CN104763787A - Ball screw transmission device - Google Patents
Ball screw transmission device Download PDFInfo
- Publication number
- CN104763787A CN104763787A CN201510186629.4A CN201510186629A CN104763787A CN 104763787 A CN104763787 A CN 104763787A CN 201510186629 A CN201510186629 A CN 201510186629A CN 104763787 A CN104763787 A CN 104763787A
- Authority
- CN
- China
- Prior art keywords
- retainer
- screw
- nut overcoat
- ball
- hole
- 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
Links
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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
-
- 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
- F16H—GEARING
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
Abstract
The invention relates to a ball screw transmission device and belongs to the technical field of machines. The ball screw transmission device comprises a screw and a transmission assembly. The transmission assembly comprises a nut sleeve and a holder. The inner surface of the nut sleeve is machined to be a smooth surface. A through hole is formed in the holder. After the holder is unfolded, the corresponding through hole center distance is an integral multiple of a screw pitch. The smooth surface of the nut sleeve is connected with the upper surface of the holder and then fixed, a steel ball is arranged in the through hole, the through hole and a roller path of the screw are identical in position in a circulatory mode and then the transmission assembly is formed. A transmission gear is arranged on the transmission assembly. The screw penetrates through the holder and is connected with the steel ball through a roller path on the screw. By the adoption of the ball screw transmission device, switching between rotation motion and linear motion of the transmission assembly and the screw can be achieved, friction force is small, the transmission efficiency is high, noise is low, the service life is prolonged, cost is reduced, the applicability is high, labor is greatly liberated, and production efficiency is improved.
Description
Technical field
The invention belongs to field of mechanical technique, particularly relate to a kind of ball leading screw driving device.
Background technique
Ball screw is the transmission component that machine tool and precision optical machinery the most often use, and its major function converts rotary motion to linear motion, or torque axis is changed into axial repeated action power, has highi degree of accuracy, reversibility and high efficiency feature concurrently simultaneously.Owing to having very little surface friction drag, ball screw is widely used in various industry equipment and precision type instrument.Bearing is become scroll actions from sliding action by its significance exactly.Current high-end mechanical field substitutes the screw mandrel of the sliding frictions such as trapezoidal screw substantially.
Need rotary motion to be converted to linear movement components low-end product at present and still use trapezoidal screw, trapezoidal screw transmission efficiency is low, and friction is large, and easily generate heat, the life-span is low.And though higher-end Riveting Tool adopts ball screw.But the ball screw used at present is mostly nut rolling way and lead screw ball track carries, and does not arrange retainer.Seldom arranging in retainer ball wire bar pair, retainer is only as preventing the closely front and back contact friction of too much steel ball, retainer is not used as carrier, again as independently sliding bearing use while not assisting screw mandrel to complete scroll actions nut overcoat.
Current ball screw has following deficiency and defect:
1, complex structure;
2, in order to high-mechanic, adopt Inner eycle, manufacturing procedure is many, especially needs the reverse through hole processing steel ball circulating rolling to guarantee that steel ball realizes Infinite Cyclic, complex structure, also makes the size of nut become very large;
3, add upper part feed screw nut except self complexity, cylindrical also needs gear or coordinates the connection set of transmission with other, makes complicated processing itself become more difficult, and unstable;
4, because raceway is the transmission of ball continuous circulation, each ball of circulation is except needing to bear except the extruding of screw mandrel and nut, also contact with each other with front and back ball and extrude, hamper the circulating rolling that ball is round and smooth, and easy frictional heating, because needs ball quantity is many, when higher speed rotates, noise is large, this end to end steel ball carrying time gapless or few gap process in, need screw mandrel and nut to process and there is high concentricity, and the low meeting of concentricity causes stuck; The position of part decentraction can be worn and torn comparatively fast, service life reduction.This just greatly reduces the efficiency of ball leading screw driving, and transmission efficiency reduces greatly;
5, in order to ensure the Infinite Cyclic of ball, requisite space is large, and weight is high, does molehill;
6, in order to realize ball circulating rolling in raceway, need to increase reverser, assembling trouble, cost intensive; Inconvenient maintenance.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is to provide a kind of ball leading screw driving device.
The solution of the present invention is as follows:
A kind of ball leading screw driving device, comprises screw mandrel and transmission group component; Described transmission group component comprises nut overcoat and retainer, described nut overcoat internal surface is processed into smooth surface, described retainer is processed with through hole, after retainer launches, corresponding through hole centre distance is the integral multiple of screw mandrel pitch, the smooth surface of described nut overcoat is connected rear fixing with retainer upper surface, be provided with steel ball in through hole, the position of through hole and the raceway of screw mandrel circulate and be consistent, form transmission group component, described transmission group component is provided with driving gear; Described screw mandrel is connected with steel ball by the raceway on screw mandrel through retainer.
The retainer of described transmission group component is arranged to T-shaped, and projection upper end is processed with driving gear I.
The nut overcoat of described transmission group component is arranged to cross, and the upper end of nut overcoat vertical direction is processed with driving gear II.
By being welded and fixed after described nut overcoat is connected with retainer upper surface, or fixed by locating stud.
End face bearing is provided with between described nut overcoat and retainer.
Described retainer is arranged to cross, and retainer bilateral symmetry is provided with nut overcoat.
This device tool has the following advantages and beneficial effect:
(1) nut overcoat inwall does not arrange raceway, and processing is simple, greatly reduces the requirement of process equipment;
(2) structure is simple, assembles simple and reliable;
(3) adjacent steel ball contacts before and after not needing, and rub little, transmission efficiency is high, and noise is little;
(4) concentricity easy processing reaches requirement, and in the deviation range allowed, owing to having certain intervals between steel ball and steel ball, this is interposed between automatic capturing in the circulating rolling of steel ball and makes up;
(5) can by carrying pulling force size steel ball number reasonable in design, such steel ball and raceway deposit lubricant grease with regard to there being enough spaces, make its life-span obtain guarantee;
(6) convenient disassembly, easy to maintenance, cost is low, and carrying is large;
(7) when only needing retainer to bear external force drive screw mandrel rotation, nut overcoat can assist screw mandrel to complete scroll actions, can can serve as again the effect of independent slide bearing under the effect of rolling steel balls, eliminate sliding bearing, greatly reduce the volume and weight of product;
(8) nut overcoat and retainer can be processed into gear or spline-like, pin-and-hole neatly as required so that by external force transmission, together with overcoat and retainer both can be fastened on, separately can be used to complete transmission again;
(9), screw mandrel lower at transmission accuracy mainly completes the occasion of the straight line motion with pulling force (as electric tool, Riveting Tool, the occasions such as machinery), screw mandrel can be arranged to hollow-core construction to meet structure needs, and such as, in Riveting Tool, screw mandrel is made hollow-core construction and just conveniently to be given up the requirement of smooth discharge of nail bar.
This is a kind of ball leading screw driving device with superior function, can arrange concrete parameter completely, greatly can reduce volume and weight according to pulling force flexible in size, and applicability is strong, has greatly liberated labour force, has improve manufacturing efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 to Fig. 5 is different structure embodiment schematic diagram of the present invention;
Fig. 6 is nut overcoat schematic diagram of the present invention;
Fig. 7 is that nut overcoat of the present invention launches schematic diagram;
Wherein: 1, screw mandrel; 2, locating stud; 3, screw; 4, nut overcoat; 5, retainer; 6, steel ball; 7, end face bearing; 8, driving gear I; 9, driving gear II; 41, smooth surface; 51, through hole.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described;
embodiment 1
As shown in Fig. 1, Fig. 3, Fig. 6 and Fig. 7, a kind of ball leading screw driving device, comprises screw mandrel 1 and transmission group component; Described transmission group component comprises outer 4 cover and the retainers 5 of nut, described nut overcoat 4 internal surface is processed into smooth surface 41, nut overcoat 4 is contained in the periphery of retainer 5, nut overcoat 4 inwall does not arrange raceway, smooth inwall restriction steel ball 6 moves radially, and makes steel ball 6 between screw mandrel 1, retainer 5, nut overcoat 4, form a relatively airtight space and have certain interval generation circulating rolling; Nut overcoat 4 is processed simply, greatly reduces the requirement of process equipment; Described retainer 5 is processed with through hole 51, can evenly arranges, the through hole 51 centre distance A that retainer 5 launches rear correspondence is the integral multiple of screw mandrel 1 pitch, and centre distance A can adjust according to carrying pulling force, meets corresponding intensity and precision needs; Be welded and fixed after the smooth surface 41 of described nut overcoat 4 is connected with retainer 5 upper surface, or by locating stud 2 and screw 3, nut overcoat 4 and retainer 5 fixed; Be provided with steel ball 6 in through hole 51, the position of through hole 51 and the raceway of screw mandrel 1 circulate and are consistent, and form transmission group component, described transmission group component is provided with driving gear; Described screw mandrel 1 is connected with steel ball 6 by the raceway on screw mandrel 1 through retainer 5, and rub little, transmission efficiency is high, and noise is little.The retainer 5 of described transmission group component is arranged to T-shaped, projection upper end is processed with driving gear I 8, transmission is carried out by driving gear I 8, the rotary drive of transmission group component can be realized, screw mandrel 1 is driven to realize the straight line motion of screw mandrel 1, this transmission device is also by the straight line motion of the rotational movement transmission group component of screw mandrel 1 simultaneously, can realize the mutual conversion of straight line motion and rotary motion.When retainer 5 rotates separately, nut overcoat 4 serves as independent slide bearing and uses under the effect of steel ball 6, eliminates cylindrical needle bearing, greatly reduces the volume of product.When screw mandrel 1 rotates, retainer 5 does straight line motion, and retainer 5 and nut overcoat 4 are connected and fixed, and rotating power acts on screw mandrel 1, and the retainer 5 be fixed is connected moving linearly with nut overcoat 4 with required drive carrier.End face bearing 7 or copper packing or teflon pad can be provided with between nut overcoat 4 and retainer 5, reduce friction and heating.The concentricity requirement of device easily reaches, and in the deviation range allowed, because steel ball 6 and steel ball 6 have certain intervals, this is interposed between automatic capturing in the circulating rolling of steel ball 6 and makes up.Can by carrying pulling force size steel ball 6 quantity reasonable in design, such steel ball 6 deposits lubricant grease with raceway with regard to there being enough spaces, reduces friction, makes its life-span obtain guarantee., screw mandrel lower at transmission accuracy mainly completes the occasion of the straight line motion with pulling force (as electric tool, Riveting Tool, the occasions such as machinery), now screw mandrel 1 can be arranged to hollow-core construction to meet structure needs, and such as, in Riveting Tool, screw mandrel is made hollow-core construction and just conveniently to be given up the requirement of smooth discharge of nail bar.Nut overcoat 4 and retainer 5 can be processed with driving cog or splined hole, pin-and-hole neatly as required so that by external force transmission.
embodiment 2
As shown in Fig. 2, Fig. 4, Fig. 6 and Fig. 7, a kind of ball leading screw driving device, comprises screw mandrel 1 and transmission group component; Described transmission group component comprises nut overcoat 4 and retainer 5, described nut overcoat 4 internal surface is processed into smooth surface 41, nut overcoat 4 is contained in the periphery of retainer 5, nut overcoat 4 inwall does not arrange raceway, smooth inwall restriction steel ball 6 moves radially, and makes steel ball 6 between screw mandrel 1, retainer 5, nut overcoat 4, form a relatively airtight space and have certain interval generation circulating rolling; Described retainer 5 is processed with through hole 51, the through hole 51 centre distance A that retainer 5 launches rear correspondence is the integral multiple of screw mandrel 1 pitch, the smooth surface 41 of described nut overcoat 4 is connected rear fixing with retainer 5 upper surface, steel ball 6 is provided with in through hole 51, form transmission group component, described transmission group component is provided with driving gear; Described screw mandrel 1 is connected with steel ball 6 by the raceway on screw mandrel 1 through retainer 5.The nut overcoat 4 of described transmission group component is arranged to cross, and the upper end of nut overcoat 4 vertical direction is processed with driving gear II 9.The smooth surface 41 of nut overcoat 4 is connected the latter by locating stud 2 and screw 3 nut overcoat 4 and retainer 5 axial restraint with retainer 5 upper surface, also can by two locating stud 2 nut overcoat 4 with retainer 5 is radial fixes.
embodiment 3
As shown in Fig. 5, Fig. 6 and Fig. 7, a kind of ball leading screw driving device, comprises screw mandrel 1 and transmission group component; Described transmission group component comprises outer 4 cover and the retainers 5 of nut, described nut overcoat 4 internal surface is processed into smooth surface 41, nut overcoat 4 is contained in the periphery of retainer 5, nut overcoat 4 inwall does not arrange raceway, smooth inwall restriction steel ball 6 moves radially, and makes steel ball 6 between screw mandrel 1, retainer 5, nut overcoat 4, form a relatively airtight space and have certain interval generation circulating rolling; Described retainer 5 is processed with through hole 51, the through hole 51 centre distance A that retainer 5 launches rear correspondence is the integral multiple of screw mandrel 1 pitch, the smooth surface 41 of described nut overcoat 4 is connected rear fixing with retainer 5 upper surface, steel ball 6 is provided with in through hole 51, form transmission group component, described transmission group component is provided with driving gear; Described screw mandrel 1 is connected with steel ball 6 by the raceway on screw mandrel 1 through retainer 5.The retainer 5 of described transmission group component is arranged to cross, and projection upper end is processed with driving gear I 8; Described retainer 5 bilateral symmetry is provided with nut overcoat 4, is provided with end face bearing 7 or copper packing or teflon pad between nut overcoat 4 and retainer 5, reduces friction and heating.And retainer 5 need not can all arrange through hole 51 at axial direction above, through hole 51 can be evenly set in the both sides radial direction of retainer 5, place steel ball 6, carry out the transmission of screw mandrel 1, thus decrease the quantity of steel ball 6, and enhance the intensity of retainer 5, improve working life, provide cost savings, and applicability is strong, greatly liberate labour force, improve manufacturing efficiency.
Although give detailed description and explanation to the specific embodiment of the present invention above; but what should indicate is; we can carry out various equivalence according to conception of the present invention to above-mentioned mode of execution and change and amendment; its function produced do not exceed that specification contains yet spiritual time, all should within protection scope of the present invention.
Claims (6)
1. a ball leading screw driving device, comprises screw mandrel and transmission group component; It is characterized in that: described transmission group component comprises nut overcoat and retainer, described nut overcoat internal surface is processed into smooth surface, described retainer is processed with through hole, after retainer launches, corresponding through hole centre distance is the integral multiple of screw mandrel pitch, the smooth surface of described nut overcoat is connected rear fixing with retainer upper surface, be provided with steel ball in through hole, the position of through hole and the raceway of screw mandrel circulate and be consistent, form transmission group component, described transmission group component is provided with driving gear; Described screw mandrel is connected with steel ball by the raceway on screw mandrel through retainer.
2. a kind of ball leading screw driving device according to claim 1, is characterized in that: the retainer of described transmission group component is arranged to T-shaped, and projection upper end is processed with driving gear I.
3. a kind of ball leading screw driving device according to claim 1, it is characterized in that: the nut overcoat of described transmission group component is arranged to cross, the upper end of nut overcoat vertical direction is processed with driving gear II.
4. a kind of ball leading screw driving device according to claim 1, be is characterized in that: by being welded and fixed after described nut overcoat is connected with retainer upper surface, or fixed by locating stud.
5. a kind of ball leading screw driving device according to claim 1, is characterized in that: be provided with end face bearing between described nut overcoat and retainer.
6. a kind of ball leading screw driving device according to claim 1, it is characterized in that: described retainer is arranged to cross, retainer bilateral symmetry is provided with nut overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186629.4A CN104763787A (en) | 2015-04-20 | 2015-04-20 | Ball screw transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186629.4A CN104763787A (en) | 2015-04-20 | 2015-04-20 | Ball screw transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104763787A true CN104763787A (en) | 2015-07-08 |
Family
ID=53645800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510186629.4A Pending CN104763787A (en) | 2015-04-20 | 2015-04-20 | Ball screw transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763787A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964868A (en) * | 2016-07-01 | 2016-09-28 | 洪劲松 | Labor-saving riveting device and manual nut riveting tool |
| CN107269695A (en) * | 2016-03-30 | 2017-10-20 | 日本东晟株式会社 | Ball-screw |
| CN107435718A (en) * | 2016-06-01 | 2017-12-05 | 株式会社捷太格特 | The manufacture method of ball-screw apparatus, transfer and keeper |
| CN112128328A (en) * | 2020-09-23 | 2020-12-25 | 中航光电科技股份有限公司 | Novel spiral transmission mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5999156A (en) * | 1982-11-30 | 1984-06-07 | Sadahito Nakagawa | Simplified ball screw |
| JPH04131549A (en) * | 1990-09-21 | 1992-05-06 | Yamato Rashi:Kk | Feed screw |
| CN1438437A (en) * | 2003-03-21 | 2003-08-27 | 谢仲明 | Non-blocked ballscrew |
| CN2703922Y (en) * | 2003-03-21 | 2005-06-08 | 谢仲明 | Blocked-free ball screw |
| CN104500670A (en) * | 2014-11-17 | 2015-04-08 | 西安航空制动科技有限公司 | Inner circulation ball screw component for airplane electric brake |
| CN204572989U (en) * | 2015-04-20 | 2015-08-19 | 洪劲松 | A kind of ball leading screw driving device |
-
2015
- 2015-04-20 CN CN201510186629.4A patent/CN104763787A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5999156A (en) * | 1982-11-30 | 1984-06-07 | Sadahito Nakagawa | Simplified ball screw |
| JPH04131549A (en) * | 1990-09-21 | 1992-05-06 | Yamato Rashi:Kk | Feed screw |
| CN1438437A (en) * | 2003-03-21 | 2003-08-27 | 谢仲明 | Non-blocked ballscrew |
| CN2703922Y (en) * | 2003-03-21 | 2005-06-08 | 谢仲明 | Blocked-free ball screw |
| CN104500670A (en) * | 2014-11-17 | 2015-04-08 | 西安航空制动科技有限公司 | Inner circulation ball screw component for airplane electric brake |
| CN204572989U (en) * | 2015-04-20 | 2015-08-19 | 洪劲松 | A kind of ball leading screw driving device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269695A (en) * | 2016-03-30 | 2017-10-20 | 日本东晟株式会社 | Ball-screw |
| CN107269695B (en) * | 2016-03-30 | 2020-08-07 | 日本东晟株式会社 | Ball screw |
| CN107435718A (en) * | 2016-06-01 | 2017-12-05 | 株式会社捷太格特 | The manufacture method of ball-screw apparatus, transfer and keeper |
| CN105964868A (en) * | 2016-07-01 | 2016-09-28 | 洪劲松 | Labor-saving riveting device and manual nut riveting tool |
| CN112128328A (en) * | 2020-09-23 | 2020-12-25 | 中航光电科技股份有限公司 | Novel spiral transmission mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
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| RJ01 | Rejection of invention patent application after publication |