CN2628808Y - Screw auxiliaries capable of automatic spacing protection - Google Patents
Screw auxiliaries capable of automatic spacing protection Download PDFInfo
- Publication number
- CN2628808Y CN2628808Y CN 03234481 CN03234481U CN2628808Y CN 2628808 Y CN2628808 Y CN 2628808Y CN 03234481 CN03234481 CN 03234481 CN 03234481 U CN03234481 U CN 03234481U CN 2628808 Y CN2628808 Y CN 2628808Y
- Authority
- CN
- China
- Prior art keywords
- nut
- screw mandrel
- automatic spacing
- screw
- inner nut
- 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 - Fee Related
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Abstract
The utility model discloses a automatic spacing protection screw mandrel, including nuts and a screw mandrel. The nuts is divided into the internal nut and the external nut sleeved outside of the internal nuts; the internal nut with the spiral groove is sleeved on the screw mandrel with a stop pin at one end; end surface bearings are arranged at the both ends of the interface of the internal and external nuts; a transverse bearing is arranged at the middle of the interface. The utility model is simply structured with low cost, strong reliability and power transmission, which can carry on the automatic spacing protection to each kind of screw mandrel. The technology can be applied widely in the power transmission, the displacement transmission as well as the power transmission which is unsuitable to install the limits switch.
Description
Technical field the utility model relates to a kind of screw pair, but the screw pair of particularly a kind of automatic spacing protection.
Background technique is on the work-yard, and people generally adopt electronic T type screw pair to come all kinds of weights of lifting, and after electronic T type screw pair moved to limit position, needing could position limitation protection with limit switch or automatic spacing device.In order to improve the spacing reliability of screw pair; screw pair has developed into rectangle screw pair, trapezoidal screw pair and automatic spacing ball wire bar pair etc. by limit switch at present; but above-mentioned screw pair does not reach the automatic spacing protective function so far as yet; and existing automatic spacing ball screw auxiliary structure itself remains in certain defective; wall as the ball maintainance set is thin then yielding; the through hole of ball protecting jacket must be accurately corresponding with the spiral chute of the circular trough of nut and screw mandrel in addition; just can go slick, this has just increased the difficulty and the cost of production of manufacturing technology.
Summary of the invention is in order to overcome the deficiencies in the prior art part, but the utility model provide a kind of simple in structure, with low cost, transferring power is big, the screw pair of easily manufactured, reliable performance, automatic spacing protection that any spacing property is strong.
But the screw pair of automatic spacing protection of the present utility model; comprise nut and screw mandrel; described nut divides inner nut and the outer nut that is enclosed within on the inner nut; having the spiral fluted inner nut overlaps again on the screw mandrel that at one end has fixing pin; two-end part at inner nut and outer nut surface of contact is provided with the end face bearing, then is provided with radial bearing in the intermediate portion of surface of contact.
Owing to adopt technique scheme; but the beneficial effect of the screw pair of the automatic spacing that the utility model provides protection is: simple in structure, with low cost, good reliability, transferring power are big; can carry out automatic spacing protection, the power transmission that this technology is widely used in power transmission, displacement transmission and is not easy to install limit switch to all kinds of screw pairs.
The utility model is described in further detail below in conjunction with accompanying drawing for description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 1 inner nut, 2 outer nuts, 3 inner nut spiral chutes, 4 fixing pins, 5 screw mandrels, 6 surface of contact, 7 end face bearings, 8 radial bearings, 9 threads, 10 screw mandrel spiral chutes.
Embodiment as shown in drawings; but the screw pair of automatic spacing protection of the present utility model; comprise nut and screw mandrel; described nut divides inner nut 1 and the outer nut 2 that is enclosed within on the inner nut 1; the inner nut 1 that has spiral chute 3 overlaps on the screw mandrel 5 that at one end has fixing pin 4 again; two-end part at inner nut 1 and outer nut 2 surface of contact 6 is provided with end face bearing 7; intermediate portion at surface of contact 6 then is provided with radial bearing 8; thread 9 on the screw mandrel 5 can be any profile of tooth; as rectangle; trapezoidal; zigzag fashion; arc; single head shape or bull shape etc.; end face bearing 7 and radial bearing 8 can be rolling bearings; sliding bearing; the various structures of pad or direct face or line contact, fixing pin 4 places screw mandrel 5.Two end faces of described inner nut 1 can have single or multiple restraining grooves 10, can be spiral rolling structure or spiral sliding motion structure between inner nut 1 and the screw mandrel 5.
