CN202673194U - Rat hole clamping device for petroleum drilling machine - Google Patents
Rat hole clamping device for petroleum drilling machine Download PDFInfo
- Publication number
- CN202673194U CN202673194U CN 201220268284 CN201220268284U CN202673194U CN 202673194 U CN202673194 U CN 202673194U CN 201220268284 CN201220268284 CN 201220268284 CN 201220268284 U CN201220268284 U CN 201220268284U CN 202673194 U CN202673194 U CN 202673194U
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- CN
- China
- Prior art keywords
- rat hole
- ear seat
- half portion
- latter half
- clamping device
- 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 discloses a rat hole clamping device for a petroleum drilling machine. The rat hole clamping device comprises a shell. The shell comprises an upper half portion and a lower half portion, concentric through holes are arranged in middles of the upper half portion and the lower half portion, the upper half portion is connected with a rat hole in a seam allowance manner, the lower half portion is in flange connection with a lower section of the rat hole by bolts, the left side and the right side of the lower half portion are respectively connected with two groups of parallel lugs I and II, and the lugs I and the lugs II are respectively fixedly connected with the lower half portion by a plurality of hexagon headed bolts with holes on heads; two hydraulic cylinders are respectively arranged in longitudinal cavities of the lugs I and the lugs II, and an end of a piston rod of the left hydraulic cylinder and an end of a piston rod of the right hydraulic cylinder are respectively inwardly connected with two slider assemblies; and sliders in the two slider assemblies are provided with tong teeth facing axle centers of the slider assemblies. The rat hole clamping device has the advantages that the drilling tool clamping range is enlarged, the rat hole clamping device is convenient to install and detach, and is not required to be detached when not working, and work efficiency is improved.
Description
Technical field
The utility model belongs to the oil drilling equipment technical field, relates to a kind of oil-well rig rat hole gripping mechanism.
Background technology
At present, the rat hole gripping mechanism that oil-well rig usually adopts, because the project organization restriction, this device has the following disadvantages: the one, drilling rod that can only clamping 4-1/2 "～5 " adapts to clamping drilling tool scope little; The 2nd, can only be welded on the rat hole, install and dismounting inconvenient, can not integral demounting; The 3rd, can only be installed on the drilling floor surface, the space that takies is larger.
Summary of the invention
The purpose of this utility model provides a kind of oil-well rig rat hole gripping mechanism, solves structure of the prior art and arranges unreasonablely, and clamping drilling tool scope is little, and the problem of dismounting inconvenience is installed.
The technical scheme that the utility model adopts is, a kind of oil-well rig rat hole gripping mechanism, comprise housing, housing comprises the first half and the latter half, the centre position of the first half and the latter half has concentric through hole, adopt seam to be connected between the first half and the rat hole, the latter half adopts and saves flange under bolt and the rat hole and be connected;
The left and right sides of the latter half separately ear seat parallel with a group connects, and the ear seat of both sides is ear seat I and ear seat II, and ear seat I and ear seat II are connected and fixed by a plurality of turret head head eye bolts and the latter half respectively; Be respectively arranged with a hydraulic jack in vertical cavity of ear seat I and ear seat II, the hydraulic cylinder piston rod termination of the left and right sides inwardly is connected with a slide block assembly respectively; Slide block in two slide block assemblies is provided with the pincers tooth towards the axle center.
The beneficial effects of the utility model are, have enlarged the scope of clamping drilling tool, install and convenient disassembly, when not working, also do not need dismounting, have improved operating efficiency.
Description of drawings
To be oil-well rig of the present utility model remove top view after the case top lid with the rat hole gripping mechanism to Fig. 1;
Fig. 2 is rat hole gripping mechanism front view of the present utility model;
Fig. 3 is the A-A direction sectional view among Fig. 2;
Fig. 4 is the B-B direction sectional view among Fig. 2;
Fig. 5 is the front view of the slide block assembly 2 in the utility model device;
Fig. 6 is the sectional view of the slide block assembly 2 in the utility model device;
Fig. 7 is the top view of the slide block assembly 2 in the utility model device.
Among the figure, 1. housing; 2. slide block assembly; 3. ear seat I; 4. ear seat II; 5. nameplate assembly; 6. hydraulic jack; 7. stainless steel wire; 8. turret head head eye bolt; 9. hexagon thin nut; 10. spring washer one; 11. cottor pin, 12. pincers teeth; 13. slide block; 14. hexagon socket cap head screw; 15. spring washer two.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, oil-well rig of the present utility model with rat hole gripping mechanism structure is, comprise housing 1, housing 1 comprises the first half and the latter half, the centre position of the first half and the latter half has concentric through hole, adopt seam to be connected between the first half and the rat hole, the latter half adopts bolt to be connected with joint flange under the rat hole, the left and right sides of the latter half separately ear seat parallel with a group connects (being ear seat I 3 and ear seat II 4), ear seat I 3 and ear seat II 4 are connected and fixed with the latter half by a plurality of turret head head eye bolts 8 respectively, each turret head head eye bolt 8 all is equipped with spring washer 1, two adjacent turret head head eye bolt 8 heads are connected by stainless steel wire 7, play locking effect, reach the purpose of reliable insurance; Be respectively arranged with a hydraulic jack 6 in vertical cavity of ear seat I 3 and ear seat II 4, hydraulic jack 6 piston rod ends of the left and right sides inwardly are connected with a slide block assembly 2 respectively, piston rod end is provided with hexagon thin nut 9 and cottor pin 11, play equally locking effect, reach the purpose of reliable insurance; Slide block 12 in two slide block assemblies 2 is provided with the pincers tooth 13 towards the axle center, and its clamping drilling tool scope is that 2-7/8 "～9-3/4 " (73～248mm), install and use when being used for different drilling tool clamping, and accommodation is than the obvious expansion of existing apparatus by correspondence.
Be provided with nameplate assembly 5 on ear seat I 3 or the ear seat II 4.
The form that the mode of being fixed and clamped of the pincers tooth 13 in the slide block assembly 2 adopts hexagon socket cap head screw 14 and spring washer 15 thereof to cooperate also can adopt other other form to compress, such as the crimper tooth.
Oil-well rig of the present utility model can be realized integral demounting with the rat hole gripping mechanism, adopt seam to be connected between the first half and the rat hole, the latter half adopts bolt to be connected with joint flange under the rat hole, is fixed by nut, spring washer, and the mode of iron wire locking realizes insurance.Oil-well rig of the present utility model rat hole gripping mechanism adopts the direct-push structure of left and right hydraulic jack 6, and operating principle is simpler.
Oil-well rig of the present utility model with the course of work of rat hole gripping mechanism is:
Drilling tool is put into rat hole, at first contacts with housing 1, and then hydraulic jack 6 begins to promote slide block assembly 2 and inwardly advances, and realizes the purpose of clamping drilling tool.The effect of connecting fluid compressing cylinder 6 and housing 1 is played in this process middle ear seat I 3, ear seat II 4, stainless steel wire 7, turret head head eye bolt 8, hexagon thin nut 9, spring washer 10, cottor pin 11 etc.
During work, save on housing 1 the first half and the rat hole and be connected by seam, save under housing 1 the latter half and the rat hole and be connected by bolt, hexagon thin nut 9 and spring washer 10 play locking and locking effect.This rat hole gripping mechanism cooperates the top to drive common clamping drilling tool, finishes the upper shackle function of drilling tool.If during the shackle drilling tool, only need hydraulic jack 6 band movable slider assemblies 2 return the two ends initial position on the use iron driller, so that be in the opening maximum rating between two pincers teeth 13, just can not affect the upper shackle action of drilling tool.If when needing this rat hole gripping mechanism of dismounting, the first half firmly proposes to save on the rat hole, the dismantle bolt, hexagon thin nut 9, the spring washer 10 that are connected with joint under the rat hole of the latter half gets final product.
Claims (4)
1. oil-well rig rat hole gripping mechanism, it is characterized in that: comprise housing (1), housing (1) comprises the first half and the latter half, the centre position of the first half and the latter half has concentric through hole, adopt seam to be connected between the first half and the rat hole, the latter half adopts and saves flange under bolt and the rat hole and be connected;
The left and right sides of the latter half separately ear seat parallel with a group connects, and the ear seat of both sides is ear seat I(3) and ear seat II (4), ear seat I(3) and ear seat II (4) be connected and fixed by a plurality of turret head head eye bolts (8) and the latter half respectively; Ear seat I(3) and be respectively arranged with a hydraulic jack (6) in vertical cavity of ear seat II (4), the hydraulic jack of the left and right sides (6) piston rod end inwardly is connected with a slide block assembly (2) respectively; Slide block (12) in two slide block assemblies (2) is provided with the pincers tooth (13) towards the axle center.
2. oil-well rig according to claim 1 rat hole gripping mechanism, it is characterized in that: described hydraulic jack (6) piston rod end is provided with hexagon thin nut (9) and cottor pin (11).
3. oil-well rig according to claim 1 rat hole gripping mechanism, it is characterized in that: the two ends of described turret head head eye bolt (8) is provided with spring washer (10) and stainless steel wire (7).
4. oil-well rig according to claim 1 rat hole gripping mechanism is characterized in that: the form that the mode of being fixed and clamped of described pincers tooth (13) adopts hexagon socket cap head screw (14) and spring washer (15) thereof to cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268284 CN202673194U (en) | 2012-06-08 | 2012-06-08 | Rat hole clamping device for petroleum drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220268284 CN202673194U (en) | 2012-06-08 | 2012-06-08 | Rat hole clamping device for petroleum drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673194U true CN202673194U (en) | 2013-01-16 |
Family
ID=47494105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220268284 Expired - Fee Related CN202673194U (en) | 2012-06-08 | 2012-06-08 | Rat hole clamping device for petroleum drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673194U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720445A (en) * | 2012-06-08 | 2012-10-10 | 宝鸡石油机械有限责任公司 | Mousehole clamping device for petroleum drilling machine |
| CN104763354A (en) * | 2015-03-24 | 2015-07-08 | 淮南矿业(集团)有限责任公司 | Hole sealing pipe clamping device |
| CN109138871B (en) * | 2018-07-31 | 2021-11-30 | 中石化石油工程技术服务有限公司 | Hydraulic clamping and lifting device for rat hole of drilling tool |
| CN114233200A (en) * | 2021-12-21 | 2022-03-25 | 刘皓 | Drilling device for natural gas geology and drilling method thereof |
-
2012
- 2012-06-08 CN CN 201220268284 patent/CN202673194U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720445A (en) * | 2012-06-08 | 2012-10-10 | 宝鸡石油机械有限责任公司 | Mousehole clamping device for petroleum drilling machine |
| CN104763354A (en) * | 2015-03-24 | 2015-07-08 | 淮南矿业(集团)有限责任公司 | Hole sealing pipe clamping device |
| CN109138871B (en) * | 2018-07-31 | 2021-11-30 | 中石化石油工程技术服务有限公司 | Hydraulic clamping and lifting device for rat hole of drilling tool |
| CN114233200A (en) * | 2021-12-21 | 2022-03-25 | 刘皓 | Drilling device for natural gas geology and drilling method thereof |
| CN114233200B (en) * | 2021-12-21 | 2022-07-19 | 刘皓 | Drilling device for natural gas geology and drilling method thereof |
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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: 20130116 Termination date: 20160608 |