CN207961440U - Combination nut and feed screw nut's structure - Google Patents
Combination nut and feed screw nut's structure Download PDFInfo
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- CN207961440U CN207961440U CN201721922678.0U CN201721922678U CN207961440U CN 207961440 U CN207961440 U CN 207961440U CN 201721922678 U CN201721922678 U CN 201721922678U CN 207961440 U CN207961440 U CN 207961440U
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- nut
- combination
- bulge loop
- lead screw
- latch
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Abstract
The utility model is related to screw nut driving structures, it is intended to solve in existing feed screw nut pair, nut on lead screw when moving, due to itself part tolerance etc., it is not easy to control there are nut displacement distance, the problem of being susceptible to displacement error, provide combination nut and feed screw nut's structure.Combination nut includes the first nut, the second nut, elastic component.First nut and the second nut are along the axially opposing of the two, and the opposite end of the two is configured in circumferential mutually limit.Elastic component is configured to be supported between the first nut and the second nut, and can apply elastic anchorage force axially outward to the first nut, the second nut respectively.Feed screw nut's structure includes combination nut and lead screw.The utility model has the beneficial effects that the accurate difference in nut shift position.
Description
Technical field
The utility model is related to screw nut driving structures, in particular to combination nut and feed screw nut's structure.
Background technology
Feed screw nut pair is common drive mechanism, is chiefly used in convert rotational motion being the occasion to move along a straight line.
In existing feed screw nut pair, for nut when being moved on lead screw, due to itself part tolerance etc., there are nuts
Displacement distance is not easy to control, the problem of being susceptible to displacement error.
Utility model content
The utility model is intended to provide a kind of combination nut, and to solve in existing feed screw nut pair, nut is on lead screw
When mobile, due to itself part tolerance etc., it is not easy to control that there are nut displacement distances, is susceptible to asking for displacement error
Topic.
The another object of the utility model is to provide a kind of feed screw nut's structure having said combination nut.
What the embodiments of the present invention were realized in：
The utility model embodiment provides a kind of combination nut comprising the first nut, the second nut, elastic component.First
Nut and the second nut are along the axially opposing of the two, and the opposite end of the two is configured in circumferential mutually limit.Elastic component quilt
Be configured to be supported between the first nut and the second nut, and can respectively to the first nut, the second nut apply in an axial direction to
Outer elastic anchorage force.
Combination nut in the present embodiment can be used for lead screw form feed screw nut pair, can be used as be by convert rotational motion
The occasions such as linear motion.
When combination nut in the present embodiment is sheathed on lead screw, axis is applied by the first nut of elastic component pair, the second nut
To elastic force, the internal thread of internal thread and the second nut that the first nut can be made always axial compression in the external screw thread of lead screw,
Ensure the distance that combination nut is moved axially along lead screw, avoids causing axial runout gap between feed screw nut by part tolerance etc.
Caused by nut displacement distance inaccuracy problem.The circumferential mutually limit of both first nut and the second nut opposite end can be kept away
Exempt from, when combination nut is moved axially along lead screw, relative rotation circumferentially to occur between the first nut and the second nut, influence
The normal use of feed screw nut pair.
The combination nut in the utility model embodiment, which has, as a result, can avoid mobile mistiming is poor on lead screw from going out
It is existing, and circumferentially opposed rotation does not occur for the first nut and the second nut, does not interfere with the normal use of feed screw nut pair.
In an embodiment of the present embodiment：
First nut extended axially outwardly close to axial one end of the second nut to be formed it is multiple along its circumferentially-spaced distribution
The first latch.Second nut extended axially outwardly close to axial one end of the first nut to be formed it is multiple along its circumferentially-spaced point
Second latch of cloth.First latch and the second latch are mutually clamped, and mutual flank is matched in circumferential mutually limit.
In an embodiment of the present embodiment：
Include the first bulge loop, cylindrical tube, the first latch successively along its axial first nut.Along its axial second nut according to
Secondary includes the second bulge loop, the second latch.Elastic component is helical compression spring, and helical compression spring pocket is set to cylindrical tube
Outside, the both ends of helical compression spring are respectively supported between the first bulge loop and the second bulge loop.
In an embodiment of the present embodiment：
The peripheral surface of first bulge loop is regular hexagonal prism face.
In an embodiment of the present embodiment：
First bulge loop circumferentially extends outward to form multiple circumferentially spaced raised lines close to the end face of the second bulge loop.Spiral shell
One end of rotation shape compressed spring is resisted against the end face of the first bulge loop by raised line.
In an embodiment of the present embodiment：
Elastic component includes multiple elastics being supported between the first nut and the second nut, and multiple elastics are along the first spiral shell
It is female and the second nut circumferentially distributed.
In an embodiment of the present embodiment：
The one end of first nut far from the second nut is connected with flange part.
In an embodiment of the present embodiment：
The one end of first nut far from the second nut, which axially extends to be formed, has externally threaded connection ring, flange part screw thread
It is connected to connection ring.
In an embodiment of the present embodiment：
Flange part is three-legged structure, and connecting hole is opened up respectively at each angle.
The utility model embodiment also provides a kind of feed screw nut's structure comprising lead screw and combination nut above-mentioned.Group
It closes nut to be connected in lead screw, and can be moved along the axially opposing lead screw of lead screw.First nut and the second nut are respectively screw
It is matched with lead screw.
Feed screw nut's structure in the present embodiment uses combination nut above-mentioned so that in use, combination nut movement
The accurate difference in position.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of feed screw nut's structure in the utility model embodiment；
Fig. 2 is the structural schematic diagram of the combination nut in the utility model embodiment；
Fig. 3 is the explosive view of Fig. 2.
Icon：100- combination nuts；The first nuts of 10-；The first latches of 11-；12- cylindrical tubes；The first bulge loops of 13-；14-
Raised line；15- connection rings；The second nuts of 20-；The second latches of 21-；The second bulge loops of 22-；30- elastic components；40- flange parts；K1- connects
Connect hole；010- feed screw nut's structure；200- lead screws.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that if occur term "center", "upper", "lower", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on ... shown in the drawings or position
Relationship or the utility model product using when the orientation or positional relationship usually put, be merely for convenience of describing this reality
With novel and simplified description, does not indicate or imply the indicated device or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore should not be understood as limiting the present invention.If in addition, occurring in the description of the utility model
Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
If being not offered as requiring component in addition, occurring the terms such as term "horizontal", "vertical" in the description of the utility model
Abswolute level or pendency, but can be slightly tilted.If "horizontal" refers to only that its direction is more horizontal with respect to for "vertical",
It is not to indicate that the structure is had to fully horizontally, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, if there is art
Language " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, and can also be detachable for example, it may be being fixedly connected
Connection, or be integrally connected；It can be mechanical connection, can also be electrical connection；It can be directly connected, centre can also be passed through
Medium is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
Fig. 1 is the structural schematic diagram of feed screw nut's structure 010 in the utility model embodiment.Referring to Fig. 1, this practicality is new
Feed screw nut's structure 010 in type embodiment includes lead screw 200 and combination nut 100.Combination nut 100 is connected in lead screw
200, and can be moved along 200 axially opposing lead screw 200 of lead screw.
Fig. 2 is the structural schematic diagram of the combination nut 100 in the utility model embodiment；Fig. 3 is the explosive view of Fig. 2.
Referring to Fig. 2, Fig. 3, the combination nut 100 that the utility model embodiment provides includes the first nut 10, the second nut 20, bullet for cooperation
Property part 30.First nut 10 and the second nut 20 are along the axially opposing of the two, and the opposite end of the two is configured in circumferential phase
Mutually limit.Elastic component 30 is configured to be supported between the first nut 10 and the second nut 20, and can be respectively to the first nut
10, the second nut 20 applies elastic anchorage force axially outward.First nut 10 and the second nut 20 are respectively screw and are matched with
Lead screw 200.
Combination nut 100 in the present embodiment and lead screw 200 form feed screw nut pair, can be used as be by convert rotational motion
The occasions such as linear motion.
When combination nut 100 in the present embodiment is sheathed on lead screw 200, by elastic component 30 to the first nut 10, second
Nut 20 applies axial elastic force, the internal thread of the internal thread and the second nut 20 that can make the first nut 10 axial compression always
In the external screw thread of lead screw 200, it is ensured that the distance that combination nut 100 is moved axially along lead screw 200 avoids being caused by part tolerance etc.
The problem of nut displacement distance inaccuracy caused by axial runout gap between feed screw nut.First nut 10 and the second nut 20
The circumferential mutually limit of the two opposite end can avoid when combination nut 100 is moved axially along lead screw 200, the first nut 10 and the
Relative rotation circumferentially occurs between two nuts 20, influences the normal use of feed screw nut pair.It should be noted that being limited at this
Between fixed the first nut 10 and the second nut 20 in circumferential mutually limit, the first nut 10 and the second nut 20 are not mounted in lead screw
Be free state in the axial movement that is relatively distant from when on 200, i.e., when not being loaded on lead screw 200, the first nut 10 and the second spiral shell
Mother 20 can dismantle in an axial direction, be separated from each other.Certainly, elastic component 30 can also be removed detaches with the two.When mounted, three are sequentially loaded into
Person.Certainly, when on loaded on lead screw 200, the first nut 10 and 20 axially opposed separate freedom of the second nut are by lead screw 200
External screw thread limit.
The combination nut 100 in the utility model embodiment, which has, as a result, can avoid the mobile mistiming on lead screw 200 poor
Appearance, and circumferentially opposed rotation does not occur for the first nut 10 and the second nut 20, and not interfering with the normal of feed screw nut pair makes
With.
To make the first nut 10 and the second nut 20 that axially opposing rotation not occur, referring to Fig. 2, Fig. 3, the first nut 10 leans on
Axial one end of nearly second nut 20 extends axially outwardly to form multiple the first latches 11 along its circumferentially-spaced distribution.Second
Nut 20 extends axially outwardly to form multiple the second cards along its circumferentially-spaced distribution close to axial one end of the first nut 10
Tooth 21.First latch 11 and the second latch 21 are mutually clamped, and mutual flank is matched in circumferential mutually limit.In such as figure
The first latch 11 shown is two, and the second latch 21 is four；There are four gaps altogether between four the second latches 21, therein
Two for coordinating two the first latches 11.In the case of optional, the width of the first latch 11 is equal between two the second latches 21
Spacing, the second latch 21 width be equal to the spacing between two the first latches 11, in this way, the flank of the first latch 11 and
Circumferential restriction can be carried out between the flank of second latch 21 well.Certainly, in other embodiments, space width can be bigger
In the facewidth, so as to which the cooperation of the first nut 10 and the second nut 20 is facilitated to install within the scope of required precision.
In other embodiments, to make the first nut 10 and the second nut 20 that circumferentially opposed rotation not occur, can also be arranged
Pass through spline fitted etc. at the two end.
With continued reference to Fig. 2, Fig. 3, in the present embodiment, along its axial direction, the first nut 10 includes that connection ring 15, first is convex successively
Ring 13, cylindrical tube 12, the first latch 11.The peripheral surface of first bulge loop 13 is regular hexagonal prism face.And its section be more than its two
The first bulge loop 13 and cylindrical tube 12 of side.One side end face of the first bulge loop 13 circumferentially extend outward to form it is multiple circumferentially between
Every distribution raised line 14.The peripheral surface of the medial surface fitting cylindrical tube 12 of raised line 14.The connection of first nut 10 under actual product
Ring 15, the first bulge loop 13, cylindrical tube 12, the first latch 11.First bulge loop 13, raised line 14 can be integrally formed, and material can be with
It is plastics, metal etc..
The outer surface of connection ring 15 has external screw thread, and is threadedly coupled flange part 40；Flange part 40 is three-legged structure, each
Connecting hole K1 is opened up at a angle respectively.The axial limiting shaft shoulder of first bulge loop 13 as flange part 40.Flange part 40 is used for this reality
The combination nut 100 applied in example connects other structures such as slide unit etc..Flange part 40 may also be arranged to other forms.Certainly, also may be used
Connection structure is set directly on the first nut 10 and omits the flange part 40 separately set.
With continued reference to Fig. 2, Fig. 3, along its axial direction, the second nut 20 includes the second bulge loop 22, the second latch 21 successively.Second
Bulge loop 22 is in the second latch of radially protruding 21.
10 and second nut 20 of aforementioned first nut complements each other to form week by its first latch 11 and the second latch 21
To limit.Specific set-up mode, which can be found in, to be described above.
Referring to Fig. 3, the elastic component 30 in the present embodiment is helical compression spring, and helical compression spring pocket is set to cylinder
Outside cylinder 12, one end is resisted against the end face of the first bulge loop 13 by raised line 14, and the other end supports the end face of the second bulge loop 22, real
It now flexibly supports between the first nut 10 and the second nut 20, provides the support force of the two axially outward, it is ensured that the two exists
When being connected to lead screw 200, the external screw thread of clamping screw 200, so that it is guaranteed that the precision that combination nut 100 moves, avoids mobile mistake
Difference.
In other embodiments, elastic component 30 includes multiple bullets being supported between the first nut 10 and the second nut 20
Property column (not shown), multiple elastics are circumferentially distributed along the first nut 10 and the second nut 20.Elasticity may be used in elastic
Steel bar or elastic adhesive tape etc., one end is supported in the first bulge loop 13, the other end is supported in the second bulge loop 22.
In summary it describes, the combination nut 100 and feed screw nut's structure 010 in the present embodiment are adopted with combination nut
The advantageous effect of the accurate difference of 100 movement on lead screw 200.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of combination nut, it is characterised in that：
The combination nut includes the first nut, the second nut, elastic component；
First nut and second nut are along the axially opposing of the two, and the opposite end of the two is configured in circumferential phase
Mutually limit；
The elastic component is configured to be supported between first nut and second nut, and can be respectively to described
One nut, second nut apply elastic anchorage force axially outward.
2. combination nut according to claim 1, it is characterised in that：
First nut extended axially outwardly close to axial one end of second nut to be formed it is multiple circumferentially-spaced along its
First latch of distribution；
Second nut extended axially outwardly close to axial one end of first nut to be formed it is multiple circumferentially-spaced along its
Second latch of distribution；
First latch and second latch are mutually clamped, and mutual flank is matched in circumferential mutually limit.
3. combination nut according to claim 2, it is characterised in that：
Include the first bulge loop, cylindrical tube, first latch successively along its axial described first nut；
Include the second bulge loop, second latch successively along its axial described second nut；
The elastic component is helical compression spring, and the helical compression spring pocket is set to outside the cylindrical tube, the spiral shell
The both ends of rotation shape compressed spring are respectively supported between first bulge loop and second bulge loop.
4. combination nut according to claim 3, it is characterised in that：
The peripheral surface of first bulge loop is regular hexagonal prism face.
5. combination nut according to claim 3, it is characterised in that：
First bulge loop circumferentially extends outward to form multiple circumferentially spaced convex close to the end face of second bulge loop
Item；One end of the helical compression spring is resisted against the end face of first bulge loop by the raised line.
6. combination nut according to claim 1, it is characterised in that：
The elastic component includes multiple elastics being supported between first nut and second nut, multiple bullets
Property column is circumferentially distributed along first nut and second nut.
7. combination nut according to claim 1, it is characterised in that：
The one end of first nut far from second nut is connected with flange part.
8. combination nut according to claim 7, it is characterised in that：
The one end of first nut far from second nut, which axially extends to be formed, has externally threaded connection ring, the method
Blue part is threadedly connected to the connection ring.
9. combination nut according to claim 8, it is characterised in that：
The flange part is three-legged structure, and connecting hole is opened up respectively at each angle.
10. a kind of feed screw nut's structure, it is characterised in that：
Feed screw nut's structure includes lead screw and claim 1-9 any one of them combination nuts；
The combination nut is connected in the lead screw, and can be moved along the axially opposing lead screw of the lead screw；
First nut and second nut are respectively screw and are matched with the lead screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922678.0U CN207961440U (en) | 2017-12-29 | 2017-12-29 | Combination nut and feed screw nut's structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922678.0U CN207961440U (en) | 2017-12-29 | 2017-12-29 | Combination nut and feed screw nut's structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961440U true CN207961440U (en) | 2018-10-12 |
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ID=63731407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721922678.0U Active CN207961440U (en) | 2017-12-29 | 2017-12-29 | Combination nut and feed screw nut's structure |
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| Country | Link |
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| CN (1) | CN207961440U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894346A (en) * | 2019-03-15 | 2019-06-18 | 安徽华星选矿科技有限公司 | A kind of sine roller picker screen axis, screen axis cooling device and its bearing lubrication hydraulic fluid port |
| 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 |
| CN113492308A (en) * | 2020-03-20 | 2021-10-12 | 中国航发商用航空发动机有限责任公司 | Assembly system of gland nut and screwing positioning tool thereof |
| WO2022142957A1 (en) * | 2020-12-28 | 2022-07-07 | 深圳市纵维立方科技有限公司 | Transmission assembly and three-dimensional printing device |
-
2017
- 2017-12-29 CN CN201721922678.0U patent/CN207961440U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894346A (en) * | 2019-03-15 | 2019-06-18 | 安徽华星选矿科技有限公司 | A kind of sine roller picker screen axis, screen axis cooling device and its bearing lubrication hydraulic fluid port |
| 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 |
| CN113492308A (en) * | 2020-03-20 | 2021-10-12 | 中国航发商用航空发动机有限责任公司 | Assembly system of gland nut and screwing positioning tool thereof |
| CN113492308B (en) * | 2020-03-20 | 2022-03-29 | 中国航发商用航空发动机有限责任公司 | Assembly system of gland nut and screwing positioning tool thereof |
| WO2022142957A1 (en) * | 2020-12-28 | 2022-07-07 | 深圳市纵维立方科技有限公司 | Transmission assembly and three-dimensional printing device |
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