CN202560961U - Device capable of directly converting rotary motion to linear motion transmission on smooth shaft - Google Patents
Device capable of directly converting rotary motion to linear motion transmission on smooth shaft Download PDFInfo
- Publication number
- CN202560961U CN202560961U CN2012202402636U CN201220240263U CN202560961U CN 202560961 U CN202560961 U CN 202560961U CN 2012202402636 U CN2012202402636 U CN 2012202402636U CN 201220240263 U CN201220240263 U CN 201220240263U CN 202560961 U CN202560961 U CN 202560961U
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- driving
- axle
- driving bearing
- smooth
- rotational
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Abstract
The utility model relates to a device capable of directly converting rotary motion to linear motion transmission on a smooth shaft, which can be applied to various driving devices for driving objects to move in a straight line, such as switch driving devices of curtains, movable doors and the like, and is structurally composed of a movable base (1), a rotary smooth shaft (2) as well as more than four driving bearings (3) arranged at intervals, wherein outer rings of the driving bearings (3) are sleeved with rubber rings (5), and the driving bearings (3) are respectively mounted in corresponding bearing mounting slots (4); and shaft mounting faces (6) of the inner rings of the driving bearings (3) are round ring-shaped, and the minimum diameter of the inner rings of the driving bearings (3) is required to be larger than the external diameter of the rotary smooth shaft (2). The device provided by the utility model adopts a rigid contact transmission manner, has no friction pulley and corresponding sliding part; and in addition, theoretically, the device avoids sliding friction loss and mechanical abrasion and is high in transmission efficiency.
Description
Technical field
The utility model relates to linear motion device; Be specially a kind of directly on smooth shaft, will rotatablely moving and convert the device that straight line motion transmits to; Can be applicable in the straight-line drive unit of various driving objects, like round driving of objects such as curtain, door and window, moving door etc.
Background technique
As everyone knows; The power source that drive unit is commonly used at present is a motor; The outputting power mode of motor is main with rotation again, and when the action of final executive component need be straight line motion, will the rotatory force of motor output be changed into straight line motion power and add on the executive component.The device of this transmission agency of existing techniques in realizing has: bolt and nut transmission device or rack and pinion drive or cam follower device or crank block device etc.Wherein use the most extensive with the bolt and nut transmission device; Realize and the bolt and nut transmission device needs threaded long bolt, but when moving between nut and the screw flight, have sliding-frictional resistance; Though there is lubricant oil to improve between them; But can't eliminate the sliding friction loss fully, so efficiency of transmission is not high, peak efficiency is no more than 50%.Adopt the screw thread transmission because of existing with the gear rack transmission equally, efficiency of transmission is not high yet yet; And adopt cam follower device and crank block device because of the straight line motion stroke weak point of its generation, and only to do short distance mostly back and forth to drive, using scope is limited.
On March 18th, 2009 Chinese model utility notice of authorization CN 201209656Y; A kind of friction type straight-line transmitting actuation mechanism is disclosed; Form by moving seat, rotational smooth axle and friction wheel, the week side of rotation smooth shaft is provided with at least one friction wheel in the mobile seat, and the periphery of friction wheel offsets with the rotational smooth axle and contacts; And the axis of the axis of friction wheel and rotational smooth axle is oblique spatially.Though this technological scheme can realize rotatablely moving and convert straight-line long stroke transmission to; But fixing friction wheel directly is pressed on the rotational smooth axle, makes friction wheel bearing radial force and surface pressure, and use can make friction wheel produce permanent deformation for a long time, influences the stationarity of transmission and the working life of mechanism.Manufacture difficulty is big simultaneously, and cost of production is high.
The model utility content
The utility model technical problem to be solved is to solve the above-mentioned defective that existing technology exists, and provides a kind of directly on smooth shaft, will rotatablely moving to convert the device that straight line motion transmits to.This device adopts the rigidity Contact Transmission, has not both had friction wheel, does not also have the slide relative position; Do not have sliding friction loss and mechanical wear in theory, energy-conservation, transmission efficiency is high.
The technological scheme that the utility model adopts is: a kind of directly on smooth shaft, will rotatablely moving converts the device that straight line motion transmits to; Forms by the driving bearing that moves seat, rotational smooth axle and arrange apart from ground to each other more than four, move an interior respective drive and hold quantity and be respectively equipped with corresponding Bearing Installation groove; Be with rubber ring on the outer ring of said driving bearing, be installed in respectively in the corresponding Bearing Installation groove; The axle attachment face of driving bearing inner ring is a toroidal surface, and the minimum diameter of driving bearing inner ring is greater than the external diameter of rotational smooth axle; Described rotational smooth axle passes the inner ring of above-mentioned driving bearing more than four successively; From vertically seeing, the radial plane between said driving bearing more than four is spatially adjacent not parallel each other, but the angle of radial plane equates between per two; See from horizontal vertical rotational smooth axle direction; The axle center of said driving bearing more than four all with rotational smooth axle decentraction; But the driving bearing inner ring between per two is the surface that contacts the rotational smooth axle one on the other across, and between produce certain contact pressure.
Described mobile seat is the pedestal combination that upper and lower two halves separate.
The utility model working principle is: when the utility model uses; The rotational smooth axle is rotated by motoring as driving link; Thereby the contact pressure by driving bearing inner ring and smooth shaft surface drives each driving bearing inner ring rotation of moving in the seat; Rotating force acts on and forms the component that advances to smooth shaft one end on the driving bearing inner ring that is not parallel radial plane, moves seat along the axial end motion of rotational smooth thereby drive; When motor reversed, same, rotating force acted on and forms the component that advances to the smooth shaft opposite end on the driving bearing inner ring that is not parallel radial plane, moved seat and moved after axially along rotational smooth thereby drive.
Compare with existing technology, the positive effect of the utility model is:
1. the utility model makes driving bearing inner ring and rotational smooth axle surface become the nonflexible line contact condition because the axle attachment face of employing driving bearing inner ring is the special construction of toroidal surface, do not produce slide relative frictional force, so transmission efficiency is high;
2. there is not friction driving between the utility model rotational smooth axle and the mobile seat; Without lubricant oil; Be not easy to attach dust on the smooth shaft, the dust in the environment is little to the influence of this device, surface clean; Can not pour into a mould the lubricant pollution environment, need not adopt measures such as shielding can that the rotational smooth axle is isolated from the outside out yet as screw rod;
3. the utility model smooth shaft processing technology is simpler, makes easily; Be to adopt respectively to be pressed on up and down on the smooth shaft between each driving bearing inner ring and the smooth shaft surface, the minimum diameter of each driving bearing inner ring needs only the external diameter greater than the rotational smooth axle, does not have the matching problem between them; Compare with the screw rod of same outer diameter as, the rigidity of smooth shaft is higher than screw rod, and smooth shaft also can be made quill shaft, alleviates the deadweight of smooth shaft, saves material; Compare with screw rod, smooth shaft can be done very longly, thus this device can to object such as curtain, door and window, object such as move and grow distance transmission back and forth;
4. the rotational smooth axle of the utility model and each driving bearing inner ring are to rely on the contact pressure transmission; Impacting force is adjustable through cover rubber ring on the outer ring; All motions are pure rolling; And the rotational smooth axle is not influenced by other radial forces, thereby improves the stability of operation and the precision of straight line motion resetting.
Description of drawings
Fig. 1 is the monnolithic case structural representation of the utility model.
Fig. 2 is a side structure schematic representation among Fig. 1.
Fig. 3 is that Fig. 2 opens the internal structure schematic representation that moves the seat upper pedestal.
Fig. 4 is that the A of accompanying drawing 3 is to cross-sectional schematic.
Fig. 5 is that the B of accompanying drawing 3 is to schematic top plan view.
Mark in the above accompanying drawing is: 1 moves seat; 2 rotational smooth axles; 3 driving bearings; 4 Bearing Installation grooves; 5 rubber rings; The axle attachment face of 6 inner rings.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Embodiment 1
With reference to accompanying drawing 1-5; A kind of directly on smooth shaft, will rotatablely moving converts the device that straight line motion transmits to; Form by moving seat 1, rotational smooth axle 2 and four 3 of driving bearings of arranging apart from ground to each other, move in the seat 1 respective drive and hold 3 quantity and be respectively equipped with corresponding Bearing Installation groove 4; It is characterized in that: be with rubber ring 5 on the outer ring of said driving bearing 3, be installed in respectively in the corresponding Bearing Installation groove 4; The axle attachment face 6 of driving bearing 3 inner rings is toroidal surfaces, and the minimum diameter of driving bearing 3 inner rings is greater than the external diameter of rotational smooth axle 2; Described rotational smooth axle 2 passes the inner ring of above-mentioned four driving bearings 3 successively; From vertically seeing, the radial plane that said four driving bearings are 3 is spatially adjacent not parallel each other, but the angle of radial plane equates between per two; See from horizontal vertical rotational smooth axle 2 directions; The axle center of said four driving bearings all with rotational smooth axle decentraction; But the driving bearing inner ring between per two is the surface that contacts the rotational smooth axle one on the other across, and between produce certain contact pressure.Described mobile seat 1 is the pedestal combination that upper and lower two halves separate.
A kind of directly on smooth shaft, will rotatablely moving converts the device that straight line motion transmits to; Form by moving seat 1, rotational smooth axle 2 and six 3 of driving bearings of arranging apart from ground to each other, move in the seat 1 respective drive and hold 3 quantity and be respectively equipped with corresponding Bearing Installation groove 4; It is characterized in that: be with rubber ring 5 on the outer ring of said driving bearing 3, be installed in respectively in the corresponding Bearing Installation groove 4; The axle attachment face 6 of driving bearing 3 inner rings is toroidal surfaces, and the minimum diameter of driving bearing 3 inner rings is greater than the external diameter of rotational smooth axle 2; Described rotational smooth axle 2 passes the inner ring of above-mentioned six driving bearings 3 successively; From vertically seeing, the radial plane that said six driving bearings are 3 is spatially adjacent not parallel each other, but the angle of radial plane equates between per two; See from horizontal vertical rotational smooth axle 2 directions; The axle center of said six driving bearings all with rotational smooth axle decentraction; But the driving bearing inner ring between per two is the surface that contacts the rotational smooth axle one on the other across, and between produce certain contact pressure.Described mobile seat 1 is the pedestal combination that upper and lower two halves separate.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is the content that lets those skilled in the art can understand the utility model and implements according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.
Claims (2)
1. direct on smooth shaft, will rotatablely moving converts the device that straight line motion transmits to; Is made up of the driving bearing (3) that moves seat (1), rotational smooth axle (2) and arrange apart from ground to each other more than four, mobile (a 1) interior respective drive is held (3) quantity and is respectively equipped with corresponding Bearing Installation groove (4); It is characterized in that: be with rubber ring (5) on the outer ring of said driving bearing (3), be installed in respectively in the corresponding Bearing Installation groove (4); The axle attachment face (6) of driving bearing inner ring is a toroidal surface, and the minimum diameter of driving bearing (3) inner ring is greater than the external diameter of rotational smooth axle (2); Described rotational smooth axle (2) passes the inner ring of above-mentioned driving bearing (3) more than four successively; From vertically seeing, the radial plane between said driving bearing more than four is spatially adjacent not parallel each other, but the angle of radial plane equates between per two; See from horizontal vertical rotational smooth axle (2) direction; The axle center of said driving bearing more than four all with rotational smooth axle decentraction; But driving bearing (3) inner ring between per two is the surface that contacts the rotational smooth axle one on the other across, and between produce certain contact pressure.
2. according to claim 1 directly on smooth shaft, will rotatablely moving converts the device that straight line motion transmits to, it is characterized in that: described mobile seat (1) is the pedestal combination that upper and lower two halves separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202402636U CN202560961U (en) | 2012-05-27 | 2012-05-27 | Device capable of directly converting rotary motion to linear motion transmission on smooth shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202402636U CN202560961U (en) | 2012-05-27 | 2012-05-27 | Device capable of directly converting rotary motion to linear motion transmission on smooth shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560961U true CN202560961U (en) | 2012-11-28 |
Family
ID=47210621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202402636U Expired - Fee Related CN202560961U (en) | 2012-05-27 | 2012-05-27 | Device capable of directly converting rotary motion to linear motion transmission on smooth shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678858A (en) * | 2012-05-27 | 2012-09-19 | 郴州综合职业中专学校 | Device for directly converting rotational motion into linear motion for transmission on smooth shaft |
-
2012
- 2012-05-27 CN CN2012202402636U patent/CN202560961U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678858A (en) * | 2012-05-27 | 2012-09-19 | 郴州综合职业中专学校 | Device for directly converting rotational motion into linear motion for transmission on smooth shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20140527 |