WO2016013957A1

WO2016013957A1 - Vehicle attachment

Info

Publication number: WO2016013957A1
Application number: PCT/RU2015/000044
Authority: WO
Inventors: Сергей Иванович БЕЖКИНЁВ
Original assignee: Сергей Иванович БЕЖКИНЁВ
Priority date: 2014-07-22
Filing date: 2015-01-27
Publication date: 2016-01-28
Also published as: US20170114520A1

Abstract

A vehicle attachment comprising a three-position blade mounted on a frame, the wings of the blade being connected to one another by a pivot shaft. Elements for attachment to a self-propelled vehicle are situated on one side of the frame, while brackets for connection, via sliders, to the wings of the blade are situated on the other side. Hydraulic cylinders for rotating the wings of the blade are symmetrically fastened to the frame, between the brackets. The rods of the hydraulic cylinders are pivotally connected to the pivot shaft of the blade wings, and the body of each hydraulic cylinder is connected to the frame by a pin. The pivotal connection of the blade to the attachment frame via sliders makes it possible to alter the angle at which the sections of the blade are mounted in a horizontal plane, with the wings of the blade being rotated in synchronism by the movement of the hydraulic cylinders.

Description

Vehicle Attachments

The utility model relates to the field of road engineering, namely, to the construction of attachments for organizing the primary passage in snowy fields, for leveling and moving soil and snow, and can be used as attachments designed, in particular, to work with a mini-loader type "Bobcat".

A bulldozer snow blower is known, comprising a V-shaped rotary blade with a central rotary axis, mounted to adjust the angle of inclination of the knife to the road surface. The central swivel hinge is attached to the tractor frame in the lower part of the blade with the possibility of changing the angle of inclination of the cutting edge of the knife to the road surface. The blade wings are rotated by the corresponding hydraulic cylinders operating independently of each other (see patent US L 3157099, IPC E02F3 / 76; E02F3 / 80, published on November 17, 1964).

The design drawback is that it is necessary to use hydraulic cylinders to ensure the rotation of the wings with a long stroke. The ability to mount only on tracked tractors of the bulldozer type.

Known plow snow blower containing a base chassis mounted on a frame that carries a two-piece blade, the sections of which are connected to the frame by means of a vertical cylindrical hinge centrally located on the chassis and brackets pivotally attached to them at one end, also pivotally connected to other ends with a slider mounted to move on the longitudinal guide of the frame, while it is equipped with an additional longitudinal guide mounted on the frame mounted on it an additional slider located between the guide screw associated with the transmission of the base chassis, and a split nut, each part of which is spring-loaded relative to the corresponding slide with the ability to move perpendicular to the longitudinal axis of the screw and is connected to the corresponding lever mechanism fixed to it (see RF patent JV ° 2035541, IPC E01H5 / 06, publ. 05.20.1995).

The location of the guides with movable sliders along the longitudinal axis of the vehicle increases the overall dimensions of the blade along the the longitudinal axis and increases the turning radius of the base chassis with attached equipment, since the wings are significantly removed from the front axle of the vehicle.

Transfer of shear loads through a long lead screw does not allow performing work with heavy working material — sand and gravel moving, soil planning.

The closest technical solution to the claimed one is a snow blower designed for installation on a self-propelled vehicle (a passenger car equipped with a towbar) with a mount at the rear of the car, containing a V-shaped three-position blade, the wings of which are connected are connected with sliders pivotally mounted on a telescopic pipe (see US Pat. Nos. 5050322, MHZH E01H5 / 06, E01H5 / 04, published on September 24, 1991).

In the known snow thrower, a telescopic tube is used as a frame, which is a guide for the movement of sliders articulated by rods with the wings of the blade. The angle of rotation of the wings of the blade is changed by manual installation when the vehicle is stopped and parked. The rotation of the wings is performed synchronously in both directions. Each wing is equipped with its own swivel joint located at a given distance from each other.

A disadvantage of the known design is its low strength, due to the cantilever design of the frame, which determines its low functional capabilities, in particular, the known construction of the blade cannot provide work with heavy working material, such as soil, sand and gravel.

In addition, this makes it difficult to operate with the snow blower in tight places, increasing the turning radius of the car, which reduces the overall maneuverability of the device.

The objective of this utility model is to increase the maneuverability and functionality of the design of attachments.

The technical result achieved by solving the task is to provide strength parameters and small dimensions when performing multifunctional tasks by maximizing the fastening of the moving parts to the frame structure of the base unit.

The task is achieved by the fact that in the attachment to the vehicle containing a three-position blade mounted on the frame, the wings of which are connected to each other by the axis of rotation, and the hydraulic cylinder for turning the wings of the blade, according to the utility model, the upper and lower guides in which the sliders are connected, connected with the frame by means of axes, the cylinder wings of the blade wings are fixed on the frame, and the rods of the hydraulic cylinders are pivotally connected to the axis of rotation of the wings of the blade.

The claimed combination of features allows you to provide:

- compact design due to the organization of parts and assemblies of mounted equipment in a minimum technological space;

- strength and maneuverability of the structure due to the lack of cantilever nodes;

- the functionality of the structure due to the change in the position of the wings of the blade to carry out work on different equipment with different working material - snow, soil, sand, gravel.

This is due to the fact that the nodes for turning the blade wings to different positions, depending on the required operating conditions, are placed on the frame structure.

The inventive utility model is illustrated by drawings, in which Fig. 1 shows a weight equipment, a top view, in Fig. 2 is a rear view, in FIG. 3 is a side view, in FIG. 4 front view.

Positions in the drawings mean the following: 1 - attachment frame; 2 - dump; 3 wings of the blade 2, 4 - axis of rotation of the wings 3 of the blade 2; 5 - elements of fastening to a self-propelled vehicle are placed; 6 - brackets for connecting with the wings 3 of the blade 2; 7 - sliders; 8 - guides of the sliders 7; 9 - axis of the connection of the sliders 7 with the frame 1; 10 - emphasis; 11 - hydraulic cylinders of rotation of the wings 3 of the blade 2; 12 - the rods of the hydraulic cylinders 11; 13 - axis of attachment of the hydraulic cylinders 11 to the frame 1; 14 - blade knives 2.

The attachment to the vehicle comprises a three-position blade 2 mounted on the frame 1, the wings 3 of which are connected to each other by the rotation axis 4.

The wings 3 of the blade 2 can be made of bent sheet metal at the rear with reinforcements, for example, in the form of two longitudinal channel-shaped profiles connected by transverse ribs in the longitudinal direction, which is necessary to ensure the strength characteristics of the wings 3 of the blade 2.

The frame 1 of the hitch is designed to install equipment on a standard slab of the front-end skid steer loader and is the basic load-bearing structure for all component parts of the attached equipment. On the frame 1, on the one hand, there are placed the fastening elements 5 to the self-propelled vehicle, and on the other hand, brackets 6 for connecting with the wings 3 of the blade 2 by means of the sliders 7 (Fig. 1).

The connection of each of the wings 3 of the blade 2 with the frame 1 of the hitch is carried out by means of four guides 8 of cylindrical shape mounted on the wings 3 of the blade 2 and four sliders 7, hingedly connected to the frame 1 by means of axes 9 (Figs. 1 and 2).

Stops 10 are placed in the guides 8 to limit the movement of the sliders 7 along them.

In addition, the stops 10 in the extreme positions of the blade 2 allow you to synchronize the position of the wings 3 of the blade 2 relative to its longitudinal axis.

On the frame between the brackets 6, the hydraulic cylinders 1 1 are symmetrically fixed, turning the wings 3 of the blade 2.

The rods 12 of the hydraulic cylinders 11 are pivotally connected to the axis of rotation 4 of the wings 3 of the blade 2, and the housing of the hydraulic cylinder 11 is pivotally connected to the frame 1 by means of the axes 13 (Figs. 1, 2 and 3).

The sliders 7 are designed to provide articulation of the blade 2 with the frame 1 of the hinge and serve for the simultaneous rotation of the wings 3 of the blade 2 when the rods 12 of the hydraulic cylinders 11 move. The connection to the blade 1 is provided by coupling the cylindrical male surfaces of the guides 8 mounted on the rear plane of the blade 2 s the cylindrical male surfaces of the sliders 7 located perpendicular to their rotation axes 13.

The blade 2 in the lower part contains knives 14 made of sheet material with a hard-alloy electrode surfacing to increase their wear resistance (Fig. 4).

The work of the snow blower is as follows.

When organizing the primary passage in snowy fields, in the bulkheads of building bulk materials, the acute-angled arrangement of the wings 3 of dump 2 is used (position I, Fig. 1).

For this, the rods 12 of the hydraulic cylinders 11 extend to the maximum length. The guides move along the sliders 7, the slider 7 rotates on the axis 9, expanding the wings 3 of the blade 2 around the axis 4 until an acute internal angle is reached between them.

When organizing the work of equipment for moving sand or gravel, as well as a snow shaft (up to 300 mm), an expanded horizontal arrangement of the wings 3 of the blade 2 (position II, Fig. 1) is used For this, the rods 12 of the hydraulic cylinders 11 are moved inside its housing to the required value * ⁷

In this case, the guides 8 are moved in the opposite direction relative to the previous position I, the slider rotates towards the axis of rotation 4 of the wings 3 of the blade 2 to the expanded horizontal arrangement of the wings 3 of the blade 2.

Position P provides the possibility of obtaining a larger wing area, with the possibility of reducing the number of passes and a single area of coverage of the working surface.

To organize work on soil / snow pushing, for example, to clear limited areas of snow, or when planning work with soil, for example, digging a trench, use the folded position of the wings 3 of the blade 2 (position III, Fig. 1).

In this case, the guides 8 move along the sliders 7 further to the stop 10.

The sliders 7 rotate as much as possible to the axis of rotation 4 of the wings 3 of the blade 2, turning them at an external obtuse angle.

In position Ш, the volumes of the working material of the movement are pushed out with minimal losses of its volumes, which eliminates the need to return the vehicle for the collection of materials crumbled when pushing.

For all positions of the wings 3 of the blade 2, the load from the working soil is distributed from the knife 14 located on the blade 2 to the guides 8, from the guides 8 to the sliders 7 and then through the axis 9 of rotation of the sliders 7 to the frame 1.

An advantage of the claimed utility model is the ability to change the installation angle of the blade sections in the horizontal plane, due to the drive of their rotation from the sliders, providing articulated connection of the blade with the hitch frame during synchronous rotation of the blade wings from the movement of the hydraulic cylinder rods, which increases the strength and maneuverability of the structure , compact design, and extends the functionality of attachments.

Claims

Utility Model Formula

Attachments to a vehicle containing a three-position blade mounted on the frame, the wings of which are connected to each other by an axis of rotation, and a hydraulic cylinder for turning the wings of the blade, characterized in that on each of the wings of the blade are fixed upper and lower guides in which the sliders are connected with the frame by means of axes, the hydraulic cylinders for turning the wings of the blade are fixed to the frame, and the rods of the hydraulic cylinders are pivotally connected to the axis of rotation of the wings of the blade.