CN101749325A - Synchronous connector with ball bearings and straight-line transmission device utilizing same - Google Patents
Synchronous connector with ball bearings and straight-line transmission device utilizing same Download PDFInfo
- Publication number
- CN101749325A CN101749325A CN200810184999A CN200810184999A CN101749325A CN 101749325 A CN101749325 A CN 101749325A CN 200810184999 A CN200810184999 A CN 200810184999A CN 200810184999 A CN200810184999 A CN 200810184999A CN 101749325 A CN101749325 A CN 101749325A
- Authority
- CN
- China
- Prior art keywords
- ball
- pawl
- keep
- coupling piece
- holding part
- 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.)
- Granted
Links
Images
Landscapes
- Railway Tracks (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a synchronous connector with ball bearings and a straight-line transmission device utilizing the same, which comprises a plurality of ball bearings arranged at intervals in series and a connector; the connector is provided with two connection parts and spacing parts, wherein the connection parts are arranged at the two outer sides of the ball bearings, and the spacing parts are formed between every two adjacent ball bearings, are in bridge joint with the two connection parts and have the function of absorbing the impact force of the ball bearings. In addition, the connector is provided with a retention part between the connection parts and the ball bearings, wherein one end of the retention part is fixed at the connection parts, and the other end of the retention part is provided with a claw face capable of retaining the ball bearings. Moreover, the thickness of the retention part is greater than the thickness of the connection parts. Thus, the impact force of the ball bearings to the retention part can be lowered to a lowest extent, the situation of the material aging of the retention part can be prolonged so as to maintain a favorable retention effect for a long time, the combination relationship between the connector and the ball bearings is ensured, and the generation of the situation that the ball bearings are randomly disengaged can be avoided.
Description
Technical field
The present invention discloses a kind of structure of ball coupling piece, is meant a kind of ball coupling piece that is applied in the linear transmission especially.
Background technique
The ball coupling piece that case is disclosed before US6070479, US5988883, US6830378, the US6575630 patent, its concrete structure just as shown in Figure 1, this ball coupling piece by plural number at interval the ball 8 and a coupling piece 80 of arranged in series form, this coupling piece 80 has two linking departments 81,82, the spacer portion 83 that is formed at 8 on adjacent in twos ball and bridge joint two linking departments 81,82 that are located at these 8 liang of outsides of ball, be formed at spacer portion 83 and can keep the maintenance pawl 84 of ball 8.
Make a general survey of the synchronous coupling piece of this tradition ball, it has following shortcoming:
1. when this ball coupling piece moves in linear transmission, the active force of ball 8 is towards spacer portion 83, so be positioned at the impact force that the maintenance pawl 84 on the spacer portion 83 can constantly bear ball 8 for a long time, quicken material ageing, cause keeping pawl 84 easy fatigue agings and lose required maintenance effect, and then have influence on precision and the smoothness of linear transmission in operation.
2. be not provided with aforementioned maintenance pawl 84 between ball 8 and two linking departments 8182, only restrain ball 8, the maintenance poor effect of ball 8 with linking department 8182 inboards.
Case then discloses other and plants the ball coupling piece before the US6364086 patent, see also Fig. 2, its coupling piece includes joint 90, holding part 91,92,93,94, axis and joint 90 that this holding part 91,92,93,94 is located at the serial ball respectively intersect on the direction of miter angle, and this holding part 91,92,93,94 outwards convexes with the maintenance pawl, in order to keep ball.This holding part 91,92,93,94 still can constantly be born the impact force that ball 8 produces because of motion, though its force-bearing situation is less than Fig. 1, under long term, its holding part 91,92,93,94 still has the problem of fatigue aging.
By above explanation as can be known, though the existing synchronous coupling piece of ball has the research and development of carrying out that many relevant manufacturers do one's utmost, there do not have preferable structure that the fatigue aging problem of holding part is reduced to so far yet to be minimum, and obviously it still remains relevant dealer and keeps punching.
Summary of the invention
Main purpose one of the present invention is to provide a kind of ball synchronous coupling piece, and it is minimum that the suffered impact force of ball is reduced to, and improves the precision and the smoothness of ball operation.
Another object of the present invention is to provide a kind of linear transmission that uses the synchronous coupling piece of this ball.
For reaching above-mentioned purpose, the present invention adopts following technological scheme:
The synchronous coupling piece of a kind of ball, its ball and coupling piece by plural number interval arranged in series is formed, and this coupling piece includes at least: two linking departments, it is located at this ball two opposite external side; Spacer portion, it is located between adjacent in twos ball, and bridge joint two linking departments; And holding part, it is located between linking department and the ball, and makes holding part one end be fixed in the inboard of linking department, and end then has the pawl face that keeps ball in addition, and the thickness of this holding part is greater than the thickness of linking department.
Described spacer portion and adjacent ball butt make it to absorb the impact force of ball when running.
Described holding part is made up of last maintenance pawl and the following pawl that keeps.
Two relative go up keep pawl open-topped distance less than ball diameter, bottom end opening distance greater than ball diameter, and be a face of gradually opening downwards, make the cambered surface, the Lower Half formation bottom knockout face that keep the pawl first half to form keeping ball according to this; Under keep pawl and last maintenance pawl to stagger, and make two relative following maintenance pawl bottom end opening distances less than ball diameter, open-topped distance greater than ball diameter, and be a face of upwards gradually opening, make down according to this to keep the formation of pawl Lower Half can keep the cambered surface of ball, the first half to form stripping surface.
Be provided with the reinforcement part in spacer portion, this reinforcement part is a sphere, in order to strengthen the structural of this spacer portion.
A kind of linear transmission that uses the synchronous coupling piece of above-mentioned ball, it includes at least: a slide rail; One slide block rides in slide rail; Two end caps, correspondence are mounted on the two ends of slide block, and form a backflow road between slide rail, slide block, end cap; The synchronous coupling piece of ball, its ball and coupling piece by plural number interval arranged in series is formed, and makes ball operate in the backflow road; This coupling piece have be located at respectively this ball two relatively the outside linking department, be located between adjacent in twos ball and the spacer portion of bridge joint two linking departments, and between linking department and ball, be provided with holding part, this holding part one end is fixed in the inboard of linking department, end then has for the pawl face that keeps ball in addition, and the thickness of this holding part is greater than the thickness of linking department.
Described spacer portion and adjacent ball butt make it directly to absorb the impact force of ball when running.
Holding part is made up of last maintenance pawl and the following pawl that keeps.
Two relative go up keep pawl open-topped distance less than ball diameter, bottom end opening distance greater than ball diameter, and be a face of gradually opening downwards, make the cambered surface, the Lower Half formation bottom knockout face that keep the pawl first half to form keeping ball according to this; Under keep pawl and last maintenance pawl to stagger, and make two relative following maintenance pawl bottom end opening distances less than ball diameter, open-topped distance greater than ball diameter, and be a face of upwards gradually opening, make down according to this to keep the formation of pawl Lower Half can keep the cambered surface of ball, the first half to form stripping surface.
Be provided with the reinforcement part in spacer portion, in order to strengthen the structural of this spacer portion.
After adopting such scheme, the synchronous coupling piece of ball of the present invention mainly is holding part to be located between linking department and the ball, these are located at technology between linking department and ball with holding part, and cooperating the spacer portion between adjacent in twos ball to have under the effect that absorbs the ball impact force, the impact force that makes holding part of the present invention be subjected to ball is reduced to minimum, thereby can prolong this holding part material aging situation, keeping good maintenance effect for a long time, and can guarantee to use precision and the smoothness of linear transmission when operation of the synchronous coupling piece of this ball.
For making your juror can further understand structure of the present invention, feature and other purpose attachedly now elaborate with preferred embodiment and accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of first kind of synchronous coupling piece of traditional ball;
Fig. 2 is the structural representation of second kind of synchronous coupling piece of traditional ball;
Fig. 3 is a combination schematic appearance of the present invention;
Fig. 4 is the embodiments of the invention schematic representation;
Fig. 5,5a are the generalized section of the embodiment of the invention;
Fig. 6 is another generalized section of the embodiment of the invention;
Fig. 7 is the schematic perspective view of coupling piece of the present invention;
Fig. 8 A is the schematic top plan view of coupling piece of the present invention;
Fig. 8 B is the elevational schematic view of coupling piece of the present invention;
Fig. 8 C is the generalized section of coupling piece of the present invention;
Fig. 9 is the schematic representation of second embodiment of the invention;
Figure 10 is the schematic representation of third embodiment of the invention.
The primary component symbol description
Synchronous coupling piece 2 linear transmissions of 1 ball
3 slide rails, 4 slide blocks, 5 end caps
6 backflow roads, 10 ball D ball diameters
20 coupling pieces, 21,22 linking departments, 210,220 inner side surfaces
T1 linking department thickness 23 spacer portion 231,232 reinforcement parts
Keep pawl 25a cambered surface on 24 holding parts 25
25b bottom knockout face keeps pawl 26a cambered surface for 26 times
The last stripping surface T2 of 26b holding part thickness L1, L2 extended distance
8 balls, 80 coupling pieces, 81,82 linking departments
83 spacer portion 84 keep pawl 90 joints
91,92,93,94 holding parts
Embodiment
See also Fig. 3 to shown in Figure 6, form at interval by the ball 10 and a coupling piece 20 of arranged in series by plural number for the synchronous coupling piece 1 of ball of the present invention;
The synchronous coupling piece of this ball 1 is configurable in linear transmission 2, this linear transmission 2 comprises a slide rail 3, and rides on end cap 5 compositions that are mounted on slide block 4 two ends in the slide block 4, two of slide rail 3, is provided with the backflow road 6 for ball 10 runnings between this slide rail 3, slide block 4 and the end cap 5.
See also shown in Fig. 3,7,8, coupling piece 20 of the present invention includes:
Two linking departments 21,22, what be strip shape body is installed in 10 liang of opposite external side of these balls;
A plurality of spacer portion 23 are located between the adjacent in twos ball 10, and its two ends extension bridge joint two linking departments 21,22, and this spacer portion 23 and adjacent ball 10 butts make it directly to absorb the impact force of ball 10 when running; And
Holding part 24, be located between linking department 21,22 and the ball 10, these holding part 24 1 ends are fixed in linking department 21,22 inner side surfaces 210,220, end then has the pawl face that can keep ball 10 in addition, and the thickness T up and down 2 of this holding part 24 is greater than the thickness T up and down 1 of linking department 21,22; And this holding part 24 is made up of last maintenance pawl 25 and the following pawl 26 that keeps, make two stand far apart facing each other go up to keep pawl 25 open-topped distance L 1 less than ball 10 diameter D, bottom end opening distance greater than ball 10 diameter D, and be a curved surface of gradually opening downwards, the cambered surface 25a, the Lower Half that keep the formation of pawl 25 first halves can keep ball 10 are formed can supply the bottom knockout face 25b of the ejection formation demoulding smoothly; Under keep pawl 26 to be located at keeping pawl 25 both sides, make both be the setting of staggering mutually up and down, and make the two following maintenance pawl 26 bottom end opening distance L 2 of standing far apart facing each other less than ball 10 diameter D, open-topped distance greater than ball 10 diameter D, and being a curved surface of upwards gradually opening, the cambered surface 26a, the first half that keep the formation of pawl 26 Lower Halves can keep ball 10 are formed can be for the last stripping surface 26b of the ejection formation demoulding.
Learn by said structure, the present invention is located at 21,22 and the technology of 10 on ball by this holding part 24, under the impact force when the spacer portion 23 that cooperates 10 on adjacent in twos ball can directly absorb ball 10 in running, make going up of holding part 24 of the present invention keep pawl 25 and the impact force that keeps pawl 26 to be subjected to ball 10 down to reduce to minimum, thereby can prolong maintenance pawl 25 and the following pawl 26 material aging situations that keep on this, to keep good maintenance effect for a long time, in order to do guaranteeing precision and the smoothness of linear transmission in operation.
In addition, coupling piece 20 of the present invention is to utilize the plastics ejection formation, holding part 24 and the upper and lower maintenance pawl 25,26 that is crisscross arranged utilize general ejection forming technique to produce in a large number, and its prouctiveness is good than known techniques, so the present invention has industry applications.
See also Fig. 9, it further specifies the present invention must convex with bigger spherical reinforcement part 231, cross section in spacer portion 23 symmetries, this reinforcement part 231 can be connected to two adjacent balls 10 simultaneously, makes it to absorb the impact force of ball 10 when operating with bigger area; As for Figure 10 then be the explanation this valve every portion's 23 symmetries in the last rectangle reinforcement part 232 that has, make it to strengthen the structural of this spacer portion 23, its function and Fig. 9 equivalence are lookinged at it from this point of view, the change in shape of this spacer portion 23 of any reinforcement all belongs to equivalence of the present invention.
In sum, be the height invention on the technical concept, and overall structure also belong to novelty, should accord with the application for a patent for invention important document, file an application in the whence in accordance with the law.The above only is a preferred embodiment of the present invention, when can not with qualification scope of the invention process, promptly the equalization of being done according to the present patent application claim generally changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (10)
1. synchronous coupling piece of ball, ball and a coupling piece of arranged in series are formed at interval by plural number for they; This coupling piece includes at least:
Two linking departments, it is located at this ball two opposite external side;
Spacer portion, it is located between adjacent in twos ball, and bridge joint two linking departments; And
Holding part, it is located between linking department and the ball, and makes holding part one end be fixed in the inboard of linking department, and end then has the pawl face that keeps ball in addition, and the thickness of this holding part is greater than the thickness of linking department.
2. the synchronous coupling piece of ball as claimed in claim 1 is characterized in that: described spacer portion and adjacent ball butt make it to absorb the impact force of ball when running.
3. the synchronous coupling piece of ball as claimed in claim 1 or 2 is characterized in that: described holding part is made up of last maintenance pawl and the following pawl that keeps.
4. the synchronous coupling piece of ball as claimed in claim 3, it is characterized in that: two relative go up keep pawl open-topped distance less than ball diameter, bottom end opening distance greater than ball diameter, and be a face of gradually opening downwards, make the cambered surface, the Lower Half that keep the formation of the pawl first half can keep ball form bottom knockout face according to this; Under keep pawl and last maintenance pawl to stagger, and make two relative following maintenance pawl bottom end opening distances less than ball diameter, open-topped distance greater than ball diameter, and be a face of upwards gradually opening, make down according to this to keep the formation of pawl Lower Half can keep the cambered surface of ball, the first half to form stripping surface.
5. the synchronous coupling piece of ball as claimed in claim 1 or 2 is characterized in that: be provided with the reinforcement part in spacer portion, this reinforcement part is a sphere, in order to strengthen the structural of this spacer portion.
One kind the utilization above-mentioned ball coupling piece linear transmission, it is characterized in that: include at least:
One slide rail;
One slide block rides in slide rail;
Two end caps, correspondence are mounted on the two ends of slide block, and form a backflow road between slide rail, slide block, end cap;
The synchronous coupling piece of ball, its ball and coupling piece by plural number interval arranged in series is formed, and makes ball operate in the backflow road; This coupling piece have be located at respectively this ball two relatively the outside linking department, be located between adjacent in twos ball and the spacer portion of bridge joint two linking departments, and between linking department and ball, be provided with holding part, this holding part one end is fixed in the inboard of linking department, end then has for the pawl face that keeps ball in addition, and the thickness of this holding part is greater than the thickness of linking department.
7. linear transmission as claimed in claim 6 is characterized in that: described spacer portion and adjacent ball butt make it directly to absorb the impact force of ball when running.
8. as claim 6 or 7 described linear transmissions, it is characterized in that: holding part is made up of last maintenance pawl and the following pawl that keeps.
9. linear transmission as claimed in claim 8, it is characterized in that: two relative go up keep pawl open-topped distance less than ball diameter, bottom end opening distance greater than ball diameter, and be a face of gradually opening downwards, make the cambered surface, the Lower Half that keep the formation of the pawl first half can keep ball form bottom knockout face according to this; Under keep pawl and last maintenance pawl to stagger, and make two relative following maintenance pawl bottom end opening distances less than ball diameter, open-topped distance greater than ball diameter, and be a face of upwards gradually opening, make down according to this to keep the formation of pawl Lower Half can keep the cambered surface of ball, the first half to form stripping surface.
10. as claim 6 or 7 described linear transmissions, it is characterized in that: be provided with the reinforcement part in spacer portion, in order to strengthen the structural of this spacer portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101849994A CN101749325B (en) | 2008-12-17 | 2008-12-17 | Synchronous connector with ball bearings and straight-line transmission device utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101849994A CN101749325B (en) | 2008-12-17 | 2008-12-17 | Synchronous connector with ball bearings and straight-line transmission device utilizing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749325A true CN101749325A (en) | 2010-06-23 |
| CN101749325B CN101749325B (en) | 2012-07-25 |
Family
ID=42476789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101849994A Expired - Fee Related CN101749325B (en) | 2008-12-17 | 2008-12-17 | Synchronous connector with ball bearings and straight-line transmission device utilizing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749325B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141082A (en) * | 2010-11-18 | 2011-08-03 | 山东博特精工股份有限公司 | Roller linear guide rail pair |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432460C (en) * | 2005-09-29 | 2008-11-12 | 上银科技股份有限公司 | Sliding-block structure of linear roller sliding rail |
-
2008
- 2008-12-17 CN CN2008101849994A patent/CN101749325B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141082A (en) * | 2010-11-18 | 2011-08-03 | 山东博特精工股份有限公司 | Roller linear guide rail pair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101749325B (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101749325B (en) | Synchronous connector with ball bearings and straight-line transmission device utilizing same | |
| CN101661846A (en) | Support structure, method for manufacturing same, press key and keyboard | |
| CN215805578U (en) | Split type automobile aluminum alloy profile easy to assemble | |
| CN201030239Y (en) | Building block component and block toy | |
| CN206267489U (en) | The Multifunctional hollow Wood-plastic floor that a kind of band is snapped connection | |
| CN201747781U (en) | Ball heavy-load linear guide rail pair with retaining chains | |
| CN205964814U (en) | Jumping board and extension combination thereof | |
| CN204898946U (en) | Light gauge steel connection structure for building | |
| CN207681195U (en) | A kind of split type extrusion die | |
| CN205065059U (en) | It is high withstand voltage from cushioning plastic conduit | |
| CN203335635U (en) | Straight-line sliding assembly | |
| CN207495900U (en) | Adapter mold | |
| CN203432448U (en) | Packing of glass fiber reinforced plastics cooling tower | |
| CN205894158U (en) | Rainwater composite module's locking structure | |
| CN206653606U (en) | Ferrite core injection mold | |
| CN205588915U (en) | A connect bearing for bumper shock absorber | |
| CN203346735U (en) | Reinforced elastic strip | |
| CN203052012U (en) | Plastic double-wall corrugated pipeline | |
| CN202466399U (en) | Noise-reducing expansion device | |
| CN203613421U (en) | Sleeper base plate with stopping shoulders | |
| CN201895579U (en) | Car pedal | |
| CN204435857U (en) | Combination steel joist | |
| CN204896091U (en) | Can piece together plastic bottle of inserting connection for one set | |
| CN203755138U (en) | Novel post-tensioning method prestressed concrete box girder for passenger transport line | |
| CN103047282A (en) | Rolling ball retention chain capable of torsional operation and linear movement mechanism composed of same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20131217 |