CN204755807U - Lead screw - Google Patents
Lead screw Download PDFInfo
- Publication number
- CN204755807U CN204755807U CN201520472969.9U CN201520472969U CN204755807U CN 204755807 U CN204755807 U CN 204755807U CN 201520472969 U CN201520472969 U CN 201520472969U CN 204755807 U CN204755807 U CN 204755807U
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- lead screw
- groove
- barb
- screw
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a lead screw, including lead screw body and connecting rod, the screw portion of the one end of lead screw body for being equipped with the external screw thread, the other end of lead screw body is equipped with connecting portion, is equipped with a chip groove and a axial through in the screw portion and is the oil groove that adds that the corrugate set up, and connecting portion comprise a plurality of connecting blocks that are the circumference equipartition, and the inner of connecting block is connected with lead screw body integrated into one piece, and the outer end of connecting block is equipped with the barb, be equipped with the confession on the connecting rod connecting portion male connecting hole on the lead screw body, just on the lateral wall of connecting hole still along the linear equipartition of axis direction have a plurality of with the barb forms to collude joins in marriage fixed slot. Adopt above -mentioned structure, the piece that does benefit to the production that is provided with of chip groove is in time discharged, simultaneously, people's accessible is toward refueling the next life who effectively prolongs lead screw of inslot oil addition, and in addition, people still can realize the flexible regulation of the whole length of lead screw to make lead screw can be applicable to more extensive application scenario.
Description
Technical field
The utility model relates to a kind of screw mandrel.
Background technique
At present, screw mandrel is widely used in the machinery of every field, but existing screw mandrel is integrate shaped type structure, and its length cannot regulate, thus there is narrow limitation in practical application.Meanwhile, existing screw mandrel after mounting, is difficult to add lubricant oil thereon, thus greatly shortens the working life of screw mandrel.In addition, the outside thread of existing screw mandrel lacks corresponding chip discharging structure, the chip therefore causing transmission to produce cannot be discharged in time, thus will affect the normal transmission of screw mandrel when chip deposits.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of band groove and adds oil groove and length-adjustable screw mandrel.
For achieving the above object, the utility model provides a kind of screw mandrel, include screw mandrel body and connecting rod, one end of described screw mandrel body is for being provided with externally threaded screw section, the other end of described screw mandrel body is provided with joint, described screw section is connected by an annular lug with between joint, and the external diameter of described annular lug is greater than the external diameter of joint and screw section, described screw section be provided with groove and axis through and arrange in corrugated add oil groove, described annular lug is evenly distributed in many topping-up passages, and the inner of described topping-up passage is communicated with the described oil groove that adds, the outer end of described topping-up passage is fixed with plug screw, described joint is made up of some circumferentially uniform contiguous blocks, the inner of described contiguous block is connected with this body by integral forming of screw mandrel, the outer end of described contiguous block is provided with barb, one end of described connecting rod is provided with installation keyway, the other end of described connecting rod is provided with the attachment hole inserted for the joint on described screw mandrel body, and the sidewall of described attachment hole is also linearly evenly equipped with in the axial direction several and described barb and is formed to hook and join fixing groove.
The beneficial effects of the utility model are: adopt said structure, and first because the utility model is provided with groove on the screw section of screw mandrel, the chip being therefore conducive to producing is discharged in time.Simultaneously, axially throughly oil groove is added because the utility model is provided with on the screw section of screw mandrel, and correspondence is provided with and the described topping-up passage adding oil groove and be connected on annular lug, therefore after screw mandrel assembling, people by adding lubricant oil in topping-up passage, thus make lubricant oil flow through adding in oil groove of axial through wire rod thread portion, and then make wire rod thread portion more smooth and easy in transmission process, and effectively extend the working life of screw mandrel body.Secondly, because screw mandrel provided by the utility model is that the screw mandrel body that arranged by split and connecting rod are formed, therefore join fixing by the hook of diverse location groove on contiguous block barb on screw mandrel body and connecting rod, the telescopic adjustment of screw mandrel entire length can be realized, thus make screw mandrel can be applicable to application widely.
The cross section that the utility model can be set to described groove further can, for triangular structure wide outside and narrow inside, can certainly be trapezium structure wide outside and narrow inside.
It is radial through on the outer peripheral surface of connecting rod that the utility model also can be set to described groove further.Such setting, not only can make to be formed between barb and groove hook more solid and reliablely join fixing, and the assembly connection be conducive between barb and groove or fractionation.
The utility model also can be set to described contiguous block further and be preferably two pieces, and has clamped Compress Spring between two pieces of contiguous blocks.Such setting, under the effect of Compress Spring, can effectively prevent barb from skidding off in groove.
The utility model also can be set to described Compress Spring correspondence further and be positioned at the inner side that contiguous block is provided with barb, and the inner side that described contiguous block is provided with barb is also provided with the projection of stationary positioned Compress Spring.Such setting, can make the spring energy of Compress Spring directly act on barb, and the setting of projection, then can form stationary positioned effectively to Compress Spring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is wherein a kind of A-A sectional drawing of Fig. 1;
Fig. 3 is the another kind of A-A sectional drawing of Fig. 1.
Embodiment
Give a kind of screw mandrel as shown in Figure 1, include screw mandrel body 1 and connecting rod 2, one end of described screw mandrel body 1 is for being provided with externally threaded screw section 14, the other end of described screw mandrel body 1 is provided with joint, described screw section 14 is connected by an annular lug 15 with between joint, and the external diameter of described annular lug 15 is greater than the external diameter of joint and screw section 14, described screw section 14 be provided with groove 141 and axis through and arrange in corrugated add oil groove 142, the cross section of described groove 141 can be triangular structure wide outside and narrow inside as shown in Figure 2, certainly also can be trapezium structure wide outside and narrow inside as shown in Figure 3.Described annular lug 15 is evenly distributed in many topping-up passages 151, and the inner of described topping-up passage 151 is communicated with the described oil groove 142 that adds, the outer end of described topping-up passage 151 is fixed with plug screw 4, described joint is made up of some circumferentially uniform contiguous blocks 11, the inner of described contiguous block 11 is connected with screw mandrel body 1 is one-body molded, the outer end of described contiguous block 11 is provided with barb 12, one end of described connecting rod 2 is provided with installs keyway 21, the other end of described connecting rod 2 is provided with the attachment hole 22 inserted for the joint on described screw mandrel body 1, and the sidewall of described attachment hole 22 is also linearly evenly equipped with in the axial direction several and described barb 12 and is formed to hook and join fixing groove 23, and described groove 23 is radial through on the outer peripheral surface of connecting rod 2.
Described contiguous block 11 is preferably two pieces, and has clamped Compress Spring 3 between two pieces of contiguous blocks 11.Described Compress Spring 3 correspondence is positioned at the inner side that contiguous block 11 is provided with barb 12, and the inner side that described contiguous block 11 is provided with barb 12 is also provided with the projection 13 of stationary positioned Compress Spring 3.
Adopt said structure, first because the utility model is provided with groove 141 on the screw section 14 of screw mandrel, the chip being therefore conducive to producing is discharged in time.Simultaneously, axially throughly oil groove 142 is added because the utility model is provided with on the screw section 14 of screw mandrel, and correspondence is provided with and the described topping-up passage 151 adding oil groove 142 and be connected on annular lug 15, therefore after screw mandrel assembling, people by adding lubricant oil in topping-up passage 151, thus make lubricant oil flow through adding in oil groove 142 of axial through wire rod thread portion 14, and then make wire rod thread portion 14 more smooth and easy in transmission process, and effectively extend the working life of screw mandrel body 1.Secondly, because screw mandrel provided by the utility model is that the screw mandrel body 1 that arranged by split and connecting rod 2 are formed, therefore join fixing by contiguous block barb on screw mandrel body 1 12 and the hook of diverse location groove 23 on connecting rod 2, the telescopic adjustment of screw mandrel entire length can be realized, thus make screw mandrel can be applicable to application widely.
Claims (6)
1. a screw mandrel, it is characterized in that: include screw mandrel body and connecting rod, one end of described screw mandrel body is for being provided with externally threaded screw section, the other end of described screw mandrel body is provided with joint, described screw section is connected by an annular lug with between joint, and the external diameter of described annular lug is greater than the external diameter of joint and screw section, described screw section be provided with groove and axis through and arrange in corrugated add oil groove, described annular lug is evenly distributed in many topping-up passages, and the inner of described topping-up passage is communicated with the described oil groove that adds, the outer end of described topping-up passage is fixed with plug screw, described joint is made up of some circumferentially uniform contiguous blocks, the inner of described contiguous block is connected with this body by integral forming of screw mandrel, the outer end of described contiguous block is provided with barb, one end of described connecting rod is provided with installation keyway, the other end of described connecting rod is provided with the attachment hole inserted for the joint on described screw mandrel body, and the sidewall of described attachment hole is also linearly evenly equipped with in the axial direction several and described barb and is formed to hook and join fixing groove.
2. a kind of screw mandrel according to claim 1, is characterized in that: the cross section of described groove is triangular structure wide outside and narrow inside.
3. a kind of screw mandrel according to claim 1, is characterized in that: the cross section of described groove is trapezium structure wide outside and narrow inside.
4. a kind of screw mandrel according to claim 1, is characterized in that: described groove is radial through on the outer peripheral surface of connecting rod.
5. a kind of screw mandrel according to claim 1, is characterized in that: described contiguous block is two pieces, and has clamped Compress Spring between two pieces of contiguous blocks.
6. a kind of screw mandrel according to claim 5, is characterized in that: described Compress Spring correspondence is positioned at the inner side that contiguous block is provided with barb, and the inner side that described contiguous block is provided with barb is also provided with the projection of stationary positioned Compress Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472969.9U CN204755807U (en) | 2015-06-30 | 2015-06-30 | Lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472969.9U CN204755807U (en) | 2015-06-30 | 2015-06-30 | Lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755807U true CN204755807U (en) | 2015-11-11 |
Family
ID=54470515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520472969.9U Expired - Fee Related CN204755807U (en) | 2015-06-30 | 2015-06-30 | Lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755807U (en) |
-
2015
- 2015-06-30 CN CN201520472969.9U patent/CN204755807U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160630 |