CN201620754U

CN201620754U - Special drill for coal mining face

Info

Publication number: CN201620754U
Application number: CN2010201560987U
Authority: CN
Inventors: 金小明
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-03
Filing date: 2010-04-03
Publication date: 2010-11-03
Anticipated expiration: 2020-04-03

Abstract

The utility model discloses a special drill for a coal mining face. In the technical scheme, a propulsion device is driven by a cylinder, the piston of the cylinder is drawn by a rope, and the rope is a steel rope coated with a plastic wrapping layer. Since the cylinder is adopted to drive the drill stem and is connected with the piston through the rope instead of the piston rod, the utility model solves the problem that the piston rod needs large space for flexing, thereby greatly improving the safety performance; since the rope is the steel rope coated with the plastic wrapping layer, good sealing can be formed between the rope and the sealing ring of the cylinder cover when the rope is drawn into and out of the cylinder, thereby preventing dust from flowing into the cylinder, and the rope of the cylinder drawn into and out of the cylinder can be purged by draining inner exhaust generated during operation of the cylinder, and a sealing gas ring can be formed at the sealing port, so as to prevent dust from flowing into the cylinder, thereby greatly improving the service life of the cylinder; and the drill stem and the power head are in threaded connection, thereby greatly reducing the time for assembly and disassembly and improving the working efficiency.

Description

Be applied to the special drilling machine of channel of coal mining working surface

[technical field]

The utility model relates to a kind of mining machinery, and what be specifically related to is a kind of special drilling machine that is applied to channel of coal mining working surface.

[background technology]

Be applied to the special drilling machine of channel of coal mining working surface, its effect is that channel of coal mining working surface is implemented leading bleeder off hole.The special drilling machine that uses can only advance drilling rod with mechanical type or oil hydraulic type at colliery down hole drill implementation process at present, complex structure, the complete machine Heavy Weight, the carrying and installation inconvenience, simultaneously, when probing, be easy to generate the bit freezing phenomenon, if adopt cylinder to advance drilling rod, required occupation space was very big when cylinder piston rod was flexible, influence operator's safety, and if adopt cylinder because the many dirt of working environment, can be easy to enter a large amount of dust in the cylinder block, the application life of cylinder can be very short; Also have, the drilling rod that uses generally is the common connecting thread of standard with the screw thread that is adopted being connected of unit head at present, and pitch is little, and the lay day of drilling rod and unit head is long, and work efficiency is low.

[summary of the invention]

Problem in view of present known technology existence, the technical problems to be solved in the utility model is to be to provide a kind of special drilling machine that is applied to channel of coal mining working surface, this kind rig adopts cylinder to advance drilling rod, in light weight, replace cylinder piston rod with the rope rope simultaneously, solved take up space big, the bad shortcoming of security performance of cylinder piston rod flexible time, the while can be guaranteed the sealing of cylinder interior, the cylinder long service life, can also realize drilling rod quick loading and unloading, improve work efficiency.

For solving the problems of the technologies described above, the utility model takes following technical scheme to finish:

A kind of special drilling machine that is applied to channel of coal mining working surface comprises drilling rod, unit head and propulsion plant, it is characterized in that: described propulsion plant adopts air cylinder driven.Described cylinder comprises cylinder block, piston and rope rope, and piston is actively installed in the cylinder block and fixedlys connected with the rope rope, passes from the front and rear cover of cylinder block respectively with rope rope two ends after piston is connected, is connected with described unit head.Described rope rope is the hawser rope, and it is wrapped with the plastic wraps layer.Inflatable mouth before and after the front and rear cover place of described cylinder block is provided with respectively, the front and back inflatable mouth is over against the rope rope that passes from the cylinder block front and rear cover, corresponding with the front and back inflatable mouth respectively connection of front and back cavity of the cylinder block that is separated by described piston, rear chamber is communicated with preceding inflatable mouth, and preceding cavity is communicated with the back inflatable mouth.Adopt being connected of described drilling rod and unit head big helical pitch the double end square thread connect.

The beneficial effects of the utility model are: the utility model adopts cylinder to promote drilling rod, and is simple in structure, not only cleaned but also reduced the weight of complete machine, because drilling rod advances the good air pressure of compressibilty that adopts, so the bit freezing phenomenon can effectively prevent to drill the time; Cylinder of the present utility model adopts the rope rope to replace piston rod to be connected with piston, and the required very large space that takies when having solved piston rod and stretching not only can reduce the weight of equipment, and security performance improves significantly; The more important thing is, for guaranteeing tractive force, the rope rope adopts the hawser rope, it is when guaranteeing hawser rope turnover cylinder simultaneously and the sealing between the cylinder end piece sealing ring, the utility model in the coated outside of hawser rope one deck plastics, hawser rope surface has just had certain elasticity and smooth periphery like this, and just can form good sealing between the sealing ring of cylinder end piece, prevent that cylinder interior from entering dust when using in many dirt working environment, thereby guaranteed the sealing of cylinder interior, keep cleaning and health in the cylinder, the application life of significantly improving cylinder; Also have, interior exhaust when the utility model moves by the drainage cylinder comes the rope rope surface of turnover cylinder is blown clearly, make the rope rope surface plastic wraps layer of turnover cylinder keep clean, increase the service life, the interior exhaust meeting of this drainage simultaneously forms a seal gas ring in the rope rope exit of cylinder end cap, prevent that cylinder interior from entering dust, effectively improve the application life of cylinder; Also have, the connecting thread of drilling rod of the present utility model and unit head adopt big helical pitch the double end square thread, so just can greatly shorten the lay day, significantly improve work efficiency.

In sum, the utility model compared with prior art has substantive distinguishing features and progress.

[description of drawings]

The utility model has following accompanying drawing:

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the I portion partial enlarged drawing of Fig. 1

[specific embodiment]

Accompanying drawing has been represented the technical solution of the utility model and embodiment, further describes each relevant details and operating principle thereof of embodiment below more in conjunction with the accompanying drawings.

With reference to accompanying drawing, this is applied to the special drilling machine of channel of coal mining working surface, comprise drilling rod 1, unit head 2 and propulsion plant, described propulsion plant includes cylinder, described cylinder comprises cylinder block 3, piston 5 and hawser rope 4, hawser rope 4 coated outside have one deck plastic wraps layer, this plastic wraps layer can be pvc material or polytetrafluoroethylmaterial material, piston 5 is actively installed in the cylinder block 3 and with rope rope 4 fixedlys connected, with rope rope 4 two ends after piston 5 is connected respectively from the front and rear cover 8 of

cylinder block

3,9 pass, form good sealing between the lip backbone sealing ring 13 of the cylindrical of rope rope 4 and front and rear cover, rope rope 4 is fixedlyed connected with described unit head 2 after walking around the directive wheel 10 that is installed on the cylinder end piece, unit head 2 slides to be located on the cylinder block 3 by the slide block on its base 12 and (works as piston action, rope rope traction power head moves on cylinder block and drilling rod is advanced accordingly and retreats work), the front and rear cover 8 of described

cylinder block

3,9 places are provided with preceding inflatable mouth (not drawing among the figure) and back inflatable mouth 14 respectively, before and after inflatable mouth over against the rope rope that passes from the cylinder block front and rear cover (when inflatable mouth is blown, not only can blow clearly the rope rope that passes in and out cylinder very neatly, make the rope rope of turnover cylinder keep clean, prolong rope rope application life, the gas that blows out simultaneously can form a seal gas ring in the rope rope exit of cylinder end cap, prevent that effectively extraneous dust from entering cylinder interior), the front and back cavity 7 of the cylinder block that is separated by described piston 5,6 pass through tracheae 11 corresponding connections with the front and back inflatable mouth respectively, rear chamber 6 is communicated with by tracheae 11 with preceding inflatable mouth, before cavity 7 be communicated with by tracheae 11 with back inflatable mouth 14, the employing helical pitch that is connected of described drilling rod 1 and unit head 2 is 20 millimeters big helical pitch double end square thread connection.

The utility model is work like this, during work, unit head 2 drives drilling rod 1 and rotates, pressure gas source enters cylinder from cylinder left end air inlet port simultaneously, promoting piston 5 moves to the right, under the traction of rope rope 4, drilling rod 1 is done corresponding preceding the propelling and is gone probing work (owing to comprise one deck plastics in the outside of hawser rope, hawser rope surface has just had certain elasticity and smooth periphery like this, just form good sealing like this between the sealing ring of hawser rope and cylinder end piece, thereby guaranteed the sealing of cylinder interior), when piston 5 moves to the right, air before the piston compression cylinder in the cavity 7, the air that this part is discharged from blows out by the back inflatable mouth 14 of tracheae 11 from rear end cap 9, to the while blows with the left end rope rope that piston action enters cylinder block at this moment, make the rope rope that enters cylinder block inside keep clean, simultaneously, rope rope import and export at cylinder end piece forms a seal gas ring, prevent that effectively dust from entering cylinder block inside, keep cleaning and health in the cylinder.Because what drilling rod adopted is that air pressure promotes, so the bit freezing phenomenon that produces can avoid drilling the time.

Claims

1. be applied to the special drilling machine of channel of coal mining working surface, comprise drilling rod, unit head and propulsion plant, it is characterized in that: described propulsion plant adopts air cylinder driven.

2. the special drilling machine that is applied to channel of coal mining working surface as claimed in claim 1, it is characterized in that: described cylinder comprises cylinder block, piston and rope rope, piston is actively installed in the cylinder block and with the rope rope fixedlys connected, pass from the front and rear cover of cylinder block respectively with the rope rope two ends after piston is connected, be connected with described unit head.

3. the special drilling machine that is applied to channel of coal mining working surface as claimed in claim 2 is characterized in that: described rope rope is the hawser rope, and it is wrapped with the plastic wraps layer.

4. the special drilling machine that is applied to channel of coal mining working surface as claimed in claim 3, it is characterized in that: inflatable mouth before and after the front and rear cover place of described cylinder block is provided with respectively, the front and back inflatable mouth is over against the rope rope that passes from the cylinder block front and rear cover, corresponding with the front and back inflatable mouth respectively connection of front and back cavity of the cylinder block that is separated by described piston, rear chamber is communicated with preceding inflatable mouth, and preceding cavity is communicated with the back inflatable mouth.

5. the special drilling machine that is applied to channel of coal mining working surface as claimed in claim 1 is characterized in that: the double end square thread that adopts big helical pitch that is connected of described drilling rod and unit head connects.