CN209743404U - sliding shaft sleeve restraint structure - Google Patents
sliding shaft sleeve restraint structure Download PDFInfo
- Publication number
- CN209743404U CN209743404U CN201920392759.7U CN201920392759U CN209743404U CN 209743404 U CN209743404 U CN 209743404U CN 201920392759 U CN201920392759 U CN 201920392759U CN 209743404 U CN209743404 U CN 209743404U
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- China
- Prior art keywords
- shaft sleeve
- shaft
- sleeve
- axle
- end cover
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- 230000000452 restraining effect Effects 0.000 claims abstract 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Pivots And Pivotal Connections (AREA)
Abstract
The utility model provides a sliding shaft sleeve restraining structure, which comprises a supporting seat, a shaft sleeve A, a shaft sleeve B, an end cover and an electric push rod; the axle fixed mounting on the supporting seat, axle sleeve A installs in the left side of axle, axle sleeve B install in the centre of axle, the end cover install in the right side of axle, the end cover pass through screw fixed mounting on the supporting seat, the axle pass through nut fixed mounting on the supporting seat, axle sleeve A right-hand member face be the inclined plane, two terminal surfaces of axle sleeve B all be the inclined plane, the left end of end cover be the inclined plane. The utility model discloses an axle sleeve design has the hypotenuse, and comprises a plurality of axle sleeves, has solved the problem that has the relative motion of circumference between axle sleeve and the axle fundamentally, can fundamentally solve the friction damage between axle sleeve and the axle, has prolonged the life of axle and axle sleeve.
Description
Technical Field
The utility model relates to a axle sleeve structure especially relates to a restraint structure of slip axle sleeve.
Background
The shaft sleeve belongs to one of quick-wear parts of pump parts, and the shaft sleeve or the inner ring of the bearing has larger consumption and is a part easy to wear, so the problems of high production cost, longer technical process and shorter service life when the shaft sleeve or the inner ring of the bearing is processed by adopting the existing processing technology. The main reason for this is that the outer surface of the sleeve or the bearing inner ring is likely to be worn due to high probability of receiving frictional force, impact force, shearing force, and the like. How to improve the service life of the shaft sleeve or the bearing inner ring and reduce the processing and manufacturing cost has become a technical problem to be solved by those skilled in the art.
In the prior art, the interference fit between the shaft sleeve and the shaft is mainly utilized to realize the constraint of the circumferential direction and the axial direction of the shaft sleeve, but the following problems still exist, and 1, the interference fit makes the assembly difficult; 2. in practical use, the shaft sleeve is subjected to a large circumferential load, so that circumferential relative motion exists between the shaft sleeve and the shaft under the action of circumferential force in long-term use, the relative motion may abrade a zinc coating on the surface of the shaft, and the potential safety hazard of rusting of parts exists; meanwhile, the shaft sleeve is made of copper alloy, the copper alloy is brittle, and the shaft sleeve is not suitable for being cracked during interference assembly to strengthen the restraint in a mode of increasing interference magnitude.
Chinese patent application 201310213916.0 discloses a shaft sleeve structure, which comprises a shaft hole matched with a shaft, wherein the shaft sleeve is composed of a conical ring and two sections of rings arranged at two ends of the conical ring, and is characterized in that carburized layers are arranged on the outer surfaces of the conical ring and the two sections of rings, and a wear-resistant layer is coated on the surface of the carburized layer; the thickness of the carburized layer is 3 mm-5 mm, and the thickness of the wear-resistant layer is 0.1 mm-0.3 mm. Because the carburized layer and the wear-resistant coating are only added on the surface of the shaft sleeve, the hardness, the wear resistance, the impact resistance and the corrosion resistance of the surface of the shaft sleeve can be obviously improved. The processing technique for forming the carburized layer and the wear-resistant coating is relatively simple, and simultaneously, the carburized layer and the wear-resistant coating can be formed
The cost of other processing processes (such as a heat treatment process) is reduced. The shaft sleeve has the advantages of low production cost, obvious improvement on durability, long service life and the like. However, the present invention cannot fundamentally solve the problem that the sleeve and the shaft have circumferential relative movement, that is, the present invention cannot fundamentally solve the problem of friction damage between the sleeve and the shaft.
For another example, chinese patent application 201620378779.5 discloses a sectional type shaft sleeve structure, which includes a pump shaft, a first shaft sleeve, a key, a tool withdrawal groove, a connection sleeve, a second shaft sleeve, an O-ring, a pump shaft sleeve, an arc block, and a rotary ring, wherein the first shaft sleeve is fixed on the left side of the pump shaft, the key is located at the center of the surface of the first shaft sleeve, two sides of the connection sleeve are respectively connected with the first shaft sleeve and the second shaft sleeve, the connection sleeve is fixed on the pump shaft through the tool withdrawal groove therein, the O-ring is located at the tail end of the second shaft sleeve, the pump shaft sleeve is fixed on the right side of the pump shaft, the arc block is connected with one side of. The utility model discloses avoided taking down the machine seal axle sleeve at the machine seal adjustment change in-process, the problem that the key drops easily is to current machine seal axle sleeve institutional advancement, has improved installation, maintenance efficiency. The longer shaft sleeve is processed in two sections, so that the processing precision is guaranteed, the requirements on the processing precision and the material are not met for the first shaft sleeve part, the first shaft sleeve part is only used as a structural requirement, and the cost is reduced. The utility model discloses a same can not fundamentally solve the problem that has the relative motion of circumference between axle sleeve and the axle, can not fundamentally solve the friction damage between axle sleeve and the axle promptly.
SUMMERY OF THE UTILITY MODEL
Problem to exist among the prior art, the utility model aims at providing a restraint structure of slip axle sleeve, the utility model discloses an axle sleeve design has the hypotenuse, utilizes the mode that the inclined plane is connected to realize the axial and the circumference restraint of counter shaft when connecting, then fundamentally has solved the problem that has the relative motion of circumference between axle sleeve and the axle, can not fundamentally solve the friction damage between axle sleeve and the axle promptly.
The utility model discloses a realize through following technical scheme:
A constraint structure of a sliding shaft sleeve comprises a supporting seat, a shaft sleeve A, a shaft sleeve B and an end cover; the shaft is arranged on the supporting seat, the right end face of the shaft sleeve A is an inclined plane, the two end faces of the shaft sleeve B are inclined planes, and the left end of the end cover is an inclined plane; the shaft sleeve A is arranged on the left side of the shaft, the shaft sleeve B is arranged in the middle of the shaft, the left end inclined plane of the shaft sleeve B is in butt joint with the right end inclined plane of the shaft sleeve A, the end cover is arranged on the right side of the shaft, and the left end inclined plane of the end cover is in butt joint with the right end inclined plane of the shaft sleeve B; the end cover is fixedly arranged on the supporting seat through a screw, and the shaft is fixedly arranged on the supporting seat through a nut.
Further, in the preferred embodiment of the present invention, the inclined plane angle of the axle sleeve a, the axle sleeve B and the end cover is 76 °.
Further, in a preferred embodiment of the present invention, the shaft is made of 40 Cr; the shaft surface is a zinc coating.
Further, in a preferred embodiment of the present invention, the shaft sleeve is made of copper alloy.
Further, in the preferred embodiment of the present invention, the left end of the end cap has two screw openings, and the end cap is fixed on the supporting seat by two screws.
Further, in the preferred embodiment of the present invention, the nut is fixedly mounted on the right end of the shaft.
Further, in the preferred embodiment of the present invention, the inner diameters of the shaft sleeve a, the shaft sleeve B and the end cap are equal to the outer diameter of the shaft.
The beneficial effects of the utility model reside in that:
(1) The utility model provides a restraint structure of slip axle sleeve, the utility model discloses an axle sleeve design has the hypotenuse, and has a plurality of axle sleeves to constitute, utilizes the mode that the inclined plane is connected to realize the axial and the circumference restraint of counter shaft when connecting, then fundamentally has solved the problem that has the relative motion of circumference between axle sleeve and the axle, can fundamentally solve the friction damage between axle sleeve and the axle.
(2) The structure disclosed by the embodiment can complete eighty-thousand life tests, and no phenomenon of axial and circumferential looseness occurs in the life test period.
(3) The utility model provides a restraint structure of slip axle sleeve, the mode that adopts the inclined plane to connect can realize the reliable restraint of axial, circumference motion in narrow and small space.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope.
Fig. 1 is a schematic structural view of a constraint structure of a sliding shaft sleeve according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a shaft sleeve a of a constraint structure of a sliding shaft sleeve according to an embodiment of the present invention;
Fig. 3 is a schematic structural view of a shaft sleeve B of a constraint structure of a sliding shaft sleeve according to an embodiment of the present invention;
Fig. 4 is a schematic structural view of a restraint structure end cap of the sliding shaft sleeve according to an embodiment of the present invention;
Reference numerals: 1-supporting seat, 2-shaft, 3-shaft sleeve A, 4-shaft sleeve B, 5-end cover, 6-screw and 7-nut.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
examples
Referring to fig. 1-4, an embodiment of the present invention provides a constraint structure of a sliding shaft sleeve, where the constraint structure of the sliding shaft sleeve includes a support seat 1, a shaft 2, a shaft sleeve A3, a shaft sleeve B4, and an end cover 5; the shaft 2 is arranged on the supporting seat 1, the right end face of the shaft sleeve A3 is an inclined plane, the two end faces of the shaft sleeve B4 are inclined planes, and the left end of the end cover 5 is an inclined plane; the shaft sleeve A3 is arranged on the left side of the shaft 2, the shaft sleeve B4 is arranged in the middle of the shaft 2, the left end inclined plane of the shaft sleeve B4 is in butt joint with the right end inclined plane of the shaft sleeve A3, the end cover 5 is arranged on the right side of the shaft 2, and the left end inclined plane of the end cover 5 is in butt joint with the right end inclined plane of the shaft sleeve B4; the end cover 5 is fixedly arranged on the supporting seat through a screw 6, and the shaft 2 is fixedly arranged on the supporting seat through a nut 7.
Further, in the preferred embodiment of the present invention, the inclined plane angles of the sleeve A3, the sleeve B4 and the end cap 5 are 76 °.
Further, in a preferred embodiment of the present invention, the material of the shaft 2 is 40 Cr; the surface of the shaft 2 is a zinc coating.
further, in the preferred embodiment of the present invention, the material of the shaft sleeve A3, the shaft sleeve B4 and the end cap 5 is copper alloy.
Further, in the preferred embodiment of the present invention, the left end of the end cap 5 has two screw openings, and the end cap 5 is fixed on the supporting seat 1 by two screws 6.
Further, in the preferred embodiment of the present invention, the nut 7 is fixedly installed at the right end of the shaft 2.
Further, in the preferred embodiment of the present invention, the inner diameters of the sleeve A3, the sleeve B4 and the end cap 5 are equal to the outer diameter of the shaft.
In the working process, when the shaft rotates, the shaft sleeve rotates along the circumferential direction, the inclined plane structure is arranged on the shaft sleeve disclosed in the embodiment, the inclined plane can transmit the rotation to the end cover, and the end cover is fixed on the supporting seat by the screw and the nut, so that the circumferential movement of the shaft sleeve can be effectively restrained; in addition, the axial movement of the sleeve is effectively restrained due to the end cap.
to sum up, can make the axle sleeve also take place to rotate to a certain extent at centraxonial rotation of prior art to cause the friction between axle and the axle sleeve, make the axle sleeve appear that axial or circumference are not hard up, and the utility model provides a restraint structure of slip axle sleeve, the utility model provides a well axle sleeve comprises triplex, axle sleeve A, axle sleeve B and end cover promptly, and axle sleeve A right-hand member face be the inclined plane, two terminal surfaces of axle sleeve B all be the inclined plane, the left end of end cover be the inclined plane, the end cover is fixed on the supporting seat, therefore the axle sleeve can transmit this kind of rotation for the end cover when rotating on the inclined plane, the end cover is owing to fix on the supporting seat, so circumference and the axial motion that can effectual restraint axle sleeve, thereby avoided the friction between axle and the axle sleeve.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a slip axle sleeve restraint structure which characterized in that: the constraint structure of the sliding shaft sleeve comprises a supporting seat, a shaft sleeve A, a shaft sleeve B and an end cover; the shaft is fixedly arranged on the supporting seat, the shaft sleeve A is arranged on the left side of the shaft, the shaft sleeve B is arranged in the middle of the shaft, the end cover is arranged on the right side of the shaft, the end cover is fixedly arranged on the supporting seat through a screw, and the shaft is fixedly arranged on the supporting seat through a nut; the right end face of the shaft sleeve A is an inclined plane, the two end faces of the shaft sleeve B are inclined planes, and the left end of the end cover is an inclined plane; the left end inclined plane of the shaft sleeve B is in butt joint with the right end inclined plane of the shaft sleeve A, and the left end inclined plane of the end cover is in butt joint with the right end inclined plane of the shaft sleeve B.
2. The sliding bushing restraining structure according to claim 1, wherein: the inclined plane angle of the shaft sleeve A, the shaft sleeve B and the end cover is 76 degrees.
3. The sliding bushing restraining structure according to claim 1, wherein: the material of the shaft is 40 Cr.
4. The sliding bushing restraining structure according to claim 1, wherein: the shaft surface is a zinc coating.
5. The sliding bushing restraining structure according to claim 1, wherein: the shaft sleeve is made of copper alloy.
6. The sliding bushing restraining structure according to claim 1, wherein: the left end of the end cover is provided with two screw ports, and the end cover is fixed on the supporting seat through two screws.
7. The sliding bushing restraining structure according to claim 1, wherein: the nut is fixedly arranged at the right end of the shaft.
8. The sliding bushing restraining structure according to claim 1, wherein: the inner diameters of the shaft sleeve A, the shaft sleeve B and the end cover are equal to the outer diameter of the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920392759.7U CN209743404U (en) | 2019-03-26 | 2019-03-26 | sliding shaft sleeve restraint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920392759.7U CN209743404U (en) | 2019-03-26 | 2019-03-26 | sliding shaft sleeve restraint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743404U true CN209743404U (en) | 2019-12-06 |
Family
ID=68718492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920392759.7U Active CN209743404U (en) | 2019-03-26 | 2019-03-26 | sliding shaft sleeve restraint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743404U (en) |
-
2019
- 2019-03-26 CN CN201920392759.7U patent/CN209743404U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528437 First and Second Floors of A3 Building No.6 Shennong Road, Zhongshan Torch Development Zone, Guangdong Province Patentee after: Guangdong Mingfeng Medical Technology Co.,Ltd. Address before: 528437 First and Second Floors of A3 Building No.6 Shennong Road, Zhongshan Torch Development Zone, Guangdong Province Patentee before: ZHONGSHAN MINFOUND MEDICAL EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |