CN2721597Y

CN2721597Y - Low-noise safety stepless speed-adjusting hoister for mine

Info

Publication number: CN2721597Y
Application number: CN 200420068541
Authority: CN
Inventors: 彭建新; 赵明清
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-24
Filing date: 2004-08-24
Publication date: 2005-08-31
Anticipated expiration: 2014-08-24

Abstract

The utility model relates to a low-noise safety stepless speed-adjusting hoister for mine, which comprises a generator, a planetary reducer and a winch barrel. The low-noise safety stepless speed-adjusting generator hoister for mine is characterized in that the planet carrier of the planetary reducer drives the winch barrel by an underdriving gear unit; a sun wheel shaft is connected with a shaft sleeve which is fixed on the main shaft of the generator by the joint of the gear wheel, the inner end of the shaft sleeve of the internal gear which is linked with an internal gear is sheathed on the sun wheel shaft by a ball bearing, and the outer end is arranged on a bearing block which is near the generator. A flywheel is arranged on the shaft sleeve of the internal gear and is positioned between a speed reducer and the bearing block, a speed regulation brake is positioned on the flywheel, and a safety arrestment wheel with a hydraulic pusher brake is fixed on the outer end of the box of the planet carrier. The low-noise safety stepless speed-adjusting hoister for mine has the advantages of favorable smoothness of operation, safety, reliability, low noise, small abrasion, long service life and low cost.

Description

The low noise safety-type is mining infinite speed variation winch

Technical field

Promote the lifting machinery that weight is used on a kind of mine mechanism, the especially mine.

Background technology

At present, domestic various mining infinite speed variation winches great majority adopt planetary reduction gears as stepless speed-regulating device, and its inner gear or stretch out outside the deceleration box with the parts of inner gear interlock is loaded onto fly wheel governor and speed brake and carried out differential speed regulation.Because inner gear or be in the cantilever position operation with the parts of inner gear interlock, the floatability of adding inner gear, sun wheel shaft is not enough, so galloping, poor reliability, noise are big.Another defective is that sure brake is installed on the clutch of motor and drop-gear box, can only make the motor stall when having a power failure suddenly, the load of capstan drum still can drag capstan drum toward gliding, must brake fly wheel governor simultaneously just can make capstan drum stop operating, otherwise safety arrestment is invalid, and safety misadventure easily takes place when therefore having a power failure suddenly.

Summary of the invention

The purpose of this utility model provides the mining infinite speed variation winch of a kind of low noise safety-type, accomplishes the safety performance height, and running is steadily reliable and noise is low.

Technical scheme is that existing mining infinite speed variation winch is improved, first improvement is that the inner gear axle sleeve with the inner gear interlock is prolonged, inner gear axle sleeve the inner is held by roller bearing and directly is enclosed within on the sun wheel shaft, its outer end is installed near on the bearing seat of motor, fly wheel governor be installed in inner gear shaft put, between retarder and bearing seat, speed brake is housed on it.Can make operating steadily of inner gear reliable like this.Second improvement is sun wheel shaft to be taken over by gear with the axle sleeve on being fixed on electric machine main shaft be connected, to keep the floatability of sun wheel shaft.The unsteady of sun wheel and inner gear worked in coordination, and can reduce the noise of planetary reduction gear, increases running stability and reliability more.The 3rd improvement is on pinion carrier is exposed the outer end of casing the safety arrestment wheel to be installed, and on the safety arrestment wheel fluid power pusher brake is housed.When unexpected power failure phenomenon takes place, the fluid power pusher brake will be checked the safety arrestment wheel automatically, thereby the capstan drum of pinion carrier and drive thereof is braked immediately.That is to say that no matter whether fly wheel governor is braked, the safety arrestment wheel can both make the capstan drum braking safely and reliably, has therefore improved safety performance.Be worth one be that as long as motor one starts, the fluid power pusher brake will unclamp the safety arrestment wheel automatically, not influence the running of capstan drum.

Principle of work is as follows: the rotation of driven by motor sun wheel shaft, the sun wheel on sun wheel shaft drive satellite gear, inner gear rotation, and pinion carrier is because of having the load transfixion on the capstan drum through train of reduction gears.This moment, the operator did not also operate the speed brake handle application of force, and fly wheel governor is in the high speed free rotation state.If operating handle is the application of force from small to large, speed brake is then held fly wheel governor gradually tightly, and the rotating speed that makes fly wheel governor from high to low, and force the inner gear rotating speed from high to low through the inner gear axle sleeve, meanwhile, satellite gear drives pinion carrier and capstan drum rotation, and rotating speed uprises from low.When fly wheel governor was braked, the capstan drum rotative speed reached peak.Otherwise when operating handle from big to small during the application of force, the rotating speed of fly wheel governor and inner gear is uprised by low, and the rotating speed of pinion carrier and capstan drum is then by high step-down.That is to say, can realize the infinite speed variation of capstan drum by regulating the fly wheel governor rotating speed.

In order to reduce the volume of planetary reduction gear, reduce manufacturing cost and improve service life, the utility model also changes the part ball bearing of main shaft into does not have the oil bearing of giving.

Compared with the prior art, characteristics of the present utility model be that smoothness of operation is good, safe and reliable, noise is low, wearing and tearing are little, long service life, low cost of manufacture.

Description of drawings

Fig. 1 is the mining infinite speed variation winch structure of a low noise safety-type scheme drawing

Fig. 2 is the mining infinite speed variation winch of low noise safety-type transmission principle figure

Fig. 3 is the planetary reduction gear partial enlarged drawing

The specific embodiment

As Fig. 1, shown in 2, the utility model includes motor 1, planetary reduction gear 2, capstan drum 3, the pinion carrier 2-1 of planetary reduction gear 2 passes through by gear 2-5 and 2-6, the double-reduction gear group that 3-1 and 3-2 form drives capstan drum 3, service brake 3-3 is arranged on the brake wheel of capstan drum 3, difference is that the sun wheel shaft 2-2 of planetary reduction gear 2 is connected with axle sleeve 1-1 on being fixed on motor 1 main shaft by gear catcher 2-3, be enclosed within on the sun wheel shaft 2-2 by ball bearing of main shaft with inner gear axle sleeve 2-4 the inner of inner gear 2-7 interlock, its outer end is installed near on the bearing seat 1-2 of motor 1, fly wheel governor 4 is installed in inner gear shaft and puts, between drop-gear box and bearing seat 1-2, speed brake 4-1 is housed on it, pinion carrier 2-1 exposes and is fixed with safety arrestment wheel 5 on the casing outer end, on the safety arrestment wheel 5 fluid power pusher brake 5-1 is housed.

As shown in Figure 3, present embodiment also on the satellite gear fulcrum, satellite gear both sides places is with CSB-10WC32 thrust washer 21 respectively, being equipped with CSB-10-3040 between satellite gear and satellite gear fulcrum does not have to oil bearing 22, being equipped with CSB-10F between pinion carrier 2-1 the inner and inner gear axle sleeve 2-4 does not have to oil bearing 23, and being equipped with CSB-10F between sun wheel shaft 2-2 end and pinion carrier 2-1 support holes does not have to oil bearing 24.

Claims

1, the mining infinite speed variation winch of a kind of low noise safety-type, include motor (1), planetary reduction gear (2), capstan drum (3), the pinion carrier (2-1) of planetary reduction gear (2) drives capstan drum (3) by train of reduction gears, the sun wheel shaft (2-2) that it is characterized in that planetary reduction gear (2) is connected with axle sleeve (1-1) on being fixed on motor (1) main shaft by gear catcher (2-3), be enclosed within on the sun wheel shaft (2-2) by ball bearing of main shaft with the inner gear axle sleeve (2-4) of inner gear (2-7) interlock is inner, fly wheel governor (4) is installed on the inner gear axle sleeve (2-4), be positioned between drop-gear box and the bearing seat (1-2), speed brake (4-1) is housed on it, pinion carrier (2-1) is exposed and is fixed with safety arrestment wheel (5) on the casing outer end, on the safety arrestment wheel (5) fluid power pusher brake (5-1) is housed.

2, the mining infinite speed variation winch of low noise safety-type according to claim 1, it is characterized in that on the satellite gear fulcrum, satellite gear both sides places is with thrust washer (21) respectively, between satellite gear centre hole and satellite gear fulcrum, be equipped with and do not have the oil bearing (22) of giving, being equipped with between pinion carrier (2-1) the inner and inner gear axle sleeve (2-4) does not have the oil bearing (23) of giving, and being equipped with between sun wheel shaft (2-2) end and pinion carrier (2-1) support holes does not have the oil bearing (24) of giving.