CN202228619U - Steel ball reversing mechanism for ball screw assembly - Google Patents
Steel ball reversing mechanism for ball screw assembly Download PDFInfo
- Publication number
- CN202228619U CN202228619U CN2011203738230U CN201120373823U CN202228619U CN 202228619 U CN202228619 U CN 202228619U CN 2011203738230 U CN2011203738230 U CN 2011203738230U CN 201120373823 U CN201120373823 U CN 201120373823U CN 202228619 U CN202228619 U CN 202228619U
- Authority
- CN
- China
- Prior art keywords
- ball
- ball nut
- nut
- back device
- reverser
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000004087 circulation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- 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
- F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls
- F16H25/2223—Cross over deflectors between adjacent thread turns, e.g. S-form deflectors connecting neighbouring threads
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The utility model discloses a steel ball reversing mechanism for a ball screw assembly and belongs to the field of manufacturing of the ball screw assembly. The steel ball reversing mechanism comprises a ball nut, a reverser and elastic collars for holes, wherein the reverser is an integral reversing block; a spiral rolling channel which is matched with the ball nut is arranged on the reverser; a straight groove is formed on the axial direction on the inner wall of the ball nut; clamping spring grooves are formed at two ends of the ball nut; the reverser is embedded into the ball nut through the straight groove on the axial direction of the ball nut and matched with the ball nut, and a closed loop which consists of the ball nut and the reverser is formed; and the two ends of the reverser are fixed by the elastic collars for the holes in the clamping spring grooves. By integrally designing the steel ball reversing mechanism, the elastic collars for the holes occupy small spaces in the axial direction, the length of a nut can be correspondingly reduced, and the ball screw assembly is compact in structure, and easy and convenient to install, and has a small occupation space and a good hand feeling, so that an effect of improving the carrying capacity is achieved.
Description
Technical field
The utility model relates to a kind of ball screw pair, specially refers to a kind of steel ball back mechanism that is used for ball screw pair.
Background technique
Precision mechanical system and equipment, precision machine tool is measured lathe, semiconductor processing equipment, fields such as biology and pharmacy, miniature leading screw is used widely.Compact structure, simple installation, can bear the designing requirement that bigger thrust load is miniature lead screw pair.When the nut structure of big-and-middle-sized ball screw pair is used for miniature leading screw,, still all undesirable from economic and practical angle no matter from the rationality of structure.Therefore design is applicable to that the steel ball back mechanism of miniature lead screw pair is most important for whole miniature screw structure.
Traditional steel ball back mechanism, what its back device adopted is circular back device or oval back device.The two something in common is that a back device is responsible for the circulation of the steel ball of a circle.Nut needs a few circle circulations, so just need on ball nut, beat the back device hole of respective amount.The back device of respective amount is installed during assembling.And because these two kinds traditional back devices undersized (especially for miniature leading screw); The raceway curve is too short in the back device; Can't form with ball nut raceway curve after the installation and seamlessly transit, each back device is during corresponding to nut, and the stream ball mouth at two ends all needs hand grinding on the nut; The lead screw pair specification is more little, and its assembly precision is not easy to guarantee more.Simultaneously owing to need on ball nut, beat the back device hole of respective amount, the designing requirement that causes the thrust load of whole ball nut not reach miniature lead screw pair.
The means of fixation of the common usefulness of back device of interior in addition circulating ball lead screw pair is that the lifting of stainless steel sunk screw is fixing.The narrow limitation of this means of fixation is must leave and take on the ball nut position of lifting screw.Ball nut length is shorter when requiring, and when bearing capacity does not allow to reduce (promptly must not reduce the ball-recirculation number of turns), promptly screw can not be set on ball nut, to reduce the load-carrying properties of whole steel ball back mechanism.
Summary of the invention
1. the model utility technical problem that will solve
All need on ball nut, to beat the back device hole of respective amount to traditional back device, and screw is set on the ball nut, reduce the problem of the load-carrying properties of whole steel ball back mechanism; The utility model provides a kind of steel ball back mechanism that is used for ball screw pair; Through straight trough and draw-in groove in circlip for hole and the ball nut, the back device is installed in the ball nut inwall, install simple; The lead screw pair good hand touch, the load-carrying properties of whole steel ball back mechanism are good.
2. technological scheme
A kind of steel ball back mechanism that is used for ball screw pair comprises ball nut and back device, also comprises circlip for hole; The back device is the back piece of an integral body; The spiral rolling track that matches with ball nut is set on the back device; Have straight trough at the ball nut inwall on axially, the two end part of ball nut have the jump ring groove, and the back device embeds in the ball nut through the straight trough of ball nut on axially and matches with ball nut; The closed-loop path that formation is made up of ball nut and back device, the two ends of back device are fixed through the circlip for hole that is assemblied in the jump ring groove.Described circlip for hole is C type circlip for hole or U type circlip for hole.
3. beneficial effect
(1) through to the global design of steel ball back mechanism, circlip for hole is axially taking up room for a short time, and the length dimension of nut can correspondingly shorten, thereby reaches the effect that improves bearing capacity;
(2) through to the global design of steel ball back mechanism, make ball screw pair compact structure, simple installation, little lead screw pair good hand touch takes up room;
(3) from the machining angle of ball nut and back device, reduced manufacturing procedure, more given simple during the assembling of back device.
Description of drawings
Fig. 1 is the steel ball back mechanism structure schematic representation that is used for ball screw pair;
Fig. 2 is the steel ball back mechanism left view that is used for ball screw pair;
Fig. 3 is ball nut and back device assembling perspective view;
Fig. 4 is a back device perspective view.
Be labeled as among the figure: 1 back device, 2 ball nuts, 3 jump ring grooves, 4 circlip for holes.
Embodiment
In conjunction with shown in Figure 1, be used for the steel ball back mechanism of ball screw pair, comprise ball nut 2 and back device 1, also comprise circlip for hole 4; Back device 1 is the back piece of an integral body; The spiral rolling track that matches with ball nut 2 is set on the back device 1; Have straight trough at ball nut 2 inwalls on axially, the two end part of ball nut 2 have jump ring groove 3, and back device 1 embeds in the ball nut 2 through the straight trough of ball nut 2 on axially and matches with ball nut 2; The closed-loop path that formation is made up of ball nut 2 and back device 1, the two ends of back device 1 are fixing through the circlip for hole 4 that is assemblied in the jump ring groove 3.
In conjunction with Fig. 2,3 and 4; The steel ball back mechanism that is used for ball screw pair; Comprise the threads engaged on ball nut 2, back device 1 ball nut 2 and the ball screw, steel ball is arranged in the spiral rolling track of ball nut 2 and ball screw, the as a whole back piece of back device 1 design; The spiral rolling track that matches with ball nut 2 is set on the back device 1; On ball nut 2 inwalls are axial, have straight trough, back device 1 perfectly straight groove matches with ball nut 2, forms the closed-loop path that is made up of ball nut 2 and back device 1.The two end part of ball nut 2 have jump ring groove 3; The two ends of back device 1 are fixing through the circlip for hole 4 that is assemblied in the jump ring groove 3; Its purpose is fixedly back device, prevents that the back device from producing play at axial and circumferential, and wherein circlip for hole is a C type circlip for hole.All back passages embody on a back device 1; Steel ball is through the spiral rolling track entering back device 1 of 2 of ball screw and ball nuts; Steel ball has striden across the crest of ball nut 2 in back device 1 passage, get into the spiral rolling track of 2 of ball screw and ball nuts once more.Go round and begin again, realize the relative movement between leading screw and nut.All circulation number of turns all embody on a back device 1.The circulation of a corresponding circle steel ball of spiral rolling track on the back device 1.
The steel ball back mechanism that is used for ball screw pair; The as a whole back piece of back device 1 design; The spiral rolling track that matches with ball nut 2 is set on the back device 1; Ball nut 2 inwalls have straight trough in the axial direction, and back device 1 perfectly straight groove matches with ball nut 2, form the closed-loop path that is made up of ball nut 2 and back device 1.The two end part of ball nut 2 have jump ring groove 3; The two ends of back device 1 are fixing through the circlip for hole 4 that is assemblied in the jump ring groove 3; Its purpose is fixedly back device, prevents that the back device from producing play at axial and circumferential, and wherein circlip for hole is a U type circlip for hole.
Claims (2)
1. a steel ball back mechanism that is used for ball screw pair comprises ball nut and back device, it is characterized in that also comprising circlip for hole; The back device is the back piece of an integral body; The spiral rolling track that matches with ball nut is set on the back device; Have straight trough at the ball nut inwall on axially, the two end part of ball nut have the jump ring groove, and the back device embeds in the ball nut through the straight trough of ball nut on axially and matches with ball nut; The closed-loop path that formation is made up of ball nut and back device, the two ends of back device are fixed through the circlip for hole that is assemblied in the jump ring groove.
2. according to the said steel ball back mechanism that is used for ball screw pair of claim 1, it is characterized in that described circlip for hole is C type circlip for hole or U type circlip for hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203738230U CN202228619U (en) | 2011-09-30 | 2011-09-30 | Steel ball reversing mechanism for ball screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203738230U CN202228619U (en) | 2011-09-30 | 2011-09-30 | Steel ball reversing mechanism for ball screw assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228619U true CN202228619U (en) | 2012-05-23 |
Family
ID=46079206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203738230U Expired - Lifetime CN202228619U (en) | 2011-09-30 | 2011-09-30 | Steel ball reversing mechanism for ball screw assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228619U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547922A (en) * | 2018-03-30 | 2018-09-18 | 山东理工精密机械有限公司 | The processing technology of the hollow lifting ball screw assembly,s of AGV and its feed screw nut |
| CN109131534A (en) * | 2018-10-11 | 2019-01-04 | 杭州世宝汽车方向机有限公司 | A recirculating ball steering gear |
| CN109910998A (en) * | 2019-04-17 | 2019-06-21 | 上海格尔汽车科技发展有限公司 | A kind of automobile electric steering gear nut |
| CN110822048A (en) * | 2019-12-04 | 2020-02-21 | 江苏启尖丝杠制造有限公司 | Insertion piece floating circulation type high-speed ball screw pair |
-
2011
- 2011-09-30 CN CN2011203738230U patent/CN202228619U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547922A (en) * | 2018-03-30 | 2018-09-18 | 山东理工精密机械有限公司 | The processing technology of the hollow lifting ball screw assembly,s of AGV and its feed screw nut |
| CN108547922B (en) * | 2018-03-30 | 2024-04-09 | 山东理工精密机械有限公司 | AGV hollow lifting ball screw pair and processing technology of screw nut thereof |
| CN109131534A (en) * | 2018-10-11 | 2019-01-04 | 杭州世宝汽车方向机有限公司 | A recirculating ball steering gear |
| CN109910998A (en) * | 2019-04-17 | 2019-06-21 | 上海格尔汽车科技发展有限公司 | A kind of automobile electric steering gear nut |
| CN110822048A (en) * | 2019-12-04 | 2020-02-21 | 江苏启尖丝杠制造有限公司 | Insertion piece floating circulation type high-speed ball screw pair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151204 Address after: Taicang City, Jiangsu province science and Technology Park 215400 Jianxiong Road No. 20 Patentee after: China run Hai Precision Technology Co., Ltd. Address before: 210039, No. 8, long Tibet Road, Yuhua Economic Development Zone, Nanjing, Jiangsu Patentee before: Excellent Nie Fu (Nanjing) Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |