CN203891800U - Normally-closed hydraulic chuck with quick-change slip - Google Patents
Normally-closed hydraulic chuck with quick-change slip Download PDFInfo
- Publication number
- CN203891800U CN203891800U CN201420271658.1U CN201420271658U CN203891800U CN 203891800 U CN203891800 U CN 203891800U CN 201420271658 U CN201420271658 U CN 201420271658U CN 203891800 U CN203891800 U CN 203891800U
- Authority
- CN
- China
- Prior art keywords
- slips
- slip
- hydraulic chuck
- bearing
- crossbeam
- 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 - Lifetime
Links
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 7
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model designs a normally-closed hydraulic chuck with a quick-change slip. The normally-closed hydraulic chuck comprises a slip shaft disposed in a beam; a bearing end cap, a radial bearing, an oil baffle disc, a base plate, belleville springs, a washer, a pressure ring, a snap ring, a slip unit, a thrust bearing, a piston, a pressure cap, a bushing block, a protective ring and an end cap are disposed on the slip shaft sequentially from bottom to top; the bearing end cap is fixed to the lower end face of the beam through a fastener; the protective ring is fixed on the upper end face of the beam through another fastener; an oil cavity is arranged between the piston and the pressure cap; an oil incoming connector is arranged on the beam and communicated with the oil cavity; the snap ring and the slip unit form a slope mechanism. The normally-closed hydraulic chuck with the quick-change slip has the advantages that the slip is replaced quickly, time of assisting a drill rig is shortened, labor intensity is reduced, operation is simplified, reliability of the chuck is improved, drilling efficiency is improved, and cost of spare parts of the drill rig is reduced.
Description
Technical field
The utility model belongs to boring mechanic equipment technical field, is specifically related to a kind of constant-closed type hydraulic chuck of quick change slips.
Background technology
Boring mechanic equipment (abbreviation rig) is to be mainly used in colliery down hole drill, hydroelectric project probing, the Special drilling equipment of dam, bridge, tunnel basis drilled grout hole etc.
At present the most of oild chuck structure of underground drill rig slips is interior, and dish spring outside, is changed slips in creeping into work and relatively wasted time and energy actual, changes slips more difficult while particularly having drilling rod; Also the oild chuck structure dish spring having is interior, and slips outside, has facilitated although change slips, and because three elongated slots of slips axle are open, the bolt that slips axle is connected with protective cover is fracture often in the work of creeping into, and need to often change.Because drill configuration is perfect not, and affect the operating efficiency of rig.
Utility model content
The purpose of this utility model is to provide a kind of constant-closed type hydraulic chuck of quick change slips, can not easy disassembly slips to overcome existing rig, the technological deficiency of connecting bolt fracture, improves the reliability of rig, improve the service efficiency of rig, reduce the expense of rig standby redundancy.
In order to achieve the above object, the constant-closed type hydraulic chuck of the designed quick change slips of the utility model, comprise slips axle, described slips axle is arranged in crossbeam, on slips axle, be provided with successively from the bottom to top bearing (ball) cover, radial bearing, oil baffle disc, backing plate, disk spring, packing ring, pressure ring, collar, slip assemblies, thrust bearing, piston, gland, core-compensating block, guard circle, end cap, and bearing (ball) cover is fixed by the lower surface of securing member and crossbeam, guard circle is fixed by the upper surface of securing member and crossbeam, between piston and gland, be provided with oil pocket, on crossbeam, be provided with fuel inlet fitting, fuel inlet fitting is communicated with oil pocket, described collar and slip assemblies composition oblique mechanism.
Described core-compensating block and slip assemblies arrange in the elongated slot of slips axle, and are fixed on and on slips axle, are formed normally closed type structure by guard circle.
Described pressure ring links into an integrated entity by securing member and collar, and the inside groove of pressure ring is embedded with guide ring.
The constant-closed type hydraulic chuck of the designed quick change slips of the utility model utilizes spring force holding drill pipe, under compressed dish-shaped-spring stack effect, promote the collar being connected in one with pressure ring, collar and slip assemblies composition oblique mechanism, promote slip assemblies footpath by oblique mechanism and inwardly move, thereby clamp borer drill rod.Utilize hydraulic coupling to unclamp drilling rod, hydraulic oil enters the cavity being made up of piston and gland from fuel inlet fitting, promotes the downward jack-up collar of piston, and the T-shaped groove of collar pulls slip assemblies, slip assemblies footpath is outwards moved, thereby unclamped drilling rod.In the time that needs are changed slips, as long as remove guard circle and core-compensating block, just can pull out slip assemblies.Have compact conformation, reliable operation, changes slips quick, and while particularly having drilling rod, the feature of fast changing slips is particularly outstanding.
The utility model is with respect to prior art, and its advantage is fast changing slips, shortens the non-cutting time of rig, reduces labour intensity, simple to operate, improves the reliability of oild chuck, improves probing operating efficiency, reduces the expense of rig standby redundancy.
Brief description of the drawings
The constant-closed type hydraulic chuck of Fig. 1 the utility model quick change slips.
Wherein: 1, slips axle; 2, bearing (ball) cover; 3, swivel nut; 4, crossbeam; 5, radial bearing; 6, oil baffle disc; 7, backing plate; 8, semicircular ring; 9, disk spring; 10, packing ring; 11, pressure ring; 12, thrust bearing; 13, piston; 14, gland; 15, slip assemblies; 16, collar; 17, vertical shaft; 18, fuel inlet fitting; 19, core-compensating block; 20, guard circle; 21, end cap; 22, guide ring; 23, bolt.
Detailed description of the invention
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
The constant-closed type hydraulic chuck of the quick change slips that the present embodiment is described; by swivel nut 3 and semicircular ring 8, slips axle 1 is arranged on vertical shaft 17; bearing (ball) cover 2, radial bearing 5, oil baffle disc 6, backing plate 7, disk spring 9, packing ring 10, pressure ring 11, collar 16, slip assemblies 15, thrust bearing 12, piston 13, gland 14, core-compensating block 19, guard circle 20, end cap 21 and seal are installed successively from top to bottom on slips axle 1; utilize securing member to be installed in crossbeam 4, fuel inlet fitting 18 is installed on crossbeam 4.
In three elongated slots on slips axle 1 in oild chuck, place core-compensating block 19 and slip assemblies 15, and guard circle 20 and slips axle 1 are linked together to composition normally closed type structure with bolt.
Pressure ring 11 in oild chuck utilizes bolt 23 that collar 16 is connected into one, and pressure ring 11 inside grooves are embedded with guide ring 22.
Claims (3)
1. the constant-closed type hydraulic chuck of a quick change slips, comprise slips axle, described slips axle is arranged in crossbeam, it is characterized in that: on slips axle, be provided with successively from the bottom to top bearing (ball) cover, radial bearing, oil baffle disc, backing plate, disk spring, packing ring, pressure ring, collar, slip assemblies, thrust bearing, piston, gland, core-compensating block, guard circle, end cap, and bearing (ball) cover is fixed by the lower surface of securing member and crossbeam, guard circle is fixed by the upper surface of securing member and crossbeam, between piston and gland, be provided with oil pocket, on crossbeam, be provided with fuel inlet fitting, fuel inlet fitting is communicated with oil pocket, described collar and slip assemblies composition oblique mechanism.
2. the constant-closed type hydraulic chuck of quick change slips according to claim 1, is characterized in that: described core-compensating block and slip assemblies arrange in the elongated slot of slips axle, and is fixed on and on slips axle, is formed normally closed type structure by guard circle.
3. the constant-closed type hydraulic chuck of quick change slips according to claim 1 and 2, is characterized in that: described pressure ring links into an integrated entity by securing member and collar, and the inside groove of pressure ring is embedded with guide ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271658.1U CN203891800U (en) | 2014-05-23 | 2014-05-23 | Normally-closed hydraulic chuck with quick-change slip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271658.1U CN203891800U (en) | 2014-05-23 | 2014-05-23 | Normally-closed hydraulic chuck with quick-change slip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891800U true CN203891800U (en) | 2014-10-22 |
Family
ID=51718216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420271658.1U Expired - Lifetime CN203891800U (en) | 2014-05-23 | 2014-05-23 | Normally-closed hydraulic chuck with quick-change slip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203891800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790884A (en) * | 2015-02-13 | 2015-07-22 | 杭州祥龙钻探设备科技股份有限公司 | Normally-closed strip-shaped slip chuck for small cylinder spring set |
| CN105134106A (en) * | 2015-08-18 | 2015-12-09 | 安徽贝利机械制造有限公司 | Automatic centering hydraulic chuck device for core drills |
-
2014
- 2014-05-23 CN CN201420271658.1U patent/CN203891800U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790884A (en) * | 2015-02-13 | 2015-07-22 | 杭州祥龙钻探设备科技股份有限公司 | Normally-closed strip-shaped slip chuck for small cylinder spring set |
| CN105134106A (en) * | 2015-08-18 | 2015-12-09 | 安徽贝利机械制造有限公司 | Automatic centering hydraulic chuck device for core drills |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |