CN101575942B - Pneumatic anchor rod hammer drill - Google Patents
Pneumatic anchor rod hammer drill Download PDFInfo
- Publication number
- CN101575942B CN101575942B CN2009100158777A CN200910015877A CN101575942B CN 101575942 B CN101575942 B CN 101575942B CN 2009100158777 A CN2009100158777 A CN 2009100158777A CN 200910015877 A CN200910015877 A CN 200910015877A CN 101575942 B CN101575942 B CN 101575942B
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- Prior art keywords
- hammer drill
- anchor rod
- air
- rotating part
- shell
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- 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.)
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- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a pneumatic anchor rod hammer drill, which is mainly characterized in that a power output shaft of a speed change gear box of the prior rotary impact combination hammer drill is connected with a lengthened shaft on which a transmission gear is arranged, and the transmission gear is meshed with a fiber tail sleeve gear; a rotating part and a shell of the hammer drill are corporately fixed on a drill body seat to form a hammer drill whole; a support axis of an air leg is arranged on a gravity line of the weight of the hammer drill whole; and an air inlet pipe of an air motor is directly connected to a valve of an operating arm. The pneumatic anchor rod hammer drill realizes downward shift of the weight of the rotating part, avoids the top-heavy phenomenon, improves the integral stability, avoids direct impact, reduces strong shock during working, and is convenient for a worker to operate.
Description
Technical field
The utility model relates to hammer drill.
Background technology
Anchor rod hammer drill is the equipment that is used for beating square in the mine timbering.The technology relevant with the application is the disclosed rotary impact associating of Chinese patent publication number CN2864065 jumbolter, its primary structure is improved on the basis of original air drill, original air drill comprises by the hammer drill shell, impact part in the shell, the hammer drill body that air leg and control arm constitute, it mainly is to have increased rotating part that the disclosed rotary impact associating of publication number CN2864065 jumbolter improves structure, during improvement, the processing of hammer drill bit shank cover is cogged, hammer drill shell one side at bit shank cover position connects a change gear box, an air motor is installed in bottom at change gear box, air motor is by driving the rotation of bit shank cover after the change-speed gearing speed change, the function with rotary cutting is impacted in realization.Described in addition air motor is by an independent valve control air intake.
The deficiency of this improvement structure is: 1, because change gear box and air motor are arranged on former body head one side, away from hammer drill supporting leg axis of support, whole weight concentrates on the hammer drill head again, so when perforating, whole hammer drill is in top-heavy state and is difficult to control, produce a very big eccentric force when adding rotation again, the staff is more refractory; 2, owing to the air intake of air motor is controlled by separate valve, so operated very inconvenience.
Summary of the invention
The purpose of this utility model is the above-mentioned deficiency that overcomes prior art, makes improvements, and provides a kind of impact rational in infrastructure rotary Pneumatic anchor rod hammer drill.
For reaching above-mentioned purpose, the technical solution of the utility model is: comprise hammer drill body that is made of the impact part in hammer drill shell, the shell, air leg, control arm and the rotating part of being made up of change gear box and wind motor, put at the bit shank of impact part and to be processed with gear, it is characterized in that: 1, connect an extension shaft on the power output shaft of change gear box, a travelling gear is installed on the extension shaft, and travelling gear meshes with the bit shank sleeve gear again; 2, rotating part and hammer drill shell are fixed on the body seat jointly, constitute a hammer drill integral body; 3, the axis of support of air leg is arranged on the center of gravity line of hammer drill overall weight; 4, the air inlet pipe of wind motor directly is connected on the valve of control arm.
During work, by the diverse location of operated valve handle, realize impacting separately, rotation or impact add rotation separately, according to different rocky condition flexible modulation.
Good effect of the present utility model is: 1, rotating part overlaps transmission by extension shaft and bit shank, and the one, realized moving down of rotating part weight, avoided top-heavy phenomenon; The 2nd, after moving down, rotating part can be fixed on jointly on the body seat with the impact part, improved resistance to overturning, the 3rd, transmit a rotation power to bit shank by extension shaft and put, have the elastic transmission effect, avoided direct impact, the powerful vibrations when having reduced work; 2, the axis of support of air leg is arranged on the center of gravity line of hammer drill overall weight, makes the support force left and right sides balance during perforating, prevents eccentric force, and the staff controls easily; 4, the air inlet of air motor is operated by same valve handle with the air inlet of impacting part, and the staff is easy to operate.
Description of drawings
Fig. 1 is the front view of the utility model embodiment.
Marginal data: 1---wind motor; 2---change gear box; 3---extension shaft; 4---travelling gear; 5---the bit shank sleeve gear; 6---impact part; 7---control arm; 8---air leg; 9---the body seat; 10---be connected and fixed part.
The specific embodiment
As shown in Figure 1, the utility model comprises hammer drill body that is made of the impact part in hammer drill shell, the shell 6, air leg 8, control arm 7 and the rotating part of being made up of change gear box 2 and wind motor 1, put at the bit shank of impact part 6 and to be processed with gear 5, on the power output shaft of change gear box 2, be connected with extension shaft 3, travelling gear 4 is installed on the extension shaft 3, and travelling gear 4 meshes with bit shank sleeve gear 5 again; Rotating part and hammer drill shell are fixed on the body seat 9 jointly by being connected and fixed part 10, constitute a hammer drill integral body; 3, the axis of support of air leg 8 is arranged on the center of gravity line of hammer drill overall weight; The air inlet pipe of wind motor 1 directly is connected on the valve of control arm 7.
Claims (1)
1. Pneumatic anchor rod hammer drill, comprise hammer drill body that constitutes by the impact part in hammer drill shell, the shell, air leg, control arm and the rotating part of forming by change gear box and wind motor, put at the fine tail of impact part and to be processed with gear, it is characterized in that:
Be connected with extension shaft on the power output shaft of change gear box, travelling gear is installed on the extension shaft, travelling gear meshes with fine tail sleeve gear again;
Rotating part and hammer drill shell are fixed on the body seat jointly, constitute a hammer drill integral body;
The axis of support of air leg is arranged on the center of gravity line of hammer drill overall weight;
The air inlet pipe of wind motor directly is connected on the valve of control arm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009100158777A CN101575942B (en) | 2009-06-03 | 2009-06-03 | Pneumatic anchor rod hammer drill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009100158777A CN101575942B (en) | 2009-06-03 | 2009-06-03 | Pneumatic anchor rod hammer drill |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101575942A CN101575942A (en) | 2009-11-11 |
CN101575942B true CN101575942B (en) | 2011-07-20 |
Family
ID=41270996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009100158777A Active CN101575942B (en) | 2009-06-03 | 2009-06-03 | Pneumatic anchor rod hammer drill |
Country Status (1)
Country | Link |
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CN (1) | CN101575942B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103015890B (en) * | 2012-12-02 | 2015-09-09 | 孙旭 | Rotary-percussion pneumatic roof bolter |
CN104806163B (en) * | 2015-04-29 | 2017-03-08 | 冀凯河北机电科技有限公司 | Pneumatic roof bolter |
-
2009
- 2009-06-03 CN CN2009100158777A patent/CN101575942B/en active Active
Also Published As
Publication number | Publication date |
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CN101575942A (en) | 2009-11-11 |
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C10 | Entry into substantive examination | ||
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant |