Tanker, tank and method of forming a tank

Abstract

This invention provides a tanker truck, a tank body, and a method for forming the tank body. The tank body includes a cylindrical body and end caps located at both ends of the cylindrical body along its axial direction. The end caps have an elliptical cross-section. The cylindrical body includes an upper cylindrical body and two lower cones. The upper cylindrical body has a semi-elliptical cross-section, and its lateral diameter is larger than its vertical diameter. The two lower cones are located below the upper cylindrical body and are joined together along the axial direction of the cylindrical body. The lower cones are flattened cones, with their diameter gradually increasing from bottom to top, and the lateral width of the lower cones at each horizontal cross-section is no greater than their longitudinal width. The semi-elliptical upper cylindrical body widens the width of the upper part of the entire tank body, thereby increasing the overall volume of the tank body, i.e., increasing the effective loading capacity of the tank body, thus improving the single-trip transport capacity of the tanker truck. At the same time, the lower part of the tank body adopts the form of lower cones, increasing the inclination of the lower part of the tank body, allowing materials to smoothly slide to the bottom, which is more conducive to unloading.

Description

Technical Field

[0001] This invention relates to the field of special vehicle technology, and in particular to a tank truck and its tank body. Background Technology

[0002] With the development of the road transport industry, the demand for single-trip transport volume is also increasing. However, the state has imposed corresponding restrictions on the overall length, width, and height of powder tank trucks. Existing tanks, while meeting the restrictions on overall length, width, and height, can hardly have their volume increased further. Therefore, how to increase the tank volume of powder tank trucks while complying with existing national regulations has become an urgent issue. Summary of the Invention

[0003] The purpose of this invention is to provide a tank with a large volume, a method for forming the tank, and a tank truck having the tank, so as to solve the problems in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention provides a tank body, including a cylindrical body and end caps arranged at both axial ends of the cylindrical body;

[0005] The cross-section of the end cap is elliptical;

[0006] The cylindrical body includes:

[0007] An upper cylinder has a semi-elliptical cross-section, and the diameter of the upper cylinder in the left-right direction is larger than its diameter in the up-down direction.

[0008] Both lower cones are located below the upper cylinder; and the two lower cones are joined together along the axial direction of the cylinder.

[0009] The lower cone is flattened and tapered, with its diameter gradually increasing from bottom to top. The width of the lower cone in the left-right direction at each horizontal section is not greater than its width in the front-back direction.

[0010] In one embodiment, the tank body is provided with reinforcing ribs.

[0011] In one embodiment, the lower cone includes a left splicing surface and a right splicing surface symmetrically arranged on the left and right sides, respectively, and a front splicing surface and a rear splicing surface symmetrically arranged on the front and rear sides, respectively, wherein the curvature of the front splicing surface and the rear splicing surface is greater than the curvature of the left splicing surface and the right splicing surface.

[0012] In one embodiment, the cylinder is divided into two sections at the dividing point between the two lower cones. Each section is divided into two half sections by a vertical dividing plane passing through the central axis of the lower cone. The outer contour of the vertical cross section of each half section gradually transitions from a teardrop shape to an ellipse from the end connected to the other half section to the other end. The outer contour of the horizontal cross section of each lower cone gradually transitions from a rectangle to an ellipse or a circle from the position where it intersects with the upper cylinder.

[0013] In one embodiment, the vertical cross-sectional outer contour of each of the semi-cylindrical sections changes from one end where it intersects with another semi-cylindrical section to the other end in the following trend: the upper elliptical contour remains unchanged, while the lower conical contour gradually shortens and rounds from a long, pointed shape until it transitions to an elliptical shape at the other end.

[0014] In one embodiment, the horizontal cross-sectional outer contour of each of the lower cones changes downward from its junction with the upper cylinder in the following trend: it first bends at the four corners of the rectangle and then bends further around the perimeter, gradually transitioning from a straight contour to a curved ellipse until it is completely transitioned to an elliptical or circular cross-section.

[0015] In one embodiment, the tank body further includes a transition member; the transition member connects the lower part of the end cap to the adjacent lower cone, and the transition member gradually slopes downward from the end connected to the end cap to the end connected to the lower cone.

[0016] In one embodiment, the bottom of the lower cone located at the front extends downward beyond the bottom of the lower cone located at the rear.

[0017] In one embodiment, a reinforcing ring is provided around the outer periphery of the tank body, and the reinforcing ring is disposed between the two lower cones.

[0018] In one embodiment, the reinforcing ring is a closed annular ring, which includes an adhesive portion and a transition portion.

[0019] In one embodiment, the bottom of the lower cone is provided with an elliptical opening, and a conical fluidizing cone is provided at the opening. The upper cross section of the fluidizing cone is elliptical or circular, the lower cross section is circular, and a circular discharge hole is provided at the center of the bottom of the fluidizing cone.

[0020] The present invention also provides a method for forming the tank body as described above, comprising the following steps:

[0021] A flat first blanking plate is provided, the first blanking plate is trapezoidal, and the trapezoidal first blanking plate is rolled into shape to obtain a semi-finished cylindrical section with an open bottom.

[0022] A flat second blanking plate is provided, which is bent and welded to the opening of the semi-finished cylindrical section to obtain a semi-cylindrical section, so that the upper part of the semi-cylindrical section is semi-elliptical and the lower part is semi-conical.

[0023] Two semi-cylinder sections are welded together in a manner that aligns them along the axis to form a single cylinder section;

[0024] Two oval-shaped heads are formed separately;

[0025] Two cylindrical sections are assembled together to form a cylindrical body, and two end caps are welded to both ends of the cylindrical body to form a tank for loading materials.

[0026] In one embodiment, the first blanking plate includes regular segments and two irregular segments integrally disposed at both ends of the regular segments; the regular segments are rectangular, and the two irregular segments are symmetrically distributed along the central axis of the regular segments; the regular segments include two parallel first straight edges and second straight edges; the outer contour of the irregular segments includes a first edge, a second edge, and a third edge connected in sequence; the first edge is a straight edge and extends integrally from the first straight edge of the regular segment; the second edge is arc-shaped, and the concave surface of the second edge faces outward from the first blanking plate; the convex surfaces of the second edges of the two irregular segments are arranged opposite each other; the third edge is arc-shaped, and its convex surface faces the first edge; one end of the third edge is connected to the second edge, and the other end is connected to the second straight edge of the regular segment;

[0027] When the first blanking plate is formed into the semi-finished cylindrical section, the third sides of the two irregularly segmented sections are spaced apart and opposite each other, and the opening is formed between the two third sides.

[0028] In one embodiment, a circular or semi-circular hole is made on the first blanking plate before the semi-finished cylindrical section is rolled.

[0029] In one embodiment, the outer contour of the second blanking plate includes a fifth side, a sixth side, a seventh side, and an eighth side connected in sequence. The fifth side, the sixth side, the seventh side, and the eighth side are all arc-shaped. The convex surfaces of the fifth side and the seventh side face each other. The line connecting the midpoints of the fifth side and the seventh side forms the axis of symmetry of the second blanking plate. The sixth side and the eighth side are symmetrically distributed about the axis of symmetry. The concave surfaces of the sixth side and the eighth side face each other. The curvature of the fifth side is less than the curvature of the seventh side.

[0030] The sixth and eighth sides of the second blanking plate after bending and forming are respectively welded to the two third sides of the first blanking plate.

[0031] In one embodiment, the semi-finished cylindrical section and the second feeding plate are bent and positioned at the opening of the semi-finished cylindrical section.

[0032] The present invention also provides a method for forming the tank body as described above, comprising the following steps:

[0033] Multiple blanking plates are pressed into arc-shaped splicing plates and then spliced ​​together to form the lower cone, so that the lower cone includes a left splicing plate and a right splicing plate located on the left and right sides, and a front splicing plate and a rear splicing plate located on the front and rear sides.

[0034] The upper cylinder has a semi-elliptical cross-section.

[0035] Two oval-shaped heads are formed separately;

[0036] The two lower cones are welded to the upper cylinder to form a cylinder, the two lower cones are spliced ​​along the axial direction, and the lower cones are located below the upper cylinder;

[0037] The two end caps are welded to both ends of the cylinder to form the tank body.

[0038] In one embodiment, the boundary line between any one of the front splicing plate and the rear splicing plate and any one of the left splicing plate and the right splicing plate is located at the point where the curvature of the two plates changes abruptly, and the curvature of the front splicing plate and the rear splicing plate is greater than the curvature of the left splicing plate and the right splicing plate.

[0039] In one embodiment, the front splicing plate is formed by rolling or stamping a single sheet into a single integrated structure.

[0040] The rear splicing plate is formed by rolling or stamping a single sheet into a structure that is integrally formed from front and back.

[0041] The left splicing plate is made of a single sheet rolled or stamped into a structure that is integrally formed from front and back.

[0042] The right splicing panels are all made from a single sheet rolled or stamped into a single integrated structure.

[0043] In one embodiment, either the left splicing plate or the right splicing plate is obtained by rolling or stamping two symmetrical single plates respectively, and then arranging them in the front and back directions and splicing them together.

[0044] Either the front splicing plate or the rear splicing plate is obtained by pressing two symmetrical single plates separately, arranging them in the left-right direction, and splicing them together.

[0045] In one embodiment, the upper cylinder is divided into two upper half-cylinders at the junction of the two lower cones;

[0046] The forming method of the two upper cylinders includes: cutting out two plates and rolling the two plates into shape to obtain an upper cylinder with a semi-elliptical cross-section;

[0047] The two lower cones are welded to the two upper cylinders respectively to obtain cylinder sections, and the two cylinder sections are then welded together to obtain the cylinder body.

[0048] In one embodiment, the upper cylinder is formed by rolling a single sheet of paper into a single integrated structure.

[0049] The two lower cones are welded to the upper cylinder to form the cylinder.

[0050] The present invention also provides a tanker truck, including a frame and a tank disposed on the frame, wherein the tank is the tank as described above.

[0051] In one embodiment, the frame includes two longitudinally arranged beams, which are recessed to form a concave portion;

[0052] The bottom of the lower cone located in front extends downward beyond the bottom of the lower cone located behind, and the bottom of the lower cone located in front is located on the recess.

[0053] As can be seen from the above technical solution, the advantages and positive effects of the present invention are as follows:

[0054] The tank body of this invention increases the overall volume of the tank by combining a semi-elliptical upper cylinder with two flattened conical lower cones, thereby increasing the effective loading capacity and the single-trip transport capacity of the tanker truck. Simultaneously, compared to traditional tank bodies, the flattened conical lower cones increase the inclination of the lower part of the tank, allowing materials to smoothly slide to the bottom and facilitating unloading.

[0055] In the can forming method of this invention, two cylindrical sections are first formed separately, and then the two cylindrical sections are welded together. Specifically, during the cylindrical section forming process, the section is creatively divided into two parts according to the axial symmetry plane of the cone, so that each part is formed into two half-cylinder sections. These two half-cylinder sections are then butt-welded together to form a single cylindrical section. This greatly simplifies the forming difficulty of individual cylindrical sections, facilitates mechanized and automated welding, and improves the production efficiency of the can. Furthermore, when the two cylindrical sections are laterally combined, a longitudinal circumferential weld is used, effectively improving the welding quality of the product and thus enhancing the overall quality of the product.

[0056] Furthermore, this invention optimizes the molding process for each half-cylinder section, allowing the half-cylinder section to be formed and welded separately from two blanking plates, which greatly improves production efficiency, facilitates large-scale mechanized production, reduces labor intensity and safety hazards for workers, and also reduces labor costs. Attached Figure Description

[0057] Figure 1 This is a schematic diagram of one embodiment of the tanker truck in this invention.

[0058] Figure 2 This is a front view schematic diagram of the tanker truck in this invention.

[0059] Figure 3 This is a top view of the tanker truck in this invention.

[0060] Figure 4 This is a rear view diagram of the tanker truck in this invention.

[0061] Figure 5 A schematic diagram of the vehicle frame structure in this invention.

[0062] Figure 6 This is a front view schematic diagram of the vehicle frame in this invention.

[0063] Figure 7 This is a schematic diagram of the tank structure in this invention.

[0064] Figure 8 This is a front view schematic diagram of the tank body in this invention.

[0065] Figure 9 This is a top view of the tank in this invention.

[0066] Figure 10 This is a bottom view of the tank in this invention.

[0067] Figure 11 This is a rear view schematic diagram of the tank in this invention.

[0068] Figure 12 This is a front view schematic diagram of the tank body in this invention.

[0069] Figure 13 yes Figure 8 A cross-sectional view of the middle tank along the LL direction.

[0070] Figure 14 yes Figure 8 A schematic diagram of the cross-sectional profile of the middle cylinder along the LL direction.

[0071] Figure 15 Figure 8 A schematic diagram of the cross-sectional profile of the middle cylinder along the PP direction.

[0072] Figure 16 yes Figure 8 A schematic diagram of the cross-sectional profile of the middle cylinder along the RR direction.

[0073] Figure 17 yes Figure 8 A schematic diagram of the cross-sectional profile of the middle cylinder along the NN direction.

[0074] Figure 18 yes Figure 8 A schematic diagram of the cross-sectional profile of the middle cylinder along the MM direction.

[0075] Figure 19 yes Figure 12 A schematic diagram of the cross-sectional profile of the lower cone along the JJ direction.

[0076] Figure 20 yes Figure 12 A schematic diagram of the cross-sectional profile of the lower cone along the HH direction.

[0077] Figure 21 yes Figure 12 A schematic diagram of the cross-sectional profile of the lower cone along the GG direction.

[0078] Figure 22 yes Figure 12 A schematic diagram of the cross-sectional profile of the lower cone along the FF direction.

[0079] Figure 23 yes Figure 12 A schematic diagram of the cross-sectional profile of the lower cone along the EE direction.

[0080] Figure 24 This is a schematic diagram of the tank's front view in this invention.

[0081] Figure 25 This is a schematic diagram of the tank structure viewed from below in this invention.

[0082] Figure 26 This is a schematic diagram of the structure of the first feeding plate in this invention.

[0083] Figure 27 This is a schematic diagram of the structure of the second feeding plate in this invention.

[0084] Figure 28 This is an exploded schematic diagram of the half-cylinder section in this invention.

[0085] Figure 29 This is a schematic diagram of the structure of the semi-cylindrical section in one direction of the present invention.

[0086] Figure 30 This is a schematic diagram of the structure of the semi-cylindrical section in another direction in this invention.

[0087] Figure 31 This is a schematic diagram of one embodiment of the lower cone in this invention.

[0088] Figure 32 This is a schematic diagram of another embodiment of the lower cone in this invention.

[0089] Figure 33This is a schematic diagram of the structure of the upper cylinder and the two lower cones before they are connected in this invention.

[0090] Figure 34 This is a schematic diagram of the upper cylinder and lower cone in this invention.

[0091] Figure 35 This is a schematic diagram of the cylindrical section in this invention.

[0092] Figure 36 This is a schematic diagram of the cylindrical section in another direction in this invention.

[0093] The reference numerals in the attached drawings are explained as follows: 1. Tank truck; 11. Chassis; 111. Recess; 12. Tank body; 121. Upper cylinder; 1211. Upper half cylinder; 122. Lower cone; 1221. Left splicing surface; 1222. Right splicing surface; 1223. Front splicing surface; 1224. Rear splicing surface; 1225. Left splicing plate; 1226. Right splicing plate; 1227. Front splicing plate; 1228. Rear splicing plate; 123. End cap; 124. Reinforcing rib; 125. Fluidizing cone;

[0094] 2. First blanking plate; 21. Regular segmentation; 211. First straight edge; 212. Second straight edge; 22. Irregular segmentation; 221. First edge; 222. Second edge; 223. Third edge;

[0095] 3. Semi-finished cylinder section; 31. Opening;

[0096] 4. Second blanking plate; 45. Fifth side; 46. Sixth side; 47. Seventh side; 48. Eighth side;

[0097] 5. Half-cylinder section;

[0098] 6. Tube section. Detailed Implementation

[0099] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0100] To further illustrate the principles and structure of the present invention, preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0101] This invention provides a tanker truck for transporting powdery materials, such as chemical powders and food powders.

[0102] Figure 1 A schematic diagram of the tanker truck structure in this embodiment is shown. Figure 2 The front view of the tanker truck is shown. Figure 3 A top view of the tanker truck is shown. Figure 4 The rear view of the tanker truck is shown, combined with... Figures 1-4 The tanker truck 1 includes a frame 11 and a tank 12 mounted on the frame 11. In this application, the tank 12 has a large volume, thereby increasing the single transport capacity of the tanker truck 1.

[0103] For ease of description, the length direction of the frame 11 is defined as longitudinal, the width direction as transverse, the direction closer to the forward direction of the tank truck 1 is front, and the opposite direction is rear. The axial direction of the tank body 12 extends longitudinally.

[0104] Figure 5 A schematic diagram of the chassis structure is shown. Figure 6 The front view of the frame is shown, combined with Figure 5 and Figure 6 The front part of the frame 11 is lowered to form a recess 111. The front part refers to the area between the longitudinal center of the frame 11 and the front end, excluding the end.

[0105] Specifically, the frame includes two longitudinally arranged beams, which are recessed to form a concave portion 111.

[0106] Tank 12 is used to load materials. Figure 7 A schematic diagram of the tank structure in this embodiment is shown. Figure 8 The front view of the tank is shown. Figure 9 A top view of the tank is shown. Figure 10 A bottom view of the tank is shown. Figure 11 A rear view of the tank is shown. Figure 12 A front view of the tank is shown, combined with Figures 7-12 The tank body includes a cylindrical body and end caps 123 located at both ends of the cylindrical body along its axial direction.

[0107] Figure 13 A cross-sectional view of the tank along the LL direction is shown. (See attached diagram.) Figure 13 The tank body 12 is provided with reinforcing ribs 124 inside to increase the strength of the tank body 12. The reinforcing ribs 124 are connected between the inner walls of the tank body and extend into the accommodating space inside the tank body 12, thereby forming a support between the inner walls of the tank body 12 and improving the pressure resistance of the tank body.

[0108] Each end cap 123 has an elliptical cross-section. In this application, the elliptical shape of the end cap 123 can be either a standard ellipse or an approximate ellipse with a major axis and a minor axis.

[0109] The cylindrical body includes an upper cylindrical body 121 and two lower conical bodies 122. The upper cylindrical body 121 has a semi-elliptical cross-section. Furthermore, the lateral diameter of the upper cylindrical body 121 is larger than its vertical diameter. In this application, the lateral direction refers to the horizontal direction, and the vertical direction refers to the vertical direction. That is, the major axis of the upper cylindrical body 121 extends laterally. Compared to a circular structure, the semi-elliptical shape has a wider width, thereby increasing the overall volume of the tank 12.

[0110] The top of the upper cylinder 121 has two manholes, each corresponding to one of the two lower cones 122, for filling the tank 12 with materials. Each manhole is also equipped with a manhole cover.

[0111] Both lower cones 122 are located below the upper cylinder 121, and the two lower cones 122 are spliced ​​together along the axial direction of the cylinder.

[0112] To facilitate the description of the tank shape, the cylinder is divided into two sections at the dividing point between the two lower cones 122, and each section is divided into two half sections by the vertical dividing plane passing through the central axis of the lower cone 122.

[0113] See Figure 14 — Figure 18 The LL, PP, RR, NN, and MM sections are shown in the diagram. These sections reveal that the vertical profile of each semi-cylindrical section gradually transitions from a teardrop shape to an elliptical shape from one end where it intersects with another semi-cylindrical section to the other. Specifically, in the LL section, the outer profile of the cylinder is roughly teardrop-shaped; that is, it consists of an upper semi-elliptical profile (the major axis of which runs along the left-right direction of the tank) and a lower conical profile. The lower conical profile is formed by the two ends of the semi-elliptical profile extending downwards and gradually approaching each other. In the PP section, the outer profile of the cylinder is also roughly teardrop-shaped, but the difference from the LL section is that the lower conical profile is shorter and the curve is more rounded (i.e., relatively speaking, the lower conical profile of the LL section is sharper). The RR, NN, and PP sections have similar shapes, but the difference lies in the fact that the bottom contour of the RR section is more rounded than that of the PP section, and the bottom contour of the NN section is more rounded than that of the RR section, until the MM section transitions to an elliptical shape.

[0114] In other words, the trend of the vertical cross-sectional outer contour of each half-section from one end where it intersects with another half-section to the other end is as follows: the upper elliptical contour remains unchanged, while the lower conical contour gradually shortens and rounds from a long, pointed shape until it transitions to an elliptical shape at the other end.

[0115] See Figure 19 — Figure 23As can be seen from the JJ, HH, GG, FF, and EE sections of the cylinder, the horizontal cross-section of each lower cone 122 gradually transitions from a rectangular cross-section to an elliptical cross-section downwards from its junction with the upper cylinder 121. Specifically, in the JJ section, the horizontal cross-section of the lower cone is roughly rectangular; in the HH section, its overall shape is approximately rectangular, but its four corners have rounded transitions; in the GG section, its outline gradually transitions from straight lines to curves, but the overall outline is still approximately square; in the FF section, its outer outline is further curved, making its overall outline approximately elliptical; and in the EE section, its outline completely transitions to an elliptical shape. In other embodiments, the outline in the EE section can also be circular.

[0116] In other words, the trend of the horizontal cross-section outer contour of each lower cone 122 from its junction with the upper cylinder 121 downwards to the fluidization cone 125 is as follows: it first bends at the four corners of the rectangle, then bends further around the contour lines, gradually transitioning from a straight contour to a curved ellipse, until it completely transitions to an elliptical or circular cross-section.

[0117] Compared to traditional tanks, the lower cone 122 in this embodiment accounts for a larger proportion of the total height of the tank 12, thus ensuring a larger volume of the entire tank 12. At the same time, the two lower cones 122 can unload material simultaneously, improving the unloading speed.

[0118] Of the two lower cones 122, the bottom of the front lower cone 122 extends downward beyond the bottom of the rear lower cone 122. The lower part of the front lower cone 122 is adapted to the recess 111 of the frame 11.

[0119] Specifically, each lower cone 122 is flattened cone-shaped. The lower cone 122 gradually increases in diameter from bottom to top, and the width of the lower cone in the left-right direction at each horizontal section is not greater than the width in the front-back direction.

[0120] See Figure 24 and Figure 25 The lower cone 122 includes a left splicing surface 1221 and a right splicing surface 1222 symmetrically arranged on the left and right sides, respectively, and a front splicing surface 1223 and a rear splicing surface 1224 symmetrically arranged on the front and rear sides, respectively. The curvature of the front splicing surface 1223 and the rear splicing surface 1224 is greater than that of the left splicing surface 1221 and the right splicing surface 1222. That is, the front splicing surface 1223 and the rear splicing surface 1224 have a greater degree of curvature.

[0121] In this application, the bottom of the lower cone 122 is provided with an elliptical or circular opening, and a conical fluidizing cone 125 is provided at the opening. The upper cross-section of the fluidizing cone 125 is adapted to the bottom opening of the lower cone 122 and is elliptical or circular, while the lower cross-section is circular. A circular discharge hole is provided at the center of the bottom of the fluidizing cone 125. It should be noted that the ellipse in this application can be a standard ellipse or an approximate ellipse with a major axis and a minor axis, and the circle in this application can be a standard circle or an approximate circle with certain tolerances.

[0122] Furthermore, the tank body 12 also includes transition pieces. That is, the tank body 12 includes two transition pieces, and the two transition pieces are configured in a one-to-one correspondence with the two end caps 123.

[0123] Specifically, the transition piece connects the lower part of the end cap 123 to the adjacent lower cone 122, and the transition piece gradually slopes downward from the end connected to the end cap 123 to the end connected to the lower cone. Therefore, the material located at both ends of the tank body 12 can slide down to the lower cone 122 through the transition piece, and then slide down to the discharge port along the inclined surface of the lower cone 122.

[0124] Furthermore, a reinforcing ring is provided around the outer perimeter of the tank body 12 to increase the overall strength of the tank body 12. The reinforcing ring is located between the two lower cones 122.

[0125] In this embodiment, the reinforcing ring is a closed annular ring, which includes an adhesive portion and a transition portion.

[0126] In this embodiment, the tank body 12 includes a cylindrical body and end caps 123 located at both axial ends of the cylindrical body. The end caps 123 have an elliptical cross-section. The cylindrical body includes an upper cylindrical body 121 with a semi-elliptical cross-section and two lower cones 122 located below the upper cylindrical body 121, with the two lower cones 122 joined together along the axial direction of the cylindrical body. The semi-elliptical upper cylindrical body 121 widens the width of the upper part of the entire tank body 12, thereby increasing the volume of the entire tank body 12, that is, increasing the effective loading capacity of the tank body 12, and thus improving the single transport capacity of the tanker truck 1.

[0127] Meanwhile, the lower cone 122 of the tank body 12 adopts a flat cone design, and compared with the traditional tank body 12, the cone part of the present invention occupies a larger proportion, which increases the effective loading capacity and increases the inclination of the lower part of the tank body 12, so that the material can smoothly slide to the bottom and is more conducive to unloading.

[0128] The present invention also provides a method for forming the above-mentioned tank 12, comprising the following steps:

[0129] S11. A flat first blanking plate 2 is provided. The first blanking plate 2 is trapezoidal. The trapezoidal first blanking plate 2 is rolled into shape to obtain a semi-finished cylindrical section 3 with a lower opening 31.

[0130] In this application, the trapezoid of the first blanking plate 2 is not a trapezoid in a strict geometric sense, but rather refers to the shape of the first blanking plate 2 having an upper base, a lower base, and two waists, wherein the two ends of the upper base are slightly curved upwards, and the two waists are curved.

[0131] See Figure 26 The first blanking plate 2 includes a regular segment 21 and two irregular segments 22 integrally disposed at both ends of the regular segment 21. The regular segment 21 is rectangular, and the two irregular segments 22 are symmetrically distributed along the central axis of the regular segment 21. The regular segment 21 includes two parallel straight edges 211 and 212. The outer contour of the irregular segment 22 includes a first edge 221, a second edge 222 and a third edge 223 connected in sequence. The first edge 221 is a straight edge and extends integrally from the first straight edge 211 of the regular segment 21. The second edge 222 is arc-shaped, and the concave surface of the second edge 222 faces outward from the first blanking plate. The convex surfaces of the second edges 222 of the two irregular segments 22 are arranged opposite each other. The third edge 223 is arc-shaped, and its convex surface faces the first edge 221. One end of the third edge 223 is connected to the second edge 222, and the other end is connected to the second straight edge 212 of the regular segment 21.

[0132] When the first blanking plate is formed into a semi-finished cylindrical section 3, the third sides 223 of the two irregular segments 22 are spaced apart and opposite each other, and the opening 31 is formed between the two third sides 223.

[0133] Furthermore, it also includes opening a circular or semi-circular hole on the first cutting plate before rolling the semi-finished cylindrical section 3.

[0134] In this embodiment, the hole is semi-circular, and the center of the hole is located at the center point of the first straight side 211, with the convex surface of the hole facing the second straight side 212. In other embodiments, the circular hole can be directly opened at the regular segment 21, between the first straight side 211 and the second straight side 212.

[0135] S12. A flat second blanking plate 4 is provided, which is bent and welded to the opening 31 of the semi-finished cylindrical section 3 to obtain a semi-cylindrical section 5, so that the upper part of the semi-cylindrical section 5 is semi-elliptical and the lower part is semi-conical.

[0136] See Figure 27The outer contour of the second blanking plate 4 includes a fifth side 45, a sixth side 46, a seventh side 47, and an eighth side 48 connected in sequence. The fifth side 45, the sixth side 46, the seventh side 47, and the eighth side 48 are all arc-shaped. The convex surfaces of the fifth side 45 and the seventh side 47 are opposite each other. The line connecting the midpoints of the fifth side 45 and the seventh side 47 forms the axis of symmetry of the second blanking plate 4. The sixth side 46 and the eighth side 48 are symmetrically distributed about the axis of symmetry L. The concave surfaces of the sixth side 46 and the eighth side 48 are opposite each other. The curvature of the fifth side 45 is less than the curvature of the seventh side 47.

[0137] See Figure 28 , Figure 29 and Figure 30 The sixth side 46 and the eighth side 48 of the second blanking plate 4 after bending and forming are welded to the two third sides 223 of the first blanking plate, respectively.

[0138] Before bending the second blanking plate 4, the following steps are also included: first, a transition surface is pressed out at its axis of symmetry.

[0139] Furthermore, the semi-finished cylindrical section 3 and the second blanking plate 4 are bent and positioned at the opening 31 of the semi-finished cylindrical section 3. In this embodiment, positioning is achieved by a template.

[0140] S13. Two half-cylinder sections 5 are welded together along the axis to form a single cylinder section 6.

[0141] Specifically, the welding between half-section 5 and half-section 5 is a circumferential weld, which is conducive to mechanized welding.

[0142] S14. Form two elliptical heads respectively.

[0143] S15. Assemble two cylindrical sections 6 together to form a cylindrical body, and weld two end caps to both ends of the cylindrical body to form a tank for loading materials.

[0144] Among them, the welding between cylinder section 6 is also a circumferential weld, which is conducive to mechanized welding.

[0145] Furthermore, it also includes welding a fluidizing cone 125 with a circular or conical outer contour to the bottom of each cylindrical section 6. This step can be performed before or after the cylindrical sections 6 are joined together.

[0146] In this embodiment, a semi-finished cylindrical section 3 is integrally wound and formed by a first blanking plate. A second blanking plate 4 is bent and welded to the semi-finished cylindrical section 3 to obtain a semi-cylindrical section 5. Two pre-made semi-cylindrical sections 5 are then welded together to form a cylindrical section 6. Finally, the cylindrical sections 6 are spliced ​​together along their own cylindrical axial direction to obtain the tank body. The weld between the two semi-cylindrical sections 5 is a circumferential weld, and the weld between two adjacent cylindrical sections 6 is also a circumferential weld, which facilitates mechanized welding and thus improves the production efficiency of the tank body.

[0147] In particular, the forming of cylindrical section 6 involves creatively dividing it into two parts according to the axial symmetry plane of the cone. Each part is formed into two semi-cylindrical sections 5, which are then butt-welded together to form a single cylindrical section 6. This significantly simplifies the forming process of the individual cylindrical section 6, facilitates mechanized and automated welding, and improves the production efficiency of the tank. Furthermore, the transverse assembly of the two cylindrical sections also employs a longitudinal circumferential weld, effectively improving the welding quality and thus enhancing the overall quality of the product.

[0148] Furthermore, the present invention optimizes the molding process for each half-cylinder section 5, so that the half-cylinder section 5 is formed and welded separately by two blanking plates, which greatly improves production efficiency, facilitates large-scale mechanized production, reduces labor intensity and safety hazards for workers, and also reduces labor costs.

[0149] The present invention also provides another method for forming the above-mentioned tank 12, comprising the following steps:

[0150] S21. Press multiple blanking plates into arc-shaped splicing plates and then splice them together to form a lower cone 122, such that the lower cone 122 includes a left splicing plate 1225 and a right splicing plate 1226 located on the left and right sides, and a front splicing plate 1227 and a rear splicing plate 1228 located on the front and rear sides.

[0151] The lower cone 122, formed by multiple splicing plates, is as follows: Figure 31 and Figure 32 As shown. Among them, the left splicing plate 1225 forms the left splicing surface 1221, the right splicing plate 1226 forms the right splicing surface 1222, the front splicing plate 1227 forms the front splicing surface 1223, and the rear splicing plate 1228 forms the rear splicing surface 1224.

[0152] The dividing line between any one of the front splicing plate 1227 and the rear splicing plate 1228 and any one of the left splicing plate 1225 and the right splicing plate 1226 is located at the point where the curvature of the two plates changes abruptly. The curvature of the front splicing plate 1227 and the rear splicing plate 1228 is greater than that of the left splicing plate 1225 and the right splicing plate 1226.

[0153] In this embodiment, the front splicing plate 1227 is formed by rolling or stamping a single sheet of material into a single-piece structure. The rear splicing plate 1228 is formed by rolling or stamping a single sheet of material into a single-piece structure. The left splicing plate 1225 is formed by rolling or stamping a single sheet of material into a single-piece structure. The right splicing plate 1226 is formed by rolling or stamping a single sheet of material into a single-piece structure. The lower cone 122 after being spliced ​​together is as follows: Figure 31 As shown.

[0154] In other embodiments, either the left splicing plate 1225 or the right splicing plate 1226 is obtained by rolling or stamping two symmetrical single plates respectively, and then arranging them in the front and back directions and splicing them together.

[0155] Alternatively, either the front splicing plate 1227 or the rear splicing plate 1228 can be obtained by rolling or stamping two symmetrical single plates separately, arranging them in the left-right direction, and splicing them together.

[0156] That is, any one, two, three, or all of the front splicing plate 1227, rear splicing plate 1228, left splicing plate 1225, and right splicing plate 1226 are obtained by rolling or stamping two single plates and then splicing them together. The lower cone 122 after splicing together is as follows: Figure 32 As shown.

[0157] Preferably, in step S21, the lower cone 122 is formed into a flat cone.

[0158] S22, The upper cylinder 121 with a semi-elliptical cross-section is formed.

[0159] The upper cylinder 121 is made of a single sheet rolled into a single integrated structure.

[0160] Alternatively, the upper cylinder 121 can be divided into two upper cylinder sections 1211 at the junction of the two lower cones. The forming method of the two upper cylinder sections 1211 includes: cutting out two plates and rolling the two plates into shape to obtain an upper cylinder section 1211 with a semi-elliptical cross-section.

[0161] Two lower cones 122 are welded to two upper cylinders 1211 respectively to obtain cylinder sections 6. The two cylinder sections 6 are then welded together to form the upper cylinder 121.

[0162] S23, Form two elliptical heads 123 respectively.

[0163] S24. Weld the two lower cones 122 to the upper cylinder 121 to obtain the cylinder. The two lower cones 122 are spliced ​​along the axial direction, and the lower cones 122 are located below the upper cylinder 121.

[0164] In one embodiment, the two lower cones 122 are directly welded to the upper cylinder 121 to obtain the cylinder. For example... Figure 33 As shown, the two lower cones 122 are welded to the lower part of the upper cylinder 121.

[0165] In other embodiments, the two lower cones 122 are welded to the two upper half-cylinders 121 respectively to obtain the cylinder section 6, such as... Figure 34 , Figure 35 and Figure 36 As shown. The two cylindrical sections 6 are then welded together to form the cylindrical body.

[0166] S25. Weld the two end caps 123 to both ends of the cylinder to form the tank body 12.

[0167] The forming method of the tank body 12 also includes welding a fluidizing cone 125 below each lower cone 122.

[0168] In this embodiment, the forming method of the tank body 12 is simple and efficient in forming the front splicing plate 1227, the rear splicing plate 1228, the left splicing plate 1225, the right splicing plate 1226, and the upper cylinder 121.

[0169] As can be seen from the above technical solution, the advantages and positive effects of the present invention are as follows:

[0170] The tank body of this invention increases the overall volume of the tank by combining a semi-elliptical upper cylinder with two flattened conical lower cones, thereby increasing the effective loading capacity and the single-trip transport capacity of the tanker truck. Simultaneously, compared to traditional tank bodies, the flattened conical lower cones increase the inclination of the lower part of the tank, allowing materials to smoothly slide to the bottom and facilitating unloading.

[0171] In the can forming method of this invention, two cylindrical sections are first formed separately, and then the two cylindrical sections are welded together. Specifically, during the cylindrical section forming process, the section is creatively divided into two parts according to the axial symmetry plane of the cone, so that each part is formed into two half-cylinder sections. These two half-cylinder sections are then butt-welded together to form a single cylindrical section. This greatly simplifies the forming difficulty of individual cylindrical sections, facilitates mechanized and automated welding, and improves the production efficiency of the can. Furthermore, when the two cylindrical sections are laterally combined, a longitudinal circumferential weld is used, effectively improving the welding quality of the product and thus enhancing the overall quality of the product.

[0172] Furthermore, this invention optimizes the molding process for each semi-cylindrical section, enabling them to be formed and welded separately from two blanking plates. This significantly improves production efficiency, facilitates large-scale mechanized production, reduces labor intensity and safety hazards, and lowers labor costs. Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, not restrictive. Because the invention can be embodied in many forms without departing from its spirit or essence, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A tank body, characterized in that, Includes a cylindrical body and end caps located at both axial ends of the cylindrical body; The cross-section of the end cap is elliptical; The cylindrical body includes: An upper cylinder has a semi-elliptical cross-section, and the diameter of the upper cylinder in the left-right direction is larger than its diameter in the up-down direction. Both lower cones are located below the upper cylinder; and the two lower cones are joined together along the axial direction of the cylinder. The lower cone is flattened and tapered, with its diameter gradually increasing from bottom to top, and the width of the lower cone in the left-right direction at each horizontal section is not greater than its width in the front-back direction. The cylinder is divided into two sections at the dividing point between the two lower cones. Each section is divided into two half sections by the vertical dividing plane passing through the central axis of the lower cone. The outer contour of the vertical cross section of each half section gradually transitions from a teardrop shape to an ellipse from the end connected to the other half section to the other end. The outer contour of the horizontal cross section of each lower cone gradually transitions from a rectangle to an ellipse or a circle from the position where it intersects with the upper cylinder.

2. The tank according to claim 1, characterized in that, The tank body is equipped with reinforcing ribs.

3. The tank body according to claim 1, characterized in that, The lower cone includes a left splicing surface and a right splicing surface symmetrically arranged on the left and right sides, respectively, and a front splicing surface and a rear splicing surface symmetrically arranged on the front and rear sides, respectively, wherein the curvature of the front splicing surface and the rear splicing surface is greater than the curvature of the left splicing surface and the right splicing surface.

4. The tank according to claim 1, characterized in that, The vertical cross-sectional outer contour of each semi-cylindrical section changes from one end where it intersects with another semi-cylindrical section to the other end in the following trend: the upper elliptical contour remains unchanged, while the lower conical contour gradually shortens and rounds from a long, pointed shape until it transitions to an elliptical shape at the other end.

5. The tank body according to claim 1, characterized in that, The horizontal cross-sectional outer contour of each of the lower cones changes downwards from its junction with the upper cylinder: it first bends at the four corners of the rectangle and then bends further around the perimeter, gradually transitioning from a straight contour to a curved ellipse, until it completely transitions to an elliptical or circular cross-section.

6. The tank body according to claim 1, characterized in that, The tank body also includes a transition piece; the transition piece connects the lower part of the end cap to the adjacent lower cone, and the transition piece gradually slopes downward from the end connected to the end cap to the end connected to the lower cone.

7. The tank body according to claim 1, characterized in that, The bottom of the lower cone located in front extends downward beyond the bottom of the lower cone located behind.

8. The tank body according to claim 1, characterized in that, A reinforcing ring is provided around the outer periphery of the tank, and the reinforcing ring is located between the two lower cones.

9. The tank body according to claim 8, characterized in that, The reinforcing ring is a closed annular ring, which includes an adhesive portion and a transition portion.

10. The tank according to claim 1, characterized in that, The bottom of the lower cone is provided with an elliptical or circular opening, and a conical fluidizing cone is provided at the opening. The upper cross section of the fluidizing cone is elliptical or circular, the lower cross section is circular, and a circular discharge hole is provided at the center of the bottom of the fluidizing cone.

11. A method for forming a tank body as described in any one of claims 1 to 10, characterized in that, Includes the following steps: A flat first blanking plate is provided, the first blanking plate is trapezoidal, and the trapezoidal first blanking plate is rolled into shape to obtain a semi-finished cylindrical section with an open bottom. A flat second blanking plate is provided, which is bent and welded to the opening of the semi-finished cylindrical section to obtain a semi-cylindrical section, so that the upper part of the semi-cylindrical section is semi-elliptical and the lower part is semi-conical. Two semi-cylinder sections are welded together in a manner that aligns them along the axis to form a single cylinder section; Two oval-shaped heads are formed separately; Two cylindrical sections are assembled together to form a cylindrical body, and two end caps are welded to both ends of the cylindrical body to form a tank for loading materials.

12. The method for forming a tank according to claim 11, characterized in that, The first blanking plate includes regular segments and two irregular segments integrally disposed at both ends of the regular segments. The regular segments are rectangular, and the two irregular segments are symmetrically distributed along the central axis of the regular segments. The regular segments include two parallel straight edges, a first straight edge and a second straight edge. The outer contour of the irregular segments includes a first edge, a second edge and a third edge connected in sequence. The first edge is a straight edge and extends integrally from the first straight edge of the regular segment. The second edge is arc-shaped, and the concave surface of the second edge faces outward from the first blanking plate. The convex surfaces of the second edges of the two irregular segments are arranged opposite each other. The third edge is arc-shaped, and its convex surface faces the first edge. One end of the third edge is connected to the second edge, and the other end is connected to the second straight edge of the regular segment. When the first blanking plate is formed into the semi-finished cylindrical section, the third sides of the two irregularly segmented sections are spaced apart and opposite each other, and the opening is formed between the two third sides.

13. The method for forming a tank according to claim 11, characterized in that, It also includes opening circular or semi-circular holes in the first feed plate before rolling the semi-finished cylindrical section.

14. The method for forming a tank according to claim 11, characterized in that, The outer contour of the second blanking plate includes a fifth side, a sixth side, a seventh side, and an eighth side connected in sequence. The fifth side, the sixth side, the seventh side, and the eighth side are all arc-shaped. The convex surfaces of the fifth side and the seventh side are opposite to each other. The line connecting the midpoints of the fifth side and the seventh side forms the axis of symmetry of the second blanking plate. The sixth side and the eighth side are symmetrically distributed about the axis of symmetry. The concave surfaces of the sixth side and the eighth side are opposite to each other. The curvature of the fifth side is less than the curvature of the seventh side. The sixth and eighth sides of the second blanking plate after bending and forming are respectively welded to the two third sides of the first blanking plate.

15. The method for forming a tank according to claim 11, characterized in that, The semi-finished cylindrical section and the second feeding plate are bent and formed and positioned at the opening of the semi-finished cylindrical section.

16. A method for forming a tank body as described in any one of claims 1 to 10, characterized in that, Includes the following steps: Multiple blanking plates are pressed into arc-shaped splicing plates and then spliced ​​together to form the lower cone, so that the lower cone includes a left splicing plate and a right splicing plate located on the left and right sides, and a front splicing plate and a rear splicing plate located on the front and rear sides. The upper cylinder has a semi-elliptical cross-section. Two oval-shaped heads are formed separately; The two lower cones are welded to the upper cylinder to form a cylinder, the two lower cones are spliced ​​along the axial direction, and the lower cones are located below the upper cylinder; The two end caps are welded to both ends of the cylinder to form the tank body.

17. The method for forming a tank according to claim 16, characterized in that, The boundary line between any one of the front splicing plate and the rear splicing plate and any one of the left splicing plate and the right splicing plate is located at the point where the curvature of the two plates changes abruptly, and the curvature of the front splicing plate and the rear splicing plate is greater than that of the left splicing plate and the right splicing plate.

18. The method for forming a tank according to claim 16, characterized in that, The front splicing plate is a structure formed by rolling or stamping a single sheet into an integral front and rear shape. The rear splicing plate is formed by rolling or stamping a single sheet into a structure that is integrally formed from front and back. The left splicing plate is a structure made from a single sheet of rolled material or stamped into an integral shape. The right splicing plate is formed by rolling or stamping a single sheet into a single integrated structure.

19. The method for forming a tank according to claim 16, characterized in that, Either the left splicing plate or the right splicing plate is obtained by rolling or stamping two symmetrical single plates separately, then arranging them in the front and back directions and splicing them together. Either the front splicing plate or the rear splicing plate is obtained by rolling or stamping two symmetrical single plates separately, arranging them in the left-right direction, and splicing them together.

20. The method for forming a tank according to claim 16, characterized in that, The upper cylinder is divided into two upper half-cylinders at the junction of the two lower cones; The forming method of the two upper cylinders includes: cutting out two plates and rolling the two plates into shape to obtain an upper cylinder with a semi-elliptical cross-section; The two lower cones are welded to the two upper cylinders respectively to obtain cylinder sections, and the two cylinder sections are then welded together to obtain the cylinder body.

21. The method for forming a tank according to claim 16, characterized in that, The upper cylinder is formed by rolling a single sheet into a single integrated structure. The two lower cones are welded to the upper cylinder to form the cylinder.

22. A tanker truck, characterized in that, It includes a vehicle frame and a tank disposed on the vehicle frame, wherein the tank is the tank as described in any one of claims 1 to 10.

23. The tanker truck according to claim 22, characterized in that, The frame includes two longitudinally arranged beams, which are recessed to form a concave portion; The bottom of the lower cone located in front extends downward beyond the bottom of the lower cone located behind, and the bottom of the lower cone located in front is located on the recess.

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