CN2759709Y - Pneumatic punching hammer used for horizontal directional drilling machine - Google Patents
Pneumatic punching hammer used for horizontal directional drilling machine Download PDFInfo
- Publication number
- CN2759709Y CN2759709Y CN 200420069184 CN200420069184U CN2759709Y CN 2759709 Y CN2759709 Y CN 2759709Y CN 200420069184 CN200420069184 CN 200420069184 CN 200420069184 U CN200420069184 U CN 200420069184U CN 2759709 Y CN2759709 Y CN 2759709Y
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- spline housing
- piston
- endoporus
- joint
- 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
Links
Abstract
The utility model relates to a pneumatic punching hammer used for a horizontal directional drilling machine, which is mainly composed of a punching hammer and a guiding drill head, wherein the punching hammer is formed by that an air valve, an inner valve, an inner piston, a core pipe, a spline housing, etc. are arranged in a cylinder body which is connected with a joint; the front end of the spline housing is connected with an eccentric drill head; a front inner hole and a back inner hole are arranged inside the inner piston, the circumference of the middle barrier is provided with 3 to 4 slanting paths, and an air inlet hole is arranged behind the barrier. The front end of the cylinder body is connected with the spline housing through screw threads, the nylon core pipe is fixed at the back end of a connecting sleeve of the eccentric drill head, and the front inner hole of the inner piston is matched with the nylon core pipe in a sliding way. The utility model adopts the single cylinder, the heavy piston and the low frequency of punching, so the effective working diameter of the cylinder body is enlarged with great punching work. Only the piston and the cylinder in the entire structure require higher machining accuracy which is IT6 and IT7 respectively, and the machining accuracy of the rest components is common.
Description
Technical field
The utility model relates to a kind of horizontal drill drilling tool, particularly a kind of horizontal directional drilling machine pneumatic striking mechanism.
Technical background
At present, non-excavation horizontal directional drill inlet pipe line laying method is widely used, and it is to utilize special horizontal directional drilling machine, creeps into the construction method of laying underground utilities in the mode of controlled drilling track in the Different Strata and the degree of depth.Existing horizontal orientation creeps into used drilling tool, and adopt has valve formula valve actuating mechanism more, complex structure, and processing technology requires high, and energy consumption is bigger.
Summary of the invention
The purpose of this utility model is that a kind of processing that is easy to will be provided, and can reduce the horizontal directional drilling machine pneumatic striking mechanism of energy resource consumption.
The technical solution of the utility model is: a columnar cylinder body is arranged, at rear end of the cylinder block joint is housed, off-balance bit is equipped with in the front, in the cylinder body of joint endoporus front, is adorning air valve, spring, internal valve successively, and inner carrier is equipped with at the cylinder body middle part.Forward and backward endoporus is arranged in the described inner carrier, and a week of middle obstruct place is provided with 3～4 tilting passages, and obstruct place back has air admission hole, and back endoporus in the inner carrier and inner spool pipe place are slidingly matched.With the spline housing that is being threaded, the joint sleeve and the spline housing of off-balance bit are slidingly matched at the cylinder body front end.A nylon core tube is being fixed in the rear end in joint sleeve, and the preceding endoporus place of nylon core tube and inner carrier is slidingly matched.In the cylinder body of spline housing rear end, back-up ring is housed.Medium position is processed with cannelure in cylinder body.
The utility model adopts single cylinder tube, taskwork plug and the low number of times that impacts, and has enlarged the effective working diameter of cylinder body, and ballistic work is big.In the total, have only piston and cylinder barrel requirement machining accuracy higher, be IT6 and IT7, all the other parts machining accuracies are general.
Description of drawings
Accompanying drawing is the utility model cutaway view.
Among the figure 1, joint, 2, air valve, 3, spring, 4, sealing ring, 5, back-up ring, 6, internal valve, 7, sealing ring, 8, cylinder body, 9, inner carrier, 10, nylon core tube, 11, back-up ring, 12, spline housing, 13, off-balance bit, 14, joint sleeve, 15 endoporus, 16, the inner spool pipe, 17, cannelure, 18, air admission hole, 19, passage, 20, cannelure.
The specific embodiment
Introduce the utility model below in conjunction with drawings and Examples.
With reference to accompanying drawing, the cylinder body 8 of an oval tubular is arranged, rear end of the cylinder block is equipped with the joint 1 of jointed rod, in the cylinder body of joint endoporus front, is adorning air valve 2, spring 3, internal valve 6 successively.Between cylinder body 8 and the joint 1 sealing ring 4 is arranged, between cylinder body 8 and the internal valve 6 sealing ring 7 is arranged, be lined with back-up ring 5 between joint and the internal valve.Inner carrier 9 is equipped with at the cylinder body middle part, and forward and backward endoporus 15 is arranged in the inner carrier, is provided with 3～4 tilting passages 19 week of middle obstruct place, and obstruct place back has air admission hole 18.Back endoporus 15 in the inner carrier is slidingly matched with inner spool pipe 16 places.With the spline housing 12 that is being threaded, the joint sleeve 14 and the spline housing of off-balance bit 13 are slidingly matched at the cylinder body front end, and a nylon core tube 10 is being fixed in the rear end in joint sleeve 14, and the preceding endoporus place of nylon core tube and inner carrier 9 is slidingly matched.In the cylinder body 8 of spline housing 12 rear ends, back-up ring 11 is housed.Medium position is processed with cannelure 20,17 in cylinder body 8.
Enter the compressed air of joint 1, back down air valve 2, the air admission hole by internal valve 6 enters inner spool pipe 16, promotes inner carrier 9 preshoots, drives off-balance bit 13 and creeps into.Behind the joint sleeve 14 of inner carrier collision off-balance bit, bounce-back immediately, this moment, the compressed air by cannelure 20,17 promoted inner carrier again backward, until withstanding internal valve 6, inner carrier is power with compressed air, and just motion drives the off-balance bit work done and so forth.
Claims (1)
1, a kind of horizontal directional drilling machine pneumatic striking mechanism, a columnar cylinder body is arranged, at rear end of the cylinder block joint is housed, off-balance bit is equipped with in the front, in the cylinder body of joint endoporus front, adorning air valve, spring, internal valve successively, inner carrier is equipped with at the cylinder body middle part, it is characterized in that: forward and backward endoporus (15) is arranged in the described inner carrier, middle obstruct place be provided with 3～4 tilting passages (19) week, obstruct place back has air admission hole (18), and the back endoporus (15) in the inner carrier is located to be slidingly matched with inner spool pipe (16); At the cylinder body front end with the spline housing (12) that is being threaded, the joint sleeve (14) of off-balance bit (13) is slidingly matched with spline housing, a nylon core tube (10) is being fixed in the rear end in joint sleeve (14), the preceding endoporus place of nylon core tube and inner carrier (9) is slidingly matched, in the cylinder body (8) of spline housing (12) rear end, back-up ring (11) is housed, and medium position is processed with cannelure (20,17) in cylinder body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420069184 CN2759709Y (en) | 2004-11-16 | 2004-11-16 | Pneumatic punching hammer used for horizontal directional drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420069184 CN2759709Y (en) | 2004-11-16 | 2004-11-16 | Pneumatic punching hammer used for horizontal directional drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2759709Y true CN2759709Y (en) | 2006-02-22 |
Family
ID=36081912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420069184 Expired - Fee Related CN2759709Y (en) | 2004-11-16 | 2004-11-16 | Pneumatic punching hammer used for horizontal directional drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2759709Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019333A1 (en) * | 2012-02-08 | 2014-02-06 | Wang Jianhua | Pneumatic multifunctional impactor |
| CN106894757A (en) * | 2015-12-18 | 2017-06-27 | 中国石油天然气集团公司 | A kind of horizontal directional drill jetting type surges churn drilling tools |
| CN107530872A (en) * | 2015-04-24 | 2018-01-02 | 卡特彼勒公司 | Hammer with composite piston sleeve |
-
2004
- 2004-11-16 CN CN 200420069184 patent/CN2759709Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019333A1 (en) * | 2012-02-08 | 2014-02-06 | Wang Jianhua | Pneumatic multifunctional impactor |
| CN107530872A (en) * | 2015-04-24 | 2018-01-02 | 卡特彼勒公司 | Hammer with composite piston sleeve |
| CN107530872B (en) * | 2015-04-24 | 2020-11-13 | 卡特彼勒公司 | Hammer with composite piston sleeve |
| CN106894757A (en) * | 2015-12-18 | 2017-06-27 | 中国石油天然气集团公司 | A kind of horizontal directional drill jetting type surges churn drilling tools |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20101116 |