Sand box mounting structure and sanding system

Abstract

The application discloses a sand box mounting structure and a sand scattering system, and relates to the technical field of vehicle engineering. In the sand box mounting structure: the bent beam comprises a bent beam web plate and a bent beam bottom plate, the bent beam bottom plate sequentially has a bent beam flat plate and a bent beam arc plate along the direction close to the second longitudinal beam; the hanging structure is fixed to the top of the sand box, the hanging structure comprises a first lifting lug and a second lifting lug arranged along the transverse direction, the top of the first lifting lug penetrates and is fixed to the bent beam web plate, and the top of the first lifting lug is located directly above the bent beam arc plate, and the top of the second lifting lug is fixed to the bent beam flat plate. At this time, the first lifting lug is located directly above the bent beam arc plate, the sand box is hung by penetrating and fixing the bent beam web plate on the bent beam, direct connection of the bent beam arc plate is avoided, the vertical space on the bent beam where the bent beam arc plate is located is fully utilized, the second lifting lug is fixed to the bent beam flat plate, the bent beam flat plate is directly utilized, the assembly difficulty is reduced, and the application of the bent beam in the sand box hanging is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle engineering, in particular to a sand box mounting structure and a sanding system. BACKGROUND

[0002] In a motor train unit, the sanding system includes a sand box, and the top of the sand box is usually hung and connected to the bottom surface of the vehicle body. In the traditional technology, the top of the sand box is flat, and is assembled to the flat bottom surface area mounted on the bottom of the vehicle body. For some uneven areas of the bottom of the vehicle body, such as the arc surface and the curved beam with a flat surface on the top of the vehicle body, the arc surface is difficult to be used for hanging, and the assembly is difficult, so that the curved beam is usually avoided during the assembly of the sand box, thereby limiting the application of the curved beam in the assembly of the sand box.

[0003] Therefore, how to apply the curved beam to the assembly of the sand box is a technical problem to be solved by those skilled in the art at present. SUMMARY

[0004] Therefore, the present application aims to provide a sand box mounting structure and a sanding system, which can apply the curved beam to the assembly of the sand box.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A sand box mounting structure comprises a vehicle body chassis, a sand box, and a hanging structure. The vehicle body chassis comprises a curved beam, a first longitudinal beam and a second longitudinal beam. The first longitudinal beam and the second longitudinal beam extend along the longitudinal direction and are arranged along the transverse direction in sequence. The two ends of the curved beam are connected to the first longitudinal beam and the second longitudinal beam, respectively. The curved beam comprises a curved beam web and a curved beam bottom plate fixed below the curved beam web. The curved beam bottom plate comprises a curved beam flat plate and a curved beam arc plate in sequence along the direction close to the 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 arranged along the transverse direction. The top of the first lifting lug penetrates and is fixed to the curved beam web, and the top of the first lifting lug is located directly above the curved beam arc plate. The top of the second lifting lug is fixed to the curved beam flat plate.

[0007] Preferably, the vehicle body chassis further comprises a cross beam. The curved beam and the cross beam are arranged along the longitudinal direction in sequence. The two ends of the cross beam are fixed to the first longitudinal beam and the second longitudinal beam, respectively. The bottom of the cross beam is a cross beam bottom plate, and the cross beam bottom plate comprises a cross beam flat plate. The top of the second lifting lug is fixed to the bottom surface of the curved beam flat plate and the bottom surface of the cross beam flat plate at the same time.

[0008] Preferably, the first lifting lug comprises a first transition beam and two first support seats; the first transition beam penetrates through the curved beam web plate; the two first support seats are respectively located on both sides of the curved beam web plate in the longitudinal direction and are fixedly connected to the first transition beam and the curved beam web plate.

[0009] Preferably, the first lifting lug further comprises 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 beyond the two edges of the curved beam bottom plate in the longitudinal direction to respectively form two extension portions; the top ends of the two first lifting arms are fixedly connected below the two extension portions.

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

[0011] Preferably, the second lifting lug further comprises 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 of the second lifting arms is fixed to the part of the second transition beam located directly below the curved beam flat plate, and the top end of the other of the second lifting arms is fixed to the part of the second transition beam located directly below the part between the curved beam flat plate and the cross beam.

[0012] A sanding system comprises an equipment cabin and a sand box mounting structure, the sand box mounting structure is as above; the sand box is arranged in the equipment cabin, part of the outer wall of the equipment cabin is recessed inward along one side in the longitudinal direction to form an avoiding recess, the sand box is connected with a sanding pipeline system, the sanding pipeline system extends to the avoiding recess along the transverse direction inside the equipment cabin; the bottom of the avoiding recess is provided with a bottom opening formed by penetration, and one side in the longitudinal direction is provided with a lateral opening formed by penetration.

[0013] Preferably, the sanding pipeline system comprises a pipe body, the pipe body comprises a sanding hard pipe and a sanding soft pipe connected to one end of the sanding hard pipe, the other end of the sanding hard pipe is connected to the sand box, the sanding hard pipe is arranged inside the equipment cabin, and the sanding soft pipe is arranged outside the equipment cabin and at least part of the structure is located in the avoiding recess.

[0014] Preferably, a pipeline hole is formed on the equipment cabin, the pipe body further comprises a connecting pipe connected between the sanding hard pipe and the sanding soft pipe, the connecting pipe comprises a connecting soft pipe, a second nut, a third nut, a joint body and a joint nut, one end of the sanding hard pipe is connected to the sand box through the first nut, the other end is connected to the second nut through the connecting soft pipe, the joint body is arranged through the pipeline hole, and the joint body is clamped and fixed to the framework 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 sanding soft pipe.

[0015] Preferably, the top of the avoiding groove is further connected with an anti-off structure, and the bottom of the anti-off structure is connected with the sanding pipeline system.

[0016] The sand box mounting structure provided by the application comprises a vehicle body frame, the vehicle body frame comprises a bent beam, a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam extend along the longitudinal direction and are arranged in sequence along the transverse direction, the two ends of the bent beam are connected to the first longitudinal beam and the second longitudinal beam respectively, the bent beam comprises a bent beam web and a bent beam bottom plate fixed below 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, and a hanging structure fixed to the top of the sand box, the hanging structure comprises a first lifting lug and a second lifting lug arranged along the transverse direction, the top of the first lifting lug is arranged through and fixed to the bent beam web, and the top of the first lifting lug is located directly above the bent beam arc plate, and the top of the second lifting lug is fixed to the bent beam flat plate.

[0017] In the sand box mounting structure, the sand box has the first lifting lug and the second lifting lug, the first lifting lug is located directly above the bent beam arc plate, and the hanging of the sand box is achieved by the way that the first lifting lug is arranged through and fixed to the bent beam web of the bent beam, the direct connection of the bent beam arc plate is avoided, the vertical space of the bent beam above the bent beam arc plate is fully utilized, the second lifting lug is fixed to the bent beam flat plate, the bent beam flat plate is directly utilized, the assembly difficulty is reduced, the application of the bent beam in the hanging of the sand box is realized, and the flexibility of the position selection in the assembly of the sand box is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only belong to the embodiments of the application, and other drawings can also be obtained by the provided drawings without creative labor for those skilled in the art.

[0019] Figure 1 The structure diagram of the first specific embodiment of the sand box mounting structure provided by the application;

[0020] Figure 2 Structure diagram of the first lifting lug in the sand box mounting structure according to the first embodiment of the present application;

[0021] Figure 3 Structure diagram of the first lifting lug and the curved beam in the sand box mounting structure according to the first embodiment of the present application from the first perspective;

[0022] Figure 4 Structure diagram of the first lifting lug and the curved beam in the sand box mounting structure according to the first embodiment of the present application from the second perspective;

[0023] Figure 5 Structure diagram of the first lifting lug and the curved beam in the sand box mounting structure according to the first embodiment of the present application;

[0024] Figure 6 Structure diagram of the first lifting lug and the curved beam in the sand box mounting structure according to the first embodiment of the present application;

[0025] Figure 7 Structure diagram of the sanding system according to the first embodiment of the present application;

[0026] Figure 8 Structure diagram of the sanding system according to the first embodiment of the present application;

[0027] Figure 9 Structure diagram of the sanding system according to the first embodiment of the present application;

[0028] Figure 10 Structure diagram of the sanding system according to the first embodiment of the present application;

[0029] Figure 11 Structure diagram of the sanding system according to the first embodiment of the present application;

[0030] Figure 12 Structure diagram of the sanding system according to the first embodiment of the present application;

[0031] Reference signs:

[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] Curved beam 4, curved beam bottom plate 41, curved beam arc plate 411, curved beam flat plate 412, curved beam web plate 42;

[0036] First lifting lug 5, first transition beam 51, first beam vertical plate 511, first beam bottom plate 512, extension 5121, first lifting arm 52, first support seat 53, first seat vertical plate 531, first seat horizontal plate 532;

[0037] Second lifting lug 6, second transition beam 61, second U-shaped beam 611, outer U-shaped beam 612, 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, apron sand level observation window 82, apron sand injection port 83, pipeline hole 84;

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

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

[0042] Vehicle body underframe 11;

[0043] Transverse direction X, longitudinal direction Y. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] The core of the present application is to provide a sand box mounting structure and a sand injection system, which can apply a curved beam to the assembly of a sand box.

[0046] The specific embodiment one of the sand box mounting structure provided by the present application is applied to a motor train unit and can be specifically arranged below the vehicle body of the motor train unit.

[0047] Please refer to Figures 1 to 12 The sand box mounting structure comprises a vehicle body underframe 11, a sand box 7 and a hanging structure.

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

[0049] As shown in the figure, Figure 1 One end of the bent beam 4 is welded on the side beam, and the other end is welded on the traction beam, and the overall structure is in a diagonal down type, the end close to the side beam is a high end, and the end close to the traction beam is a low end. The top surface of the bent beam 4 is a plane, specifically an inclined plane, and the bottom surface of the bent beam 4 is a combination of a plane and an arc surface. Specifically, the bent beam 4 is an I-beam, which comprises a bent beam top plate, a bent beam web plate 42 fixed below the bent beam top plate, and a bent beam bottom plate 41 fixed below the bent beam web plate 42. The top surface of the bent beam top plate is the top surface of the bent beam 4, and the bottom surface of the bent beam bottom plate 41 is the bottom surface of the bent beam 4.

[0050] As shown in the figure, Figure 3 The bent beam bottom plate 41 has a bent beam flat plate 412 and a bent beam arc plate 411 in sequence along the direction close to the second longitudinal beam 2. The bottom surface of the bent beam arc plate 411 is an arc surface structure, and considering that the arc surface structure is not conducive to setting a hanging point, the vertical surface of the bent beam web plate 42 above the arc surface structure is utilized as a mounting surface as a partial mounting point of the hanging structure on the bent beam 4.

[0051] As shown in the figure, Figure 5 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 underframe 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 pillow outer equipment cabin 8.

[0052] As shown in the figure, Figure 1 , Figure 3 and Figure 5 The hanging structure comprises a first lifting lug 5 and a second lifting lug 6 arranged along the transverse direction X. The top of the first lifting lug 5 penetrates and is fixed on the bent beam web plate 42, and the top of the first lifting lug 5 is located directly above the bent beam arc plate 411. The top of the second lifting lug 6 is fixed to the bent beam flat plate 412, and specifically is directly connected below the bent beam flat plate 412. As shown in the figure, Figure 6 The sand box 7 is located substantially below the bent beam 4, and the first lifting lug 5 and the second lifting lug 6 extend to the two sides of the sand box 7 in the transverse direction X respectively, and specifically can extend upward from the connection point with the sand box 7 and continuously away from the sand box 7 in the transverse direction X.

[0053] In the sand box mounting structure, the sand box 7 has the first lifting lug 5 and the second lifting lug 6, the first lifting lug 5 is located directly above the curved beam arc plate 411, and the sand box 7 is hung by penetrating and fixing the curved beam web plate 42 on the curved beam 4, which avoids directly connecting the curved beam arc plate 411 and fully utilizes the vertical space of the curved beam 4 where the curved beam arc plate 411 is located, and the second lifting lug 6 is fixed on the curved beam flat plate 412, directly utilizing the curved beam flat plate 412, which can reduce the assembly difficulty and realize the application of the curved beam 4 in the sand box 7 hanging.

[0054] In order to meet the requirements of hanging strength and rigidity and further improve the reliability of the hanging structure, the horizontal beam 3 with a flat bottom in the vehicle body underframe 11 can also be applied. As shown in Figure 1 、 Figure 3 and Figure 6 , the bottom of the horizontal beam 3 is a horizontal beam bottom plate 31, and the horizontal beam bottom plate 31 includes a horizontal beam flat plate 311. The top of the second lifting lug 6 is fixed to the bottom surface of the curved beam flat plate 412 and the bottom surface of the horizontal beam flat plate 311. At this time, the second lifting lug 6 and the vehicle body underframe 11 have different connection points, and the second lifting lug 6 is lifted by the horizontal 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 arranged in the transverse direction X between the two side beams. Specifically, one sand box 7 can be arranged between the two side beams on both sides of the traction beam in the transverse direction X, and the sand boxes 7 on both sides of the traction beam can be symmetrically arranged, and the hanging structures connected by the sand boxes 7 on both sides of the traction beam can also be symmetrically arranged.

[0056] In the first lifting lug 5, as shown in Figures 1 to 5 , the first lifting lug 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 penetrates the curved beam web plate 42 and can be inserted into the oblong hole formed in the curved beam web plate 42.

[0058] Among them, the first transition beam 51 is a first U-shaped beam, and the U-shaped opening of the first U-shaped beam is upward to ensure the structural strength of the first transition beam 51. As shown in Figure 2 and Figure 4As shown in

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

[0060] Specifically, as shown in Figure 2 and Figure 4 the first support seat 53 is an L-shaped profile, including a first seat upright plate 531 and a first seat horizontal plate 532 located at the top end of the first seat upright plate 531, and the first support seat 53 can be integrally formed. The first seat upright plate 531 is fitted and riveted to the side surface of the curved beam web 42, and the first seat horizontal plate 532 is fitted and bolted to the lower side of the first transition beam 51, so as to ensure the connection stiffness between the first lifting arm 52 and the first transition beam 51 and the curved beam 4, and the riveting mode can avoid the weld seam bearing stress caused by welding, so as to realize lightweight design under the condition of meeting the lifting.

[0061] Specifically, as shown in Figure 4 and Figure 6 the bottom end of the two first lifting arms 52 is fixed to the top of the sand box 7. The two ends of the first transition beam 51 respectively extend beyond the two edges of the curved beam web 41 in the longitudinal direction Y to respectively form two extension portions 5121, and specifically, the extension portion 5121 is located on the first beam web 512, and the top end of the two first lifting arms 52 is fixedly connected to the lower side of the two extension portions 5121, and specifically, the two first lifting arms 52 can be bolted. Through the arrangement of the extension portion 5121, the connection between the first lifting arm 52 and the first transition beam 51 can be facilitated, and the shape of the first lifting arm 52 can be simplified.

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

[0063] Specifically, as shown in Figure 1 , Figure 5 and Figure 6 , the second transition beam 61 comprises a second U-shaped beam 611, and the opening of the second U-shaped beam 611 faces away from the first lifting lug 5 in the transverse direction X. The top of the second U-shaped beam 611 is fixed to the bent beam plate 412 and the cross beam plate 311 at the same time, and the mounting plane of the second transition beam 61 is provided by the plane at the bottom of the bent beam 4 and the plane at the bottom of the cross beam 3 together.

[0064] Wherein, as shown in Figure 3 and Figure 6 , 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 at the part of the second U-shaped beam 611 outside and directly below the cross beam 3, so that the top surface of the second transition beam 61 forms a stepped surface with uneven height, which is adapted to the height of the bottom surface of the bent beam plate 412 and the bottom surface of the cross beam 3 respectively, and then the second U-shaped beam 611 is kept at a set height in general, for example, the extension direction of the second U-shaped beam 611 is parallel to the extension direction of the first longitudinal beam 1.

[0065] Specifically, as shown in Figure 5 and Figure 6 , the bottom end of the two second lifting arms 62 is fixed to the top of the sand box 7. In the two second lifting arms 62, the top end of one second lifting arm 62 is fixed to the part of the second transition beam 61 directly below the bent beam plate 412, and the top end of the other second lifting arm 62 is fixed to the part of the second transition beam 61 directly below the part between the bent beam plate 412 and the cross beam 3, so as to balance the stress of the second transition beam 61.

[0066] In addition to the above sand box mounting structure, the application also provides a sanding system, which comprises a device cabin 8 and a sand box mounting structure, and the sand box mounting structure can be any one of the sand box mounting structures provided in the above embodiments, and the beneficial effects can be correspondingly referred to the above embodiments.

[0067] As shown in Figures 7 to 12 , the device cabin 8 is connected below the vehicle body chassis 11, and the sand box mounting structure is arranged in the device cabin 8. As shown in Figure 7 , the sand box 7 is arranged in the device cabin 8, and part of the outer wall of the device cabin 8 is recessed inward along one side in the longitudinal direction Y to form a recess 81, so as to make full use of the space in the transverse direction X below the vehicle body chassis 11.

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

[0069] Specifically, the sanding pipeline system 9 includes a pipeline body, the pipeline body includes a sanding hard pipe 91 and a sanding soft pipe 92 connected to one end of the sanding hard pipe 91, and the other end of the sanding hard pipe 91 is connected to the sand box 7. The sanding hard pipe 91 is arranged in the equipment cabin 8, and the sanding hard pipe 91 is specifically a steel pipe, and the shape can be a bent pipe to adapt to the installation orientation requirement. The sanding soft pipe 92 is arranged outside the equipment cabin 8 and at least part of the structure is located in the avoiding groove 81. Since there is relative movement between the bogie and the vehicle body frame 11, there is usually relative movement between the sand outlet of the sanding unit on the side of the sand box 7 and the sanding outlet on the side of the bogie, and the bogie has various working conditions during operation, by arranging the part of the pipeline body outside the equipment cabin 8 as the sanding soft pipe 92 to be connected between the sand box 7 and the bogie, the movement requirement between the bogie and the vehicle body frame 11 can be ensured, the flow of sand from the sanding outlet on the side of the sand box to the sanding outlet on the side of the bogie is facilitated, and the sanding performance is ensured.

[0070] Among them, since the sanding soft pipe 92 is in a swinging state during the operation of the vehicle, under various working conditions of the bogie, the wear of the sanding soft pipe 92 and the surrounding equipment cabin 8 and other components is avoided, the sanding soft pipe 92 is adapted to various movement working conditions of the bogie, when designing the avoiding groove 81, the activity state of the sanding soft pipe 92 between the sanding outlet of the equipment cabin and the sanding outlet of the bogie can be simulated in advance, the length of the sanding soft pipe 92 and the activity space occupied by the sanding soft pipe 92 are determined. For example, the height difference of the two ends of the sanding soft pipe 92 is ensured to meet the conditions of wheel rim wear and air spring gas loss, the length of the sanding soft pipe 92 is determined to be between 700mm-800mm, and then the shape and size of the avoiding groove 81 are determined. In addition, during the connection of the sanding soft pipe 92, the sanding soft pipe 92 is in a C-shaped structure and gradually downwardly inclined in the avoiding groove 81, which is conducive to the spraying of sand on the rail surface.

[0071] Specifically, as shown in Figures 9 to 11As shown, the pipeline hole 84 is provided on the equipment cabin 8 for the pipe body to pass through. The pipe body further comprises a connecting pipe connected between the sanding hard pipe 91 and the sanding soft pipe 92, and the connecting pipe comprises 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] As shown, one end of the sanding 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 sanding unit of the sand box 7. The other end of the sanding hard pipe 91 is connected to the second nut 95 through the connecting hose 93, and the connecting hose 93 plays a role of installation adjustment. The joint body 97 is provided through the pipeline hole 84 and is clamped and fixed to the framework of the equipment cabin 8 through the third nut 96 and the boss on the joint body 97, and 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 framework of the equipment cabin 8, is installed on the framework of the equipment cabin 8 through the third nut 96 in the equipment cabin 8, and one end of the joint body 97 is threadedly connected to the second nut 95. The other end of the joint body 97, i.e., the 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 sanding soft pipe 92, so as to realize the fixed connection and communication of the sanding soft pipe 92 and the sanding hard pipe 91.

[0073] Since, in the connecting pipe, all the fasteners or connecting members are located inside the equipment cabin 8 except the joint nut 98, the risk of the fasteners or connecting members of the sanding unit falling outside the equipment cabin 8 can be avoided, and all the parts except the joint nut 98 can be pre-installed in the equipment cabin 8 during the assembly process, so as to solve the problem that it is difficult to install the sanding soft pipe 92 after the framework of the equipment cabin is installed on the vehicle during the construction process.

[0074] In order to ensure the reliability of the connection of the part of the sanding pipeline system 9 located outside the equipment cabin, the anti-falling structure 10 is further provided in the avoiding groove 81. As shown, the top of the avoiding groove 81 is connected to the top of the anti-falling structure 10, and the bottom of the anti-falling structure 10 is connected to the sanding pipeline system 9, and the anti-falling structure 10 is specifically used for suspending the sanding soft pipe 92.

[0075] Specifically, as shown, Figure 9 The top of the anti-falling structure 10 is fixed to the groove top surface 811. The anti-falling structure 10 can comprise a connecting member as the main suspension structure, and is specifically a flexible connecting member, and can also be a steel wire rope 101 or a chain. In addition, as shown, Figure 12As shown, the top of the anti-off structure 10 is provided with a top pulley 102, and the bottom is provided with a pipe clamp 103, which includes a bottom pulley 1031 and a plurality of pipe sleeves 1032, and a 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 bolted to the pulley mounting seat on the top surface 811 of the groove. Each sanding hose 92 is 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 the pipe movement, so that this kind of anti-off structure 10 can not only adapt to the swing of the sanding hose 92 during vehicle operation, but also play a role in preventing off.

[0076] The sanding system in the embodiment is applied to a motor train unit, the sand box 7 is installed in the equipment cabin 8, and the installation mode of the sand box 7 is a cantilever structure on both sides, which is suitable for the curved beam 4 form of the vehicle body underframe 11 and can realize maximum lightweight under the requirement of hanging the sand box 7. In the sanding pipe system 9, the sanding hose 92 is connected between the sanding port of the bogie and the sanding port of the end sand box 7 of the vehicle body, and the sanding hose 92 can meet various swing conditions of the bogie during vehicle operation, and the setting of the avoidance space can ensure the activity range of the sanding hose 92.

[0077] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. Furthermore, in the description of the present application, unless otherwise stated, the meaning of "a plurality of", "a plurality of", "a plurality of" is two or more than two.

[0078] The orientations or positional relationships indicated by the terms such as "central", "upper", "lower", "horizontal", "vertical", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only intended to facilitate description and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", etc. are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

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

[0080] The various embodiments are described in the specification, each of which focuses on differences from other embodiments, and the same or similar parts among the various embodiments can be mutually referred to.

[0081] The sand box mounting structure and sanding system provided by the present application are described in detail above. The principles and implementation modes of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

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 lug (5) and a second hanging lug (6) arranged along the transverse direction (X), the top of the first hanging lug (5) passes through and is fixed on the web of the bent beam (42), and the top of the first hanging lug (5) is located directly above the curved plate (411) of the bent beam, and the top of the second hanging lug (6) is fixed to the flat plate of the bent beam (412).

2. The flask installation structure according to claim 1, characterized in that: The vehicle body chassis (11) further includes 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) includes 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 bent beam web (42); the two first support seats (53) are respectively located on both sides of the bent beam web (42) in the longitudinal direction (Y), and are both fixedly connected to the first transition beam (51) and the bent beam web (42).

4. The flask installation structure according to claim 3, characterized in that: The first lifting ear (5) further includes two first lifting arms (52), the bottom ends of the two first lifting arms (52) are fixed to the top of the sand box (7), and the two ends of the first transition beam (51) extend out from the two edges of the bent beam bottom plate (41) in the longitudinal direction (Y) to form two protruding portions (5121) respectively; the top ends of the two first lifting arms (52) are respectively fixedly connected to the bottom of the two protruding portions (5121).

5. The flask installation structure according to claim 2, characterized in that: The second lifting lug (6) includes a second transition beam (61), the second transition beam (61) includes a second U-shaped beam (611), the opening of the second U-shaped beam (611) faces in the direction away from the first lifting lug (5) in the transverse direction (X), and 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.

6. The flask installation structure according to claim 5, characterized in that: The second lifting lug (6) further includes two second lifting arms (62), the bottom ends of the two second lifting arms (62) are fixed to the top of the sand box (7), the top end of one second lifting arm (62) is fixed to the portion of the second transition beam (61) directly below the bent beam plate (412), and the top end of the other second lifting arm (62) is fixed to the portion of the second transition beam (61) directly below the portion between the bent 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 setting, and one side in the longitudinal direction (Y) is a lateral opening (816) formed by a through setting.

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: A pipeline hole (84) is provided on the equipment cabin (8); 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) is passed through the pipeline hole (84) and is clamped to the skeleton of the equipment cabin (8) by 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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