CN103016666A - Spring pre-tightening dual-nut lead-screw transmission device - Google Patents
Spring pre-tightening dual-nut lead-screw transmission device Download PDFInfo
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- CN103016666A CN103016666A CN 201110286552 CN201110286552A CN103016666A CN 103016666 A CN103016666 A CN 103016666A CN 201110286552 CN201110286552 CN 201110286552 CN 201110286552 A CN201110286552 A CN 201110286552A CN 103016666 A CN103016666 A CN 103016666A
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- nut
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- seat
- tightening
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Abstract
The invention relates to a spring pre-tightening dual-nut lead-screw transmission device for a planer-type milling machine, a single-side milling machine and a two-sided milling machine, and the spring pre-tightening dual-nut lead-screw transmission device comprises a nut seat (1), a lead screw (3), a main nut (4) and six internal hexagonal screws (2) which are uniformly distributed in the circumferential direction, wherein a cylindrical part on the small end of the main nut (4) is installed into a hole of the nut seat (1), the main nut (4) is tightly connected onto the nut seat (4) through the internal hexagonal screws (2), the lead screw (3) and the main nut (4) are connected with each other through transmission threads of a trapezoid gear, the lead screw (3) is also provided with an auxiliary nut (6) through the transmission threads of the trapezoid gear, a compression spring (5) is installed between the main nut (4) and the auxiliary nut (6), and the auxiliary nut (6) is connected with the nut seat (1) through a key (7). The spring pre-tightening dual-nut lead-screw transmission device is simple in structure, automatic for adjusting the clearance, high in transmission precision, safe and reliable and long in service life.
Description
Technical field:
The present invention relates to mechanical transmission, specifically a kind of spring pre-tightening double-nut lead-screw driving device for planomiller, single face milling machine, double sides milling machine.
Background technique:
The spindle gear that existing planomiller, single face milling machine, double sides milling machine adopt is to adopt single nut to carry out transmission, because the single nut drive gap is difficult to eliminate, axial motion is larger, directly causes machining accuracy to descend, and maintenance load is large, and cost is high.
Summary of the invention:
Purpose of the present invention just provides a kind of simple in structure, automatic gap adjusting, and transmission accuracy is high, and is safe and reliable, the spring pre-tightening double-nut lead-screw driving device of long service life.
For achieving the above object, spring pre-tightening double-nut lead-screw driving device of the present invention comprises nut seat, screw mandrel, mother nut and six circumferential uniform socket head screws, microcephaly's column part of mother nut is packed in the hole of nut seat, and with socket head screw mother nut is fastenedly connected on nut seat, screw mandrel is connected by the stepped tooth motion thread with mother nut, the secondary nut that is connected by the stepped tooth motion thread also is housed on the screw mandrel, between mother nut and secondary nut Compress Spring is housed, secondary nut is connected with nut seat by key; The internal diameter of Compress Spring should be greater than the external diameter of screw mandrel, and the external diameter of Compress Spring should be less than the diameter of bore of nut seat; Mother nut stretches between the endoporus of the excircle part of nut seat and nut seat and adopts transition fit.
The present invention is owing to being equipped with mother nut and secondary nut at screw mandrel, Compress Spring is installed between mother nut and the secondary nut, during installation, but the elastic force pretension mother nut that Compress Spring produces and secondary nut are on screw mandrel, thereby reach the thread pitch between automatic elimination mother nut and secondary nut and the screw mandrel, transmission accuracy is high, and is safe and reliable, long service life.
Description of drawings:
Fig. 1 is overall structure schematic diagram of the present invention.
Embodiment:
Shown in Fig. 1 is a specific embodiment of the present invention, spring pre-tightening double-nut lead-screw driving device of the present invention comprises nut seat 1, screw mandrel 3, mother nut 4 and six circumferential uniform socket head screws 2, microcephaly's column part of mother nut 4 is packed in the hole of nut seat 1, and with socket head screw 2 mother nut 4 is fastenedly connected on nut seat 1, screw mandrel 3 is connected by the stepped tooth motion thread with mother nut 4, the secondary nut 6 that is connected by the stepped tooth motion thread also is housed on the screw mandrel 3, between mother nut 4 and secondary nut 6, Compress Spring 5 is housed, but the elastic force pretension mother nut 4 that Compress Spring 5 produces and secondary nut 6 are on screw mandrel 3, can automatically eliminate the thread pitch between mother nut 4 and secondary nut 6 and the screw mandrel 3, secondary nut 6 is connected with nut seat 1 by key 7.The internal diameter of Compress Spring 5 should be greater than the external diameter of screw mandrel 3, and the external diameter of Compress Spring 5 should be less than the diameter of bore of nut seat 1, in order to Compress Spring 5 is installed.Mother nut 4 stretches between the endoporus of the excircle part of nut seat 1 and nut seat 1 and adopts transition fit.
Claims (3)
1. spring pre-tightening double-nut lead-screw driving device, comprise nut seat (1), screw mandrel (3), mother nut (4) and six circumferential uniform socket head screws (2), microcephaly's column part of mother nut (4) is packed in the hole of nut seat (1), and with socket head screw (2) mother nut (4) is fastenedly connected on nut seat (1), screw mandrel (3) is connected by the stepped tooth motion thread with mother nut (4), it is characterized in that: the secondary nut (6) that is connected by the stepped tooth motion thread also is housed on the screw mandrel (3), between mother nut (4) and secondary nut (6) Compress Spring (5) is housed, secondary nut (6) is connected with nut seat (1) by key (7).
2. spring pre-tightening double-nut lead-screw driving device according to claim 1, it is characterized in that: the internal diameter of described Compress Spring (5) should be greater than the external diameter of screw mandrel (3), and the external diameter of Compress Spring (5) should be less than the diameter of bore of nut seat (1).
3. spring pre-tightening double-nut lead-screw driving device according to claim 1 is characterized in that: described mother nut (4) stretches between the endoporus of the excircle part of nut seat (1) and nut seat (1) and adopts transition fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110286552 CN103016666A (en) | 2011-09-23 | 2011-09-23 | Spring pre-tightening dual-nut lead-screw transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110286552 CN103016666A (en) | 2011-09-23 | 2011-09-23 | Spring pre-tightening dual-nut lead-screw transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103016666A true CN103016666A (en) | 2013-04-03 |
Family
ID=47965607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110286552 Pending CN103016666A (en) | 2011-09-23 | 2011-09-23 | Spring pre-tightening dual-nut lead-screw transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016666A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942353A (en) * | 2014-03-31 | 2015-09-30 | 青岛青宏机械制造有限公司 | Workbench transmitting device of planer type milling machine |
| CN107716758A (en) * | 2017-10-30 | 2018-02-23 | 安徽德系重工科技有限公司 | The flexible feed device and its bending machine of a kind of bending machine |
| CN109973602A (en) * | 2019-04-28 | 2019-07-05 | 鲁东大学 | A kind of double nut base device for the adjustable preload of ball-screw |
-
2011
- 2011-09-23 CN CN 201110286552 patent/CN103016666A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942353A (en) * | 2014-03-31 | 2015-09-30 | 青岛青宏机械制造有限公司 | Workbench transmitting device of planer type milling machine |
| CN107716758A (en) * | 2017-10-30 | 2018-02-23 | 安徽德系重工科技有限公司 | The flexible feed device and its bending machine of a kind of bending machine |
| CN107716758B (en) * | 2017-10-30 | 2023-08-01 | 安徽德系重工科技有限公司 | Flexible feeding device of pipe bending machine and pipe bending machine thereof |
| CN109973602A (en) * | 2019-04-28 | 2019-07-05 | 鲁东大学 | A kind of double nut base device for the adjustable preload of ball-screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |