CN215409744U - Unilateral self-lubricating rod end joint bearing - Google Patents
Unilateral self-lubricating rod end joint bearing Download PDFInfo
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- CN215409744U CN215409744U CN202120877470.1U CN202120877470U CN215409744U CN 215409744 U CN215409744 U CN 215409744U CN 202120877470 U CN202120877470 U CN 202120877470U CN 215409744 U CN215409744 U CN 215409744U
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Abstract
The utility model discloses a unilateral 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 inner side of the second ring opening is provided with a limiting part; 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. When the self-lubricating layer is additionally arranged between the inner ring body and the outer ring body which are concentrically arranged to realize self-lubrication of the rod end oscillating bearing, the limit portion on the outer ring body is utilized to carry out hard unilateral limit on the inner ring body, the outer ring body is effectively prevented from being separated from the inner ring body in the working process of the oscillating bearing, the locking is firm, the assembly 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 unilateral 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 of a self-lubricating type rod end joint bearing in the prior art, but the running stability of the bearing is influenced by changing the materials, and the joint bearing is easy to lose efficacy due to the fact that an inner ring body is separated from an outer ring body.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a one-sided 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; wherein, the inner side of the second ring opening is provided with a limiting part; 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, so that 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 unilateral 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. Especially in the high-speed operation process, the unilateral rod end joint bearing that this application provided can keep silent and steady 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; and the limit part on the second ring opening realizes the unilateral hard locking of the inner ring body, thereby avoiding the generation of the backward ejection action of the inner ring body. The limiting part is matched with the locking notch part to limit the inner ring body inside 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.
Furthermore, the limiting part extends towards the middle of the second ring opening along the inner diameter direction of the outer ring body. The limiting part is a hard limiting structure of the unilateral rod end joint bearing, the back of the inner ring body is limited in a cladding mode through the limiting part, and the inner ring body is prevented from being separated from the second ring opening.
Furthermore, the limiting part is of an annular structure and is annularly arranged along the second ring opening. The spacing portion of annular can guarantee to mould plastics when self-lubricating layer, the injection molding material can not ooze and produce injection pressure disorder from the second circle mouth, promotes the pressure stability of the process of moulding plastics especially pressurize process, can ensure simultaneously that self-lubricating layer density is even, moulds the type back overall structure stable.
Preferably, the limiting part is of a boss structure and comprises a boss top surface arranged corresponding to the outer arc surface of the inner ring body. The boss top surface is the arc structure, outer cambered surface of the inner race body is laminated through the boss top surface to spacing portion, and both are face contact, and the roughness grade of the surface of the boss top surface is IT7 at least, ensure that frictional force between spacing portion and the inner race body does not influence normal work of 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 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 which are concentrically arranged to realize self-lubrication of the rod end knuckle bearing, and the limit part on the outer ring body is utilized to carry out hard single-side limit on the inner 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 the high-speed joint bearing has excellent stability particularly 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, outer circle body, 21, first circle mouth, 22, second circle mouth, 3, inner circle body, 4, self-lubricating layer, 41, attach ear portion, 5, recess, 6, spacing portion, 61, boss top surface, 7, fore shaft portion, 71, 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 single-side 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 inner side of the second ring opening 22 is provided with a limiting part 6; 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; and the limiting part 6 on the second ring opening 22 realizes the unilateral hard locking of the inner ring body 3, thereby avoiding the generation of the backward ejection action of the inner ring body 3. The limiting part 6 is matched with the locking notch part 7 to limit the inner ring body 3 inside the outer ring body 2. 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 unilateral 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. Especially in the high-speed operation process, the unilateral rod end joint bearing that this application provided can keep silent and steady 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 formed by injection molding 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 materials have internal crystallization crystals, so that the surface roughness is low, and 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 limiting part 6 extends towards the middle of the second ring opening 22 along the inner diameter direction of the outer ring body 2. The limiting part 6 is of an annular structure, and the limiting part 6 is annularly arranged along the second ring opening 22. Spacing portion 6 is the boss structure, and spacing portion 6 is including the boss top surface 61 that corresponds the setting of inner race body 3 extrados.
The limiting part 6 is a hard limiting structure of the unilateral rod end joint bearing, and the back of the inner ring body 3 is limited in a cladding mode through the limiting part 6, so that the inner ring body 3 is prevented from being separated from the outer ring body 2 from the second ring opening 22. Spacing portion 6 of annular can guarantee to mould plastics when self-lubricating layer 4, the injection molding material can not ooze and produce injection pressure disorder from second circle mouth 22, promotes the pressure stability of the especially pressurize process of the process of moulding plastics, can ensure simultaneously that self-lubricating layer 4 density is even, moulds the type back overall structure stable. Boss top surface 61 is the arc structure, and spacing portion 6 passes through boss top surface 61 laminating inner race body 3 extrados, and both are face contact, and the roughness grade of boss top surface 61 is IT7 at least, ensures that frictional force between spacing portion 6 and the inner race body 3 does not influence rod end joint bearing's normal work. Simultaneously, possess good dustproof effect, improve rod end joint bearing's life.
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 lock opening part 7 is matched with the limiting part 6 to ensure the anti-interference performance 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 molding 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 pressure maintaining worker is ensured, the self-lubricating layer 4 is uniform in density, complete in structure, and smooth in inner and outer surfaces without defects. 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.
It is worth noting that the grooves 5 can also be uniformly arranged in a plurality of through grooves of the first ring opening 21 in a surrounding manner, and are used for synchronously performing 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 (10)
1. The utility model provides a unilateral formula self-lubricating rod end joint bearing which characterized in that includes:
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 inner side of the second ring opening is provided with a limiting part;
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 unilateral self-lubricating rod end joint bearing of claim 1, wherein 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.
3. The self-lubricating single-sided rod end joint bearing of claim 1, wherein the grooves are arranged in a central symmetry with a central axis of the outer race body as an axis.
4. The self-lubricating rod end joint 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 single sided 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 single-sided self-lubricating rod end oscillating bearing of claim 1, wherein the limiting portion extends towards the middle of the second ring opening along the inner diameter direction of the outer ring body.
7. The single sided self lubricating rod end joint bearing of claim 6, wherein the limiting portion is an annular structure and is annularly disposed along the second ring opening.
8. The single-sided self-lubricating rod end oscillating bearing of claim 6, wherein the limiting portion is of a boss structure and comprises a boss top surface corresponding to the outer arc surface of the inner ring body.
9. The self-lubricating rod end joint bearing of any one of claims 1-8, wherein the self-lubricating layer is a plastic.
10. The single-sided self-lubricating rod end joint bearing according to any one of claims 1-8, wherein the outer surface of the end of the rod end body, which is far away from the outer ring body, is provided with an external thread structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120877470.1U CN215409744U (en) | 2021-04-26 | 2021-04-26 | Unilateral self-lubricating rod end joint bearing |
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| CN202120877470.1U CN215409744U (en) | 2021-04-26 | 2021-04-26 | Unilateral self-lubricating rod end joint bearing |
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| CN202120877470.1U Active CN215409744U (en) | 2021-04-26 | 2021-04-26 | Unilateral 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 |
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2021
- 2021-04-26 CN CN202120877470.1U patent/CN215409744U/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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