CN202441824U - Ball screw pair - Google Patents
Ball screw pair Download PDFInfo
- Publication number
- CN202441824U CN202441824U CN2012200015696U CN201220001569U CN202441824U CN 202441824 U CN202441824 U CN 202441824U CN 2012200015696 U CN2012200015696 U CN 2012200015696U CN 201220001569 U CN201220001569 U CN 201220001569U CN 202441824 U CN202441824 U CN 202441824U
- Authority
- CN
- China
- Prior art keywords
- leading screw
- nut
- spiral
- position limit
- ball screw
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a ball screw pair, which comprises a lead screw (1) and a nut (2) sleeved on the lead screw, wherein a guide sleeve (3) is arranged between the lead screw (1) and the nut (2), and is provided with a plurality of through holes; a spiral direction formed by the through holes (9) is consistent with the spiral direction of the lead screw (1); a steel ball (5) extending into a nut inner wall groove (7) and a lead screw spiral groove (8) is arranged in each through hole; the two ends of the lead screw (1) are provided with at least one limiting pin (4); and the two ends of the guide sleeve (3) are provided with limiting grooves (6) which are matched with the limiting pins (4). The two ends of the ball screw pair are provided with the limiting pins, so that the two ends of the ball screw pair can be limited.
Description
Technical field
The utility model relates to a kind of ball screw pair.
Background technique
Existing a kind of ball screw pair; Comprise leading screw and be enclosed within the nut on the leading screw that be provided with guide pin bushing between leading screw and the nut, guide pin bushing is provided with a plurality of through holes; The formed Hand of spiral of a plurality of through holes is consistent with leading screw Hand of spiral; All be equipped with in each through hole and stretch into nut inner wall groove and leading screw spiral fluted steel ball, leading screw one end is equipped with position limit pin, and guide pin bushing is provided with the restraining groove that cooperates with position limit pin.The problem that exists is: have only an end of leading screw to be provided with position limit pin, can only at one end realize spacingly, and have only a position limit pin to damage easily, reliability is lower.
The model utility content
The utility model technical problem to be solved is: provide a kind of two ends all can realize ball screw pair spacing and that reliability is high.
The utility model addresses the above problem the technological scheme that is adopted: a kind of ball screw pair; Comprise leading screw and be enclosed within the nut on the leading screw that be provided with guide pin bushing between leading screw and the nut, guide pin bushing is provided with a plurality of through holes; The formed Hand of spiral of a plurality of through holes is consistent with leading screw Hand of spiral; All be equipped with in each through hole and stretch into nut inner wall groove and leading screw spiral fluted steel ball, the two ends of said leading screw all are provided with a position limit pin at least, and the two ends of said guide pin bushing are provided with the restraining groove that cooperates with position limit pin.
As preferably, an end of said leading screw is provided with a position limit pin, and the other end is provided with two position limit pins; End in that position limit pin damages is easily established two position limit pins, improves reliability.
Compared with prior art, the advantage of the utility model is: two ends are equipped with position limit pin, and it is spacing that the ball screw pair two ends all can be realized.
As improvement, the Hand of spiral of said restraining groove is consistent with leading screw Hand of spiral, and restraining groove can be cooperated with position limit pin better, plays position-limiting action.
As another improvement, said nut inner wall groove is a circular groove, makes the nut rotation when spacing, skids.
Description of drawings
Fig. 1 is the structural representation of a kind of ball screw pair of the utility model.
Fig. 2 is the sectional view of nut in a kind of ball screw pair of the utility model.
Fig. 3 is the structural representation of guide pin bushing in a kind of ball screw pair of the utility model.
Fig. 4 is the unfolded drawing of guide pin bushing in a kind of ball screw pair of the utility model.
Among the figure: 1, leading screw, 2, nut, 3, guide pin bushing, 4, position limit pin, 5, steel ball, 6, restraining groove, 7, the nut inner wall groove, 8, the leading screw spiral chute, 9, through hole.
Embodiment
Embodiment to the utility model further describes below in conjunction with accompanying drawing.
Shown in Fig. 1-4; A kind of ball screw pair of the utility model comprises leading screw 1 and is enclosed within the nut 2 on the leading screw, is provided with guide pin bushing 3 between leading screw 1 and the nut 2; Guide pin bushing 3 is provided with a plurality of through holes 9; A plurality of through hole 9 formed Hand of spiral are consistent with leading screw 1 Hand of spiral, and the steel ball 5 that stretches into nut inner wall groove 7 and leading screw spiral chute 8 all is housed in each through hole 9, and an end of said leading screw 1 is provided with a position limit pin 4; The other end is provided with two position limit pins 4, and an end that is provided with two position limit pins is position pin 4 easy impaired ends of actual pot life; The two ends of said guide pin bushing 3 are equipped with the restraining groove 6 that cooperates with position limit pin 4, and the Hand of spiral of restraining groove 6 is consistent with leading screw 1 Hand of spiral.
Said nut inner wall groove 7 is a circular groove.
During use, power drives leading screw 1 and makes nut 2 along leading screw 1 upper and lower moving, and when the restraining groove on the guide pin bushing 36 touched position limit pin 4, nut 2 can only dally, and skidded, and realized spacing; When power drove leading screw 1 counter-rotating, the restraining groove 6 on the guide pin bushing 3 broke away from position limit pin 4, and nut 2 rotates and upper and lower moving with leading screw 1.
Claims (4)
1. ball screw pair; Comprise leading screw (1) and be enclosed within the nut (2) on the leading screw; Be provided with guide pin bushing (3) between leading screw (1) and the nut (2); Guide pin bushing (3) is provided with a plurality of through holes (9); The formed Hand of spiral of a plurality of through holes (9) is consistent with leading screw (1) Hand of spiral, and the steel ball (5) that stretches into nut inner wall groove (7) and leading screw spiral chute (8) all is housed in each through hole (9), and it is characterized in that: the two ends of said leading screw (1) all are provided with a position limit pin (4) at least; The two ends of said guide pin bushing (3) are provided with the restraining groove (6) that cooperates with position limit pin (4).
2. a kind of ball screw pair according to claim 1 is characterized in that: an end of said leading screw (1) is provided with a position limit pin (4), and the other end is provided with two position limit pins (4).
3. a kind of ball screw pair according to claim 1 is characterized in that: the Hand of spiral of said restraining groove (6) is consistent with leading screw (1) Hand of spiral.
4. a kind of ball screw pair according to claim 1 is characterized in that: said nut inner wall groove (7) is a circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200015696U CN202441824U (en) | 2012-01-05 | 2012-01-05 | Ball screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200015696U CN202441824U (en) | 2012-01-05 | 2012-01-05 | Ball screw pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441824U true CN202441824U (en) | 2012-09-19 |
Family
ID=46823276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200015696U Expired - Lifetime CN202441824U (en) | 2012-01-05 | 2012-01-05 | Ball screw pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441824U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121343A (en) * | 2014-08-14 | 2014-10-29 | 瀚寅(苏州)新材料科技有限公司 | Ball screw transmission device with fixed length limiting function |
| CN109458437A (en) * | 2018-12-24 | 2019-03-12 | 慈兴集团有限公司 | It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block |
-
2012
- 2012-01-05 CN CN2012200015696U patent/CN202441824U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121343A (en) * | 2014-08-14 | 2014-10-29 | 瀚寅(苏州)新材料科技有限公司 | Ball screw transmission device with fixed length limiting function |
| CN109458437A (en) * | 2018-12-24 | 2019-03-12 | 慈兴集团有限公司 | It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |