable through the arrangement of the support ring piece 305; Before glue injection, the support ring piece 305 and the elastic ring piece 308 are taken out from the inside of the rod end body.

[0036] In the embodiment of the present application, when the adjusting screw pair 210 is located at the initial position and the first fine adjustment is not performed, the gap between the upper surface of the combined upper portion 202 and the bottom surface of the combined lower portion 203 is eliminated by the supporting ring piece 305, so that the overall strength between the combined upper portion 202 and the combined lower portion 203 is improved. During the process that the foot portion 204 and the combined lower portion 203 are fixed by the second screw rod 209, the deformation of the elastic ring piece 308 makes the adjusting screw pair 210 and the elastic ring piece 308 have a larger friction force, which further makes the adjusting screw pair 210 not easy to rotate, thereby improving the stability of the rod end body after fine adjustment. Before the glue injection, the supporting ring piece 305 and the elastic ring piece 308 are taken out from the inside of the rod end body, so that the glue has more accommodation space.

[0037] The upper surface of the foot portion 204 is fixedly connected with the combined claw 307, and the combined claw 307 is located in the inside of the elastic ring piece 308.

[0038] In the embodiment of the present application, the combined claw 307 is arranged to make the glue in the area below the adjusting screw pair 210 in the inside of the combined lower portion 203 solidify, so that the foot portion 204 enhances the binding force with the solidified glue through the combined claw 307.

[0039] The number of the first threaded pipes 207, the plug-in sleeves 206 and the first screw rods 208 is at least three groups, and at least two groups are symmetrical about the center axis of the combined lower portion 203. The number of the second screw rods 209 is at least four, and at least two second screw rods 209 are symmetrical about the center axis of the combined lower portion 203.

[0040] In the embodiment of the present application, before the glue injection, one of the first screw rods 208 is disassembled, the inside of the first threaded pipe 207 corresponding to the first screw rod 208 is connected with the inside of the first channel 301, and the first screw rods 208 symmetrical about the center axis of the combined lower portion 203 are reserved, so that the combined lower portion 203 and the combined upper portion 202 are kept relatively stable by the combination of the first screw rod 208 and the corresponding first threaded pipe 207 during the glue injection. The first screw rods 208 arranged symmetrically make the combined lower portion 203 and the foot portion 204 keep relatively uniform stress during the glue injection. During the glue injection, two of the second screw rods 209 are disassembled, and at least one pair of the second screw rods 209 symmetrical about the center axis of the combined lower portion 203 are reserved, so that the combined lower portion 203 and the foot portion 204 keep relatively uniform stress during the glue injection. When injecting glue, glue is continuously injected into the inside of the insertion sleeve 206 until glue overflows from the second screw grooves 222 corresponding to the two second lead screws 209 that have been disassembled. During this process, the two second screw grooves 222 function to balance the air pressure inside the glue injection channel. In order to further reduce the cavity formed by the glue in the glue injection channel inside the rod end body after the glue solidifies, after the glue overflows from the second screw grooves 222, the glue injection is continuously injected and one of the second screw grooves 222 is intermittently blocked to change the flow direction of the glue inside the glue injection channel, thereby reducing the area of the glue injection channel that is not filled with glue, and further enhancing the strength of the glue injection channel after the glue solidifies and combines with the rod end body. After the glue injection is completed, the first lead screw 208 is first installed into the insertion sleeve 206 and the first screw tube 207 for glue injection, and a portion of the glue is squeezed out through the second screw grooves 222. Then, the second lead screws 209 are respectively installed into the two corresponding second screw grooves 222, so that the joint bearing can be used after the glue solidifies.

[0041] It should be noted that the foot 204 can be provided with an internal thread or an external thread. In the present embodiment, as shown in the accompanying drawings, the foot 204 is provided with an internal thread, which is convenient for users to assemble the corresponding foot 204 according to needs. Figure 2

[0042] The above is the preferred embodiment of the present application. It should be noted that for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.​

Claims

1. A high load injection molded rod end bearing comprising a bearing body (101), characterized in that, The utility model relates to a kind of rod end body and rod end body, including: The rod end body includes: bearing seat part (201), combination upper part (202), combination lower part (203) and foot (204), the bearing seat part (201) is used for the installation of bearing body (101);The combination upper part (202) is integrally formed with the bearing seat part (201), the combination upper part (202) is inserted in the inside of the combination lower part (203), the bottom of the combination lower part (203) is provided with foot (204), the surface of the combination lower part (203) is provided with adjusting part (205), the inside of the combination lower part (203) is screw-threaded with adjusting screw pair (210), the combination upper part (202) is inserted in the inside of the adjusting screw pair (210), and the bottom surface of the adjusting screw pair (210) is in abutment with the inside bottom surface of the adjusting screw pair (210), the combination lower part (203) is integrally formed with the adjusting part (205), the inside of the combination lower part (203) and the adjusting part (205) is provided with adjusting piece, the distance between the combination upper part (202) and the combination lower part (203) is adjusted by the adjusting piece, to adjust the overall length of the rod end body; Glue channel is provided between the foot (204) and the combination upper part (202) of the rod end body, after the length of the rod end body is adjusted, the rod end body after fine adjustment is secondarily fastened by injecting glue into the glue channel, to improve the load strength of the rod end body. The bottom surface of the combination upper part (202) is integrally formed with a plurality of first threaded pipes (207), the surface of the combination lower part (203) is integrally formed with a plurality of insertion sleeves (206) corresponding in number to the first threaded pipes (207), the first threaded pipes (207) are slidingly connected in the corresponding insertion sleeves (206), a first screw rod (208) is inserted in a first insertion slot formed in the surface of the insertion sleeve (206), the first screw rod (208) is screw-threadedly connected with the corresponding first threaded pipe (207), a plurality of second screw rods (209) are annularly arranged on the surface of the foot (204), the second screw rods (209) are inserted in corresponding second insertion slots formed in the surface of the foot (204), a second threaded groove (222) corresponding to the second screw rod (209) is formed in the bottom surface of the combination lower part (203), and the second screw rod (209) is screw-threadedly connected with the combination lower part (203) through the corresponding second threaded groove (222).

2. The high load injection molded rod end bearing of claim 1, wherein, ​ 3. A high load injection molded rod end bearing according to claim 2, characterized in that The adjusting part includes: the first rectangular groove is opened in the inside of the adjusting part (205) and is communicated with the inside of the combined lower part (203), the rack (212) is slidably connected in the first rectangular groove in the inside of the adjusting part (205), the adjusting screw rod (213) is rotatably connected in the first circular hole on the surface of the adjusting part (205) through the first bearing, the adjusting screw rod (213) is threadedly connected in the first threaded groove in the inside of the rack (212), the teeth (211) are arranged in an annular array on the surface of the adjusting screw pair (210) near the bottom position, the teeth (211) are integrally formed with the adjusting screw pair (210), the rack (212) is meshingly connected with the teeth (211), and the teeth (211) are slidably connected with the rack (212) along the axial direction of the adjusting screw pair (210).

4. The high load injection molded rod end bearing of claim 3, wherein, The bottom surface of the combined upper part (202) is fixedly connected with a plurality of C-shaped blocks (216) in an annular array, the upper surface of the combined lower part (203) is provided with the first constraint groove (218) corresponding to the C-shaped block (216), the surface of the C-shaped block (216) is symmetrically provided with the convex particles (217), the inner wall of the first constraint groove (218) is symmetrically provided with the second constraint groove (219), and the bottom surface of the combined upper part (202) is fixedly connected with the apron edge (220) which is slidably connected with the combined lower part (203).

5. A high load injection molded rod end bearing according to claim 4, characterized in that The glue injection channel includes: The first channel (301) is opened in the bottom surface of the combined upper part (202), the first channel (301) is communicated with the inside of one of the first threaded pipes (207), and the first channel (301) is used for injecting glue into the inside of the corresponding first threaded pipe (207) and entering the gap between the combined upper part (202) and the combined lower part (203) through the first channel (301); The glue flow grooves (214) are arranged in an annular array on the surface of the adjusting screw pair (210), the inside of each glue flow groove (214) is provided with the first through hole (215), and the glue flowing out of the first channel (301) flows to the gap between the adjusting screw pair (210) and the combined lower part (203) through the glue flow groove (214) and the first through hole (215); The second channel (302) is opened in the inside of the first constraint groove (218), the inner wall surface of the combined lower part (203) is provided with the arc-shaped groove (303), the inside of the second channel (302) is communicated with the inside of the arc-shaped groove (303), and the glue flowing out of the first channel (301) flows to the inside of the combined lower part (203) through the second channel (302) and the arc-shaped groove (303); The third channel (304) is opened in the inside of the second threaded groove (222), the diameter of the third channel (304) is smaller than that of the second threaded groove (222), and the third channel (304) is communicated with the inside of the arc-shaped groove (303).

6. A high load injection molded rod end bearing according to claim 5, characterized in that Supporting ring pieces (305) are arranged between the combination upper part (202) and the combination lower part (203), the C-shaped blocks (216) are inserted into corresponding avoiding holes on surfaces of the supporting ring pieces (305), the upper surface of the supporting ring piece (305) is in abutment with the bottom surface of the combination upper part (202), and the bottom surface of the supporting ring piece (305) is in abutment with the combination lower part (203); Elastic ring pieces (308) are arranged in the combination lower part (203), the upper surface of the foot part (204), the bottom surface of the adjusting threaded pair (210) and the inner wall surface of the combination lower part (203) are in abutment with the elastic ring pieces (308), the elastic ring pieces (308) are elastic, and when the foot part (204) is fixedly connected with the combination lower part (203) through the second lead screw (209), the elastic ring pieces (308) are elastically deformed; When the rod end body is not adjusted in length for the first time, the elastic ring pieces (308) are elastically deformed, so that the adjusting threaded pair (210) is not easy to rotate, and the combination upper part (202) and the combination lower part (203) are kept stable through the arrangement of the supporting ring pieces (305); Before glue injection, the supporting ring pieces (305) and the elastic ring pieces (308) are taken out from the inside of the rod end body.

7. A high load injection molded rod end bearing according to claim 6, characterized in that The upper surface of the foot part (204) is fixedly connected with combination claws (307), and the combination claws (307) are located in the inside of the elastic ring pieces (308).

8. The high load injection molded rod end bearing of claim 6, wherein, The number of the first threaded pipes (207), the inserting sleeves (206) and the first lead screws (208) is at least three groups, and at least two groups are symmetrical about the central axis of the combination lower part (203); The number of the second lead screws (209) is at least four, and at least two of the second lead screws (209) are symmetrical about the central axis of the combination lower part (203).

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