CN202646572U - Screw rod - Google Patents
Screw rod Download PDFInfo
- Publication number
- CN202646572U CN202646572U CN 201220286337 CN201220286337U CN202646572U CN 202646572 U CN202646572 U CN 202646572U CN 201220286337 CN201220286337 CN 201220286337 CN 201220286337 U CN201220286337 U CN 201220286337U CN 202646572 U CN202646572 U CN 202646572U
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- utility
- model
- locating piece
- screw rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a screw rod. The screw rod comprises a cylindrical body. One end of the body of the screw rod is provided with a connecting portion in a protruding mode, the connecting portion is provided with a through groove, and the body is further provided with an annular positioning piece. The screw rod is provided with the positioning piece, and therefore the screw rod can be accurately positioned in the process of rotation, and needs for production and machining are met.
Description
Technical field
The utility model relates to a kind of mechanical parts, relates in particular to a kind of screw mandrel.
Background technique
Screw mandrel is that rotation motion is converted into straight line motion, or straight line motion is converted into the desirable product of rotation motion.Screw mandrel is comprised of screw rod, nut and ball.Its function is to change into straight line motion with rotatablely moving, and this is further extension and the development of ball screw, and the significance of this development becomes bearing into sliding action from scroll actions exactly.Owing to having very little surface friction drag, leading screw is widely used in various industry equipments and precision type instrument.
Screw mandrel sometimes need its transmission position is limited, but existing screw mandrel often can not satisfy this requirement in transmission process.
Therefore, be necessary existing screw mandrel is improved, to address the above problem.
The model utility content
The purpose of this utility model is to provide a kind of screw mandrel, and it has overcome the inaccurate problem in location in the screw mandrel movement process of the prior art.
For realizing above-mentioned model utility purpose, a kind of screw mandrel of the present utility model, it comprises columniform body, is provided with a junction from a distal process of the body of described screw mandrel, offers groove on the described joint; Also be provided with the locating piece of annular on the described body.
As further improvement of the utility model, the locating piece of described annular is perpendicular to the wall of the body of described screw mandrel.
As further improvement of the utility model, the locating piece of described annular is near an end of described joint.
As further improvement of the utility model, the width of described locating piece is 10mm.
As further improvement of the utility model, the diameter of the locating piece of described annular is 35mm.
As further improvement of the utility model, described groove extends axially along the body of described screw mandrel.
As further improvement of the utility model, the body interior of described screw mandrel is hollow structure.
As further improvement of the utility model, the length of described screw mandrel is 350mm.
As further improvement of the utility model, described joint is cylindrical.
As further improvement of the utility model, the diameter of described joint is less than the diameter of the body of described screw mandrel.
Compared with prior art, the beneficial effects of the utility model are: be provided with locating piece on the screw mandrel of the present utility model, it can accurately locate the screw mandrel that so arranges in transmission process, satisfies the needs of production and processing.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below does to introduce simply to the accompanying drawing of required use in embodiment or the prior art, apparently, accompanying drawing relevant of the present utility model in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 be screw mandrel of the present utility model plan view;
Fig. 2 is the axial sectional view in screw mandrel A-A shown in Figure 1 place.
Embodiment
Below in conjunction with each mode of execution shown in the drawings the utility model is elaborated; but should be noted that; these mode of executions are not limitation of the utility model; those of ordinary skills all belong within the protection domain of the present utility model according to these mode of execution institute work energy, method or structural equivalent transformation or alternative.
As shown in Figure 1 and Figure 2, Fig. 1 is the plan view of screw mandrel 100 in the present embodiment, and Fig. 2 is the cutaway view Amplified image of screw mandrel 100A-A direction shown in Figure 1.It comprises columniform body 10, is provided with a cylindrical joint 11 from a distal process of the body 10 of described screw mandrel 100, and the diameter of this cylindrical joint 11 is less than the diameter of described body 10.Also offer groove 111 on the described joint 11, this groove 111 extends axially along the body 10 of described screw mandrel 100.
Also be provided with the locating piece 12 of annular on the described body 10, the locating piece 12 of above-mentioned annular is perpendicular to the wall of the body 10 of described screw mandrel 100, and locating piece 12 is near an end of described joint 11.
In the present embodiment, as a kind of preferred implementation, the width of described locating piece is 10mm, and its diameter is 35mm.
Simultaneously, the inside of the body 10 of above-mentioned screw mandrel 100 is hollow structure, and preferably, the length of screw mandrel 100 is 350mm
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that do not deviate from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, therefore is intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in the scope.Any reference character in the claim should be considered as limit related claim.
In addition, be to be understood that, although this specification is described according to mode of execution, but be not that each mode of execution only comprises an independently technological scheme, this narrating mode of specification only is for clarity sake, those skilled in the art should make specification as a whole, and the technological scheme among each embodiment also can through appropriate combination, form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (8)
1. a screw mandrel is characterized in that, described screw mandrel comprises columniform body, is provided with a junction from a distal process of the body of described screw mandrel, offers groove on the described joint; Also be provided with the locating piece of annular on the described body, the locating piece of described annular is perpendicular to the wall of the body of described screw mandrel and an end of close described joint.
2. screw mandrel according to claim 1 is characterized in that, the width of described locating piece is 10mm.
3. screw mandrel according to claim 1 is characterized in that, the diameter of the locating piece of described annular is 35mm.
4. screw mandrel according to claim 1 is characterized in that, described groove extends axially along the body of described screw mandrel.
5. screw mandrel according to claim 4 is characterized in that, the body interior of described screw mandrel is hollow structure.
6. screw mandrel according to claim 1 is characterized in that, the length of described screw mandrel is 350mm.
7. screw mandrel according to claim 1 is characterized in that, described joint is cylindrical.
8. screw mandrel according to claim 7 is characterized in that, the diameter of described joint is less than the diameter of the body of described screw mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286337 CN202646572U (en) | 2012-06-19 | 2012-06-19 | Screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286337 CN202646572U (en) | 2012-06-19 | 2012-06-19 | Screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646572U true CN202646572U (en) | 2013-01-02 |
Family
ID=47415682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220286337 Expired - Fee Related CN202646572U (en) | 2012-06-19 | 2012-06-19 | Screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705466A (en) * | 2012-06-19 | 2012-10-03 | 无锡市百顺机械厂 | Screw rod |
-
2012
- 2012-06-19 CN CN 201220286337 patent/CN202646572U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705466A (en) * | 2012-06-19 | 2012-10-03 | 无锡市百顺机械厂 | Screw rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20130619 |