CN201392477Y - Accurate displacement adjusting device - Google Patents
Accurate displacement adjusting device Download PDFInfo
- Publication number
- CN201392477Y CN201392477Y CN200920040449U CN200920040449U CN201392477Y CN 201392477 Y CN201392477 Y CN 201392477Y CN 200920040449 U CN200920040449 U CN 200920040449U CN 200920040449 U CN200920040449 U CN 200920040449U CN 201392477 Y CN201392477 Y CN 201392477Y
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- China
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- nut
- screw
- screw rod
- displacement
- threads
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- Expired - Lifetime
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Abstract
An accurate displacement adjusting device is provided two threads on a screw rod, and the two threads are in the same screw direction and have unequal screw pitches, two nuts matched with the threads are respectively mounted on the two threads, the fixed nut is matched with the thread with large screw pitch, the other nut is a movable nut capable of moving axially. When the screw rod rotates in a circle, the screw rod generates an axial distance with large screw pitch relative to the fixed nut; meanwhile, the movable nut generates an axial distance with small screw pitch relative to the screw rod in reverse direction so that the displacement of the movable nut relative to the fixed nut is equal to the screw pitch difference of the two threads. Besides, the movable nut is also coordinated with an adjusting hand wheel, and n grids are arranged on the scale panel of the adjusting hand wheel; when the adjusting hand wheel rotates in a grid, the displacement of the movable nut is 1/n of the difference of the two screw pitches. The accurate displacement adjusting device has simple structure, easy manufacturing and high displacement control accuracy.
Description
Technical field
The utility model relates to the accurate regulating device of a kind of governor motion of plant equipment, particularly a kind of displacement.
Background technology
In the prior art, feed screw nut's structure, worm and gear structure etc. are generally adopted in the adjusting of plant equipment displacement, can not accurately regulate.And its complex structure of equipment with accurate regulatory function, cost is very high again.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, has proposed a kind of accurate regulating device of simple in structure, displacement that cost performance is high.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of accurate regulating device of displacement, be characterized in: on a screw rod, be provided with two sections identical, unequal screw threads of pitch of rotation direction, on two sections screw threads two nuts that are mated are housed respectively, with the nut of the big threaded engagement of pitch be hold-down nut, another nut is for moving axially nut.
The technical problems to be solved in the utility model can also come to realize that further hold-down nut is fixed on the frame, is provided with radially anti-rotation stop means of travelling nut on frame by the following technical programs.
The technical problems to be solved in the utility model can also come to realize that further in the end of screw rod control hand wheel is housed, control hand wheel is provided with the scale dial plate by the following technical programs.
The utility model compared with prior art, screw rod rotates a week, screw rod produces the axial distance of a coarse pitch with respect to hold-down nut, travelling nut is with respect to the axial distance of a rightabout fine pitch of screw rod generation simultaneously, and travelling nut equals the pitch difference of two sections screw threads with respect to the displacement of hold-down nut like this.Cooperate with control hand wheel simultaneously, n lattice are set on the scale dial plate of control hand wheel, the control hand wheel revolution moves lattice, and the displacement that travelling nut produces is exactly the 1/n of two pitch differences.It is simple in structure, easy to manufacture, displacement control accuracy height.
Description of drawings
Fig. 1 is a structure diagram of the present utility model.
Embodiment
A kind of accurate regulating device of displacement, on a screw rod, be provided with two sections identical, unequal screw threads of pitch of rotation direction, on two sections screw threads two nuts that are mated are housed respectively, with the nut of the big threaded engagement of pitch be hold-down nut, another nut is for moving axially nut.Hold-down nut is fixed on the frame, is provided with radially anti-rotation stop means of travelling nut on frame.Radially the anti-rotation stop means can be provided in a side of the anti-rotation pin of travelling nut side; Also can be that travelling nut directly is connected with the parts that need to regulate, the parts that need to regulate be contained on the slideway accordingly.Control hand wheel is equipped with in end at screw rod, and control hand wheel is provided with the scale dial plate.
As scheming: mechanism is by scale handwheel 1, screw rod locking handwheel 2, screw rod 3, hold-down nut 4, support 5, travelling nut 6, anti-rotation pin 7, fine setting screw rod 8 and need the parts 9 of adjusting to form.
Principle of work: rotate dial plate handwheel 1 together with screw rod 3, rotational fixation nut 4 is fixed on the support 5, and screw rod 3 moves axially.Travelling nut 6 and screw rod 3 move as reverse direction.Suppose that screw rod 3 differs 0.5mm in the pitch at hold-down nut 4 places and the pitch at travelling nut 6 places, dial plate handwheel dial scale is 50 lattice, the displacement-adjustable amount of then rotating lattice be two pitch differ 1/50, promptly its adjustable precision is 0.01mm.Degree of regulation is very meticulous, has reached the purpose that improves degree of regulation.
Claims (3)
1. the accurate regulating device of a displacement, it is characterized in that: on a screw rod, be provided with two sections identical, unequal screw threads of pitch of rotation direction, on two sections screw threads two nuts that are mated are housed respectively, with the nut of the big threaded engagement of pitch be hold-down nut, another nut is for moving axially nut.
2. the accurate regulating device of displacement according to claim 1, it is characterized in that: hold-down nut is fixed on the frame, is provided with radially anti-rotation stop means of travelling nut on frame.
3. the accurate regulating device of displacement according to claim 1, it is characterized in that: control hand wheel is equipped with in the end at screw rod, and control hand wheel is provided with the scale dial plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920040449U CN201392477Y (en) | 2009-04-23 | 2009-04-23 | Accurate displacement adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920040449U CN201392477Y (en) | 2009-04-23 | 2009-04-23 | Accurate displacement adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392477Y true CN201392477Y (en) | 2010-01-27 |
Family
ID=41599297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920040449U Expired - Lifetime CN201392477Y (en) | 2009-04-23 | 2009-04-23 | Accurate displacement adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392477Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901013A (en) * | 2010-06-30 | 2010-12-01 | 深圳市润天智图像技术有限公司 | Distance adjusting mechanism |
| CN102591368A (en) * | 2012-03-15 | 2012-07-18 | 无锡瑞迪声科技有限公司 | Anti-interference accurate nanometer displacement trigger |
| CN102580911A (en) * | 2012-02-20 | 2012-07-18 | 集美大学 | Circumferential positioning screw thread connection device for ultrasonic tool |
| CN102991956A (en) * | 2012-10-17 | 2013-03-27 | 苏州一致电子制程有限公司 | Conveyor belt adjusting device |
| CN103061757A (en) * | 2013-02-04 | 2013-04-24 | 侯如升 | Device for adjusting tunneling head of coal mine heading machine |
| CN107931028A (en) * | 2017-12-28 | 2018-04-20 | 北京航天新风机械设备有限责任公司 | A kind of fastener adds glue metal needle tubing |
| CN108172086A (en) * | 2018-01-21 | 2018-06-15 | 延安大学 | The reflected refraction demonstration Self-made Realia of light |
| CN108413952A (en) * | 2017-12-14 | 2018-08-17 | 北京航天控制仪器研究所 | Hemispherical resonator mode axis and quality factor detection device |
| CN112436673A (en) * | 2020-12-03 | 2021-03-02 | 大连交通大学 | Magnetic stepless speed regulator for differentially adjusting magnetic gap |
| CN113500443A (en) * | 2021-07-16 | 2021-10-15 | 张家港跃邦机械有限公司 | Feed mechanism for chipless cutting machine |
-
2009
- 2009-04-23 CN CN200920040449U patent/CN201392477Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901013A (en) * | 2010-06-30 | 2010-12-01 | 深圳市润天智图像技术有限公司 | Distance adjusting mechanism |
| CN101901013B (en) * | 2010-06-30 | 2012-11-14 | 深圳市润天智数字设备股份有限公司 | Distance adjusting mechanism |
| CN102580911A (en) * | 2012-02-20 | 2012-07-18 | 集美大学 | Circumferential positioning screw thread connection device for ultrasonic tool |
| CN102580911B (en) * | 2012-02-20 | 2014-12-31 | 集美大学 | Circumferential positioning screw thread connection device for ultrasonic tool |
| CN102591368A (en) * | 2012-03-15 | 2012-07-18 | 无锡瑞迪声科技有限公司 | Anti-interference accurate nanometer displacement trigger |
| CN102991956A (en) * | 2012-10-17 | 2013-03-27 | 苏州一致电子制程有限公司 | Conveyor belt adjusting device |
| CN103061757B (en) * | 2013-02-04 | 2014-10-22 | 侯如升 | Device for adjusting tunneling head of coal mine heading machine |
| CN103061757A (en) * | 2013-02-04 | 2013-04-24 | 侯如升 | Device for adjusting tunneling head of coal mine heading machine |
| CN108413952A (en) * | 2017-12-14 | 2018-08-17 | 北京航天控制仪器研究所 | Hemispherical resonator mode axis and quality factor detection device |
| CN107931028A (en) * | 2017-12-28 | 2018-04-20 | 北京航天新风机械设备有限责任公司 | A kind of fastener adds glue metal needle tubing |
| CN108172086A (en) * | 2018-01-21 | 2018-06-15 | 延安大学 | The reflected refraction demonstration Self-made Realia of light |
| CN108172086B (en) * | 2018-01-21 | 2021-11-09 | 延安大学 | Self-made teaching aid for demonstrating light reflection and refraction |
| CN112436673A (en) * | 2020-12-03 | 2021-03-02 | 大连交通大学 | Magnetic stepless speed regulator for differentially adjusting magnetic gap |
| CN113500443A (en) * | 2021-07-16 | 2021-10-15 | 张家港跃邦机械有限公司 | Feed mechanism for chipless cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |