CN204238857U - Split type interior injection reacting cycle rotary percussion drill bit - Google Patents
Split type interior injection reacting cycle rotary percussion drill bit Download PDFInfo
- Publication number
- CN204238857U CN204238857U CN201420682371.8U CN201420682371U CN204238857U CN 204238857 U CN204238857 U CN 204238857U CN 201420682371 U CN201420682371 U CN 201420682371U CN 204238857 U CN204238857 U CN 204238857U
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- CN
- China
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- drill bit
- lower contact
- bit body
- anvil block
- reverse circulation
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of split type interior injection reacting cycle rotary percussion drill bit, be made up of reverse circulation drill bit body, lower contact, anvil block, non retern valve, retracting spring, back-moving spring, non retern valve O RunddichtringO, lower contact O RunddichtringO, drill bit adopts split-type structural, the toothed central plug of anvil block lower end assembling, reverse circulation drill bit body is replaceable is extrusion sealing drill bit.Drill bit adopts split-type structural, rational in infrastructure, compact, be convenient to change, easy to process, cost is low; Multiple drilling process switches fast: increase toothed central plug, can realize direct circulation and creep into; Change bit body, compacted creeping into can be realized; Interior injection runner, effectively can cool bit teeth on the one hand, can form good reacting cycle flow field on the other hand, enhances the ability of absorption disintegrating slag; Boring tooth is embedded in circumferentially different, and difference brill tooth interlaced arrangement circumferentially, this makes bit body fractured rock efficiency improve, and also reduces the wearing and tearing of boring tooth; Can double direction impulse be realized, conveniently carry brill.
Description
Technical field
The utility model relates to a kind of split type interior injection reacting cycle rotary percussion drill bit.
Background technology
Oil is faced with the scarcity of resource, thus exploration, sampling, exploitation requirement are improved constantly, and existing reverse circulation impactor drill bit many employings monolithic construction, drilling process is single, need to change different a whole set of impactors to bad ground, drilling efficiency is low, easy collapse hole, bury drills, because distribution duct is unreasonable, brill is laughed somebody to scorn but weak effect, cause Air Reverse Circulation flow field slag absorbing weak effect, drill bit monolithic construction processing technology complexity, cost are high, impact penetration rate not good enough.
Summary of the invention
The purpose of this utility model to solve above-mentioned existing reverse circulation impactor drill bit Problems existing, and provide a kind of split type interior injection reacting cycle rotary percussion drill bit.The utility model drill bit adopts split-type structural, can switch fast by multiple drilling process, detritus efficiency be high, drill bit good cooling results, pass on Gong rational in infrastructure, be convenient to dismounting, improve drilling efficiency and chip removal ability, solve bit freezing, bit bouncing and bury drills problem.
The utility model is made up of reverse circulation drill bit body, lower contact, anvil block, non retern valve, retracting spring, back-moving spring, non retern valve O RunddichtringO, lower contact O RunddichtringO, drill bit adopts split-type structural, the toothed central plug of anvil block lower end assembling, reverse circulation drill bit body is replaceable is extrusion sealing drill bit.It is through that reverse circulation drill bit body upper surface is evenly equipped with injection runner in six air slots and 45 °, reverse circulation drill bit body inside is provided with the screwed hole be connected with anvil block, escape is had bottom screwed hole, in 45 °, injection runner is inlaid with six heel teeths on reverse circulation drill bit body end face, with the circumference at six heel teeth places for benchmark, 3/4 be circumferentially uniformly inlaid with three outer distributed tooths, 1/2 be circumferentially uniformly inlaid with three interior distributed tooths, 1/4 be circumferentially uniformly inlaid with three internal tooths; Internal tooth is cone tooth, and heel teeth, outer distributed tooth and interior distributed tooth are Cylinder Gear, and different adjacent teeth circumferentially becomes staggered; Lower contact front end is provided with seven o-ring grooves, lower contact inside middle is provided with eight semicircle gas distribution channels, inside, lower contact upper end is provided with the first spline be connected with anvil block, the number of teeth of the first spline is eight, lower contact upper end cylindrical is provided with the first screw thread be connected with impactor, and anvil block lower end is provided with the second screw thread be connected with reverse circulation drill bit body, and anvil center passage lower end is provided with the 3rd screw thread, anvil block upper end is provided with the second spline be connected with lower contact, and the number of teeth of the second spline is eight.Non retern valve is positioned at the cavity that reverse circulation drill bit body and lower contact are formed, and non retern valve is provided with the inclined-plane coordinated with lower contact, inclined-plane is processed with O RunddichtringO groove.
The utility model specific works mode:
During reverse circulation drilling, pressure-air, by the space of lower contact and anvil block spline joint, enters drill bit internal, backs down non retern valve, pressure-air enters reverse circulation drill bit body by the air slot of bit body, cooling heel teeth, air injection runner in 45 ° enters anvil center duct subsequently, forms reacting cycle flow field, due to Involving velocity, bed rock slag bits in hole can be sucked the central duct of anvil block, enter impactor central duct, be finally discharged to earth's surface.Meanwhile, the spline of lower contact and anvil block can transmit rotary torque, forms efficient rotary-percussive drilling.When air compressor machine stops, non retern valve resets by back-moving spring, and the inclined-plane of non retern valve and lower contact step are fitted tightly, and can prevent rock slag from considering to be worth doing and enter impactor.When carrying brill, retracting spring can make anvil block reset together with reverse circulation drill bit body, guarantees that impactor piston effectively impacts, to realize reverse impact, prevents bury drills.
When direct circulation is crept into, install toothed central plug in anvil block lower end, now pressure-air enters reverse circulation drill bit body central duct by interior injection runner, is discharged to earth's surface, realizes direct circulation and creep into by the space between drilling tool and boring.
Compacted when creeping into, change extrusion sealing drill bit body, pressure-air flows to identical with reverse circulation drilling, but does not discharge rock slag and consider to be worth doing, realizes compacted creeping into.
The beneficial effects of the utility model:
1, drill bit adopts split-type structural, rational in infrastructure, compact, be convenient to change, easy to process, cost is low.
2, multiple drilling process switches fast: increase toothed central plug, can realize direct circulation and creep into; Change bit body, compacted creeping into can be realized.
3, interior injection runner, effectively can cool bit teeth on the one hand, can form good reacting cycle flow field on the other hand, enhances the ability of absorption disintegrating slag.
4, boring tooth is embedded in circumferentially different, and difference brill tooth interlaced arrangement circumferentially, this makes bit body fractured rock efficiency improve, and also reduces the wearing and tearing of boring tooth.
5, can double direction impulse be realized, conveniently carry brill.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present utility model.
Fig. 2 is reverse circulation drill bit body cross-sectional schematic of the present utility model.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is lower contact cross-sectional schematic of the present utility model.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the sectional view of Fig. 4.
Fig. 7 is anvil block schematic perspective view of the present utility model.
Fig. 8 is non retern valve structural representation of the present utility model.
Fig. 9 is the utility model direct circulation operating diagram when creeping into.
Figure 10 operating diagram when to be that the utility model is compacted creep into.
Detailed description of the invention
Refer to shown in Fig. 1 to Fig. 8, the present embodiment is made up of reverse circulation drill bit body I, lower contact II, anvil block III, non retern valve IV, retracting spring V, back-moving spring VI, non retern valve O RunddichtringO VII, lower contact O RunddichtringO VIII, drill bit adopts split-type structural, the toothed central plug Ⅸ of anvil block III lower end assembling, reverse circulation drill bit body I is replaceable is extrusion sealing drill bit Ⅹ.It is through that reverse circulation drill bit body I upper surface is evenly equipped with injection runner 2 in six air slots 1 and 45 °, reverse circulation drill bit body I inside is provided with the screwed hole 3 be connected with anvil block III, escape 4 is had bottom screwed hole 3, in 45 °, injection runner 2 is inlaid with six heel teeths 5 on reverse circulation drill bit body I end face, with the circumference at six heel teeth 5 places for benchmark, 3/4 be circumferentially uniformly inlaid with three outer distributed tooths 6,1/2 be circumferentially uniformly inlaid with three interior distributed tooths 7,1/4 be circumferentially uniformly inlaid with three internal tooths 8; Internal tooth 8 is cone tooth, and heel teeth 5, outer distributed tooth 6 and interior distributed tooth 7 is Cylinder Gear, and different adjacent teeth circumferentially becomes staggered; Lower contact II front end is provided with seven o-ring grooves 21, lower contact II inside middle is provided with eight semicircle gas distribution channels 22, inside, lower contact II upper end is provided with the first spline 23 be connected with anvil block III, the number of teeth of the first spline 23 is eight, lower contact II upper end cylindrical is provided with the first screw thread 24 be connected with impactor, anvil block III lower end is provided with the second screw thread 31 be connected with reverse circulation drill bit body I, anvil block III central passage lower end is provided with the 3rd screw thread 32, the number of teeth that anvil block III upper end is provided with the second spline 33, second spline 33 be connected with lower contact II is eight.Non retern valve IV is positioned at the cavity that reverse circulation drill bit body I and lower contact II is formed, and non retern valve IV is provided with the inclined-plane 41 coordinated with lower contact II, inclined-plane 41 is processed with O RunddichtringO groove 42.
The utility model specific works mode is as shown in Fig. 1, Fig. 9 and Figure 10:
During reverse circulation drilling, as shown in Figure 1, pressure-air passes through the space of lower contact II and anvil block III spline joint, enter drill bit internal, back down non retern valve IV, pressure-air enters reverse circulation drill bit body I by the air slot 1 of bit body I, cooling heel teeth 5, air injection runner 2 in 45 ° enters anvil block III central duct subsequently, form reacting cycle flow field, due to Involving velocity, bed rock slag bits in hole can be sucked the central duct of anvil block III, enter impactor central duct, be finally discharged to earth's surface.Meanwhile, the spline of lower contact II and anvil block III can transmit rotary torque, forms efficient rotary-percussive drilling.When air compressor machine stops, non retern valve IV resets by back-moving spring VI, the inclined-plane 42 of non retern valve IV is fitted tightly with lower contact II step, can prevent rock slag from considering to be worth doing and enter impactor.When carrying brill, retracting spring V can make anvil block III reset together with reverse circulation drill bit body I, guarantees that impactor piston effectively impacts, to realize reverse impact, prevents bury drills.
When direct circulation is crept into, as shown in Figure 9, install toothed central plug Ⅸ in anvil block III lower end, now pressure-air enters reverse circulation drill bit body I central duct by interior injection runner 2, is discharged to earth's surface, realizes direct circulation and creep into by the space between drilling tool and boring.
Compacted when creeping into, as shown in Figure 10, change extrusion sealing drill bit body Ⅹ, pressure-air flows to identical with reverse circulation drilling, but does not discharge rock slag and consider to be worth doing, realizes compacted creeping into.
Claims (2)
1. a split type interior injection reacting cycle rotary percussion drill bit, it is characterized in that: be by reverse circulation drill bit body (I), lower contact (II), anvil block (III), non retern valve (IV), retracting spring (V), back-moving spring (VI), non retern valve O RunddichtringO (VII), lower contact O RunddichtringO (VIII) forms, drill bit adopts split-type structural, the toothed central plug (Ⅸ) of anvil block (III) lower end assembling, it is through that reverse circulation drill bit body (I) upper surface is evenly equipped with injection runner (2) in six air slots (1) and 45 °, reverse circulation drill bit body (I) inside is provided with the screwed hole (3) be connected with anvil block (III), escape (4) is arranged at screwed hole (3) bottom, in 45 °, injection runner (2) is inlaid with six heel teeths (5) on reverse circulation drill bit body (I) end face, with the circumference at six heel teeth (5) places for benchmark, 3/4 be circumferentially uniformly inlaid with three outer distributed tooths (6), 1/2 be circumferentially uniformly inlaid with three interior distributed tooths (7), 1/4 be circumferentially uniformly inlaid with three internal tooths (8), internal tooth (8) is cone tooth, and heel teeth (5), outer distributed tooth (6) and interior distributed tooth (7) are Cylinder Gear, and different adjacent teeth circumferentially becomes staggered, lower contact (II) front end is provided with seven o-ring grooves (21), lower contact (II) inside middle is provided with eight semicircle gas distribution channels (22), lower contact (II) inside, upper end is provided with the first spline (23) be connected with anvil block (III), the number of teeth of the first spline (23) is eight, lower contact (II) upper end cylindrical is provided with the first screw thread (24) be connected with impactor, anvil block (III) lower end is provided with the second screw thread (31) be connected with reverse circulation drill bit body (I), anvil block (III) central passage lower end is provided with the 3rd screw thread (32), anvil block (III) upper end is provided with the second spline (33) be connected with lower contact (II), the number of teeth of the second spline (33) is eight, non retern valve (IV) is positioned at the cavity that reverse circulation drill bit body (I) is formed with lower contact (II), and non retern valve (IV) is provided with the inclined-plane (41) coordinated with lower contact (II), inclined-plane (41) is processed with O RunddichtringO groove (42).
2. the split type interior injection reacting cycle rotary percussion drill bit of one according to claim 1, is characterized in that: described reverse circulation drill bit body (I) is replaceable is extrusion sealing drill bit (Ⅹ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420682371.8U CN204238857U (en) | 2014-11-16 | 2014-11-16 | Split type interior injection reacting cycle rotary percussion drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420682371.8U CN204238857U (en) | 2014-11-16 | 2014-11-16 | Split type interior injection reacting cycle rotary percussion drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204238857U true CN204238857U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420682371.8U Withdrawn - After Issue CN204238857U (en) | 2014-11-16 | 2014-11-16 | Split type interior injection reacting cycle rotary percussion drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204238857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329028A (en) * | 2014-11-16 | 2015-02-04 | 吉林大学 | Split type inner jet reverse circulation rotary percussion drill bit |
-
2014
- 2014-11-16 CN CN201420682371.8U patent/CN204238857U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329028A (en) * | 2014-11-16 | 2015-02-04 | 吉林大学 | Split type inner jet reverse circulation rotary percussion drill bit |
| CN104329028B (en) * | 2014-11-16 | 2016-08-24 | 吉林大学 | Split type interior injection reacting cycle rotary percussion drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |