Sand box mounting structure and sanding system

Abstract

The invention discloses a sand box mounting structure and a sanding system, and relates to the technical field of vehicle engineering. In the sand box mounting structure, a camber beam comprises a camber beam web and a camber beam bottom plate, and the camber beam bottom plate is sequentially provided with a camber beam flat plate and a camber beam arc-shaped plate in the direction close to a second longitudinal beam; the hanging structure is fixed to the top of the sand box and comprises a first lifting lug and a second lifting lug which are arranged in the transverse direction, the top of the first lifting lug penetrates through and is fixed to the camber beam web, the top of the first lifting lug is located over the camber beam arc-shaped plate, and the top of the second lifting lug is fixed to the camber beam flat plate. At the moment, the first lifting lug is located over the camber beam arc-shaped plate, the sand box is hung in the mode that the first lifting lug penetrates through the camber beam web fixed to the camber beam, direct connection of the camber beam arc-shaped plate can be avoided, the vertical space, where the camber beam arc-shaped plate is located, of the camber beam is fully utilized, the second lifting lug is fixed to the camber beam flat plate, the camber beam flat plate is directly utilized, and therefore the camber beam flat plate can be directly used. And the assembly difficulty can be reduced, and the application of the camber beam in sand box hanging is realized.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle engineering, and in particular to a sand box installation structure and a sand spreading system. Background Art

[0002] In EMUs, the sand spreading system includes a sand box, the top of which is usually suspended and connected to the bottom of the car body. In traditional technology, the top of the sand box is flat and is installed on the flat bottom area of ​​the car body. However, for some uneven areas on the bottom of the car body, such as curved beams with curved and flat surfaces on the bottom of the car body, the curved surface is difficult to use for hanging and the assembly is difficult. Usually, the curved beam is avoided during sand box assembly, which limits the application of the curved beam in sand box assembly.

[0003] Therefore, how to apply the bent beam to the assembly of the sand box is a technical problem that those skilled in the art need to solve at present. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a sand box installation structure and a sand spreading system, which can enable the curved beam to be used in the assembly of the sand box.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A sand box installation structure comprises: a vehicle body underframe, the vehicle body underframe comprises a bent beam, a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam extend longitudinally and are arranged in sequence in the transverse direction, two ends of the bent beam are respectively connected to the first longitudinal beam and the second longitudinal beam, the bent beam comprises a bent beam web and a bent beam bottom plate fixed under the bent beam web, the bent beam bottom plate has a bent beam flat plate and a bent beam arc plate in sequence along the direction close to the second longitudinal beam; a sand box; a hanging structure fixed to the top of the sand box, the hanging structure comprises a first lifting ear and a second lifting ear arranged in the transverse direction, the top of the first lifting ear penetrates and is fixed to the bent beam web, and the top of the first lifting ear is located directly above the bent beam arc plate, and the top of the second lifting ear is fixed to the bent beam flat plate.

[0007] Preferably, the vehicle body frame also includes a cross beam, and the bent beam and the cross beam are arranged in sequence along the longitudinal direction; the two ends of the cross beam are respectively fixed to the first longitudinal beam and the second longitudinal beam; the bottom of the cross beam is a cross beam bottom plate, and the cross beam bottom plate includes a cross beam flat plate; the top of the second lifting ear is fixed to the bottom surface of the bent beam flat plate and the bottom surface of the cross beam flat plate at the same time.

[0008] Preferably, the first lifting ear includes a first transition beam and two first support seats; the first transition beam passes through the bent beam web; the two first support seats are respectively located on both sides of the bent beam web in the longitudinal direction, and are fixedly connected to the first transition beam and the bent beam web.

[0009] Preferably, the first lifting ear also includes two first lifting arms, the bottom ends of the two first lifting arms are fixed to the top of the sand box, and the two ends of the first transition beam respectively extend out of the two edges of the first bottom plate in the longitudinal direction to respectively form two protruding parts; the top ends of the two first lifting arms are respectively fixedly connected to the bottom of the two protruding parts.

[0010] Preferably, the second lifting ear comprises a second transition beam, the second transition beam comprises a second U-shaped beam, the opening of the second U-shaped beam faces the direction away from the first lifting ear in the transverse direction, and the top of the second U-shaped beam is fixed to the curved beam plate and the cross beam plate at the same time.

[0011] Preferably, the second lifting ear also includes two second lifting arms, the bottom ends of the two second lifting arms are fixed to the top of the sand box, the top end of one second lifting arm is fixed to the part of the second transition beam directly below the bending beam plate, and the top end of the other second lifting arm is fixed to the part of the second transition beam located between the bending beam plate and the cross beam.

[0012] A sand spreading system comprises an equipment cabin and a sand box mounting structure, wherein the sand box mounting structure is the above-mentioned sand box mounting structure; the sand box is arranged in the equipment cabin, and part of the outer wall of the equipment cabin is recessed inward along one side in the longitudinal direction to form an avoidance groove; the sand box is connected to a sand spreading pipeline system, and the sand spreading pipeline system extends to the avoidance groove along the transverse direction through the inside of the equipment cabin; the bottom of the avoidance groove is a bottom opening formed by a through setting, and one side in the longitudinal direction is a lateral opening formed by a through setting.

[0013] Preferably, the sand-spreading pipeline system includes a pipe body, which includes a sand-spreading rigid pipe and a sand-spreading hose connected to one end of the sand-spreading rigid pipe, the other end of the sand-spreading rigid pipe is connected to the sand box, the sand-spreading rigid pipe is built into the equipment cabin, the sand-spreading hose is placed outside the equipment cabin and at least part of its structure is located in the avoidance groove.

[0014] Preferably, a pipeline hole is opened on the equipment cabin; the pipe body also includes a connecting pipe connected between the sand-spreading hard pipe and the sand-spreading hose; the connecting pipe includes a connecting hose, a second nut, a third nut, a joint body and a joint nut; one end of the sand-spreading hard pipe is connected to the sand box through a first nut, and the other end is connected to the second nut through the connecting hose, the joint body is penetrated through the pipeline hole, and is clamped to the skeleton of the equipment cabin through the third nut and the boss on the joint body, one end of the joint body is connected to the second nut, and the other end is connected to the joint nut, and the joint nut is fixed to one end of the sand-spreading hose.

[0015] Preferably, the top of the avoidance groove is also connected to an anti-slip structure, and the bottom of the anti-slip structure is connected to the sand spreading pipeline system.

[0016] The sand box installation structure provided by the present invention includes: a vehicle body underframe, the vehicle body underframe includes a bent beam, a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam extend longitudinally and are arranged in sequence in the transverse direction, the two ends of the bent beam are respectively connected to the first longitudinal beam and the second longitudinal beam, the bent beam includes a bent beam web and a bent beam bottom plate fixed under the bent beam web, the bent beam bottom plate has a bent beam flat plate and a bent beam arc plate in sequence along the direction close to the second longitudinal beam; a sand box; a hanging structure fixed to the top of the sand box, the hanging structure includes a first lifting ear and a second lifting ear arranged in the transverse direction, the top of the first lifting ear passes through and is fixed to the bent beam web, and the top of the first lifting ear is located directly above the bent beam arc plate, and the top of the second lifting ear is fixed to the bent beam flat plate.

[0017] In this sand box installation structure, the sand box has a first lifting ear and a second lifting ear. The first lifting ear is located directly above the curved plate of the bent beam, and the sand box is hung by penetrating the web of the bent beam fixed on the bent beam. While avoiding direct connection to the curved plate of the bent beam, the vertical space on the bent beam where the curved plate of the bent beam is located is fully utilized. The second lifting ear is fixed on the flat plate of the bent beam, and the flat plate of the bent beam is directly utilized, which can reduce the difficulty of assembly, realize the application of the bent beam in the hanging of the sand box, and improve the flexibility of position selection in the sand box assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a specific embodiment 1 of the sand box installation structure provided by the present invention;

[0020] Figure 2 It is a structural schematic diagram of the first lifting ear in the specific embodiment 1 of the sand box installation structure provided by the present invention;

[0021] Figure 3 It is a structural schematic diagram of the first perspective of the connection between the first lifting ear and the curved beam in the specific embodiment 1 of the sand box installation structure provided by the present invention;

[0022] Figure 4 It is a second perspective structural schematic diagram of the connection between the first lifting ear and the curved beam in the specific embodiment 1 of the sand box installation structure provided by the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the connection between the first lifting ear, the second lifting ear and the curved beam in the specific embodiment 1 of the sand box installation structure provided by the present invention;

[0024] Figure 6 This is a schematic diagram of the structure in which the first lifting ear, the second lifting ear, the curved beam and the cross beam are connected in the specific embodiment 1 of the sand box installation structure provided by the present invention;

[0025] Figure 7 This is a structural schematic diagram of a specific embodiment 1 of the sand spreading system provided by the present invention;

[0026] Figure 8 It is a partial structural schematic diagram of a specific embodiment 1 of the sand spreading system provided by the present invention;

[0027] Fig. 9 This is a schematic diagram of the structure outside the equipment cabin in the specific embodiment 1 of the sand spreading system provided by the present invention;

[0028] Fig.10 This is a schematic diagram of the structure in the equipment cabin in the first specific embodiment of the sand spreading system provided by the present invention;

[0029] Fig.11 This is a schematic structural diagram of the pipe body portion in a specific embodiment 1 of the sand spreading system provided by the present invention;

[0030] Fig.12 It is a structural schematic diagram of the anti-slip structure in the specific embodiment 1 of the sand spreading system provided by the present invention.

[0031] Reference numerals:

[0032] First longitudinal beam 1;

[0033] Second longitudinal beam 2;

[0034] Cross beam 3, cross beam bottom plate 31, cross beam flat plate 311;

[0035] A bent beam 4, a bent beam bottom plate 41, a bent beam arc plate 411, a bent beam flat plate 412, and a bent beam web plate 42;

[0036] The first lifting lug 5, the first transition beam 51, the first beam vertical plate 511, the first beam bottom plate 512, the extension portion 5121, the first hanging arm 52, the first supporting seat 53, the first seat vertical plate 531, and the first seat horizontal plate 532;

[0037] A second lifting lug 6, a second transition beam 61, a second U-shaped beam 611, an outer U-shaped beam 612, and a second lifting arm 62;

[0038] Sand box 7;

[0039] Equipment cabin 8, avoidance groove 81, groove top surface 811, first groove side surface 812, second groove side surface 813, third groove side surface 814, bottom opening 815, lateral opening 816, skirt plate sand level observation window 82, skirt plate sand injection port 83, pipeline hole 84;

[0040] Sand spreading pipeline system 9, sand spreading hard pipe 91, sand spreading hose 92, connecting hose 93, first nut 94, second nut 95, third nut 96, joint body 97, joint nut 98;

[0041] Anti-slip structure 10, steel wire rope 101, top pulley 102, pipe clamp 103, bottom pulley 1031, pipe sleeve 1032;

[0042] Car body underframe 11;

[0043] X for horizontal direction and Y for vertical direction. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The core of the present invention is to provide a sand box installation structure and a sand spreading system, which can enable the curved beam to be used in the assembly of the sand box.

[0046] A specific embodiment 1 of the sand box installation structure provided by the present invention is applied to an EMU and can be specifically arranged under the body of the EMU.

[0047] Please refer to Figures 1 to 12 The sand box installation structure includes a vehicle body chassis 11, a sand box 7 and a hanging structure.

[0048] like Figure 1 and Figure 7As shown, the vehicle body underframe 11 includes a curved beam 4, a cross beam 3, and a first longitudinal beam 1 and a second longitudinal beam 2. The first longitudinal beam 1 and the second longitudinal beam 2 extend along the longitudinal direction Y and are arranged in sequence along the transverse direction X. The first longitudinal beam 1 is a side beam, of which two are specifically provided. The second longitudinal beam 2 is a traction beam, which is located between the two side beams in the transverse direction X. The curved beam 4 and the cross beam 3 are arranged in sequence along the longitudinal direction Y. The two ends of the curved beam 4 are respectively connected to the first longitudinal beam 1 and the second longitudinal beam 2, and the two ends of the cross beam 3 are respectively connected to the first longitudinal beam 1 and the second longitudinal beam 2.

[0049] like Figure 1 As shown, one end of the curved beam 4 is welded to the side beam, and the other end is welded to the traction beam. The overall structure is inclined downward, and the end close to the side beam is the high end, and the end close to the traction beam is the low end. The top surface of the curved beam 4 is a plane, specifically an inclined surface, and the bottom surface of the curved beam 4 is a surface in the form of a combination of a plane and an arc surface. Specifically, the curved beam 4 is an I-beam, which includes, from top to bottom, a curved beam top plate, a curved beam web 42 fixed under the curved beam top plate, and a curved beam bottom plate 41 fixed under the curved beam web 42. The top surface of the curved beam top plate is the top surface of the curved beam 4, and the bottom surface of the curved beam bottom plate 41 is the bottom surface of the curved beam 4.

[0050] Among them, Figure 3 As shown, the curved beam bottom plate 41 has a curved beam flat plate 412 and a curved beam arc plate 411 in sequence along the direction close to the second longitudinal beam 2. The bottom surface of the curved beam arc plate 411 is a curved surface structure. Considering that the curved surface structure is not conducive to setting the hanging point, the vertical surface of the curved beam web plate 42 with a vertical surface above it is used as the installation surface, so as to serve as a partial installation point of the hanging structure on the curved beam 4.

[0051] like Figure 5 As shown, the top of the sand box 7 is fixedly connected to the hanging structure, so as to be hung and fixed to the vehicle body chassis 11 through the hanging structure. Among them, in the vehicle, according to the functional requirements of the vehicle, the sand box 7 needs to be arranged near the bogie and in the equipment compartment 8 outside the pillow.

[0052] Among them, Figure 1 , Figure 3 and Figure 5 As shown, the hanging structure includes a first hanging ear 5 and a second hanging ear 6 arranged in the transverse direction X. The top of the first hanging ear 5 penetrates and is fixed on the curved beam web 42, and the top of the first hanging ear 5 is located directly above the curved beam arc plate 411. The top of the second hanging ear 6 is fixed to the curved beam flat plate 412, specifically directly connected to the bottom of the curved beam flat plate 412. Figure 6 As shown, the sand box 7 is generally located directly below the bending beam 4, and the first lifting ear 5 and the second lifting ear 6 extend to both sides of the sand box 7 in the transverse direction X respectively. Specifically, they can extend upward from the connection point with the sand box 7 and continuously move away from the direction of the sand box 7 in the transverse direction X.

[0053] In this sand box installation structure, the sand box 7 has a first lifting ear 5 and a second lifting ear 6. The first lifting ear 5 is located directly above the curved plate 411 of the bent beam, and the sand box 7 is hung by penetrating the curved beam web 42 fixed on the curved beam 4. While avoiding direct connection to the curved plate 411 of the bent beam, the vertical space on the curved beam 4 where the curved plate 411 of the bent beam is located is fully utilized. The second lifting ear 6 is fixed on the curved beam flat plate 412, and the curved beam flat plate 412 is directly utilized, which can reduce the difficulty of assembly and realize the application of the curved beam 4 in the hanging of the sand box 7.

[0054] In order to meet the requirements of suspension strength and rigidity and further improve the reliability of the suspension structure, the cross beam 3 with a flat bottom in the vehicle body underframe 11 can also be used. Figure 1 , Figure 3 and Figure 6 As shown, the bottom of the cross beam 3 is a cross beam bottom plate 31, and the cross beam bottom plate 31 includes a cross beam flat plate 311. The top of the second lifting eye 6 is fixed to the bottom surface of the curved beam flat plate 412 and the bottom surface of the cross beam flat plate 311. At this time, there are different connection points between the second lifting eye 6 and the vehicle body underframe 11, and the second lifting eye 6 is lifted by the cross beam 3 and the curved beam 4 at the same time, which can improve the stability of the connection.

[0055] Among them, two sand boxes 7 are sequentially arranged between the two side beams along the transverse direction X. Specifically, a sand box 7 can be respectively arranged on both sides of the traction beam in the transverse direction X and between the two side beams, and the sand boxes 7 on both sides of the traction beam can be specifically arranged symmetrically, and the hanging structures connected to the sand boxes 7 on both sides of the traction beam can also be arranged symmetrically.

[0056] In the first lifting lug 5, as Figures 1 to 5 As shown, the first lifting eye 5 includes a first transition beam 51 , two first support seats 53 and two first lifting arms 52 .

[0057] Specifically, the first transition beam 51 passes through the curved beam web 42 , and can be inserted into an oblong hole provided on the curved beam web 42 .

[0058] The first transition beam 51 is a first U-shaped beam, and the U-shaped opening of the first U-shaped beam faces upward to ensure the structural strength of the first transition beam 51. Figure 2 and Figure 4As shown, the first U-shaped beam includes a first beam bottom plate 512 and two first beam vertical plates 511 fixed above the first beam bottom plate 512. The two first beam vertical plates 511 are located at the edge of the first beam bottom plate 512 in the transverse direction X, and the first support seat 53 is connected to the first beam bottom plate 512. At this time, the parts of the first transition beam 51 located on both sides of the curved beam web 42 in the longitudinal direction Y can provide hanging points respectively to connect different first hanging arms 52 respectively. Each first hanging arm 52 is simultaneously connected to the top of a sand box 7, which can ensure the hanging stiffness. Of course, in other embodiments, the first transition beam 51 can also be directly set as a flat plate structure.

[0059] In addition, if Figure 2 and Figure 4 As shown, the two first support seats 53 are respectively located on both sides of the curved beam web 42 in the longitudinal direction Y, and are both fixedly connected to the first transition beam 51 and the curved beam web 42 to further ensure the structural strength.

[0060] Specifically, Figure 2 and Figure 4 As shown, the first support seat 53 is an L-shaped material, including a first seat upright plate 531 and a first seat cross plate 532 located at the top of the first seat upright plate 531, and the first support seat 53 can be formed in one piece. The first seat upright plate 531 is attached and riveted to the side of the curved beam web 42, and the first seat cross plate 532 is attached and bolted to the bottom of the first transition beam 51, which can ensure the connection stiffness between the first suspension arm 52 and the first transition beam 51 and the curved beam 4, and the riveting method can avoid the weld bearing force caused by welding, and can achieve a lightweight design while meeting the hanging requirements. In addition, the bottom of the first seat upright plate 531 can also abut the top surface of the curved beam bottom plate 41, so as to improve the structural strength with the support of the curved beam bottom plate 41.

[0061] Specifically, Figure 4 and Figure 6 As shown, the bottom ends of the two first suspension arms 52 are fixed to the top of the flask 7. The two ends of the first transition beam 51 extend out of the two edges of the first bottom plate in the longitudinal direction Y to form two extension portions 5121. Specifically, the extension portions 5121 are located on the first beam bottom plate 512, and the top ends of the two first suspension arms 52 are fixedly connected to the bottom of the two extension portions 5121, and can be bolted. The provision of the extension portions 5121 can facilitate the connection between the first suspension arm 52 and the first transition beam 51, and simplify the shape of the first suspension arm 52.

[0062] In the second lifting lug 6, as Figures 1 to 6 As shown, the second lifting eye 6 includes a second transition beam 61 and two second lifting arms 62. To achieve a lightweight structure, the first lifting eye 5 and the second lifting eye 6 can be made of aluminum alloy, and in other embodiments, can also be made of stainless steel.

[0063] Specifically, Figure 1 , Figure 5 and Figure 6 As shown, the second transition beam 61 includes a second U-shaped beam 611, and the opening of the second U-shaped beam 611 faces the direction away from the first lifting ear 5 in the transverse direction X. The top of the second U-shaped beam 611 is fixed to the curved beam plate 412 and the cross beam plate 311 at the same time, and the plane at the bottom of the curved beam 4 and the plane at the bottom of the cross beam 3 jointly provide an installation plane for the second transition beam 61.

[0064] There may be a height difference between the bottom surface of the curved beam plate 412 and the bottom surface of the cross beam 3, such as Figure 3 and Figure 6 As shown, the bottom surface of the cross beam 3 is higher than the bottom surface of the bent beam plate 412. At this time, a layer of outer U-shaped beam 612 with the same opening direction is fixedly arranged on the outer side of the second U-shaped beam 611 and directly below the cross beam 3, so that the top surface of the second transition beam 61 forms an uneven step surface, which respectively adapts to the height of the bottom surface of the bent beam plate 412 and the bottom surface of the cross beam 3, so that the second U-shaped beam 611 is generally maintained at a set height. For example, with the first longitudinal beam 1 as a reference, the extension direction of the second U-shaped beam 611 is parallel to the extension direction of the first longitudinal beam 1.

[0065] Specifically, Figure 5 and Figure 6 As shown, the bottom ends of the two second hanging arms 62 are fixed to the top of the sand box 7. Among the two second hanging arms 62, the top end of one second hanging arm 62 is fixed to the portion of the second transition beam 61 directly below the curved beam plate 412, and the top end of the other second hanging arm 62 is fixed to the portion of the second transition beam 61 directly below the portion between the curved beam plate 412 and the cross beam 3, so as to balance the forces at various locations of the second transition beam 61.

[0066] In addition to the above-mentioned sand box installation structure, the present invention also provides a sand spreading system, which includes an equipment cabin 8 and a sand box installation structure. The sand box installation structure can specifically be the sand box installation structure provided in any of the above embodiments, and the beneficial effects can be referred to the above embodiments accordingly.

[0067] like Figures 7 to 12 As shown, the equipment cabin 8 is connected to the bottom of the vehicle body frame 11, and a sand box installation structure is arranged in the equipment cabin 8. Figure 7 As shown, the sand box 7 is arranged in the equipment cabin 8, and part of the outer wall of the equipment cabin 8 is recessed inward along one side in the longitudinal direction Y to form an avoidance groove 81, which can fully utilize the space in the transverse direction X below the vehicle body frame 11.

[0068] Specifically, the sand box 7 has a sand spreading unit and is connected to a sand spreading pipeline system 9, and the sand spreading unit is arranged in the equipment cabin 8. The sand spreading pipeline system 9 extends from the inside of the equipment cabin 8 along the horizontal direction X to the avoidance groove 81. Figure 7 and Fig. 9 As shown, the bottom of the avoidance groove 81 is a bottom opening 815 formed by a through arrangement, and one side in the longitudinal direction Y is a lateral opening 816 formed by a through arrangement, so as to avoid the part of the sand spreading pipe system 9 extending out of the equipment cabin 8. The remaining directions of the avoidance groove 81 can have groove surfaces respectively, including a groove top surface 811, a first groove side surface 812 arranged in sequence in the transverse direction X, a second groove side surface 813 and a third groove side surface 814 at one end in the longitudinal direction Y. The sand spreading pipe system 9 extends into the avoidance groove 81 from the inside of the equipment cabin 8 through the first groove side surface 812, and can extend out of the avoidance groove 81 through the bottom opening 815 and / or the lateral opening 816.

[0069] Specifically, the sand spreading pipeline system 9 includes a pipe body, which includes a sand spreading hard pipe 91 and a sand spreading hose 92 connected to one end of the sand spreading hard pipe 91, and the other end of the sand spreading hard pipe 91 is connected to the sand box 7. The sand spreading hard pipe 91 is built into the equipment cabin 8, and the sand spreading hard pipe 91 is specifically a steel pipe, which can be in the shape of a curved pipe to meet the installation orientation requirements. The sand spreading hose 92 is placed outside the equipment cabin 8 and at least part of the structure is located in the avoidance groove 81. Due to the relative movement between the bogie and the car body chassis 11, there is usually relative movement between the sand spreading unit sand outlet on the sand box 7 side and the sand spreading outlet on the bogie side. At the same time, the bogie has a variety of working conditions during operation. By setting the part of the pipe outside the equipment cabin 8 as the sand spreading hose 92 to connect between the sand box 7 and the bogie, the movement requirements between the bogie and the car body chassis 11 can be ensured, which is conducive to the flow of sand from the sand box end sand spreading outlet to the bogie sand spreading outlet, and the sand spreading performance is guaranteed.

[0070] Among them, since the sanding hose 92 is in a swinging state during the operation of the vehicle, under various working conditions of the bogie, the sanding hose 92 and the surrounding equipment compartment 8 and other parts are prevented from being worn, so that the sanding hose 92 can adapt to various motion conditions of the bogie. When designing the avoidance groove 81, the activity state of the sanding hose 92 between the sand outlet of the equipment compartment and the sand outlet of the bogie can be simulated in advance to determine the length of the sanding hose 92 and the space occupied by the sanding hose 92. For example, ensure that the height difference between the two ends of the sanding hose 92 meets the state of bogie wheel rim wear and air spring deflating, determine that the length of the sanding hose 92 ranges from 700mm to 800mm, and then determine the shape and size of the avoidance groove 81. In addition, during the connection process of the sanding hose 92, in the avoidance groove 81, the sanding hose 92 is in a C-shaped structure and gradually droops downward, which is conducive to spraying sand on the rail surface.

[0071] Specifically, Figures 9 to 11As shown, a pipeline hole 84 is provided on the equipment cabin 8 for the pipe body to pass through. The pipe body also includes a connecting pipe connected between the sand spreading hard pipe 91 and the sand spreading hose 92, and the connecting pipe includes a connecting hose 93, a second nut 95, a third nut 96, a joint body 97 and a joint nut 98. The connecting hose 93 is specifically a rubber hose.

[0072] Among them, one end of the sand-spreading hard pipe 91 is threadedly connected to the sand box 7 through the first nut 94, and is specifically installed at the sand outlet of the sand-spreading unit of the sand box 7. The other end of the sand-spreading hard pipe 91 is connected to the second nut 95 through the connecting hose 93, and the connecting hose 93 plays an installation and adjustment role. The joint body 97 is penetrated on the pipeline hole 84, and is clamped by the third nut 96 and the boss on the joint body 97 to be fixed to the skeleton of the equipment cabin 8. The third nut 96 is located on the inner side of the equipment cabin 8. At this time, the joint body 97 passes through the skeleton of the equipment cabin 8 and is installed on the skeleton of the equipment cabin 8 in the equipment cabin 8 through the third nut 96, and one end of the joint body 97 is threadedly connected to the second nut 95. The other end of the joint body 97, that is, one end outside the equipment cabin 8, is threadedly connected to the joint nut 98, and the joint nut 98 is fixed to one end of the sand-spreading hose 92, thereby realizing the fixed connection and communication between the sand-spreading hose 92 and the sand-spreading hard pipe 91.

[0073] Since in the connecting pipe, except for the joint nut 98, the other fasteners or connectors are built into the equipment cabin 8, the risk of fasteners or connectors at the sand spreading unit falling off outside the equipment cabin 8 can be avoided. During the assembly process, except for the joint nut 98, the rest of the parts can be pre-installed in the equipment cabin 8, which solves the problem of first installing the equipment cabin frame on the vehicle during the construction process and then installing the sand spreading hose 92.

[0074] In order to ensure the reliability of the connection of the part of the sand spreading pipeline system 9 outside the equipment cabin, an anti-slip structure 10 is also provided in the avoidance groove 81. The top of the avoidance groove 81 is connected to the top of the anti-slip structure 10, and the bottom of the anti-slip structure 10 is connected to the sand spreading pipeline system 9. The anti-slip structure 10 is specifically used to suspend the sand spreading hose 92.

[0075] Specifically, Fig. 9 As shown, the top of the anti-slip structure 10 is fixed to the top surface 811 of the groove. The anti-slip structure 10 may include a connector as the main suspension structure, specifically a flexible connector, which may also be a steel wire rope 101 or a chain. Fig.12As shown, the top of the anti-slip structure 10 is provided with a top pulley 102, and the bottom is provided with a pipe clamp 103, the pipe clamp 103 includes a bottom pulley 1031 and a plurality of pipe sleeves 1032, and the connecting piece is connected between the top pulley 102 and the bottom pulley 1031. Among them, the top pulley 102 is connected to the top surface 811 of the groove, and can be specifically bolted to the pulley mounting seat on the top surface 811 of the groove. Each sanding hose 92 is respectively connected to each pipe sleeve 1032, and the bottom pulley 1031 is bolted to the pipe sleeve 1032. The top pulley 102 and the bottom pulley 1031 can ensure the freedom of movement of the pipeline, so that this anti-slip structure 10 can not only adapt to the swing of the sanding hose 92 during the operation of the vehicle, but also play an anti-slip effect.

[0076] The sand spreading system in this embodiment is applied to EMUs, and the sand box 7 is installed in the equipment cabin 8. The installation method of the sand box 7 is a cantilever structure on both sides, which adapts to the form of the curved beam 4 of the car body chassis 11. The cantilever structure can achieve maximum lightweight while meeting the requirements of hanging the sand box 7; in the sand spreading pipeline system 9, a sand spreading hose 92 is used to connect between the sand spreading port of the bogie and the sand spreading port of the sand box 7 at the car body end. The sand spreading hose 92 can meet various swinging conditions of the bogie during vehicle operation, and the setting of the avoidance space can ensure the range of movement of the sand spreading hose 92.

[0077] It should be noted that when an element is referred to as "fixed" to another element, it may be directly on the other element or there may be an element in the middle. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element in the middle. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", "multiple groups" mean two or more.

[0078] The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0079] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] The above is a detailed introduction to the sand box installation structure and sand spreading system provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A sand box installation structure, characterized in that: include: A vehicle body underframe (11), the vehicle body underframe (11) comprising a bent beam (4), a first longitudinal beam (1) and a second longitudinal beam (2), the first longitudinal beam (1) and the second longitudinal beam (2) extending in a longitudinal direction (Y) and arranged in sequence in a transverse direction (X), the two ends of the bent beam (4) being respectively connected to the first longitudinal beam (1) and the second longitudinal beam (2), the bent beam (4) comprising a bent beam web (42) and a bent beam bottom plate (41) fixed below the bent beam web (42), the bent beam bottom plate (41) having a bent beam flat plate (412) and a bent beam arc plate (411) in sequence along a direction close to the second longitudinal beam (2); Sand box (7); A hanging structure is fixed to the top of the sand box (7), and the hanging structure includes a first hanging ear (5) and a second hanging ear (6) arranged along the transverse direction (X), the top of the first hanging ear (5) passes through and is fixed on the web of the bent beam (42), and the top of the first hanging ear (5) is located directly above the curved plate (411) of the bent beam, and the top of the second hanging ear (6) is fixed to the flat plate (412) of the bent beam.

2. The flask installation structure according to claim 1, characterized in that: The vehicle body underframe (11) further comprises a crossbeam (3), wherein the curved beam (4) and the crossbeam (3) are arranged in sequence along the longitudinal direction (Y); the two ends of the crossbeam (3) are respectively fixed to the first longitudinal beam (1) and the second longitudinal beam (2); the bottom of the crossbeam (3) is a crossbeam bottom plate (31), and the crossbeam bottom plate (31) comprises a crossbeam flat plate (311); the top of the second lifting lug (6) is simultaneously fixed to the bottom surface of the curved beam flat plate (412) and the bottom surface of the crossbeam flat plate (311).

3. The flask installation structure according to claim 2, characterized in that: The first lifting lug (5) comprises a first transition beam (51) and two first support seats (53); the first transition beam (51) passes through the curved beam web (42); the two first support seats (53) are respectively located on both sides of the curved beam web (42) in the longitudinal direction (Y), and are both fixedly connected to the first transition beam (51) and the curved beam web (42).

4. The flask installation structure according to claim 3, characterized in that: The first lifting ear (5) further comprises two first lifting arms (52), the bottom ends of the two first lifting arms (52) being fixed to the top of the sand box (7), and the two ends of the first transition beam (51) respectively extending out from the two edges of the first bottom plate in the longitudinal direction (Y) to respectively form two extending portions (5121); the top ends of the two first lifting arms (52) are respectively fixedly connected to the bottom of the two extending portions (5121).

5. The flask installation structure according to claim 2, characterized in that: The second lifting eye (6) comprises a second transition beam (61), the second transition beam (61) comprises a second U-shaped beam (611), the opening of the second U-shaped beam (611) faces in the direction away from the first lifting eye (5) in the transverse direction (X), and the top of the second U-shaped beam (611) is fixed to both the curved beam plate (412) and the cross beam plate (311).

6. The flask installation structure according to claim 5, characterized in that: The second lifting ear (6) further comprises two second lifting arms (62), the bottom ends of the two second lifting arms (62) being fixed to the top of the sand box (7), the top end of one second lifting arm (62) being fixed to a portion of the second transition beam (61) directly below the curved beam plate (412), and the top end of the other second lifting arm (62) being fixed to a portion of the second transition beam (61) directly below the portion between the curved beam plate (412) and the cross beam (3).

7. A sand spreading system, characterized in that: The invention comprises an equipment cabin (8) and a sand box installation structure, wherein the sand box installation structure is the sand box installation structure according to any one of claims 1 to 6; the sand box (7) is arranged in the equipment cabin (8), and part of the outer wall of the equipment cabin (8) is recessed inward along one side in the longitudinal direction (Y) to form an avoidance groove (81); the sand box (7) is connected to a sand spreading pipeline system (9), and the sand spreading pipeline system (9) extends from the inside of the equipment cabin (8) along the transverse direction (X) to the avoidance groove (81); the bottom of the avoidance groove (81) is a bottom opening (815) formed by a through arrangement, and one side in the longitudinal direction (Y) is a lateral opening (816) formed by a through arrangement.

8. The sand spreading system according to claim 7, characterized in that: The sand spreading pipeline system (9) comprises a pipe body, wherein the pipe body comprises a sand spreading hard pipe (91) and a sand spreading hose (92) connected to one end of the sand spreading hard pipe (91), the other end of the sand spreading hard pipe (91) is connected to the sand box (7), the sand spreading hard pipe (91) is built into the equipment cabin (8), and the sand spreading hose (92) is placed outside the equipment cabin (8) and at least part of its structure is located in the avoidance groove (81).

9. The sand spreading system according to claim 8, characterized in that: The equipment cabin (8) is provided with a pipeline hole (84); the pipe body also includes a connecting pipe connected between the sand-spreading hard pipe (91) and the sand-spreading hose (92); the connecting pipe includes a connecting hose (93), a second nut (95), a third nut (96), a joint body (97) and a joint nut (98); one end of the sand-spreading hard pipe (91) is connected to the sand box (7) through the first nut (94), and the other end is connected to the second nut (95) through the connecting hose (93); the joint body (97) passes through the pipeline hole (84) and is clamped to the frame of the equipment cabin (8) through the third nut (96) and the boss on the joint body (97); one end of the joint body (97) is connected to the second nut (95), and the other end is connected to the joint nut (98); the joint nut (98) is fixed to one end of the sand-spreading hose (92).

10. The sand spreading system according to claim 7, characterized in that: The top of the avoidance groove (81) is also connected to an anti-slip structure (10), and the bottom of the anti-slip structure (10) is connected to the sand spreading pipeline system (9).

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