CN209458364U - It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block - Google Patents
It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block Download PDFInfo
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- CN209458364U CN209458364U CN201822174473.XU CN201822174473U CN209458364U CN 209458364 U CN209458364 U CN 209458364U CN 201822174473 U CN201822174473 U CN 201822174473U CN 209458364 U CN209458364 U CN 209458364U
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- screw rod
- rotary spacing
- screw
- spacing block
- block
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Abstract
It is disclosed by the utility model a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block, the screw being meshed including screw rod and with the screw rod by ball and the screw rod stroke limit block being fixed on described screw rod one end, it is characterized in that, being fixed with one in the screw rod other end prevents rotary spacing block, when it is described prevent rotary spacing block from engaging with the screw when, on the other hand the stroke for preventing rotary spacing block from the one hand limiting the screw rod prevents screw rod rotation from can only move in a straight line.The position-limit mechanism with a limitation screw rod stroke in original ball wire bar pair is combined into one by the utility model with the fixed structure for preventing screw rod from rotating, and is achieved the purpose that not only to limit screw rod stroke by a part but also is prevented screw rod from rotating.It is simple with structure, processing easy to produce and advantage at low cost.
Description
Technical field
It is the utility model relates to ball screw technical field, in particular to a kind of with preventing the flange of rotary spacing block from adding
Strong type ball wire bar pair.
Background technique
Ball wire bar pair can become the rotary motion of screw the linear motion of screw rod.It during usage, is anti-
Only screw rod is rotated with screw, it will usually the spinning solution of screw rod be fixed, prevent screw rod from rotating, can only carry out straight line fortune
It is dynamic.In addition to screw rod is prevented to be detached from screw during moving forward and backward, it will usually increase position-limit mechanism in screw rod front and back end, make
The stroke of screw rod is fixed.The limit of the fixed structure for preventing screw rod from rotating and limitation screw rod stroke in existing ball wire bar pair
Mechanism be it is separated, cause the part of entire ball screw excessive, increase the cost of ball wire bar pair.
Utility model content
The technical problem to be solved by the utility model is to prevent screw rod from rotating in existing ball wire bar pair
The position-limit mechanism of fixed structure and limitation screw rod stroke, which separately designs, causes the part of entire ball screw excessive, increases ball
The problem of cost of screw pair and provide it is a kind of will prevent screw rod rotate fixed structure and limitation screw rod stroke position-limit mechanism
Having for being combined into one prevents the reinforced ball wire bar pair of the flange of rotary spacing block, with reduce the manufacture of ball wire bar pair at
This, processing easy to produce.
Technical problem to be solved in the utility model can be achieved through the following technical solutions
It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block, including screw rod and pass through with the screw rod
The screw that ball is meshed and the screw rod stroke limit block being fixed on described screw rod one end, which is characterized in that in the silk
The bar other end, which is fixed with one, prevents rotary spacing block, when it is described prevent rotary spacing block from engaging with the screw when, it is described to prevent
On the one hand rotary spacing block limits the stroke of the screw rod, on the other hand prevent screw rod rotation from can only move in a straight line.
In a preferred embodiment of the utility model, in the screw towards this one end of the screw rod stroke limit block
Be provided with a step inner hole, the periphery of the screw rod stroke limit block is a Step Shaft, when the Step Shaft step surface with
When step face contact in the step inner hole, the screw rod stroke limit block and screw cooperation limit the screw rod and exist
Stroke on one direction.
In a preferred embodiment of the utility model, this one end of rotary spacing block is prevented towards described in the screw
An inner hole is offered, axial straight trough is provided on the periphery of the inner hole, the opening of the axial direction straight trough is prevented towards described
Rotary spacing block；It is described that prevent rotary spacing block include a cylindrical body, be provided on the excircle of the cylindrical body it is radial to
The screw rod stroke limit block and screw rod anti-rotation limited block of outer extension, when the screw rod stroke limit block towards the screw this
End face and the screw towards it is described prevent this end face of rotary spacing block contact and the cylinder surface to the screw this
After the bottom hole face contact of the end face at end and the inner hole, the screw rod anti-rotation limited block is inserted into the axial straight trough, thus
Make the stroke for preventing rotary spacing block from the one hand limiting the screw rod, on the other hand prevents screw rod rotation from can only move in a straight line.
Due to use technical solution as above, the utility model by original ball wire bar pair with a limitation screw rod
The position-limit mechanism of stroke is combined into one with the fixed structure for preventing screw rod from rotating, and is reached by a part and is both limited screw rod stroke
The purpose for preventing screw rod from rotating again.Prevent rotary spacing block structure simple in the utility model, processing easy to produce；While with
Screw rod assembly is simple, directlys adopt interference fit, improves assembly efficiency, while effectivelying prevent preventing rotary spacing block again
Loosening is fallen, and the utility model reduces the manufacturing cost of ball wire bar pair.
Detailed description of the invention
Fig. 1 is that the utility model has the left side for preventing that screw rod is run in the reinforced ball wire bar pair of the flange of rotary spacing block
The status diagram of extreme position.
Fig. 2 is that the utility model has the left side for preventing that screw rod is run in the reinforced ball wire bar pair of the flange of rotary spacing block
The status diagram of extreme position.
Fig. 3 has for the utility model prevents the structure of screw in the reinforced ball wire bar pair of the flange of rotary spacing block from showing
It is intended to.
Fig. 4 is that the utility model has and prevents in the reinforced ball wire bar pair of the flange of rotary spacing block screw towards described
Prevent the end view of this one end of rotary spacing block.
Fig. 5 be the utility model have prevent from preventing rotary spacing in the reinforced ball wire bar pair of the flange of rotary spacing block
The structural schematic diagram of block.
Fig. 6 be the utility model have prevent from preventing rotary spacing in the reinforced ball wire bar pair of the flange of rotary spacing block
The front view of block.
Specific embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments.
It is shown in figure a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block referring to Fig. 1 to Fig. 6,
Pass through the screw 20 and interference fit type is used to be fixed on screw rod 10 1 that ball 30 is meshed including screw rod 10 and with screw rod 10
Screw rod stroke limit block 40 on end and rotary spacing block 50 is prevented using fixed 10 other end of screw rod of interference fit type.
40 this one end of screw rod stroke limit block is provided with a step inner hole 21, screw rod stroke limit block in screw 20
40 periphery is a Step Shaft 41, when the step surface 22 in the step surface 42 of Step Shaft 41 and step inner hole 21 contacts, silk
The movement travel of throw of lever limited block 40 and the cooperation limitation of screw 30 screw rod 20 to the left (referring to Fig. 1).
In screw 20 towards preventing this one end of rotary spacing block 50 from offering an inner hole 23, it is arranged on the periphery of inner hole 23
There is an axial straight trough 24, the opening of axial straight trough 24 is towards preventing rotary spacing block 50.
Preventing rotary spacing block 50 includes a cylindrical body 51, is provided with and extends radially outwardly on the excircle of cylindrical body 51
Screw rod stroke limit block 52 and screw rod anti-rotation limited block 53, cylindrical body 51 is using on the fixed screw rod 10 of interference fit type.
When this end face 52a of the screw rod stroke limit block 52 towards screw 20 and screw 20 are towards preventing rotary spacing block 52
After the contact of this end face 25 and end face 51a of the cylindrical body 51 towards 20 this one end of screw are contacted with the hole bottom surface 23a of inner hole 23, silk
Bar anti-rotation limited block 53 is inserted into axial straight trough 24, to make to prevent rotary spacing block 50 from the one hand limiting screw rod 20 to the right
Movement travel (referring to fig. 2), on the other hand prevent screw rod 20 rotation can only move in a straight line.
Claims (3)
1. a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block, including screw rod and pass through rolling with the screw rod
The screw that pearl is meshed and the screw rod stroke limit block being fixed on described screw rod one end, which is characterized in that in the screw rod
The other end, which is fixed with one, prevents rotary spacing block, when it is described prevent rotary spacing block from engaging with the screw when, the anti-rotation stop
On the one hand dynamic limited block limits the stroke of the screw rod, on the other hand prevent screw rod rotation from can only move in a straight line.
2. as described in claim 1 a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block, feature exists
In being provided with a step inner hole, the screw rod stroke limit towards this one end of the screw rod stroke limit block in the screw
The periphery of block is a Step Shaft, described when the step face contact in the step surface of the Step Shaft and the step inner hole
Screw rod stroke limit block and screw cooperation limit the stroke of the screw rod in one direction.
3. as described in claim 1 a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block, feature exists
In preventing this one end of rotary spacing block from offering an inner hole towards described in the screw, be arranged on the periphery of the inner hole
There is axial straight trough, the opening of the axial direction straight trough prevents rotary spacing block towards described；It is described to prevent rotary spacing block from including one
Cylindrical body is provided with the screw rod stroke limit block to extend radially outwardly and the limit of screw rod anti-rotation on the excircle of the cylindrical body
Block, when this end face of the screw rod stroke limit block towards the screw prevents rotary spacing block towards described with the screw
The contact of this end face and the cylinder surface are described to after the bottom hole face contact of the end face and the inner hole of described this one end of screw
Screw rod anti-rotation limited block is inserted into the axial straight trough, to make the row for preventing rotary spacing block from the one hand limiting the screw rod
On the other hand journey prevents screw rod rotation from can only move in a straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822174473.XU CN209458364U (en) | 2018-12-24 | 2018-12-24 | It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822174473.XU CN209458364U (en) | 2018-12-24 | 2018-12-24 | It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209458364U true CN209458364U (en) | 2019-10-01 |
Family
ID=68041930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822174473.XU Active CN209458364U (en) | 2018-12-24 | 2018-12-24 | It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209458364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458437A (en) * | 2018-12-24 | 2019-03-12 | 慈兴集团有限公司 | It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block |
-
2018
- 2018-12-24 CN CN201822174473.XU patent/CN209458364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458437A (en) * | 2018-12-24 | 2019-03-12 | 慈兴集团有限公司 | It is a kind of with the reinforced ball wire bar pair of flange for preventing rotary spacing block |
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