CN205823165U - A kind of have the high pneumatic down-the-hole bit sealing structure - Google Patents
A kind of have the high pneumatic down-the-hole bit sealing structure Download PDFInfo
- Publication number
- CN205823165U CN205823165U CN201620439248.2U CN201620439248U CN205823165U CN 205823165 U CN205823165 U CN 205823165U CN 201620439248 U CN201620439248 U CN 201620439248U CN 205823165 U CN205823165 U CN 205823165U
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- Prior art keywords
- passage
- reamer
- seal
- drill body
- bit
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- 238000007789 sealing Methods 0.000 title claims abstract description 16
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
This utility model provides a kind of high pneumatic down-the-hole bit having and sealing structure, including drill body, it is provided with non-return valve in described drill body, described drill body includes bit head and link rod part, described link rod part center is provided with first passage, described first passage is from the beginning of link rod part right-hand member end face, extend to bit head, described first passage is provided with reamer near one end of its right end face, described non-return valve is arranged in reamer, institute's non-return valve includes slide block and seal, described slide block is provided with counterbore near one end of drill body, the other end is provided with protruding connecting portion, described seal is hemispherical, the plane of described seal is provided with the groove being connected with protruding connecting portion.This utility model has can effectively reduce that down-the-hole air hammer silt is counter to be filled, the problem causing shutdown, and the drill bit good sealing effect after improvement decreases the anti-probability filled of silt, and improve impacter is intended for single use the life-span, indirectly improves efficiency of construction.
Description
Technical field
This utility model relates to technical field of mechanical equipment, particularly relates to a kind of high pressure equipment, and specifically referring to one has sealing knot
The high pneumatic down-the-hole bit of structure.
Background technology
It is known that hyperbar crawler type Down-hole rolling rig is to set from the external a kind of efficient drilling introduced latter stage in last century
Standby, it is mainly used in harbour construction, reclamation, opencut, the photoface exploision of outdoor earth and rock works, earth source air conditioner and well and beats
Hole.High air-pressure DTH hammer and drill bit are the key equipments of its rock drilling.At present, the impacter of external producer accounts for the city of 40%
, the impacter of domestic manufacturer accounts for 60%, year total sales volume about 300,000, annual value of production 1800000000 yuan contains spare part.Execute at deep holes such as wells
In work, all there is muddy water and pour in down a chimney with piston because grinding the problem of cylinder fracture in domestic and international impacter, makes the fault rate of impacter increase
Add.
On the serious stratum of corrosivity when middle construction, the working environment of impacter is more severe, and fault rate the most substantially increases
Add.Silt pours in down a chimney the corrosion that piece surface all can be caused to wear and tear with corrosion especially key cooperation face of flowing backwards with Korrosionsmedium,
And then cause impacter efficiency to decline, even cannot impact.Good sealing is to prevent from impacter silt from pouring in down a chimney to fall with sea water
The key of stream, the impacter commonly used primary seal structure on domestic and international market, the most only with a check valve non-return valve resistance
Only silt is counter fills or sea water refluence.Along with the continuous aggravation of check valve abrasion, the sealing of impacter can cause mud worse and worse
The probability that sand pours in down a chimney is the most increasing.Turning round and look in earth source air conditioner, deep well and harbour are built, normal impact device cannot overcome because of mud
Sand pours in down a chimney the series of problems caused with Korrosionsmedium refluence, and drilling efficiency is low, and service life is short, and fault rate is high, has a strong impact on
Efficiency of construction.
Summary of the invention
The technical problems to be solved in the utility model is for the weak point existing for prior art, it is provided that one has close
The high pneumatic down-the-hole bit of seal structure, increases a check valve seal nipple, can effectively reduce latent at this bit central hole
Hole impacter silt is counter to be filled, the problem causing shutdown, the drill bit good sealing effect after improvement, decreases the anti-probability filled of silt,
Improve impacter is intended for single use the life-span, indirectly improves efficiency of construction.
Technical solution of the present utility model is to provide a kind of high pneumatic down-the-hole bit having and sealing structure, bag
Include drill body, in described drill body, be provided with non-return valve.
As preferably, described drill body includes that bit head and link rod part, described link rod part center are provided with first passage, institute
State first passage from the beginning of link rod part right-hand member end face, extend to bit head.
As preferably, described first passage is provided with reamer near one end of its right end face, and described non-return valve is arranged on expansion
In the portion of hole.
As preferably, institute's non-return valve includes that slide block and seal, described slide block are provided with counterbore near one end of drill body,
The other end is provided with protruding connecting portion, and described seal is hemispherical, and the plane of described seal is provided with protruding connecting portion even
The groove connect.
As preferably, described reamer and first passage contact site are provided with step surface, are additionally provided with spring in described reamer,
Described spring contacts with step surface for cone spring, one end that cone spring sizes is bigger, and utilizes step surface spacing, bores spring sizes
Less one end is inserted in the counterbore of slide block.
As preferably, being additionally provided with guide pin bushing in the reamer on the right side of described seal, described guide pin bushing outer wall is interior with reamer
Wall connects, and the endoporus aperture of described guide pin bushing is less than the sphere sphere diameter of seal, the energy when sphere of described seal contacts with guide pin bushing
Guide pin bushing endoporus is blocked.
As preferably, described bit head is communicated with first passage and the second channel of bit head outer surface, and described first
Passage becomes 110 ~ 130 ° of angles to arrange with second channel, and described bit head surface is provided with brill tooth.
Use the beneficial effect of the technical program: at this bit central hole, increase a check valve seal nipple, can be effective
Decrease that down-the-hole air hammer silt is counter to be filled, the problem causing shutdown.Drill bit good sealing effect after improvement, decreases silt anti-
The probability filled, improves the life-span that is intended for single use of impacter, life 5%, indirectly improves efficiency of construction, and efficiency improves 2%
Above.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high pneumatic down-the-hole bit having and sealing structure of the present utility model.
Fig. 2 is partial enlarged drawing at A in Fig. 1.
Shown in figure: 1, drill body, 2, non-return valve, 2.1, slide block, 2.2, counterbore, 2.3, protruding connecting portion, 2.4, close
Feng Ti, 2.5, groove, 3, bit head, 4, link rod part, 5, first passage, 6, reamer, 7, step surface, 8, spring, 9, guide pin bushing,
10, second channel, 11, bore tooth.
Detailed description of the invention
For purposes of illustration only, below in conjunction with the accompanying drawings, the high pneumatic down-the-hole bit sealing structure is had to do in detail to utility model
Explanation.
As shown in Fig. 1 to Fig. 2, a kind of have the high pneumatic down-the-hole bit sealing structure, including drill body 1, its feature
It is: in described drill body 1, be provided with non-return valve 2；Described drill body 1 includes bit head 3 and link rod part 4, in described link rod part 4
The heart is provided with first passage 5, and described first passage 5, from the beginning of link rod part 4 right-hand member end face, extends to bit head 3；Described first passage
5 are provided with reamer 6 near one end of its right end face, and described non-return valve 2 is arranged in reamer 6；Institute's non-return valve 2 includes slide block
2.1 and seal 2.4, described slide block 2.1 is provided with counterbore 2.2 near one end of drill body 1, and the other end is provided with protruding connecting portion
2.3, described seal 2.4 is hemispherical, and the plane of described seal 2.4 is provided with the groove being connected with protruding connecting portion 2.3
2.5；Described reamer 6 is provided with step surface 7 with first passage 5 contact site, is additionally provided with spring 8, described spring in described reamer 6
8 contact with step surface 7 for cone spring, one end that cone spring sizes is bigger, and utilize step surface 7 spacing, and cone spring sizes is less
One end be inserted in the counterbore 2.2 of slide block 2.1；Be additionally provided with guide pin bushing 9 in reamer 6 on the right side of described seal 2.4, described in lead
Overlapping 9 outer walls to be connected with the inwall of reamer 6, the endoporus aperture of described guide pin bushing 9 is less than the sphere sphere diameter of seal 2.4, described close
Guide pin bushing 9 endoporus can be blocked when contacting with guide pin bushing 9 by the sphere of envelope body 2.4；Described bit head 3 is communicated with first passage 5 and bores
The second channel 10 of head 3 outer surface, described first passage 5 becomes 110 ~ 130 ° of angles to arrange with second channel 10, described bit head 3
Surface is provided with brill tooth 11, and described brill tooth is that cylinder is embedded in bit head, and leakage brill tooth crest outside bit head is sphere
Or the conical surface, described brill tooth is that several are evenly arranged in bit head outer surface.
In the above-described embodiments, preferred forms of the present utility model is described, it is obvious that at this utility model
Inventive concept under, still can make a lot of change, here, it should be noted that made under inventive concept of the present utility model
Any change falls within protection domain of the present utility model.
Claims (3)
1. there is the high pneumatic down-the-hole bit sealing structure, including drill body (1), it is characterized in that: described drill body (1)
Inside being provided with non-return valve (2), described drill body (1) includes bit head (3) and link rod part (4), and described link rod part (4) center is provided with
First passage (5), described first passage (5), from the beginning of link rod part (4) right-hand member end face, extends to bit head (3), and described first leads to
Road (5) is provided with reamer (6) near one end of its right end face, and described non-return valve (2) is arranged in reamer (6), institute's non-return valve
(2) including slide block (2.1) and seal (2.4), described slide block (2.1) is provided with counterbore near one end of drill body (1)
(2.2), the other end is provided with protruding connecting portion (2.3), and described seal (2.4) is hemispherical, the plane of described seal (2.4)
Being provided with the groove (2.5) being connected with protruding connecting portion (2.3), described reamer (6) and first passage (5) contact site are provided with platform
Terrace (7), is additionally provided with spring (8) in described reamer (6), described spring (8) is cone spring, one end that cone spring sizes is bigger
Contacting with step surface (7), and utilize step surface (7) spacing, one end that cone spring sizes is less is inserted into the counterbore of slide block (2.1)
(2.2) in.
The most according to claim 1 have the high pneumatic down-the-hole bit sealing structure, it is characterized in that: described seal (2.4)
Being additionally provided with guide pin bushing (9) in the reamer (6) on right side, described guide pin bushing (9) outer wall is connected with the inwall of reamer (6), described guide pin bushing
(9) endoporus aperture is less than the sphere sphere diameter of seal (2.4), the energy when sphere of described seal (2.4) contacts with guide pin bushing (9)
Guide pin bushing (9) endoporus is blocked.
The most according to claim 1 have the high pneumatic down-the-hole bit sealing structure, it is characterized in that: described bit head (3) sets
There are the second channel (10) of connection first passage (5) and bit head (3) outer surface, described first passage (5) and second channel
(10) becoming 110 ~ 130 ° of angles to arrange, described bit head (3) surface is provided with brill tooth (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620439248.2U CN205823165U (en) | 2016-05-16 | 2016-05-16 | A kind of have the high pneumatic down-the-hole bit sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620439248.2U CN205823165U (en) | 2016-05-16 | 2016-05-16 | A kind of have the high pneumatic down-the-hole bit sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205823165U true CN205823165U (en) | 2016-12-21 |
Family
ID=57559476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620439248.2U Active CN205823165U (en) | 2016-05-16 | 2016-05-16 | A kind of have the high pneumatic down-the-hole bit sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205823165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852325A (en) * | 2020-07-28 | 2020-10-30 | 浙江开山钎具有限公司 | Down-the-hole hammer |
-
2016
- 2016-05-16 CN CN201620439248.2U patent/CN205823165U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852325A (en) * | 2020-07-28 | 2020-10-30 | 浙江开山钎具有限公司 | Down-the-hole hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-air-pressure down-the-hole drill bit with sealing structure Effective date of registration: 20170719 Granted publication date: 20161221 Pledgee: Weifang rural commercial bank, Limited by Share Ltd hi tech sub branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY CO., LTD. Registration number: 2017990000360 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180704 Granted publication date: 20161221 Pledgee: Weifang rural commercial bank, Limited by Share Ltd hi tech sub branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY CO., LTD. Registration number: 2017990000360 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-air-pressure down-the-hole drill bit with sealing structure Effective date of registration: 20180709 Granted publication date: 20161221 Pledgee: Weifang rural commercial bank, Limited by Share Ltd hi tech sub branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY CO., LTD. Registration number: 2018370010067 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190702 Granted publication date: 20161221 Pledgee: Weifang rural commercial bank, Limited by Share Ltd hi tech sub branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY CO., LTD. Registration number: 2018370010067 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-air-pressure down-the-hole drill bit with sealing structure Effective date of registration: 20190703 Granted publication date: 20161221 Pledgee: Weifang rural commercial bank, Limited by Share Ltd hi tech sub branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY CO., LTD. Registration number: 2019370000153 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200720 Granted publication date: 20161221 Pledgee: Weifang rural commercial bank Limited by Share Ltd. hi tech sub branch Pledgor: SHANDONG TIANRUI HEAVY INDUSTRY Co.,Ltd. Registration number: 2019370000153 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |