CN204371148U - A kind of novel hydraulic chuck - Google Patents
A kind of novel hydraulic chuck Download PDFInfo
- Publication number
- CN204371148U CN204371148U CN201520005822.9U CN201520005822U CN204371148U CN 204371148 U CN204371148 U CN 204371148U CN 201520005822 U CN201520005822 U CN 201520005822U CN 204371148 U CN204371148 U CN 204371148U
- Authority
- CN
- China
- Prior art keywords
- end cap
- chuck
- jaw components
- inner cone
- annular piston
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of gripping mechanism, is specifically to adapt to a kind of novel hydraulic chuck on full-hydraulic power head drill, there is provided a kind of dovetail slip and inner cone end cap of adopting to coordinate the novel hydraulic chuck clamping drilling rod, this novel hydraulic chuck long service life, clamping force is large, easily easy to operate during replacing slips, comprise antirotation keys, inner cone end cap, jaw components, rollback spring, cylinder barrel, annular piston, chuck end cap and having strong market potential, described cylinder barrel, annular piston and chuck end cap form monolateral pliable pressure cavity volume, described jaw components, rollback spring and annular piston composition pass clamping force element, in one group of cylindrical hole of described rollback spring fitting on jaw components and inner cone end cap, described jaw components coordinates with the inner conical surface on inner cone end cap to be installed, antirotation keys is arranged on inner cone end cap, the axial gap meeting jaw components stroke is set between described annular piston and chuck end cap, the utility model is mainly used in rig aspect.
Description
Technical field
The utility model relates to a kind of gripping mechanism, is specifically to adapt to a kind of novel hydraulic chuck on full-hydraulic power head drill, being usually connected with the power head output shaft of rig, for clamping kelly, making the transmission of torque of unit head to drilling tool in hole.
Background technology
Oild chuck is in the past rubber oild chuck normally, and the modal failure mode of rubber oild chuck is the damage of packing element and slips, causes oild chuck short for application life; When changing packing element and slips, all needing oild chuck entirety to take apart, re-assemblying, this adds increased non-cutting time, reduce production efficiency.
Chuck is one of main executing agency of all-hydraulic drill, will ensure enough clamping forces, do not produce relative sliding between the drilling rod that guarantee is clamped and slips when its prerequisite basic function is clamping drilling rod.Be exactly that structure wants simple, and clamping force is large, long service life specifically; When rig has linkage function, require that the opening and closing movement of chuck and clamper is coordinated, after namely ensureing that one of them steps up drilling rod all the time, another mechanism unclamps again; Meanwhile, when unclamping, opening force is little, to reduce the size of spring; Meanwhile, also to ensure that operation will facilitate easily, to reduce non-cutting time when changing the slips of different size.Therefore, be necessary to improve prior art.
Utility model content
In order to overcome deficiency existing in prior art, provide a kind of dovetail slip and inner cone end cap of adopting to coordinate the novel hydraulic chuck clamping drilling rod, this novel hydraulic chuck long service life, clamping force is large, easily easy to operate during replacing slips.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of novel hydraulic chuck, comprise antirotation keys, inner cone end cap, jaw components, rollback spring, cylinder barrel, annular piston, chuck end cap and have strong market potential, described cylinder barrel, annular piston and chuck end cap form monolateral pliable pressure cavity volume, described jaw components, rollback spring and annular piston composition passes clamping force element, in one group of cylindrical hole of described rollback spring fitting on jaw components and inner cone end cap; Described jaw components coordinates with the inner conical surface on inner cone end cap to be installed, and antirotation keys is arranged on inner cone end cap.
The axial gap meeting jaw components stroke is set between described annular piston and chuck end cap.
The beneficial effect that the utility model is compared with prior art had is:
1, have employed the cooperation of dovetail slip and inner cone end cap, abandon traditional rubber oild chuck, thus solve the flimsy problem of packing element from root, thus considerably increase the application life of oild chuck.
2, when changing the slips of different specification size, only needing to lay down inner cone end cap, slips can be taken out, without the need to by oild chuck integral demounting, achieving the object of quick change.
3, by utilizing the wedging movement of dovetail slip to carry out holding drill pipe, the clamping force of oild chuck is considerably increased.
4, appearance and size is little, and opening pressure is low, and the pressure be conducive between each hydraulic branch is coordinated, and improves the efficiency of hydraulic system, when the linkage work with hydraulic gripper, ensure that the coordination of action.
Accompanying drawing explanation
Below by accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
In figure 1 for antirotation keys, 2 for inner cone end cap, 3 for jaw components, 4 for rollback spring, 5 for cylinder barrel, 6 for annular piston, 7 for chuck end cap, 8 for having strong market potential.
Detailed description of the invention
The utility model will be further described by reference to the accompanying drawings for embodiment below.
As shown in Figure 1, a kind of novel hydraulic chuck, comprise antirotation keys 1, inner cone end cap 2, jaw components 3, rollback spring 4, cylinder barrel 5, annular piston 6, chuck end cap 7 and have strong market potential 8, described cylinder barrel 5, annular piston 6 and chuck end cap 7 form monolateral pliable pressure cavity volume, described jaw components 3, rollback spring 4 and annular piston 6 composition passes clamping force element, and described rollback spring 4 is arranged in one group of cylindrical hole on jaw components 3 and inner cone end cap 2; Described jaw components 3 coordinates with the inner conical surface on inner cone end cap 2 to be installed, and does angle of wedge motion; Antirotation keys 1 is arranged on inner cone end cap 2, constrain jaw components 3 slide axially and, and prevent the pivot offset of jaw components 3.
Between described annular piston 6 and chuck end cap 7, the axial gap meeting jaw components 3 stroke is set.
Described jaw components 3 is without any one of specification.
Operating principle of the present invention is: when pressure oil enters pressure chamber, and under the effect of pressure oil, jaw components 3 and inner cone end cap 2 do the angle of wedge and move, and jaw components 3 inwardly slides, clamping drilling rod; After earth pressure release, under the effect of rollback spring 4, jaw components 3, to mobile, unclamps drilling rod in the other direction.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. a novel hydraulic chuck, it is characterized in that: comprise antirotation keys (1), inner cone end cap (2), jaw components (3), rollback spring (4), cylinder barrel (5), annular piston (6), chuck end cap (7) and have strong market potential (8), described cylinder barrel (5), annular piston (6) and chuck end cap (7) form monolateral pliable pressure cavity volume, described jaw components (3), rollback spring (4) and annular piston (6) composition passes clamping force element, and described rollback spring (4) is arranged in one group of cylindrical hole on jaw components (3) and inner cone end cap (2); Described jaw components (3) coordinates with the inner conical surface on inner cone end cap (2) to be installed, and antirotation keys (1) is arranged on inner cone end cap (2).
2. a kind of novel hydraulic chuck according to claim 1, is characterized in that: arrange the axial gap meeting jaw components (3) stroke between described annular piston (6) and chuck end cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005822.9U CN204371148U (en) | 2015-01-06 | 2015-01-06 | A kind of novel hydraulic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005822.9U CN204371148U (en) | 2015-01-06 | 2015-01-06 | A kind of novel hydraulic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371148U true CN204371148U (en) | 2015-06-03 |
Family
ID=53327377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520005822.9U Expired - Fee Related CN204371148U (en) | 2015-01-06 | 2015-01-06 | A kind of novel hydraulic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059943A (en) * | 2021-11-19 | 2022-02-18 | 中铁二院工程集团有限责任公司 | Synchronous rotating hydraulic chuck for kilometer-level horizontal rope drill rod |
-
2015
- 2015-01-06 CN CN201520005822.9U patent/CN204371148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059943A (en) * | 2021-11-19 | 2022-02-18 | 中铁二院工程集团有限责任公司 | Synchronous rotating hydraulic chuck for kilometer-level horizontal rope drill rod |
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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 |
Granted publication date: 20150603 Termination date: 20190106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |