Hydroficated rotary drive for bucket of single bucket machine rotation

FIELD: dredgers and soil-shifting machines, particularly drives for building, road-building and hoisting machines provided with hydraulic drives and subjected to great loads applied to executive tools.

SUBSTANCE: hydroficated drive has power hydraulic cylinder with rod end and piston end connected to hydraulic system of earth-shifting machine. Power cylinder is installed on handle and has body to be rigidly fixed in any point thereof. Hydraulic cylinder used for bucket rotation is made as double-acting hydraulic cylinder with double-acting rod having ears to be hinged with the bucket in points of its fixation. Longitudinal axis of hydraulic cylinder and bucket fixation points are arranged on closed circle. Circle perimeter is equal to two rod travels and length of arch between bucket supports.

EFFECT: extended range of bucket rotation angle and simplified structure thereof.

4 dwg

 

The invention relates to hydraulic drive systems of the working body building, road and lifting-transport machines with hydraulic drive working under significant load on the working equipment, namely hydraulic actuator rotation of bucket shovel machine.

Known hydraulic actuator rotation of the bucket containing pivotally connected master cylinder, lever, rod and bucket, as the pivot arm applied to the auxiliary hydraulic cylinder double acting with double-sided piston rod, piston and rod end which hydrologically connected with the piston rod and the cylinder chamber sensor, pivotally attached to the main cylinder and deadlift supply lines through two check valves are interconnected and connected to the hydraulic accumulator (see the patent. Of the Russian Federation. No. 2059766. Hydraulic swing drive bucket digging machine).

The disadvantages of the known analogue should include a small cutting force on the cutting edge of the bucket and the lack of range of change of the angle of rotation.

The closest in technical essence to the invention is a hydraulic actuator rotation of the bucket containing pivotally connected to the bucket rod, pivotally attached to the main thrust of the hydraulic cylinder, the sensors and the lever, made in the form of su is magatelli cylinder double acting with double-sided stem the pull is made in the form of a hydraulic cylinder double acting with double-sided piston rod, piston and rod end which hydrologically connected to the hydraulic shovel machine (see patent. Of the Russian Federation. No. 2208095. Hydraulic swing drive bucket shovel machine).

The disadvantages of the prototype should include the complexity of the design and lack of range of change of the angle of rotation of the bucket.

Technical result - increase the range of variation of the angle of rotation of the bucket and simplifying its design.

The technical result is achieved by the hydraulic actuator rotation of bucket shovel hydraulic machines containing power cylinder mounted on the handle and the bucket, the body of the cylinder is rigidly connected to the handle at any point, the power cylinder of rotation of the bucket is a hydraulic cylinder double acting with double-sided stem, both eyelets of the rod is pivotally connected to the bucket at the points of its attachment, with the longitudinal axis of the cylinder and the point of attachment of the bucket lie on a closed circle, and the length of the closed circle is equal to two strokes of the rod and the arc length between the supports of the bucket.

1 shows the inventive drive rotation of the shovel bucket hydraulic machine; figure 2 shows the position of the bucket of the proposed actuator to end point is x; figure 3 presents one way of fastening of a casing of the hydraulic cylinder to the handle (at any point).

Hydraulic swing drive bucket shovel digging machine has power cylinder 1 mounted on the handle 2 and bucket 3, the housing of the hydraulic cylinder is rigidly connected to the handle at any point, the power cylinder of rotation of the bucket is a hydraulic cylinder double acting with double-sided stem, both eyelets of the rod is pivotally connected to the bucket at the points of its attachment, with the longitudinal axis of the cylinder and the point of attachment of the bucket lie on a closed circle, and the length of the closed circle is equal to two strokes of the rod and the arc length between the supports of the bucket, rod and piston cylinder cavity attached to the hydraulic system of earth-moving machines.

The inventive hydraulic actuator rotation of bucket digging machine operates as follows.

When the flow of operating fluid from the dispenser 4 hydraulic piston machine in the cavity of a cylinder 1 double acting with double-sided stem, directly on the bucket passes the effort and produces the digging of the piston cavity fluid goes back into the hydraulic system of the machine.

Thus, the use of the inventive actuator rotation of bucket shovel machine makes it possible to increase the range of variation of the angle at which orota bucket and simplifies its design.

Hydraulic swing drive bucket shovel machine containing the power cylinder, rod and piston cavity which is connected to the hydraulic system of earth-moving machines, characterized in that the power cylinder mounted on the handle, while its body is made with the possibility of rigid connection with the handle at any point, and the power cylinder of rotation of the bucket is a hydraulic cylinder double acting with double-sided rod having eyes to swivel with bucket at the points of its attachment, with the longitudinal axis of the cylinder and the point of attachment of the bucket lie on a closed circle, and the length of the closed circle is equal to two strokes of the rod and the arc length between supports ladle.



 

Same patents:

FIELD: dredgers and soil-shifting machines, particularly drives for building, road-building and hoisting machines provided with hydraulic drives and subjected to great loads applied to executive tools.

SUBSTANCE: hydroficated drive has power hydraulic cylinder with rod end and piston end connected to hydraulic system of earth-shifting machine. Power cylinder is installed on handle and has body to be rigidly fixed in any point thereof. Hydraulic cylinder used for bucket rotation is made as double-acting hydraulic cylinder with double-acting rod having ears to be hinged with the bucket in points of its fixation. Longitudinal axis of hydraulic cylinder and bucket fixation points are arranged on closed circle. Circle perimeter is equal to two rod travels and length of arch between bucket supports.

EFFECT: extended range of bucket rotation angle and simplified structure thereof.

4 dwg

FIELD: physics, control.

SUBSTANCE: invention relates to machine working equipment control means. Proposed control system comprises transducer to output working equipment measuring signal indicating the machine working equipment speed caused by machine inclination and controller. Note here that said controller can receive said measuring signal, operator's control signal and to define corrected operator's signal with allowance for aforesaid measuring signal and operator's signal. Note here that corrected operator's control signal is partially compensated for shortage of said operator's control signal. Besides, invention covers the method of correction of earth handling equipment.

EFFECT: corrected speed on uneven surface.

21 cl, 9 dwg

FIELD: transportation.

SUBSTANCE: working vehicle is proposed, comprising: a chassis; at least one traction device supporting the chassis; at least one hydraulic actuator connected to the chassis; and a hydraulic circuit made with the possibility to control at least one hydraulic actuator. Wherein the hydraulic circuit comprises: a source of a hydraulic fluid; a feeding device communicating with the source and at least one hydraulic actuator for feeding the hydraulic fluid; a first return pipeline from the feeding device to the source, and a second return pipeline from the feeding device to the source. The first return pipeline comprises a first flow control device and a cooler. The first flow control device allows the hydraulic fluid to pass through the first return pipeline, when the pressure in the hydraulic circuit exceeds the first passage pressure of the first flow control device. The second return pipeline bypasses the cooler on the first return pipeline. Wherein the second return pipeline comprises a second flow control device allowing the hydraulic fluid to pass through the second return pipeline, when the pressure in the hydraulic circuit exceeds the second passage pressure of the second flow control device. Also, the hydraulic circuit comprises a controller in communication with at least one of the first and the second flow control devices for controlling at least one of the first and the second passage pressures, and a control valve in communication with the controller and a first check valve. Wherein the control valve has: the first, neutral, position, which provides pressure relief from the first check valve; and the second position, which directs pressure to the first check valve to increase the first actuation pressure of the first check valve.

EFFECT: improving the control and efficiency of hydraulic fluid heating in a working vehicle.

20 cl, 4 dwg

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