CN207470723U - A kind of trapezoidal screw - Google Patents
A kind of trapezoidal screw Download PDFInfo
- Publication number
- CN207470723U CN207470723U CN201721434998.1U CN201721434998U CN207470723U CN 207470723 U CN207470723 U CN 207470723U CN 201721434998 U CN201721434998 U CN 201721434998U CN 207470723 U CN207470723 U CN 207470723U
- Authority
- CN
- China
- Prior art keywords
- screw
- trapezoidal
- main body
- axle ends
- nut
- 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 discloses a kind of trapezoidal screw, including screw main body, two step left axle ends and three step right axle ends；The screw body side is two step left axle ends, opposite side is three step right axle ends, the screw main body includes left screw, intermediate screw and right screw, the left screw is connected by mid diameter with right screw less than left screw with the intermediate screw of right screw, and the intermediate screw outer wall is arranged with intermediate nut.This trapezoidal screw left end sets clamp spring, and right end sets keyway, ensures trapezoidal screw fixing-stable, intermediate screw is set among screw main body, and left screw and right screw are all provided with screw thread, can more combine closely with other accessories, and the restriction of nut extreme position ensures precision.
Description
Technical field
The utility model is related to a kind of screws, and in particular to a kind of trapezoidal screw.
Background technology
Trapezoidal screw is mainly used in transmission and position regulator, compared with ball-screw, although frictional force is larger, passes
The shortcomings of efficiency of movement is relatively low, relative wear is very fast, but with it is at low cost, bearing capacity is big, it is compact-sized it is simple, being capable of self-locking etc.
Advantage is widely used in the industrial equipments such as various machine tools and elevator.
Utility model content
The technical issues of the utility model is mainly solved present in the prior art, so as to provide a kind of trapezoidal screw.
The above-mentioned technical problem of the utility model is mainly what is be addressed by following technical proposals：A kind of trapezoidal silk
Bar, including screw main body, two step left axle ends and three step right axle ends；The screw body side is two step left axle ends, separately
Side is three step right axle ends, and the screw main body includes left screw, intermediate screw and right screw, the left screw and right screw
It is connected by mid diameter less than left screw with the intermediate screw of right screw, the intermediate screw outer wall is arranged with intermediate nut.
The left screw outer wall is covered with screw thread, long 1004.6mm.
The right screw outer wall is covered with screw thread, long 1031.6mm.
Left and right nut extreme position is additionally provided with close to intermediate screw side in the left screw and right screw, ensures that screw exists
Precision during use so that deviation is controllable.
The first step of the two steps left axle end far from screw body side is equipped with jump-ring slot.
Three steps right axle end second step is equipped with jump-ring slot, and the third step far from screw main body is unilateral to be equipped with key
Slot.
The trapezoidal screw outer surface is covered with lubricating and wear-resisting coating.
The trapezoidal screw of the utility model has the following advantages：This trapezoidal screw left end sets clamp spring, and right end sets keyway, ensures
Trapezoidal screw fixing-stable sets intermediate screw among screw main body, and left screw and right screw are all provided with screw thread, can be with other accessories more
It combines closely, the restriction of nut extreme position ensures precision.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of the trapezoidal screw of the utility model.
Fig. 2 is two step left axle ends, I structure diagram of the trapezoidal screw in Fig. 1.
Fig. 3 is three step right axle ends, II structure diagram of the trapezoidal screw in Fig. 1.
Fig. 4 is the sectional view for three step right axle ends II in Fig. 3.
Wherein, 1. screw main bodys, 11. left screws, 12. intermediate screws, 13. right screws, 2. 2 step left axle ends, 3. 3
Rank right axle end, 4. screw threads, 5. jump-ring slots, 6. keyways.
Specific embodiment
The preferred embodiment of the utility model is described in detail in 1-4 below in conjunction with the accompanying drawings, so that the utility model
Advantages and features can be easier to be readily appreciated by one skilled in the art, apparent so as to be made to the scope of protection of the utility model
Explicitly define.
A kind of trapezoidal screw, including screw main body (1), two step left axle ends (2) and three step right axle ends (3)；The silk
Bar main body (1) side is two step left axle ends (2), and opposite side is three step right axle ends (3), and the screw main body (1) is including a left side
Screw (11), intermediate screw (12) and right screw (13), the left screw (11) and right screw (13) are less than by mid diameter
The intermediate screw (12) of left screw (11) and right screw (13) connects, and intermediate screw (12) outer wall is arranged with intermediate nut.
Left screw (11) outer wall is covered with screw thread (4), long 1004.6mm.
Right screw (13) outer wall is covered with screw thread (4), long 1031.6mm.
On the left screw (11) and right screw (13) left and right nut limit position is additionally provided with close to intermediate screw (12) side
It puts, ensures the precision of screw in use so that deviation is controllable.
First step of the two steps left axle end (2) far from screw main body (1) side is equipped with jump-ring slot (5).
Three steps right axle end (3) second step is equipped with jump-ring slot (5), the third step list far from screw main body (1)
Side is equipped with keyway (6).
The trapezoidal screw outer surface is covered with lubricating and wear-resisting coating.
Not limited to this, any change or replacement expected without creative work should all be covered in the utility model
Protection domain within.Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of trapezoidal screw, which is characterized in that including screw main body（1）, two step left axle ends（2）With three step right axle ends
（3）；The screw main body（1）Side is two step left axle ends（2）, opposite side is three step right axle ends（3）, the screw main body
（1）Including left screw（11）, intermediate screw（12）And right screw（13）, the left screw（11）And right screw（13）Pass through centre
Diameter is less than left screw（11）And right screw（13）Intermediate screw（12）Connection, the intermediate screw（12）During outer wall is arranged with
Between nut.
2. trapezoidal screw according to claim 1, which is characterized in that the left screw（11）Outer wall is covered with screw thread（4）, it is long
1004.6mm。
3. trapezoidal screw according to claim 1, which is characterized in that the right screw（13）Outer wall is covered with screw thread（4）, it is long
1031.6mm。
4. trapezoidal screw according to claim 1, which is characterized in that the left screw（11）And right screw（13）It is upper close
Intermediate screw（12）Side is additionally provided with left and right nut extreme position.
5. trapezoidal screw according to claim 1, which is characterized in that the two steps left axle end（2）Far from screw main body
（1）The first step of side is equipped with jump-ring slot（5）.
6. trapezoidal screw according to claim 1, which is characterized in that the three steps right axle end（3）Second step is equipped with
Jump-ring slot（5）, far from screw main body（1）Third step it is unilateral be equipped with keyway（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434998.1U CN207470723U (en) | 2017-10-31 | 2017-10-31 | A kind of trapezoidal screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721434998.1U CN207470723U (en) | 2017-10-31 | 2017-10-31 | A kind of trapezoidal screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470723U true CN207470723U (en) | 2018-06-08 |
Family
ID=62266039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721434998.1U Expired - Fee Related CN207470723U (en) | 2017-10-31 | 2017-10-31 | A kind of trapezoidal screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470723U (en) |
-
2017
- 2017-10-31 CN CN201721434998.1U patent/CN207470723U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20211031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |