CN101858415B - Worm reciprocating rotary device - Google Patents
Worm reciprocating rotary device Download PDFInfo
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- CN101858415B CN101858415B CN2009101035844A CN200910103584A CN101858415B CN 101858415 B CN101858415 B CN 101858415B CN 2009101035844 A CN2009101035844 A CN 2009101035844A CN 200910103584 A CN200910103584 A CN 200910103584A CN 101858415 B CN101858415 B CN 101858415B
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- output shaft
- reverse
- slide block
- groove
- reciprocating rotary
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- 230000007704 transition Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000005406 washing Methods 0.000 description 10
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention discloses a screw reciprocating rotary device. A bracket bushing is supported outside a sleeve section of an output shaft by a bearing; the inner wall of the bracket bushing is provided with a guide groove along the axial direction; a two-way screw is arranged in a sleeve of the output shaft; a slide block is arranged in a spiral through hole on the output shaft; the upper end of the slide block is extended into the guide groove on the inner wall of the bracket bushing; the lower end of the slide block is extended into a directing groove on the two-way screw; the directing groove consists of a positive rotation groove, a reverse rotation groove and transition grooves, wherein the positive rotation groove and the reverse rotation groove are in opposite rotating directions and are arranged on the outer circumference of the two-way screw crosswise; and the two ends of the positive rotation groove and the two ends of the reverse rotation groove are respectively communicated with each other through two transition grooves. The worm reciprocating rotary device has the characteristics of smooth transmission, small vibration, low noise, simple and compact structure, easy assembly, low cost and the like, can realize complex output in a reciprocating rotary movement rule, has a decelerating function, can input higher and lower rotating speed, has very wide application range, and can be suitable for household appliances or other various fields needing reciprocating rotary movement.
Description
Technical field
The present invention relates to a kind of transmission device, particularly a kind of Worm type intermittence or continuous reciprocating rotary device.
Background technique
Reciprocating rotary device is a transmission device commonly used in each field such as household electric appliance, industry, and it is converted into continuous unidirectional rotary motion intermittently or continuous reciprocating rotating, and very important effect is arranged.Many at present employing planar linkages such as crank rocker or other complicated mechanism make up and realize this reciprocating rotating motion, but because the problems such as constraint of these mechanisms itself, its output angle of revolution and the characteristics of motion etc. are subjected to bigger restriction, so design more complicated, can not accurately realize the complicated characteristics of motion, and in real work, have vibration, defective such as noise is big; Have also simultaneously that volume is big, structure is not compact, assembling difficulty, the high deficiency of cost, and input speed can not be too high, use occasion is severely limited.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple and compact for structure and screw rod reciprocating rotary device of operating steadily.
Technological scheme of the present invention is as follows: a kind of screw rod reciprocating rotary device, has output shaft, its key is: an end of described output shaft is a tube-in-tube structure, offer the spirality through hole on the wall of this output shaft sleeve section, outside in output shaft sleeve section is supported with support casing by bearing, offer guiding groove on the inwall of this support casing vertically, and the two ends of support casing are fixed with end cap respectively; In the sleeve of described output shaft reverse-flighted screw is set, the two ends of this reverse-flighted screw are bearing in respectively on the output shaft and first end cap by bearing, and reverse-flighted screw wherein passes outside first end cap end of an end; Be provided with slide block in the spirality through hole on described output shaft, the upper end of this slide block is stretched in the guiding groove on the support casing inwall, the lower end of slide block is stretched in the steering channel on the reverse-flighted screw, described steering channel is made up of positive spin slot, derotation groove and transition slot, wherein positive and negative spin slot is spirality, both rotation directions are opposite, and intercross arrangement is on the excircle of reverse-flighted screw, and the two ends of positive and negative spin slot are communicated with by two sections transition slots respectively.
Among the present invention, reverse-flighted screw is an input shaft, when rotating under the drive of reverse-flighted screw at power source, positive spin slot promotion slide block on the reverse-flighted screw is made axial straight line along the guiding groove on the support casing inwall and is moved, when slide block moves, promote output shaft by the spirality through hole on the output shaft and be rotated in the forward; Rotation along with reverse-flighted screw, slide block switches to the derotation groove by transition slot from positive spin slot, the derotation groove promotes slide block and does axially to move in the other direction along the guiding groove on the support casing inwall, when slide block oppositely moves, promotes the output shaft counterrotating by the spirality through hole on the output shaft.This shows,, can realize that the continuous unidirectional rotary motion with input shaft is converted into the intermittence or the continuous reciprocating rotating of output shaft by the rotation of control reverse-flighted screw.Compare with conventional construction, that the present invention operates steadily, vibrates is little, noise is low, and its output angle of revolution and the characteristics of motion etc. can be easy to the design realization as required.Simultaneously, the present invention is simple and compact for structure, and carries deceleration, can import big and than the slow-speed of revolution.
In order to make structure compact more, and convenient processing and assembling, above-mentioned support casing is the straight-through tube structure, and an end of support casing is fixed by the bolt and first end cap, and the other end of support casing is fixed by the bolt and second end cap.
In like manner, above-mentioned reverse-flighted screw is a stepped shape round column structure small in ends, that the stage casing is big, offers steering channel on the excircle in reverse-flighted screw stage casing.
Processing for convenience, and it is smooth and easy to guarantee that slide block moves, the cross section of steering channel is rectangle or triangle or trapezoidal or arc on the above-mentioned reverse-flighted screw.
As preferably, the pitch of above-mentioned positive and negative spin slot equates.
For the intensity that guarantees slide block, the flexibility and the reliability of motion, and effectively reduce surface friction drag between slide block and the reverse-flighted screw, above-mentioned slide block is up-small and down-big two-part structure, the epimere of slide block is cylindrical, hypomere is oval, and the length of oval minor axis and columniform equal diameters, the circular arc of the bottom surface of described slide block for upwards caving in.
Beneficial effect: the present invention is owing to adopt two-way worm screw that slide block is moved back and forth, and unidirectional rotation is converted into the reciprocating rotating output of output shaft, its stable drive, vibration is little, noise is low, simple and compact for structure, assembling is easy, cost is low; The pitch ratio of the spiral through hole on the output shaft and positive spin slot of two-way worm screw and derotation groove, be respectively it and just changeing deceleration speed ratio and counter-rotating deceleration speed ratio, therefore can be by changing the deceleration speed ratio relation that its pitch ratio realization needs, and can the lift angle of spiral through hole on the output shaft be changed according to certain rules by design, or the lift angle of positive spin slot of two-way worm screw and derotation groove is changed according to certain rules, to realize complicated reciprocating rotating characteristics of motion output.The present invention carries deceleration, can import big and than the slow-speed of revolution, using scope is very extensive, applicable to household electric appliance, as, the retarder of washing machine and its automatically controlled reciprocating rotating controller can be substituted fully, make that the washing machine operational shock is littler, noise is lower, and reduce cost, also be applicable to each field that other needs the reciprocating rotating motion simultaneously, or be developed to serial reciprocating rotating retarder.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of output shaft among the present invention.
Fig. 3 is the structural representation of reverse-flighted screw among the present invention.
Fig. 4 is the structural representation of medium-height trestle cover of the present invention.
Fig. 5 is the side view of Fig. 4.
Fig. 6 is the structural representation of slide block among the present invention.
Fig. 7 is the plan view of Fig. 6.
Fig. 8 is used for structural representation as decelerator for washing machine for the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
To shown in Figure 6, the present invention is made of output shaft 1, slide block 4, support casing 5, reverse-flighted screw 8, first end cap 9, second end cap 10 and bearing as Fig. 1, and wherein output shaft 1 is linked to each other with the long sleeve sections in the right by the short axle journal section in the left side and forms.Offer spirality through hole 11 on the wall of output shaft 1 sleeve sections, this spirality through hole 11 can also can be the multi-circle spiral flow profile for a section of whole circle spiral profile.Described support casing 5 is the straight-through tube structure, and the equal in length of length and output shaft 1 sleeve sections offers guiding groove 16 vertically on the inwall of support casing 5.The left end of described support casing 5 endoporus is supported on the left part of output shaft 1 sleeve sections by bearing 2, and the right-hand member of support casing 5 endoporus is supported on the right part of output shaft 1 sleeve sections by bearing 6.In the left side of support casing 5 second end cap 10 is set, this second end cap 10 is set in the axle journal section of output shaft 1, and cooperates with the intersegmental crack of axle journal, and second end cap 10 fits with the left side of support casing 5, by bolt together.The right side that first end cap, 9, the first end caps 9 and support casing 5 are set on the right side of support casing 5 fits, also by bolt together.
From Fig. 1 to Fig. 6 as can be known, reverse-flighted screw 8 is arranged in the sleeve of output shaft 1, and both shaft axiss coincide.Described reverse-flighted screw 8 is a stepped shape round column structure small in ends, that the stage casing is big.The axle journal section of the close output shaft 1 of the reduced diameter section of reverse-flighted screw 8 left ends, and be bearing in by bearing 3 in the sleeve of output shaft 1; The reduced diameter section of reverse-flighted screw 8 right-hand members is bearing on first end cap 9 by bearing 7, and the end of this end passes outside first end cap 9.Be provided with slide block 4 in the spirality through hole 11 on described output shaft 1, this slide block 4 is up-small and down-big two-part structure, and the epimere of slide block 4 is cylindrical, and columniform upper end is stretched in the guiding groove 16 on support casing 5 inwalls; Columniform hypomere is oval, the columniform equal diameters of the length of oval minor axis and epimere, and oval-shaped bottom is stretched in the steering channel of offering on the reverse-flighted screw 8 middle part enlarged diameter section excircles, and the circular arc of the bottom surface of slide block 4 for upwards caving in.
From Fig. 1, Fig. 3 further as can be known, the cross section of steering channel is rectangle, triangle, trapezoidal, arc or other shape that is fit on the reverse-flighted screw 8, this steering channel is made up of positive spin slot 13, derotation groove 14, first transition slot 15 and second transition slot 12, wherein positive and negative spin slot 13,14 is spirality, both pitch equates, rotation direction is opposite, and intercross arrangement is on the excircle of reverse-flighted screw 8.Described positive and negative spin slot 13,14 can also can be the multi-circle spiral flow profile for a section of whole circle spiral profile.The left end of positive spin slot 13 and derotation groove 14 is communicated with by second transition slot 12, and the right-hand member of positive spin slot 13 and derotation groove 14 is communicated with by first transition slot 15, and two transition slots 12,15 guarantee that slide block 4 can seamlessly transit between positive spin slot 13 and derotation groove 14.
Working principle of the present invention is as follows:
Reverse-flighted screw 8 is an input shaft, when the lower end of slide block 4 is positioned at positive spin slot 13 on the reverse-flighted screw 8, reverse-flighted screw 8 rotates under the drive of power source, positive spin slot 13 on the reverse-flighted screw 8 promotes slide block 4 and moves as straight line left along the guiding groove 16 on support casing 5 inwalls, when slide block 4 is moved to the left, promotes output shaft 1 by the spirality through hole on the output shaft 1 11 and be rotated in the forward; Rotation along with reverse-flighted screw 8, slide block 4 switches to derotation groove 14 by second transition slot 12 from positive spin slot 13, derotation groove 14 promotes slide block 4 and moves as straight line to the right along the guiding groove 16 on support casing 5 inwalls, when slide block 4 moves right, promote output shaft 1 counterrotating by the spirality through hole on the output shaft 1 11; Slide block 4 moves to the limit position on the right, switches back in the positive spin slot 13 by first transition slot 15 again, restarts left that straight line moves, and output shaft 1 changes sense of rotation thereupon.In like manner, when the lower end of slide block 4 was positioned at derotation groove 14 on the reverse-flighted screw 8 at first, under the drive of power source, output shaft 1 counter-rotating earlier just changeed again, so repeatedly.This shows,, can realize that the continuous unidirectional rotary motion with input shaft is converted into the intermittence or the continuous reciprocating rotating of output shaft 1 by the rotation of control reverse-flighted screw 8.
As Fig. 8 and in conjunction with shown in Figure 1, upper shell 17 and lower shell body 18 are interlocked fixing, form the shell of decelerator for washing machine.Integral installation of the present invention is in the decelerator for washing machine shell, wherein output shaft 1 is as wash shaft, the end of this output shaft 1 and second end cap 10 protrudes upward outside the upper shell 17, and second end cap 10 is bearing in respectively between output shaft 1 and the upper shell 17 by bearing 19,20.Reverse-flighted screw 8 is as input shaft, this reverse-flighted screw 8 and first end cap 9 stretch out downwards outside the lower shell body 18, and first end cap 9 is bearing on the lower shell body 18 by bearing 21, stretch out the part suit dehydration belt wheel 22 of lower shell body 18 bottom surfaces at first end cap 9, stretch out the part suit washing belt wheel 23 of first end cap 9 at described reverse-flighted screw 8.During washing, support casing 5 is braked, washing power passes to reverse-flighted screw 8 by washing belt wheel 23, reverse-flighted screw 8 rotations also promote slide block 4, guiding groove 16 restriction slide blocks 4 on the support casing 5 can only linear reciprocation move, and slide block 4 is by reciprocatingly sliding in the spirality through hole 11 of output shaft 1, thereby promote output shaft 1 reciprocating rotating, unidirectional rotary motion is output as gap or reciprocating rotating motion continuously, realizes washing function.During dehydration, support casing 5 is loosened, reverse-flighted screw 8 also stops to import power, be in free state, be connected the dehydrating shaft that constitutes by dehydration belt wheel 22 input high speed dewatering power by second end cap 10, support casing 5 and first end cap 9, thereby realize the high speed rotating dehydration, this moment, output shaft 1 and reverse-flighted screw 8 were under the interconnect function of slide block 4, also with dehydrating shaft high speed rotating in the same way synchronously.
Although below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described; but the invention is not restricted to above-mentioned embodiment; above-mentioned embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present invention; under the prerequisite of aim of the present invention and claim; can make multiple similar expression; as change the shape of support casing; perhaps change the structure of slide block; perhaps change the means of fixation of end cap and support casing etc., such conversion all falls within protection scope of the present invention.
Claims (6)
1. screw rod reciprocating rotary device, has output shaft (1), it is characterized in that: an end of described output shaft (1) is a tube-in-tube structure, offer spirality through hole (11) on the wall of this output shaft (1) sleeve sections, outside at output shaft (1) sleeve sections is supported with support casing (5) by bearing, offer guiding groove (16) on the inwall of this support casing (5) vertically, and the two ends of support casing (5) are fixed with end cap (9,10) respectively; Reverse-flighted screw (8) is set in the sleeve of described output shaft (1), and the two ends of this reverse-flighted screw (8) are bearing in respectively on output shaft (1) and first end cap (9) by bearing, and reverse-flighted screw (8) wherein passes outside first end cap (9) end of an end; Be provided with slide block (4) in the spirality through hole (11) on described output shaft (1), the upper end of this slide block (4) is stretched in the guiding groove (16) on support casing (5) inwall, the lower end of slide block (4) is stretched in the steering channel on the reverse-flighted screw (8), described steering channel is by positive spin slot (13), derotation groove (14) and transition slot (12,15) form, wherein just, derotation groove (13,14) be spirality, both rotation directions are opposite, and intercross arrangement is on the excircle of reverse-flighted screw (8), and just, derotation groove (13,14) two ends are respectively by two sections transition slots (12,15) be communicated with.
2. screw rod reciprocating rotary device according to claim 1, it is characterized in that: described support casing (5) is the straight-through tube structure, one end of support casing (5) is fixing by bolt and first end cap (9), and the other end of support casing (5) is fixing by bolt and second end cap (10).
3. screw rod reciprocating rotary device according to claim 1 is characterized in that: described reverse-flighted screw (8) is offered steering channel for stepped shape round column structure small in ends, that the stage casing is big on the excircle in reverse-flighted screw (8) stage casing.
4. according to claim 1 or 3 described screw rod reciprocating rotary devices, it is characterized in that: the cross section that described reverse-flighted screw (8) is gone up steering channel is rectangle or triangle or trapezoidal or arc.
5. according to claim 1 or 3 described screw rod reciprocating rotary devices, it is characterized in that: the pitch of described positive and negative spin slot (13,14) equates.
6. screw rod reciprocating rotary device according to claim 1, it is characterized in that: described slide block (4) is up-small and down-big two-part structure, the epimere of slide block (4) is cylindrical, hypomere is oval, and the length of oval minor axis and columniform equal diameters, the circular arc of the bottom surface of described slide block (4) for upwards caving in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101035844A CN101858415B (en) | 2009-04-13 | 2009-04-13 | Worm reciprocating rotary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101035844A CN101858415B (en) | 2009-04-13 | 2009-04-13 | Worm reciprocating rotary device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858415A CN101858415A (en) | 2010-10-13 |
| CN101858415B true CN101858415B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101035844A Expired - Fee Related CN101858415B (en) | 2009-04-13 | 2009-04-13 | Worm reciprocating rotary device |
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| Country | Link |
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| CN (1) | CN101858415B (en) |
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| CN105065595B (en) * | 2015-07-14 | 2016-05-04 | 赵云鹏 | A kind of transmission component, transmission mechanism, transmission device and power transmission device |
| CN106901914B (en) * | 2015-12-19 | 2024-07-23 | 深圳市托安医疗器械有限公司 | Single-machine driving double-swing-rod synchronous push-pull device and method for avoiding unfavorable push-pull |
| CN106168125B (en) * | 2016-06-14 | 2024-07-05 | 戚威 | Rotary conversion reciprocating deep well liquid lifting device |
| CN106641147A (en) * | 2016-12-07 | 2017-05-10 | 洛阳文森科技有限公司 | Transmission mechanism driven by unidirectional rotating lead screw to move back and forth |
| CN108820910A (en) * | 2018-07-24 | 2018-11-16 | 中国地质大学（武汉） | A kind of hand harvester collected for level land grain |
| CN109230223B (en) * | 2018-08-03 | 2020-05-01 | 山西东昌实业有限公司 | Two-way push rod of rectifying of dual input axle |
| CN114831680A (en) * | 2022-06-02 | 2022-08-02 | 北京天星博迈迪医疗器械有限公司 | Full suture anchor implantation device |
| CN116686538A (en) * | 2023-07-24 | 2023-09-05 | 生态环境部南京环境科学研究所 | Lake aquatic vascular plant investigation device based on unmanned ship |
| CN116733919B (en) * | 2023-08-09 | 2023-10-13 | 成都博森数智科技有限公司 | Linear reciprocating motion structure and massage product |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE510291C (en) * | 1930-10-17 | Mechanische Kratzenfabrik Und | Grinding device in which the grinding head is moved back and forth on a rotating hollow spindle and rotates with it | |
| GB770767A (en) * | 1954-02-20 | 1957-03-27 | Thomas Wareing & Company Ltd | Improvements in or relating to traverse grinders |
| US6435448B2 (en) * | 2000-01-14 | 2002-08-20 | Georg Sahm Gmbh & Co. Kg | Winding machine with yarn traversing device |
-
2009
- 2009-04-13 CN CN2009101035844A patent/CN101858415B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE510291C (en) * | 1930-10-17 | Mechanische Kratzenfabrik Und | Grinding device in which the grinding head is moved back and forth on a rotating hollow spindle and rotates with it | |
| GB770767A (en) * | 1954-02-20 | 1957-03-27 | Thomas Wareing & Company Ltd | Improvements in or relating to traverse grinders |
| US6435448B2 (en) * | 2000-01-14 | 2002-08-20 | Georg Sahm Gmbh & Co. Kg | Winding machine with yarn traversing device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-239693A 1999.09.07 |
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| CN101858415A (en) | 2010-10-13 |
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Granted publication date: 20111116 Termination date: 20130413 |