CN2920592Y

CN2920592Y - Pneumatic chain saw

Info

Publication number: CN2920592Y
Application number: CN 200620117170
Authority: CN
Inventors: 张希国
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-13
Filing date: 2006-05-13
Publication date: 2007-07-11
Anticipated expiration: 2016-05-13

Abstract

The utility model discloses a pneumatic chain saw and can by used under the coal mine with gas and coal dust to solve the problem of chain saw use under the coal mine. The utility model uses a pneumatic motor as the driving device. The output shaft is turned by the speed reducer. A chain wheel is arranged on the output shaft; a guide plate is arranged on the chain wheel; a chain saw is arranged on the guide plate. The speed reducer is a homopolar bevel gear speed reducer. A front handle and a handle are fixed on the motor to form a motor body. The utility model replaces the old hand knife tool under the coal mine, to reduce workers' physical labor and improve work efficiency.

Description

Pneumatic chain saw

Technical field:

The utility model relates to technical field of tools, and it is a kind of pneumatic chain saw that is applicable to the coal mine use with gas and dust explosion danger in definite saying.

Background technology:

The safety regulations in coal mine regulation, the mine with gas and dust explosion danger must use explosion-proof type equipment.At present, electric chain saw is non-antiknock device, only is applicable to ground cut timber, can not act under coal mine, therefore, remains coal miner cutter cut by hand at the supporting of China's coal-mine underworkings, the required timber of maintenance, and labour intensity is big, and production efficiency is low.Pneumatic chain saw of the present utility model has solved the explosion-proof problem of electric chain saw, can use under the coal mine with gas and dust explosion danger.

Summary of the invention:

The purpose of this invention is to provide a kind of chain saw-pneumatic chain saw that can under coal mine, use with gas and dust explosion danger.With the wind regime is power, does not produce electric spark in the use, has solved the problem that electric chain saw can not use under coal mine.

The technical scheme that the utility model adopted is: to press wind is power.Motor case adopts the Light Aluminum Alloy casting, alleviates chain saw weight, based on power demand, dwindles vane type wind motor rotor and shell as far as possible, manufactures and designs small-sized wind motor and comes the assembly pneumatic chain saw.Adopt air motor as drive unit, drive output shaft by decelerator and rotate, sprocket wheel (22) is installed on the output shaft, guide plate (33) is housed on the sprocket wheel (22), chain saw (34) is installed on the guide plate (33).Described decelerator (17) is a single cylindrical gear reducer, is fixed with handle (31) and handle (51) with the motor one on the motor, and oil syringe (37) also is housed on the handle 31.

The beneficial effect of the utility model pneumatic chain saw is: solved explosion-proof problem, be adapted to have under the coal mine needs of the dangerous mine of gas and dust explosion, under coal mine, substitute ancient hand cutting tool, promptly alleviated colliery underground labour's manual labor, improved operating efficiency again.

Description of drawings:

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

Fig. 2 is a cutaway view of the present utility model.

Fig. 3 is a partial sectional view of the present utility model.

Among the figure 1, motor case 2, stator 3, rotor 4, blade 5, paper washer 6, end cap 7, rear bearing block 8, bearing 9, circlip 10, bolt 11, elastic washer 12, alignment pin 13, front-end bearing pedestal 14, bearing 15, terminal pad 16, reduction box loam cake 17, reduction box 18, bearing 19, chain saw shaft gear 20, bearing 21, plain cushion 22, sprocket wheel 23, turn 24, nut 25, chain cover 26, bolt 27, spring washer 28, armature spindle gear 29, bearing 30, screw 31, front handlebar 32, dog screw 33, guide plate 34, saw chain 35, sawtooth 36, plain cushion 37, oil syringe 38, pressure handle 39, straight pin 40, push rod 41, valve pocket 42, O RunddichtringO 43, O RunddichtringO 44, valve 45, valve spring 46, connector 47, thread bush 48, accept 49, connection-peg 50, grafting body 51, handle 52, air outlet.

The specific embodiment:

Embodiment

Air motor in the utility model and decelerator can be ordered, and also can produce voluntarily.Common mechanical factory all can produce, get all the parts in the accompanying drawing ready after, assemble with reference to accompanying drawing.Decelerator 17 is fixed on the motor case 1 by terminal pad 15.Pin pressure handle 38 during use, compressed air enters blade 4 drive rotors 3 rotations that motor promotes motor from grafting body 50, armature spindle gear 28 in the decelerator 17 drives sprocket wheel 22 by the chain saw shaft gear 19 with its engagement and rotates, thereby the guide plate 33 and the chain saw 34 that drive on the sprocket wheel 22 rotate.Compressed air is discharged from air outlet 52.Unclamp pressure handle 38, compressed air stops to enter air motor, and chain saw 34 stops operating.

Claims

1, pneumatic chain saw, it comprises: motor, decelerator and chain saw, it is characterized in that: adopt air motor as drive unit, driving output shaft by decelerator (17) rotates, sprocket wheel (22) is installed on the output shaft, guide plate (33) is housed on the sprocket wheel (22), and chain saw (34) is installed on the guide plate (33).

2, pneumatic chain saw according to claim 1 is characterized in that: described decelerator (17) is a single cylindrical gear reducer, is fixed with front handlebar (31) and handle (51) with the motor one on the motor.

3, pneumatic chain saw according to claim 2 is characterized in that: oil syringe (37) also is housed on the front handlebar (31).