CN2278770Y - Air distributing mechanism for valveless pneumatic rock drill - Google Patents
Air distributing mechanism for valveless pneumatic rock drill Download PDFInfo
- Publication number
- CN2278770Y CN2278770Y CN 96242480 CN96242480U CN2278770Y CN 2278770 Y CN2278770 Y CN 2278770Y CN 96242480 CN96242480 CN 96242480 CN 96242480 U CN96242480 U CN 96242480U CN 2278770 Y CN2278770 Y CN 2278770Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- valveless
- pneumatic rock
- air
- 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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- Earth Drilling (AREA)
Abstract
The utility model discloses an air allocating mechanism for a valveless pneumatic rock drill. An air allocation body of the utility model is provided with a column sleeve-shaped monomer mechanism, a plurality of paths which is led from an inner hole to an end surface and two paths which is led from the inner hole to an outer circle are arranged on the column sleeve-shaped monomer mechanism, and the outer circle are respectively matched with the inner holes of a stem body and a cylinder body. The utility model can simplify the air allocating mechanism for valveless pneumatic rock drills under the condition of not affecting work efficiency, and the utility model is convenient for mass production. Therefore, the air allocating mechanism for valveless pneumatic rock drills with high overall efficiency can be widely applied, and the utility model can save energy and get better economic benefit.
Description
The utility model relates to the novel valve actuating mechanism of a kind of valveless formula air drill, particularly a kind of novel valve actuating mechanism of valveless formula air drill that has the distribution body that is used for rock drilling boring.
Common air drill branch has valve formula and valveless formula two big classes, the overall efficiency of valveless formula air drill is higher than valve formula air drill, but its application does not have valve formula air drill general, its reason is that the structure of valveless formula air drill valve actuating mechanism and manufacturing process are comparatively complicated, especially the distribution body in the valve actuating mechanism will be welded by distribution seat and distribution seat inlay two parts because of its profile is irregular, the distribution seat must be shaped with casting method, adding also will increase fabrication hole man-hour, adopt end face contact seal simultaneously between distribution body and adjacent component, make it higher, thereby improved processing cost requirement on machining accuracy.
Task of the present utility model provides the novel valve actuating mechanism of a kind of valveless formula air drill, particularly a kind of novel valve actuating mechanism of valveless formula air drill that has the distribution body that is used for rock drilling boring.
Task of the present utility model be by improve in the valveless formula air drill valve actuating mechanism the distribution body and and adjacent component between matching relationship finish.Distribution body after the improvement is a column sleeve shape monomer structure, several passage and two passages from endoporus towards outer garden from endoporus towards end face are arranged on it, and matches with the endoporus of handle body and cylinder body respectively in its outer garden.
The utility model is column sleeve shape monomer structure with the distribution body of valveless formula air drill by the assembly welding structural reform, make it need not be confined to cast form man-hour adding, also needn't weld and increase fabrication hole, and adopt garden face contact seal between distribution body and adjacent component, easy to process.Therefore the valve actuating mechanism after simplifying both had been convenient to produce in batches, can reduce cost again, can make the higher valveless formula air drill of overall efficiency obtain using more widely, played energy conservation, increased the effect of economic benefit.
The invention is further described below with reference to accompanying drawing and an embodiment shown in the drawings, but the content of invention is not limited thereto.
Accompanying drawing is depicted as the sectional view of the novel valve actuating mechanism of valveless formula air drill.(1) is the handle body among the figure; (2) be the distribution body; (3) be cylinder body; (4) be piston; A, b, c, d are gas passage, and wherein a has several, and b has two; E, f are two cavitys that form between cylinder body (3) and the piston (4).
Operating principle with common valveless formula air drill valve actuating mechanism is similar, when piston (4) is in position shown in the figure, compressed air enters the cavity e of piston left part by several passages a via handle body (1), promoting piston (4) moves to right, communicate with passage c and the left end of piston (4) when moving to the right side of passage b to cavity e, the impact stroke of hammer drill is finished, at this moment, compressed air in the handle body (1) changes by passage b, d enters cavity f, make piston (4) reposition, finish the backstroke of hammer drill, compressed air has constantly alternately promptly been finished the whole working cycles process of hammer drill by valve actuating mechanism.As mentioned above, novel valveless formula air drill valve actuating mechanism makes valveless formula air drill keep original operating principle and overall efficiency.
Because distribution body (2) is a column sleeve shape monomer structure, it need not be confined to cast form, also needn't carry out welding processing, need not increase fabrication hole, and all adopt garden face contact seal between it and handle body (1) and the cylinder body (3), easy to process, therefore whole valve actuating mechanism is simplified, and both has been convenient to produce in batches, can reduce cost again, just can make the higher valveless formula air drill of overall efficiency obtain using more widely, play the effect of energy conservation, thereby obtain better economic benefit.
Claims (1)
- A kind of novel valve actuating mechanism of valveless formula air drill that has the distribution body, the distribution body that it is characterized in that it is a column sleeve shape monomer structure, several passage and two passages from endoporus towards outer garden from endoporus towards end face are arranged on it, and match with the endoporus of handle body and cylinder body respectively in its outer garden.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242480 CN2278770Y (en) | 1996-10-29 | 1996-10-29 | Air distributing mechanism for valveless pneumatic rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242480 CN2278770Y (en) | 1996-10-29 | 1996-10-29 | Air distributing mechanism for valveless pneumatic rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2278770Y true CN2278770Y (en) | 1998-04-15 |
Family
ID=33916572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96242480 Expired - Fee Related CN2278770Y (en) | 1996-10-29 | 1996-10-29 | Air distributing mechanism for valveless pneumatic rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2278770Y (en) |
-
1996
- 1996-10-29 CN CN 96242480 patent/CN2278770Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |