RU67520U1 - STABILIZING DEVICE FOR DUMPING VEHICLE - Google Patents

Abstract

The stabilizing device of the tipper vehicle is intended for installation on tipper vehicles, including cars, trailers and semi-trailers having a tipper platform (1) of large length and carrying capacity, in order to increase safety during unloading or in the process of coupling the tractor with the semi-trailer. The stabilizing device of the tipper vehicle contains supports (2) installed in pairs in the middle and rear of the frame. The supports have sliding elements with a drive in the form of hydraulic cylinders (3), (4), (5), (6) and are mounted on the frame by means of brackets (7) and a beam (rolling beam) (8). Hydraulic cylinders (3), (4), (5) and (6) are connected by means of a working hydraulic line (9) integrated in parallel with the existing hydraulic system through the directional valves (10) and (11), the safety valve (12) and the hydraulic accumulator (13) with pump (14). Hydraulic cylinders (2) and (3), (5) and (6) have hydraulic locks (15). On the working hydraulic line (9) between the control valves (10) and (11) a pressure sensor (16) is installed. On the tipping axis (17) of the platform there is a roll sensor (18) connected to the hydrodistributor electromagnets E1 and E2 (11). The increase in the response speed of the hydraulic cylinders (3), (4) and (5), (6) is provided by the hydraulic accumulator (13). The sliding elements of the supports (2) have articulated bearing platforms (19) at their ends for interaction with the soil surface of the discharge platform. 5 ill.

Description

The utility model relates to transport engineering, namely to dump vehicles, including cars, trailers and semi-trailers having a dumping platform of large length and carrying capacity.

The closest set of essential features is the roll control mechanism of the tipper vehicle, consisting of hydraulic cylinders fixed on both sides of the frame, connected by means of a working hydraulic line integrated in parallel into the existing hydraulic system through valves, a safety valve and a hydraulic accumulator with a pump, a pressure sensor and mounted on the platform the roll sensor, while the hydraulic cylinders have hydraulic locks and are installed with the possibility of exposure to their own kami on the bridge beam through the stops fixed on it (certificate for utility model No. 28851, IPC 7 В60Р 1/16, publ. 2003.04.20).

This device allows for unloading on an uneven site to exclude springs from the dynamic system and level the axle of the platform tipping almost to a horizontal position; it has high rates of controllability of the vehicle’s tipper platform and its safety during unloading, but when used on long platforms with high carrying capacity, as well as tipper semitrailers having a hinge assembly in the form of a pivot assembly, it is not reliable enough. In addition, the fact that the hydraulic cylinder rods are supported by a bridge beam predetermines the negative effect of vehicle tire tires on the stiffness of the supports.

The proposed utility model solves the problem of increasing indicators on the manageability of the platform of the dump truck

means having large dimensions in order to increase its safety during unloading or in the process of coupling the tractor with the semitrailer.

To achieve the specified technical result in a known stabilizing device of a tipper vehicle containing supports having retractable elements mounted with the possibility of acting on the supporting surface and provided with a drive in the form of hydraulic cylinders with hydraulic locks, connected by means of a working hydraulic line integrated in parallel with the existing hydraulic system through hydraulic valves, safety valve and accumulator with pump, pressure sensor and roll sensor, supports installed They are pairwise in the middle and rear of the vehicle frame, and their retractable elements have articulated support platforms at their ends for interaction with the dirt surface.

Placement of supports in pairs in the middle and rear of the vehicle frame with the possibility of the interaction of the articulated bearing platforms with the ground surface allows to increase the platform's handling and safety during unloading by providing additional supporting zones, as well as increasing the stiffness of the supports.

The implementation at the ends of the sliding elements of the hinged support platforms also allows you to improve safety performance during unloading by eliminating the influence of lateral forces on the hydraulic cylinders of the supports.

The applicant is not aware of stabilizing devices with the indicated combination of essential features and the claimed combination of essential features does not follow explicitly from the current state of the art, which confirms the conformity of the claimed technical solution to the “novelty” condition.

The utility model is illustrated by drawings, which show:

Figure 1 - dump truck with installed stabilizing device, side view;

Figure 2 - view a in figure 1;

Figure 3 is a section bB in figure 1;

Figure 4 - dump truck with installed stabilizing device, in working condition;

5 is a hydraulic diagram of the stabilizing device of a tipper vehicle.

To ensure safety and improve the process of unloading the tipper platform 1, especially on sites that create an increased roll of the car (trailer, semi-trailer) at the time of unloading, the tipper vehicle is equipped with a stabilizing device (Fig. 1). The stabilizing device of the tipper vehicle contains supports 2 mounted in pairs in the middle and rear of the frame. The supports have sliding elements with a drive in the form of hydraulic cylinders 3, 4, 5, 6 and are fixed to the frame by means of brackets 7 and a beam (rolling bar) 8. Hydraulic cylinders 3, 4, 5 and 6 are connected by means of a working hydraulic line integrated in parallel with the existing hydraulic system 9 through the control valves 10 and 11, the safety valve 12 and the hydraulic accumulator 13 with the pump 14. The hydraulic cylinders 2 and 3, 5 and 6 have hydraulic locks 15.

On the working hydraulic line 9 between the control valves 10 and 11, a pressure sensor 16 is installed.

On the tipping axis 17 of the platform there is a roll sensor 18 connected with the electromagnets E1 and E2 of the control valve 11.

The increase in the response speed of the hydraulic cylinders 3, 4 and 5, 6 is provided by the hydraulic accumulator 13.

The sliding elements of the supports 2 have at their ends articulated bearing pads 19 for interacting with the soil surface of the discharge platform.

To unload the platform 1, the working fluid under pressure created by the pump, driven by the car engine, is fed into the lower cavity of the hydraulic cylinder of the platform lifting and lowering mechanism. The hydraulic cylinder rods extend, platform 1 tilts to the maximum angle, after which the platform lift restriction valve stops the flow of working fluid into the hydraulic cylinder. To lower the platform 1, the driver from the cab by means of an electro-pneumatic drive switches the control valve and the working fluid from the hydraulic cylinder is drained into the oil tank.

If it is necessary to unload the tipper platform at a site with a roll level above the permissible norm, it is necessary to level the tipping axis of the platform from 3 ° to 0 °. To do this, when the power take-off is turned on and the pump 14 is operating to drain the hydraulic distributor 10 solenoid E3, the “stop” mode is activated, as a result of which oil begins to flow into the upper (rodless) cavity of the hydraulic cylinders 3, 4, 5 and 6. Retractable elements with articulated support platforms 19 rely on the dirt surface of the discharge site. In the hydraulic line 9, the pressure rises and the pressure sensor 16 is activated, which through the roll sensor 18 switches on the “alignment” mode (Fig. 5), while the electromagnets E1 or E2 of the control valve 11 are switched on depending on the direction of the slope. The oil enters the rodless cavity of the hydraulic cylinders 2, 7 (when leaning to the left) or 3, 8 (when leaning to the right). When the platform 1 reaches a horizontal position, the roll sensor 18 turns off the electromagnets E3 and E1 (when leaning to the left) or the electromagnets E3 and E2 (when leaning to the right) of the control valves 10 and 11. After that, the platform 1 can be lifted by means of a power hydraulic cylinder.

In the process of lifting the platform in the event of an imbalance of the system - increasing the angle or direction of the roll - the roll sensor 18 switches the electromagnets E1 and E2 of the control valve 11 to turn on the mode

"Alignment". In the case of a sharp loss of cargo from the platform as a result of the action of the elastic suspension elements, the sliding elements of the supports 2 are detached from the discharge platform as a result of the pressure drop in the hydraulic system and the inclusion of pressure sensors 16 and 18, respectively, in the work. In this case, the “stop” mode is first turned on, and then the “alignment” mode. In the "emphasis" with insufficient performance of the pump 14 is automatically recharged by a hydraulic accumulator 13.

After dumping the cargo from the platform and lowering the platform, the electromagnet E4 of the hydraulic distributor 10 is turned on, the sliding elements of the supports 2 rise, the roll control mechanism is brought into transport position. The electromagnet E4 of the hydraulic control valve 10 and the power take-off, including the pump 14, are turned off.

On the semi-trailers, the retractable bearings 2, installed in the middle part of the frame, play the role of not only the supporting device in the process of coupling - uncoupling with the tractor, but also are an additional stabilizing device during unloading.

The inventive device allows to increase indicators of controllability of the platform of the dump truck type of semitrailer and its safety during unloading.

The stabilizing device of the tipper vehicle can be performed on standard equipment using modern materials and technologies.

Claims (1)

A stabilizing device of a tipper vehicle containing supports that have sliding elements with a drive in the form of hydraulic cylinders, connected via a working hydraulic line integrated in parallel with the existing hydraulic system through hydraulic valves, a safety valve and a hydraulic accumulator with a pump, a pressure sensor and a roll sensor, while the hydraulic cylinders have hydraulic locks, and the retractable elements are installed with the possibility of impact on the supporting surface, characterized in that the supports are installed in pairs the middle and rear of the vehicle frame, and their sliding elements are hinged at the ends of the supporting platform for interaction with the ground surface.