CN205331342U - Ball with adjustable pretightning force structure - Google Patents
Ball with adjustable pretightning force structure Download PDFInfo
- Publication number
- CN205331342U CN205331342U CN201620037240.3U CN201620037240U CN205331342U CN 205331342 U CN205331342 U CN 205331342U CN 201620037240 U CN201620037240 U CN 201620037240U CN 205331342 U CN205331342 U CN 205331342U
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- China
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- screw nut
- ball
- screw
- feed screw
- adjusting ring
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Abstract
The utility model belongs to the technical field of it uses to count empty lathe, specifically disclose a ball with adjustable pretightning force structure, by ball, reached the screw nut, the 2nd screw nut that set up on ball, and set up on ball and the flange who is connected on one side of the 2nd screw nut, and the pretightning force adjusting part that sets up between a screw nut, the 2nd screw nut is formed. The utility model discloses a ball with adjustable pretightning force structure's beneficial effect lies in: 1, adjust the pretension requirement between a screw nut and the 2nd screw nut through the mode of adjusting ring, spacing collar, location arch, screw rotary sleeve, first adjusting ring and second adjusting ring in the timing, the pretightning force distributes evenly and timing step safety, reliable between a screw nut and the 2nd screw nut simultaneously, 2, realize the accurate nature of rotatory adjustment in the timing through the counterpoint recess, improve timing efficiency.
Description
Technical field
This utility model belongs to the empty machine tool applications technical field of number, is specifically related to a kind of ball-screw with scalable pre-fastening structure, is effectively improved job stability and the positioning precision of ball-screw。
Background technology
Ball-screw is that gyration is converted into rectilinear motion, or by the desirable product that transform linear motion is gyration, and it is actuated element most-often used on machine tool and precision optical machinery。Ball-screw is made up of screw rod, nut, steel ball, pre-tabletting, reverser, dust excluder, its function is the motion that is in line by convert rotational motion, or torque axis is changed into axial repeated action power, have high accuracy, reversibility and high efficiency feature concurrently simultaneously, having only small frictional resistance, ball-screw is widely used in various industrial equipment and precision instrument。
In actual use, error due to design, manufacture and assembling, ball-screw always can exist between ball and raceway gap, and in order to solve the problems referred to above, the method applying pretightning force is generally adopted to eliminate this type of gap, the only rational pretightning force of adjustment, just can be effectively improved job stability and the positioning precision of ball-screw, because excessive pretightning force can lower efficiency, unstable wear and cause frictional heat。But, in the ball-screw of actual motion, the fretting wear between ball and raceway is inevitable, particularly after long-play, being on the increase of wear extent can cause that the ball-screw pretightning force extent of damage is increasingly severe, the existence of pretightning force loss will severely impact dynamic property and the reliability of ball-screw, accelerate to damage ball-screw。Therefore, adjustable pre-fastening structure how reasonable in design, stable, efficient is current urgently to be resolved hurrily。
Based on the problems referred to above, this utility model provides a kind of ball-screw with scalable pre-fastening structure。
Utility model content
Utility model purpose: the purpose of this utility model is to provide a kind of ball-screw with scalable pre-fastening structure, its reasonable in design, stable working state, the error gap of design, manufacture or assembling is carried out adjustment by adjustment pretightning force adjusting part module by real work, is effectively improved job stability and the positioning precision of ball-screw。
Technical scheme: this utility model provides a kind of ball-screw with scalable pre-fastening structure, by ball-screw, and it is arranged on the first feed screw nut on ball-screw, the second feed screw nut, and the adpting flange being arranged on ball-screw and being connected with the second feed screw nut side, and it is arranged on the pretightning force adjusting part composition between the first feed screw nut, the second feed screw nut；Described pretightning force adjusting part, including the adjusting ring being connected with the first feed screw nut, and the positioning convex being connected with adjusting ring, and the screw thread rotation set being connected with positioning convex, and it is arranged on the first adjusting ring that screw thread rotation puts and is used in combination with screw thread rotation set, and the spacing collar being connected with the second feed screw nut, and the second adjusting ring being arranged on ball-screw and being used in combination with screw thread rotation set；Described first feed screw nut, adpting flange, adjusting ring, positioning convex, screw thread rotation set, the second feed screw nut and spacing collar are provided with female thread circle be used in combination with ball-screw。
The technical program, described adjusting ring, positioning convex, screw thread rotation set are formed in one structure, and wherein, the diameter of adjusting ring, positioning convex, screw thread rotation set successively decreases successively。
The technical program, described adjusting ring is identical with the diameter of spacing collar and is respectively 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 spacing collar are provided with the groove that can carry out para-position。
The technical program, the width L of described first feed screw nut is more than the width L1 of the second feed screw nut。
Compared with prior art, having the beneficial effects that of a kind of ball-screw with scalable pre-fastening structure of the present utility model: 1, adjust the pretension requirement between the first feed screw nut and the second feed screw nut by the mode of adjusting ring, spacing collar, positioning convex, screw thread rotation set, the first adjusting ring and the second adjusting ring in adjustment, between the first feed screw nut and the second feed screw nut, pretightning force is evenly distributed and alignment step is safe and reliable simultaneously；2, adjustment realizes rotating the accuracy adjusted by para-position groove, improve adjustment efficiency。This utility model is reasonable in design, stable working state, easily promotes。
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of ball-screw with scalable pre-fastening structure of the present utility model；
Fig. 2 is the groove structure schematic diagram on a kind of ball-screw pretightning force adjusting part with scalable pre-fastening structure of the present utility model；
Fig. 3 be a kind of ball-screw with scalable pre-fastening structure of the present utility model adjustment after structural representation；
Fig. 4 and Fig. 5 is the integrative-structure schematic diagram of the adjusting ring of a kind of ball-screw with scalable pre-fastening structure of the present utility model, positioning convex and screw thread rotation set；
Wherein, in figure, sequence number mark is as follows: 1-ball-screw, 2-the first feed screw nut, 3-the second feed screw nut, 4-adjusting ring, 5-spacing collar, 6-positioning convex, 7-screw thread rotation set, 8-the first adjusting ring, 9-the second adjusting ring, 10-groove, 11-adpting flange。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, it is further elucidated with this utility model。
Embodiment
A kind of ball-screw with scalable pre-fastening structure as shown in Figure 1, do not marked by ball-screw 1(screw thread figure), and it is arranged on first feed screw nut the 2, second feed screw nut 3 on ball-screw 1, and the adpting flange 11 being arranged on ball-screw 1 and being connected with the second feed screw nut 3 side, and it is arranged on the pretightning force adjusting part composition between first feed screw nut the 2, second feed screw nut 3；Pretightning force adjusting part, including the adjusting ring 4 being connected with the first feed screw nut 2, and the positioning convex 6 being connected with adjusting ring 4, and the screw thread rotation set 7(screw thread figure being connected with positioning convex 6 does not mark), and be arranged on screw thread rotation set 7 and overlap 7 the first adjusting rings 8 being used in combination with screw thread rotation, and the spacing collar 5 being connected with the second feed screw nut 3, and it is arranged on ball-screw 1 and overlaps 7 the second adjusting rings 9 being used in combination with screw thread rotation；First feed screw nut 2, adpting flange 11, adjusting ring 4, positioning convex 6, screw thread rotation set the 7, second feed screw nut 3 and spacing collar 5 are provided with female thread circle be used in combination with ball-screw 1。
The structure it is further preferred that adjusting ring 4 as shown in Fig. 2, Fig. 4 and Fig. 5, positioning convex 6, screw thread rotation set 7 is formed in one, wherein, the diameter of adjusting ring 4, positioning convex 6, screw thread rotation set 7 successively decreases successively；Adjusting ring 4 is identical with the diameter of spacing collar 5 and is respectively 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 more than the width L1 of the second feed screw nut 3, and after above-mentioned dimensional structure is to ensure that in work the stability of location and adjustment, pretightning force is evenly distributed；Being provided with, on first feed screw nut 2, adjusting ring the 4, second feed screw nut 3 and spacing collar 5, the groove 10 that can carry out para-position, overall adjustment completes rearward recess 10 and constitutes mounting 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, it is first depending on adjusting requirement, first adjusting ring the 8, second adjusting ring 9 is rotated to screw thread rotation set 7, now, the positioning convex 6 that adjusting ring 4 side is arranged plays buffer limit effect, reduce impact wear, according still further to adjusted requirement, individually rotate first feed screw nut the 2, second feed screw nut 3 or rotate first feed screw nut the 2, second feed screw nut 3 move toward one another simultaneously, completing to compress adjustment purpose, para-position groove 10 then plays reference role in whole calibration procedures (whether putting in place)。
Pretightning force adjusting part of the present utility model, reasonable in design, adjustment is simple, solves that the abrasion of conventional ball leading screw is big, changes and safeguard phenomenon frequently, improves enterprise productivity to a certain extent, reduce enterprise's production cost。
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvement, these improvement also should be regarded as protection domain of the present utility model。
Claims (5)
1. a ball-screw with scalable pre-fastening structure, it is characterized in that: by ball-screw (1), and it is arranged on the first feed screw nut (2) on ball-screw (1), the second feed screw nut (3), and be arranged on the adpting flange (11) that ball-screw (1) is upper and is connected with the second feed screw nut (3) side, and it is arranged on the pretightning force adjusting part composition between the first feed screw nut (2), the second feed screw nut (3)；Described pretightning force adjusting part, including the adjusting ring (4) being connected with the first feed screw nut (2), and the positioning convex (6) being connected with adjusting ring (4), and the screw thread rotation set (7) being connected with positioning convex (6), and it is arranged on the first adjusting ring (8) that screw thread rotation set (7) is upper and is used in combination with screw thread rotation set (7), and the spacing collar (5) being connected with the second feed screw nut (3), and it is arranged on the second adjusting ring (9) that ball-screw (1) is upper and is used in combination with screw thread rotation set (7)；Described first feed screw nut (2), adpting flange (11), adjusting ring (4), positioning convex (6), screw thread rotation set (7), the second feed screw nut (3) and spacing collar (5) are provided with female thread circle be used in combination with ball-screw (1)。
2. a kind of ball-screw with scalable pre-fastening structure according to claim 1, it is characterized in that: described adjusting ring (4), positioning convex (6), screw thread rotation set (7) are formed in one structure, wherein, adjusting ring (4), positioning convex (6), screw thread rotation set (7) diameter successively decrease successively。
3. a kind of ball-screw with scalable pre-fastening structure according to claim 2, it is characterised in that: described adjusting ring (4) is identical with the diameter of spacing collar (5) and is respectively less than the first feed screw nut (2) or the second feed screw nut (3) diameter。
4. a kind of ball-screw with scalable pre-fastening structure according to claim 3, it is characterised in that: described first feed screw nut (2), adjusting ring (4), the second feed screw nut (3) and spacing collar (5) are provided with the groove (10) that can carry out para-position。
5. a kind of ball-screw with scalable pre-fastening structure according to claim 3, it is characterised in that: the width L of described first feed screw nut (2) is more than the width L1 of the second feed screw nut (3)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037240.3U CN205331342U (en) | 2016-01-15 | 2016-01-15 | Ball with adjustable pretightning force structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037240.3U CN205331342U (en) | 2016-01-15 | 2016-01-15 | Ball with adjustable pretightning force structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331342U true CN205331342U (en) | 2016-06-22 |
Family
ID=56196283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620037240.3U Expired - Fee Related CN205331342U (en) | 2016-01-15 | 2016-01-15 | Ball with adjustable pretightning force structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546067A (en) * | 2016-01-15 | 2016-05-04 | 江苏上传传动机械有限公司 | Ball screw with adjustable pretension force structure |
| CN109611525A (en) * | 2018-11-16 | 2019-04-12 | 北京航天计量测试技术研究所 | A kind of Precision Linear Moving guiding mechanism of preload adjustable |
-
2016
- 2016-01-15 CN CN201620037240.3U patent/CN205331342U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546067A (en) * | 2016-01-15 | 2016-05-04 | 江苏上传传动机械有限公司 | Ball screw with adjustable pretension force structure |
| CN109611525A (en) * | 2018-11-16 | 2019-04-12 | 北京航天计量测试技术研究所 | A kind of Precision Linear Moving guiding mechanism of preload adjustable |
| CN109611525B (en) * | 2018-11-16 | 2020-08-21 | 北京航天计量测试技术研究所 | Pretightening force adjustable precise linear motion guide mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20170115 |