CN201705876U - Polished circular lead screw - Google Patents
Polished circular lead screw Download PDFInfo
- Publication number
- CN201705876U CN201705876U CN2010202247631U CN201020224763U CN201705876U CN 201705876 U CN201705876 U CN 201705876U CN 2010202247631 U CN2010202247631 U CN 2010202247631U CN 201020224763 U CN201020224763 U CN 201020224763U CN 201705876 U CN201705876 U CN 201705876U
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- polished rod
- bearing
- axis
- roller bearing
- polished
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- Expired - Fee Related
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Abstract
The utility model relates to a polished circular lead screw, which comprises a polished rod with uniformed diameters and a bearing. The bearing arranged on the outer periphery of the polished rod is in close fit with the polished rod, a spatial included angle is arranged between the axis of the bearing and the axis of the polished rod, a cylindrical spiral track can be formed when the bearing and the polished rod rotate relatively, and the bearing rotates under the action of frictional force and generates transmission linear displacement relative to the polished rod. Formula of the distance of the transmission linear displacement is S=pi*d*tangent alpha, wherein the S is a transmission linear displacement value, the d is a diameter value of the polished rod, and the a is a value of the spatial included angle between the bearing axis and the polished rod axis. When the polished circular lead screw is adopted, the polished rod drives a movement part to generate linear movement, transmission of the polished rod has no gaps, technique and equipment for processing the polished rod are simpler, a mechanism capable of being opened and closed can respectively complete rapid movement and micro movement and is simple in assembly and adjustment, and the polished circular lead screw is suitable for driving of linear movement of the mechanism, low in cost and suitable for popularization.
Description
Technical field
The utility model relates to a kind of mechanical type rectilinear path transmission device, particularly a kind of light circle screw structure that can substitute existing ball screw.
Background technique
At machine-building or production field,, often need rotatablely moving of motor etc. changed into straight line motion, to adapt to the production and processing needs along with the raising of mechanical automation degree.Existing energy will rotatablely move and change in the straight-line equipment, generally be by screw rod or screw mandrel, be that screw rod or screw mandrel are rotated by motor driving, the tapped hole that the setting of transmission device domestic demand is corresponding with it, carry out transmission by being threaded, thereby make transmission device along screw rod or screw mandrel axis moving linearly, ball screw (ball screw), screw rod itself has certain screw channel to extend with certain spacing around circular shaft, there is the screw channel of uniform distances in central authorities in the nut, have tiny steel ball to connect together in the middle of them, work as rotating screw bolt, nut can move with fixing spacing straight line then.This structure has the following disadvantages:
A), described screw rod itself is hard material, process to reach precision prescribed (the spacing unanimity of whole screw channel), to the requirement height of manufacturing mechanism, cost increases like this.
B), ball will roll between screw channel, will add certain lubricant oil at screw rod, ball screw can not and can produce under the particle environment at many dusts and use, and because of dust and particulate can stick on the screw channel, influences overall precision and working life.
C), the cost of upkeep height, screw rod is not having under the situation of lubricating oil filling oxidation and rusting easily.
D), production and processing inconvenience, need just to reach the transmission purpose in transmission device processing cost height, nor be convenient to assembling at get on the bus out screw thread and tapped hole etc. is set of polished rod.
Chinese patent literature publication number CN 2931939, wherein disclosed polished rod transmission fast moving mechanism, this kind polished rod transmission fast moving mechanism, comprise polished rod and transmission device, polished rod is through transmission device, and the polished rod rotation drives transmission device along polished rod axis moving linearly, it is characterized in that: transmission device is equipped with bearing, bearing outer ring and polished rod are that tangent line contacts, and the axis of the axis of bearing and polished rod is in the antarafacial state, i.e. the relative polished rod distortion of bearing several angle installs and fixes.Described transmission device includes left jam plate and right jam plate, and left and right jam plate complements each other to form two cavitys that upper and lower two bearings are installed, and offers the through hole that wears polished rod between two cavitys.Described right jam plate top forms the upper recess surface of installing bearing, and upper recess surface and the right jam plate plate face θ that has angle, and the center of upper recess surface offers the upper bearing (metal) axis hole, and the axis of this axis hole is vertical with upper recess surface; Left side jam plate forms the concave surface that lower bearing is installed, and concave surface and the left jam plate plate face β that also has angle, and the center of concave surface offers the lower bearing axis hole, and the axis of this axis hole is vertical with concave surface.
Though the above-mentioned problem of mentioning of solution that this kind product can be to a certain degree, but this kind polished rod transmission fast moving mechanism structure is comparatively complicated, transmission device is equipped with bearing, bearing outer ring and polished rod are that tangent line contacts, and the axis of bearing and the axis of polished rod are in the antarafacial state, be that the reliability of structure that installs and fixes of the relative polished rod of bearing distortion several angle is relatively poor, its effect is relatively poor, and implementation cost is higher.
Summary of the invention
The utility model be to provide a kind of make simple, with low cost, can substitute existing ball screw, can produce straight line motion with the polished rod drive motion components, reaching transmission does not have the gap, the light of the purpose that machining accuracy is high is justified screw structure.
A kind of light circle screw mandrel of the present utility model,
It comprises: the polished rod of homogeneous diameter is arranged in the peripheral and close-fitting bearing of this polished rod of this polished rod; The axis of this bearing and the axis of described polished rod have space angle, when both relatively rotate, can form the cylindrical screw line tracking, described bearing rotates and produces the transmission straight-line displacement of described relatively polished rod under the effect of frictional force, wherein, the distance of described transmission straight-line displacement is a following formula:
S=π·d·tga
S is a transmission straight-line displacement value in the formula, and d is the diameter value of described polished rod, and a is the space angle value of bearing axis and polished rod axis.
Adopt the light circle screw mandrel of this structure, the polished rod drive motion components produces straight line motion, and the polished rod transmission is very close to each other, the processing technology and the equipment of polished rod are simpler, and mechanism can folding, can finish rapid movement and fine motion respectively, mechanism's assembling is adjusted simple, is suitable for the straight-line driving of mechanism.
Further, described bearing comprises: be arranged in the peripheral and close-fitting roller bearing of this polished rod of described polished rod, have the roller bearing containing groove, be used to install the roller bearing fixation workpiece of ccontaining this roller bearing, be set on the described polished rod, with the hard-wired upper and lower fixedly end face of this roller bearing fixation workpiece, be used for the roller bearing fixation workpiece is pressed on the upper and lower nut enclosing cover of described polished rod peripheral surface, this upper and lower nut enclosing cover and described upper and lower fixedly end face removably connect by bolt.
Further, described roller bearing fixation workpiece is at least one.
The utility model light circle screw mandrel, adopt this kind structure, the polished rod drive motion components produces straight line motion, the polished rod transmission is very close to each other, the processing technology and the equipment of polished rod are simpler, and mechanism can folding, can finish rapid movement and fine motion respectively, mechanism's assembling is adjusted simple, is suitable for the straight-line driving of mechanism; Adopt this structure, bearing need not have the screw rod operation of screw channel, only moves on polished rod, must be on polished rod lubricating oil filling, can avoid oxidation and rusting by doing antirust processing on the polished rod surface; This kind light is justified screw mandrel, and it is simple in structure, with low cost, is suitable for promoting; 1), in same required precision the new property of this practicality also has following beneficial effect:, manufacturing mechanism is required and can hang down
2), do not allow to be subject to the Environmental Conditions influence
3), screw rod can oxidation and rusting
4), the client can keep in repair nut voluntarily.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the utility model embodiment's a light circle screw mandrel decomposition texture schematic representation.
Embodiment
See also shown in Figure 1, light of the present utility model circle screw mandrel,
A kind of light circle screw mandrel of the present utility model,
A kind of light circle screw mandrel,
It comprises: the polished rod 1 of homogeneous diameter is arranged in this polished rod 1 peripheral and this polished rod 1 close-fitting bearing; The axis of the axis of this bearing and described polished rod 1 has space angle, when both relatively rotate, can form the cylindrical screw line tracking, described bearing rotates and produces the transmission straight-line displacement of described relatively polished rod 1 under the effect of frictional force, wherein, the distance of described transmission straight-line displacement is a following formula:
S=π·d·tga
S is a transmission straight-line displacement value in the formula, and d is the diameter value of described polished rod 1, and a is the space angle value of bearing axis and polished rod axis.
Adopt the light circle screw mandrel of this structure, polished rod 1 drive motion components produces straight line motion, polished rod 1 transmission is very close to each other, the processing technology and the equipment of polished rod 1 are simpler, mechanism can folding, can finish rapid movement and fine motion respectively, mechanism's assembling is adjusted simple, is suitable for the straight-line driving of mechanism.
In this embodiment, described bearing comprises: be arranged in described polished rod 1 peripheral and this polished rod 1 close-fitting roller bearing 2, have roller bearing 2 containing grooves, be used to install the roller bearing fixation workpiece 3 of ccontaining this roller bearing 2, with these roller bearing fixation workpiece 3 hard-wired upper and lower fixedly end faces 4,5, be used for roller bearing fixation workpiece 3 is pressed on the upper and lower nut enclosing cover 6,7 of described polished rod 1 peripheral surface, this upper and lower nut enclosing cover 6,7 and described upper and lower fixedly end face 4,5 removably connect by bolt.
The utility model light circle screw mandrel, adopt this kind structure, polished rod 1 drive motion components produces straight line motion, polished rod 1 transmission is very close to each other, the processing technology and the equipment of polished rod 1 are simpler, and mechanism can folding, can finish rapid movement and fine motion respectively, mechanism's assembling is adjusted simple, is suitable for the straight-line driving of mechanism; Adopt this structure, bearing need not have the screw rod operation of screw channel, only operation on polished rod 1, must be on polished rod 1 lubricating oil filling, can avoid oxidation and rusting by doing antirust processing on polished rod 1 surface; This kind light is justified screw mandrel, and it is simple in structure, with low cost, is suitable for promoting;
The embodiment of the above is a better embodiment of the present utility model; be not to limit concrete practical range of the present utility model with this; for example, the equivalence done of all shapes according to the utility model, structure changes all in protection domain of the present utility model.
Claims (3)
1. a light circle screw mandrel is characterized in that, comprising: the polished rod of homogeneous diameter is arranged in the peripheral and close-fitting bearing of this polished rod of this polished rod; The axis of this bearing and the axis of described polished rod have space angle, when both relatively rotate, can form the cylindrical screw line tracking, and described bearing rotates and produce the transmission straight-line displacement of described relatively polished rod under the effect of frictional force;
Wherein, the distance of described transmission straight-line displacement is a following formula:
S=π·d·tga
S is a transmission straight-line displacement value in the formula, and d is the diameter value of described polished rod, and a is the space angle value of bearing axis and polished rod axis.
2. a kind of light circle screw mandrel according to claim 1, it is characterized in that: described bearing comprises: be arranged in the peripheral and close-fitting roller bearing of this polished rod of described polished rod, have the roller bearing containing groove, be used to install the roller bearing fixation workpiece of ccontaining this roller bearing, be set on the described polished rod, with the hard-wired upper and lower fixedly end face of this roller bearing fixation workpiece, be used for the roller bearing fixation workpiece is pressed on the upper and lower nut enclosing cover of described polished rod peripheral surface, this upper and lower nut enclosing cover and described upper and lower fixedly end face removably connect by bolt.
3. a kind of light circle screw mandrel according to claim 2, it is characterized in that: described roller bearing fixation workpiece is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247631U CN201705876U (en) | 2010-06-13 | 2010-06-13 | Polished circular lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202247631U CN201705876U (en) | 2010-06-13 | 2010-06-13 | Polished circular lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705876U true CN201705876U (en) | 2011-01-12 |
Family
ID=43443032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202247631U Expired - Fee Related CN201705876U (en) | 2010-06-13 | 2010-06-13 | Polished circular lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705876U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133618A (en) * | 2013-03-14 | 2013-06-05 | 合肥米克光电技术有限公司 | No-tooth transmission lead screw with adjustable polish rod axis positions and transmission friction force |
| CN111473097A (en) * | 2020-04-02 | 2020-07-31 | 铜陵帆捷智能测控科技有限责任公司 | High-efficiency external rolling type large-lead polished rod toothless nut |
| CN112008106A (en) * | 2020-09-08 | 2020-12-01 | 深圳市思瑞精达精密仪器有限公司 | Positioner based on polished rod transmission principle |
-
2010
- 2010-06-13 CN CN2010202247631U patent/CN201705876U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133618A (en) * | 2013-03-14 | 2013-06-05 | 合肥米克光电技术有限公司 | No-tooth transmission lead screw with adjustable polish rod axis positions and transmission friction force |
| CN103133618B (en) * | 2013-03-14 | 2016-03-30 | 合肥米克光电技术有限公司 | A kind of polished rod axial location and the adjustable anodontia drive lead screw of gearing friction power |
| CN111473097A (en) * | 2020-04-02 | 2020-07-31 | 铜陵帆捷智能测控科技有限责任公司 | High-efficiency external rolling type large-lead polished rod toothless nut |
| CN112008106A (en) * | 2020-09-08 | 2020-12-01 | 深圳市思瑞精达精密仪器有限公司 | Positioner based on polished rod transmission principle |
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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: 20110112 Termination date: 20130613 |