CN204113107U - Unit head card slot type fixed mechanism - Google Patents
Unit head card slot type fixed mechanism Download PDFInfo
- Publication number
- CN204113107U CN204113107U CN201420522430.5U CN201420522430U CN204113107U CN 204113107 U CN204113107 U CN 204113107U CN 201420522430 U CN201420522430 U CN 201420522430U CN 204113107 U CN204113107 U CN 204113107U
- Authority
- CN
- China
- Prior art keywords
- slips
- out against
- fixed block
- annular slot
- hold out
- 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 relates to drilling rig technique field, specifically a kind of unit head card slot type fixed mechanism.It comprises the disc spring be enclosed within main shaft, and the front end of disc spring is against on slip sleeve; Evenly be provided with three slips in slip sleeve, the front end of slips is provided with the three-jaw collar for carrying out axial restraint to it; It also comprises an annular slot be arranged on main shaft and three-jaw collar external surface, and be provided with the multiple fixed blocks relative with each slips front end face in annular slot, described fixed block is spacing in described annular slot; Described each fixed block is provided with axial screwed hole, is provided with in screwed hole and holds out against screw for what hold out against slips, described in hold out against between screw and slips and be also provided with one for playing the buffer stopper of cushioning effect.Its structure is simple, convenient, can ensure that three-jaw collar holds out against slips, also can hold out against compensation to a slips separately, is provided with buffer stopper thus can extends application life of product for a long time.
Description
Technical field
The utility model relates to drilling rig technique field, specifically a kind of unit head card slot type fixed mechanism.
Background technology
Drill power head slips fixed mechanism is the vitals of rig, and rig is drill forward by 3 slips clamping drilling rods of unit head front end in the process of drilling, and 3 slips are by three-jaw collar axial restraint.During operation, slips constantly need be opened, clamp, and has very high requirement to the reliability of slips fixed mechanism.But current three-jaw collar can not meet the requirement reliably holding out against slips for a long time.
Slips is constantly opened, can produce certain impact when clamping, and existing mechanism does not have corresponding buffer.Rig has certain wearing and tearing through each part of long working, and cause the not tight slips in three-jaw collar top, loosening appears in slips, cannot compensate and hold out against; And in the process of processing, there is error in length due to three slips, existing mechanism cannot compensate a slips separately and hold out against.These problems all cause drilling rod normally to work above.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of unit head card slot type fixed mechanism, and its structure is simple, convenient, can ensure that three-jaw collar holds out against slips, is provided with buffer thus can extends application life of product for a long time.
Unit head card slot type fixed mechanism of the present utility model, comprises the disc spring be enclosed within main shaft, and the front end of described disc spring is against on slip sleeve; Evenly be provided with three slips in described slip sleeve, the front end of described slips is provided with the three-jaw collar for carrying out axial restraint to it; It also comprises an annular slot be arranged on main shaft and three-jaw collar external surface, and be provided with that match with annular slot, relative with each slips front end face multiple fixed blocks in described annular slot, described fixed block is spacing in described annular slot; Described each fixed block is provided with axial screwed hole, is provided with in described screwed hole and holds out against screw for what hold out against slips, described in hold out against between screw and slips and be also provided with one for playing the buffer stopper of cushioning effect.
Described holding out against on screw has additional a nut, for playing locking effect.
Described fixed block be also provided with between nut one with the stop collar of the annular matched of fixed block, described stop collar is provided with one section of barrel matched with the external diameter of fixed block, spacing more reliably for carrying out fixed block.
The utility model structure is simple, holds out against screw just can realize holding out against slips, because each collar of three-jaw collar is provided with hold out against screw, so also can hold out against compensation to a slips separately by adjustment.Be provided with buffer stopper thus application life of product can be extended.After adopting said structure, can cost of production be reduced, reduce labor strength, improve drill effect and efficiency.
Accompanying drawing explanation
Fig. 1 is installation site of the present utility model schematic diagram;
Fig. 2 is the enlarged drawing of Fig. 1 at A place.
Detailed description of the invention
below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in the figure, a kind of unit head card slot type fixed mechanism, comprises the disc spring 2 be enclosed within main shaft 1, and the front end of described disc spring 2 is against on slip sleeve 3; Evenly be provided with three slips 4 in described slip sleeve 3, the front end of described slips 4 is provided with the three-jaw collar 5 for carrying out axial restraint to it; It also comprises an annular slot be arranged on main shaft 1 and three-jaw collar 5 external surface, be provided with that match with annular slot, relative with each slips front end face multiple fixed blocks 6 in described annular slot, described fixed block 6 is spacing in described annular slot; Described each fixed block 6 is provided with axial screwed hole, is provided with in described screwed hole and holds out against screw 7 for what hold out against slips 4, described in hold out against between screw 7 and slips 4 and be also provided with one for playing the buffer stopper 8 of cushioning effect.
Described holding out against on screw 7 has additional a nut 10.
Described fixed block 6 be also provided with between nut 10 one with the stop collar 9 of the annular matched of fixed block 6, described stop collar 9 is provided with one section of barrel matched with the external diameter of fixed block 6.
Claims (3)
1. a unit head card slot type fixed mechanism, comprises the disc spring (2) be enclosed within main shaft (1), and the front end of described disc spring (2) is against on slip sleeve (3); Evenly be provided with three slips (4) in described slip sleeve (3), the front end of described slips (4) is provided with the three-jaw collar (5) for carrying out axial restraint to it; It is characterized in that: it also comprises an annular slot be arranged on main shaft (1) and three-jaw collar (5) external surface, be provided with that match with annular slot, relative with each slips front end face multiple fixed blocks (6) in described annular slot, described fixed block (6) is spacing in described annular slot; Described each fixed block (6) is provided with axial screwed hole, be provided with in described screwed hole and hold out against screw (7) for what hold out against slips (4), described in hold out against between screw (7) and slips (4) and be also provided with one for playing the buffer stopper (8) of cushioning effect.
2. unit head card slot type fixed mechanism according to claim 1, is characterized in that: described in hold out against on screw (7) and have additional a nut (10).
3. unit head card slot type fixed mechanism according to claim 1, it is characterized in that: be also provided with between described fixed block (6) with nut (10) one with the stop collar (9) of the annular matched of fixed block (6), described stop collar (9) is provided with one section of barrel matched with the external diameter of fixed block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522430.5U CN204113107U (en) | 2014-09-12 | 2014-09-12 | Unit head card slot type fixed mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522430.5U CN204113107U (en) | 2014-09-12 | 2014-09-12 | Unit head card slot type fixed mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113107U true CN204113107U (en) | 2015-01-21 |
Family
ID=52330432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420522430.5U Expired - Fee Related CN204113107U (en) | 2014-09-12 | 2014-09-12 | Unit head card slot type fixed mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775752A (en) * | 2015-04-24 | 2015-07-15 | 西安科技大学 | Light full-hydraulic multifunctional drilling machine power head |
-
2014
- 2014-09-12 CN CN201420522430.5U patent/CN204113107U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775752A (en) * | 2015-04-24 | 2015-07-15 | 西安科技大学 | Light full-hydraulic multifunctional drilling machine power head |
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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: 20150121 Termination date: 20170912 |