A middle beam and a bottom frame

Abstract

The present invention discloses a center beam and a base frame, wherein the center beam comprises an upper cover plate, a lower cover plate arranged relative to the upper cover plate and spaced apart from the upper cover plate, and a web plate arranged in pairs between the upper cover plate and the lower cover plate, wherein the upper cover plate, the lower cover plate and the web plate form a cavity, wherein the upper cover plate is provided with a first opening, wherein the first opening is communicated with the cavity, and a second opening is provided at a position of the web plate corresponding to the first opening, wherein the first opening is communicated with the second opening at the upper and lower parts, so that a part of the goods to be transported can fall into the lower part of the center beam through the first opening and the second opening.

Description

Technical Field

[0001] The present invention relates to the technical field of center beams, and in particular to a center beam and a base frame. Background Art

[0002] Existing railway flat cars can be mainly divided into two categories, one is ordinary flat cars, and the other is long flat cars. Ordinary flat cars include container flat cars, flatbed shared cars, etc. Container flat cars are equipped with different numbers of container locks according to the number of transported containers, and the vehicle load is generally low; flatbed shared cars are equipped with reversible container locks, and are generally paved with wooden floors, so they can carry containers and various mechanical equipment, vehicles, etc., and load and reinforce to complete cargo transportation. Long flat cars are generally equipped with floors, and are mainly used to transport chemical equipment, rails, long and long equipment and other goods. With the development of productivity, the improvement of society's requirements for environmentally friendly transportation, the gradual refinement of division of labor, the change of transportation mode, and the rapid development of rail-water transport, railway flat cars have played an increasingly important role.

[0003] However, the existing flat cars are not very reasonable in terms of transporting and fixing boxes with protrusions or goods with protrusions. In view of this, it is urgent to provide a more reasonable way to transport boxes with protrusions. Summary of the invention

[0004] An object of the present invention is to provide a new technical solution for a center beam and a base frame.

[0005] In one aspect of the present invention, a center beam is provided, the center beam comprising an upper cover plate, a lower cover plate arranged relative to the upper cover plate and spaced apart from the upper cover plate, and a web plate arranged in pairs between the upper cover plate and the lower cover plate, wherein the upper cover plate, the lower cover plate and the web plate form a cavity.

[0006] The upper cover plate is provided with a first opening, and the first opening is communicated with the cavity.

[0007] A second opening is provided at a position of the web corresponding to the first opening, and the first opening is connected to the second opening at the top and the bottom, so that a part of the goods to be transported can fall into the lower part of the middle beam through the first opening and the second opening.

[0008] Optionally, the upper cover plate includes a cover plate body and a wing plate, and the wing plate is formed by extending from a side wall of the cover plate body;

[0009] The first opening includes a first section and a second section, the first section is located on the cover plate body, the second section is located on the two wing plates respectively, and the mouth of the second opening is aligned with the position where the first section and the second section are connected.

[0010] Optionally, the first section is arranged perpendicular to the second section.

[0011] Optionally, two vertical plates are vertically arranged on the outer wall of the web, and the two vertical plates are arranged on both sides of the second opening, the upper end surfaces of the vertical plates are connected to the wing plates, and the lower end surfaces of the vertical plates extend to the lower cover plate, and a connecting plate is fixed to the lower surface of the wing plate away from the second section, and the two ends of the connecting plate are respectively connected to the two vertical plates, and the vertical plates and the connecting plates are arranged outside the second section and the second opening.

[0012] Optionally, the end of the vertical plate away from the upper cover plate is formed into a concave arc surface.

[0013] Optionally, a reinforcing portion is fixed on a surface of each of the vertical plates away from the second opening, and the reinforcing portion includes a plurality of ribs that are parallel to each other and spaced apart along the z-axis direction;

[0014] Each of the ribs extends from the vertical plate to the web.

[0015] Optionally, a curved surface transition portion is provided on the rib plate, the vertical plate and the web plate have a connection position, and the curved surface transition portion is opposite to the connection position.

[0016] Optionally, the thickness of the wing plate gradually increases from both ends to the middle.

[0017] In one aspect of the present invention, there is provided a chassis, the chassis comprising the above-mentioned middle beam, end beams respectively connected to two ends of the middle beam, and side beams connecting the two end beams.

[0018] A bolster is also fixed on the center beam, and the first opening is spaced apart from the position where the bolster is located.

[0019] Optionally, a counterweight assembly is further provided, and the counterweight assembly is arranged on the end beam and / or the middle beam.

[0020] Optionally, a brake assembly is suspended at the lower portion of the base frame, and the first opening is located between the bolster and the brake assembly.

[0021] Optionally, a protective plate is further included, and the protective plate is rotatably connected to the side beam.

[0022] Optionally, a locking pin is provided on one of the side beam and the protective plate, and a locking hole matched with the locking pin is provided on the other, and when the protective plate is in a vertical position, the locking pin and the locking hole form a locking state.

[0023] In this way, the protrusion of the cargo or the protrusion of the box can fall into the lower part of the middle beam through the first opening and the second opening, thereby meeting the space requirements for cargo loading and lifting while ensuring the structural strength of the middle beam.

[0024] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0026] Figure 1 is a top view of the center beam in an embodiment of the present invention;

[0027] Figure 2 is a side view of a center beam in an embodiment of the present invention;

[0028] Figure 3 yes Figure 2 A schematic diagram of the cross section of the middle A part;

[0029] Figure 4 is a cross-sectional view of a center beam in an embodiment of the present invention;

[0030] Figure 5 is a partial enlarged schematic diagram of a center beam in an embodiment of the present invention;

[0031] Figure 6 It is one of the structural schematic diagrams of the base frame in the embodiment of the present invention;

[0032] Figure 7 It is one of the partial structural schematic diagrams of the base frame in the embodiment of the present invention;

[0033] Figure 8 This is the second structural schematic diagram of the base frame in the embodiment of the present invention;

[0034] Fig. 9 is a side view of a chassis with a protective plate installed in an embodiment of the present invention;

[0035] Fig.10 1 is a top view of the chassis with a protective plate installed in the embodiment of the present invention

[0036] Fig.11 1 is a schematic diagram of the structure of the protective plate of the chassis in two states in an embodiment of the present invention;

[0037] Fig.12 yes Fig.11 A partial enlarged schematic diagram of part B;

[0038] Fig.13 This is the second schematic diagram of the partial structure of the base frame in the embodiment of the present invention;

[0039] Fig.14This is the third schematic diagram of the partial structure of the base frame in the embodiment of the present invention;

[0040] Fig.15 It is a partial schematic diagram of the connection between the box body and the side beam in an embodiment of the present invention.

[0041] Description of reference numerals:

[0042] 100, cover body; 110, first opening; 111, first section; 112, second section; 120, wing plate; 200, lower cover plate; 300, web plate; 310, second opening; 320, vertical plate; 330, connecting plate; 400, rib plate; 600, protective plate; 610, retaining spring; 620, box body; 630, rubber sheet; 640, bolt assembly; 700, pillow beam; 710, counterweight assembly; 720, support rod; 730, angle steel; 740, brake assembly; 750, hinge; 800, side beam; 810, end beam; 820, middle beam; 830, locking pin. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0044] Figure 1 and Figure 2 The direction of the X-axis is the length direction of the middle beam 820, and the direction of the Y-axis is the width direction of the middle beam 820. Figure 2 The direction where the middle z-axis is located is the height direction of the middle beam 820 .

[0045] In order to meet the transportation needs of boxes with protruding parts or goods with protruding parts, the adaptability of the middle beam 820 is improved. In one embodiment of the present invention, a middle beam 820 is provided. The middle beam 820 is located in the center of the chassis, and the chassis is, for example, the chassis of a railway flat car. The middle beam 820 is the foundation and main load-bearing rod of the entire chassis. The middle beam 820 includes an upper cover plate 900, a lower cover plate 200 arranged at a relative interval with the upper cover plate 900, and a web plate 300 arranged in pairs between the upper cover plate 900 and the lower cover plate 200. The upper cover plate 900, the lower cover plate 200 and the web plate 300 form a cavity.

[0046] The upper cover plate 900 is provided with a first opening 110, and the first opening 110 is communicated with the cavity. A second opening 310 is provided at a position of the web plate 300 corresponding to the first opening 110, and the first opening 110 is communicated with the second opening 310, so that a part of the goods to be transported can fall into the lower part of the middle beam 820 through the first opening 110 and the second opening 310.

[0047] by Figure 1 and Figure 2Taking the middle beam 820 in the example, the two ends of the web 300 are connected between the upper cover plate 900 and the lower cover plate 200 to form a type II structure, and the size of the middle part of the web 300 along the z-axis is larger than the size of the two ends of the web 300. The first opening 110 penetrates the upper cover plate 900 in the thickness direction. And extends along the X-axis direction. A second opening 310 is opened in the direction of the z-axis on each web 300, and the second opening 310 is symmetrically arranged relative to the center line of the length direction of the middle beam 820. The second opening 310 is connected to the first opening 110 at the top and bottom to form an avoidance space, which is used to accommodate the protrusion of the box with the protrusion. The protrusion can fall on the lower part of the middle beam 820 through the first opening 110 and the second opening 310, so that the space requirements for cargo loading and lifting can be met on the premise of meeting the structural strength of the middle beam 820.

[0048] When the protrusion of the box body is embedded in the first opening 110 and the second opening 310 , it can also play a limiting role to prevent the box body from swinging along the middle beam 820 , thereby increasing the fixing strength of the box body.

[0049] For example, the upper cover plate 900 includes a cover plate body 100 and a wing plate 120 extending along the length direction of the middle beam 820. The wing plate 120 is formed by extending part of the side wall of the cover plate body 100 outward. Figure 1 , the upper cover plate 900 is partially widened, and the widened portion is the wing plate 120; the first opening 110 includes a first section 111 and a second section 112, the first section 111 is located at the cover plate body 100, and the second section 112 is located at the two wing plates 120 respectively, and the second opening 310 is Figure 3 In the U-shaped structure shown, the mouth of the second opening 310 is aligned with the position where the first section 111 and the second section 112 are connected, so that they are connected from top to bottom.

[0050] See also Figure 1 The first opening 110 is a cross structure. The first section 111 of the first opening 110 extends along the length direction of the middle beam 820, and the second section 112 of the first opening 110 extends along the width direction of the middle beam 820. Two wing plates 120 are symmetrically arranged on both sides of the cover body 100, and the second section 112 penetrates along the thickness direction of the wing plates 120. Figure 1 As shown, the dimension of the first section 111 along the X-axis direction is greater than the dimension of the second section 112 along the X-axis direction. The first section 111 and the second section 112 extend in directions perpendicular to each other to form a cross structure.

[0051] In this way, the adaptability to irregular goods or boxes with protrusions is increased, and the second section 112 increases the avoidance space of the first opening 110 in the Y-axis direction. During transportation, the wing plate 120 also forms a stop in the X-axis and Y-axis directions to prevent the box from shaking in the X-axis and Y-axis directions and interfering with other components at the bottom of the middle beam 820.

[0052] In an example, Figure 3 As shown, two vertical plates 320 are vertically arranged on the outer wall of the web 300, and the two vertical plates 320 are arranged on both sides of the second opening 310. The upper end surface of the vertical plate 320 is connected to the wing plate 120, and the lower end surface of the vertical plate 320 extends to the lower cover plate 200. A connecting plate 330 is fixed on the lower surface of the wing plate 120 away from the second section 112. The connecting plate 330 can be parallel to the web 300, and the two ends of the connecting plate 330 are respectively connected to the two vertical plates 320. The vertical plates 320 and the connecting plates 330 are arranged around the second section 112 and the outside of the second opening 310.

[0053] The vertical plate 320 provided above can reinforce the first opening 110 and the second opening 310 on the web 300. In addition, the connecting plate 330 can be welded between the two vertical plates 320, and the connecting plate 330 can provide support for the longitudinal force between the two vertical plates 320.

[0054] Further, see Figure 4 The projection range of the wing plate 120 on the horizontal plane is located outside the projection range of the lower cover plate 200 on the horizontal plane, the upper end surface of the vertical plate 320 abuts against the lower surface of the wing plate 120, the lower end surface of the vertical plate 320 abuts against the lower cover plate 200, and the side wall of the vertical plate 320 is welded to the outer surface of the web 300. The end of the vertical plate 320 away from the upper cover plate 900, that is, the lower end surface of the vertical plate 320 forms a concave arc surface, and the concave arc surface is concave from the outer side of the vertical plate 320 toward the direction close to the web 300. In this way, the vertical load bearing capacity of the vertical plate 320 is improved.

[0055] In one example, see Figure 5 A reinforcing portion is fixed on the surface of each vertical plate 320 away from the second opening 310, and the reinforcing portion is composed of a plurality of ribs 400 that are parallel to each other and arranged at intervals along the z-axis direction; each rib 400 extends from the vertical plate 320 to the web 300.

[0056] Two groups of reinforcement parts are arranged in pairs on both sides of the upper cover plate 900, and each group of reinforcement parts includes a plurality of ribs 400 spaced apart and distributed along the height direction of the center beam 820. Each rib 400 is located at the position where the vertical plate 320 is connected to the web plate 300. It can be seen that the reinforcement part can be composed of three ribs 400 or five ribs 400, and the number of ribs 400 is not limited here, and is subject to the actual needs of those skilled in the art.

[0057] For example, Figure 5 The vertical plate 320 is located between the rib plate 400 and the connecting plate 330 , and the rib plate 400 and the connecting plate 330 jointly reinforce the vertical plate 320 to improve the limiting strength of the second section 112 .

[0058] In one example, see Figure 5 A curved transition portion is provided on the rib plate 400 , the vertical plate 320 and the web plate 300 have a connection position, and the curved transition portion is opposite to the connection position.

[0059] The cambered transition portion is recessed from the rib plate 400 toward the connection position of the web 300 and the vertical plate 320, thereby further reinforcing the connection position of the vertical plate 320 and the web 300. The end of the rib plate 400 on the same side away from the vertical plate 320 extends along the surface of the web 300.

[0060] It can be seen that the cambered transition portion may not be provided, so as to meet the requirements of relevant standards for vehicle structural strength and rigidity.

[0061] like Figure 2 and Figure 4 As shown, the thickness of the wing plate 120 gradually increases from both ends to the middle along the X-axis direction to further improve the limiting strength of the second section 112 .

[0062] According to one embodiment of the present invention, a chassis of a railway flat car is provided. Figure 6 The underframe includes a middle beam 820, end beams 810 respectively connected to two ends of the middle beam 820, and a side beam 800 connecting the two end beams 810. A bolster 700 is also provided on the middle beam 820, and the first opening 110 is away from the position where the bolster 700 is located. The bolster 700 is used to fix the running gear, such as for fixing the bogie. The first opening 110 is away from the position where the bolster 700 is located, so as to avoid damage to the bearing capacity of the bolster 700.

[0063] In one embodiment, Figure 7 As shown, the chassis is also provided with a counterweight assembly 710, and the counterweight assembly 710 is arranged on the end beam 810 and / or the middle beam 820. The counterweight assembly 710 is, for example, a counterweight iron. The counterweight iron is arranged on the end beam 810 or the middle beam 820 according to the needs of transportation, and can also be arranged on both the end beam 810 and the middle beam 820. The direction in which the counterweight assembly 710 is arranged is opposite to the direction in which the goods are skewed. In this way, the carrying capacity for the skewed goods can be enhanced.

[0064] In one embodiment, in order to meet the requirements of box transportation, provide the largest possible space for the box, reduce the length of the vehicle, and improve the comprehensive benefits of vehicle transportation, the vehicle's brake assembly 740 and various ancillary facilities are designed and installed under the chassis.

[0065] See also Figure 8A brake assembly 740 is suspended on the lower surface of the base frame, and the first opening 110 is located between the bolster 700 and the brake assembly 740. The brake assembly 740 includes an air cylinder assembly and a brake driving device.

[0066] For example, in order to install enough equipment under the chassis and save space as much as possible, the brake assembly 740 is modularly designed to adapt to different box cargoes and avoid interference with the cargo box. Figure 8 The brake assembly 740 is symmetrically arranged along the central axis of the length direction of the middle beam 820. A bracket can be arranged first, and the brake assembly 740 is welded on the bracket to form an integral module, and then the bracket is installed at the lower part of the chassis. In this way, the installation efficiency of the brake assembly 740 is improved. The first opening 110 is spaced from the brake assembly 740 to avoid interference of the brake assembly 740 with the first opening 110.

[0067] Furthermore, each modular brake assembly can slide in the longitudinal direction of the chassis as a whole to better meet the space requirements of goods and other auxiliary facilities. Specifically, slide rails are arranged on the side beams 800 and the middle beam 820 along the X-axis direction, and sliders are arranged on the brackets of the modular brake assembly 740 so that the brake assembly 740 can slide relative to the chassis.

[0068] like Fig. 9 , Fig.10 , Fig.11 as well as Fig.12 As shown, in one embodiment of the present invention, a protective plate 600 is further included, and the protective plate 600 is rotatably connected to the side beam 800. For example, the maximum rotation angle of the protective plate 600 relative to the side beam 800 can reach 115°. The protective plate 600 is used to protect the device hoisted on the chassis. By rotatably connecting the protective plate 600 to the side beam 800, it is convenient to inspect and repair the device hoisted on the chassis. In addition, the transportation safety of various auxiliary facilities hoisted at the bottom of the chassis is improved.

[0069] Fig.11 The schematic diagram shows the state where the protective plate 600 turns from a vertical position to a horizontal position. Fig.12 for Fig.11 A partial enlarged view of area B inside.

[0070] See also Fig.11 and Fig.12An angle steel 730 is provided on the lower surface of the side beam 800. The angle steel 730 is used to hang the end of the protective plate 600. A hinge 750 is provided on the angle steel 730. One end of the hinge 750 is fixed to the angle steel 730, and the other end is fixed to the protective plate 600. The protective plate 600 can rotate along the central pin of the hinge 750 to complete the rotary switch function. At the same time, the hinge 750 has a limit function to prevent the protective plate 600 from rotating too much when rotating from a horizontal position to a vertical position, thereby preventing interference with the equipment at the bottom of the chassis.

[0071] A support rod 720 is provided on the surface of the angle steel 730 away from the hinge 750, and the support rod 720 is connected to the distal end of the protective plate 600 to support the protective plate 600 when the protective plate 600 is in a horizontal position. For example, a support rod 720 mounting hinge seat is provided at both ends of the protective plate 600 and at corresponding positions of the side beam 800, and the support rod 720 is installed. The support rod 720 is, for example, a compression support rod 720, which can drive the protective plate 600 to switch between a vertical position and a horizontal position.

[0072] In one embodiment of the present invention, a locking pin 830 is provided on the angle steel 730, and a locking hole that can match the locking pin 830 is provided on the protective plate 600. When the protective plate 600 is in a vertical position, the locking pin 830 and the locking hole form a lock.

[0073] like Fig.13 As shown, a locking pin 830 is provided on the angle steel 730. When the protective plate 600 is in a vertical position, the protective plate 600 is locked by the locking pin 830. Specifically, a mounting seat is provided on the angle steel 730, and the locking pin 830 is fixed to the mounting seat by a nut through a self-threaded structure. Specifically, the locking pin 830 is, for example, a manual knob structure, which can control the extension and retraction of the locking pin 830. When the protective plate 600 is in a vertical position, the locking pin 830 is inserted into the locking hole to prevent the protective plate 600 from accidentally moving.

[0074] Alternatively, see Fig.14 In order to prevent the protective plate 600 from accidentally moving, a retaining spring 610 is provided in the gap between the protective plate 600 and the side beam 800 for locking. There may be multiple retaining springs 610, and the multiple retaining springs 610 are arranged at intervals in the X-axis direction. In one embodiment of the present application, a plurality of mounting holes are provided in the side beam 800, and the plurality of mounting holes are spaced apart along the X-axis direction. A through hole matching the mounting hole is provided on the box to be transported, and the box to be transported is connected to the side beam 800 by a detachable bolt assembly 640. In this way, the bolt assembly 640 can be reused, thereby reducing transportation costs.

[0075] Furthermore, if Fig.15As shown, in order to prevent friction between the box body 620 and the side beam 800 , a rubber plate 630 is disposed between the bolt assembly 640 and the side beam 800 .

[0076] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A middle beam, characterized in that: include: An upper cover plate, a lower cover plate arranged relative to the upper cover plate and spaced apart from the upper cover plate, and a web plate arranged in pairs between the upper cover plate and the lower cover plate, wherein the upper cover plate, the lower cover plate and the web plate form a cavity. The upper cover plate is provided with a first opening, and the first opening is communicated with the cavity. A second opening is provided at a position of the web corresponding to the first opening, and the first opening is connected to the second opening at the top and the bottom, so that a part of the goods to be transported can fall into the lower part of the middle beam through the first opening and the second opening.

2. The center beam according to claim 1, characterized in that: The upper cover plate includes a cover plate body and a wing plate, wherein the wing plate is formed by extending from the side wall of the cover plate body; The first opening includes a first section and a second section, the first section is located on the cover plate body, the second section is located on the two wing plates respectively, and the mouth of the second opening is aligned with the position where the first section and the second section are connected.

3. The center beam according to claim 2, characterized in that: The first section is disposed perpendicular to the second section.

4. The center beam according to claim 3, characterized in that: Two vertical plates are vertically arranged on the outer wall of the web, and the two vertical plates are arranged on both sides of the second opening. The upper end surfaces of the vertical plates are connected to the wing plates, and the lower end surfaces of the vertical plates extend to the lower cover plate. A connecting plate is fixed to the lower surface of the wing plate away from the second section, and the two ends of the connecting plate are respectively connected to the two vertical plates. The vertical plates and the connecting plates are arranged outside the second section and the second opening.

5. The center beam according to claim 4, characterized in that: The end of the vertical plate away from the upper cover plate forms a concave arc surface.

6. The center beam according to claim 4, characterized in that: A reinforcing portion is fixed on a surface of each of the vertical plates away from the second opening, wherein the reinforcing portion comprises a plurality of ribs that are parallel to each other and spaced apart along the z-axis direction; Each of the ribs extends from the vertical plate to the web.

7. The center beam according to claim 6, characterized in that: The rib plate is provided with a cambered transition portion, the vertical plate and the web plate have a connection position, and the cambered transition portion is opposite to the connection position.

8. The center beam according to claim 3, characterized in that: The thickness of the wing plate gradually increases from both ends to the middle.

9. An underframe of a railway vehicle, characterized in that: The invention comprises the middle beam according to any one of claims 1 to 8, end beams respectively connected to two ends of the middle beam, and side beams connecting the two end beams, A bolster is also fixed on the center beam, and the first opening is spaced apart from the position where the bolster is located.

10. The chassis according to claim 9, characterized in that A counterweight assembly is also provided, and the counterweight assembly is arranged on the end beam and / or the middle beam.

11. The chassis according to claim 10, characterized in that A brake assembly is suspended at the lower part of the base frame, and the first opening is located between the bolster and the brake assembly.

12. The chassis according to claim 10, characterized in that It also includes a protection plate, which is rotatably connected to the side beam.

13. The chassis according to claim 12, characterized in that On the side beam and the protective plate, one is provided with a locking pin, and the other is provided with a locking hole matched with the locking pin. When the protective plate is located in a vertical position, the locking pin and the locking hole form a locking state.

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