RU202156U1 - TANK WITH KEYSTONE CROSS-SECTION - Google Patents

Abstract

The utility model relates to transport equipment for short-term storage and transportation of fluid materials, in particular, to the production of tanks for installation on the chassis of vehicles of various designs. The tank consists of a tank made with a cross-section of its body in the shape of a trapezoid, with built-in breakwaters and partitions, with hatch covers on the necks on top and flanges of pressure-drain devices and drain valves in its lower part, from a frame with lodges attached to it, on which the base of the tank rests, from belting bands with locking pins and stepladders, with the help of which the tank tank is attached to the frame lugs, and also includes ladders and ladders with handrails for servicing the hatches of the upper structure of the tank, fire protection devices, indicators and plates. with a trapezoidal cross-section, it is characterized by a low center of gravity of the load placed in it due to the fact that the tank body in its central part is made in the form of a trapezoidal body with curved segments of the upper structure and a wider lower part of the tank adjacent to the trapezoid. with top and bottom m curvilinear segments produced by cutting out the tank shells, welding them together into a pipe billet and crimping the pipe billet according to a single digital model with geometric accuracy specified in the technology of body welding, welding of bottoms, breakwaters and partitions. A tank with a trapezoidal tank cross-section can be manufactured in mechanical engineering, easily equipped with pumping units and installed on vehicles of all types with minimal technical and financial costs.

Description

The utility model relates to transport equipment for short-term storage and transportation of fluid materials, in particular, to the production of tanks for installation on the chassis of vehicles of various designs.

The tank consists of a tank made with a cross-section of its body in the shape of a trapezoid, with built-in breakwaters and partitions, with hatch covers on the necks on top and flanges of pressure-drainage devices and drain valves in its lower part, from a frame with lodgments attached to it, on which the base of the tank rests, from belting bands with locking fingers and ladders, with the help of which the tank of the tank is attached to the frame lugs, and also includes ladders and ladders with handrails for servicing the hatches of the upper structure of the tank, fire protection devices, indicators and plates.

A tank with a trapezoidal cross-section is distinguished by a low center of gravity of the load placed in it due to the fact that the tank body in its central part is made in the form of a trapezoidal body with curved segments of the upper structure and the lower part of the tank adjacent to the trapezoid.

Giving the tank a trapezoidal shape with upper and lower curvilinear segments was made by cutting out the tank shells, welding them together into a pipe billet and crimping the pipe billet according to a single digital model with geometric accuracy specified in the technology of body welding, welding of bottoms, wave cutters and partitions.

A tank with a trapezoidal tank cross-section can be manufactured in the machine building industry, easily equipped with pumping units and installed on all types of vehicles with minimal technical and financial costs.

The world level of tanks for the transport of fluid materials is characterized by an increase in the capacity of tanks, a compact arrangement of tanks on the chassis of a vehicle.

It is known from the prior art that the capacity of the tank and the overall dimensions of the transport tank are determined by the cross-sectional shape of the tank of the tank and its stability during movement. Depending on the version, the cross-section of the tank car can have the shape of a circle, an oval or a rectangle - a “suitcase” section (S. Krasovsky. A suitcase, an oval and a circle. Tank trucks for the transportation of light oil products. // Fixed assets. 2013. No. 9. URL: http://www.os1.ru/article/7871-avtotsisterny-dlya-perevozki-svetlyh-nefteproduktov-chemodan-oval-i-kruq. Date of treatment 07/26/2019).

The most perfect and close in technical essence to the claimed model is a rectangular tank in the form of a "suitcase". The operational advantages of such a tank are the increased volume of the tank compared to tanks of other cross-sections, as well as a lower center of gravity of the vehicle with the tank installed on it. The disadvantage of the "suitcase" tank is the complex technology of cutting and shaping the cross-section of the "suitcase" tank (How tank trucks are made at the factory [Electronic document]. Youtube. URL: https://www.youtube.com/watch?v=oduiGZUUuQs. Date of appeal 07/30/2019.), As well as transverse hydraulic shocks of fluid loads to the side of the tank and a sharp shift in the center of gravity during maneuvering, significantly reducing the speed and stability of the vehicle on the roads.

The stability factor is especially important for transport tanks in Russian conditions with a long length of dirt roads and the need for maneuvering in off-road conditions. Various designs of transport tanks are used to achieve stability.

Known tank truck (Inventor's certificate No. BY 265; B65D 88/12; 06/05/2000) for the transport of food, characterized by a special fit of the tank on the chassis of the vehicle, which makes possible a low position of the center of gravity of the vehicle, resulting in increased stability of the tank truck when transporting the product.

A well-known tanker truck with breakwaters (Inventor's certificate No. SU 929500 A1; 65D 88/12; B60P 3/22, B 08.08.1980), in which, when maneuvering on the roads, the liquid is throttled through the holes in the breakwaters, the forces of transverse hydraulic shocks are partially dissipated by the breakwaters and directed not to the side, but on the bottom of the tanker, as a result of which there is no sharp shift in the center of gravity, this ensures the stability of the tanker when changing direction or speed.

The design of the tank is known (Inventor's certificate No. RU 2201882 U1; B65D 88/12, B61D 5/00, B61D 5/06, B60P 3/22; 09/19/2000), which differs from the known placement of the tank tank in tires attached to the frame by means of a lodgment and a support frame, with each bandage being made in the form of half-rings of an equal-strength section of a homogeneous material with the possibility of tightening them together and attaching the tank to the frame through shock absorbers made of rubber sheet between the bandage and the reservoir. When fastening the tank of the tank in the annular bands, the loads on the body from hydraulic shocks are absorbed by the shock absorbers, are damped in the frame lodges and thereby the rapid shift of the center of gravity of the tank is limited.

In PJSC GRAZ (Scania-Leasing received 16 new products from GRAZ. [Electronic resource]. Portal of commercial vehicles and special equipment. URL: https://truck-and-bus.ru/news/industry/25427/. Date of treatment 07/31/2019) a four-section oil tanker semitrailer with a capacity of 37.9 m3 with a shortened tank length has been developed, in which hydraulic shocks and deformations are damped in metal structures by increasing the thickness of the tank walls made of 09G2S steel to 5 mm, the pivot plate - by 12 mm , the front support - by 6 mm, and the tank itself is welded to the frame cradle.

The disadvantages of the known solutions for transport tanks should include the laboriousness of their manufacture, a decrease in the operational characteristics of the stability of a vehicle with a tank when maneuvering on roads and when driving off-road.

The essence of the utility model lies in the design of a transport tank, in which the body of the central part of its tank is designed in the form of a trapezoidal body with curved segments of the upper and lower structure of the tank's tank, the body of the tank is made according to an electronic digital design model, is supported by a larger curved segment in the lower part of the tank on the frame with welded to it cradles, covered with belt straps and attached with the help of pins and stepladders to the cradles, while round-section through holes are made across the cradles, inside of which pressure-suction pipelines are mounted, and platforms are attached at the ends of the cradles and the frame.

The technical result is a tank, schematically shown in Fig. 1. and FIG. 2. The positions in FIG. 1 and FIG. 2 denote: 1 - trapezoidal tank tank; 2, 3 - side walls; 4 - breakwater system; 5, 6 - side wall reinforcement sheets; 7 - supporting plates of the tank bottom; 8 - the bottom of the tank; 9 - curved segment of the upper structure of the reservoir; 10 - curved segment of the lower part of the tank; 11, 12 - neck; 13 - flange of pipeline fittings; 14 - front bottom; 15 - rear bottom.

In a tank 1 with a trapezoidal cross-section, the inclination of the side walls 2 and 3 is intended to ensure the dissipation of transverse hydraulic shocks on the breakwaters 4 and in the walls reinforced with the side plates 5 and 6, to direct them to the bottom of the tank 8, reinforced by the support plates 7, and thereby stabilize the position center of gravity of the tank with cargo.

The curved segments of the upper structure 9 and the lower part 10 of the tank are convex, serve to increase the capacity of the tank, as well as to attach to the upper segment of the necks 11 and 12, to the lower segment - flanges of pipeline fittings 13, as well as the front 14 and rear 15 bottoms to the tank body ...

The reservoir 1 is installed on the frame 16 in the cradles 17 and 18 welded to the frame. The cradles are designed in the same digital environment with the bottom 8 and the base plates 7, made of solid material with a minimum amount of welding, through holes 19, 20 are made across the cradles of circular section, inside which are built-in pressure and suction pipelines.

The reservoir 1 of the tank is surrounded by one-piece girdling bands 21, the ends of which are attached by ladders 22 to the cradle 17 and 18 on the sides with the help of pins-locks. On the frame and cradles, platforms for technological boxes 23 are welded and canisters 24 are mounted for laying the pressure-suction hoses in the transport position. The boxes are equipped with ecological boxes 25 and 26 for collecting drip leaks from the sleeves, preventing the transported materials from entering the environment.

The technical result of reducing the complexity of the structure in manufacturing was achieved by designing the structure of the tank in a single digital environment with technology, where production processes are logically interconnected by electronic models of design documentation according to the following scheme: a) design documentation of a digital model is created for a tank of the required length and capacity, with the minimum low position of the center of gravity of the tank due to the cross-section of its body in the form of a trapezoid; b) digital models are transferred to technological processes, according to which the cutting and deformation of materials for the tank, as well as bottoms, breakwaters, partitions, openings for necks and flanges are performed; c) shells are formed on the rollers, which are deformed and welded into a trapezoidal tank; d) the tank is mounted on the frame as shown in Fig. 3 and FIG. 4. The positions in FIG. 3 and FIG. 4 denote: 1 - reservoir; 16 - tank frame; 17, 18 - lodgements under the bottom of the tank; 19, 20 - through holes in the cradle; 21 - encircling belts; 22 - stepladder; 23 - technological box; 24 - case for laying the pressure-suction hoses during transport; 25, 26 - ecological boxes.

The prototype of the utility model was manufactured and tested by the applicant enterprise on an ATZ-11.5-KAMAZ-43118 refueling vehicle, a general view of which is shown in Fig. 5. A tank designed with a trapezoidal tank cross-section can be digitally designed, manufactured in production, equipped with pumping units and installed on all types of vehicles with minimal technical and financial costs.

Digital modeling of mechanical engineering production is an effective tool for setting parameters and manufacturing a tank with an increased tank volume and a low center of gravity of the cargo placed in it.

FIG. 6. shows two tanks of the same length, designed and manufactured by the applicant company according to one digital model, but with different transverse profiles: a round tank with a capacity of 10 cubic meters. meters, while the capacity of a tank with a trapezoidal tank cross-section increased to 11.5 cubic meters. meters with a lower, even visually perceptible, location of the center of gravity of the tank.

Claims (1)

A tank with a tank cross-section in the shape of a trapezoid, containing a tank body with end bottoms welded to it, internal breakwaters, technological necks with hatches, a ladder and ladders with handrails for servicing the tank necks, with flanges and valves of the pressure-discharge system of the tank, characterized by that the body of the central part of the tank tank is designed in the form of a trapezoidal body with curved segments of the upper structure of the tank and the lower part of the tank adjacent to the trapezoid, the body is made according to an electronic digital design model, rests with a larger curved segment in the lower part of the tank on a frame with welded lodges , covered with belt straps and attached with the help of locking fingers and step-ladders to the cradles, while cross-section through holes are made across the cradles, inside which pressure-suction pipelines are mounted, and platforms are attached at the ends of the cradles and the frame and.

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