CN2937477Y - Side water feeder of electric coal drill - Google Patents
Side water feeder of electric coal drill Download PDFInfo
- Publication number
- CN2937477Y CN2937477Y CN 200620088612 CN200620088612U CN2937477Y CN 2937477 Y CN2937477 Y CN 2937477Y CN 200620088612 CN200620088612 CN 200620088612 CN 200620088612 U CN200620088612 U CN 200620088612U CN 2937477 Y CN2937477 Y CN 2937477Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- water
- drill
- electric coal
- 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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Abstract
A side water feeder for electric coal drill is used for feeding water to the drill rod in wet type perforating of coal mine work face and comprises essentially a rotor and a stator, wherein the rotor consist of front and rear parts in screwed joint, rear part of the rotor having a driving spiral wing which is higher than outer cycle of the rotor and used for connecting the drill bit, front end of the rotor having a rotor thread hole connecting with the drill rod, front part of the rotor having transversal and longitudinal water channels communicating with the rotor thread hole; the stator sleeves the rotor, side of the stator having a water inlet communicating with the inner cavity thereof, a shaft bearings being provided between diameter expansion holes at two ends of the inner cavity of the stator and the rotor, head surface of the stator having a fixed sealed external guard plate, inner side of the shaft bearing having sealing rings for sealing the rotor and the stator. The water feeder has excellent water tightness and rarely has water leakage phenomenon; the utility model has flexible rotation, and favorable adaptability to small impurities such as rust and coal dusts etc; connection with the electric coal drill may be conveniently and quickly cut off, thereby eliminating the drill sticking or shaft breaking phenomena; the rotor is split type and has convenient dismounting for maintenance.
Description
Technical field:
The utility model relates to a kind of electric coal drill side formula water supplying apparatus, partly supplies water to drilling rod when being used for the punching of coal mine work area wet type.
Background technology:
Original electric coal drill side formula water supplying apparatus, be to be with stator in rotor middle part periphery, the rotor front end has the rotor screwed hole that links with drilling rod, the rotor rear portion has perpendicular to rotor axis and is used for the drive rod that links with bit, the stator side has water inlet, and this water inlet is communicated with the rotor screwed hole by horizontal, vertical water channel of rotor.This water supplying apparatus reaches waterproof effect by combining closely of rotor and stator contact surface, owing to the long-time mutually mutual friction of rotor with stator, easily causes bonding surface closely not leak, and sealing is poor; Rotor and stator are combined closely, are not had bearing and relatively rotate, foreign matters such as impurity, iron rust are easy to cause and rotate the phenomenon of being obstructed in the iron pin that produces, the water, rotate very flexible, often do not rotate and cause water inlet pipe to twine drilling rod, the water inlet pipe phenomenon of hitting the person occurs, influence operator safety; The water supplying apparatus driving shaft is a round steel axle, does not match with the electric coal drill mouth, is prone to bit freezing in the use, damages the bit phenomenon.
Summary of the invention:
The purpose of this utility model provides a kind of electric coal drill side formula water supplying apparatus, solves rotation flexibility and sealing performance between rotor and the stator, makes the more convenient dismounting maintenance of rotor, and rotor is more reasonable with connecting of electric drill.
The purpose of this utility model realizes as follows: this electric coal drill side formula water supplying apparatus, rotor middle part periphery is with stator, the rotor front end has the rotor screwed hole that links with drilling rod, the stator side has the water inlet that is communicated with its inner chamber, rotor has laterally, vertically water channel is communicated with the rotor screwed hole, leave the gap between circle and the rotor cylindrical in the stator, install bearing between bore of stator two ends and the rotor, make and rotate between rotor and the stator flexibly, be not easy to be obstructed, there is the sealing ring that seals between pair stator and the rotor bearing inboard, increases special sealing device, makes the water-stop better effects if.Water is received by tube connector on the water inlet of stator, and water enters the space between stator and the rotor, and the water channel by rotor enters the rotor screwed hole then, reaches the purpose of transporting water.
The rotor rear portion is useful on the driving screw wing that is higher than the rotor cylindrical that connects with bit, and connect disconnection with electric coal drill convenient and swift.
Rotor is made of the front and back two parts by thread connection, because rotor is easy to be disassembled into two sections, and when seals damaged, when the bearing rotation is obstructed, on-the-spot can dismounting and change the maintenance.
By the above structure advantage of this water supplying apparatus as can be seen: (1) good airproof performance: water supplying apparatus is taked the full section sealing of rolling bearing, good seal, and abrasion resistance is strong, is not easy to occur drainage; (2) rotate flexibly: set up two rolling bearings between rotor and stator, improved the rotation flexibility of water supplying apparatus, strong to minute impurities compliance such as impurity, iron rust, coal dust in the water, stopped substantially because of rotation is obstructed, stator and drilling rod link the phenomenon of hurting sb.'s feelings; (3) connect with electric coal drill disconnect convenient and swift: the driving screw wing structure uniqueness that the rotor rear portion connects with bit is taked the spiral fried dough twist driving wing, cooperate closely with the electric coal drill mouth, holding capacity is strong, has eliminated bit freezing, off-axis phenomenon, and the probability that influences overall performance because of the rotor drives structure almost reduces to zero; (4) dismounting is easy to maintenance: rotor is that thread connection is split type, convenient disassembly, and when seals damaged, when the bearing rotation is obstructed, on-the-spot getting final product dismounting and change maintenance and repair, the application life that also can improve water supplying apparatus.
Description of drawings:
Accompanying drawing is the structural representation of the utility model electric coal drill side formula water supplying apparatus.
The specific embodiment:
With reference to accompanying drawing, this water supplying apparatus mainly is made of rotor 1 and stator 9.Rotor 1 is made of the front and back two parts by thread connection, coupling part 6 is in the middle part, there is threaded interior hole the rear end of rotor 1 forward part, the external screw thread post of the front end of rotor 1 rear section to there being one section to be threaded onto rotor 1 threaded interior hole, the excircle part diameter that rotor 1 front and back two parts expose is identical, rotor 1 rear portion is useful on the driving screw wing 3 that exceeds rotor 1 cylindrical that connects with bit, rotor 1 front end has the rotor screwed hole 10 that links with drilling rod, and rotor 1 front portion has laterally, vertically water channel is communicated with rotor screwed hole 10; Stator 9 is enclosed within on the rotor 1, stator 9 sides have the water inlet 7 that is communicated with its inner chamber, leave the gap between circle and rotor 1 cylindrical in the stator 9, there is the hole enlargement hole at stator 9 endoporus two ends, device bearing 4 and 8 between hole enlargement hole and rotor 1, bearing 4 and 8 can be selected rolling bearing for use, stator 9 end face fixing seal outer baffles 2, sealing outer baffle 2 pairs of bearings, 4,8 axial restraints also seal blocks dust, and there is the sealing ring 5 of sealing between pair stator 9 and the rotor 1 bearing 4,8 inboards.
Claims (3)
1, a kind of electric coal drill side formula water supplying apparatus, rotor middle part periphery is with stator, the rotor front end has the rotor screwed hole that links with drilling rod, the stator side has the water inlet that is communicated with its inner chamber, rotor has laterally, vertically water channel is communicated with the rotor screwed hole, it is characterized in that: leave the gap between circle and rotor (1) cylindrical in the stator (9), install bearing (4,8) between stator (9) endoporus two ends and the rotor (1), there is the sealing ring (5) of sealing between pair stator (9) and the rotor (1) bearing (4,8) inboard.
2, electric coal drill side formula water supplying apparatus according to claim 1 is characterized in that: rotor (1) rear portion is useful on the driving screw wing (3) that exceeds rotor (1) cylindrical that connects with bit.
3, electric coal drill side formula water supplying apparatus according to claim 1, it is characterized in that: rotor (1) is made of the front and back two parts by thread connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088612 CN2937477Y (en) | 2006-08-27 | 2006-08-27 | Side water feeder of electric coal drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088612 CN2937477Y (en) | 2006-08-27 | 2006-08-27 | Side water feeder of electric coal drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937477Y true CN2937477Y (en) | 2007-08-22 |
Family
ID=38361503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620088612 Expired - Fee Related CN2937477Y (en) | 2006-08-27 | 2006-08-27 | Side water feeder of electric coal drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937477Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031934A (en) * | 2010-10-30 | 2011-04-27 | 枣庄矿业(集团)有限责任公司高庄煤矿 | Drill rod water feeder |
-
2006
- 2006-08-27 CN CN 200620088612 patent/CN2937477Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031934A (en) * | 2010-10-30 | 2011-04-27 | 枣庄矿业(集团)有限责任公司高庄煤矿 | Drill rod water feeder |
| CN102031934B (en) * | 2010-10-30 | 2013-03-06 | 枣庄矿业(集团)有限责任公司高庄煤矿 | Drill rod water feeder |
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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: 20070822 Termination date: 20120827 |