CN202627955U - Pneumatic percussion drill - Google Patents
Pneumatic percussion drill Download PDFInfo
- Publication number
- CN202627955U CN202627955U CN 201220284282 CN201220284282U CN202627955U CN 202627955 U CN202627955 U CN 202627955U CN 201220284282 CN201220284282 CN 201220284282 CN 201220284282 U CN201220284282 U CN 201220284282U CN 202627955 U CN202627955 U CN 202627955U
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- rotor
- pneumatic
- power transmission
- gear
- transmission shaft
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses a pneumatic percussion drill which comprises a percussion drill body and a percussion rotating shaft, wherein a rotor cavity is arranged in the body, the rotor cavity is communicated with an air inlet, a pneumatic rotor is pivoted in the rotor cavity, and the percussion rotating shaft is connected with the pneumatic rotor. After the pneumatic percussion drill is optimized, the mode of connecting the pneumatic rotor with the percussion rotating shaft is as follows: a rotor gear is fixed on the pneumatic rotor, axial teeth are fixed on the percussion rotating shaft, and the axial teeth are matched with the rotor gear. The pneumatic percussion drill disclosed by the utility model has an advantage that the percussion drill still can be used in inflammable and explosive places such as the bottoms of coal mines, therefore, the pneumatic percussion drill is wide in application range.
Description
Technical field
The present invention relates to the Churn drill technical field, especially relate to a kind of pneumatic type Churn drill.
Background technology
Churn drill is widely used in engineering, building field.General, Churn drill comprises the Churn drill body, and body interior is provided with motor, and motor is connected with the impact power transmission shaft.Certainly, to connect parts such as fork assembly be that drill bit provides impact force for this impact power transmission shaft.Its defective is: this Churn drill can produce electric spark when using, and inflammable and explosive place such as can't be applied at the bottom of the coal mine.Therefore be necessary to improve.
Summary of the invention
Deficiency to above-mentioned prior art exists the purpose of this invention is to provide a kind of pneumatic type Churn drill, and it such as has at the bottom of coal mine at inflammable and explosive place still can use, thus the wider characteristics of the scope of application.
To achieve these goals; The technical scheme that the present invention adopted is: the pneumatic type Churn drill comprises the Churn drill body and impacts power transmission shaft that said body interior is provided with rotor chamber; Rotor chamber is communicated with the gas access; Simultaneously, be articulated with Pneumatic rotor in the rotor chamber, impact power transmission shaft and be connected in Pneumatic rotor.
Said Pneumatic rotor with impact power transmission shaft ways of connecting is: be fixed with rotor gear on the Pneumatic rotor, impact on the power transmission shaft being fixed with a tooth, this tooth and rotor gear match.
Said rotor gear is 1:2 with the gear ratio of axle tooth.
The number of teeth of said rotor gear is 8, the tooth top diameter of a circle is that 13.84mm, the angle of engagement are 20o; The number of teeth of axle tooth is that 16 teeth, tooth top diameter of a circle are that 23.7mm, the angle of engagement are 20o, and the center to center distance of rotor gear and axle tooth is 20.5 millimeters.
After adopting said structure, the present invention compares the advantage that is had and is with prior art: 1, inflammable and explosive place still can be used at the bottom of coal mine etc., and the scope of application is wider.The power resources of the impact power transmission shaft of pneumatic type Churn drill of the present invention avoid adopting motor, thereby Churn drill can not produce electric spark; Simultaneously, the source of the gas of this pneumatic type Churn drill can be positioned over the position away from inflammable and explosive place.Like this, this pneumatic type Churn drill can not set off an explosion and wait danger when use in inflammable and explosive place at the bottom of the coal mine etc.2, power transmission is stable.Pneumatic rotor with impact power transmission shaft through gear drive, and have suitable gearratio, torque transfer is comparatively stable.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Fig. 1 is the decomposition texture sketch map of embodiments of the invention.
The specific embodiment
The following stated is merely preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment, see shown in Figure 1: the pneumatic type Churn drill comprises Churn drill body 10 and impacts power transmission shaft 50.Obviously, this impacts the percussion mechanism that power transmission shaft 50 connects drill bit.These body 10 inside are provided with rotor chamber 40, and rotor chamber 40 is communicated with gas access 20.Certainly, this gas access 20 connects sources of the gas such as compressor.Simultaneously, be articulated with Pneumatic rotor 30 in the rotor chamber 40, impact power transmission shaft 50 and be connected in this Pneumatic rotor 30.That is, the body 10 inner air motor structures that form, thus the power that impacts power transmission shaft 50 comes from air motor, avoids coming from motor.Like this, this pneumatic type Churn drill inflammable and explosive place such as at the bottom of coal mine still can be suitable for.
Optimize, Pneumatic rotor 30 with impact power transmission shaft 50 ways of connecting is: be fixed with rotor gear 31 on the Pneumatic rotor 30, impact on the power transmission shaft 50 being fixed with a tooth 51, this tooth 51 matches with rotor gear 31.That is, Pneumatic rotor 30 is realized being connected through gear-driven mode with impact power transmission shaft 50, and axle tooth 51 and rotor gear 31 engagements.In order to obtain the rotating speed of comparatively suitable impact power transmission shaft 50, rotor gear 31 is 1:2 with the gear ratio of axle tooth 51.Concrete, the number of teeth of rotor gear 31 is 8, the tooth top diameter of a circle is that 13.84mm, the angle of engagement are 20o; The number of teeth of axle tooth 51 is that 16 teeth, tooth top diameter of a circle are 20o for 23.7mm, the angle of engagement, and the center to center distance of rotor gear 31 and axle tooth 51 is 20.5 millimeters.Such gear parameter combination is beneficial to impact power transmission shaft 50 rotating speeds that obtain comparatively stable 900r/min.This rotating speed is the normal revolution of the impact power transmission shaft 50 of Churn drill.
Claims (4)
1. pneumatic type Churn drill; Comprise Churn drill body (10) and impact power transmission shaft (50); It is characterized in that: said body (10) inside is provided with rotor chamber (40), and rotor chamber (40) is communicated with gas access (20), simultaneously; Be articulated with Pneumatic rotor (30) in the rotor chamber (40), impact power transmission shaft (50) and be connected in Pneumatic rotor (30).
2. pneumatic type Churn drill according to claim 1; It is characterized in that: said Pneumatic rotor (30) and impact power transmission shaft (50) ways of connecting are: be fixed with rotor gear (31) on the Pneumatic rotor (30); Impact on the power transmission shaft (50) being fixed with a tooth (51), this tooth (51) and rotor gear (31) match.
3. pneumatic type Churn drill according to claim 2 is characterized in that: the gear ratio of said rotor gear (31) and axle tooth (51) is 1:2.
4. pneumatic type Churn drill according to claim 3 is characterized in that: the number of teeth of said rotor gear (31) is 8, the tooth top diameter of a circle is that 13.84mm, the angle of engagement are 20o; The number of teeth of axle tooth (51) is that 16 teeth, tooth top diameter of a circle are that 23.7mm, the angle of engagement are 20o, and the center to center distance of rotor gear (31) and axle tooth (51) is 20.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220284282 CN202627955U (en) | 2012-06-13 | 2012-06-13 | Pneumatic percussion drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220284282 CN202627955U (en) | 2012-06-13 | 2012-06-13 | Pneumatic percussion drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202627955U true CN202627955U (en) | 2012-12-26 |
Family
ID=47381163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220284282 Expired - Lifetime CN202627955U (en) | 2012-06-13 | 2012-06-13 | Pneumatic percussion drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202627955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573183A (en) * | 2012-08-06 | 2014-02-12 | 周飞 | Modified pneumatic percussion drill |
-
2012
- 2012-06-13 CN CN 201220284282 patent/CN202627955U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573183A (en) * | 2012-08-06 | 2014-02-12 | 周飞 | Modified pneumatic percussion drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |