CN222254773U - Oldham coupling - Google Patents
Oldham coupling Download PDFInfo
- Publication number
- CN222254773U CN222254773U CN202421150405.9U CN202421150405U CN222254773U CN 222254773 U CN222254773 U CN 222254773U CN 202421150405 U CN202421150405 U CN 202421150405U CN 222254773 U CN222254773 U CN 222254773U
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- CN
- China
- Prior art keywords
- cross
- block
- coupling
- connecting arm
- connecting shaft
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Links
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 238000006880 cross-coupling reaction Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 102000004315 Forkhead Transcription Factors Human genes 0.000 description 8
- 108090000852 Forkhead Transcription Factors Proteins 0.000 description 8
- 210000001503 joint Anatomy 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
本实用新型公开了一种十字联轴器，包括一对连轴块和十字块，所述的十字块包括有基体，所述的基体的四面分别设置有连接轴，所述的连轴块上设置有连接臂，所述的连接轴与连接臂可滑动配合；装配后，所述的连接臂的内表面与十字块的基体之间留有间隙。本实用新型的优点在于：结构简单、合理，结构简单、合理，其包括一对连轴块和十字，装配后，连接臂的内表面与十字块的基体之间留有间隙，使得连接轴与连接臂可相对滑动，通过滑动配合，能够在两个轴的连接时具有一定的调节范围，且连接轴与连接臂为平移滑动，能够保证安装后的平行度，提高传动效率。
The utility model discloses a cross coupling, including a pair of coupling blocks and a cross block, the cross block including a base, the four sides of the base are respectively provided with connecting shafts, the coupling block is provided with connecting arms, the connecting shaft and the connecting arm can be slidably matched; after assembly, a gap is left between the inner surface of the connecting arm and the base of the cross block. The advantages of the utility model are: simple and reasonable structure, simple and reasonable structure, it includes a pair of coupling blocks and a cross, after assembly, a gap is left between the inner surface of the connecting arm and the base of the cross block, so that the connecting shaft and the connecting arm can slide relative to each other, through sliding fit, it can have a certain adjustment range when connecting the two shafts, and the connecting shaft and the connecting arm are translational sliding, which can ensure the parallelism after installation and improve the transmission efficiency.
Description
Technical Field
The utility model relates to the technical field of shaft coupling manufacturing, in particular to an Oldham coupling.
Background
The cross coupling is used for connection transmission between shafts, for example, in the patent application with the application number of CN202023000634.7 being a cross universal coupling, a cross universal coupling is disclosed, and comprises a driving end fork head, a driving end middle joint connected with the driving end fork head through a cross block, a driven end middle joint connected with the driving end middle joint through a connecting rod, and a driven end fork head connected with the driven end middle joint through the cross block, wherein mounting holes are formed in the top surface of the cross block and two opposite side surfaces perpendicular to the top surface, the driving end fork head and the driving end middle joint are connected through a fastening device penetrating through the mounting holes in the cross block, and the driven end fork head and the driven end middle joint are connected through a fastening device penetrating through the mounting holes in the cross block. However, the cross block is attached to the inner surface of the fork head, and the fork head is in rotary fit with the cross block, so that the parallelism between the two shafts cannot be ensured, and the acting loss can be caused during force transmission to reduce the efficacy, so that the structure of the fork head needs to be further improved.
Disclosure of utility model
The utility model aims to overcome the defects, and discloses the cross coupling which has a simple and reasonable structure, is convenient to assemble and can ensure the parallelism of two shafts.
The technical scheme of the utility model is realized as follows:
The cross coupling comprises a pair of connecting shaft blocks and a cross block, wherein each cross block comprises a base body, connecting shafts are arranged on four sides of each base body, connecting arms are arranged on the connecting shaft blocks, the connecting shafts are in sliding fit with the connecting arms, and gaps are reserved between the inner surfaces of the connecting arms and the base bodies of the cross blocks after the cross coupling is assembled.
The measures for further optimizing the technical scheme are as follows:
As an improvement, the connecting arm is provided with an assembly hole, and a shaft sleeve is arranged between the assembly hole and the connecting shaft. The shaft sleeve is arranged, so that the wear resistance and the sliding smoothness between the connecting arm and the assembly hole can be improved.
As an improvement, the connecting arm is detachably matched with the connecting shaft block, positioning pins are arranged on the connecting arm, and positioning holes are correspondingly formed in the connecting shaft block. The positioning pin is matched with the positioning hole, so that the assembly between the connecting arm and the connecting shaft block is convenient.
As an improvement, the connecting shaft block comprises a connecting shaft part, and the connecting shaft part is provided with a deformation groove along the length direction. The deformation groove is arranged, so that the connecting shaft part can better clamp the shaft, and the connection reliability is improved.
As an improvement, the connecting shaft part is provided with a pair of fixing pieces with opposite screwing directions. By the arrangement, the stress can be balanced.
As an improvement, the connecting arm is connected and fixed with the connecting shaft block through a fixing piece.
As an improvement, the fixing pieces are provided with stop washers.
As an improvement, the base body is in a frame-shaped structure, and the connecting shaft is arranged in the middle of four sides of the base body. The frame-shaped structure is adopted, so that the weight of the connecting shaft block can be reduced, and the overall weight of the coupler is reduced.
As an improvement, the cross block is of an integrally formed integral structure.
Compared with the prior art, the utility model has the advantages that:
The cross coupling is simple and reasonable in structure, comprises a pair of connecting shaft blocks and a cross, after assembly, a gap is reserved between the inner surface of each connecting arm and the matrix of each cross block, so that each connecting shaft and each connecting arm can slide relatively, a certain adjusting range can be provided when the two shafts are connected through sliding fit, the connecting shafts and the connecting arms slide in a translational mode, parallelism after assembly can be guaranteed, and transmission efficiency is improved.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a cross-sectional view of A-A of FIG. 2;
fig. 4 is an exploded view of the present utility model.
The names of the reference numerals in the drawings of the present utility model are:
The connecting shaft block 1, the positioning hole 1a, the connecting arm 11, the assembly hole 11a, the connecting shaft part 12, the deformation groove 12a, the cross block 2, the gap 2a, the base 21, the connecting shaft 22, the shaft sleeve 3, the fixing piece 4 and the anti-return washer 41.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings:
The following description is presented to enable one of ordinary skill in the art to practice the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate orientations or positions based on the orientation or positional relationship shown in the drawings, which are merely for convenience in describing the present simplified description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms are not to be construed as limiting the present utility model.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
As shown in fig. 1 to 4, the cross coupling comprises a pair of connecting shaft blocks 1 and a cross block 2, wherein the cross block 2 comprises a base body 21, connecting shafts 22 are respectively arranged on four sides of the base body 21, connecting arms 11 are arranged on the connecting shaft blocks 1, the connecting shafts 22 are slidably matched with the connecting arms 11, and after the cross coupling is assembled, gaps 2a are reserved between the inner surfaces of the connecting arms 11 and the base body 21 of the cross block 2.
The connecting arm 11 is provided with an assembly hole 11a, and a shaft sleeve 3 is arranged between the assembly hole 11a and the connecting shaft 22. The shaft sleeve 3 is made of brass, has good wear resistance, and the arrangement of the shaft sleeve 3 can not only improve the wear resistance, but also improve the smoothness of sliding between the connecting shaft 22 and the connecting arm 11.
The connecting arm 11 is detachably matched with the connecting shaft block 1, positioning pins 11b are arranged on the connecting arm 11, and positioning holes 1a are correspondingly formed in the connecting shaft block 1. The connecting arm 11 and the connecting shaft block 1 facilitate the assembly of the coupler.
When the connecting arm 11 is fixedly installed with the connecting shaft block 1, the positioning pin 11b is matched with the positioning hole 1a to position, and then the connecting arm is fixedly connected with the fixing piece 4. The fixing members 4 are each provided with a retaining washer 41 to prevent loosening thereof, thereby improving fixing reliability.
The connecting shaft block 1 comprises a connecting shaft part 12, and the connecting shaft part 12 is provided with a deformation groove 12a along the length direction.
The connecting shaft part 12 is provided with a pair of fixing pieces 4 which are screwed in opposite directions. The two fixing pieces 4 are screwed in relatively, so that the stress is balanced, and the fixing is more reliable.
The fixing member 4 is preferably a bolt.
The base 21 is in a frame structure, and the connecting shaft 22 is arranged in the middle of four sides of the base 21.
The cross block 2 is of an integrally formed integral structure.
The base 21 has a frame-shaped structure, and can reduce the weight of the cross 2, thereby reducing the overall weight of the coupling.
The using method comprises the following steps:
One shaft is inserted into the through hole of the connecting shaft part 12 of one connecting shaft block 1 and is fixed by bolts, and the other shaft is inserted into the through hole of the connecting shaft part 12 of the other connecting shaft block 1 and is fixed by bolts, so that the installation is very convenient.
After the cross coupling is assembled, a gap 2a is reserved between the inner surface of the connecting arm 11 and the matrix 21 of the cross block 2, that is, the relative position between the two connecting shaft blocks 1 can be adjusted within a certain range, so that the positions of the two shafts have a certain adjusting range, and the connection assembly is more convenient. Due to the gap 2a, the connecting shaft block 1 and the cross block 2 can slide relatively, so that the connecting shaft block has certain adjustability. But the connecting shaft block 1 and the cross block 2 slide in a translation way, so that the parallelism between the two shafts can be ensured, the waste of work is reduced, and the transmission efficiency is improved.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421150405.9U CN222254773U (en) | 2024-05-24 | 2024-05-24 | Oldham coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421150405.9U CN222254773U (en) | 2024-05-24 | 2024-05-24 | Oldham coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222254773U true CN222254773U (en) | 2024-12-27 |
Family
ID=93991324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421150405.9U Active CN222254773U (en) | 2024-05-24 | 2024-05-24 | Oldham coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222254773U (en) |
-
2024
- 2024-05-24 CN CN202421150405.9U patent/CN222254773U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |