CN206874770U - De- homing position type ball screw assembly, - Google Patents
De- homing position type ball screw assembly, Download PDFInfo
- Publication number
- CN206874770U CN206874770U CN201720533442.1U CN201720533442U CN206874770U CN 206874770 U CN206874770 U CN 206874770U CN 201720533442 U CN201720533442 U CN 201720533442U CN 206874770 U CN206874770 U CN 206874770U
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- CN
- China
- Prior art keywords
- ball
- thread
- screw
- sealing ring
- ball 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses de- homing position type ball screw assembly, including ball-screw and ball nut, glissile segment is provided between the thread segment and linkage section of ball-screw, thread segment opens as the 1/2 whole pitch thread of circle, ball nut is in tetragonal body shape, two end axles are arranged with its side wall, the screw thread ball grooves to match each other are provided between ball nut and thread segment, some steel balls are provided with screw thread ball grooves, the both ends of ball nut are embedded with Special dustproof sealing ring, Special dustproof sealing ring is fixedly connected by screw with ball nut, Special dustproof sealing ring is provided with the screw thread mutually agreed with the 1/2 whole pitch thread of circle and opened, and the screw thread on the inside of the Special dustproof sealing ring mutually agrees with thread segment, the outside of Special dustproof sealing ring is provided with jump ring.While the ball screw assembly, of the present utility model motion process that reentrant thread segment raceway work moves axially when dislocation stop, reversion when realizing that ball nut rotates forward, preferable dust-proof and sealing function is also achieved.
Description
Technical field
A kind of ball screw assembly, is the utility model is related to, more particularly, to a kind of de- homing position type ball screw assembly,.
Background technology
At present, the power switch of most dynamoelectric equipment, delay feed motion device etc. need ball nut to do to rotate forward dislocation and stop
Stay, invert the motion of reset movement.But existing ball screw assembly, its ball nut can only be transported in the screw thread of thread segment
It is dynamic, mechanical breakdown is reformed into after departing from screw thread, can not be worked again, this just needs to design special ball screw assembly,.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of stop of dislocating when can realizing rotating forward, resets during reversion
Mobile de- homing position type ball screw assembly,.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
De- homing position type ball screw assembly, including ball-screw and ball nut, ball-screw include thread segment and linkage section,
Glissile segment is provided between the thread segment and linkage section of ball-screw, opening for thread segment is in for the 1/2 whole pitch thread of circle, ball nut
Tetragonal body shape, two end axles are arranged with the side wall of ball nut, are provided with what is matched each other between ball nut and thread segment
Screw thread ball grooves, screw thread ball grooves are interior to be provided with some steel balls, and the both ends of ball nut are embedded with Special dustproof sealing ring, special anti-
Dirt sealing ring is fixedly connected by screw with ball nut, and Special dustproof sealing ring is provided with what is mutually agreed with the 1/2 whole pitch thread of circle
Screw thread is opened, and the screw thread on the inside of the Special dustproof sealing ring mutually agrees with thread segment, and the outside of Special dustproof sealing ring is provided with
Jump ring.
The diameter of the glissile segment is identical with the core diameter of thread of thread segment, length be more than ball nut length.
The entrance angle of the whole pitch thread of 1/2 circle is 25 ° -35 °.
The end of the whole pitch thread of 1/2 circle is in rounding horn shape.
Compared with prior art, the utility model has the advantages that：Ball screw assembly, of the present utility model is slided by setting
The cooperation that section and the 1/2 whole pitch thread of circle that entrance angle is 25 ° -35 ° open with Special dustproof sealing ring internal thread, realizes ball
Reentrant thread segment raceway makees the motion process moved axially when dislocation is stopped, inverted when nut rotates forward, while also achieves preferably
Dust-proof and sealing function.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the mplifying structure schematic diagram in I regions in Fig. 1；
Fig. 3 is the side structure schematic view of special dust-proof seal ring in the utility model.
Wherein, 1, thread segment, 2, ball nut, 3, steel ball, 4, Special dustproof sealing ring, 5, jump ring, 6, glissile segment, 7, even
Connect section, 8, the 1/2 whole pitch thread of circle, 9, end axle, 10, screw, 11, screw thread ball grooves, 12, screw thread opens.
Embodiment：
As shown in Figure 1 to Figure 3, homing position type ball screw assembly, including ball-screw and ball nut 2, ball-screw bag are taken off
Include thread segment 1 and linkage section 7, be provided with glissile segment 6 between the thread segment 1 and linkage section 7 of ball-screw, thread segment 1 open for
The 1/2 whole pitch thread 8 of circle, ball nut 2 is in tetragonal body shape, it is ensured that the guiding accuracy of thread segment 1, it is right in the side wall of ball nut 2
Claim to be provided with two end axles 9, both driven the part of connection to be axially moved, and can prevents ball nut 2 from rotating in dislocation, ball spiral shell
The screw thread ball grooves 11 to match each other are provided between mother 2 and thread segment 1, some steel balls 3, ball spiral shell are provided with screw thread ball grooves 11
The both ends of mother 2 are embedded with Special dustproof sealing ring 4, and Special dustproof sealing ring 4 is fixedly connected by screw 10 with ball nut 2,
Prevent Special dustproof sealing ring 4 from being rotated with thread segment 1, Special dustproof sealing ring 4 is provided with and the 1/2 whole phase contract of pitch thread 8 of circle
The screw thread of conjunction opens 12, and the screw thread of the inner side of Special dustproof sealing ring 4 agrees with the phase of thread segment 1, it is existing it is dust-proof, seal work(
Can, more reversing reset function, the outside of Special dustproof sealing ring 4 is provided with jump ring 5, jump ring 5 can make Special dustproof sealing ring 4 by
To enough axial compressive forces, it is ensured that axial tensile-strength.
In the utility model, the diameter of glissile segment 6 is identical with the core diameter of thread of thread segment 1, length is more than ball nut 2
Length, when ball nut leaves thread segment 1, even if leading screw continues to rotate, it is still steady that ball nut connects synkinematic ball 3
Rest on glissile segment 6.
The entrance angle of the 1/2 whole pitch thread 8 of circle is 25 ° -35 °, and end is in rounding horn shape, it is ensured that ball nut 2 has enough
Simultaneously smooth return of energy axially moves pulling force into thread segment 1.
Claims (4)
1. de- homing position type ball screw assembly, including ball-screw and ball nut, the ball-screw include thread segment and connection
Section, it is characterised in that：Glissile segment is provided between the thread segment and linkage section of the ball-screw, the thread segment opens as 1/
The 2 whole pitch threads of circle, the ball nut is in tetragonal body shape, and two end axles are arranged with the side wall of the ball nut, described
The screw thread ball grooves to match each other are provided between ball nut and thread segment, some steel balls, institute are provided with the screw thread ball grooves
The both ends for stating ball nut are embedded with Special dustproof sealing ring, and the Special dustproof sealing ring is fixed by screw and ball nut
Connection, the Special dustproof sealing ring is provided with the screw thread mutually agreed with the 1/2 whole pitch thread of circle and opened, and the Special dustproof sealing ring
The screw thread of inner side mutually agrees with thread segment, and the outside of the Special dustproof sealing ring is provided with jump ring.
2. de- homing position type ball screw assembly, according to claim 1, it is characterised in that：The diameter and screw thread of the glissile segment
Section the core diameter of thread is identical, length is more than the length of ball nut.
3. de- homing position type ball screw assembly, according to claim 1, it is characterised in that：The 1/2 whole pitch thread of circle is cut
Enter angle for 25 ° -35 °.
4. the de- homing position type ball screw assembly, according to claim 1 or 3, it is characterised in that：The whole pitch thread of 1/2 circle
End is in rounding horn shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720533442.1U CN206874770U (en) | 2017-05-15 | 2017-05-15 | De- homing position type ball screw assembly, |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720533442.1U CN206874770U (en) | 2017-05-15 | 2017-05-15 | De- homing position type ball screw assembly, |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874770U true CN206874770U (en) | 2018-01-12 |
Family
ID=61339575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720533442.1U Withdrawn - After Issue CN206874770U (en) | 2017-05-15 | 2017-05-15 | De- homing position type ball screw assembly, |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979294A (en) * | 2017-05-15 | 2017-07-25 | 江苏启尖丝杠制造有限公司 | De- homing position type ball screw assembly, |
-
2017
- 2017-05-15 CN CN201720533442.1U patent/CN206874770U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979294A (en) * | 2017-05-15 | 2017-07-25 | 江苏启尖丝杠制造有限公司 | De- homing position type ball screw assembly, |
| CN106979294B (en) * | 2017-05-15 | 2019-01-29 | 江苏启尖丝杠制造有限公司 | De- homing position type ball screw assembly, |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180112 Effective date of abandoning: 20180612 |
|
| AV01 | Patent right actively abandoned |