Hydropneumatic drive pulse

 

The invention relates to mining and can be used in the mining and coal industry. The objective of the invention is to improve the reliability and durability of hydropneumoprivod by reducing wear, increasing the tightness and use in sealing the connection of the elastic element of the reduced stiffness. Hydro-pneumatic impulse actuator includes a cylinder valve, the valve having a locking element with the valve body, gas and wzwodow cavities formed is placed in the cylinder by the piston rod, the latter being covered by the locking element, valve valve, seat and communicated through an external dispenser with pressure and drain lines dokladano cavity formed by the cylinder and valve and communicated with vsodaxes cavity through is made in the valve hole. The locking element of the valve of the dispenser is made of a valve body having an annular cavity located in the cavity of the elastic element, the rolling Cup and retainer ring to limit the rolling of the glass in the axial direction. The saddle is placed in the cylinder and includes a housing with a focus ring and seal ale is">

The invention relates to pulsed power systems, and is intended to create drilling rigs, hammers, hammers, excavating and cleaning machines used in the mining and coal industry.

Known hydropneumatic actuator, comprising a cylinder with a gas and a liquid cavity, the piston rod and the valve with the valve [1].

The selected drive has low resource conditions, the impact of high pressure and valve control system that does not provide the required performance (tightness).

The closest to the technical nature of the proposed solution is a hydropneumatic actuator containing the cylinder, the front and rear cover, piston, lock, stock, valve with spiral channels and a conical seat that form during Assembly of the gas and liquid cavity [2].

The disadvantage of the prototype is a low leak valve of the distributor, because the manufacture of the valve and seat inevitable presence of deviations form the contact surfaces (sealing and clamping), the resulting misalignment and gaps in the sealing pair, so the contact metal on the first line of contact, as well as uneven wear of the surfaces, because of the possibility of rotation of the valve about the axis during operation.

The problem to which the invention is directed, is to increase the tightness of the valve distributor and increase resource hydropneumoprivod due to the use in sealing the connection of the elastic element of the reduced stiffness (ring).

This is achieved by the fact that hydro-pneumatic pulse drive containing the cylinder, the valve distributor with the locking element with the valve body, gas and wzwodow cavities formed is placed in the cylinder by the piston rod, the latter being covered by the locking element, valve valve, seat and communicated through an external dispenser with pressure and drain lines dokladano cavity formed by the cylinder and valve and communicated with vsodaxes cavity through is made in the valve hole, unlike the prototype of the locking element of the valve of the dispenser is made of a valve body having an annular cavity located in the cavity of the elastic element, rolling glass and retainer ring to limit the rolling of the glass in the axial Jenny in the cavity, formed by focusing the body of the seat ring.

The invention is illustrated in the drawing.

Hydropneumatic actuator consists of a cylinder 1 in which is located a piston 2 having the ability to move in the axial direction. The piston 2 is rigidly fixed to the rod 3, covered by the locking element valve valve consisting of a valve body 4, in the annular cavity which is elastic element 5, and the rolling of the glass 6, which is limited in the axial direction of the fixing ring 7. The cylinder 1 together with the piston 2 forms a gas 15 and wzwodow 10 cavity, and the valve 4 dokladano cavity 9, which periodically communicates with the pressure and return line via the external dispenser. The valve 4 is made throttling holes 8 which provides for the movement of fluid from the pressure loss of dolabani cavity 9 in wzwodow cavity 10. In the cylinder 1 is placed the saddle, consisting of a body 11 located therein by a ring 12, in the case of the saddle 11 is made the stop 13 and the cavity formed by them, is the sealing element 14.

The device operates as follows.

The working fluid under pressure from the pump through an external dispenser comes in dokladano the Wai valve dispenser. When the movement of the locking element of the valve of the distributor first in contact with the body seat shall be movable glass 6. Interacting with the surface of the cylinder 1, the movable glass 6 remains stationary. Upon further movement of the locking element of the valve of the distributor valve 4 compresses the elastic element 5, dissipating the energy of motion. The elastic material properties of the elastic element 5 allows the valve 4 to come into contact with the ring 12 and to maintain its position indefinitely. Advancing valve 4 is elastic deformation of the ring 12, which is free to deform to contact with the stop 13, compensating for errors of form and position, the contact surfaces of the valve 4. The sealing element 14 is deformed, the sealing part vsodaxes cavity 10 bounded by the cylinder 1, the piston rod 3, the valve body 4 and the locking ring 12, a pressure in this part of vsodaxes cavity 10, which when the message dolabani cavity 9 with the sink will ensure movement of the locking element in the direction dolabani cavity 9, the reduction due to this pressure in vsodaxes cavity 10. When this fluid through the throttling holes 8 comes in uzogara is compressed gas, for accumulation of energy for stroke. The forces acting on the piston 2 at the end of the platoon are balanced, and he stops. Then switches external dispenser, and delapena chamber 9 is communicated with the drain line. Under the action of fluid pressure in vsodaxes cavity 10 of the locking element of the valve of the dispenser is moved, opening the valve distributor. The pressure in vsodaxes cavity falls below a minimum close to zero. The piston 2 with the rod 3 under the action of the gas expanding in the cavity 15, makes a working stroke (drawing left) and displaces the liquid from vsodaxes cavity 10 in the case drain line. After completion of the stroke of the outer dispenser switches and reports dokladano cavity with a pressure line. The cycle repeats.

Use the hydropneumatic actuator with a movable glass and the elastic element allows to reduce shock at the site of contact with the valve seat, and the seat with the sealing element and the ring, to reduce the operational requirements of the geometrical shape of the contact surface of the valve seat and the valve, thereby reducing the wear of the valve of the dispenser, extended service life hydropneumatic leads to an increase in the efficiency of hydropneumoprivod.

Sources of information

1. A. S. No. 889838. Hydraulic percussion device.

2. A. C. No. 444878. Hydropneumatic actuator (prototype).

Claims

Hydro-pneumatic pulse drive containing the cylinder, the valve distributor with the locking element with the valve body, gas and wzwodow cavities formed is placed in the cylinder by the piston rod, the latter being covered by the locking element, valve valve, seat and communicated through an external dispenser with pressure and drain lines dokladano cavity formed by the cylinder and the valve c and reported vsodaxes cavity through is made in the valve hole, wherein the locking element of the valve of the dispenser is made of a valve body having an annular cavity located in the cavity of the elastic element, rolling glass and retainer ring to limit the rolling of the glass in the axial direction, and the saddle is placed in the cylinder and includes a housing with a focus ring and a sealing element located in the cavity formed by the rest of the body of the seat ring.

 

Same patents:

The invention relates to the mining industry and construction, in particular for pneumatic machines percussion

Pneumatic hammer // 2213866
The invention relates to the mining industry, in particular, to pneumatic hammers for destruction, for example, rock and can be used to create air hammers

The invention relates to pulsed power systems, and is intended to create drilling rigs, hammers, hammers excavating and cleaning machines used in the mining and coal industry

Pneumatic hammer // 2174600
The invention relates to the mining industry, in particular to pneumatic hammers, and can be used when creating a pneumatic percussive machines both manual and non-manual

The invention relates to mechanical engineering and can be used in the production of impact machines

The invention relates to the field of mining, in particular to machines percussion, and can be used as a percussion mechanism for drilling holes in rocks of high strength

Pneumatic hammer // 2127365
The invention relates to the mining industry and construction, in particular to pneumatic hammers for demolition of rock and concrete

Pneumatic hammer // 2120550
The invention relates to the field of mining industry and is a pneumatic hammer comprising a housing with exhaust holes and drummer, arm, cover-muffler with the cap tightly secured the crown with slanted through the slots, the tiers of radial outlet channels, a work tool with the device to hold it in place, and the crown is fixed inside the casing of the silencer, which side of the hood is equipped with vozduhoobmenu conical ring, tapering in the direction of the working tool, and the tiers of the exhaust channels made in the cap and at the level of the cone ring

The invention relates to the construction and road machines, namely, hydraulic machines, impact, and can be used in mining, metallurgical industry

The invention relates to pulsed power systems, and is intended to create drilling rigs, hammers, hammers excavating and cleaning machines used in the mining and coal industry

The invention relates to coal shearers and can be used in the coal industry

Mountain harvester // 2171375
The invention relates to equipment for mechanization of extraction of natural resources in their production treatment faces underground

The invention relates to equipment for mechanization of excavation strong coal and other minerals from thin and very thin layers

The invention relates to equipment for mechanization of excavation strong coal and other minerals from thin and very thin layers

The invention relates to the field of engineering, namely, to methods and devices for post-repair testing of electrical DC machines and, in particular, at mining enterprises for post-repair testing of motors, generators, excavators, drilling rigs, etc

The invention relates to means for simultaneous blasting and loading for underground excavation of coal and can be used to plow the groove

The invention relates to mining and is intended for mining machines

The invention relates to pulsed power systems, and is intended to create drilling rigs, hammers, hammers excavating and cleaning machines used in the mining and coal industry
Up!