CN107178595B - A kind of disappear inter space device and method, screw pair for screw pair - Google Patents
A kind of disappear inter space device and method, screw pair for screw pair Download PDFInfo
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- CN107178595B CN107178595B CN201710453803.6A CN201710453803A CN107178595B CN 107178595 B CN107178595 B CN 107178595B CN 201710453803 A CN201710453803 A CN 201710453803A CN 107178595 B CN107178595 B CN 107178595B
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- gap
- nut
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- adjustment
- adjusting nut
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- 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
- F16H25/2003—Screw mechanisms with arrangements for taking up backlash
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention relates to a kind of feed screw nut auxiliary structures, a kind of more particularly to disappear inter space device and method, screw pair for screw pair, under the premise of eliminating the drive gap between lead screw and main nut, reduce the extrusion deformation between the thread of main nut and the thread of lead screw, between the thread of adjusting nut and the thread of lead screw.Screw pair includes lead screw and main nut, and the inter space device that disappears includes adjusting nut, adjustment bolt and tune gap bolt；Main nut and adjusting nut and lead screw are cooperatively connected, and have adjustment gap between main nut and adjusting nut；Adjustment bolt and main nut and adjusting nut are cooperatively connected, and gap bolt is adjusted to be against between adjusting nut and main nut.Screw pair includes the above-mentioned inter space device that disappears for screw pair.It is used to eliminate the drive gap between the lead screw of screw pair and main nut provided by the present invention for the inter space device that disappears of screw pair.
Description
Technical field
The present invention relates to a kind of feed screw nut auxiliary structure more particularly to it is a kind of for screw pair disappear inter space device and
Method, screw pair.
Background technique
Screw pair be it is a kind of convert linear motion for rotary motion, alternatively, by transform linear motion be revolution fortune
Dynamic structure, referring to Fig. 1, the main nut 2 for generally including lead screw 1 and being cooperatively connected with lead screw 1 is widely used in rudder on bullet
In the transmission systems such as machine, lathe.
But in long-term transmission process, material mill can be generated due to sliding friction, between lead screw 1 and main nut 2
Damage, so that generating drive gap between the two.It especially applies on steering gear machinery in the missile, the gap of screw pair can give power train
System causes dead zone, to influence the precision of the deflection angle of rudder face, or even will cause the problem of rudder face is seriously shaken.Therefore, usually
The inter space device that disappears can be set in the structure of screw pair, the service life and transmission essence of screw pair are improved with this
Degree.
In the structure of steering gear machinery in the missile, often require that drive system structure is simple, compact, it is therefore, existing to be used for bullet
The inter space device that disappears of steering engine generally includes adjusting nut 3 and adjustment bolt 4 referring to Fig. 1, and adjusting nut 3 and lead screw 1 cooperate
Connection, and there is adjustment gap between main nut 2, adjustment bolt 4 is cooperatively connected with main nut 2 and adjusting nut 3 respectively, leads to
It crosses and turns adjustment bolt 4, by main nut 2 and the opposite tension of adjusting nut 3, so that the adjustment between adjusting nut 3 and main nut 2
Gap shrinks, so as to eliminating the drive gap of lead screw 1 and main nut 2.
In the above-mentioned inter space device that disappears, since dynamics when tightening adjustment bolt 4 is often uncontrollable, such that main
It is squeezed and deformed, leads between the thread of nut 2 and the thread of lead screw 1, between the thread of adjusting nut 3 and the thread of lead screw 1
Screw pair is caused to can not work normally.Specifically, referring to fig. 2, in the thread of main nut 2 and the contact of the thread of lead screw 1
On the A of face, the thread of lead screw 1 will receive the extruding of the thread of main nut 2, in the thread of adjusting nut 3 and connecing for the thread of lead screw 1
On contacting surface B, the thread of lead screw 1 will receive the extruding of the thread of adjusting nut 3.
It is worth noting that, often locking measures are taken to adjustment bolt 4 in the case where steering gear machinery in the missile vibrates working environment,
For example, increasing elastic washer between the head and adjusting nut 3 of adjustment bolt 4.And when tightening adjustment bolt 4, elastic cushion
Circle deform caused by pretightning force be also it is uncontrollable, can aggravate between the thread of main nut 2 and the thread of lead screw 1, adjust in this way
It is squeezed and deformed between the thread of whole nut 3 and the thread of lead screw 1.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of disappear inter space device and method, silk for screw pair
Thick stick pair of nut reduces the thread of main nut and the spiral shell of lead screw under the premise of eliminating the drive gap between lead screw and main nut
Extrusion deformation between tooth, between the thread of adjusting nut and the thread of lead screw.
The purpose of the present invention is mainly achieved through the following technical solutions:
In a first aspect, screw pair includes silk the present invention provides a kind of inter space device that disappears for screw pair
Thick stick and main nut, the inter space device that disappears include adjusting nut and adjustment bolt；Main nut and adjusting nut cooperate with lead screw respectively to be connected
It connects, there is adjustment gap between main nut and adjusting nut；Adjustment bolt is cooperatively connected with main nut and adjusting nut respectively, uses
In reducing the adjustment gap between main nut and adjusting nut, which further includes adjusting gap bolt, and gap bolt is adjusted to be against
Between adjusting nut and main nut, for increasing the adjustment gap between main nut and adjusting nut.
Further, the quantity of adjustment bolt and the quantity of tune gap bolt are multiple；It is multiple along the circumferencial direction of lead screw
Adjustment bolt is evenly arranged, and multiple tune gap bolts are evenly arranged.
Further, multiple outer rims for adjusting gap bolt to be located at multiple adjustment bolts.
Further, the screw pitch of gap bolt is adjusted to be less than the screw pitch of adjustment bolt.
Further, the inter space device that disappears further includes the stop nut being cooperatively connected with tune gap bolt；Stop nut is for preventing
Only loosened between adjusting nut and tune gap bolt.
Further, the inter space device that disappears further includes the locking jackscrew being cooperatively connected with adjusting nut；One end of locking jackscrew
It is against and adjusts on gap bolt.
Further, the inter space device that disappears further includes the guide rail parallel with the axis of lead screw, guide rail respectively with main nut and tune
Whole nut is slidably connected.
Further, guide rail is equipped with scale.
On the other hand, the present invention also provides a kind of screw pairs, which is characterized in that screw pair includes above-mentioned use
In the inter space device that disappears of screw pair.
The third aspect, the present invention also provides a kind of gap approaches that disappear for screw pair, are used for silk using above-mentioned
The inter space device that disappears of thick stick pair of nut, when generating drive gap between lead screw and main nut, which includes following step
It is rapid: to tighten adjustment bolt, the adjustment gap between main nut and adjusting nut reduces；Unscrew and adjust gap bolt, so that adjusting gap bolt
The length screwed in adjusting nut reduces, and the adjustment gap between main nut and adjusting nut increases, so that adjustment gap subtracts
Small value is greater than or equal to the size of drive gap, completes the gap operating that disappears to screw pair.
Compared with prior art, the present invention has the beneficial effect that:
A) provided by the present invention for being equipped with adjustment bolt in the inter space device that disappears of screw pair and adjusting gap bolt, pass through
Both adjustment bolt and tune gap bolt cooperate, and adjustment gap can be adjusted to suitable size, thus, eliminating lead screw
Under the premise of drive gap between main nut, reduce between the thread of main nut and the thread of lead screw, the spiral shell of adjusting nut
Extrusion deformation between tooth and the thread of lead screw guarantees that screw pair bidirectionally, seamlessly, is swimmingly driven.
B) simple, compact provided by the present invention for the inter space device structure that disappears of screw pair, it is particularly suitable on bullet
The requirement of the transmission system of steering engine.
C) provided by the present invention in the inter space device that disappears of screw pair, multiple equally distributed adjustment bolts and more
A equally distributed tune gap bolt cooperates, so that main nut and adjusting nut are more equal along the stress of the circumferencial direction of lead screw
It is even, so that the size in adjustment gap adjusted is essentially identical along the circumferencial direction of lead screw.
D) it is equipped with scale provided by the present invention for the guide rail of the inter space device that disappears of screw pair, it can will be between adjustment
The adjusting of gap is improved to quantitatively, realize the accurate adjusting in adjustment gap, fundamentally avoid the thread and silk of main nut from qualitative
Between the thread of thick stick, the problem of extrusion deformation between the thread of adjusting nut and the thread of lead screw.
E) it is equipped with adjustment bolt in the inter space device that disappears for the screw pair that example of the present invention provides and adjusts gap bolt, passes through tune
Whole bolt and both gap bolts is adjusted to cooperate, adjustment gap can be adjusted to suitable size, thus, eliminate lead screw with
Under the premise of drive gap between main nut, reduce between the thread of main nut and the thread of lead screw, the thread of adjusting nut
Extrusion deformation between the thread of lead screw guarantees that screw pair bidirectionally, seamlessly, is swimmingly driven.
Other features and advantages of the present invention will illustrate in the following description, also, partial become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is the structural schematic diagram of the gap dress that disappears in the prior art for screw pair；
Fig. 2 be it is in the prior art for screw pair disappear gap dress in main nut thread and lead screw thread it
Between, the cooperation schematic diagram of the thread of the thread of adjusting nut and lead screw；
Fig. 3 is the structural schematic diagram of the gap dress that disappears for screw pair of the embodiment of the present invention one.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention.
Embodiment one
A kind of inter space device that disappears for screw pair is present embodiments provided, referring to Fig. 3, screw pair includes silk
Thick stick 1 and main nut 2, the inter space device that disappears include adjusting nut 3, adjustment bolt 4 and tune gap bolt 5.Wherein, main nut 2 and adjustment
Nut 3 is cooperatively connected with lead screw 1 respectively, and has adjustment gap between main nut 2 and adjusting nut 3；Adjustment bolt 4 respectively with
Main nut 2 and adjusting nut 3 are cooperatively connected, for reducing the adjustment gap between main nut 2 and adjusting nut 3；Adjust gap bolt 5
It is against between main nut 2 and adjusting nut 3, for increasing the adjustment gap between main nut 2 and adjusting nut 3.
It, can be by tightening adjustment bolt 4, so that main nut 2 when generating drive gap between lead screw 1 and main nut 2
Adjustment gap between adjusting nut 3 reduces, so that main nut 2 and adjusting nut 3 be tensed；Then, unscrew and adjust gap bolt
5, the screw-in depth of gap bolt 5 is adjusted in fine tuning, so that the adjustment gap between main nut 2 and adjusting nut 3 increases, thus by above-mentioned
Adjustment gap is adjusted to suitable size, under the premise of eliminating the drive gap between lead screw 1 and main nut 2, reduces main spiral shell
Extrusion deformation between the thread of mother 2 and the thread of lead screw 1, between the thread of adjusting nut 3 and the thread of lead screw 1.
Compared with prior art, adjustment bolt is equipped in the inter space device that disappears provided in this embodiment for screw pair
4, it is additionally provided with for reducing the adjustment gap between main nut 2 and adjusting nut 3, also, in the above-mentioned inter space device that disappears and adjusts gap spiral shell
Bolt 5 by adjusting bolt 4 and adjusts 5 the two of gap bolt mutually for increasing the adjustment gap between main nut 2 and adjusting nut 3
Cooperation, can be adjusted to suitable size for above-mentioned adjustment gap, thus, between eliminating the transmission between lead screw 1 and main nut 2
Under the premise of gap, reduce between the thread of main nut 2 and the thread of lead screw 1, the thread of the thread of adjusting nut 3 and lead screw 1 it
Between extrusion deformation, guarantee screw pair bidirectionally, seamlessly, be swimmingly driven.
Meanwhile the structure of the above-mentioned inter space device that disappears is simple, compact, is particularly suitable for wanting for the transmission system of steering gear machinery in the missile
It asks.
It should be noted that the amplitude that adjustment gap reduces will be far longer than during the adjustment in above-mentioned adjustment gap
The amplitude of increase using tune gap bolt 5 is finely adjusted to adjustment gap, that is to say, that after using the above-mentioned inter space device that disappears,
Adjustment gap between main nut 2 and adjusting nut 3 is actually to reduce.
Specifically, main nut 2 and adjusting nut 3 can be two mutually independent components；Certainly, main nut 2 and tune
Whole nut 3 can also be integrally formed, by the way that notch is arranged on nut, so that the nut is divided into main nut 2 and adjusting nut
3。
In order to keep the structure of screw pair more compact, the size in above-mentioned adjustment gap is 2 μm~4 μm.Due to both may be used
To meet the requirement to drive gap is eliminated, the compactedness of the structure of screw pair can also be improved.
For adjusting the mounting means of gap bolt 5, there can be following two.One of mounting means is to adjust gap bolt 5
One end is against the surface opposite with adjusting nut 3 of main nut 2, and other end adjusting nut 3 is cooperatively connected；Another mounting means
To adjust one end of gap bolt 5 to be against the surface opposite with main nut 2 of adjusting nut 3, other end main nut 2 is cooperatively connected.
In order to make main nut 2 and adjusting nut 3 being more uniformly stressed along the circumferencial direction of lead screw 1, the number of adjustment bolt 4
Amount and the quantity of tune gap bolt 5 all can be multiple, and along the circumferencial direction of lead screw 1, multiple adjustment bolts 4 are evenly arranged, more
A tune gap bolt 5 is evenly arranged.In this way, multiple equally distributed adjustment bolts 4 and multiple equally distributed tune gap bolts 5 are mutual
Cooperation, so that main nut 2 and adjusting nut 3 are more uniformly stressed along the circumferencial direction of lead screw 1, so that along lead screw 1
The size of circumferencial direction, adjustment gap adjusted is essentially identical.
Multiple outer rims for adjusting gap bolt 5 to be located at multiple adjustment bolts 4 for operating easily,.This is because in adjustment gap
Adjustment during, it is necessary first to tighten adjustment bolt 4, then unscrew again adjust gap bolt 5, by adjust gap bolt 5 be set to adjustment
The outer rim of bolt 4, so that operation is more convenient, it is easier to control adjustment bolt 4 and gap bolt 5 is adjusted to tighten dynamics, raising is exchanged
The accuracy of whole gap adjustment.
It is considered that adjustment bolt 4 is to adjust gap for being dramatically reduced, and adjusting gap bolt 5 is for by a small margin
Increase adjustment gap, adjusts the screw pitch of gap bolt 5 that can be less than the screw pitch of adjustment bolt 4, for example, the screw pitch of adjustment bolt 4 is
0.50mm~0.80mm, adjusting the screw pitch of gap bolt 5 is 0.20mm~0.45mm.In this way, in adjustment bolt 4 and gap bolt 5 is adjusted to twist
In the case where dynamic same number of turns, the amplitude that adjustment gap reduces is greater than the amplitude of increase, is more easier control adjustment gap
Size.
Gap bolt 5 is adjusted to loosen in use in order to prevent, the above-mentioned inter space device that disappears can also include locking spiral shell
Mother 6, stop nut 6 and tune gap bolt 5 are cooperatively connected, and loosen between gap bolt 5 for preventing adjusting nut 3 and adjusting.
Certainly, in order to further prevent that gap bolt 5 is adjusted to loosen in use, can also in stop nut 6 and
Lock washer 7 is set between adjusting nut 3.
Also for adjusting gap bolt 5 to loosen in use, the inter space device that disappears can also include locking jackscrew
8, locking jackscrew 8 is cooperatively connected with adjusting nut 3, and one end of locking jackscrew 8 is against and adjusts on gap bolt 5.
Specifically, the axis of locking jackscrew 8 can increase locking jackscrew 8 perpendicular to the axis for adjusting gap bolt 5 as much as possible
Contact area with gap bolt 5 is adjusted, improves frictional force between the two, further prevents adjusting nut 3 and adjusts between gap bolt 5
It loosens.
In addition, the above-mentioned inter space device that disappears further includes the guide rail 9 parallel with the axis of lead screw 1, guide rail 9 respectively with main nut 2
It is slidably connected with adjusting nut 3, so that the structure for the inter space device that disappears is more compact.
In order to improve the accuracy of adjustment gap adjustment, it can be equipped with scale 10 on the rail 9.It in this way can will be between adjustment
The adjusting of gap is improved to quantitatively, realize the accurate adjusting in adjustment gap, fundamentally avoid the thread and silk of main nut 2 from qualitative
Between the thread of thick stick 1, take liberties with the problem of being squeezed and deformed between the thread of nut 3 and the thread of lead screw 1.
Embodiment two
Present embodiments provide a kind of screw pair comprising embodiment one provide between the disappearing of screw pair
Gap device.
Compared with prior art, the inter space device that disappears in screw pair provided in this embodiment is equipped with adjustment bolt, uses
Adjustment gap between reduction main nut and adjusting nut, also, be additionally provided in the above-mentioned inter space device that disappears and adjust gap bolt, it is used for
Increase the adjustment gap between main nut and adjusting nut, by adjusting bolt and both adjusts gap bolt and cooperate, it can will
Above-mentioned adjustment gap is adjusted to suitable size, thus, under the premise of eliminating the drive gap between lead screw and main nut, subtract
Extrusion deformation between the thread of small main nut and the thread of lead screw, between the thread of adjusting nut and the thread of lead screw guarantees
Screw pair bidirectionally, seamlessly, is swimmingly driven.
Meanwhile the structure structure of above-mentioned screw pair is simple, compact, is particularly suitable for the requirement of steering engine transmission system.
Specifically, in order to be further applicable to steering engine transmission system, the diameter of main nut can be 15mm~25mm, adjustment
The diameter of nut can be 15mm~25mm.
Embodiment three
A kind of gap approaches that disappear for screw pair are present embodiments provided, lead screw is used for using embodiment one kind
The inter space device that disappears of pair of nut, when generating drive gap between lead screw and main nut, which includes the following steps:
Adjustment bolt is tightened, the adjustment gap between main nut and adjusting nut reduces；Unscrew and adjust gap bolt, so that gap bolt is adjusted to screw in
Length in adjusting nut reduces, and the adjustment gap between main nut and adjusting nut increases, so that the decreasing value in adjustment gap
More than or equal to the size of drive gap, the gap operating that disappears to screw pair is completed.
Specifically, the above-mentioned gap approaches that disappear for screw pair include following method:
S1: according to the size of the drive gap between lead screw and main nut and the scale of scale, the circle along lead screw is tightened
Multiple adjustment bolts that circumferential direction is evenly arranged adjust gap so that the adjustment gap between main nut and adjusting nut reduces
Decreasing value be greater than drive gap size；
S2: unscrewing the multiple tune gap bolts being evenly arranged along the circumferencial direction of lead screw, so that gap bolt is adjusted to screw in adjustment spiral shell
Length in mother reduces, and the adjustment gap between main nut and adjusting nut increases, and passes so that the decreasing value in adjustment gap is equal to
The size in dynamic gap；
S3: tightening stop nut and locking jackscrew, prevents from adjusting nut and adjusts to loosen between gap bolt, complete to silk
The gap operating that disappears of thick stick pair of nut.
It is understood that may be implemented to eliminate lead screw when the decreasing value for adjusting gap is equal to the size of drive gap
Drive gap between main nut guarantees that screw pair bidirectionally, seamlessly, is swimmingly driven, and in main nut
It will not be squeezed and deformed completely between thread and the thread of lead screw, between the thread of adjusting nut and the thread of lead screw.
Compared with prior art, the beneficial effect Yu above-mentioned use of the gap approaches that disappear of screw pair provided in this embodiment
Identical in the beneficial effect of the inter space device that disappears of screw pair, details are not described herein.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of inter space device that disappears for screw pair, the screw pair includes lead screw and main nut, it is described disappear between
Gap device includes adjusting nut and adjustment bolt；The main nut and the adjusting nut are cooperatively connected with the lead screw respectively,
There is adjustment gap between the main nut and the adjusting nut；The adjustment bolt respectively with the main nut and the tune
Whole nut is cooperatively connected, for reducing the adjustment gap between the main nut and the adjusting nut, which is characterized in that described
The inter space device that disappears further includes adjusting gap bolt, and the tune gap bolt is against between the adjusting nut and the main nut, for increasing
Adjustment gap between the big main nut and the adjusting nut；
The screw pitch for adjusting gap bolt is less than the screw pitch of the adjustment bolt；
The inter space device that disappears further includes the stop nut being cooperatively connected with the tune gap bolt；
The stop nut is for preventing from loosening between the adjusting nut and the tune gap bolt；
The inter space device that disappears further includes the locking jackscrew being cooperatively connected with the adjusting nut；
One end of the locking jackscrew is against on the tune gap bolt；
The inter space device that disappears further includes the guide rail parallel with the axis of the lead screw, the guide rail respectively with the main nut and
The adjusting nut is slidably connected；The guide rail is equipped with scale.
2. the inter space device that disappears according to claim 1 for screw pair, which is characterized in that the adjustment bolt
Quantity and the quantity for adjusting gap bolt are multiple；
Along the circumferencial direction of the lead screw, multiple adjustment bolts are evenly arranged, and multiple tune gap bolts are evenly arranged.
3. the inter space device that disappears according to claim 1 for screw pair, which is characterized in that multiple tune gap bolts position
In the outer rim of multiple adjustment bolts.
4. a kind of screw pair, which is characterized in that the screw pair includes as described in any one of claims 1 to 3
The inter space device that disappears for screw pair.
5. a kind of gap approaches that disappear for screw pair, which is characterized in that using as described in any one of claims 1 to 3
The inter space device that disappears for screw pair, when between the lead screw and the main nut generate drive gap when, it is described to disappear
Gap approaches include the following steps:
The adjustment bolt is tightened, the adjustment gap between the main nut and adjusting nut reduces；Unscrew the tune gap bolt,
So that the tune gap bolt screws in the reduction of the length in the adjusting nut, the tune between the main nut and the adjusting nut
Whole gap increases, so that the decreasing value in adjustment gap is greater than or equal to the size of drive gap, completes to the screw pair
The gap operating that disappears；
Specific steps are as follows:
S1: it according to the size of the drive gap between lead screw and main nut and the scale of scale, tightens along the circumference side of lead screw
To the multiple adjustment bolts being evenly arranged, so that the adjustment gap between main nut and adjusting nut reduces, subtracting for gap is adjusted
Small value is greater than the size of drive gap；
S2: unscrewing the multiple tune gap bolts being evenly arranged along the circumferencial direction of lead screw, so that gap bolt is adjusted to screw in adjusting nut
Length reduce, adjustment gap between main nut and adjusting nut increases, so that the decreasing value in adjustment gap is equal between transmission
The size of gap；
S3: tightening stop nut and locking jackscrew, prevents from adjusting nut and adjusts to loosen between gap bolt, complete to lead screw spiral shell
Female secondary gap operating that disappears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453803.6A CN107178595B (en) | 2017-06-15 | 2017-06-15 | A kind of disappear inter space device and method, screw pair for screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453803.6A CN107178595B (en) | 2017-06-15 | 2017-06-15 | A kind of disappear inter space device and method, screw pair for screw pair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107178595A CN107178595A (en) | 2017-09-19 |
| CN107178595B true CN107178595B (en) | 2019-07-12 |
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ID=59835365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710453803.6A Active CN107178595B (en) | 2017-06-15 | 2017-06-15 | A kind of disappear inter space device and method, screw pair for screw pair |
Country Status (1)
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE171252C (en) * | ||||
| DE846647C (en) * | 1950-08-05 | 1952-08-14 | Hermann Ziegler | Self-adjustable threaded nut |
| GB884914A (en) * | 1959-06-26 | 1961-12-20 | British Oxygen Co Ltd | Motion transmission mechanism of the screw and nut type |
| DE59401898D1 (en) * | 1993-08-24 | 1997-04-10 | Eichenberger Gewinde Ag | Low backlash nut for screw gears |
| CN203656087U (en) * | 2014-01-02 | 2014-06-18 | 上海理工大学 | Double-nut ball screw pair capable of accurately adjusting pre-tightening force |
| CN203770605U (en) * | 2014-03-07 | 2014-08-13 | 中冶南方工程技术有限公司 | Helical gear pair transmission lateral clearance adjusting device |
| CN206221597U (en) * | 2016-11-07 | 2017-06-06 | 上海北昂医药科技股份有限公司 | The gap that disappears nut structure |
-
2017
- 2017-06-15 CN CN201710453803.6A patent/CN107178595B/en active Active
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