CN202937189U - Rock drill - Google Patents
Rock drill Download PDFInfo
- Publication number
- CN202937189U CN202937189U CN 201220428181 CN201220428181U CN202937189U CN 202937189 U CN202937189 U CN 202937189U CN 201220428181 CN201220428181 CN 201220428181 CN 201220428181 U CN201220428181 U CN 201220428181U CN 202937189 U CN202937189 U CN 202937189U
- Authority
- CN
- China
- Prior art keywords
- pickaxe
- rock
- road surface
- impacting
- hammer drill
- 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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model aims at providing a rock drill so as to facilitate follow-up excavating operation. The rock drill comprises a gas distributing mechanism, an impacting mechanism and a pickaxe. A pointed wedge is arranged at the end of the pickaxe, and a step is arranged at the rear portion of the pointed wedge. In a construction process, when the pickaxe is impacted by the impacting mechanism, the pickaxe is in a continuous reciprocating motion, the pointed wedge at the end can be inserted into a road surface gradually till the step at the rear portion enters the road surface along with the wedge. In an impacting interval of the impacting mechanism, the pickaxe can be bounced up for certain distance backwards, and a bouncing path and an original inserting path are deviated, so that the step can drive peripheral rock to be bounced upwards, the rock is damaged and brought out of the road surface, and convenience is provided for follow-up excavating.
Description
Technical field
The utility model belongs to plant equipment manufacturing technology field, specially refers to a kind of hammer drill.
Background technology
Hammer drill is the instrument of direct quarrying stone.Its Drilling on the rock stratum goes out borehole, removes to blow rock in order to put into explosive, thereby completes quarrying stone or other stonework.In addition, hammer drill also can transform destructor into, is used for the solid bed of broken concrete and so on.
Hammer drill carries out work by the impact grinding principle.During work, piston is done the high-frequency reciprocating motion, constantly impacts bit shank.Under the effect of impact force, the bore bit that is the glut shape is crushed rock and digs into certain degree of depth, forms one indenture.After piston was return, hammer drill turned over certain angle, and piston advances forward when again impacting bit shank, forms again new indenture one.Fan-shaped sillar between the twice indenture is shredded by the horizontal component that produces on bore bit.Piston constantly impacts bit shank, and from the centre bore of hammer drill input compressed-air or press water continuously, outside rock slag tap, namely forms the circular bore of certain depth.But the diameter of this kind boring only is slightly larger than the diameter of drill rod bore bit, and when hammer drill was used for the destruction of road pavement, damage area was large not, is unfavorable for follow-up digging operation.
The utility model content
The purpose of this utility model is to propose the larger hammer drill of a kind of damage area, with convenient follow-up digging operation.
Hammer drill of the present utility model comprises valve actuating mechanism, beater mechanism and pick rod, and key is that the end of described pick rod is provided with glut, and the glut rear portion is provided with step.
Hammer drill of the present utility model, its end is provided with drill rod, and the periphery of described drill rod is provided with spiral step.
In work progress, be subject to the impact of beater mechanism when pick rod after, pick rod can constantly move reciprocatingly, and the glut of its end can be inserted in the road surface gradually, until the step at its rear portion also enters in the road surface thereupon.But the lash space at beater mechanism, the pick rod certain distance of in fact can upspringing backward, and can there be deviation in the path of upspringing with original path of inserting, step will drive its peripheral rock and pops up like this, with the rock failure mechanism of rock and take the road surface out of, provide convenience for follow-up excacation.
Further, be chamfered transition between the glut of described pick rod and step, be inserted into the below, road surface to facilitate step.
Further, described step has a plurality of, and is uniformly distributed in the periphery of pick rod, because pick rod can be done a little rotation when upspringing, a plurality of steps can destroy its peripheral rock when rotating, and further improve execution.
Hammer drill of the present utility model has strengthened damage area by improving the structure of its pick rod, and convenient follow-up digging operation has good practicality.
Description of drawings
Fig. 1 is the elevation of the pick rod of hammer drill of the present utility model.
Fig. 2 is the top view of the pick rod of hammer drill of the present utility model.
The specific embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, each several part and annexation, each several part and operating principle etc. are described in further detail.
Embodiment 1:
The hammer drill of the present embodiment comprises valve actuating mechanism, beater mechanism and pick rod, and as shown in Figure 1, key is that the end of described pick rod 1 is provided with glut 2, and glut 2 rear portions are provided with step 3.
In work progress, be subject to the impact of beater mechanism when pick rod 1 after, pick rod 1 can constantly move reciprocatingly, and the glut 2 of its end can be inserted in the road surface gradually, until the step 3 at its rear portion also enters in the road surface thereupon.But the lash space at beater mechanism, pick rod 1 certain distance of in fact can upspringing backward, and can there be deviation in the path of upspringing with original path of inserting, step 3 will drive its peripheral rock and pops up like this, with the rock failure mechanism of rock and take the road surface out of, provide convenience for follow-up excacation.
Further, be chamfered transition between the glut 2 of pick rod and step 3, be inserted into the below, road surface to facilitate step 3.
Further, as shown in Figure 2, step 3 has four, and is uniformly distributed in the periphery of pick rod 1, because pick rod 1 can be done a little rotation when upspringing, a plurality of steps 3 can destroy its peripheral rock when rotating, and further improve execution.
Claims (3)
1. hammer drill, its end is provided with drill rod, it is characterized in that the periphery of described drill rod is provided with spiral step.
2. hammer drill according to claim 1 is characterized in that being chamfered transition between the glut of described pick rod and step.
3. hammer drill according to claim 1 and 2, is characterized in that described step has a plurality of, and be uniformly distributed in the periphery of pick rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428181 CN202937189U (en) | 2012-08-28 | 2012-08-28 | Rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428181 CN202937189U (en) | 2012-08-28 | 2012-08-28 | Rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937189U true CN202937189U (en) | 2013-05-15 |
Family
ID=48321434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220428181 Expired - Fee Related CN202937189U (en) | 2012-08-28 | 2012-08-28 | Rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937189U (en) |
-
2012
- 2012-08-28 CN CN 201220428181 patent/CN202937189U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20130828 |