CN201037373Y - Rotating mechanism for pneumatic drilling machine - Google Patents

Rotating mechanism for pneumatic drilling machine Download PDF

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Publication number
CN201037373Y
CN201037373Y CNU2007200340831U CN200720034083U CN201037373Y CN 201037373 Y CN201037373 Y CN 201037373Y CN U2007200340831 U CNU2007200340831 U CN U2007200340831U CN 200720034083 U CN200720034083 U CN 200720034083U CN 201037373 Y CN201037373 Y CN 201037373Y
Authority
CN
China
Prior art keywords
vane motor
output shaft
gear
bearing
rotating mechanism
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
Application number
CNU2007200340831U
Other languages
Chinese (zh)
Inventor
杨善国
杜长龙
唐芙蓉
丁开旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CNU2007200340831U priority Critical patent/CN201037373Y/en
Application granted granted Critical
Publication of CN201037373Y publication Critical patent/CN201037373Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A pneumatic drill rotating mechanism consists of a vane motor and a planetary reducer connected integrately with the vane motor, wherein, the front part of the planetary reducer is provided with an output shaft; the water seal coating of the reducer is provided with a diversion channel and an overflow channel which are communicated with the output shaft and adopt radial double-channel vent rotating seal; connected transition covers and bolts which fix the covers into a whole are arranged between the planetary reducer and the vane motor. Compressed high-pressure air enters into the vane motor through a distributing casing to drive the vane motor to rotate at high speed and lower speed and greater torsional moment can be obtained through deceleration by the planetary reducer; meanwhile, the output shaft drives a drill rod to drive a drill bit to complete rotation cutting, thereby realizing rock breaking and drilling; moreover, underground static-pressure water enters into the output shaft through the water seal coating so as to realize dust prevention during drilling; in addition, the utility model has a simple and compact structure, small volume, light weight, smooth operation, low noise, convenience for use and maintenance and long service life, thereby having extensive practicability.

Description

A kind of pneumatic drilling machine rotating mechanism
Technical field
The utility model relates to a kind of pneumatic drilling machine rotating mechanism, is particularly useful for coal entry anchor rod support boring, also is applicable to rock body drilled.
Background technology
Make a general survey of domestic and international jumbolter development course and practice, at coal mining enterprise's economic situation and the concrete characteristics of coal petrography tunnel bolt support, in the long duration, monomer swinging jumbolter is development of anchor pole facility and the main flow of using.Advantages such as monomer swinging jumbolter is to adopt the rotary cutting mode to come rock-breaking drilling, and this kind auger has rate of penetration height, consuming little energy, frame for movement is simple, work noise is low.According to the difference of used power source, monomer swinging jumbolter can be divided into electric bolt rig, hydraulic jumbolter, pneumatic jumbolter.Wherein, pneumatic jumbolter rotating mechanism mainly is made up of the motor and the deceleration device of rotation at a high speed, by the output shaft outputting power, drives the drill bit rotary cutting and carries out rock-breaking drilling.The pneumatic jumbolter rotating mechanism that uses in the matured product in the market, the motor that adopts mainly is gear motor or piston (plunger) motor, the deceleration device that is adopted is the ordinary straight gear reduction unit of one-level high transmission ratio, though they can finish required action, but exist following deficiency: 1) adopt the pneumatic jumbolter rotating mechanism of gear motor, its low-speed performance is poor, and power output and moment of torsion are less, influence cutting ability, be difficult to satisfy production requirement; 2) the pneumatic jumbolter rotating mechanism of employing piston (plunger) motor, its complex structure is made maintenance difficult, and appearance and size is big, and quality is heavy, and the working service cost is big; 3) the ordinary straight gear reduction unit of one-level high transmission ratio, appearance and size is big, and supporting capacity is relatively poor, and the life-span of pinion is too low, influence mechanical performance and transmission effect, thereby whole aircraft reliability is poor, and the practical phase is short.
The utility model content
In view of the deficiency that prior art exists, the purpose of this utility model provides a kind of compact conformation, and volume is little, and is easy to use, effective pneumatic jumbolter rotating mechanism.
Pneumatic drilling machine rotating mechanism of the present utility model, it constitutes by sliding-vane motor with planetary reduction gear that sliding-vane motor is connected as one, the planetary reduction gear front portion is provided with output shaft, its water seal puts outward and is provided with drainage channel and the overflow ducts that communicates with output shaft, and is provided with radially two pass and draws and let out rotatory sealing; Be provided with transition cover that is coupled to each other and the bolt that is fixed and combines as a whole between planetary reduction gear and the sliding-vane motor.
Described sliding-vane motor comprises the flow housing, be located at rotor in the flow housing and the stator that matches with it, have the radial slot of a plurality of one-tenth even numbers on the rotor, be provided with in the radial slot can be in groove the blade of free shrink radially, the stator two ends are provided with steady pin, the front and back of rotor are provided with end cap, and end cap is provided with bearing, and are provided with hold-down nut; Described single-stage planetary reducer comprises the internal gear that is located in the water seal overcoat cavity, be located at planet carrier and sun gear in the internal gear, planetary gear with the sun gear engagement, planetary gear is located on the bearing pin that bearing is housed, together rotate with planet carrier around internal gear, thread connection between sun gear and the output shaft, the front end of planet carrier are located in the bearing that is provided with on the bearing support, and its rear end is located in the bearing on the transition cover.
The utlity model has following advantage:
1) because the employing sliding-vane motor is simple in structure, few easy workout part, stable performance, reliability height.Rotating part inertia is little, and the rotation followability is good, can stretch out compensation automatically after the wearing and tearing of blade napex, keeps contacting with stator inner surface, does not influence operate as normal, and main consumable accessory blade exchanging is easy.Have the radial slot of even number number on the rotor, have good geometrical symmetry, it is little to pulse, and noise is low, and running steadily;
2) adopt the single-stage planetary reducer, gearratio is big, compares with the common slowing-down structure of traditional dead axle transmission, and appearance and size is little, and is in light weight, and supporting capacity is big, stable mechanical performance, and transmission is effective;
3) adopt thread connection between the sun gear of reducer and the motor output shaft, compact conformation, volume is little.
4) compact overall structure, the reliability height, the life-span is long, uses easy to maintenancely, has a extensive future.
Description of drawings
Accompanying drawing is a topology view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in the accompanying drawing, pneumatic drilling machine rotating mechanism of the present utility model, constitute by sliding-vane motor with single-stage planetary reducer that sliding-vane motor is connected as one, the planetary reduction gear front portion is provided with the output shaft 1 that has protective cover, is provided with transition cover 10 that is coupled to each other and the bolt 3 that is fixed and combines as a whole between planetary reduction gear and the sliding-vane motor.Sliding-vane motor comprises flow housing 18, be provided with rotor 12, stator 17 and blade 24 in the flow housing 18, stator 17 is fixing by steady pin 21,22, has the radial slot of a plurality of one-tenth even numbers on the rotor 12, blade 24 is located in the radial slot of rotor 12, can be in groove free shrink radially.Rotor 12 is seated on the front and rear cover 13,14, which is provided with bearing 15, and is provided with hold-down nut 16.The single-stage planetary reducer comprises sun gear 11, with the planetary gear 7 of sun gear 11 engagements, planetary gear 7 is located on the bearing pin 6 that bearing 8 is housed, and together rotates around internal gear 19 with planet carrier 5, internal gear 19 is located in the cavity of water seal overcoat 2, is fixed on the water seal overcoat 2 by countersunk head pin 23.Thread connection between sun gear 11 and the output shaft 1, the front end of planet carrier 5 are located on the bearing support 20 in the bearing 4 that is provided with, and its rear end is located in the bearing 9 on the transition cover 10.Flow housing 18 is connected by bolt 3 with the water seal overcoat 2 of reducer, is provided with drainage channel 25 and spout hole 27 between water seal overcoat 2 and the output shaft 1, and is provided with radially two pass and draws and let out rotatory sealing 26.The internal gear 19 of planetary reduction gear is fixing, establishes within it sun gear 11 and rotor 12 thread connection, with the planet carrier 5 and output shaft 1 thread connection of sun gear 11 consubstantialities rotation.
The course of work: the pressure-air after will compressing is in flow housing 18 enters the airtight high pressure chest of sliding-vane motor, the pressure differential that exists between high pressure chest and the low pressure chamber produces rotor 12 rotation at a high speed of air pressure moment CD-ROM drive motor, the power of high-speed motion reaches the sun gear 11 of planetary reduction gear, because internal gear 19 is fixing, be passed to output shaft 1 by planet carrier 5 outputs than low velocity, drive drilling rod drive drill bit rotary cutting and carry out rock-breaking drilling.Simultaneously, down-hole static pressure water enters output shaft 1 through water seal overcoat 2, the dirt effect of going out when realizing boring.For the dirt water that effectively prevents to go out enters reducer and motor inside, two pass is housed between water seal overcoat 2 and the output shaft 1 radially draws and let out rotatory sealing 26.By changing the output shaft 1 of different sizes, can be used for boring the bolthole of different-diameter.

Claims (3)

1. pneumatic drilling machine rotating mechanism, it is characterized in that: it constitutes by sliding-vane motor with planetary reduction gear that sliding-vane motor is connected as one, the planetary reduction gear front portion is provided with output shaft (1), its water seal overcoat (2) is provided with drainage channel (25) and the overflow ducts (27) that communicates with output shaft (1), and is provided with radially two pass and draws and let out rotatory sealing (26); The bolt (3) that is provided with the transition cover (10) that is coupled to each other between planetary reduction gear and the sliding-vane motor and is fixed and combines as a whole.
2. a kind of pneumatic drilling machine rotating mechanism according to claim 1, it is characterized in that: described sliding-vane motor comprises flow housing (18), be located at rotor (12) in the flow housing (18) and the stator (17) that matches with it, have the radial slot of a plurality of one-tenth even numbers on the rotor (12), be provided with in the radial slot can be in groove the blade of free shrink (24) radially, stator (17) two ends are provided with steady pin (21,22), the front and back of rotor (12) are provided with end cap (13,14), end cap is provided with bearing (15), and is provided with hold-down nut (16).
3. a kind of pneumatic drilling machine rotating mechanism according to claim 1, it is characterized in that: described planetary reduction gear comprises the internal gear (19) that is located in water seal overcoat (2) cavity, be located at planet carrier (5) and sun gear (11) in the internal gear (19), planetary gear (7) with sun gear (11) engagement, planetary gear (7) is located on the bearing pin (6) that bearing (8) are housed, together rotate with planet carrier (5) around internal gear (19), thread connection between sun gear (11) and the output shaft (1), the front end of planet carrier (5) is located in the bearing (4) that bearing support (20) go up to be provided with, and its rear end is located in the bearing (9) on the transition cover (10).
CNU2007200340831U 2007-01-24 2007-01-24 Rotating mechanism for pneumatic drilling machine Expired - Fee Related CN201037373Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200340831U CN201037373Y (en) 2007-01-24 2007-01-24 Rotating mechanism for pneumatic drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200340831U CN201037373Y (en) 2007-01-24 2007-01-24 Rotating mechanism for pneumatic drilling machine

Publications (1)

Publication Number Publication Date
CN201037373Y true CN201037373Y (en) 2008-03-19

Family

ID=39209889

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200340831U Expired - Fee Related CN201037373Y (en) 2007-01-24 2007-01-24 Rotating mechanism for pneumatic drilling machine

Country Status (1)

Country Link
CN (1) CN201037373Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615542A (en) * 2013-12-13 2014-03-05 珠海横琴新区英格尔特种钻井工程设备有限公司 Novel water seal used for drilling machine power head
CN106122385A (en) * 2016-08-18 2016-11-16 张家港保税区永大机械有限公司 A kind of twist bit
CN106640201A (en) * 2016-12-30 2017-05-10 谢军 Tooth type blade motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615542A (en) * 2013-12-13 2014-03-05 珠海横琴新区英格尔特种钻井工程设备有限公司 Novel water seal used for drilling machine power head
CN103615542B (en) * 2013-12-13 2016-06-08 珠海市英格尔特种钻探设备有限公司 Drill power head water seal
CN106122385A (en) * 2016-08-18 2016-11-16 张家港保税区永大机械有限公司 A kind of twist bit
CN106122385B (en) * 2016-08-18 2018-07-24 张家港保税区永大机械有限公司 A kind of twist bit
CN106640201A (en) * 2016-12-30 2017-05-10 谢军 Tooth type blade motor

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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: 20080319