CN215409769U - Concentric self-lubricating rod end joint bearing - Google Patents
Concentric self-lubricating rod end joint bearing Download PDFInfo
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- CN215409769U CN215409769U CN202120877565.3U CN202120877565U CN215409769U CN 215409769 U CN215409769 U CN 215409769U CN 202120877565 U CN202120877565 U CN 202120877565U CN 215409769 U CN215409769 U CN 215409769U
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Abstract
The utility model discloses a concentric self-lubricating rod end joint bearing, which comprises: the rod end body is provided with an outer ring body, an inner ring body is arranged in the outer ring body, and a self-lubricating layer is arranged between the inner ring body and the outer ring body; the outer ring body comprises a first ring opening and a second ring opening along the axial direction, and a groove is formed in the first ring opening; wherein, the outer ring body and the inner ring body are concentrically arranged; the outer wall of the self-lubricating layer is attached to the inner wall of the outer ring body, and the inner wall of the self-lubricating layer is attached to the outer wall of the inner ring body. The self-lubricating layer is additionally arranged between the inner ring body and the outer ring body to realize self-lubrication of the rod end oscillating bearing, the groove is utilized to enable the inner ring body to be smoothly arranged into the outer ring body, the inner ring body and the outer ring body are concentrically arranged, the inner ring body is effectively prevented from being separated from the outer ring body in the working process of the oscillating bearing, the locking is firm, the assembling is convenient, and the excellent stability is particularly realized in the high-speed operation process.
Description
Technical Field
The utility model relates to the technical field of joint bearings, in particular to a concentric self-lubricating rod end joint bearing.
Background
The joint bearing is a spherical sliding bearing, the sliding contact surface of which is an inner spherical surface and an outer spherical surface, and can rotate and swing at any angle during movement.
The joint bearing mainly comprises an inner ring body with an outer spherical surface and an outer ring body with an inner spherical surface. The joint bearing is generally used for swinging motion (namely angular motion) with low speed, and can also perform tilting motion (namely aligning motion) within a certain angle range because the sliding surface is spherical, and can still normally work when the concentricity of the supporting shaft and the shaft shell hole is large.
The bearing needs to be frequently oiled to ensure good lubricity, large irreversible damage to workpieces or parts caused by excessive friction is avoided, even if the bearing is frequently oiled and lubricated, the phenomenon that the lubricity of the bearing is greatly reduced in a long-term process is avoided, and the operation of frequently oiling for a long time is very complicated, so that the self-lubricating bearing is provided.
However, the self-lubricating bearing on the market at present has certain defects, for example, the friction force is reduced fundamentally by adopting materials of all parts, but the stability of the bearing is inevitably influenced to a certain degree, the inner ring body is easy to be separated from the shaft hole part, and the connection stability of the whole bearing is reduced to a certain extent.
For example, the Chinese patent with the publication number of 'CN 201396372Y' discloses a thin-wall inlaid self-lubricating bearing, which comprises a plate, wherein blind holes are uniformly distributed on the working surface of the plate, and solid lubricants are filled in the blind holes. The solid lubricant is directly fixed in the blind hole to form an embedded structure, non-ferrous metal materials such as tin bronze powder or dendritic copper powder are not needed, the solid lubricant can be fixed in the blind hole after a series of sintering processes, but the material of the self-lubricating bearing can meet the lubricating requirement, the lubricating significance is not large, the scheme can easily cause workpiece slippage, and particularly, the phenomenon that an inner ring body is separated from an outer ring body easily occurs in the high-speed running process of a rod end knuckle bearing, so that the bearing fails.
Disclosure of Invention
Aiming at the problems that sliding friction force is reduced by changing materials in a self-lubricating type rod end joint bearing in the prior art, but the change of the materials affects the running stability of the bearing, and the inner ring body is easy to separate from the outer ring body to cause the joint bearing to lose efficacy when the joint bearing is in a high-speed motion state, the utility model provides the concentric type self-lubricating rod end joint bearing.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a concentric self-lubricating rod end knuckle bearing comprising: the rod end body is provided with an outer ring body, an inner ring body is arranged in the outer ring body, and a self-lubricating layer is arranged between the inner ring body and the outer ring body; the outer ring body comprises a first ring opening and a second ring opening along the axial direction, and a groove is formed in the first ring opening; wherein, the outer ring body and the inner ring body are concentrically arranged; the outer wall of the self-lubricating layer is attached to the inner wall of the outer ring body, and the inner wall of the self-lubricating layer is attached to the outer wall of the inner ring body. The axial height of the inner ring body is smaller than the radial length, so that after the inner ring body is transversely installed in the outer ring body, the inner ring body is rotated to ensure that the inner ring body is surrounded and limited by the first ring opening and the second ring opening of the outer ring body in the axial direction, and the rod end oscillating bearing is ensured not to be separated from the ring openings at two sides of the outer ring body in the working process. The self-lubricating layer is an injection molding, is injected between the inner ring body and the outer ring body from the groove and is cooled and molded, the space between the inner ring body and the outer ring body can be completely filled, and self-lubricating sliding friction between the inner ring body and the outer ring body is realized in the operation process of the concentric rod end joint bearing. When reducing sliding friction through the self-lubricating layer, utilize the concentric characteristics that set up of inner race body and outer race body, guarantee that self-lubricating layer injection moulding back is all concentric with inner race body and outer race body, provide good structural foundation for rod end joint bearing's even running, avoid leading to self-lubricating layer certain region stress concentration by rapid wear because of outer race body, self-lubricating layer and inner race body three parts decentraction to reduce joint bearing's operating stability and life's problem. Particularly during high-speed operation, the concentric rod end joint bearing provided by the application can keep silent and stable operation.
Preferably, the first ring opening is further provided with a lock opening portion, and the inner ring body is attached to the side edge of the lock opening portion close to the second ring opening. In the working process of the rod end joint bearing, when the inner ring body is subjected to outward tensile force and tends to move outwards, the lock opening part on the first ring opening can avoid the forward separation of the inner ring body and the self-lubricating layer; the inner surface of the outer ring body is in a wrapping arc shape, so that the inner ring body can be limited in the outer ring body. After the inner ring body is arranged in the outer ring body, under the position that the axis of the inner ring body coincides with the axis of the outer ring body, the front part of the inner ring body is close to the side edge of the second ring opening in a fitting mode, namely, the inner side edge of the fitting mode is fitted, the front and back gaps between the inner ring body and the outer ring body are effectively reduced through the design, the assembly compactness of the inner ring body and the outer ring body is improved, meanwhile, the phenomenon that a fusant overflows from the non-groove position of the first ring opening in the injection molding process of the self-lubricating layer can be avoided, and a foundation is laid for complete filling between the inner ring body and the outer ring body after the self-lubricating layer is formed.
Preferably, the grooves are arranged in a central symmetry manner with a central axis of the outer ring body as an axis. The recess is central symmetry structure and arranges on the first circle mouth of outer lane body, whole interior when can guaranteeing to mould plastics self-lubricating layer, the even feeding of cavity between the outer lane body to the even packing of material is annotated in the realization, especially in the pressurize step in the process of moulding plastics, along with the stability of pressure, the density of annotating the material can promote slightly, the density that whole self-lubricating layer can be guaranteed to the mode of evenly injecting into this moment is even, lay the basis for the supplementary lubrication work after the shaping, it is reliable to obtain the quality, the even self-lubricating layer of density.
Preferably, the self-lubricating layer is of a sleeve structure and comprises lug parts filled in the grooves. The self-lubricating layer extends from the first ring opening to the second ring opening, and the groove in the first ring opening is filled through the lug attachment portion. When the inner ring body is installed into the outer ring body from the first ring opening, the inner ring body needs to be transversely arranged, then the inner diameter of the inner ring body is inserted into the outer ring body corresponding to the opening of the groove, so that the outer ring body can be smoothly installed after the inner ring body is transversely arranged, and after the inner ring body is installed into the outer ring body, the inner ring body rotates until the central axis of the inner ring body is superposed with the central axis of the outer ring body, and the first ring opening can be utilized to limit the inner ring body. And the recess of supplementary inner circle body assembly also is the mouth of moulding plastics on self-lubricating layer simultaneously, and after the outer circle body was packed into to the inner circle body, carry out injection moulding through the recess and process, obtain the self-lubricating layer of sleeve structure, and the recess is filled completely to the self-lubricating layer, guarantees to assemble stably between inner circle body and the outer circle body.
Furthermore, a chamfer structure is arranged on the inner side of the locking notch part. The inner side of the lock opening portion is arranged corresponding to the radian of the inner ring body, so that after the inner ring body is installed in the outer ring body, the surface roughness of a contact area of the lock opening portion and the inner ring body can be optimized through the chamfer structure, and the condition that the use performance of the rod end knuckle bearing is influenced due to the fact that burrs and other surface defects contact the inner ring body is avoided.
Further, be provided with the punching press concave point on the recess outer edge, the punching press concave point sets up in self-lubricating layer and recess junction. After self-lubricating layer injection moulding, the punching press forms a plurality of punching press concave points on the first round mouth that the outer lane body set up the recess, further eliminates the small cavity that probably exists between self-lubricating layer and the inner circle body, ensures the inner circle body of laminating completely on self-lubricating layer, is showing the assembly accuracy that promotes rod end joint bearing.
Preferably, the self-lubricating layer is a plastic part. The self-lubricating layer is formed by injection molding by taking reinforced nylon as a raw material, the main chemical component of the self-lubricating layer is polyamide, the wear resistance is excellent, and meanwhile, by means of a plurality of repeated amide groups contained in the main chain of the polyamide, the groups have better rigidity and flexibility, and a smooth surface structure can be formed in an aggregation state of the groups, so that the surface friction coefficient of the material is very low, and the material has good self-lubricating property. Meanwhile, blending materials such as glass fiber and a toughening agent are additionally added into the reinforced nylon, so that the mechanical properties such as tensile strength, bending strength and toughness of the self-lubricating layer can be effectively improved, and the self-lubricating layer can provide a stable lubricating effect in the operation of the rod end joint bearing.
Preferably, the outer surface of one end of the rod end body, which is far away from the outer ring body, is provided with an external thread structure. The rod end body is of a screw rod structure and is used for connecting screw holes of various mechanical equipment. The rod end body provided with the external threads can be connected with various devices provided with threaded holes, such as medical instruments and mechanical devices, and the thread structure can guarantee the connection stability between the rod end joint bearing and the mounting base body.
Preferably, the rod end body is of a hollow structure, and an internal thread structure is arranged on the hollow inner wall of the rod end body. Be provided with the internal thread rod end body and be used for installing on the screw rod of all kinds of equipment, can avoid effectively promoting rod end joint bearing's adaptability and general usefulness to the trompil of equipment.
The utility model has the beneficial effects that: (1) the self-lubricating layer is additionally arranged between the inner ring body and the outer ring body to realize self-lubrication of the rod end knuckle bearing, and meanwhile, the groove is utilized to enable the inner ring body to be smoothly arranged in the outer ring body and realize concentric arrangement of the inner ring body and the outer ring body, so that the inner ring body is effectively prevented from being separated from the outer ring body in the working process of the knuckle bearing, the locking is firm, the assembly is convenient and fast, and particularly, the high-speed joint bearing has excellent stability in the high-speed operation process; (2) the characteristic that the inner ring body and the outer ring body are concentrically arranged is utilized, the self-lubricating layer is ensured to be concentric with the inner ring body and the outer ring body after injection molding, a good structural foundation is provided for stable operation of the rod end knuckle bearing, and the problems that due to the fact that the outer ring body, the self-lubricating layer and the inner ring body are not concentric, a certain area of the self-lubricating layer is rapidly abraded due to stress concentration, and therefore the operation stability and the service life of the knuckle bearing are reduced are solved; (3) after the inner ring body is arranged in the outer ring body, under the position where the axes of the inner ring body and the outer ring body are superposed, the front part of the inner ring body is close to the side edge of the second ring opening in a fit mode, namely the inner side edge of the lock opening part is in fit mode, the design effectively reduces the front-back clearance between the inner ring body and the outer ring body, improves the assembly compactness of the inner ring body and the outer ring body, can avoid the molten material from overflowing from the non-groove position of the first ring opening in the injection molding process of the self-lubricating layer, and lays a foundation for the complete filling between the inner ring body and the outer ring body after the self-lubricating layer is formed; (4) the grooves are arranged on the first ring opening of the outer ring body in a central symmetry structure, so that the uniform feeding of a cavity between the whole inner ring body and the whole outer ring body can be ensured when the self-lubricating layer is injected, the uniform filling of injected materials is realized, and the self-lubricating layer with reliable quality and uniform density is obtained; (5) the rod end body comprises a male rod end provided with an external thread and a female rod end provided with an internal thread, and adaptability and general applicability of the rod end joint bearing are effectively improved.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a rear view of the present invention;
fig. 5 is a schematic structural view of a rod end body in embodiment 2;
in the figure: 1. the rod end body 2, the outer ring body 21, the first ring opening 22, the second ring opening 3, the inner ring body 4, the self-lubricating layer 41, the lug attaching portion 5, the groove 6, the stamping concave point 7, the locking opening portion 71 and the chamfer structure.
Detailed Description
The utility model is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1 and 2, a concentric self-lubricating rod end oscillating bearing comprises: the rod end body 1 is provided with an outer ring body 2, an inner ring body 3 is arranged in the outer ring body 2, and a self-lubricating layer 4 is arranged between the inner ring body 3 and the outer ring body 2; the outer ring body 2 comprises a first ring opening 21 and a second ring opening 22 along the axial direction, and a groove 5 is formed in the first ring opening 21; wherein, the outer ring body 2 and the inner ring body 3 are arranged concentrically; wherein, the outer wall of the self-lubricating layer 4 is attached to the inner wall of the outer ring body 2, and the inner wall of the self-lubricating layer 4 is attached to the outer wall of the inner ring body 3. The first ring opening 21 is further provided with a lock opening part 7, and the inner ring body 3 is attached to the side edge of the lock opening part 7 close to the second ring opening 22. The grooves 5 are arranged in a central symmetry manner with the central axis of the outer ring body 2 as the axis.
As shown in fig. 3 and 4, during the operation of the rod end knuckle bearing, whenever the inner ring body 3 is subjected to an outward tensile force and has a tendency to move outward, the lock port portion 7 on the first ring port 21 can prevent the inner ring body 3 and the self-lubricating layer 4 from moving forward; the inner surface of the outer ring body is in a wrapping arc shape, so that the inner ring body can be limited in the outer ring body. After the inner ring body 3 is arranged in the outer ring body 2, under the position of the axis coincidence of the inner ring body 3 and the outer ring body 2, the front part of the inner ring body 3 is close to the side edge of the second ring opening 22 in a fitting manner, namely the inner side edge of the fitting manner, the front and back gaps between the inner ring body 3 and the outer ring body 2 are effectively reduced by the design, the assembly compactness of the inner ring body 3 and the outer ring body 2 is improved, meanwhile, the phenomenon that a melt overflows from the position of the non-groove 5 of the first ring opening 21 in the injection molding process of the self-lubricating layer 4 can be avoided, and the foundation for completely filling between the inner ring body 2 and the outer ring body after the self-lubricating layer 4 is molded is laid.
The axial height of the inner ring body 3 is smaller than the radial length, so that after the inner ring body 3 is transversely installed in the outer ring body 2, the inner ring body 3 is rotated to ensure that the first ring opening 21 and the second ring opening 22 of the outer ring body 2 are subjected to surrounding type limiting in the axial direction, and the rod end knuckle bearing is ensured not to be separated from the ring openings at two sides of the outer ring body 2 in the working process. Self-lubricating layer 4 is the injection molding, pours into from recess 5 between inner race body 3 and the outer race body 2 and cooling shaping, can guarantee to fill the space between inner race body 3 and the outer race body 2 completely, at concentric formula rod end joint bearing operation in-process, realizes the self-lubricating formula sliding friction between inner race body 3 and the outer race body 2. When reducing sliding friction through self-lubricating layer 4, utilize the concentric characteristics that set up of inner circle body 3 and outer circle body 2, guarantee that self-lubricating layer 4 injection moulding back is all concentric with inner circle body 3 and outer circle body 2, provide good structural foundation for rod end joint bearing's even running, avoid leading to self-lubricating layer 4 certain region stress concentration by rapid wear because of outer circle body 2, self-lubricating layer 4 and inner circle body 3 three parts decentraction to reduce joint bearing's operating stability and life's problem. Particularly during high-speed operation, the concentric rod end joint bearing provided by the application can keep silent and stable operation.
In this embodiment, the rod end body 11 and the outer ring body 22 are an integral structure, and the rod end body 11 and the inner ring body 33 disclosed by the present invention are made of the following materials: bearing steel, stainless iron, 40-wire steel, aluminum alloys, copper, and carbon steel. The bearing steel has good hardness and wear resistance, and is commonly used in bearing manufacturing; the stainless steel and the stainless iron have better corrosion resistance, and are suitable for manufacturing rod end joint bearings which are possibly corroded in working environments such as underwater equipment or food industry; the 40-strand steel is widely used as a steel material in the machinery manufacturing industry, has good comprehensive mechanical properties and low notch sensitivity, and can effectively improve the working performance stability and the service life of the rod end knuckle bearing; the aluminum alloy has the characteristics of high strength and good plasticity, is convenient to machine and form and meets the requirement of light weight; the copper rod end joint bearing has the characteristics of good ductility, good fitting degree after assembly and capability of ensuring the operation stability of the bearing; the carbon steel has low cost, and the carbon steel can be used for processing the rod end joint bearing in the application field without special requirements, so that the economic benefit is good. Under the condition of meeting the requirements of basic mechanical property and surface treatment, other materials can be used for processing and manufacturing the rod end joint bearing according to the requirements.
Self-lubricating layer 4 is the sleeve structure, and self-lubricating layer 4 is including filling in the appendage portion 41 of recess 5. The self-lubricating layer 4 extends from the first collar opening 21 to the second collar opening 22, and fills the groove 5 on the first collar opening 21 through the attaching lug part 41. The self-lubricating layer 4 is a plastic product.
When the inner ring body 3 is installed into the outer ring body 2 from the first ring opening 21, the inner ring body 3 needs to be transversely arranged, then the inner diameter of the inner ring body 3 is inserted into the outer ring body 2 corresponding to the opening of the groove 5, so that the outer ring body 2 can be smoothly installed after the inner ring body 3 is transversely arranged, and after the inner ring body 3 is installed into the outer ring body 2, the inner ring body 3 is rotated until the central axis of the inner ring body 3 is superposed with the central axis of the outer ring body 2, and the first ring opening 21 can be used for limiting the inner ring body 3. And supplementary inner circle body 3 recess 5 of assembling also is the mouth of moulding plastics of self-lubricating layer 4 simultaneously, and after outer circle body 2 was packed into to inner circle body 3, carry out injection moulding through recess 5 and process, obtain sleeve structure's self-lubricating layer 4, and self-lubricating layer 4 fills recess 5 completely, ensures that the assembly is stable between inner circle body 3 and the outer circle body 2. The self-lubricating layer 4 is injection molded by using plastics including but not limited to reinforced nylon, POM, PTFE, PA and the like as raw materials, and the common property of the materials is that the surface roughness is low due to internal crystallization crystals, so that the self-lubricating layer shows self-lubricating property. In the embodiment, the main chemical component of the self-lubricating layer 4 is polyamide, which has excellent wear resistance, and meanwhile, by virtue of many repeated amide groups contained in the main chain of polyamide, the groups have good rigidity and flexibility, and a smooth surface structure can be formed in an aggregation state, so that the surface friction coefficient of the material is very low, and the material has good self-lubricating property. Meanwhile, blending materials such as glass fiber and a toughening agent are additionally added into the reinforced nylon, so that the mechanical properties such as tensile strength, bending strength and toughness of the self-lubricating layer 4 can be effectively improved, and the self-lubricating layer 4 can provide a stable lubricating effect in the operation of the rod end joint bearing.
The inside of the lock opening part 7 is provided with a chamfer structure 71. The chamfer at the inner side of the lock opening part 7 is arranged corresponding to the radian of the inner ring body 3, so that after the inner ring body 3 is installed in the outer ring body 2, the chamfer structure 71 can optimize the surface roughness of the contact area of the lock opening part 7 and the inner ring body 3, and the condition that the use performance of the rod end joint bearing is influenced due to the fact that surface defects such as burrs contact the inner ring body 3 is avoided.
The outer edge of the groove is provided with a stamping concave point 6, and the stamping concave point is arranged at the joint of the self-lubricating layer and the groove. After self-lubricating layer injection moulding, the punching press forms a plurality of punching press concave points on the first round mouth that the outer lane body set up the recess, further eliminates the small cavity that probably exists between self-lubricating layer and the inner circle body, ensures the inner circle body of laminating completely on self-lubricating layer, is showing the assembly accuracy that promotes rod end joint bearing.
The outer surface of one end of the rod end body 1, which is far away from the outer ring body 2, is provided with an external thread structure. That is, in this embodiment, the rod end body 1 is a male rod end body 1, and the rod end body 1 is a screw structure and is used for connecting screw holes of various mechanical devices.
The assembly process of the rod end oscillating bearing in the embodiment is as follows: in this embodiment, the groove 5 is a semi-arc structure and is separately disposed on the left and right sides of the first ring opening 21, the inner ring body 3 is firstly installed into the vertically-arranged outer ring body 2 in a posture that the central axis is vertical, because the diameter of the inner ring body 3 is slightly smaller than the distance between the left and right grooves 5, the inner ring body 3 can be smoothly installed into the outer ring body 2, after the installation, the inner ring body 3 is rotated to rotate the central axis by 90 degrees and coincide with the central axis of the outer ring body 2, at this time, the inner ring body 3 and the outer ring body 2 keep a concentric state, and the inner ring body 3 cannot be separated from the first ring opening 21 under the limitation of the locking opening portion 7. The locking portion 7 ensures interference resistance of the assembly structure. After the inner ring body 3 is assembled, the rod end body 1 is wholly and transversely placed in injection molding equipment, synchronous injection molding is carried out on the left groove 5 and the right groove 5, at the moment, the inner ring body 3 keeps a concentric state with the outer ring body 2 under the action of self weight, and therefore the self-lubricating layer 4 is also concentric with the outer ring body 2 and the inner ring body 3 after being formed. The injection molding process controls the forming of the self-lubricating layer 4 through temperature and pressure, and after the parameters are adjusted in place, the injection material cannot leak out of the second ring opening 22, so that the pressure stability of an injection molding pressurizer is ensured, the self-lubricating layer 4 is uniform in density, complete in structure and smooth in inner and outer surfaces without defects, and finally the whole rod end knuckle bearing is subjected to surface treatment. The space between the inner ring body 3 and the outer ring body 2 is completely filled with the self-lubricating layer 4 after injection molding, so that the rod end oscillating bearing has self-lubricating characteristics during operation, particularly during operation in a high-speed state, and has good operation stability. And finally, selecting the position of the stamping concave point in the corner area of the groove to ensure that the stamping concave point falls on the junction of the self-lubricating layer and the groove, so that the assembly precision of the self-lubricating layer and the inner ring body is remarkably improved after the stamping is finished.
It is worth noting that the groove 5 can also be uniformly arranged in a plurality of through grooves of the first ring opening 21, including a multi-point groove, a multi-section through groove and the like, and all used for realizing synchronous injection molding to obtain the self-lubricating layer 4 with uniform density and complete structure.
Example 2
Unlike the embodiment 1, the rod end 1 in this embodiment is a female rod end 1, and as shown in fig. 5, the female rod end 1 has a hollow structure, and an internal thread structure is provided on a hollow inner wall of the rod end 1. The rod end body 1 with the internal thread structure is used for being installed on screws of various types of equipment, and can avoid opening holes of the equipment.
The diversity of the male rod end 11 in embodiment 1 and the female rod end 11 in embodiment 2 can ensure that the rod end joint bearing can meet the requirements of various mechanical devices, and effectively improve the adaptability and the universality of the rod end joint bearing.
In addition to the above embodiments, the technical features of the present invention can be re-selected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention which are not described in detail should be regarded as the specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (9)
1. A concentric self-lubricating rod end oscillating bearing, comprising:
the rod end body is provided with an outer ring body, an inner ring body is arranged in the outer ring body, and a self-lubricating layer is arranged between the inner ring body and the outer ring body;
the outer ring body comprises a first ring opening and a second ring opening along the axial direction, and a groove is formed in the first ring opening;
the outer ring body and the inner ring body are arranged concentrically;
the outer wall of the self-lubricating layer is attached to the inner wall of the outer ring body, and the inner wall of the self-lubricating layer is attached to the outer wall of the inner ring body.
2. The concentric self-lubricating rod end oscillating bearing of claim 1, wherein the first ring opening is further provided with a lock opening portion, and the inner ring body is close to the side edge of the second ring opening in a fit manner.
3. The concentric self-lubricating rod end oscillating bearing of claim 1, wherein the grooves are arranged in a central symmetry with the central axis of the outer ring body as the axis.
4. The concentric self-lubricating rod end oscillating bearing of claim 1, wherein the self-lubricating layer is a sleeve structure and comprises an attachment lug portion filled in the groove.
5. The concentric self-lubricating rod end joint bearing of claim 2, wherein the inside of the lock port portion is provided with a chamfer structure.
6. The concentric self-lubricating rod end oscillating bearing of claim 1, wherein the groove outer edge is provided with a stamped indentation, and the stamped indentation is provided at the junction of the self-lubricating layer and the groove.
7. The concentric self-lubricating rod end joint bearing according to any one of claims 1-6, wherein the self-lubricating layer is a plastic.
8. The concentric self-lubricating rod end joint bearing of claim 1, wherein the outer surface of the end of the rod end body distal from the outer ring body is provided with an external thread structure.
9. The concentric self-lubricating rod end oscillating bearing of claim 1, wherein the rod end body is hollow, and an internal thread structure is provided on the hollow inner wall of the rod end body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877565.3U CN215409769U (en) | 2021-04-26 | 2021-04-26 | Concentric self-lubricating rod end joint bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877565.3U CN215409769U (en) | 2021-04-26 | 2021-04-26 | Concentric self-lubricating rod end joint bearing |
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| CN215409769U true CN215409769U (en) | 2022-01-04 |
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| CN202120877565.3U Active CN215409769U (en) | 2021-04-26 | 2021-04-26 | Concentric self-lubricating rod end joint bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992237A (en) * | 2022-05-07 | 2022-09-02 | 上海市轴承技术研究所有限公司 | Self-lubricating rod end joint bearing and method for calculating instantaneous speed included angle at spherical common point of self-lubricating rod end joint bearing |
-
2021
- 2021-04-26 CN CN202120877565.3U patent/CN215409769U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992237A (en) * | 2022-05-07 | 2022-09-02 | 上海市轴承技术研究所有限公司 | Self-lubricating rod end joint bearing and method for calculating instantaneous speed included angle at spherical common point of self-lubricating rod end joint bearing |
| CN114992237B (en) * | 2022-05-07 | 2024-03-22 | 上海市轴承技术研究所有限公司 | Self-lubricating rod end joint bearing and method for calculating instantaneous speed included angle at spherical co-point position thereof |
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