CN201338921Y

CN201338921Y - Novel pneumatic winch

Info

Publication number: CN201338921Y
Application number: CNU2008202331992U
Authority: CN
Inventors: 李远顺; 郭秀欣; 王赢; 宋洪军
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-11-04
Anticipated expiration: 2018-12-31

Abstract

The utility model discloses a novel pneumatic winch, which comprises a speed and rotating direction controlling mechanism of an integral mechanism, a pneumatic motor, a built-in air cut-off brake mechanism and a speed reducing mechanism, wherein the speed and rotating direction controlling mechanism controls the pneumatic motor via the handle, and the air cut-off brake mechanism employing built-in mode can realize automatic stopping after air is cut off. Compared with the prior art, the utility model has the advantages that the winch has an integral structure, small volume, high reliability and the like. Besides, the utility model is adaptable to occasions with flammable and explosive gases such as oil drilling, mining, chemical workshops and the like.

Description

The novel pneumatic winch

One, technical field

The utility model relates to a kind of air winch that integrates commutation speed governing, built-in die braking, planetary reduction gear, be to be explosion-proof traction, the lifting means of power with gas, it can be widely used in, and oil drilling, mining, chemical workshop etc. are explosive, the place of fire gases.

Two, background technology

The rotating speed of air winch and direction control at present is installed in the housing outside, and braking also is external, and it is big to take up space, and carrying is inconvenient, fragile, it is dangerous to operate, poor reliability, especially in the application of petroleum drilling, usability is poor, and control and brake portion often damage.

Three, summary of the invention

The utility model is at above weak point, provides that a kind of integral type connects, the novel pneumatic winch of safe and reliable, easy operating.

A kind of novel pneumatic winch comprises speed and hand of rotation control mechanism, air motor, built-in stop mechanism and the speed reduction gearing of dying; Speed and hand of rotation control mechanism are connected with air motor, and the mouth of motor connects speed reduction gearing through the stop mechanism of dying;

Described speed and hand of rotation control mechanism comprise handle, rotary valve, valve pocket; Rotary valve is placed in the valve pocket and an end is fixedly connected with handle, and valve pocket is provided with shell outward; The rotary valve valve body is provided with axial hole, and axial hole upper edge axis direction is provided with two radial holes; Valve pocket is provided with three groups of pores: two groups of air gates, one group of induction opening; The disc at three groups of pore places is parallel to each other; The circle at two radial hole places on the rotary valve valve body respectively with valve pocket on the circle at two groups of air gate places be concentric circles; Shell is provided with three circular grooves, and three circular grooves are round corresponding with the place, three groups of holes of valve pocket respectively; One group of valve pocket air gate and rotary valve radial hole correspondence are only arranged during the rotary valve rotation;

The described built-in stop mechanism of dying is located in the housing, and it comprises piston, cylinder, spring, compressing tablet, shell; On the fixed outer cylinder shell, a side of cylinder is provided with piston and both form a fully enclosed chamber; Captive joint with piston and to be provided with compressing tablet, be provided with compression spring between compressing tablet and the cylinder; The opposite side of compressing tablet is provided with clutch-plate.

Above-mentioned novel pneumatic winch, the induction opening on the valve pocket are four and along the circumference rectangular distribution; Axial hole on the described rotary valve valve body is two, and it is about the central axis symmetry of rotary valve valve body; Two axial holees are provided with the radial hole about the line of centers symmetry of rotary valve valve body; Two groups of air gate projections vertically on the valve pocket are about a certain diameter symmetry of circle; Every group of air gate number is two on the valve pocket, and these two air gates are provided with another air gate about center of circle symmetry place.

Speed and hand of rotation control mechanism, air motor, built-in stop mechanism and the speed reduction gearing of dying are integral structure, and compact conformation, to take up an area of the space little, convenient in carrying; Good reliability is fit to drilling well and uses.

Shell be provided with the corresponding circular groove of induction opening in be filled with high pressure gas, when handle was failure to actuate, two groups of radial holes on the rotary valve were not communicated with the air gate on the valve pocket, air motor is not worked; When rotary valve rotated forward, one group of radial hole on the rotary valve was slowly corresponding with the air gate of valve pocket, and high pressure gas enter air motor by the circular groove on the shell, make revolution; When rotary valve rotated backward, another group radial hole on the rotary valve was slowly corresponding with another air gate of valve pocket, and high pressure gas enter air motor by the circular groove on the shell, make the motor backward rotation.

Be filled with high pressure gas in the built-in stop mechanism of dying, piston drives the compressing tablet compression spring makes compressing tablet away from clutch-plate, and the sound sheet of clutch-plate is separated, and reel is rotated; When dying, spring expands, and impels compressing tablet to give clutch-plate with pressure, the sound sheet combination of clutch-plate, and reel stops operating; The realization braking of dying guarantees work safety.

Four, description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is speed and hand of rotation control mechanism scheme drawing;

Fig. 3 is the valve pocket scheme drawing;

Fig. 4 is the A-A scheme drawing of Fig. 3;

Fig. 5 is the B-B scheme drawing of Fig. 3;

Fig. 6 is the C-C scheme drawing of Fig. 3;

Fig. 7 is the rotary valve structural representation;

Fig. 8 is the A-A scheme drawing of Fig. 7;

Fig. 9 is the built-in stop mechanism of dying.

Five, the specific embodiment

As shown in the figure: a kind of novel pneumatic winch comprises whole bonded assembly speed and hand of rotation control mechanism 1, air motor 2, built-in stop mechanism 3 and the speed reduction gearing 4 of dying; Speed and hand of rotation control mechanism 1 are connected with air motor 2, and the mouth of motor 2 connects speed reduction gearing 4 and reel through the stop mechanism 3 of dying; Speed reduction gearing 4 adopts planetary gear speed reducing mechanism.

Described speed and hand of rotation control mechanism 1 as shown in Figure 2, it comprises handle 11, rotary valve 12, valve pocket 13.

Rotary valve 12 is placed in the valve pocket 13 and an end is fixedly connected with handle 11, the valve pocket 13 outer shells 14 that are provided with; Rotary valve 12 as shown in Figure 7 and Figure 8, rotary valve 12 valve bodies are provided with two about rotary valve 12 valve body central axis symmetry axial hole 121, this axis direction corresponding position, two axial holees, 121 upper edge respectively is provided with two radial holes 122, and radial hole 122 is communicated with axial hole 121.

Valve pocket 13 which is provided with three groups of pores as shown in Figure 3: two groups of air gates, and one group of induction opening, the disc at three groups of pore places is parallel to each other; Fig. 4 and Fig. 5 are the section-drawing of its two induction opening, and every group of air gate has two pores, and these two pores are about a certain diameter symmetry; Fig. 6 is the induction opening section-drawing, and pore is four and along the circumference rectangular distribution; The circle at two radial hole places on rotary valve 12 valve bodies respectively with valve pocket 13 on the circle at two groups of air gate places be concentric circles; One group of valve pocket air gate and rotary valve radial hole correspondence are only arranged during rotary valve 12 rotations.

Shell 14 is provided with three circular grooves, and three circular grooves are round corresponding with the place, three groups of holes of valve pocket 13 respectively.

The described built-in stop mechanism 3 of dying is located in the housing, and it comprises piston 31, cylinder 32, spring 33, compressing tablet 34, shell; Cylinder 32 is fixed on the shell, and a side of cylinder 32 is provided with piston 31 and both form a fully enclosed chamber; Captive joint with piston 31 and to be provided with compressing tablet 34, be provided with compression spring 33 between compressing tablet 34 and the cylinder 32; The opposite side of compressing tablet 34 is provided with clutch-plate 7.

When rotary valve 12 rotates forward, two of valve pocket 13 air gates are slowly corresponding with two radial holes of rotary valve 12 among Fig. 4, high pressure gas enter the induction opening of valve pocket through shell 14 circular grooves, the circular groove that enters housing through the axial hole and the radial hole of rotary valve then, thereby enter starter motor, make its rotation.

When rotary valve rotates backward, two of valve pocket 13 air gates are slowly corresponding with two radial holes of rotary valve 12 among Fig. 4, and high pressure gas enter the induction opening of valve pocket 13 through circular groove, then the circular groove that enters housing through the axial hole and the radial hole of rotary valve 12, thereby enter air motor 2, make its counter-rotating.

Claims

1, a kind of novel pneumatic winch is characterized in that: described novel startup winch comprises speed and hand of rotation control mechanism, air motor, built-in stop mechanism and the speed reduction gearing of dying; Speed and hand of rotation control mechanism are connected with air motor, and the mouth of motor connects speed reduction gearing through the stop mechanism of dying;

Described speed and hand of rotation control mechanism comprise handle, rotary valve, valve pocket; Rotary valve is placed in the valve pocket and an end is fixedly connected with handle, and valve pocket is provided with shell outward; The rotary valve valve body is provided with axial hole, and axial hole upper edge axis direction is provided with two radial holes, and radial hole is communicated with axial hole; Valve pocket is provided with three groups of pores: two groups of air gates, one group of induction opening; The disc at three groups of pore places is parallel to each other; The circle at two radial hole places on the rotary valve valve body respectively with valve pocket on the circle at two groups of air gate places be concentric circles; Shell is provided with three circular grooves, and three circular grooves are round corresponding with the place, three groups of holes of valve pocket respectively; One group of valve pocket air gate and rotary valve radial hole correspondence are only arranged during the rotary valve rotation;

2, novel pneumatic winch according to claim 1 is characterized in that: the induction opening on the valve pocket is four and along the circumference rectangular distribution.

3, novel pneumatic winch according to claim 1 is characterized in that: the axial hole on the described rotary valve valve body is two, and it is about the central axis symmetry of rotary valve valve body; Two axial holees are provided with the radial hole about the line of centers symmetry of rotary valve valve body.

4, novel pneumatic winch according to claim 1 is characterized in that: two groups of air gate projections vertically on the valve pocket are about a certain diameter symmetry of circle.

5, novel pneumatic winch according to claim 1 is characterized in that: every group of air gate number is two on the valve pocket, and these two air gates are provided with another air gate about center of circle symmetry place.