CN103256315A - Coupler - Google Patents
Coupler Download PDFInfo
- Publication number
- CN103256315A CN103256315A CN2013101998398A CN201310199839A CN103256315A CN 103256315 A CN103256315 A CN 103256315A CN 2013101998398 A CN2013101998398 A CN 2013101998398A CN 201310199839 A CN201310199839 A CN 201310199839A CN 103256315 A CN103256315 A CN 103256315A
- Authority
- CN
- China
- Prior art keywords
- external splines
- internal spline
- slave block
- tooth
- piece
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
- F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/54—Couplings comprising a chain or strip surrounding two wheels arranged side by side and provided with teeth or the equivalent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
- F16D3/725—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts with an intermediate member made of fibre-reinforced resin
Abstract
The invention discloses a coupler which comprises a drive block, a driven block and a connection portion used for connecting the drive block and the driven block. The drive block and the connection portion are detachably connected in a motion mutually limiting manner, and the connection portion and the driven block are detachably connected in a motion mutually limiting manner. The drive block and a motor output shaft are detachably connected in a motion mutually limiting manner, and the driven block and a worm shaft of a worm and gear reducer are detachably connected in a motion mutually limiting mode. The coupler is convenient to install, detachable and easy to operate. Due to the fact that a novel material is used, weight is light, the problem of a low reversing response speed of a coupler traditional structure is solved, meanwhile, manufacturing and assembling cost is reduced, and practicality is strong. The drive block and the driven block are identical in structure and simple in manufacturing technology, a mold can be formed in an injection mode at a time, and extra machining is not needed.
Description
Technical field
The present invention relates to mechanical transmission fields, relate in particular to a kind of coupling.
Background technique
Coupling is two axles that connect in the different institutions, makes it common rotation to transmit the mechanical parts of moment of torsion.
The servomechanism that the electric powered steering tubing string generally adopts turbine and worm decelerator to form, assist motor adopts coupling to be connected with worm-gear speed reducer.
Fig. 1 shows the structural representation of coupling of the worm shaft of the motor output shaft of connection assist motor at present commonly used and worm-gear speed reducer, as shown in Figure 1, described coupling is made up of three parts: initiatively piece 1 ', damping pad 2 ' and Slave Block 3 ' are formed.Wherein, initiatively piece 1 ' is processed with four rest shoes, and the mode that adopts spline to press-fit is connected with the motor output shaft of assist motor; Damping pad 2 ' adopts rubber material, and eight rectangular teeths are arranged, with staggered cooperation of rest shoe of rest shoe and the Slave Block 3 ' of active piece 1 ', the effect that has vibration damping and offset axial and radial clearance; Slave Block 3 ' is processed with four rest shoes, and the mode that adopts interference to press-fit is connected with the worm shaft of worm-gear speed reducer.
The defective of coupling of the prior art is:
(1) since initiatively piece 1 ' and the Slave Block 3 ' press-fit approach that all adopts interference fit be connected with corresponding, can't dismounting;
(2) initiatively the manufacturing of piece 1 ' and Slave Block 3 ' need be adopted special tooling and anchor clamps, and manufacturing process and assembly technology are all comparatively complicated, and cost is higher;
(3) initiatively piece 1 ' and Slave Block 3 ' all adopt steel material, and rotary inertia is bigger, and be bigger to the influence of coupling commutation speed of response.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of coupling is provided, it effectively reduces rotary inertia, has improved coupling commutation speed of response, and easy accessibility.
For achieving the above object, described coupling comprises active piece, Slave Block and the joint that is used for connecting active piece and Slave Block, is characterized in, between described active piece and the joint, and the mode of all moving each other with restriction between described joint and the Slave Block removably connects; Between described active piece and the motor output shaft, and the mode of all moving each other with restriction between the worm shaft of Slave Block and worm-gear speed reducer removably connects.
Preferably, the inwall of first manhole that has at described joint is provided with first internal spline, described active piece and Slave Block are cylindrical structural, circumferential surface at described active piece and Slave Block is respectively equipped with initiatively piece external splines and Slave Block external splines, and described active piece external splines and Slave Block external splines all are complementary with described first internal spline; And,
Described active piece has initiatively the part of piece external splines and the part that described Slave Block has the Slave Block external splines extends in described first manhole from two ends respectively, and removably is connected to limit the mode of moving each other with described joint with the cooperation of first internal spline with cooperation and the Slave Block external splines of first internal spline by active piece external splines accordingly.
Preferably, described active piece and Slave Block edge axis separately respectively offer second manhole and the 3rd manhole, inwall at described second manhole offers second internal spline, offers the 3rd internal spline at the inwall of described the 3rd manhole; Outer wall in the end of described motor output shaft is processed with second external splines, is processed with the 3rd external splines at the outer wall of described worm shaft; And,
One profile of tooth among described second internal spline and second external splines is straight-tooth, another profile of tooth is involute tooth, flank cooperation place at the key tooth of the key tooth of described second internal spline and second external splines forms the first interference district, and the magnitude of interference in the described first interference district is 0.04～0.08; And, one profile of tooth among described the 3rd internal spline and the 3rd external splines is straight-tooth, another profile of tooth is involute tooth, flank cooperation place at the key tooth of the key tooth of described the 3rd internal spline and the 3rd external splines forms the second interference district, and the magnitude of interference in the described second interference district is 0.04～0.08.
Preferably, described first magnitude of interference is 0.05; Described second magnitude of interference is 0.05.
Preferably, described first internal spline and initiatively between the piece external splines, between described first internal spline and the Slave Block external splines, between described second internal spline and second external splines and be filled with small amount of binder between described the 3rd internal spline and the 3rd external splines.
Preferably, described active piece has the initiatively part of piece external splines, and the length of part that has the Slave Block external splines with described Slave Block is identical, is half of length of described joint.
Preferably, described second internal spline, second external splines, the 3rd internal spline and the 3rd external splines all have 6 key teeth.
Preferably, described first internal spline, active piece external splines and Slave Block external splines all have 12 key teeth.
Preferably, described active piece and Slave Block are made by nylon material.
Preferably, described joint is by a kind of the making in the following material: glass fibre, hydrogenated nitrile-butadiene rubber, polyamide 66.
Beneficial effect of the present invention is:
(1) structure is easy for installation, and is detachable, easily operation;
(2) owing to use new material, weight is lighter, has solved the slow problem of conventional construction coupling commutation speed of response, has lowered manufacturing and assembly cost simultaneously, and practicability is stronger;
(3) initiatively piece is identical with the Slave Block structure and manufacturing process is simple, and mould once can molding and forming, need not extra machining.
Description of drawings
Fig. 1 shows the STRUCTURE DECOMPOSITION figure of coupling of the prior art.
Fig. 2 shows the structural representation of coupling of the present invention.
Fig. 3 shows the STRUCTURE DECOMPOSITION figure of coupling shown in Figure 2.
Fig. 4 shows coupling shown in Figure 3, and match with motor output shaft and the worm shaft structural representation at position of this coupling.
Fig. 5 shows the schematic representation of the interference fit between the active piece shown in Fig. 4 and the motor output shaft.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
See figures.1.and.2, described coupling comprises active piece 1, Slave Block 3 and the joint 2 that is used for connecting active piece 1 and Slave Block 3.Described active piece 1 and Slave Block 3 are made by the nylon material with the light advantages of high strength of quality.Described joint 2 is by a kind of the making in the following material: glass fibre, hydrogenated nitrile-butadiene rubber, polyamide 66.Because use new material, weight is lighter, solved the slow problem of conventional construction coupling commutation speed of response, lowered manufacturing and assembly cost simultaneously, practicability is stronger.
Between described active piece 1 and the joint 2, and the mode of all moving each other with restriction between described joint 2 and the Slave Block 3 removably connects; Between described active piece 1 and the motor output shaft 5, and the mode of all moving each other with restriction between the worm shaft 4 of Slave Block 3 and worm-gear speed reducer removably connects.Particularly:
With reference to Fig. 2, in one embodiment of the invention, the inwall of first manhole that has at described joint 2 is provided with first internal spline 21, described active piece 1 and Slave Block 3 are cylindrical structural, circumferential surface at described active piece 1 and Slave Block 3 is respectively equipped with initiatively piece external splines 11 and Slave Block external splines 31, and described active piece external splines 11 and Slave Block external splines 31 all are complementary with described first internal spline 21.Described active piece 1 has initiatively the part of piece external splines 11 and the part that described Slave Block 3 has Slave Block external splines 31 extends in described first manhole from two ends respectively, and removably is connected to limit the mode of moving each other with described joint 2 with the cooperation of first internal spline 21 with cooperation and the Slave Block external splines 31 of first internal spline 21 by active piece external splines 11 accordingly.Placement between described active piece 1, Slave Block 3 and the joint 2 can realize vibration damping, the effect that reduces noise and transmit moment of torsion, can eliminate the gap and the Problem of Failure that produce owing to input and output shaft disalignment simultaneously.
Especially, initiatively piece 1 has initiatively piece external splines 11, the Slave Block external splines 31 that Slave Block 3 has, and the width dimensions of first internal spline 21 of joint 2 is mainly determined by real work load and reliability, in a preferred embodiment of the present invention, described active piece 1 has initiatively, and the length of the part of piece external splines 11 is 7cm, the length that described Slave Block 3 has the part of Slave Block external splines 31 also is 7cm, the length of described joint 2 is 14cm, described active piece 1 has initiatively that the part of piece external splines 11 and the part that described Slave Block 3 has Slave Block external splines 31 have occupied the space of whole first manhole jointly, thereby has obtained reliable combination force.
With reference to Fig. 2 and Fig. 3, in one embodiment of the invention, described active piece 1 and Slave Block 3 edge axis separately respectively offer second manhole and the 3rd manhole, inwall at described second manhole offers second internal spline 12, offers the 3rd internal spline 32 at the inwall of described the 3rd manhole; Outer wall in the end of described motor output shaft 5 is processed with second external splines 51, is processed with the 3rd external splines 41 at the outer wall of described worm shaft 4.
With reference to Fig. 5, one profile of tooth among described second internal spline 12 and second external splines 51 is straight-tooth, another profile of tooth is involute tooth, flank cooperation place at the key tooth 511 of the key tooth 121 of described second internal spline 12 and second external splines 51 forms the first interference district 100, and the magnitude of interference in the described first interference district 100 is 0.04～0.08 to be preferably 0.05.And, cooperation between described the 3rd internal spline 32 and the 3rd external splines 41 is identical with the cooperation between second internal spline 12 and second external splines 51: one profile of tooth among described the 3rd internal spline 32 and the 3rd external splines 41 is straight-tooth, another profile of tooth is involute tooth, flank cooperation place at the key tooth of the key tooth of described the 3rd internal spline 32 and the 3rd external splines 41 forms the second interference district (not shown), and the magnitude of interference in the described second interference district is 0.04～0.08 to be preferably 0.05.Between above-mentioned active piece 1 and the motor output shaft 5, and the Placement between Slave Block 3 and the worm shaft 4 can guarantee good moment of torsion transmission, simultaneously, because the magnitude of interference in the first interference district 100 and the second interference district is less, therefore also can realize removably connecting between second internal spline 12 and second external splines 51 and between the 3rd internal spline 32 and the 3rd external splines 41.
Further, in order to prevent between the spline occurring axially coming off, between described first internal spline 21 and the active piece external splines 11, between described first internal spline 21 and the Slave Block external splines 31, between described second internal spline 12 and second external splines 51 and be filled with small amount of binder between described the 3rd internal spline 32 and the 3rd external splines 41.Here, owing to only use small amount of binder, therefore do not influence above-mentioned detachable function.
In a preferred embodiment of the present invention, described second internal spline 12, second external splines 51, the 3rd internal spline 32 and the 3rd external splines 41 all have 6 key teeth; Described first internal spline 21, active piece external splines 11 and Slave Block external splines 31 all have 12 key teeth.
It should be noted that the present invention can be used as is under the alternation operating mode for a long time, needs to reduce vibration, and the axle of low noise is connected element.
Embodiment shown in above foundation is graphic describes structure of the present invention, feature and action effect in detail; the above only is preferred embodiment of the present invention; but the present invention does not limit practical range with shown in the drawing; every change of doing according to conception of the present invention; or be revised as the equivalent embodiment of equivalent variations; when not exceeding specification yet and illustrating contain spiritual, all should be in protection scope of the present invention.
Claims (10)
1. coupling, comprise active piece, Slave Block and the joint that is used for connecting active piece and Slave Block, it is characterized in that: between described active piece and the joint, and the mode of all moving each other with restriction between described joint and the Slave Block removably connects; Between described active piece and the motor output shaft, and the mode of all moving each other with restriction between the worm shaft of Slave Block and worm-gear speed reducer removably connects.
2. coupling according to claim 1 is characterized in that:
The inwall of first manhole that has at described joint is provided with first internal spline, described active piece and Slave Block are cylindrical structural, circumferential surface at described active piece and Slave Block is respectively equipped with initiatively piece external splines and Slave Block external splines, and described active piece external splines and Slave Block external splines all are complementary with described first internal spline; And,
Described active piece has initiatively the part of piece external splines and the part that described Slave Block has the Slave Block external splines extends in described first manhole from two ends respectively, and removably is connected to limit the mode of moving each other with described joint with the cooperation of first internal spline with cooperation and the Slave Block external splines of first internal spline by active piece external splines accordingly.
3. coupling according to claim 2 is characterized in that:
Described active piece and Slave Block offer second manhole and the 3rd manhole along separately axis respectively, offer second internal spline at the inwall of described second manhole, offer the 3rd internal spline at the inwall of described the 3rd manhole; Outer wall in the end of described motor output shaft is processed with second external splines, is processed with the 3rd external splines at the outer wall of described worm shaft; And,
One profile of tooth among described second internal spline and second external splines is straight-tooth, another profile of tooth is involute tooth, flank cooperation place at the key tooth of the key tooth of described second internal spline and second external splines forms the first interference district, and the magnitude of interference in the described first interference district is 0.04～0.08; And, one profile of tooth among described the 3rd internal spline and the 3rd external splines is straight-tooth, another profile of tooth is involute tooth, flank cooperation place at the key tooth of the key tooth of described the 3rd internal spline and the 3rd external splines forms the second interference district, and the magnitude of interference in the described second interference district is 0.04～0.08.
4. coupling according to claim 3, it is characterized in that: described first magnitude of interference is 0.05; Described second magnitude of interference is 0.05.
5. coupling according to claim 3 is characterized in that: described first internal spline and initiatively between the piece external splines, between described first internal spline and the Slave Block external splines, between described second internal spline and second external splines and be filled with small amount of binder between described the 3rd internal spline and the 3rd external splines.
6. according to any described coupling in the claim 2 to 5, it is characterized in that: described active piece has the initiatively part of piece external splines, and the length of part that has the Slave Block external splines with described Slave Block is identical, is half of length of described joint.
7. according to any described coupling in the claim 3 to 5, it is characterized in that: described second internal spline, second external splines, the 3rd internal spline and the 3rd external splines all have 6 key teeth.
8. according to any described coupling in the claim 2 to 5, it is characterized in that: described first internal spline, active piece external splines and Slave Block external splines all have 12 key teeth.
9. according to any described coupling in the claim 1 to 5, it is characterized in that: described active piece and Slave Block are made by nylon material.
10. according to any described coupling in the claim 1 to 5, it is characterized in that: described joint is by a kind of the making in the following material: glass fibre, hydrogenated nitrile-butadiene rubber, polyamide 66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101998398A CN103256315A (en) | 2013-05-24 | 2013-05-24 | Coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101998398A CN103256315A (en) | 2013-05-24 | 2013-05-24 | Coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103256315A true CN103256315A (en) | 2013-08-21 |
Family
ID=48960450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101998398A Pending CN103256315A (en) | 2013-05-24 | 2013-05-24 | Coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103256315A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667591A (en) * | 2015-03-16 | 2015-06-03 | 太仓市捷宏节能环保科技有限公司 | Tubular spline and mud scraping mechanism with same |
| CN107322843A (en) * | 2017-08-31 | 2017-11-07 | 重庆鲜王机械制造有限公司 | A kind of simple shaft coupling manufacturing equipment |
| CN109019327A (en) * | 2018-09-26 | 2018-12-18 | 东莞市台冠起重机械设备有限公司 | A kind of lifting mechanism of the crane for frequency control |
| CN109555751A (en) * | 2018-11-26 | 2019-04-02 | 深圳市科斯腾液压设备有限公司 | A kind of electrohydraulic integration device |
| CN109751449A (en) * | 2019-01-28 | 2019-05-14 | 宁波浒江自控设备有限公司 | A kind of Electric Actuator |
| CN109854799A (en) * | 2019-01-28 | 2019-06-07 | 宁波浒江自控设备有限公司 | Electric Actuator |
| CN109751449B (en) * | 2019-01-28 | 2024-05-03 | 宁波浒江自控设备有限公司 | Electric actuator |
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| US20010008590A1 (en) * | 2000-01-17 | 2001-07-19 | Kazunori Katada | Drive power transmission device, image forming apparatus and process cartridge |
| US20080009354A1 (en) * | 2006-07-05 | 2008-01-10 | Yahya Hodjat | Sleeve-type flexible shaft coupling |
| CN201494491U (en) * | 2009-08-12 | 2010-06-02 | 武汉捷隆汽车电动转向系统有限公司 | Spline pair for skid steering transmission shaft of vehicle |
| CN201747815U (en) * | 2010-08-27 | 2011-02-16 | 曹磊 | Internal tooth-shaped elastic coupling |
| CN202579693U (en) * | 2012-05-11 | 2012-12-05 | 安徽江淮汽车股份有限公司 | Shaft coupling for electric power-assisted steering system of automobile |
| CN203322079U (en) * | 2013-05-24 | 2013-12-04 | 安徽江淮汽车股份有限公司 | Coupler |
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2013
- 2013-05-24 CN CN2013101998398A patent/CN103256315A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010008590A1 (en) * | 2000-01-17 | 2001-07-19 | Kazunori Katada | Drive power transmission device, image forming apparatus and process cartridge |
| US20080009354A1 (en) * | 2006-07-05 | 2008-01-10 | Yahya Hodjat | Sleeve-type flexible shaft coupling |
| CN201494491U (en) * | 2009-08-12 | 2010-06-02 | 武汉捷隆汽车电动转向系统有限公司 | Spline pair for skid steering transmission shaft of vehicle |
| CN201747815U (en) * | 2010-08-27 | 2011-02-16 | 曹磊 | Internal tooth-shaped elastic coupling |
| CN202579693U (en) * | 2012-05-11 | 2012-12-05 | 安徽江淮汽车股份有限公司 | Shaft coupling for electric power-assisted steering system of automobile |
| CN203322079U (en) * | 2013-05-24 | 2013-12-04 | 安徽江淮汽车股份有限公司 | Coupler |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667591A (en) * | 2015-03-16 | 2015-06-03 | 太仓市捷宏节能环保科技有限公司 | Tubular spline and mud scraping mechanism with same |
| CN107322843A (en) * | 2017-08-31 | 2017-11-07 | 重庆鲜王机械制造有限公司 | A kind of simple shaft coupling manufacturing equipment |
| CN107322843B (en) * | 2017-08-31 | 2023-10-03 | 重庆鲜宇机械制造有限公司 | Simple coupler manufacturing equipment |
| CN109019327A (en) * | 2018-09-26 | 2018-12-18 | 东莞市台冠起重机械设备有限公司 | A kind of lifting mechanism of the crane for frequency control |
| CN109555751A (en) * | 2018-11-26 | 2019-04-02 | 深圳市科斯腾液压设备有限公司 | A kind of electrohydraulic integration device |
| CN109751449A (en) * | 2019-01-28 | 2019-05-14 | 宁波浒江自控设备有限公司 | A kind of Electric Actuator |
| CN109854799A (en) * | 2019-01-28 | 2019-06-07 | 宁波浒江自控设备有限公司 | Electric Actuator |
| CN109751449B (en) * | 2019-01-28 | 2024-05-03 | 宁波浒江自控设备有限公司 | Electric actuator |
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| CB03 | Change of inventor or designer information |
Inventor after: Ding Ling Inventor after: Tang Xuedong Inventor after: Yang Huaxing Inventor before: Ji Chunyou Inventor before: Tang Xuedong Inventor before: Ding Ling Inventor before: Yang Huaxing |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: JI CHUNYOU TANG XUEDONG DING LING YANG HUAXING TO: DING LING TANG XUEDONG YANG HUAXING |
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Application publication date: 20130821 |