Tool with reduced hydraulic oil exchange

FIELD: agriculture.

SUBSTANCE: frame has seven sections in the position for use in the field and nine sections in the folded position. The frame construction allows the frame having the width more than 27 m to be folded into the transport position having the width of less than eight meters and the height of less than six metres. The hydraulic system is used to carry the weight to the main or central frame section during folding and unfolding in order to increase the frame stability. The hydraulic system uses one or more accumulators to minimize the amount of oil reduction in the tractor tank, caused by the extension of the hydraulic cylinders of the tool. The time periods of the tool raising and lowering cycle are minimized due to providing the second auxiliary cylinder for lifting the main section of the frame when the weight of the entire tool is on the main section and for enabling the use of a smaller cylinder for lifting the main frame section in the position for use in the field and shortening the time periods of the tool raising and lowering cycle for turns in the field.

EFFECT: increasing the frame stability during the folding process and reducing the load on the inner wheel assemblies.

6 cl, 17 dwg

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: expandable accumulator and tank unit comprising a tank pre-setting an internal chamber with the working fluid medium inside, and an expandable accumulator. The expandable accumulator comprises the inner layer pre-setting the internal space which contains the working fluid medium, and the external layer, at least partially surrounding the inner layer. The inner layer is characterized by a failure strain, higher than that of the external layer. The accumulator is at least partially located in the tank and at least partially is immersed into the working fluid medium contained in the internal chamber.

EFFECT: accumulator is designed with a possibility of exchange of the working fluid medium with the tank.

33 cl, 14 dwg

FIELD: machine building.

SUBSTANCE: described is an actuating mechanism for a device, e.g., for a gas or steam turbine valve, or in the most common case for fittings for controlling the flow of a fluid process medium, having an electric drive and an emergency actuation system for returning the device to the initial position in case of a fault using an actuating element. The emergency actuation system has an energy storage whose energy is used to return the actuating element to the initial position. According to the invention, the energy storage is operably coupled to a piston which, in order to charge the energy storage, is pressure-loaded in a working chamber under pressure, which is linked through a switching valve to a tank or similar container, and which is thereby moved by the energy storage during discharge thereof. The piston interacts with the actuating element of the electric drive for movement thereof in the direction of returning to the initial position.

EFFECT: high efficiency.

6 dwg

Hydraulic cylinder // 2534331

FIELD: engines and pumps.

SUBSTANCE: invention relates to displacement hydraulic motors designed to convert working fluid power into mechanical power of reciprocating output link. Hydraulic cylinder comprises body with fasteners consisting of front cover with replaceable bush and rear cover equipped with seals and fasteners, rod with piston with seals articulated therewith and bellow secured to housing front part, bellow inner chamber being connected by air duct with spring-type pneumatic accumulator.

EFFECT: higher reliability and efficiency.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to brake systems. Hydraulic accumulator comprises high pressure accumulating chamber, mean pressure accumulating chamber and barometric pressure accumulating chamber. Said high pressure accumulating chamber, mean pressure accumulating chamber and barometric pressure accumulating chamber are arranged in common housing to confine, along with high-pressure piston displacing in said housing, the high-pressure accumulating chamber and, with mean-pressure piston displacing the housing, the mean-pressure accumulating chamber. High-pressure spring fitted in the housing rests on high-pressure piston outside high-pressure accumulating chamber while mean pressure fitted in the housing rests on mean pressure piston outside the mean pressure accumulating chamber.

EFFECT: hydraulic brake accumulator overall dimensions and weight are decreased.

8 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: herein methods and devices for accumulator charging are disclosed. Design of the system for accumulator unit charging comprises a piston inside the body thus forming the first chamber joining the first side of the piston and the second chamber joining the second side of the piston. The filling sensor having a case and passage between the first end and the second end of the filling sensor is connected by detachable connection to the piston in order to connect via fluid through the filling sensor passage to the second chamber of the body when the accumulator unit is in charging state. If the filling sensor is connected to the piston, the valve is connected via fluid to the piston in order to endure fluid flow to the second chamber of the body through the piston.

EFFECT: reducing maintenance costs.

36 cl, 10 dwg

FIELD: engines and pumps.

SUBSTANCE: pneumatic drive system comprises compressor, pneumatic accumulator, two diverter valves, two slide valves, two fuel injectors, two compressor drive pistons, compressor piston and check valves. In one ICE cylinder working fluid at compression stroke thrusts against compressor drive piston surface. This makes both compressor drive pistons and compressor piston displace towards the other cylinder. Here, air is compressed in one chamber of compressor piston and fed via check valve into pneumatic accumulator. Air is sucked via check valve from atmosphere into compressor piston opposite chamber. With pistons at compression cycle TDC, compressed fluid in second cylinder thrusts against the compressor drive second piston surface. This makes both compressor drive pistons and compressor piston reverse the direction to start another cycle of pneumatic accumulator charging.

EFFECT: simplified design.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: for cleaning of air accumulator from accumulated foreign matters (engine part wear products, fuel incombustible admixtures, etc.), control system generates the blowdown valve opening signal periodically and at the engine run-up cycle start. Blowdown valve opens to eject air from said accumulator along with impurities. Thereafter control system closes said valve to make it ready for the next operation cycle. Direct blowdown feature consists in air accumulator charging and discharging via air accumulator inlet and ejection in atmosphere is realised via air accumulator outlet.

EFFECT: higher reliability.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: for cleaning of air accumulator from accumulated foreign matters (engine part wear products, fuel incombustible admixtures, etc.), control system generates the blowdown valve opening signal periodically and at the engine run-up cycle start. Blowdown valve opens to eject air from said accumulator along with impurities. Thereafter control system closes said valve to make it ready for the next operation cycle.

EFFECT: higher reliability.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: for cleaning air accumulator and air lines of accumulated foreign matters (incombustibles, engine part wear products, etc.), control system periodically opens the blowdown valve when pressure in combustion chamber is lower than that in air accumulator to eject air from said accumulator along with dirt via shutoff valve into combustion chamber.

EFFECT: higher reliability.

1 dwg

FIELD: machine building.

SUBSTANCE: system comprises a hydraulic amplifier, by means of which summary forces are generated, acting at a load, at least one working chamber operating in accordance with a displacement principle and located in the specified hydraulic amplifier, one circuit of make-up of high pressure and one circuit of make-up of low pressure, a control circuit, by means of which one of the working chambers may be connected in turns to one of the above circuits of make-up of high and low pressure, at the same time the control circuit comprises for each pre-determined chamber the controlled interfaces of control, by means of which connection to the circuit of make-up of high pressure or low pressure may be opened or closed, besides, each working chamber may generate power components, which correspond to pressures of make-up circuits connected to the specified working chamber, and each power component creates at least one of the above summary forces, separately or jointly with the power components, generated by other working chambers of the specified hydraulic amplifier.

EFFECT: reduced energy losses.

45 cl, 18 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agricultural machinery industry, in particular to multi-sectional part agricultural working equipment, namely to hinge for folding sections. The double hinge comprises two axes of rotation and is mounted between the sections of a multi-sectional agricultural working equipment. One axis of rotation is active both in folding the sections, and in field operations. Another axis of rotation is active in field operations, but is blocked in folding the sections for transportation of the equipment on the roads.

EFFECT: constructive solution is aimed at providing bending of sections during field operations.

21 cl, 13 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to a drill (1) comprising a frame (2) with a substantially horizontal transverse beam (3) on which the sowing elements (4) are mounted at regular intervals. The said transverse beam (3) comprises a central part (5) and two side parts (6) arranged on both sides of the said central part in the operative position and raised substantially above the said central part (5) in the transport position. Each side part (6) is connected to the said frame (2) by means of respective rack (7) and is made with the ability of transverse and vertical movement relative to the said frame (2) by means of a deformable mechanism (8) controlled by the manoeuvring jack (9). The deformable mechanism (8) is displaced relative to the other deformable mechanism (8) taking into account the direction of motion (A). In the operating position the side parts (6) are aligned and located in the continuation of the central part (5).

EFFECT: invention enables to increase the working width of the drill without exceeding the limits of the regulated road dimension.

10 cl, 3 dwg

FIELD: transport.

SUBSTANCE: proposed machine comprises articulated three frame sections with working tools. Front and second sections (1) and (7) are coupled by hydraulic cylinder (16) for upward turn of second section (7) on pins (9) of articulation with front section (1). Front and third sections (1) and (13) are coupled by con-rod (17) with pins (18) and (19) of these sections. Con-rod (17) pin axle (18) is located ahead of and above pin (10) of articulation between first and second sections (1) and (7). Pin (19) of articulation between con-rod (17) with frame third section (13) is fitted on its top end ahead of pin of articulation between second and third sections (7) and (13). Pin (19) has crosswise bore to receive con-rod and can turn about its axis. In run-in position, distance between remote points of pins (18) and (19) for con-rod (17) is smaller than its working length (S), In working position, said distance equals the con-rod (17) working length while angle between second and third sections (7) and (13) is not smaller than 90 degrees.

EFFECT: reliable conversion from in-run to working position.

2 cl, 3 dwg

FIELD: agriculture.

SUBSTANCE: machine comprises chassis, engine, control cabin, link mechanism, and at least two working sets joined to link mechanism of agricultural machine by means of link frame. At least two working sets are arranged with the possibility of rotation between working position, in which working sets are arranged substantially horizontally and transversely to direction of working movement, and transport position, in which working sets are arranged substantially above chassis. Link mechanism is connected to chassis through rigid structure, which is connected to chassis by means of transverse hinged joint. Between chassis and rigid structure there is at least one drive to provide for rotation of rigid structure around transverse hinged joint.

EFFECT: improved efficiency, simplified design, reduced dimensions and expanded functional capabilities.

15 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: device contains the first part of oscillation shaft, the second part of oscillation shaft; collapsible pivot, connecting the first and the second part of oscillation shaft and facilitating displacement of instrument section relative to each other. Collapsible pivot contains device for adjusting of angular position of the first part of oscillation shaft. Farm implement allows multitude of sections, herewith instrument contains device for oscillation shaft.

EFFECT: facilitation of instrument section displacement.

18 cl, 5 dwg

The invention relates to agricultural machinery, in particular to multiple-mainly tillage tools

FIELD: agriculture.

SUBSTANCE: frame has seven sections in the position for use in the field and nine sections in the folded position. The frame construction allows the frame having the width more than 27 m to be folded into the transport position having the width of less than eight meters and the height of less than six metres. The hydraulic system is used to carry the weight to the main or central frame section during folding and unfolding in order to increase the frame stability. The hydraulic system uses one or more accumulators to minimize the amount of oil reduction in the tractor tank, caused by the extension of the hydraulic cylinders of the tool. The time periods of the tool raising and lowering cycle are minimized due to providing the second auxiliary cylinder for lifting the main section of the frame when the weight of the entire tool is on the main section and for enabling the use of a smaller cylinder for lifting the main frame section in the position for use in the field and shortening the time periods of the tool raising and lowering cycle for turns in the field.

EFFECT: increasing the frame stability during the folding process and reducing the load on the inner wheel assemblies.

6 cl, 17 dwg

FIELD: agriculture.

SUBSTANCE: frame has seven sections in the position for use in the field and nine sections in the folded position. The frame construction allows the frame having the width more than 27 m to be folded into the transport position having the width of less than eight meters and the height of less than six metres. The hydraulic system is used to carry the weight to the main or central frame section during folding and unfolding in order to increase the frame stability. The hydraulic system uses one or more accumulators to minimize the amount of oil reduction in the tractor tank, caused by the extension of the hydraulic cylinders of the tool. The time periods of the tool raising and lowering cycle are minimized due to providing the second auxiliary cylinder for lifting the main section of the frame when the weight of the entire tool is on the main section and for enabling the use of a smaller cylinder for lifting the main frame section in the position for use in the field and shortening the time periods of the tool raising and lowering cycle for turns in the field.

EFFECT: increasing the frame stability during the folding process and reducing the load on the inner wheel assemblies.

6 cl, 17 dwg

FIELD: agriculture.

SUBSTANCE: folding tool frame has seven sections in position for use in the field and nine sections in the folded position. The frame has a width of more than 27 meters. In the transport folded position, the frame width is less than eight meters, and its height is less than six meters. The hydraulic system is used to transfer the mass to the main or central section of the frame during folding and unfolding to increase the stability of the frame. The hydraulic system uses one or more accumulators to minimize the reduction in the amount of oil in the tractor tank caused by the extension of the hydraulic cylinders of the tool. The periods of the tool lifting and lowering cycles are minimized by providing the second auxiliary cylinder for lifting the main frame section when the mass of the entire tool is on the main section, and by enabling the use of a smaller cylinder to lift the main frame section in the position to use cycles of lifting and lowering the tool for turns in the field for shorter time periods.

EFFECT: increased operating width of the tool frame, possibility of folding the tool into a smaller configuration for transportation.

6 cl, 19 dwg

FIELD: machine building.

SUBSTANCE: device contains the first part of oscillation shaft, the second part of oscillation shaft; collapsible pivot, connecting the first and the second part of oscillation shaft and facilitating displacement of instrument section relative to each other. Collapsible pivot contains device for adjusting of angular position of the first part of oscillation shaft. Farm implement allows multitude of sections, herewith instrument contains device for oscillation shaft.

EFFECT: facilitation of instrument section displacement.

18 cl, 5 dwg

FIELD: agriculture.

SUBSTANCE: machine comprises chassis, engine, control cabin, link mechanism, and at least two working sets joined to link mechanism of agricultural machine by means of link frame. At least two working sets are arranged with the possibility of rotation between working position, in which working sets are arranged substantially horizontally and transversely to direction of working movement, and transport position, in which working sets are arranged substantially above chassis. Link mechanism is connected to chassis through rigid structure, which is connected to chassis by means of transverse hinged joint. Between chassis and rigid structure there is at least one drive to provide for rotation of rigid structure around transverse hinged joint.

EFFECT: improved efficiency, simplified design, reduced dimensions and expanded functional capabilities.

15 cl, 7 dwg

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