CN105546067A - Ball screw with adjustable pretension force structure - Google Patents
Ball screw with adjustable pretension force structure Download PDFInfo
- Publication number
- CN105546067A CN105546067A CN201610025732.5A CN201610025732A CN105546067A CN 105546067 A CN105546067 A CN 105546067A CN 201610025732 A CN201610025732 A CN 201610025732A CN 105546067 A CN105546067 A CN 105546067A
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- China
- Prior art keywords
- screw nut
- ball screw
- feed screw
- adjusting ring
- screw
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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
- 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
- F16H25/2209—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with arrangements for taking up backlash
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to the technical field of application of numerical control machine tools and particularly discloses a ball screw with an adjustable pretension force structure. The ball screw with the adjustable pretension force structure comprises a ball screw, a first screw nut and a second screw nut arranged on the ball screw, a connection flange arranged on the ball screw and connected with one side of the second screw nut, and a pretension force regulating component between the first screw nut and the second screw nut. The ball screw with the adjustable pretension force structure has the beneficial effects: the pre-tightening requirement between the first screw nut and the second screw nut is adjusted by a manner of adjusting an adjusting ring, a limit ring, a positioning protrusion, a threaded rotary sleeve, a first adjusting ring and a second adjusting ring, the pretension force between the first screw nut and the second screw nut is uniformly distributed, the adjustment steps are safe and reliable, and the rotary adjustment accuracy is achieved by aligning grooves during the adjustment. The ball screw with the adjustable pretension force structure is reasonable in design and stable in working state.
Description
Technical field
The invention belongs to several empty machine tool applications technical field, be specifically related to a kind of ball screw with adjustable pre-fastening structure, effectively improve working stability and the positioning precision of ball screw.
Background technique
Ball screw is that rotation motion is converted into straight line motion, or is the desirable product of rotation motion by transform linear motion, and it is the transmission component that machine tool and precision optical machinery the most often use.Ball screw is made up of screw rod, nut, steel ball, pre-compressing tablet, reverser, dust arrester, its function is the motion that is in line by convert rotational motion, or change torque axis into axial repeated action power, have highi degree of accuracy, reversibility and high efficiency feature concurrently simultaneously, have very little surface friction drag, ball screw is widely used in various industry equipment and precision type instrument.
In actual use, due to the error designed, manufacture and assemble, always gap can be there is between ball and raceway in ball screw, and in order to solve the problem, the method that usual employing applies pretightening force eliminates this type of gap, only have the rational pretightening force of adjustment, effectively could improve working stability and the positioning precision of ball screw, because excessive pretightening force can lower efficiency, unstable wear and cause frictional heat.But, fretting wear in the ball screw of actual motion between ball and raceway is inevitable, particularly after long-play, being on the increase of wear extent can cause the ball screw pretightening force extent of damage more and more serious, the existence of pretightening force loss will seriously affect dynamic performance and the reliability of ball screw, accelerate to damage ball screw.Therefore, how reasonable in design, stable, efficiently adjustable pre-fastening structure be current urgently to be resolved hurrily.
Based on the problems referred to above, the invention provides a kind of ball screw with adjustable pre-fastening structure.
Summary of the invention
Goal of the invention: the object of this invention is to provide a kind of ball screw with adjustable pre-fastening structure, its reasonable in design, stable working state, in real work, by adjustment pretightening force adjusting part module, adjustment is carried out to the error gap designed, manufacture or assemble, effectively improve working stability and the positioning precision of ball screw.
Technological scheme: the invention provides a kind of ball screw with adjustable pre-fastening structure, by ball screw, and the first feed screw nut, the second feed screw nut that are arranged on ball screw, and be arranged on the adpting flange be connected on ball screw and with the second feed screw nut side, and be arranged on the pretightening force adjusting part composition between the first feed screw nut, the second feed screw nut; Described pretightening force adjusting part, comprise the Adjusting ring be connected with the first feed screw nut, and the positioning convex to be connected with Adjusting ring, and the screw thread rotation cover to be connected with positioning convex, and be arranged on screw thread rotation and put and the first Adjusting ring be used in combination with screw thread rotation cover, and the position limit cycle to be connected with the second feed screw nut, and to be arranged on ball screw and the second Adjusting ring be used in combination with screw thread rotation cover; Described first feed screw nut, adpting flange, Adjusting ring, positioning convex, screw thread rotation cover, the second feed screw nut and position limit cycle are provided with internal thread circle and ball screw is used in combination.
The technical program, described Adjusting ring, positioning convex, screw thread rotation cover are formed in one structure, and wherein, the diameter of Adjusting ring, positioning convex, screw thread rotation cover successively decreases successively.
The technical program, described Adjusting ring is identical with the diameter of position limit cycle and be all less than the first feed screw nut or the second feed screw nut diameter.
The technical program, described first feed screw nut, Adjusting ring, the second feed screw nut and position limit cycle are provided with the groove that can carry out contraposition.
The technical program, the width L of described first feed screw nut is greater than the width L1 of the second feed screw nut.
Compared with prior art, a kind of beneficial effect with the ball screw of adjustable pre-fastening structure of the present invention is: 1, in adjustment, adjust the pretension requirement between the first feed screw nut and the second feed screw nut by the mode of Adjusting ring, position limit cycle, positioning convex, screw thread rotation cover, the first Adjusting ring and the second Adjusting ring, and simultaneously between the first feed screw nut and the second feed screw nut, pretightening force is evenly distributed and alignment step safety, reliable; 2, realize by contraposition groove the accuracy rotating adjustment in adjustment, improve adjustment efficiency.The present invention is reasonable in design, stable working state, easily promotes.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the ball screw of adjustable pre-fastening structure of the present invention;
Fig. 2 is a kind of groove structure schematic diagram had on the ball screw pretightening force adjusting part of adjustable pre-fastening structure of the present invention;
Fig. 3 of the present inventionly a kind ofly has structural representation after the adjustment of the ball screw of adjustable pre-fastening structure;
Fig. 4 and Fig. 5 is the integrative-structure schematic diagram of a kind of Adjusting ring, positioning convex and screw thread rotation cover with the ball screw of adjustable pre-fastening structure of the present invention;
Wherein, in figure, sequence number mark is as follows: 1-ball screw, 2-first feed screw nut, 3-second feed screw nut, 4-Adjusting ring, 5-position limit cycle, 6-positioning convex, 7-screw thread rotation cover, 8-first Adjusting ring, 9-second Adjusting ring, 10-groove, 11-adpting flange.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
Embodiment
A kind of ball screw with adjustable pre-fastening structure as shown in Figure 1, do not mark by ball screw 1(screw thread figure), and the first feed screw nut 2, second feed screw nut 3 be arranged on ball screw 1, and be arranged on the adpting flange 11 be connected on ball screw 1 and with the second feed screw nut 3 side, and be arranged on the pretightening force adjusting part composition between the first feed screw nut 2, second feed screw nut 3; Pretightening force adjusting part, comprise the Adjusting ring 4 be connected with the first feed screw nut 2, and the positioning convex 6 to be connected with Adjusting ring 4, and the screw thread rotation to be connected with positioning convex 6 overlap in 7(screw thread figure do not mark), and be arranged on screw thread rotation cover 7 on and overlap 7 the first Adjusting rings 8 be used in combination with screw thread rotation, and the position limit cycle 5 to be connected with the second feed screw nut 3, and to be arranged on ball screw 1 and to overlap 7 the second Adjusting rings 9 be used in combination with screw thread rotation; First feed screw nut 2, adpting flange 11, Adjusting ring 4, positioning convex 6, screw thread rotation cover the 7, second feed screw nut 3 and position limit cycle 5 are provided with internal thread circle and ball screw 1 is used in combination.
Further preferred, the Adjusting ring 4 as shown in Fig. 2, Fig. 4 and Fig. 5, positioning convex 6, screw thread rotation cover 7 is formed in one structure, and wherein, the diameter of Adjusting ring 4, positioning convex 6, screw thread rotation cover 7 successively decreases successively; Adjusting ring 4 is identical with the diameter of position limit cycle 5 and be all less than the first feed screw nut 2 or the second feed screw nut 3 diameter; The width L of the first feed screw nut 2 is greater than the width L1 of the second feed screw nut 3, and above-mentioned dimensional structure is that after stability in order to locate in guarantee work and adjustment, pretightening force is evenly distributed; First feed screw nut 2, Adjusting ring 4, second feed screw nut 3 and position limit cycle 5 are provided with the groove 10 that can carry out contraposition, and overall adjustment completes rear groove 10 and forms waist shaped hole structure as shown in Figure 3, represents that adjustment puts in place.
Further as shown in Figure 3, concrete adjustment comprises the following steps, first according to adjustment requirement, first Adjusting ring 8, second Adjusting ring 9 is rotated on screw thread rotation cover 7, now, the positioning convex 6 that Adjusting ring 4 side is arranged plays buffer limit effect, reduce impact wear, again according to adjusted requirement, independent rotation first feed screw nut 2, second feed screw nut 3 or simultaneously rotate the first feed screw nut 2, second feed screw nut 3 move toward one another, complete and compress adjustment object, contraposition groove 10 then plays reference role in whole calibration procedures (whether putting in place).
Pretightening force adjusting part of the present invention, reasonable in design, adjustment is simple, solve the wearing and tearing of conventional ball leading screw large, change and safeguard phenomenon frequently, improve enterprise productivity to a certain extent, reduce enterprise's cost of production.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.
Claims (5)
1. one kind has the ball screw of adjustable pre-fastening structure, it is characterized in that: by ball screw (1), and the first feed screw nut (2), the second feed screw nut (3) that are arranged on ball screw (1), and be arranged on the upper and adpting flange (11) is connected with the second feed screw nut (3) side of ball screw (1), and the pretightening force adjusting part be arranged between the first feed screw nut (2), the second feed screw nut (3) forms; Described pretightening force adjusting part, comprise the Adjusting ring (4) be connected with the first feed screw nut (2), and the positioning convex (6) to be connected with Adjusting ring (4), and the screw thread rotation cover (7) to be connected with positioning convex (6), and be arranged on upper and the first Adjusting ring (8) be used in combination with screw thread rotation cover (7) of screw thread rotation cover (7), and the position limit cycle (5) to be connected with the second feed screw nut (3), and be arranged on upper and the second Adjusting ring (9) be used in combination with screw thread rotation cover (7) of ball screw (1); Described first feed screw nut (2), adpting flange (11), Adjusting ring (4), positioning convex (6), screw thread rotation cover (7), the second feed screw nut (3) and position limit cycle (5) are provided with internal thread circle and ball screw (1) is used in combination.
2. a kind of ball screw with adjustable pre-fastening structure according to claim 1, it is characterized in that: described Adjusting ring (4), positioning convex (6), screw thread rotation cover (7) are formed in one structure, wherein, the diameter of Adjusting ring (4), positioning convex (6), screw thread rotation cover (7) successively decreases successively.
3. a kind of ball screw with adjustable pre-fastening structure according to claim 2, is characterized in that: described Adjusting ring (4) is identical with the diameter of position limit cycle (5) and be all less than the first feed screw nut (2) or the second feed screw nut (3) diameter.
4. a kind of ball screw with adjustable pre-fastening structure according to claim 3, is characterized in that: described first feed screw nut (2), Adjusting ring (4), the second feed screw nut (3) and position limit cycle (5) are provided with the groove (10) that can carry out contraposition.
5. according to claim 3ly a kind ofly force feeder for tabletting machine, it is characterized in that: the width L of described first feed screw nut (2) is greater than the width L1 of the second feed screw nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025732.5A CN105546067B (en) | 2016-01-15 | 2016-01-15 | It is a kind of that there is the ball-screw that can adjust pre-fastening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025732.5A CN105546067B (en) | 2016-01-15 | 2016-01-15 | It is a kind of that there is the ball-screw that can adjust pre-fastening structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105546067A true CN105546067A (en) | 2016-05-04 |
| CN105546067B CN105546067B (en) | 2017-11-07 |
Family
ID=55825494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610025732.5A Active CN105546067B (en) | 2016-01-15 | 2016-01-15 | It is a kind of that there is the ball-screw that can adjust pre-fastening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546067B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848691A (en) * | 2017-11-30 | 2019-06-07 | 上海微电子装备（集团）股份有限公司 | Modified regulation locking device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH102393A (en) * | 1996-06-14 | 1998-01-06 | Mitsubishi Heavy Ind Ltd | Pre-load device for ball screw |
| DE102005043525A1 (en) * | 2005-09-13 | 2007-03-22 | Hiwin Technologies Corp. | Ball screw pre-stressing structure, has bevels contact with pre-stressing pieces to subject spindle nuts to pressure by relative displacement between pieces, where connection thickness of pieces is changed in pre-stressing conditions |
| CN201979336U (en) * | 2011-03-28 | 2011-09-21 | 陆向辉 | Double-nut gasket type internal recycling ball-screw assembly |
| CN102628499A (en) * | 2011-02-02 | 2012-08-08 | 福特全球技术公司 | Ball screw and steering device equipped with the same |
| TW201430245A (en) * | 2013-01-30 | 2014-08-01 | Hiwin Tech Corp | Adjustable pre-pressing device |
| CN205331342U (en) * | 2016-01-15 | 2016-06-22 | 江苏上传传动机械有限公司 | Ball with adjustable pretightning force structure |
-
2016
- 2016-01-15 CN CN201610025732.5A patent/CN105546067B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH102393A (en) * | 1996-06-14 | 1998-01-06 | Mitsubishi Heavy Ind Ltd | Pre-load device for ball screw |
| DE102005043525A1 (en) * | 2005-09-13 | 2007-03-22 | Hiwin Technologies Corp. | Ball screw pre-stressing structure, has bevels contact with pre-stressing pieces to subject spindle nuts to pressure by relative displacement between pieces, where connection thickness of pieces is changed in pre-stressing conditions |
| CN102628499A (en) * | 2011-02-02 | 2012-08-08 | 福特全球技术公司 | Ball screw and steering device equipped with the same |
| CN201979336U (en) * | 2011-03-28 | 2011-09-21 | 陆向辉 | Double-nut gasket type internal recycling ball-screw assembly |
| TW201430245A (en) * | 2013-01-30 | 2014-08-01 | Hiwin Tech Corp | Adjustable pre-pressing device |
| CN205331342U (en) * | 2016-01-15 | 2016-06-22 | 江苏上传传动机械有限公司 | Ball with adjustable pretightning force structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848691A (en) * | 2017-11-30 | 2019-06-07 | 上海微电子装备（集团）股份有限公司 | Modified regulation locking device |
| CN109848691B (en) * | 2017-11-30 | 2021-04-02 | 上海微电子装备（集团）股份有限公司 | Improved adjusting and locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105546067B (en) | 2017-11-07 |
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