CN104806719A - End plug type ball screw - Google Patents
End plug type ball screw Download PDFInfo
- Publication number
- CN104806719A CN104806719A CN201410039401.8A CN201410039401A CN104806719A CN 104806719 A CN104806719 A CN 104806719A CN 201410039401 A CN201410039401 A CN 201410039401A CN 104806719 A CN104806719 A CN 104806719A
- Authority
- CN
- China
- Prior art keywords
- backflow road
- contraposition part
- ball screw
- end plug
- perforation
- 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
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
An end plug type ball screw comprises a long shaft, a nut, and two end plugs. The nut is provided with a perforation for the long shaft to pass through; two ends of the perforation are respectively provided with mounting grooves; and a backflow hole communicated with the two mounting grooves is arranged between the two mounting grooves. The two end plugs are respectively arranged in the two mounting grooves; each of the two end plugs consists of a combination of a first element and a second element; the first element is provided with a C-shaped first aligning part; the second element is provided with a C-shaped second aligning part; two ends of the first aligning part are provided with a first end and a second end; two ends of the second aligning part are provided with a third end and a fourth end; the first end and the third end are mutually jointed with a normal direction of a backflow channel; the second end and the fourth end are respectively and mutually jointed with a tangential direction of the backflow channel; therefore, a complete aligning part is constituted by the first aligning part and the second aligning part.
Description
Technical field
The present invention is a kind of Linear transmission assembly, espespecially a kind of end plug type ball screw rod.
Background technique
Refer to shown in Fig. 1 to Fig. 4, be end plug type ball screw rod common at present, it comprises: a major axis 1, is strip structure, and the outer surface of this major axis 1 is provided with spiral helicine sliding channel 11, one nut 2, it is provided with the perforation 21 worn for this major axis 1, the inner edge surface of this perforation 21 is provided with the rolling groove 211 of this sliding channel 11 relatively, this sliding channel 11 forms a load path with rolling groove 211, the two ends of this perforation 21 are respectively equipped with a mounting groove 23, are provided with a return port 22 be communicated with two mounting grooves 23 between this mounting groove 23, two end plugs 3, be located at two these mounting grooves 23 respectively, this end plug 3 is provided with a backflow road 34, and these two ends, backflow road 34 are connected with this load path and return port 22 respectively, and two these backflow road 34, load path and return ports 22 form a circulating path, multiple rolling element 4, it is located at this circulating path, wherein, this end plug 3 is combined by the first component 31 and second component 32, this first component 31 is provided with the first contraposition part 312 of half backflow road 311 and a C type, this second component 32 is provided with the second contraposition part 322 of half backflow road 321 and a C type, two are somebody's turn to do half backflow road 311, 312 are combined into this backflow road 34, the sectional shape in this backflow road 34 is circular, and the two end part 3121 of this first contraposition part 312 and the second contraposition part 322, 3122, 3221, 3222 are bonded with each other as shown in Figure 4 with the tangent direction in this backflow road 34 respectively, this first contraposition part 312 and the second contraposition part 322 is made to be combined into a complete contraposition part 33, this contraposition part 33 is inserted in this return port 22, offset is had to produce to avoid the joining place refluxed between road 34 and return port 22.
But, though this contraposition part 33 can avoid joining place between backflow road 34 and return port 22 to have offset to produce, but because the two end part of this contraposition part 33 are because juncture design, make two these ends 3121, 3122, 3221, 3222 ends are flake, therefore easily engage and generation distortion because of misplacing because of correct contraposition during assembling, make two this first, two contraposition parts 312, the end 3121 of 322, 3122, 3221, the joint of 3222 produces dislocation as shown in Figure 3, correct this first, two contraposition parts 312, the two end part 3121 of 322, 3122, 3221, 3222 states be bonded with each other as shown in Figure 4, if now assembly crewman does not find that the end 3121,3122,3221,3222 of this first and second contraposition part 312,322 engages and produces dislocation, instrument is used again to beat this end plug 3, this contraposition part 33 is made to enter this return port 22, then make this end plug 3 corrupted and draw the smooth degree ringing rolling element 4 and run, ball screw more may be caused to damage, so plant end plug structural design to still have the necessity improveing and progress greatly.
Summary of the invention
Because the problems referred to above, main purpose of the present invention is: design a kind of one in the end plug structure being mounted to nut, avoids the dislocation that is bonded between assembly to produce.
For reaching above-mentioned object, solution of the present invention is:
A kind of end plug type ball screw rod, comprising: a major axis, is strip structure, and the outer surface of this major axis is provided with spiral helicine sliding channel, one nut, it is provided with the perforation worn for this major axis, and the inner edge surface of this perforation is provided with the rolling groove of this sliding channel relatively, and this sliding channel and rolling groove form a load path, the two ends of this perforation are respectively equipped with a mounting groove, are provided with a return port be communicated with two mounting grooves between this mounting groove, two end plugs, are located at two these mounting grooves respectively, and this end plug is provided with a backflow road, and these two ends, backflow road are connected with this load path and return port respectively, and two these backflow road, load path and return ports form a circulating path, multiple rolling element, it is located at this circulating path, wherein, this end plug is combined by the first component and second component, this first component is provided with the first contraposition part of half backflow road and a C type, this second component is provided with the second contraposition part of half backflow road and a C type, two should be combined into this backflow road in half backflow road, and the two ends of this first contraposition part have first end and the second end, the two ends of the second contraposition part have the 3rd end and the 4th end, the Normal direction in this first end and the 3rd end and this backflow road is bonded with each other, this the second end and the 4th end are bonded with each other with the tangent direction in this backflow road respectively, this first contraposition part and the second contraposition part is made to be combined into a complete contraposition part.
Preferably, the 4th end is positioned at the inner side of the second end.
Whereby, the present invention is by this first end, the 3rd end and the second end, the asymmetric bond layout in two groups, the 4th end, allow assembly crewman when this first end, the 3rd end and the second end, the 4th end contraposition engage, only need notice this second end, whether the 4th end engage correctly, and this first end, the 3rd end because be along backflow road Normal direction engage, therefore do not have the problem generation engaging dislocation, because the problem of prior art can be improved completely, to improve ball screw fine ratio of product and ride quality.
Accompanying drawing explanation
Fig. 1 is the system diagram of the end plug type ball screw rod of prior art;
Fig. 2 is the constitutional diagram of the end plug type ball screw rod of prior art;
Fig. 3 is the sectional view of the end plug type ball screw rod of prior art, and during assembling end plug, the two ends of contraposition part produce the state that dislocation engages;
Fig. 3 A is the partial enlarged drawing at A place in Fig. 3;
Fig. 4 is the sectional view of the end plug type ball screw rod of prior art, the state that during assembling end plug, the two ends of contraposition part correctly engage;
Fig. 4 A is the partial enlarged drawing at B place in Fig. 4;
Fig. 5 is the system diagram of the end plug type ball screw rod of prior art;
Fig. 6 is the constitutional diagram of the end plug type ball screw rod of prior art;
Fig. 7 is the sectional view of the end plug type ball screw rod of prior art, the state that during assembling end plug, joining portion is bonded with each other;
Fig. 7 A is the partial enlarged drawing at C place in Fig. 7.
[symbol description]
Prior art:
1 major axis 11 sliding channel
2 nuts 21 are bored a hole
211 sliding channel 22 return ports
23 mounting groove 3 end plugs
31 first components 311 half backflow roads
312 first contraposition part 3121,3122 ends
32 second components 321 half backflow roads
322 second contraposition part 3221,3222 ends
33 contraposition parts 34 reflux
4 rolling elements
The present invention:
1 major axis 11 sliding channel
2 nuts 21 are bored a hole
211 sliding channel 22 return ports
23 mounting groove 3 end plugs
31 first components 311 half backflow roads
312 first contraposition part 3121 first ends
3122 the second end 32 second components
321 half backflow road 322 second contraposition parts
3221 the 3rd end, ends 3222 the 4th
33 contraposition parts 34 reflux
4 rolling element U Normal directions.
Embodiment
In order to explain technological scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
Refer to shown in Fig. 5 to Fig. 7, be a preferred embodiment of the present invention, the present invention is a kind of end plug type ball screw rod, and it comprises: a major axis 1, is strip structure, and the outer surface of this major axis 1 is provided with spiral helicine sliding channel 11, one nut 2, it is provided with the perforation 21 worn for this major axis 1, the inner edge surface of this perforation 21 is provided with the rolling groove 211 of this sliding channel 11 relatively, this sliding channel 11 forms a load path with rolling groove 211, the two ends of this perforation 21 are respectively equipped with a mounting groove 23, are provided with a return port 22 be communicated with two mounting grooves 23 between this mounting groove 23, two end plugs 3, be located at two these mounting grooves 23 respectively, this end plug 3 is provided with a backflow road 34, and these two ends, backflow road 34 are connected with this load path and return port 22 respectively, and two these backflow road 34, load path and return ports 22 form a circulating path, multiple rolling element 4, it is located at this circulating path, wherein, this end plug 3 is combined by the first component 31 and second component 32, this first component 31 is provided with the first contraposition part 312 of half backflow road 311 and a C type, this second component 32 is provided with the second contraposition part 322 of half backflow road 321 and a C type, two are somebody's turn to do half backflow road 311, 312 are combined into this backflow road 34, the cross section optimum shape in this backflow road 34 is circular, also can be rectangle, and the two ends of this first contraposition part 312 have first end 3121 and the second end 3122, the two ends of the second contraposition part 322 have the 3rd end 3221 and the 4th end 3222, this first end 3121 and the 3rd end 3221 are bonded with each other with the Normal direction U in this backflow road 34, the Normal direction U of indication of the present invention refers to the direction with the cross section orthogonal in this backflow road 34, this the second end 3122 and the 4th end 3222 are bonded with each other with the tangent direction in this backflow road 34 respectively, as shown in Figure 7, 4th end 3222 is positioned at the inner side of this second end 3122, this first contraposition part 312 and the second contraposition part 322 is made to be combined into a complete contraposition part 33.
The announcement of the above embodiment in order to the present invention to be described, and is not used to limit the present invention, therefore the change of numerical value and the displacement of equivalent elements such as, category of the present invention must be subordinate to.
Claims (2)
1. an end plug type ball screw rod, is characterized in that, comprises: a major axis, is strip structure, and the outer surface of this major axis is provided with spiral helicine sliding channel, one nut, it is provided with the perforation worn for this major axis, and the inner edge surface of this perforation is provided with the rolling groove of this sliding channel relatively, and this sliding channel and rolling groove form a load path, the two ends of this perforation are respectively equipped with a mounting groove, are provided with a return port be communicated with two mounting grooves between this mounting groove, two end plugs, are located at two these mounting grooves respectively, and this end plug is provided with a backflow road, and these two ends, backflow road are connected with this load path and return port respectively, and two these backflow road, load path and return ports form a circulating path, multiple rolling element, it is located at this circulating path, wherein, this end plug is combined by the first component and second component, this first component is provided with the first contraposition part of half backflow road and a C type, this second component is provided with the second contraposition part of half backflow road and a C type, two should be combined into this backflow road in half backflow road, and the two ends of this first contraposition part have first end and the second end, the two ends of the second contraposition part have the 3rd end and the 4th end, the Normal direction in this first end and the 3rd end and this backflow road is bonded with each other, this the second end and the 4th end are bonded with each other with the tangent direction in this backflow road respectively, this first contraposition part and the second contraposition part is made to be combined into a complete contraposition part.
2. end plug type ball screw rod as claimed in claim 1, is characterized in that: the 4th end is positioned at the inner side of the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039401.8A CN104806719B (en) | 2014-01-27 | 2014-01-27 | End plug type ball screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039401.8A CN104806719B (en) | 2014-01-27 | 2014-01-27 | End plug type ball screw rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104806719A true CN104806719A (en) | 2015-07-29 |
| CN104806719B CN104806719B (en) | 2018-03-02 |
Family
ID=53691815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410039401.8A Active CN104806719B (en) | 2014-01-27 | 2014-01-27 | End plug type ball screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806719B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221690A (en) * | 2015-10-28 | 2016-01-06 | 北京精密天工滚珠丝杠股份有限公司 | Ball screw pair plastics splicing type end plug |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084823A (en) * | 2002-08-27 | 2004-03-18 | Nsk Ltd | Ball screw |
| JP2007147028A (en) * | 2005-11-30 | 2007-06-14 | Thk Co Ltd | Rolling element screw device and method of manufacturing its circulation member |
| CN101063479A (en) * | 2006-04-27 | 2007-10-31 | 上银科技股份有限公司 | Ball screw rod composite set |
| CN101655145A (en) * | 2008-08-21 | 2010-02-24 | Smc株式会社 | Ball screw mechanism |
| CN202032055U (en) * | 2011-03-31 | 2011-11-09 | 上银科技股份有限公司 | External-circulation ball screw |
| JP2011241852A (en) * | 2010-05-14 | 2011-12-01 | Nsk Ltd | Ball screw |
| CN203272653U (en) * | 2013-04-19 | 2013-11-06 | 全球传动科技股份有限公司 | Ball screw rod |
-
2014
- 2014-01-27 CN CN201410039401.8A patent/CN104806719B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084823A (en) * | 2002-08-27 | 2004-03-18 | Nsk Ltd | Ball screw |
| JP2007147028A (en) * | 2005-11-30 | 2007-06-14 | Thk Co Ltd | Rolling element screw device and method of manufacturing its circulation member |
| CN101063479A (en) * | 2006-04-27 | 2007-10-31 | 上银科技股份有限公司 | Ball screw rod composite set |
| CN101655145A (en) * | 2008-08-21 | 2010-02-24 | Smc株式会社 | Ball screw mechanism |
| JP2011241852A (en) * | 2010-05-14 | 2011-12-01 | Nsk Ltd | Ball screw |
| CN202032055U (en) * | 2011-03-31 | 2011-11-09 | 上银科技股份有限公司 | External-circulation ball screw |
| CN203272653U (en) * | 2013-04-19 | 2013-11-06 | 全球传动科技股份有限公司 | Ball screw rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221690A (en) * | 2015-10-28 | 2016-01-06 | 北京精密天工滚珠丝杠股份有限公司 | Ball screw pair plastics splicing type end plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104806719B (en) | 2018-03-02 |
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| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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| GR01 | Patent grant |