CN211314883U - Elastic double-shaft coupling device - Google Patents
Elastic double-shaft coupling device Download PDFInfo
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- CN211314883U CN211314883U CN201921866165.1U CN201921866165U CN211314883U CN 211314883 U CN211314883 U CN 211314883U CN 201921866165 U CN201921866165 U CN 201921866165U CN 211314883 U CN211314883 U CN 211314883U
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- shaft
- coupler
- coupling device
- coupling
- bolt
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- 230000008878 coupling Effects 0.000 title claims abstract description 53
- 238000010168 coupling process Methods 0.000 title claims abstract description 53
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 53
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model provides an elasticity biax coupling device, it sets up the shaft coupling that sets up to the bellows through the middle part and realizes linkage and the moment of torsion transmission between two axles. The end parts of the shaft couplings are connected with the shafts in an expanding manner through bolts fixed at the end parts of the shaft couplings, and the loosening is prevented through gaskets on the bolts. The utility model discloses an elastic element such as packing ring and bellows realizes having axial, radial, the angular compensation performance of different degrees to the compensation of various relative displacement, still has damping, the cushioning effect of different degrees, can realize elasticity biax connection function.
Description
Technical Field
The utility model relates to the field of machining, especially, relate to an elasticity biax coupling device.
Background
In many mechanical structures of machining equipment, power and torque are required to be transmitted through a rotating shaft, for example, the torque is transmitted to a screw rod equivalently through a motor on a machine tool, and the torque in a reduction gearbox is multiplied from an input shaft and then transmitted to an output shaft and the like. There is a wide need in the mechanical field for a double shaft coupling to achieve torque transmission.
The traditional double-shaft coupling expansion device generally expands an outer shaft sleeve and one shaft at the same time, and then expands the other shaft. This expansion method has certain disadvantages: the coaxiality of the shaft expanded later and the shaft expanded earlier is guaranteed by the machining precision and the form and position tolerance of two parts of the inner expanding sleeve and the outer expanding sleeve, if the machining precision and the form and position tolerance of the parts are poor, the situation that the double shafts expanded tightly are not coaxial can be caused, the transmission of torque can be influenced by the two coaxial non-coaxial, and the shaft cracking phenomenon can be caused in serious cases.
In addition, the relative position of the two shafts in the conventional biaxial coupling expansion device is changed due to manufacturing and mounting errors, deformation of the bearings after bearing load, temperature change, and the like. In the use process, strict centering between the two shafts cannot be ensured, so that the transmission of torque is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the prior art, the utility model aims to provide an elastic double-shaft coupling device. The requirement that the double shafts are reliably connected and expanded under the condition of larger coaxial error is met through the arrangement of the elastic element, and the torque transmission capacity is improved.
To achieve the above object, the present invention provides an elastic biaxial coupling device, comprising: one end of the coupling is fixedly connected with the first shaft, the other end of the coupling is fixedly connected with the second shaft, and the middle part of the coupling is provided with a corrugated pipe; and bolts are respectively fixed at two ends of the coupler along the radial direction of the corrugated pipe, wherein the bolt fixed at one end of the coupler is in expansion connection with the first shaft, and the bolt fixed at the other end of the coupler is in expansion connection with the second shaft.
Optionally, the elastic biaxial coupling device described above, wherein the first shaft and the second shaft are both optical straight shafts; the first shaft and the second shaft are respectively provided with a connecting hole along the radial direction for the expansion connection of the bolt, and the bolt is respectively extended into the connecting hole by the coupler to fix the first shaft and the second shaft.
Optionally, in the elastic double-shaft coupling device, mounting holes into which the first shaft and the second shaft extend are respectively formed at two ends of the coupler along an axial direction of the coupler; the end parts of the first shaft and the second shaft respectively extend into the mounting holes; the connecting holes are arranged at the end parts of the first shaft and the second shaft, which extend into the mounting holes, and the connecting holes penetrate through the end parts of the first shaft and the second shaft and are vertical to the mounting holes; the bolts respectively penetrate through the mounting holes of the couplers vertically along the connecting holes and are respectively connected between the first shaft and the couplers and between the second shaft and the couplers.
Optionally, the elastic biaxial coupling device further includes a washer, and the washer abuts between the bolt and the first shaft and between the bolt and the second shaft.
Alternatively, the above elastic biaxial coupling device, wherein the washer is a spring washer.
Optionally, in the elastic biaxial coupling device, the bolt has a nut, and spring washers are respectively abutted between the nut and the first shaft and between the nut and the second shaft.
Compared with the prior art, the utility model has the following technical effects:
1. the utility model provides a simple structure, excellent performance and have elastic elasticity biax coupling device and realize that the connection between the axle expands tightly. The middle part of the shaft coupling is provided with a corrugated pipe to realize linkage and torque transmission between two shafts. The end parts of the shaft couplings are connected with the shafts in an expanding manner through bolts fixed at the end parts of the shaft couplings, and the loosening is prevented through gaskets on the bolts. The utility model realizes compensation of various relative displacements through the elastic elements such as the gasket, the bellows and the like, has axial, radial and angular compensation performances of different degrees, also has vibration reduction and buffering functions of different degrees, and can realize the elastic double-shaft coupling function;
2. the relative position of the left end and the right end in the coupler can be adjusted, and after the relative position is adjusted to a proper position, the double-shaft expansion function is realized through the combination of 2 groups of spring washers and bolts which are respectively arranged at the left end and the right end of the coupler, and power and torque are transmitted. The utility model discloses it is lower to the processing of part and the requirement of assembly, simple structure, the dependable performance.
3. The utility model relates to a mechanical structure device in the machining equipment has reduced design and manufacturing cost, is showing the reduction to processing, manufacturing and assembly requirement to this elasticity biax expands tight device simple structure, installs and removes the adjustment convenience, uses reliably, has certain commonality, practicality, novelty and good price/performance ratio, especially involves in the mechanical field that needs the moment of torsion transmission.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention for the purpose of explanation and not limitation of the invention. In the drawings:
fig. 1 is a schematic structural view of an elastic biaxial coupling device according to the present invention.
In the drawings, 1 denotes a first axis; 2 denotes a coupling; 3 denotes a second axis; 4 denotes a spring washer; and 5 denotes a bolt.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The meaning of "and/or" in the present invention means that they exist individually or both at the same time.
The meaning of "inside and outside" in the present invention means that the direction pointing to the inside of the coupling is inside, and vice versa, with respect to the elastic biaxial coupling device itself; and not to the specific limitations of the device mechanism of the present invention.
The utility model discloses in the meaning of "left and right" refer to the user just when the elasticity biax coupling device that the level set up, the user's the left side is left promptly, and the user's the right is right promptly, and not right the utility model discloses a device mechanism's specific injecing.
The term "connected" as used herein may mean either a direct connection between elements or an indirect connection between elements through other elements.
Referring to fig. 1, the present invention provides an elastic biaxial coupling device, comprising:
one end of the coupling 2 is fixedly connected with the first shaft 1, the other end of the coupling is fixedly connected with the second shaft 3, and the middle part of the coupling 2 is provided with a corrugated pipe;
and the bolts 5 are respectively fixed at the two ends of the coupler 2 along the radial direction of the corrugated pipe, wherein the bolt 5 fixed at one end of the coupler 2 is in expansion connection with the first shaft 1, and the bolt 5 fixed at the other end of the coupler 2 is in expansion connection with the second shaft 3.
In consideration of economic and simple processing, in order to facilitate processing and reduce cost, the first shaft 1 and the second shaft 3 in the structure can be both arranged as optical straight shafts; the first shaft 1 and the second shaft 3 are respectively provided with a connecting hole along the radial direction for the expansion connection of the bolt 5, and the bolt 5 is respectively extended into the connecting hole by the coupler 2 to fix the first shaft 1 and the second shaft 3.
Under some implementation modes, in order to fix the two shafts conveniently, mounting holes for the first shaft 1 and the second shaft 3 to extend into are respectively formed in two ends of the coupler 2 along the axial direction of the coupler. The end parts of the first shaft 1 and the second shaft 3 respectively extend into the mounting holes. The connecting holes on the shafts are respectively arranged at the end parts of the first shaft 1 and the second shaft 3 extending into the mounting holes, and the connecting holes penetrate through the end parts of the first shaft 1 and the second shaft 3 and are vertical to the mounting holes. From this, bolt 5 can follow respectively the connecting hole runs through perpendicularly the mounting hole of shaft coupling 2 is connected respectively the primary shaft 1 with between the shaft coupling 2, and the secondary shaft 3 with between the shaft coupling 2, make the periphery of primary shaft 1, secondary shaft 3 laminate with the mounting hole about shaft coupling 2 respectively, make shaft coupling 2 hold the formula structure tightly through the bellows and expand and connect fixed each axle, transmission moment of torsion and rotation.
In another embodiment, the elastic biaxial coupling device may be provided with a washer structure such as a spring washer 4 in addition to the above-described structure. The washers respectively abut between the nut of the bolt 5 and the first shaft 1, and between the nut of the bolt 5 and the second shaft 3. From this, bellows enclasping formula shaft coupling 2 installs in the centre of primary shaft 1, secondary shaft 3, after adjusting the suitable axial position of shaft coupling 2, fastens 2 group spring washers 4 and bolts 5 about, realizes the biax connection function of expanding tightly. The elastic element formed by the gasket and the corrugated pipe has compensation capability on various relative displacements, has different degrees of axial, radial and angular compensation performance, has different degrees of vibration reduction and buffering functions, and realizes an elastic double-shaft coupling function.
The utility model has the advantages that:
the left and right positions of the coupler can be adjusted, after the coupler is adjusted to a proper position, the double-shaft expansion function is realized through the left and right 2 groups of spring washers and bolts, and power and torque are transmitted. The spring washer can play a role in preventing looseness.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (6)
1. An elastic biaxial coupling device, comprising:
one end of the coupling (2) is fixedly connected with the first shaft (1), the other end of the coupling is fixedly connected with the second shaft (3), and the middle part of the coupling (2) is provided with a corrugated pipe;
and the bolts (5) are respectively fixed at the two ends of the coupler (2) along the radial direction of the corrugated pipe, wherein the bolts (5) fixed at one end of the coupler (2) are connected with the first shaft (1) in an expanding manner, and the bolts (5) fixed at the other end of the coupler (2) are connected with the second shaft (3) in an expanding manner.
2. Elastic biaxial coupling device as defined in claim 1, characterised in that said first shaft (1) and second shaft (3) are both optically straight shafts; the first shaft (1) and the second shaft (3) are respectively provided with a connecting hole along the radial direction for the expansion connection of the bolt (5), and the bolt (5) is respectively extended into the connecting hole by the coupler (2) to be fixed with the first shaft (1) and the second shaft (3).
3. An elastic biaxial coupling device as defined in claim 2, wherein both ends of said coupling (2) are respectively provided with mounting holes along its axial direction into which said first shaft (1) and said second shaft (3) extend;
the end parts of the first shaft (1) and the second shaft (3) respectively extend into the mounting holes; the connecting holes are formed in the end parts, extending into the mounting holes, of the first shaft (1) and the second shaft (3), and penetrate through the end parts of the first shaft (1) and the second shaft (3) and are perpendicular to the mounting holes;
the bolts (5) respectively penetrate through the mounting holes of the coupler (2) vertically along the connecting holes and are respectively connected between the first shaft (1) and the coupler (2) and between the second shaft (3) and the coupler (2).
4. Elastic biaxial coupling device as claimed in claim 3, characterized in that it also comprises washers which abut between said bolt (5) and said first shaft (1) and between said bolt (5) and said second shaft (3).
5. Elastic biaxial coupling device as defined in claim 4, characterised in that said washer is a spring washer (4).
6. Elastic biaxial coupling device as defined in claim 4, characterised in that said bolt (5) has a nut with spring washers (4) abutting between said nut and said first shaft (1) and between said nut and said second shaft (3), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866165.1U CN211314883U (en) | 2019-11-01 | 2019-11-01 | Elastic double-shaft coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921866165.1U CN211314883U (en) | 2019-11-01 | 2019-11-01 | Elastic double-shaft coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211314883U true CN211314883U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921866165.1U Expired - Fee Related CN211314883U (en) | 2019-11-01 | 2019-11-01 | Elastic double-shaft coupling device |
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| Country | Link |
|---|---|
| CN (1) | CN211314883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453969A (en) * | 2020-11-09 | 2021-03-09 | 上海屹亚精工机械有限公司 | Workpiece clamping device |
-
2019
- 2019-11-01 CN CN201921866165.1U patent/CN211314883U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112453969A (en) * | 2020-11-09 | 2021-03-09 | 上海屹亚精工机械有限公司 | Workpiece clamping device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |