RU52389U1 - Tank truck - Google Patents

Abstract

The utility model provides for the transportation and short-term storage of water and food liquids. The objective of the utility model was to create a tanker with improved performance, simplifying the installation of filling and discharge pipelines. The tanker includes a chassis 1, a container 2 with sections 4, in the bottom of which there is a drain hole 6. The latter is equipped with a locking device 7 in the form of a spring-loaded valve 8, interacting with the control mechanism of the handle 12. The pump unit is equipped with a hydraulic actuator powered from the car engine. Pipelines 13 filling-draining placed outside the tank 2 and connected at one end to the pumping unit, and the other to the locking device 7 (Fig.1, 2, 3).

Description

The utility model relates to mechanical engineering, namely, devices for transportation and short-term storage of water and food liquids.

A known tank truck containing a chassis on which a container with several compartments is installed, each of which has a filling and drain device, and the compartments are made of shells, coaxially placed one in the other (1).

The disadvantage is the complexity of the design, the unreliability of the shutoff valves of the drain pipes.

Closest to the claimed is a tank truck, including a chassis and a tank mounted on it with compartments formed by transverse partitions, each of which has a drain and bulk device. The latter are made in the form of pipe lines located inside the tank compartments and connected to a pump installed either on the pipe lines of the pipe lines or on the chassis frame, and connected to the vehicle power take-off via a driveshaft, with the output ends of the pipe lines having shutoff valves fixed to them displayed in the control unit located in the rear end of the tank, and each compartment is equipped with a safety drain device in the form of a bottom valve (D).

However, the layout of the additional propeller shaft for selection

power to the pump is complex, while a rigid kinematic scheme of the pump drive is formed and the performance of the tanker is deteriorating.

To provide the required pump performance, an overdrive of its speed may be required.

In addition, placing drainage devices inside the tank complicates installation work when installed on a vehicle and creates inconvenience to service.

The objective of the utility model was to create a design with the placement of filling and discharge pipelines in an accessible and convenient place for servicing, simplifying their installation and improving the operational characteristics of the installation.

The technical result consists in the fact that the introduction of a hydraulic drive into the layout of the pumping unit provides stepless stepless adjustment of the pump performance, and the placement of the filling-draining pipelines and the shut-off device control mechanism in an accessible and convenient place for maintenance simplifies their installation and monitoring of their working condition.

The technical result is achieved by the fact that in a tank truck including a chassis, a container with sections and a drain hole in their bottom, filling and draining pipelines, a pump unit driven by a car engine, the pump unit is equipped with a hydraulic actuator associated with the car engine. Drain hole of each section

containers equipped with a locking device in the form of a spring-loaded valve and a control mechanism that interacts with it. The filling and draining pipelines are located outside the tanker tank and are connected at one end to the pumping unit and the other to the locking device of the drain hole of each section.

Signs that distinguish the proposed design of the tanker from the closest to it according to the prototype characterize the presence of a hydraulic actuator in the pump unit, the placement of pipelines outside the tanker’s tank and the supply of the drain hole of each section with a locking device with a control mechanism.

The hydraulic pumping unit allows you to smoothly adjust the pump performance when filling sections or pumping liquid from sections of the tank truck.

Placing pipelines outside the tanker tank simplifies their installation and maintenance.

Locking devices with a control mechanism reliably block the drain holes.

The utility model improves the performance of a tanker truck.

The analysis of scientific, technical and patent literature showed that the utility model meets the criterion of "novelty."

The drawing shows:

figure 1 - General view of the tanker;

figure 2 is a local increase in figure 1, in section;

figure 3 - local increase in figure 1, in a section.

The tanker includes a chassis 1 (Fig. 1), on which a container 2 is installed, divided by transverse partitions 3 (Fig. 2) into sealed sections 4. Each section 4 on top has a filler neck 5 (Fig. 1), and a drain in the bottom hole 6 (figure 2). At the bottom of the drain hole 6, a locking device 7 is installed in the form of a spring-loaded valve 8 interacting with a control mechanism consisting of a lever 9, a rod 10, a rod 11 and a handle 12 (Fig. 3).

In addition, the drain holes 6 (figure 2) of sections 4 by pipelines 13 fill-drain connected to a pumping unit equipped with a hydraulic actuator and including a self-priming centrifugal pump 14 (figure 1) with a hydraulic motor and driven by an automobile engine through a volumetric hydraulic transmission. The hydraulic tank 15 is located on the left side of the tank truck and is connected to the gear hydraulic pump 16 mounted on the power take-off of the chassis 1 of the car.

The pressure line 17 from the hydraulic pump 16 is connected to the hydraulic motor of the centrifugal pump 14.

On the neck 5 a top level sensor is installed (not shown in the drawing). Associated with it is a hydraulic valve installed in the hydraulic tank 15 (not shown in the drawing).

The design of the tank truck provides for the placement of pipelines 13 (figure 2) filling-draining outside the tank 2 (figure 1).

The spring-loaded valve 8 (figure 2) is equipped with a spring 18.

A centrifugal pump 14 (FIG. 1) with a hydraulic motor is located in compartment 19. A handle 12 (FIG. 3) of the control mechanism of the locking device 7 (FIG. 2) is displayed in the compartment 19.

Tanker works as follows.

The fluid is pumped in section 4 of the container 2 through the filler neck 5 or when the self-priming centrifugal pump 14 of the pump unit is switched on from the vehicle’s engine by means of a volumetric hydraulic transmission. The oil from the hydraulic tank 15 enters the gear hydraulic pump 16 mounted on the power take-off of the chassis 1 of the car. From the hydraulic pump 16 through the pressure pipe 17, a centrifugal pump 14 is connected to the hydraulic motor, while the centrifugal pump 14 rotates and pumps liquid in the section 4 of the tank 2 tanker through the filling and draining pipelines 13. To automatically stop the hydraulic transmission and the centrifugal pump 14 with the hydraulic motor when filling the tank from the upper level sensor located on the filler neck 5, a normally open type hydraulic valve installed in the hydraulic tank 15 is used.

When the upper level sensor is triggered, the supply voltage to the hydro valve electromagnet coil stops, which opens and directs the oil flow from the hydraulic pump 16 to the hydraulic tank 15, bypassing the centrifugal pump 14. The motor and the centrifugal pump 14 mounted on its shaft immediately

stop, filling sections 4 of the tank stops.

The tank is drained by the same centrifugal pump 14 with a hydraulic motor through a pipe 13 connected to the drain holes 6 of sections 4 of the tank 2. At the bottom of each drain hole 6, a locking device 7 is installed, the spring-loaded valve 8 of which reliably closes the drain hole 6, and it is controlled the handle 12 and the rod 11 through the lever 9, which moves the rod 10 with a spring-loaded valve 8 mounted on it.

The locking device is controlled manually.

The handle 12 can be installed in two positions:

- position I - the spring-loaded valve 8 is closed (the handle 12 is pushed forward as far as the stop, along the tank, valve 8 tightly closed the drain hole 6 by means of spring 18);

- position II - the spring-loaded valve 8 is open (the handle 12 is extended to itself and fixed, while the stem 10 together with the valve 8 is raised, the drain hole 6 is open).

Through the filler necks of the 5 sections of the container, it is possible not only to fill the sections, but also to disinfect and inspect the inner surface of the sections.

The proposed utility model allows steplessly, smoothly adjusting the pump performance and placing pipelines in an accessible and convenient place for maintenance and simplifying their installation. The proposed utility model improves operational

tank truck characteristic.

Claims (1)

A tank truck including a car chassis, a tank with sections and a drain hole in their bottom, filling and drain pipelines, a pump unit driven by a car engine, characterized in that the pump unit is equipped with a hydraulic actuator powered from the car engine, and the aforementioned drain hole of each section containers equipped with a locking device made in the form of a spring-loaded valve and a control mechanism interacting with it, while the above-mentioned filling-draining pipelines are placed sleep uzhi tanker vessel and are connected at one end to the pump unit, and the other - with a locking device of each container section.