CN108119625A - Screw nut driving mechanism - Google Patents
Screw nut driving mechanism Download PDFInfo
- Publication number
- CN108119625A CN108119625A CN201611068876.5A CN201611068876A CN108119625A CN 108119625 A CN108119625 A CN 108119625A CN 201611068876 A CN201611068876 A CN 201611068876A CN 108119625 A CN108119625 A CN 108119625A
- Authority
- CN
- China
- Prior art keywords
- nut
- hole
- screw
- section
- driving mechanism
- 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.)
- Pending
Links
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
- F16H25/2003—Screw mechanisms with arrangements for taking up backlash
- F16H25/2006—Screw mechanisms with arrangements for taking up backlash with more than one nut or with nuts consisting of more than one bearing part
-
- 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
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a kind of screw nut driving mechanism, including：Nut seat, first nut, the second nut, screw and latch assembly, nut seat has first through hole, first nut and the second nut are installed on nut seat, screw is passed through from the first nut and the second nut and coordinated with two nut threads, at least one nut in first nut and the second nut is adjustable along first through hole axial position, and latch assembly locks at least one nut compared with nut seat.Screw nut driving mechanism according to the present invention can adjust screw and the fit clearance of the first nut and the second nut, the convenient adjustment to fit clearance by adjusting the relative position of the first nut and the second nut.
Description
Technical field
The present invention relates to technical field of mechanical transmission, specifically, more particularly to a kind of screw nut driving mechanism.
Background technology
Screw nut driving mechanism be it is a kind of be widely used general machine components, main function is by convert rotational motion
For linear motion.Since the later abrasion of the mismachining tolerance and longtime running of screw and nut can cause screw and nut
Cooperation generates gap, and screw and nut are just must be added in the machinery higher to screw and nut drive position required precision
The adjustment mechanism in gap, at present through frequently with adjustment mechanism be spring compression adjustment mechanism, forced using the elasticity of spring
Tight two nuts are so as to eliminating its fit clearance.Spring compression adjustment mechanism make use of the elastic force of spring, if in use
Its gap there is also when the driving force of feed screw nut has been more than the elastic force of spring, it is possible to its gap adjustment function be caused to lose
Effect.And the elastic force of spring can not design it is very big, the screw that larger spring pressure can make with nut generation is very big rubs
Resistance is wiped, the abrasion but also its transmission efficiency for not only exacerbating feed screw nut can also substantially reduce.
The content of the invention
It is contemplated that one of above-mentioned technical problem of the prior art is solved at least to a certain extent.For this purpose, this hair
A bright purpose is to propose a kind of with the screw nut driving mechanism easy to adjust to the fit clearance of screw and nut.
The screw nut driving mechanism provided according to the present invention, including：Nut seat, the first nut, the second nut, screw and
Latch assembly, the nut seat have first through hole, and first nut and second nut are installed on the nut seat,
The screw is passed through from the first nut and the second nut and coordinated with described two nut threads, first nut and second
At least one nut in nut is adjustable along the first through hole axial position, and the latch assembly is by least one nut
It is locked compared with the nut seat, nut seat is equipped with second through hole orthogonal with the first through hole.
Screw nut driving mechanism according to an embodiment of the invention, can be by adjusting the first nut and the second nut
Relative position adjusts screw and the fit clearance of the first nut and the second nut, can by different use demands at least one
The position of a nut is adjusted, and is obtained different fit clearances, is locked after the completion of adjustment by latch assembly, after adjustment
All components are to rigidly fix, as long as screw rod transmission power is not more than system destruction power, fit clearance is from driving force size
Influence, the convenient adjustment to fit clearance.
In addition, screw nut driving mechanism according to the above embodiment of the present invention can also have following additional technology spy
Sign：According to one embodiment of present invention, the first through hole includes first through hole section and the second through hole section, the first through hole
To be non-circular, the cross section of second through hole section is circle for the cross section of section, the cross section of the inner end of first nut with
The cross-section adaptation of the first through hole section and cooperation is in the first through hole section, the inner end of second nut coordinates in institute
It states in the second through hole section.
According to one embodiment of present invention, the cross section of the first through hole section and first nut is rectangle.
According to one embodiment of present invention, the nut seat is equipped with first around the outer end of the first through hole section
Annular convex platform and the second annular convex platform around the outer end of second through hole section.
According to one embodiment of present invention, first nut compared with the nut seat the first through hole week
Fixed upwards, second nut is adjustable in the axial position of the first through hole compared with the nut seat.
According to one embodiment of present invention, the latch assembly includes lock sleeve and lock-screw, second annular
Boss has screw hole, and the lock sleeve is sleeved on second nut and second annular convex platform, the second nut edge
The circumferentially opposed of the first through hole is fixed in the lock sleeve and along the axially movable of the first through hole, the locking screw
Nail is through lock sleeve cooperation in the screw hole.
According to one embodiment of present invention, the lock sleeve has outer end wall, and the outer end wall has non-circular match somebody with somebody
Hole is closed, it is non-circular auxiliary section that the outer end of second nut, which is equipped with cross section, and the auxiliary section cooperation is in the matching hole
It is interior.
According to one embodiment of present invention, the cross section of the matching hole and the auxiliary section is rectangle.
According to one embodiment of present invention, the lock sleeve is equipped with the slotted hole circumferentially extended along the lock sleeve,
The lock-screw coordinates through the slotted hole in the screw hole.
According to one embodiment of present invention, the slotted hole is along the circumferentially spaced multiple of the lock sleeve.
According to one embodiment of present invention, any one in first nut and second nut includes：This
Body portion；The head being connected with the body part, the radial dimension on the head are more than the radial dimension of the body part.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains substantially or is recognized by the practice of the present invention.
Description of the drawings
Fig. 1 is the structure diagram of screw nut driving mechanism according to an embodiment of the invention；
Fig. 2 is the perspective exploded view of screw nut driving mechanism according to an embodiment of the invention；
Fig. 3 is the stereogram of the nut seat of screw nut driving mechanism according to an embodiment of the invention；
Fig. 4 is the stereogram of the nut seat of another angle of screw nut driving mechanism according to an embodiment of the invention；
Fig. 5 is the sectional view of the nut seat of screw nut driving mechanism according to an embodiment of the invention；
Fig. 6 is the front view of the lock sleeve of screw nut driving mechanism according to an embodiment of the invention；
Fig. 7 is along the sectional view in A-A directions in Fig. 6.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplified description rather than instruction imply that signified device or element must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
It can be contacted directly including the first and second features, it is not to contact directly but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper or is merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include fisrt feature immediately below second feature and obliquely downward or be merely representative of
Fisrt feature level height is less than second feature.
As shown in Figs. 1-5, screw nut driving mechanism 100 according to an embodiment of the invention, including：Nut seat 10, the
One nut 20, the second nut 30, screw 40 and latch assembly 50.
Specifically, nut seat 10 can have first through hole 101, and the first nut 20 and the second nut 30 are installed to nut
On seat 10, screw 40 is passed through from the first nut 20 and the second nut 30 and coordinated with described two nut threads.In other words,
One nut 20 and the second nut 30 are connected to the both ends of nut seat 10, and screw 40 can sequentially pass through the first nut 20, spiral shell
10 and second nut 30 of female seat, and 40 and first nut 20 of screw and 30 thread fitting of the second nut.First nut 20 and second
At least one nut in nut 30 is adjustable along 101 axial position of first through hole, and latch assembly 50 is opposite by least one nut
It is locked in nut seat 10, nut seat 10 is equipped with second through hole 102 orthogonal with first through hole 101.
Screw nut driving mechanism 100 according to an embodiment of the invention, can be by adjusting the first nut 20 and second
The relative position of nut 30 adjusts the fit clearance of 10 and first nut 20 of screw and the second nut 30, can make by different
The position of at least one nut is adjusted with demand, different fit clearances is obtained, passes through latch assembly after the completion of adjustment
50 are locked, and all components are to rigidly fix after adjustment, as long as screw rod transmission power is not more than system destruction power, between cooperation
Gap is from the influence of driving force size, the convenient adjustment to fit clearance.
As shown in Figure 2-5, according to one embodiment of present invention, first through hole 101 includes first through hole section 1011 and the
Two through hole sections 1012, the cross section of first through hole section 1011 is non-circular, for example, an as shown in figure 3, reality according to the present invention
Example is applied, the cross section of first through hole section 1011 is substantially rectangular in cross section.As shown in figure 4, the cross section of the second through hole section 1012 is circle,
The cross section of the inner end of first nut 20 is with the cross-section adaptation of first through hole section 1011 and cooperation is in first through hole section 1101,
The inner end of second nut 30 coordinates in the second through hole section 1012.Thus, it is possible to convenient for the first nut 20 and the second nut 30 with
The connection of nut seat 10, positioning are more accurate.Further, the cross section of 1101 and first nut 20 of first through hole section can be equal
For rectangle.
As in Figure 3-5, according to one embodiment of present invention, nut seat 10 is equipped with around first through hole section 1011
The first annular boss 11 of outer end and the second annular convex platform 12 around the outer end of the second through hole section 1012.First is set as a result,
11 and second annular convex platform 12 of annular convex platform can assemble in order to nut seat 10 and the first nut 20 and the second nut 30.
As shown in Figs. 1-2, according to one embodiment of present invention, the first nut 20 compared with nut seat 10 in first through hole
Fixed in 101 circumferential direction, the second nut 30 is adjustable in the axial position of first through hole 101 compared with nut seat 10.Thus, it is possible to
It can be realized by adjusting the position of the second nut 30 to the gap tune between 40 and first nut 20 of screw rod and the second nut 30
It is whole.
As shown in Figs. 1-2, according to one embodiment of present invention, latch assembly 50 includes lock sleeve 51 and lock-screw
52, the second annular convex platform 12 has screw hole 13, and lock sleeve 51 is sleeved on the second nut 30 and the second annular convex platform 12, the second spiral shell
Mother 30 fixes and along axially movable, the lock-screw of first through hole 101 along the circumferentially opposed of first through hole 101 in lock sleeve 51
52 coordinate through lock sleeve 51 in screw hole 13.As a result, after gap is adjusted by adjusting the position of the second nut 30
Second nut 30 can be fixed on to precalculated position, after the second nut 30 is fixed, with nut seat 10 to rigidly fix, use process
It is relatively reliable.
As shown in Fig. 2, Fig. 6-7, according to one embodiment of present invention, lock sleeve 51 has outer end wall 511, outer end wall
511 have non-circular matching hole 512, and the outer end of the second nut 30 is equipped with cross section as non-circular auxiliary section 31, auxiliary section
31 cooperations are in matching hole 512.It as a result, can be to the opposite of the second nut 30 by the cooperation of auxiliary section 31 and matching hole 512
Axial rotation with nut seat 10 is fixed.According to one embodiment of present invention, matching hole 512 and auxiliary section is transversal
Face can be rectangle or regular hexagon.
As shown in fig. 6, according to one embodiment of present invention, lock sleeve 51 is equipped with the length circumferentially extended along lock sleeve 51
Circular hole 513, lock-screw 52 coordinate through slotted hole 513 in screw hole 13.Thus, it is possible to the second nut 30 is passed through into locking
Set 51 and lock-screw 52 are fixed on nut seat 10, after locking can to avoid the second nut 30 it is opposite with nut seat 10 vertically
It moves in direction.In order to it is easy for installation according to one embodiment of present invention, slotted hole 513 can be along between the circumferential direction of lock sleeve 51
Every the multiple of arrangement.
As shown in Figure 1, according to one embodiment of present invention, any one in the first nut 20 and the second nut 30 can
To include：Body part and the head being connected with body part, the radial dimension on head are more than the radial dimension of body part.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can say this
Different embodiments or example described in bright book are engaged and combined.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. a kind of screw nut driving mechanism, which is characterized in that including：Nut seat, the first nut, the second nut, screw and lock
Tight component, the nut seat have first through hole, and first nut and second nut are installed on the nut seat, institute
Screw is stated to pass through and with described two nut threads coordinate, first nut and the second spiral shell from the first nut and the second nut
At least one nut in mother is adjustable along the first through hole axial position, and the latch assembly is by least one nut phase
It is locked for the nut seat, the nut seat is equipped with second through hole orthogonal with the first through hole.
2. screw nut driving mechanism according to claim 1, which is characterized in that the first through hole includes first through hole
Section and the second through hole section, the cross section of the first through hole section is non-circular, and the cross section of second through hole section is circular, institute
The cross section of the inner end of the first nut is stated with the cross-section adaptation of the first through hole section and cooperation is in the first through hole section,
The inner end of second nut coordinates in second through hole section.
3. screw nut driving mechanism according to claim 2, which is characterized in that the first through hole section and described first
The cross section of nut is rectangle.
4. screw nut driving mechanism according to claim 2, which is characterized in that the nut seat is equipped with around described
The first annular boss of the outer end of first through hole section and the second annular convex platform around the outer end of second through hole section.
5. screw nut driving mechanism according to claim 4, which is characterized in that first nut is compared with the spiral shell
Female seat is fixed in the circumferential direction of the first through hole, second nut compared with the nut seat the first through hole axis
It is adjustable to position.
6. screw nut driving mechanism according to claim 5, which is characterized in that the latch assembly include lock sleeve and
Lock-screw, second annular convex platform have screw hole, and the lock sleeve is sleeved on second nut and second annular
On boss, second nut is fixed and along the first through hole along the circumferentially opposed of the first through hole in the lock sleeve
Axially movable, the lock-screw coordinates through the lock sleeve in the screw hole.
7. screw nut driving mechanism according to claim 6, which is characterized in that the lock sleeve has outer end wall, institute
Outer end wall is stated with non-circular matching hole, it is non-circular auxiliary section that the outer end of second nut, which is equipped with cross section, described
Auxiliary section coordinates in the matching hole.
8. screw nut driving mechanism according to claim 7, which is characterized in that the matching hole and the auxiliary section
Cross section is rectangle.
9. screw nut driving mechanism according to claim 6, which is characterized in that the lock sleeve is equipped with along the lock
The slotted hole of fixed circumferentially extending, the lock-screw coordinate through the slotted hole in the screw hole.
10. screw nut driving mechanism according to claim 9, which is characterized in that the slotted hole is along the locking
What is covered is circumferentially spaced multiple.
11. screw nut driving mechanism according to claim 1, which is characterized in that first nut and described second
Any one in nut includes：
Body part；
The head being connected with the body part, the radial dimension on the head are more than the radial dimension of the body part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611068876.5A CN108119625A (en) | 2016-11-29 | 2016-11-29 | Screw nut driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611068876.5A CN108119625A (en) | 2016-11-29 | 2016-11-29 | Screw nut driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119625A true CN108119625A (en) | 2018-06-05 |
Family
ID=62224286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611068876.5A Pending CN108119625A (en) | 2016-11-29 | 2016-11-29 | Screw nut driving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119625A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571569A (en) * | 2018-06-06 | 2018-09-25 | 河南森源电气股份有限公司 | The chassis vehicle and leadscrew-nut mechanism of breaker |
| CN110513456A (en) * | 2019-09-24 | 2019-11-29 | 广州铭匠智能科技有限公司 | A kind of leading screw and nut mechanism |
-
2016
- 2016-11-29 CN CN201611068876.5A patent/CN108119625A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571569A (en) * | 2018-06-06 | 2018-09-25 | 河南森源电气股份有限公司 | The chassis vehicle and leadscrew-nut mechanism of breaker |
| CN108571569B (en) * | 2018-06-06 | 2023-11-21 | 河南森源电气股份有限公司 | Chassis carriage and screw nut mechanism of circuit breaker |
| CN110513456A (en) * | 2019-09-24 | 2019-11-29 | 广州铭匠智能科技有限公司 | A kind of leading screw and nut mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2176560B1 (en) | Thread locking/prevailing torque fastener and fastener assembly | |
| JP5484182B2 (en) | clip | |
| US9242542B2 (en) | System for reducing engine roll | |
| US9908414B2 (en) | Retainer for a display device to be retained in a motor vehicle | |
| CN108119625A (en) | Screw nut driving mechanism | |
| WO2018084312A1 (en) | Linear drive device, motor and linear drive device production method | |
| US11560912B2 (en) | Tolerance compensation device | |
| KR20190017803A (en) | Adjustable connecting rod for turbo machines | |
| US8894340B2 (en) | Clip | |
| WO2015040766A1 (en) | Ball screw | |
| US11268564B2 (en) | Anti-loosening screw pair and anti-loosening screw component | |
| CN203948590U (en) | Screw nut driving mechanism | |
| US9664226B2 (en) | Assembly unit | |
| CN109751377A (en) | nut transmission mechanism | |
| EP3311023B1 (en) | Injector cup assembly | |
| MX2010011559A (en) | Structural unit. | |
| US11745787B2 (en) | System, method and apparatus for rake adjustment of a steering column | |
| CN204004254U (en) | Screw nut driving mechanism | |
| KR101172116B1 (en) | Telescope Steering Apparatus | |
| CN211975799U (en) | Connecting rod mechanism | |
| JP2016160877A (en) | Governor adjustment device | |
| CN117419090A (en) | Compensation nut assembly | |
| JP7113588B1 (en) | connecting member | |
| KR20180103677A (en) | Captive fasteners | |
| US7414191B2 (en) | Electrical-component assembly and method of assembling the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180605 |
|
| WD01 | Invention patent application deemed withdrawn after publication |