CN111306273A - Ball screw with alignment effect circulator - Google Patents
Ball screw with alignment effect circulator Download PDFInfo
- Publication number
- CN111306273A CN111306273A CN202010326726.XA CN202010326726A CN111306273A CN 111306273 A CN111306273 A CN 111306273A CN 202010326726 A CN202010326726 A CN 202010326726A CN 111306273 A CN111306273 A CN 111306273A
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- Prior art keywords
- circulator
- nut
- ball
- screw
- thread groove
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- 230000000694 effects Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 abstract description 6
- 230000008092 positive effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a ball screw with a positive effect circulator. It includes: screw rod, nut and a plurality of ball, the screw rod is located to the nut cover, and inside the nut, the screw rod outside is equipped with the thread groove respectively, the ball is installed in the thread groove, the inside circulation passageway that is equipped with of nut, the nut is equipped with installs hole and fixed orifices, the circulator is installed in installing the hole, the inside backward flow passageway that is equipped with of circulator, the backward flow passageway has first end and second end, first end communicates with each other with the circulation passageway, the second end communicates in the thread groove, the circulator is equipped with compelled guide portion, compelled guide portion sets up in circulator and towards the fixed orifices, the fixed orifices is connected with the mounting, the mounting has: a screw lock part, a neck part and a driven part; the screw part is screwed in the fixing hole, and the neck presses the forced guide part. Because the circulator has the forced guide part on the outer surface, the head of the fixing piece can press the forced guide part to guide the circulator to align along the outline direction of the mounting hole in the screwing process of the fixing piece, thereby achieving the alignment effect.
Description
Technical Field
The invention relates to a ball screw, in particular to a ball screw with an alignment effect circulator, wherein a nut of the ball screw is provided with the alignment effect circulator.
Background
The ball screw converts the rotary motion into linear motion through the matching of balls, the screw and the nut, and is widely applied to industry due to high precision; the ball screw is divided into: external circulation type, internal circulation type, side plug type, etc.; in the circulation process, the ball changes the movement direction through the circulator arranged on the nut, and the ball is respectively matched with the nut and the screw rod, so that the friction force between the nut and the screw rod is reduced, and the ball screw rod runs more smoothly; the invention mainly discusses a side plug type, and a ball screw in a circulator form is radially assembled outside a nut cap body.
However, the conventional structure still has some problems in practical applications, such as: because the circulator is assembled from the outer part of the nut cap body to the cap body in the radial direction when being installed; the circulator is provided with a backflow channel, and an outlet and an inlet of the backflow channel are required to be accurately aligned to a load path and a backflow path of the cap body, so that the adverse phenomena of noise, temperature rise and the like caused by collision and friction in work due to installation deviation are avoided; therefore, during manufacturing, the assembling parts on the circulator body and the nut cap body are arranged to be in shapes of non-perfect circles and the like, wherein the appearances of the assembling parts are matched; thereby generating the contraposition effect; therefore, the circulator body is difficult to manufacture, and the assembling part of the nut cap body is time-consuming and difficult to process.
In view of the above problems, how to develop an innovative structure with more ideal practicability is a direction for related industry personnel to develop and break through; in view of the above, the inventor designs the invention with practical applicability after detailed design and careful evaluation according to the manufacturing, research and design experience of the related products.
Disclosure of Invention
The invention aims to provide a ball screw with an alignment effect circulator aiming at the defects of the prior art, and the technical problems to be solved are as follows: the innovative breakthrough is made for developing a new ball screw with an alignment effect circulator with ideal practicability.
Based on the purpose of the invention, the technical scheme adopted by the invention is as follows:
a ball screw having an alignment effect circulator, comprising: screw rod, nut and a plurality of ball, this nut cover locate the screw rod, and inside the nut, the screw rod outside is equipped with continuous and thread groove that corresponds each other respectively, the ball is installed in the thread groove, and the nut is inside to be equipped with circulation channel along the axial, and nut surface both ends correspond the thread groove and respectively are equipped with and install hole and fixed orifices, the circulator install in install the hole, the inside backward flow passageway that is equipped with of circulator, this backward flow passageway have first end and second end, and wherein first end communicates with each other with circulation channel, and the second end communicates in the thread groove and guides the ball to remove between thread groove and circulation channel, the circulator is equipped with the guide portion that is compelled, and the guide portion that is compelled sets up in the surface of circulator and towards the fixed orifices, the fixed orifices is connected with the mounting, and: a screw lock portion, a neck portion, and a driven portion; wherein, the screw lock part is screwed in the fixing hole, and the neck presses the forced guide part.
The invention has the main effects and advantages that: the installation holes of the circulating ring body and the nut cap body are set to be in accordance with the appearance and in a regular circular shape, so that the production unit can greatly promote production and manufacture when the installation holes of the nut cap body are processed and manufactured, and the nut cap body has the advantages of being simpler to process and has the characteristic of practicability.
The invention has the beneficial effects that: because the circulator has the forced guide part relationship on the outer surface, the head of the fixing piece can press the forced guide part to guide the circulator to align along the outline direction of the mounting hole in the screwing process of the fixing piece, thereby achieving the alignment effect.
Drawings
Fig. 1 is a perspective view of a combination of the present embodiment.
Fig. 2 is a schematic top view of the present embodiment.
Fig. 3 is a cross-sectional view in the direction AA of fig. 2.
Fig. 4 is an implementation diagram of the present embodiment during installation.
Fig. 5 is another embodiment of the present embodiment when installed.
FIG. 6 is a diagram of an embodiment of the groove pattern of the present embodiment.
FIG. 7 is a diagram of an embodiment of the concave arc shape of the present embodiment.
FIG. 8 is a diagram of an embodiment of the chamfered planar shape of the present embodiment.
FIG. 9 is an exploded view of the circulator assembly of the present embodiment.
FIG. 10 is a sectional view of the circulator as assembled on the nut.
The reference numerals include:
ball screw-A; screw-01; nut-02; ball-03; thread groove-04; circulation channel-05; mounting holes-10; a fixing hole-20; thread segment-21; a head receiving section-22; circulator-30; a return channel-31; first end-311; a second end-312; a first circulation block-32; a second circulation block-33; a female closure portion-321; male commissure-331; a first channel groove-34; a second channel groove-35; forced guide-40; a fixture-50; a screw-lock portion-51; head-52; the passive portion 53.
Detailed Description
The present invention is described in detail below with reference to the attached drawings. As shown in fig. 1-10.
Example (b): referring to fig. 1 to 3, this embodiment is a preferred embodiment of the ball screw with alignment effect circulator according to the present invention, and the structure is for illustration purpose only and is not limited by the structure in the patent application.
As shown in fig. 1, the ball screw a includes the following: the screw rod 01, a nut 02, the circulator 30 and a plurality of rollers 03, the nut 02 is sleeved on the screw rod 01, the screw rod 01 is internally provided with a thread groove 04 which continuously corresponds to each other and the screw rod 01 is externally provided with a thread groove 04, and the balls are arranged in the thread grooves 04; a circulation channel 05 is arranged in the nut 02 along the axial direction, and two ends of the outer surface of the nut 02 are respectively provided with an installation hole and a fixing hole 20 corresponding to the thread grooves 04; the circulator 30 is installed in the installation hole 10, and a return channel 31 is arranged in the circulator 30 and has a first end 311 and a second end 312; wherein the first end is communicated with the circulation passage 05, the second end is communicated with the thread groove 04 and is used for guiding the ball 03 to move between the thread groove 04 and the circulation passage 05, the circulator 30 is provided with a forced guide part 40 which is arranged on the outer surface of the circulator 30 and faces the fixing hole 20; the fixing hole is connected with a fixing piece 50, and the fixing piece 50 is provided with a screw part 51, a neck part 52 and a driven part 53; the screw part 51 is screwed into the fixing hole 20 of the nut 02, and the neck part 52 presses the forced guide part 40.
As shown in fig. 4, in the present embodiment, the fixing hole 20 has a threaded section 21 and a neck receiving section 22, the threaded portion 51 of the fixing member 50 is disposed on the threaded section 21, the neck 52 of the fixing member 50 is disposed on the neck receiving section 22, when the fixing hole 20 has both the threaded section 21 and the neck receiving section 22, the forced guiding portion 40 and the head receiving section 22 are communicated with each other, and the structure of the present embodiment is mainly described as follows: since the fixing hole 20 has the threaded section 21 and the neck receiving section 22, the forced guiding portion 40 and the neck receiving section 22 are communicated with each other, so that the head 52 of the fixing member 50 presses the forced guiding portion 40.
Through the above structural configuration and technical features, the ball screw a with the alignment effect circulator 30 disclosed in the present technical solution is shown in fig. 4 in practical use, when the diameter of the forming cutter is adapted to the diameter of the preset installation hole 10 at both ends of the outer surface of the nut 02, the installation hole 10 is respectively opened at both ends of the outer surface of the nut 02 and corresponding to the thread groove 04, the circulator 30 is installed in the installation hole 10, and the outer surface of the circulator 30 is provided with the forced guiding portion 40 and faces the fixing hole 20, as can be seen from this, in the present application: the mounting holes of the circulator 30 body and the nut 02 cap body can be arranged in a regular round shape with the same appearance; therefore, when the production unit processes and manufactures the installation space 10 of the nut 02 cap body, the production and the manufacture are greatly improved, and the processing is simpler; furthermore, as shown in fig. 5, at this time, the screw portion 51 of the fixing member 50 is screwed to the screw thread portion 21 of the fixing hole 20, the head 52 of the fixing member 50 sinks into the head receiving portion 22 of the fixing hole 20, and the circulator 30 is in a perfect circular shape, and can be installed in the installation hole 10 in any angular direction, the circulator 30 may cause slight deviation in the process of being installed in the installation hole 10, but can still be installed in the installation hole 10, and because the forced guide portion 40 is disposed on the outer surface of the circulator 30 to guide the circulator 30 to be aligned along the contour direction of the installation hole 10, the alignment effect is achieved, and the balls 03 can smoothly move among the screw groove 04, the circulator 30 and the return channel 31. The number of the balls 03 is set according to actual conditions, and the backflow channel 31 is filled with at least 10 balls generally. The number of the screw caps 02 may be 1, or 2 or more than 2, and is set according to actual needs.
As shown in fig. 6 to 8, in the present embodiment, the forced guiding portion 40 may be any one of a concave arc, a groove, a chamfered plane, etc.; the forced guide 40 is provided in this embodiment to correct the alignment of the circulator 30 when any one of the groove (shown in fig. 6), the concave arc (shown in fig. 7) and the chamfered plane (shown in fig. 8) of the forced guide 40 is pressed by the head 52 of the fixing member 50.
As shown in fig. 9 and 10, the circulator 30 of the present embodiment has a first circulation block 32 and a second circulation block 33, the first circulation block 32 is provided with a first channel groove 34, the second circulation block 33 is provided with a second channel groove 35, the second circulation block 33 presses the first circulation block 32, and the outer surface of the second circulation block 33 is provided with the forced guiding portion 40; preferably, in this embodiment, the first circulation block 32 has a female engaging portion 321, the second circulation block 33 has a male engaging portion 331, when the female engaging portion 321 is engaged with the male engaging portion 331, the first channel groove 34 and the second channel groove 35 form a return channel 31, the return channel 31 has a first end 311 and a second end 312, the first end 311 is communicated with the circulation channel 05, and the second end 312 is communicated with the thread groove 04 for guiding the ball 03 to move between the thread groove 04 and the circulation channel 05.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (5)
1. A ball screw having an alignment effect circulator, the ball screw comprising: screw rod, nut and a plurality of ball, the screw rod is located to this nut cover, and inside the nut, the screw rod outside is equipped with continuous and thread groove that corresponds each other respectively, the ball is installed in the thread groove, and the nut is inside to be equipped with circulation channel, its characterized in that along the axial: the screw cap surface both ends correspond the thread groove respectively and are equipped with and install hole and fixed orifices, the circulator install in install the hole, the inside backward flow passageway that is equipped with of circulator, this backward flow passageway has first end and second end, wherein first end communicates with each other with circulation channel, and the second end communicates in the thread groove and guides the ball to move between thread groove and circulation channel, the circulator is equipped with the guide portion that compels, and the guide portion that compels sets up in the surface of circulator and towards the fixed orifices, the fixed orifices is connected with the mounting, and this mounting has: a screw lock portion, a neck portion, and a driven portion; wherein, the screw lock part is screwed in the fixing hole, and the neck presses the forced guide part.
2. A ball screw with an alignment effect circulator as claimed in claim 1 wherein: the forced guide is any one of a concave arc, a groove, or a chamfered plane.
3. A ball screw with an alignment effect circulator as claimed in claim 1 or 2, wherein: the circulator is provided with a first circulating block and a second circulating block, the first circulating block is provided with a first channel groove, the second circulating block is provided with a second channel groove, and the outer surface of the second circulating block is provided with the forced guide part.
4. A ball screw with an alignment effect circulator as claimed in claim 3 wherein: the first circulation block is provided with a concave combination part, the second circulation block is provided with a convex combination part, when the concave combination part is mutually embedded with the convex combination part, the first channel groove and the second channel groove form the backflow channel, the backflow channel is provided with a first end and a second end, the first end is communicated with the circulation channel, and the second end is communicated with the thread groove and used for guiding the ball to move between the thread groove and the circulation channel.
5. A ball screw with an alignment effect circulator as claimed in claim 1 wherein: the fixing hole is provided with a threaded section and a head accommodating section, the threaded section is arranged on the threaded section, the head of the fixing piece is arranged on the head accommodating section, and when the fixing hole is provided with the threaded section and the head accommodating section, the forced guide part is communicated with the head accommodating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326726.XA CN111306273A (en) | 2020-04-23 | 2020-04-23 | Ball screw with alignment effect circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326726.XA CN111306273A (en) | 2020-04-23 | 2020-04-23 | Ball screw with alignment effect circulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111306273A true CN111306273A (en) | 2020-06-19 |
Family
ID=71150241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010326726.XA Pending CN111306273A (en) | 2020-04-23 | 2020-04-23 | Ball screw with alignment effect circulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306273A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039048A (en) * | 2006-08-07 | 2008-02-21 | Shangyin Sci & Technol Co Ltd | Stepped recirculation element of ball screw |
| TWM335590U (en) * | 2007-11-09 | 2008-07-01 | Hiwin Tech Corp | Improvement on positioning structure for circulation device of a ball bearing screw |
| TW201226741A (en) * | 2010-12-24 | 2012-07-01 | Hiwin Tech Corp | External circulation type ball screw |
| TW201837344A (en) * | 2017-02-23 | 2018-10-16 | 日商Ｔｈｋ股份有限公司 | Screw device |
| CN212203012U (en) * | 2020-04-23 | 2020-12-22 | 东莞鼎企智能自动化科技有限公司 | Ball screw with alignment effect circulator |
-
2020
- 2020-04-23 CN CN202010326726.XA patent/CN111306273A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039048A (en) * | 2006-08-07 | 2008-02-21 | Shangyin Sci & Technol Co Ltd | Stepped recirculation element of ball screw |
| TWM335590U (en) * | 2007-11-09 | 2008-07-01 | Hiwin Tech Corp | Improvement on positioning structure for circulation device of a ball bearing screw |
| TW201226741A (en) * | 2010-12-24 | 2012-07-01 | Hiwin Tech Corp | External circulation type ball screw |
| TW201837344A (en) * | 2017-02-23 | 2018-10-16 | 日商Ｔｈｋ股份有限公司 | Screw device |
| CN212203012U (en) * | 2020-04-23 | 2020-12-22 | 东莞鼎企智能自动化科技有限公司 | Ball screw with alignment effect circulator |
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