Structural feature of the present utility model is, can be that spiral rolls and cooperates between inner nut 1 and the screw mandrel 5, also can be spiral slide movingly.When inner nut 1 and screw mandrel are that spiral rolls when cooperating, which kind of profile of tooth the thread 9 on the screw mandrel 5 is, on the inner nut 1 profile of tooth with matching must be arranged, as rectangle, trapezoidal, zigzag fashion, circular arc etc.Working principle of the present utility model is: when screw mandrel 5 when the spiral chute 3 of inner nut 1 rotatablely moves; inner nut 1 moves up or down and drives outer nut 2 and carries out straight-line displacement; when inner nut 1 mobile reaches capacity the position; restraining groove 10 on the inner nut meets with the fixing pin 4 that is contained on the screw mandrel 5; inner nut 1 stops operating; outer nut 2 begins idle running with inner nut 1, outer nut 2 displacement no longer forward, thus reach the purpose that automatic spacing is protected screw pair.
Claims (6)
1. but the screw pair of automatic spacing protection; comprise nut and screw mandrel; it is characterized in that; described nut divides inner nut (1) and is enclosed within outer nut (2) on the inner nut (1); the inner nut (1) that has spiral chute (3) overlaps again on the screw mandrel (5) that at one end has fixing pin (4); two-end part at inner nut (1) and outer nut (2) surface of contact (6) is provided with end face bearing (7), then is provided with radial bearing (8) in the intermediate portion of surface of contact (6).
2. but the screw pair of automatic spacing according to claim 1 protection is characterized in that the thread (9) on the described screw mandrel (5) can be any profile of tooth, as rectangle, trapezoidal, zigzag fashion, arc, single head shape or bull shape etc.
3. but the screw pair of automatic spacing protection according to claim 1 is characterized in that, described end face bearing (7) can be the various structures that rolling bearing, sliding bearing, pad or direct face or line contact with radial bearing (8).
4. but the screw pair of automatic spacing protection according to claim 1 is characterized in that described fixing pin (4) places screw mandrel (5).
5. but the screw pair of automatic spacing protection according to claim 1 is characterized in that two end faces of described inner nut (1) can have single or multiple restraining grooves (10).
6. but the screw pair of automatic spacing protection according to claim 1 is characterized in that, can be spiral rolling structure or spiral sliding motion structure between described inner nut (1) and the screw mandrel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234481 CN2628808Y (en) | 2003-05-19 | 2003-05-19 | Screw auxiliaries capable of automatic spacing protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234481 CN2628808Y (en) | 2003-05-19 | 2003-05-19 | Screw auxiliaries capable of automatic spacing protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2628808Y true CN2628808Y (en) | 2004-07-28 |
Family
ID=34249215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234481 Expired - Fee Related CN2628808Y (en) | 2003-05-19 | 2003-05-19 | Screw auxiliaries capable of automatic spacing protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2628808Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526682C (en) * | 2004-12-09 | 2009-08-12 | Ims传动装置有限公司 | Supporting structure for feed screw nut |
| CN103462699A (en) * | 2013-09-23 | 2013-12-25 | 江苏美伦影像系统有限公司 | Medical object carrying bed |
| CN105774394A (en) * | 2016-04-08 | 2016-07-20 | 重庆大学 | Mobile robot with deformation wheels |
| CN106523635A (en) * | 2016-12-30 | 2017-03-22 | 亿嘉和科技股份有限公司 | Spiral telescopic device |
| CN107429809A (en) * | 2015-02-02 | 2017-12-01 | Ntn株式会社 | Electric actuator |
| CN107575546A (en) * | 2017-09-28 | 2018-01-12 | 南通冒氏智能装备有限公司 | It is a kind of can automatic spacing protection screw pair |
| CN111636755A (en) * | 2020-06-09 | 2020-09-08 | 温州安荷桥科技有限公司 | Wind-resistant reinforcing nail |
-
2003
- 2003-05-19 CN CN 03234481 patent/CN2628808Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526682C (en) * | 2004-12-09 | 2009-08-12 | Ims传动装置有限公司 | Supporting structure for feed screw nut |
| CN103462699A (en) * | 2013-09-23 | 2013-12-25 | 江苏美伦影像系统有限公司 | Medical object carrying bed |
| CN103462699B (en) * | 2013-09-23 | 2015-10-21 | 江苏美伦影像系统有限公司 | A kind of medical loading bed |
| CN107429809A (en) * | 2015-02-02 | 2017-12-01 | Ntn株式会社 | Electric actuator |
| CN105774394A (en) * | 2016-04-08 | 2016-07-20 | 重庆大学 | Mobile robot with deformation wheels |
| CN106523635A (en) * | 2016-12-30 | 2017-03-22 | 亿嘉和科技股份有限公司 | Spiral telescopic device |
| CN107575546A (en) * | 2017-09-28 | 2018-01-12 | 南通冒氏智能装备有限公司 | It is a kind of can automatic spacing protection screw pair |
| CN111636755A (en) * | 2020-06-09 | 2020-09-08 | 温州安荷桥科技有限公司 | Wind-resistant reinforcing nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |