RU189553U1 - WORKING EQUIPMENT OF SINGLE-BIT HYDRAULIC EXCAVATOR - Google Patents

Abstract

The working equipment of the single-bucket hydraulic excavator belongs to the mining industry and can be used in the earth-moving equipment used during the overburden and mining operations. The technical result is to simplify the design, as well as the operation and maintenance of the working equipment of the single-bucket hydraulic excavator. The driver’s ability to control the excavation process on the bucket’s capacity and its possible collision with an obstacle in the rock (oversize, tree roots, etc.). This result is achieved by the fact that the bucket is made monolithically with levers that are pivotally connected to rods, and the rods are pivotally connected with bucket turn cylinder and grip. The bucket has teeth on both sides of the working edge. From the device, taken as a prototype, the upper part of the bucket and the hydraulic cylinders installed on it were excluded, thereby simplifying the design of the working equipment of a single-bucket hydraulic excavator, and, consequently, its operation and maintenance.

Description

The working equipment of a single-bucket hydraulic excavator belongs to the mining industry and can be used in the earth-moving equipment used during the stripping and mining operations.

Known working equipment of the earthmoving machine according to the patent RU, 2047692, cl. E02F 3/28; E02F 3/40, publ. 11/10/1995, containing the boom, its lifting mechanism, a bucket with two cutting edges located on opposite sides of its bottom, and a rear pivoting wall overlapping the bucket section, as well as a bucket turning mechanism relative to the rear wall, while the rear wall of the bucket is made of placing it in the ends of its other walls, for which the hinge connecting them is installed in its middle part, the mechanism of the bucket turning relative to the boom interacts directly with its back wall, on the back side of which there is a fur Norm of mutual rotation and fixation of the bucket and its rear wall; longitudinal axes of installation hinges on the rear wall boom and connection of the latter with the bucket are displaced relative to each other; and the mechanism of rotation and fixation of the bucket relative to the rear wall and the hinge fixing unit on opposite sides of the hinge suspension rear wall together with a bucket relative to the boom.

The disadvantage of this device is the complexity of its design, and also causes difficulties in its operation, namely, protruding forward the back wall of the bucket limits its introduction into the rock mass, especially when the vertical excavation of the ledge. In addition, at this moment, the excavator driver does not control the filling of the bucket and the possible collision of the bucket with an obstacle in the rock (oversize, tree roots, etc.).

Known working equipment of the excavator according to the patent RU, 110389, cl. E02F 3/28; E02F 3/40, publ. 11/20/2011, containing an arrow, a handle, a bucket, made with a movable rear wall hinged on an axis and placed between the side walls, the movement of which is limited by stops fixed to the side walls, the bottom of the bucket has a rounded shape and is equipped with two cutting edges fixed on the ends of the bottom, the hydraulic cylinders turning the boom, stick and bucket, as well as thrust.

The disadvantage of this device is the complexity of its design, and also causes difficulties in operation, namely, when excavating, for example, wet overburden, they stick to the bottom and walls of the bucket, which prevents movement of the movable rear wall, thereby reducing the bucket filling volume.

Known working equipment single-bucket hydraulic excavator (selected for the prototype) according to the patent RU, 2118426, CL. E02F 3/28, publ. 08/27/1998, containing a handle, a hydraulic cylinder for turning the bucket, which consists of upper and lower parts, which are articulated between each other. The upper part is fixed on the handle and the hydraulic cylinder mounted on it. The lower part of the bucket is made with teeth on both sides of the working edges, and the top - with the corresponding grooves. On the cheeks of the upper part there are installed hydraulic cylinders connected to the levers fixed on the lower part of the bucket.

The disadvantage of this device is the complexity of its design, which complicates its operation and maintenance. In addition, at the time of excavation using the “direct shovel” method, the excavator driver does not control the filling of the bucket and its possible collision with an obstacle in the rock (oversize, tree roots, etc.).

The technical result is to simplify the design, as well as the operation and maintenance of the working equipment of a single-bucket hydraulic excavator. Opportunity to control the process of excavation for the driver on the fullness of the bucket and its possible collision with an obstacle in the rock (oversize, tree roots, etc.).

This result is achieved by the fact that the bucket is made monolithically with levers that are pivotally connected to the rods, and the rods are pivotally connected to the hydraulic cylinder of the rotation of the bucket and the handle. The bucket has teeth on both sides of the working edge. From the device, taken as a prototype, the upper part of the bucket and the hydraulic cylinders installed on it were excluded, thereby simplifying the design of the working equipment of a single-bucket hydraulic excavator, and, consequently, its operation and maintenance.

The sketch shows the device.

The working equipment of the single-bucket hydraulic excavator includes a bucket 1 made monolithically with levers 2, which are pivotally connected to rods 3, and the rods 3 are pivotally connected to the hydraulic cylinder 4 of the rotation of the bucket 1 and the handle 5. The bucket 1 has teeth 6 on both sides of the working edge.

The device works as follows.

When working with the “straight shovel” method, the hydraulic cylinder 4 of the rotation of the bucket 1, making a return stroke, transmits the force to the thrust 3 and the levers 2 to the bucket 1, inserting it into the rock away from the excavator. Having filled the bucket 1 with a breed, the driver raises the handle 5 of the excavator and moves the bucket 1 with the breed for unloading. Unloading is carried out by tilting the bucket 1 when the maximum position of the rod of the hydraulic cylinder 4 is reached, when the bucket 1 rotates when it is reversed.

When working with the “reverse shovel” method, the hydraulic cylinder 4 of the rotation of the bucket 1, making a forward stroke, transmits the force to the thrust 3 and the levers 2 to the bucket 1, inserting it into the rock in the direction of the excavator. Having filled the bucket 1 with a breed, the driver raises the handle 5 of the excavator and moves the bucket 1 with the breed for unloading. Unloading is carried out by tilting the bucket 1 when the maximum position of the rod of the hydraulic cylinder 4 is reached, when the bucket 1 rotates when it is reversed.

The teeth of the 6 working edges of the bucket 1 loosen the rock and facilitate the introduction of the bucket into it 1.

Compared with the prototype, the proposed utility model will simplify the design, as well as the operation and maintenance of the working equipment of the single-bucket hydraulic excavator. In addition, the driver of the excavator cab has the ability to control the bucket filling volume, its possible collision with an obstacle in the rock (not dimensions, tree roots, etc.), thereby eliminating overload, wear and failure of equipment.

Claims (1)

Working equipment of a single-bucket hydraulic excavator, including a handle, a bucket pivotally connected to it, having teeth on both sides of the working edge, a bucket turning hydraulic cylinder, characterized in that the bucket is made integrally with levers that are pivotally connected to the rods, and the rods are pivotally connected to the turning hydraulic cylinder bucket and grip.

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