CN217355200U - Rod end joint bearing convenient to assembly - Google Patents
Rod end joint bearing convenient to assembly Download PDFInfo
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- CN217355200U CN217355200U CN202120940049.0U CN202120940049U CN217355200U CN 217355200 U CN217355200 U CN 217355200U CN 202120940049 U CN202120940049 U CN 202120940049U CN 217355200 U CN217355200 U CN 217355200U
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- ring body
- rod end
- matching sleeve
- outer ring
- inner ring
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Abstract
The utility model discloses a rod end joint bearing convenient for assembly, which comprises a rod end body, wherein an outer ring body is arranged on the rod end body, and an inner ring body is arranged in the outer ring body; the outer ring body comprises a first ring opening and a second ring opening along the axial direction, a first matching sleeve is arranged on the first ring opening, a second matching sleeve is arranged on the second ring opening, and the first matching sleeve and the second matching sleeve are encircled on the front side and the rear side of the inner ring body; the first matching sleeve is in threaded connection with the outer ring body, and the second matching sleeve is in threaded connection with the outer ring body. Through the first cooperation cover of both sides threaded connection and the second cooperation cover around the inner ring body, it is convenient to assemble, and utilizes the tensile strength of helicitic texture promotion joint bearing, effectively avoids the inner ring body to deviate from the outer ring body in joint bearing working process, and the locking is firm, especially has excellent stability in heavy machinery field.
Description
Technical Field
The utility model belongs to the technical field of joint bearing technique and specifically relates to a rod end joint bearing convenient to assembly is related to.
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 joint bearing is widely applied to the industries of engineering hydraulic oil cylinders, forging and pressing machine tools, engineering machinery, automation equipment, automobile shock absorbers, hydraulic machinery and the like. However, most of the joint bearings in the current market adopt a mode that an inner ring body is pressed into an outer ring body, and limit pieces such as a sealing ring are clamped outside the inner ring body for assembly; this kind of mode needs the press cooperation, and the step is comparatively loaded down with trivial details, and more main problem is, when joint bearing application in heavy apparatus field, joint bearing inner ring body in the operation process can bear very big pulling force, and the joint bearing of pressing the joint connection appears limit structure not hard up easily at last long-term working in-process, and then the phenomenon that the outer circle body was deviate from to the inner circle body probably appears, cause the bearing to become invalid even equipment damages, consequently adopt modes such as pressfitting connection, welding, block connection assembly moulding's rod end joint bearing, this kind of bearing inner ring body or limit structure is fragile relatively, or the processing assembly is comparatively loaded down with trivial details, can't eliminate above-mentioned hidden danger urgently, market demand waits to satisfy.
For example, chinese patent publication No. CN212657125U discloses "a rod end joint bearing assembly structure", including: a rod end body, an outer ring body is arranged on the rod end body; the inner ring body is assembled in the outer ring body; the locking grooves are arranged on the two edges of the outer edge of the inner ring body in the axial direction and are annular grooves; wherein, the outer ring body is provided with a locking port layer for connecting the locking groove by a pressure card. The locking grooves are formed in the two sides of the outer edge of the inner ring body, and the locking grooves are matched with the locking notch layer arranged on the outer ring body to realize rigid locking of 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 assembling mode can ensure that the inner ring body cannot be separated from the outer ring body under the limiting of the locking layer to a certain extent, but a press is required to be matched during assembling, the press fitting of the inner ring body cannot be ensured to be in place, and the process is complicated; when the heavy-duty machine is applied, the structural strength of the locking port layer is difficult to avoid bearing failure caused by the phenomenon that the inner ring body is separated from the outer ring body due to damage under high tension.
Disclosure of Invention
Adopt mode assembly shaping's such as pressfitting connection, welding, block connection rod end joint bearing among the prior art to mention in the background art, wherein welding, block mode exist the relative fragile problem of limit structure of inner circle body, and pressfitting, inlay the mode of connecting and have the comparatively loaded down with trivial details problem of processing assembly again, the utility model provides a rod end joint bearing convenient to assembly, through including the first cooperation cover of both sides threaded connection and second cooperation cover around the inner circle body, it is convenient to assemble, and utilizes the tensile strength of helicitic texture promotion joint bearing, effectively avoids the inner circle body to deviate from the outer circle body in joint bearing working process, and the locking is firm, especially has excellent stability in heavy type machinery field.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rod end knuckle bearing to facilitate assembly, comprising: the rod end body is provided with an outer ring body, and an inner ring body is arranged in the outer ring body; the outer ring body comprises a first ring opening and a second ring opening along the axial direction, a first matching sleeve is arranged on the first ring opening, a second matching sleeve is arranged on the second ring opening, and the first matching sleeve and the second matching sleeve are encircled at the front side and the rear side of the inner ring body; the first matching sleeve is in threaded connection with the outer ring body, and the second matching sleeve is in threaded connection with the outer ring body.
After the inner ring body is arranged in the outer ring body, the first matching sleeve and the second matching sleeve are in embracing type limiting on the inner ring body, the first matching sleeve and the second matching sleeve are in threaded connection with the inner wall of the outer ring body, so that large force transmitted by the inner ring body and the movable rod on the inner ring body can be completely resisted, and the inner ring body is prevented from being separated from the outer ring body from the first ring opening or being ejected out of the outer ring body from the second ring opening. Adopt helicitic texture assembly joint bearing in this application, compare in traditional pressfitting connection, through control helicitic texture size when adding man-hour, the accurate adjustment oil clearance of being more convenient for joint bearing's whole processing precision degree obtains promoting, and then improves product quality, reinforcing market competition. In addition, the first matching sleeve and the second matching sleeve are arranged on the front side and the rear side of the inner ring body, so that the inner ring body can be prevented from axially moving, the shock resistance of the inner ring body is stronger, and the stability of the inner ring body during movement is improved.
Preferably, a matching cambered surface is arranged on the inner side of the first matching sleeve and is attached to the inner ring body.
Furthermore, the first matching sleeve is of a composite structure and comprises a jointing layer and a wear-resistant layer arranged on the inner wall of the jointing layer, a threaded structure is arranged on the jointing layer, and the matching cambered surface is arranged on the inner wall of the wear-resistant layer.
The first matching sleeve comprises a junction layer used for connecting the outer ring body, and the junction layer is made of materials with higher hardness, such as but not limited to bearing steel, stainless steel and the like; the inner wall of the junction layer is provided with a wear-resistant layer for attaching the inner ring body, the wear-resistant layer is made of materials including but not limited to copper alloy, ceramic and the like, has a friction coefficient of intersection and excellent wear resistance, and ensures smooth operation of the inner ring body in the wear-resistant layer. The fit cambered surface of the inner wall of the wear-resistant layer can wrap the inner ring body to be limited while reducing friction.
Preferably, the outer end face of the first matching sleeve is provided with a wrench operation opening. Because first cooperation cover closes soon and submerges first round mouth and accomplish the assembly, consequently ordinary assembly method can't guarantee that first cooperation cover cooperation targets in place, and interior angle spanner passes through the first cooperation cover of spanner operation mouth connection, and the assembly is accomplished to the first cooperation cover of operation that can convenient and fast, and the assembly precision accords with the design requirement.
Preferably, the first matching sleeve and the second matching sleeve are symmetrically arranged on two sides of the inner ring body. The inner ring body is provided with a front part and a rear part which are respectively attached to the inner ring body, the inner ring body is ensured to be distributed in a surrounding manner, and the inner walls of the first matching sleeve and the second matching sleeve are of inner arc structures corresponding to the outer edge of the inner ring body.
Furthermore, a stamping concave point is arranged on the end face of the first ring opening, and the stamping concave point is arranged at the joint of the first ring opening and the first matching sleeve. After the first matching sleeve and the second matching sleeve are installed on the outer ring body, a plurality of stamping concave points are stamped on the first ring opening of the outer ring body, so that a possible micro cavity between the first matching sleeve and the inner ring body is further eliminated, the first matching sleeve is ensured to be completely attached to the inner ring body, and the assembly precision of the rod end knuckle bearing is obviously improved; and a plurality of stamping concave points are arranged on the second ring opening, so that the second matching sleeve is ensured to be attached to the inner ring body, the first matching sleeve and the second matching sleeve on the two sides of the inner ring body can be closely attached to the inner ring body, and the assembly precision and the sealing and dust-proof performance of the rod end knuckle bearing are obviously improved.
Preferably, the outer ring body and the inner ring body are concentrically arranged. After the inner ring body is installed into the outer ring body, the characteristic that the inner ring body and the outer ring body are concentrically arranged is utilized, a good structural foundation is provided for the stable operation of the rod end knuckle bearing, and the problems that the stress concentration of a certain region of the inner wall of the outer ring body is quickly abraded due to the fact that the outer ring body and the inner ring body are not concentric are solved, so that the operation stability of the knuckle bearing is reduced, and the service life of the knuckle bearing is prolonged. The disclosed concentric structure rod end joint bearing of this application can possess better silence nature and stability in the operation process.
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 textile machinery, and the thread structures 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 advantages that: (1) the first matching sleeve and the second matching sleeve are in threaded connection on the front side and the rear side of the inner ring body, so that the assembly is convenient and fast, the tensile strength of the knuckle bearing is improved by utilizing a threaded structure, 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, and the stability is excellent particularly in the field of heavy machinery; (2) the characteristic that the inner ring body and the outer ring body are concentrically arranged is utilized, a good structural foundation is provided for the stable operation of the rod end knuckle bearing, and the problems that the operating stability and the service life of the knuckle bearing are reduced due to the fact that a certain area of a self-lubricating layer is quickly abraded under stress concentration caused by the fact that the outer ring body and the inner ring body are not concentric are avoided; (3) the common assembly method cannot ensure that the first matching sleeve is assembled in place, the inner angle wrench is connected with the first matching sleeve through the wrench operation opening, the first matching sleeve can be operated conveniently and quickly to complete assembly, and the assembly precision meets the design requirement; (4) the inner ring body can be wrapped and limited by the matched arc surface of the inner wall of the wear-resistant layer while friction is reduced; (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 diagram of the present invention;
fig. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional side view taken at A-A of FIG. 3;
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 first matching sleeve, 41, the jointing layer, 42, the wear-resisting layer, 5, the second matching sleeve, 6, the stamping concave point, 7 and the wrench operation opening.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1 and 2, a rod end joint bearing for easy assembly includes: the rod end body 1 is provided with an outer ring body 2, and an inner ring body 3 is arranged in the outer ring body; the outer ring body comprises a first ring opening 21 and a second ring opening 22 along the axial direction, a first matching sleeve 4 is arranged on the first ring opening, a second matching sleeve 5 is arranged on the second ring opening, and the first matching sleeve and the second matching sleeve are encircled on the front side and the rear side of the inner ring body; the first matching sleeve is in threaded connection with the outer ring body, and the second matching sleeve is in threaded connection with the outer ring body. The outer ring body and the inner ring body are arranged concentrically.
After the inner ring body is arranged in the outer ring body, the first matching sleeve and the second matching sleeve carry out looping limiting on the inner ring body, the first matching sleeve and the second matching sleeve are in threaded connection with the inner wall of the outer ring body, so that large force transmitted by the inner ring body and a movable rod on the inner ring body can be completely resisted, and the inner ring body is prevented from being separated from the outer ring body from a first ring opening or is prevented from being ejected out of the outer ring body from a second ring opening. Adopt helicitic texture assembly joint bearing in this application, compare in traditional pressfitting connection, through control helicitic texture size when adding man-hour, the accurate adjustment oil clearance of being more convenient for joint bearing's whole processing precision degree obtains promoting, and then improves product quality, reinforcing market competition. In addition, the first matching sleeve and the second matching sleeve are arranged on the front side and the rear side of the inner ring body, so that the inner ring body can be prevented from axially moving, the shock resistance of the inner ring body is stronger, and the stability of the inner ring body during movement is improved. After the inner ring body is installed into the outer ring body, the characteristic that the inner ring body and the outer ring body are concentrically arranged is utilized, a good structural foundation is provided for the stable operation of the rod end knuckle bearing, and the problems that the stress concentration of a certain region of the inner wall of the outer ring body is quickly abraded due to the fact that the outer ring body and the inner ring body are not concentric are solved, so that the operation stability of the knuckle bearing is reduced, and the service life of the knuckle bearing is prolonged. The disclosed concentric structure rod end joint bearing of this application can possess better silence nature and stability in the operation process.
As shown in fig. 3 and 4, a fitting arc surface is arranged inside the first fitting sleeve, and the fitting arc surface is attached to the inner ring body. First cooperation cover is combined type structure, includes tieing layer 41 and sets up in the wearing layer 42 of tieing layer 41 inner wall, be provided with the helicitic texture on the tieing layer 41, the cooperation cambered surface sets up in wearing layer 42 inner wall. The first matching sleeve comprises a junction layer 41 for connecting the outer ring body, and the junction layer 41 is made of materials with higher hardness, such as but not limited to bearing steel, stainless steel and the like; the inner wall of the junction layer 41 is provided with a wear-resistant layer 42 for attaching the inner ring body, the wear-resistant layer 42 is made of materials including but not limited to copper alloy, ceramic and the like, has a friction coefficient of intersection and excellent wear resistance, and ensures smooth running of the inner ring body in the wear-resistant layer 42. The fit cambered surface of the inner wall of the wear-resistant layer 42 can wrap the inner ring body to be limited while reducing friction.
In addition, a wrench operation opening 7 is arranged on the outer end face of the first matching sleeve. Because first cooperation cover closes soon and submerges first round mouth and accomplish the assembly, consequently ordinary assembly method can't guarantee that first cooperation cover cooperation targets in place, and interior angle spanner passes through spanner operation mouth 7 and connects first cooperation cover, and the first cooperation of operation cover that can convenient and fast accomplishes the assembly, and the assembly precision accords with the design requirement. The second matching sleeve and the first matching sleeve are symmetrically arranged on two sides of the inner ring body. The inner ring body is provided with a front part and a rear part which are respectively attached to the inner ring body, the inner ring body is ensured to be distributed in a surrounding manner, and the inner walls of the first matching sleeve and the second matching sleeve are of inner arc structures corresponding to the outer edge of the inner ring body.
And a stamping concave point 6 is arranged on the end surface of the first ring opening, and the stamping concave point 6 is arranged at the joint of the first ring opening and the first matching sleeve. After the first matching sleeve and the second matching sleeve are installed on the outer ring body, a plurality of stamping concave points 6 are stamped on the first ring opening of the outer ring body, so that a possible micro cavity between the first matching sleeve and the inner ring body is further eliminated, the first matching sleeve is ensured to be completely attached to the inner ring body, and the assembly precision of the rod end knuckle bearing is obviously improved; and a plurality of stamping concave points 6 are arranged on the second ring opening, so that the second matching sleeve is ensured to be attached to the inner ring body, the first matching sleeve and the second matching sleeve on the two sides of the inner ring body can be tightly attached to the inner ring body, and the assembly precision and the sealing and dust-proof performance of the rod end knuckle bearing are obviously improved.
And an external thread structure is arranged on the outer surface of one end of the rod end body, which is far away from the outer ring body. 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 textile machinery, and the thread structures can guarantee the connection stability between the rod end joint bearing and the mounting base body.
The assembly process of the rod end knuckle bearing in this embodiment is as follows: firstly, coating anaerobic adhesive on the outer edge of a second matching sleeve 5, screwing the anaerobic adhesive into an outer ring body 2, and then loading an inner ring body 3 into the outer ring body 2 to ensure that the inner ring body 3 and the outer ring body 2 keep a concentric state; after the inner ring body 3 is assembled, the outer edge of the first matching sleeve 4 is coated with anaerobic adhesive and screwed into the outer ring body 2 from the first ring opening 21, so that the first matching sleeve 4 is assembled on the front side of the inner ring body 3. The first matching sleeve and the second matching sleeve are matched with each other to complete axial limiting of the inner ring body, axial movement of the joint bearing in the operation process is avoided, and sealing performance and shock resistance of the joint bearing are effectively improved. And finally, selecting the positions of the stamping concave points 6 on the front end surface and the rear end surface of the outer ring body to ensure that the stamping concave points 6 fall at the junction of the outer ring body and the matching sleeve, so that the assembly precision of the first matching sleeve and the second matching sleeve with the inner ring body is obviously improved after stamping.
Example 2
Different from the embodiment 1, in this embodiment, the rod end body 1 is a female rod end body 1, the female rod end body 1 has a hollow structure, and an internal thread structure is provided on a hollow inner wall of the rod end body 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 hole opening of the equipment.
The diversity of the male rod end 1 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 types of mechanical equipment, and the adaptability and the universality of the rod end joint bearing are effectively improved.
In addition to the above embodiments, the technical features of the present invention can be re-selected and combined within the scope of the present invention as disclosed in the claims and the specification to constitute new embodiments, which can be realized by those skilled in the art without any creative work, therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.
Claims (9)
1. A rod end knuckle bearing to facilitate assembly, comprising:
the rod end body is provided with an outer ring body, and an inner ring body is arranged in the outer ring body;
the outer ring body comprises a first ring opening and a second ring opening along the axial direction, a first matching sleeve is arranged on the first ring opening, a second matching sleeve is arranged on the second ring opening, and the first matching sleeve and the second matching sleeve are encircled at the front side and the rear side of the inner ring body;
the first matching sleeve is in threaded connection with the outer ring body, and the second matching sleeve is in threaded connection with the outer ring body.
2. A rod end joint bearing convenient to assemble according to claim 1, wherein a fit arc surface is arranged inside the first fit sleeve, and the fit arc surface is arranged to fit against the inner ring body.
3. The rod end joint bearing convenient to assemble of claim 2, wherein the first matching sleeve is of a composite structure and comprises a bonding layer and a wear-resistant layer arranged on the inner wall of the bonding layer, a threaded structure is arranged on the bonding layer, and the matching cambered surface is arranged on the inner wall of the wear-resistant layer.
4. A rod end joint bearing convenient to assemble according to claim 1, wherein the outer end face of the first mating sleeve is provided with a wrench operation opening.
5. An easily assembled rod end joint bearing according to any one of claims 1-4, wherein the first and second mating sleeves are symmetrically disposed on both sides of the inner ring body.
6. An easily assembled rod end joint bearing according to claim 1, wherein the first ring opening end surface is provided with a stamping concave point, and the stamping concave point is provided with a joint of the first ring opening and the first matching sleeve.
7. An assembly facilitating rod end joint bearing according to claim 1, wherein the outer race body is disposed concentrically with the inner race body.
8. An assembly facilitating rod end joint bearing according to claim 1, wherein an outer surface of an end of the rod end body distal from the outer ring body is provided with an external thread structure.
9. An easily assembled rod end knuckle bearing as claimed in claim 1, wherein the rod end body is hollow with internal threads on the inner hollow wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120940049.0U CN217355200U (en) | 2021-04-30 | 2021-04-30 | Rod end joint bearing convenient to assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120940049.0U CN217355200U (en) | 2021-04-30 | 2021-04-30 | Rod end joint bearing convenient to assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217355200U true CN217355200U (en) | 2022-09-02 |
Family
ID=83008505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120940049.0U Active CN217355200U (en) | 2021-04-30 | 2021-04-30 | Rod end joint bearing convenient to assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217355200U (en) |
-
2021
- 2021-04-30 CN CN202120940049.0U patent/CN217355200U/en active Active
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