CN115789118B - Split elastic coupling, transmission mechanism and equipment - Google Patents
Split elastic coupling, transmission mechanism and equipment Download PDFInfo
- Publication number
- CN115789118B CN115789118B CN202211343055.3A CN202211343055A CN115789118B CN 115789118 B CN115789118 B CN 115789118B CN 202211343055 A CN202211343055 A CN 202211343055A CN 115789118 B CN115789118 B CN 115789118B
- Authority
- CN
- China
- Prior art keywords
- elastic
- shaft sleeve
- joint shaft
- claws
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a split elastic coupler, a transmission mechanism and equipment, and belongs to the technical field of couplers. The split elastic coupling comprises: the first joint shaft sleeve is integrated to the first rotating shaft, and a plurality of first convex claws are uniformly arranged on the first joint shaft sleeve along the circumferential direction; the second joint shaft sleeve is integrated to the second rotating shaft, and a plurality of second convex claws are uniformly arranged on the second joint shaft sleeve along the circumferential direction; and the elastic blocks are elastic and arranged between the first joint shaft sleeve and the second joint shaft sleeve, are hollow and are nested on the first convex claw or the second convex claw. The whole elastic block is changed into a plurality of elastic blocks, when a certain petal of the elastic block is damaged or worn seriously, only the elastic block with serious damage or wear needs to be replaced, and other elastic blocks can be reused.
Description
Technical Field
The invention belongs to the technical field of couplings, and particularly relates to a split elastic coupling, a transmission mechanism and equipment.
Background
Elastic couplings are very common parts in mechanical structures, and are used to couple two shafts (a driving shaft and a driven shaft) in different mechanisms for common rotation to transmit torque. Meanwhile, the device has the function of compensating axial, angular and radial offset between the driving shaft and the driven shaft caused by manufacturing errors, installation errors, bearing deformation, temperature change and the like. In high-speed power transmission, the elastic coupling also has the functions of buffering, damping and improving the dynamic performance of the shafting.
Conventional elastic couplings, such as quincuncial elastic couplings and star-shaped elastic couplings, are shown in fig. 1 and 2, wherein the quincuncial elastic coupling includes: chinese patent CN200920041451.4, for example, discloses a crane coupling; and as Chinese patent CN201020533472.0, a plum blossom type elastic coupling is disclosed.
Wherein the star elastic coupling comprises: chinese patent CN201510989106.3, for example, discloses an elastic coupling comprising a first coupling half, a second coupling half and a rubber pad; the first half coupling and the second half coupling have the same structure; the first half coupler is made of stainless steel; the first half coupler is provided with a groove part and a protruding part; the groove part and the protruding part are arranged at intervals; the first half coupler is provided with a shaft hole; the shaft hole is provided with a key slot; the rubber pad is arranged between the first half coupling and the second half coupling and is attached to the groove part; the shaft surface of the first half coupler is provided with a screw hole, and the screw hole is communicated with the shaft hole; the center of the screw hole coincides with the center of the key slot; the height of the bulge does not exceed the thickness of the rubber pad; the protruding part is provided with a chamfer. As another disclosure, chinese patent CN201120082853.6 discloses an elastomer structure of a coupling, which mainly comprises a ring body and a plurality of teeth structures connected around the ring body, wherein the teeth are formed with at least one hollow portion, and at least one supporting plate is formed in each hollow portion, so that the supporting plate is connected to two corresponding side walls of the hollow portion. As further disclosed in chinese patent CN201110413863.8, an elastic coupling comprises a main coupling sleeve and a secondary coupling sleeve, the opposite ends of the main coupling sleeve and the secondary coupling sleeve are respectively provided with a fluted disc, the opposite surfaces of the two fluted discs are uniformly distributed with mutually meshed straight teeth, a circumferential gap is arranged between the mutually meshed adjacent straight teeth, the value range of the circumferential gap is 0.1mm-2mm, arc-shaped grooves are axially arranged on the meshing surfaces of the adjacent straight teeth, and an elastomer is arranged in a cavity formed by the adjacent arc-shaped grooves.
Chinese patent CN201380078843.7, for example, discloses a coupling structure and a power steering device, which are higher in durability and gradually increase in rotational force to be transmitted, the coupling structure including a first engaging member, a second engaging member, and an elastic member; the first engagement member includes a first body and a first engagement claw; the second engagement member includes a second body and a second engagement claw; the elastic member is disposed between the first engagement member and the second engagement member in the circumferential direction.
For example, chinese patent No. cn202010350868.X discloses an assembled elastic coupling, in which a first shaft drives a second shaft to rotate through an adjusting structure, and manufacturing and installation errors between the first shaft and the second shaft can be compensated through the adjusting structure; the adjusting structure comprises a first structure, the first structure is contacted with a second structure through an elastic piece, the first structure is arranged on a first shaft, and the second structure is arranged on a second shaft.
The above-mentioned patent is to put the whole elastomer between the claws of the left and right shaft sleeves, and the elastomer is a whole, in many cases, when a certain petal of the elastomer is damaged or worn seriously, the whole elastomer needs to be replaced, so that the replacement time is long and the maintenance cost is high.
Disclosure of Invention
1. Problems to be solved
Aiming at the problem of high replacement cost caused by damage of the elastic block in the prior art, the invention provides the split elastic coupling which is convenient to replace and reduces the cost.
Another object of the invention is to provide a transmission mechanism and a device with the split elastic coupling.
2. Technical proposal
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the split elastic coupling of the present invention comprises: the first joint shaft sleeve is integrated to the first rotating shaft, and a plurality of first convex claws are uniformly arranged on the first joint shaft sleeve along the circumferential direction;
the second joint shaft sleeve is integrated to the second rotating shaft, and a plurality of second convex claws are uniformly arranged on the second joint shaft sleeve along the circumferential direction;
and the elastic blocks are elastic and arranged between the first joint shaft sleeve and the second joint shaft sleeve, are hollow and are nested on the first convex claw or the second convex claw.
In one possible embodiment of the present invention, the first engagement sleeve and the second engagement sleeve are symmetrical, and the longitudinal section of the first claw/the second claw is trapezoidal and has a mounting stop surface formed thereon.
In one possible implementation manner of the invention, the elastic block comprises a base body, wherein a mounting hole is formed in the center of the base body, the cross section of the mounting hole is trapezoid, two convex edges are formed on one side of the base body, and the height of each convex edge is consistent with that of the mounting stop surface.
In one possible embodiment of the present invention, the mounting hole is linearly tapered in a lateral direction of the elastic block and away from the side of the rib.
In one possible embodiment of the present invention, the linearity is a linear expansion.
In one possible embodiment of the invention, the mounting stop surface is an arcuate surface, a beveled surface or a concave surface.
In one possible embodiment of the present invention, the first/second engagement sleeves are formed with a protective housing extending along an outer edge.
In one possible implementation manner of the invention, the first convex claw corresponds to the second convex claw, the second convex claw on the second joint shaft sleeve is embedded into a notch between adjacent first convex claws on the first joint shaft sleeve, a containing space is formed between the first convex claw and the second convex claw, and an elastic block is tightly embedded in the containing space.
The invention also provides a transmission mechanism with the split elastic coupling
The invention also provides equipment with the transmission mechanism.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
according to the split elastic coupling, the whole elastic block is changed into a plurality of elastic blocks, when a certain petal of the elastic block is damaged or worn seriously, only the damaged or worn elastic block needs to be replaced, and other elastic blocks can be reused; the service life of the elastic block is prolonged, and the production cost is effectively saved.
Drawings
The technical solution of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for the purpose of illustration only and thus are not limiting the scope of the present invention. Moreover, unless specifically indicated otherwise, the drawings are intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of a prior art quincuncial elastic coupling;
FIG. 2 is a schematic view of a prior art star elastomeric coupling;
FIG. 3 is a schematic view of the split elastic coupling of the present invention;
FIG. 4 is an assembly view of the split elastic coupling of the present invention;
FIG. 5 is a schematic view of a first joint sleeve according to the present invention;
FIG. 6 is a front view of a first adapter sleeve of the present invention;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;
FIG. 8 is a schematic view of the structure of the elastic block of the present invention;
FIG. 9 is a cross-sectional view of an elastomeric block of the present invention;
fig. 10 is a front view of the split elastic coupling of the present invention.
Reference numerals illustrate:
10. a first engagement sleeve; 11. a first rotating shaft; 12. a first claw; 121. installing a stop surface; 13. a protective housing;
20. a second engagement sleeve; 21. a second rotating shaft; 22. a second claw;
30. an elastic block; 31. a base body, 32, and a mounting hole; 33. a rib.
Detailed Description
The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration exemplary embodiments in which the invention may be practiced. While these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it is to be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the invention. The following more detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely illustrative and not limiting of the invention's features and characteristics in order to set forth the best mode of carrying out the invention and to sufficiently enable those skilled in the art to practice the invention. Accordingly, the scope of the invention is limited only by the attached claims.
The following detailed description and example embodiments of the invention may be better understood when read in conjunction with the accompanying drawings, in which elements and features of the invention are identified by reference numerals.
As shown in fig. 3 to 10, the split elastic coupling of the present embodiment can be used for a large-sized coiling apparatus such as a hot-rolled coil, a finishing mill, or the like. The split elastic coupling comprises:
the first joint shaft sleeve 10 is integrated to the first rotating shaft 11, and a plurality of first convex claws 12 are uniformly arranged on the first joint shaft sleeve 10 along the circumferential direction;
the second engaging sleeve 20, the second engaging sleeve 20 is integrated to the second rotating shaft 21, the second engaging sleeve 20 is uniformly provided with a plurality of second claws 22 along the circumferential direction;
in this embodiment, the first claws 12 correspond to the second claws 22, the second claws 22 on the second joint sleeve 20 are embedded into gaps between adjacent first claws 12 on the first joint sleeve 10, and an accommodating space is formed between the first claws 12 and the second claws 22, and the elastic block 30 is tightly embedded in the accommodating space; the first shaft 11 and the second shaft 21 are hollow, with or without a key way in the inner bore, and are fitted with shafts.
The elastic block 30 has elasticity, and may be made of rubber, nylon, or polyurethane; and is disposed between the first engagement collar 10 and the second engagement collar 20, the elastic block 30 is hollow and is nested on the first claw 12 or the second claw 22.
The first joint sleeve 10, the first rotating shaft 11, the second joint sleeve 20, the second rotating shaft 21, the first convex claw 12 and the second convex claw 22 are made of 45, 42CrMo, 38CrMoAl, 40CrNiMoA or stainless steel, and the preferred stainless steel materials are adopted, so that the torque bearing capacity and the rigidity are improved, and the corrosion resistance of the coupling is improved. In addition, according to the prior art, the bearing capacity and the corrosion resistance can be improved by adopting different heat treatment modes of the same material.
As shown in fig. 5 to 7, in the present embodiment, the first coupling sleeve 10 and the second coupling sleeve 20 are preferably symmetrical, and furthermore, the first coupling sleeve 10 and the second coupling sleeve 20 may be asymmetrical, as determined by the field device. Further, as can be seen in connection with fig. 6, the longitudinal cross-section of the first and second prongs 12, 22 is trapezoidal (nearly trapezoidal) and has a mounting stop surface 121 formed thereon, the mounting stop surface 121 being an arcuate, beveled or concave surface, and the preferred mounting stop surface 121 being an arcuate surface.
In addition, the longitudinal cross section of the first and second prongs 12, 22 may be of other shapes and the transverse cross section may be of various shapes, as long as it is consistent with the mounting hole 32.
When the elastic block 30 is nested on the first claw 12/the second claw 22, a part of the edge of one side of the elastic block is not contacted with the first joint sleeve 10/the second joint sleeve 20, but is connected with the installation stop surface 121, so that the elastic block 30 can be positioned on one hand, and an avoidance space can be provided for the extrusion deformation of the elastic block 30 on the other hand.
According to the feedback of the effect of the field use, when the elastic block 30 is damaged, the elastic block 30 can be quickly replaced, and the main analysis reason is that the installation stop surface 121 is in elastic contact with the elastic block 30, so that compared with other parts, the elastic block 30 is small in stress and free from adhesion, and convenience is provided for the disassembly of the elastic block 30.
In this embodiment, as shown in fig. 8 to 9, the elastic block 30 includes a base 31, preferably made of rubber, and a metal block may be built in the base 31 to ensure the shape fixation of the elastic block 30, where the base 31 is provided with a mounting hole 32 along the center, the cross-section of the mounting hole 32 is trapezoidal (nearly trapezoidal), two ribs 33 are formed on one side of the base 31, and the height (effective height) of the ribs 33 is consistent with that of the mounting stop surface 121.
The rib 33 described above can be in contact with the first engagement sleeve 10/second engagement sleeve 20, and may form a bond with the first engagement sleeve 10/second engagement sleeve 20 in a pressed state. Therefore, the rib 33 can disperse the pressure applied to the elastic block 30, and avoid deformation caused by the elastic block 30 being pressed.
Further, by analyzing the stress of the coupling according to the present invention, it can be found that the deformation of the elastic block 30 is generally a transverse deformation, so that four corners of the edge of the mounting hole 32 are easily torn, and the service life of the elastic block 30 is greatly shortened, and on this basis, the structure of the mounting hole 32 is optimized by analyzing the stress of the elastic block 30 and combining with feedback of the use in the field, that is, the size of the mounting hole 32 along the transverse direction of the elastic block 30 and away from the side of the protruding rib 33 is gradually enlarged linearly, and the above linearity is enlarged linearly, for example, the formula is satisfied: k=ax+b, a is a design coefficient, and b is a constant. In this embodiment, a is 0.01 and b is 0.
It should be noted that, the size of the mounting hole 32 is specifically determined by the area, that is, the length of four sides of the trapezoid, in other words, the inner side area of the mounting hole 32 is smaller than the outer side area, and the mounting hole 32 and the first claw 12/the second claw 22 are in partial clearance fit, so that an avoidance space is provided for extrusion stress, four corner tearing phenomena of the mounting hole 32 are effectively reduced, and the service life of the elastic block 30 is ensured to meet the set requirement.
The design of the mounting holes 32 reduces friction during installation, facilitates quick installation, and saves time.
Considering that the coupling of the present invention is generally used in a multi-oil multi-ash environment, in order to avoid exposing the elastic block 30 to the outside, the first coupling sleeve 10/the second coupling sleeve 20 are extended along the outer edge to form the protective housing 13, so as to wrap the elastic block 30, thereby effectively preventing dust from entering the accommodating space.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (8)
1. A split elastic coupling, comprising:
the first joint shaft sleeve (10), the first joint shaft sleeve (10) is integrated to the first rotating shaft (11), and a plurality of first convex claws (12) are uniformly arranged on the first joint shaft sleeve (10) along the circumferential direction;
the second joint shaft sleeve (20), the second joint shaft sleeve (20) is integrated to the second rotating shaft (21), and a plurality of second convex claws (22) are uniformly arranged on the second joint shaft sleeve (20) along the circumferential direction;
and a plurality of elastic blocks (30), wherein the elastic blocks (30) have elasticity and are arranged between the first joint shaft sleeve (10) and the second joint shaft sleeve (20), and the elastic blocks (30) are hollow and are nested on the first convex claw (12) or the second convex claw (22);
the first joint shaft sleeve (10) and the second joint shaft sleeve (20) are of symmetrical structures, the longitudinal section of the first convex claw (12)/the second convex claw (22) is trapezoidal, and an installation stop surface (121) is formed on the first convex claw;
the elastic block (30) comprises a base body (31), a mounting hole (32) is formed in the center of the base body (31), the section of the mounting hole (32) is trapezoid, two ribs (33) are formed on one side of the base body (31), and the heights of the ribs (33) are consistent with those of the mounting stop surface (121).
2. Split elastic coupling according to claim 1, characterized in that the mounting hole (32) is linearly and gradually enlarged in size in the lateral direction of the elastic block (30) and away from the side of the rib (33).
3. The split elastic coupling of claim 2, wherein the linearity is a linear expansion.
4. A split elastic coupling according to claim 3, characterized in that the mounting stop surface (121) is an arcuate, beveled or concave surface.
5. Split elastic coupling according to claim 4, characterized in that the first (10)/second (20) joint sleeve is formed with a protective housing (13) extending along the outer edge.
6. The split elastic coupling according to claim 1 or 2, wherein the first claws (12) correspond to the second claws (22), the second claws (22) on the second joint sleeve (20) are embedded into gaps between adjacent first claws (12) on the first joint sleeve (10), a containing space is formed between the first claws (12) and the second claws (22), and an elastic block (30) is tightly embedded in the containing space.
7. A transmission mechanism comprising a split elastic coupling according to any one of claims 1 to 6.
8. An apparatus having the transmission mechanism of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211343055.3A CN115789118B (en) | 2022-10-31 | 2022-10-31 | Split elastic coupling, transmission mechanism and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211343055.3A CN115789118B (en) | 2022-10-31 | 2022-10-31 | Split elastic coupling, transmission mechanism and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115789118A CN115789118A (en) | 2023-03-14 |
| CN115789118B true CN115789118B (en) | 2023-06-27 |
Family
ID=85434421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211343055.3A Active CN115789118B (en) | 2022-10-31 | 2022-10-31 | Split elastic coupling, transmission mechanism and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115789118B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117088532B (en) * | 2023-09-06 | 2024-03-19 | 东营佛思特生物工程有限公司 | Aeration tank for sewage treatment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4073688B2 (en) * | 2002-03-14 | 2008-04-09 | サンデン株式会社 | Power transmission mechanism |
| US6809440B2 (en) * | 2003-03-10 | 2004-10-26 | Buehler Motor, Inc. | Space-saving, damping coupling mechanism for worms in geared actuators |
| DE202008000772U1 (en) * | 2008-01-19 | 2008-04-10 | Ktr Kupplungstechnik Gmbh | Double tooth element for use in a dog clutch |
| CN201547152U (en) * | 2009-10-09 | 2010-08-11 | 陈万荣 | Cushioning shaft joint of micro-cultivating machine |
| CN101858390A (en) * | 2010-06-13 | 2010-10-13 | 太仓成铭液压机械有限公司 | Shaft coupling |
| CN201739367U (en) * | 2010-06-13 | 2011-02-09 | 太仓成铭液压机械有限公司 | Coupling |
| CN101893081A (en) * | 2010-07-23 | 2010-11-24 | 重庆隆鑫机车有限公司 | Driven gear of engine balance shaft |
| WO2015019496A1 (en) * | 2013-08-09 | 2015-02-12 | 株式会社ショーワ | Joint structure and power steering device |
| AT516397B1 (en) * | 2014-11-19 | 2016-05-15 | Miba Sinter Austria Gmbh | gearing |
-
2022
- 2022-10-31 CN CN202211343055.3A patent/CN115789118B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115789118A (en) | 2023-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115789118B (en) | Split elastic coupling, transmission mechanism and equipment | |
| US6142878A (en) | Flexible coupling with elastomeric belt | |
| US7980956B2 (en) | Sleeve and sleeve-type flexible shaft coupling | |
| US4708514A (en) | Resilient shaft coupling | |
| US20220099146A1 (en) | Flexible sleeve coupling radial tooth support cap and method | |
| US20180133767A1 (en) | Gear spindle and oil seal used therein | |
| US3313124A (en) | Flexible coupling | |
| US3793849A (en) | Shaft coupling and element therefor | |
| WO2016136355A1 (en) | Constant velocity universal joint | |
| JP4363025B2 (en) | Bush bearing | |
| EP0127588B1 (en) | Oil seal for lubricated track chain joints, particularly for track-type vehicles | |
| CN214578402U (en) | Coupling device | |
| GB2126690A (en) | Flexible coupling | |
| AU2018455574B2 (en) | Drum gear | |
| JP5758705B2 (en) | Gear spindle and oil seal used therefor | |
| CN214197026U (en) | Large-torque universal coupling | |
| JP4657897B2 (en) | Seal structure | |
| US20210285502A1 (en) | Flexible Reinforced Radial Spline Coupling and Method | |
| CN216519263U (en) | All-metal coupling capable of being used in narrow space | |
| CN218817712U (en) | Double-safety elastic coupling | |
| CN220452545U (en) | Anti-movement limiting elastic coupling | |
| CN212868198U (en) | Double-shaft bearing | |
| RU31416U1 (en) | The elastic coupling of the engineer Skuba I.S. | |
| CN113983078A (en) | All-metal coupling capable of being used in narrow space | |
| KR20220151763A (en) | Device for creep prevention of self-aligning bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |