RU2312035C1 - Multipurpose municipal vehicle - Google Patents

Abstract

FIELD: municipal vehicle building.

SUBSTANCE: invention relates to multipurpose small-size machines for cleaning and upkeeping territories of city residential districts. Proposed multipurpose municipal vehicle has driving and driven half-frames interconnected by hinge joint, driver's place with steering wheel arranged in front part of driving half-frame and extended forward relative to front axle, engine and transmission arranged on driving half-frame. Movable part of hinge joint is connected at one side mechanically by steering rods with steering wheel and at their side is coupled with driven half-frame by means of quick-release joint. Moreover, to provide coincidence of direction of rotation of steering wheel and cornering of vehicle, steering rods are arranged in cress-cross manner.

EFFECT: increased capacity of multipurpose small-size vehicle owing to improved maneuverability and reduced time for replacement of working equipment.

2 cl, 1 dwg

Description

The invention relates to the field of municipal engineering, in particular to multifunctional small-sized machines for maintaining public areas in residential urban areas.

A device is known ("Small-sized tractor", patent RU No. 2043213 C1, 10/09/1995) containing an engine, transmission, driver’s workplace. At the back and front of the tractor there are places for hitching interchangeable working equipment.

The disadvantages of the described device include: low maneuverability, poor front visibility, significant loss of time to replace working equipment. These shortcomings ultimately reduce the performance of the machine.

A device is known that is closest in technical essence and the achieved result to the invention and adopted as a prototype ("Chassis of a multifunctional machine for aggregation with removable working equipment for public use", patent RU No. 2169095 C1, 06/20/2001). The device comprises a leading and a driven half frame, interconnected by a hinge, a driver’s workstation with a steering wheel located in front of the leading half frame and advanced forward relative to the front axle, an engine and a transmission located on the leading half frame. At the same time, the mutual arrangement of the half-frames, and hence the control of the course of movement, is controlled by turning cylinders.

The main disadvantage of the described device is the inability to use on machines with a mechanical drive (for example, in small-sized housing and communal equipment), since the latter do not have a hydraulic system. In addition, significant loss of time on the replacement of working equipment reduces the productivity of the machine.

The invention is aimed at increasing the productivity of a multifunctional small-sized machine with a mechanical drive by increasing maneuverability and reducing the time to replace working equipment.

The problem is solved in that a multifunctional utility machine, including the leading and driven semi-frames, interconnected by a hinge, a driver’s workplace with a steering wheel located in front of the leading semi-frame and advanced forward relative to the front axle, engine and transmission, located on the leading semi-frame , the movable part of the hinge, on the one hand, is mechanically connected via the steering rods to the steering wheel, on the other hand is connected to the driven semi-frame by means of a quick coupling . In addition, to match the direction of rotation of the steering wheel and the rotation of the machine steering rods are located "cross to cross".

The difference from the prototype are: the movable part of the hinge is mechanically connected to the steering wheel by steering rods on the one hand and, on the other hand, connected to the driven semi-frame using a quick coupling. In the proposed design, the leading and driven semi-frames, interconnected by a hinge, the movable part of which is mechanically connected to the steering wheel by means of steering rods, increase the maneuverability index, the driver’s workplace with a steering wheel located in front of the leading semi-frame and advanced forward relative to the front axle is increased front visibility, the connection of the movable part of the hinge with the driven half frame using a quick-detachable connection reduces the time for replacing working equipment. The listed essential features in the aggregate fulfill the set technical result - increasing the productivity of a multifunctional utility machine.

The presence of a new complex of essential features allows us to conclude that the claimed device meets the criterion of "novelty."

The analysis of patent and scientific and technical information did not allow to identify sources containing information about the fame of the distinguishing features of the claimed invention, which indicates its compliance with the criterion of "inventive step".

The proposed device is illustrated in the drawing. The drawing shows a multifunctional small-sized utility vehicle, top view.

The device consists of a leading 1 and 2 driven halfrays, interconnected by a hinge 3. On the leading semi-frame 1 there is an engine 4, a transmission 5, a front axle 6 and a driver’s workstation 7 with a steering wheel 8. A working half is installed on the driven semi-frame 2 with a pair of wheels 9 equipment (for example, a hopper for adding walkways). The fixed part 10 of the hinge 3 is rigidly fixed to the rear of the driving frame 1, and the moving part 11 is mechanically connected via the steering rods 12 to the steering wheel 8 on the one hand and, on the other hand, connected to the driven half 2 by means of a quick coupling 13, for example, eccentric clamps.

The device operates as follows. When turning the steering wheel 8, the movable part 11 of the hinge 3 due to the steering rods 12 tends to rotate relative to the axis of rotation. Since the movable part 11 of the hinge 3 by means of a quick-detachable connection 13 is connected with the driven half frame 2 and the wheelset 9, the hinge 3 is shifted relative to the longitudinal axis of the machine, and the course of the latter changes.

Each interchangeable working equipment (a hopper for adding walkways, an irrigation tank, etc.) has its own half frame 2 with a pair of wheels 9 and, using a quick-detachable connection, quickly attaches to the swivel part 11 of the hinge 3, forming a multi-functional small-sized utility machine with the leading half frame 1 .

The result is a technical result - an increase in the productivity of a multifunctional small-sized utility vehicle.

Claims (2)

1. A multifunctional utility machine, including a leading and a driven half frame, interconnected by a hinge, a driver’s workstation located in front of the leading half frame and advanced forward relative to the front axle, an engine and transmission placed on the leading half frame, characterized in that the movable part the hinge, on the one hand, is mechanically connected via the steering rods to the steering wheel, on the other hand it is connected to the driven frame using a quick-connect. 2. The multifunctional small-sized machine according to claim 1, characterized in that the tie rods are located “cross to cross”.