Intelligent sand adding device for motor train unit

Abstract

The invention relates to the technical field of rail transit, and particularly discloses an intelligent sand adding device for a motor train unit, which comprises a sand transporting vehicle, and further comprises a filtering mechanism arranged on the sand transporting vehicle and used for filtering sand; the sand conveying vehicle is moved to the sand adding box of the bullet train, then components on the sand conveying vehicle are checked, one end of the sand adding pipe is connected with the sand adding box on the bullet train after checking is completed, then crushed sand and stones are poured into the filtering barrel on the sand adding vehicle, and the sand and stones can fall onto an interception plate in the filtering barrel after being filtered by the filtering barrel. According to the sand adding device, the sand flows into the sand adding pipe through the holes in the interception plate, then the conveying pipe on the sand conveying vehicle is started to suck the sand in the flow dividing pipe into the sand adding pipe, then the sand is conveyed into the sand adding box to complete the sand adding work, through the arrangement of the filtering barrel, the crushed sand can be filtered, large sand is prevented from reaching the sand adding box, and the sand adding efficiency is improved. Therefore, the sanding system is blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transportation, and in particular to an intelligent sand-adding device for an EMU. Background Art

[0002] Brake sand for rail vehicles is used to prevent the vehicle from slipping during operation. A sand box is usually installed next to the wheel, which is mainly used to spread sand on the track when climbing and braking to increase the friction of the contact surface. For the convenience of operation, the EMU will be raised above the ground during inspection and maintenance, and sand needs to be added to the sand box during the inspection and maintenance process.

[0003] During routine maintenance of the EMU, the remaining amount in the sand box is first determined. If sand needs to be added, the staff will push the sand adding cart and then align the nozzle of the sand adding cart with the sand adding box on the EMU to add sand. During the sand adding process, the amount of sand added is monitored to avoid excessive or insufficient sand. After the sand adding is completed, the sand box is closed and the sand adding port is cleaned.

[0004] In the prior art, quartz sand is generally used for sanding in motor vehicles. These quartz sands need to be crushed before sanding to be broken into small particles of sand and gravel to meet the sanding work of the motor vehicle. The crushed quartz sand will be loaded on the sand-adding vehicle for sanding. However, it is found in the sand-adding process that there are still some large particles in the quartz sand after being crushed. If these particles reach the interior of the sand box of the motor vehicle, they will affect the subsequent sanding process. In severe cases, it will cause the sand-adding system to be blocked. Therefore, it is necessary to filter the sand when adding it to prevent large particles from entering the sand box. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent sand adding device for EMUs to solve the following technical problems: (1) How to filter sand and gravel to prevent them from clogging the sand spreading system.

[0006] The purpose of the present invention can be achieved through the following technical solutions: An intelligent sand-adding device for a motor train comprises a sand-carrying vehicle and further comprises: The filtering mechanism is installed on the sand transport vehicle and is used for filtering sand and gravel; The sand adding pipe is connected to the filter mechanism and is used for adding sand and gravel; The conveying pipe is used to connect the filtering mechanism and the sand adding pipe and is used for conveying sand and gravel; The filtering mechanism includes a filter barrel; a retention plate is fixedly connected inside the filter barrel; a diversion pipe is fixedly connected to the bottom of the retention plate; one end of the diversion pipe away from the retention plate is fixedly connected to a delivery pipe; and the delivery pipe is arranged to pass through the filter barrel.

[0007] Furthermore, a conical bin is fixedly connected to the top of the filter barrel; a guide plate is fixedly connected inside the conical bin; two groups of guide plates are provided; the guide plates are arranged in the middle of the conical bin; a connecting bin is rotatably connected to the bottom of the conical bin; a filter bin is fixedly connected to the bottom of the connecting bin; multiple groups of filter bins are provided; and the retention plate is arranged below the filter bin.

[0008] Furthermore, the side wall of the connecting bin is fixedly connected to a transmission gear disc; the side wall of the conical bin is rotatably connected to an inertia shaft; the inertia shaft is fixedly connected to an inertia plate; the inertia shaft and the inertia plate are arranged in the middle of the conical bin; the guide plate is arranged on both sides of the inertia plate; one end of the inertia shaft passes through the conical bin; one end of the inertia shaft is fixedly connected to a driving gear; and the driving gear is meshed with the transmission gear disc.

[0009] Furthermore, the side wall of the filter barrel is fixedly connected to a vibration bin; a vibration box is fixedly connected inside the vibration bin; a vibration spring is fixedly connected inside the vibration box; the end of the vibration spring away from the vibration box is fixedly connected to a slide; the slide is slidably arranged in the vibration box; a vibration head is fixedly connected to the slide; two groups of vibration heads are arranged; the vibration head is arranged through the vibration box; an extrusion plate is fixedly connected to the bottom of the filter barrel; an extrusion head is fixedly connected to the extrusion plate; and the extrusion plate abuts against the vibration head.

[0010] Furthermore, the side wall of the filter barrel is fixedly connected to a waste bin; the waste bin is arranged above the vibration bin; the bottom of the waste bin is movably connected to a waste barrel; and one end of the filter bin away from the connecting bin is connected to the waste bin.

[0011] Furthermore, a cleaning rod is fixedly connected to the bottom of the connecting bin; a cleaning brush is fixedly connected to one end of the cleaning rod away from the connecting bin; and the bottom of the cleaning brush abuts against the intercepting plate.

[0012] Furthermore, the vibration boxes are provided in multiple groups, which are arranged corresponding to the filter bins.

[0013] Furthermore, the diverter tubes are provided in multiple groups; and the multiple groups of diverter tubes are all fixedly connected to the delivery tube.

[0014] Beneficial effects of the present invention: (1) The present invention moves the sand transport car to the sand adding box of the moving car, then checks the components on the sand transport car, connects one end of the sand adding pipe to the sand adding box on the moving car after the inspection, and then pours the crushed sand and gravel into the filter barrel on the sand adding car. After filtering in the filter barrel, the sand and gravel will fall onto the intercepting plate inside the filter barrel, and then flow to the diversion pipe below through the holes on the intercepting plate. Then, the conveying pipe on the sand transport car is opened to suck the sand and gravel in the diversion pipe into the sand adding pipe, and then transport it to the sand adding box to complete the sand adding work. By setting the filter barrel, the crushed sand and gravel can be filtered to prevent larger sand and gravel from reaching the sand adding box and causing blockage of the sand spreading system.

[0015] (2) The present invention drives the inertia plate to rotate during the flow of sand and gravel. When the inertia plate rotates, it also drives the inertia shaft on the conical bin to rotate. When the inertia plate rotates, it drives the driving gear at one end to rotate. When the driving gear rotates, it drives the transmission gear disc below to rotate. Since the transmission gear disc is fixed to the connecting bin, when the transmission gear disc rotates, it also drives the connecting bin and the filter bin to rotate. In this way, when the filter bin is filtering, the filter bin can be kept in motion, which can effectively avoid blockage in the filter bin. At the same time, when the sand and gravel reach the bottom of the connecting bin, some of the sand and gravel may stay in the connecting bin. The rotation of the connecting bin can drive the internal sand and gravel to shake, so that the sand and gravel move to the filter bin, avoiding the sand and gravel staying in the connecting bin. At the same time, the setting of the inertia plate can divert the sand and gravel, avoiding congestion when a large amount of sand and gravel enters the filter barrel.

[0016] (3) The present invention can instantly drive the extrusion plate and the filter bin to vibrate through the rebound force of the vibration spring. In the vibrating state, the sand and gravel stuck in the filter port of the filter bin can be shaken off to prevent the sand and gravel from clogging the filter bin and affecting the subsequent filtering effect. The falling inertia of the sand and gravel drives the connecting bin to rotate, and the rotating connecting bin drives the filter bin to rotate. When the filter bin rotates, it contacts the vibration head on the side, so that the vibration head drives the filter bin to vibrate, causing the sand and gravel stuck in the filter bin to fall, thereby improving the filtering effect.

[0017] (4) The sand and gravel filtered in the present invention will fall onto the intercepting plate below. Since the intercepting plate is set in a plane, some sand and gravel may remain on the intercepting plate. At this time, the rotation of the connecting chamber drives the cleaning rod and the cleaning brush to rotate. The cleaning brush is used to clean the sand and gravel remaining on the intercepting plate into the diversion pipe, thereby realizing the sand adding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the sand transport vehicle of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the sand transport vehicle of the present invention; Figure 3 It is a schematic diagram of the overall structure of the filter barrel in the present invention; Figure 4 This is a cross-sectional view of the overall structure of the filter barrel of the present invention; Figure 5 It is a schematic diagram of the overall structure of the vibration bin in the present invention; Figure 6 This is a schematic diagram of the overall structure of the filter chamber and the vibration box in the present invention; Figure 7 It is a cross-sectional view of the overall structure of the filter bin and the vibration box in the present invention.

[0020] Description of the drawings: 1. Sand transport vehicle; 2. Filter mechanism; 21. Filter barrel; 211. Waste bin; 212. Waste bin; 213. Retention plate; 22. Guide plate; 23. Inertia shaft; 231. Inertia plate; 232. Drive gear; 24. Conical bin; 25. Connecting bin; 251. Filter bin; 252. Transmission gear disc; 2511. Extrusion plate; 2512. Extrusion head; 26. Vibration bin; 261. Vibration box; 262. Vibration spring; 263. Slide plate; 264. Vibration head; 27. Cleaning rod; 271. Cleaning brush; 28. Diverter pipe; 3. Sand adding pipe; 4. Delivery pipe. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 7 As shown, the present application provides an intelligent sand adding device for a train set, comprising a sand transport vehicle 1, and further comprising: The filtering mechanism 2 is provided on the sand transport vehicle 1 and is used for filtering sand and gravel; The sand adding pipe 3 is connected to the filtering mechanism 2 and is used for adding sand and gravel; The conveying pipe 4 is used to connect the filtering mechanism 2 and the sand adding pipe 3, and is used for conveying sand and gravel; The filtering mechanism 2 includes a filter barrel 21; a retaining plate 213 is fixedly connected to the filter barrel 21; a diverter pipe 28 is fixedly connected to the bottom of the retaining plate 213; the end of the diverter pipe 28 away from the retaining plate 213 is fixedly connected to the delivery pipe 4; the delivery pipe 4 is arranged to pass through the filter barrel 21; During operation, in the prior art, the sand and gravel used for sanding in motor vehicles are generally quartz sand. These quartz sands need to be crushed before sanding to be broken into small grains of sand and gravel to meet the sanding work of the motor vehicle. The crushed quartz sand will be loaded on the sand-feeding vehicle for sanding. However, in the process of sanding, it is found that there are still some large particles in the quartz sand after being crushed. If these particles reach the interior of the sand box of the motor vehicle, they will affect the subsequent sanding process. In severe cases, it will cause the sand-feeding system to be blocked. Therefore, it is necessary to filter the sand when adding sand to prevent large particles from entering the sand box. In order to prevent such incidents from happening, first, the sand transport vehicle 1 is moved to the sand-feeding box of the motor vehicle, Then check the components on the sand transport car 1. After the inspection, connect one end of the sand adding pipe 3 to the sand adding box on the moving car. Then pour the crushed sand and gravel into the filter barrel 21 on the sand adding car. After filtering through the filter barrel 21, the sand and gravel will fall onto the retention plate 213 inside the filter barrel 21, and then flow to the diversion pipe 28 below through the holes on the interception plate 213. Then open the conveying pipe 4 on the sand transport car 1 to suck the sand and gravel in the diversion pipe 28 into the sand adding pipe 3, and then transport it to the sand adding box to complete the sand adding work. Through the setting of the filter barrel 21, the crushed sand and gravel can be filtered to prevent larger sand and gravel from reaching the sand adding box and causing blockage of the sand spreading system.

[0023] like Figure 2 As shown, the top of the filter barrel 21 is fixedly connected to a conical bin 24; the conical bin 24 is fixedly connected to a guide plate 22; two groups of guide plates 22 are provided; the guide plates 22 are arranged in the middle of the conical bin 24; the bottom of the conical bin 24 is rotatably connected to a connecting bin 25; the bottom of the connecting bin 25 is fixedly connected to a filter bin 251; the filter bin 251 is provided with multiple groups; the retaining plate 213 is arranged below the filter bin 251; During operation, first, the crushed sand and gravel are poured into the conical bin 24 at the top of the filter barrel 21, and at the same time, the sand and gravel are guided to the middle of the conical bin 24 through the guide plate 22 in the conical bin 24, and then reach the connecting bin 25 below. The connecting bin 25 is a special structure. The connection between the connecting bin 25 and the conical bin 24 is a columnar structure with a smaller size. The connection between the connecting bin 25 and the filter bin 251 is a disc-shaped structure with a larger size. At the same time, a plurality of holes are provided at the bottom of the connecting bin 25 for connecting with the filter bin 251. The filter bin 251 is connected. When the sand and gravel fall into the connecting bin 25 through the conical bin 24, they will fall to the bottom of the connecting bin 25 and then flow into the filter bin 251. The filter bin 251 is arranged in a strip shape and is provided with multiple groups. The sand and gravel can be diverted to avoid uniform filtration of the sand and gravel, which will cause the filtration effect to slow down or cause filtration blockage. After being filtered by the filter bin 251, the sand and gravel will fall onto the retention plate 213 and be diverted to the diversion pipe 28 through the retention plate 213 to realize the transportation of sand and gravel.

[0024] like Figure 2 and Figure 4As shown, the side wall of the connecting bin 25 is fixedly connected to a transmission gear disc 252; the side wall of the conical bin 24 is rotatably connected to the inertia shaft 23; the inertia plate 231 is fixedly connected to the inertia shaft 23; the inertia shaft 23 and the inertia plate 231 are arranged in the middle of the conical bin 24; the guide plate 22 is arranged on both sides of the inertia plate 231; one end of the inertia shaft 23 passes through the conical bin 24; one end of the inertia shaft 23 is fixedly connected to a drive gear 232; the drive gear 232 is meshed with the transmission gear disc 252; During operation, when sand and gravel are poured into the cylindrical bin, the sand and gravel will be guided to the inertia plate 231 by the guide plate 22. At the same time, the mass of the sand and gravel is large, and the inertia plate 231 will be driven to rotate during the flow of the sand and gravel. When the inertia plate 231 rotates, the inertia shaft 23 on the conical bin 24 will be driven to rotate. When the inertia plate 231 rotates, the driving gear 232 at one end will be driven to rotate. When the driving gear 232 rotates, the transmission gear disc 252 below will be driven to rotate. Since the transmission gear disc 252 is fixedly connected to the connecting bin 25, the transmission gear disc 252 will also be driven when the transmission gear disc 252 rotates. The connecting chamber 25 and the filter chamber 251 rotate, so that when the filter chamber 251 is filtering, the filter chamber 251 can be in motion, which can effectively avoid blockage in the filter chamber 251. At the same time, when the sand and gravel reach the bottom of the connecting chamber 25, some of the sand and gravel may remain in the connecting chamber 25. The rotation of the connecting chamber 25 can drive the internal sand and gravel to shake, so that the sand and gravel can be moved to the filter chamber 251, avoiding the sand and gravel to stay in the connecting chamber 25. At the same time, the setting of the inertia plate 231 can divert the sand and gravel, avoiding congestion when a large amount of sand and gravel enters the filter barrel 21.

[0025] like Figure 4-Figure 7 As shown, the side wall of the filter barrel 21 is fixedly connected to a vibration bin 26; a vibration box 261 is fixedly connected to the vibration bin 26; a vibration spring 262 is fixedly connected to the vibration box 261; a slide plate 263 is fixedly connected to the end of the vibration spring 262 away from the vibration box 261; the slide plate 263 is slidably arranged in the vibration box 261; a vibration head 264 is fixedly connected to the slide plate 263; two groups of vibration heads 264 are provided; the vibration heads 264 are arranged through the vibration box 261; an extrusion plate 2511 is fixedly connected to the bottom of the filter barrel; an extrusion head 2512 is fixedly connected to the extrusion plate 2511; the extrusion plate 2511 abuts against the vibration head 264; During operation, when the filter bin 251 is driven to rotate, the extrusion head 2512 at the bottom of the filter bin 251 will also rotate accordingly. At the same time, a vibration box 261 is provided on the side wall of the filter barrel 21, and a vibration head 264 is provided at the end of the vibration box 261. When the filter bin 251 rotates, the extrusion head 2512 will be driven to contact the vibration head 264 on the vibration box 261, and the vibration head 264 will be squeezed into the vibration box 261, and the vibration spring 262 will be squeezed at the same time. When the extrusion head 2512 is away from the vibration box 261, the vibration head 264 loses its squeeze. At this time, the vibration spring 262 rebounds and bounces the vibration head 264 to the filter bin On the extrusion plate 2511 at the bottom of 251, the rebound force of the vibration spring 262 can instantly drive the extrusion plate 2511 and the filter bin 251 to vibrate. In the vibrating state, the sand and gravel stuck in the filter port of the filter bin 251 can be shaken off to prevent the sand and gravel from clogging the filter bin 251 and affecting the subsequent filtering effect. The falling inertia of the sand and gravel drives the connecting bin 25 to rotate, and the rotating connecting bin 25 drives the filter bin 251 to rotate. When the filter bin 251 rotates, it contacts the vibration head 264 on the side, so that the vibration head 264 drives the filter bin 251 to vibrate, so that the sand and gravel stuck in the filter bin 251 fall, thereby improving the filtering effect.

[0026] like Figure 4 As shown, the side wall of the filter barrel 21 is fixedly connected to a waste bin 211; the waste bin 211 is arranged above the vibration bin 26; the bottom of the waste bin 211 is movably connected to a waste barrel 212; the end of the filter bin 251 away from the connection bin 25 is connected to the waste bin 211; During operation, the end of the filter bin 251 away from the connecting bin 25 is connected to the waste bin 211. After the qualified sand and gravel are filtered out, the larger sand and gravel will slide into the waste bin 211 along with the filter bin 251, and then fall into the waste bucket 212 below the filter bin 251. Finally, the waste bucket 212 can be removed and the waste can be poured out. The filter bin 251 and the waste bin 211 are slidably connected, and will not separate from the waste bin 211 when the filter bin 251 rotates.

[0027] like Figure 4 As shown, a cleaning rod 27 is fixedly connected to the bottom of the connecting chamber 25; a cleaning brush 271 is fixedly connected to one end of the cleaning rod 27 away from the connecting chamber 25; the bottom of the cleaning brush 271 abuts against the intercepting plate 213; During operation, the filtered sand and gravel will fall onto the intercepting plate 213 below. Since the intercepting plate 213 is set in a flat surface, some sand and gravel may remain on the intercepting plate 213. At this time, the connecting bin 25 rotates to drive the cleaning rod 27 and the cleaning brush 271 to rotate. The cleaning brush 271 is used to clean the sand and gravel remaining on the intercepting plate 213 into the diversion pipe 28 to realize the sand adding work.

[0028] like Figure 5 As shown, the vibration boxes 261 are provided in multiple groups, which are arranged corresponding to the filter bins 251; During operation, the arrangement of multiple sets of vibration boxes 261 can achieve uninterrupted vibration, thereby improving the filtering effect of the filter chamber 251 .

[0029] like Figure 4 As shown, the diverter pipes 28 are provided in multiple groups; the multiple groups of diverter pipes 28 are fixedly connected to the delivery pipe 4; During operation, the sand and gravel can be diverted through the multi-group diversion pipes 28 to avoid blockage of the delivery pipe 4 due to unified delivery of the sand and gravel.

[0030] Working principle of the present invention: In the prior art, the sand and gravel used for sanding in motor vehicles are generally quartz sand. These quartz sands need to be crushed before sanding. They are broken into small grains of sand and gravel to meet the sanding work of the motor vehicle. The crushed quartz sand will be loaded on the sand-adding vehicle for sanding. However, in the process of sanding, it is found that there are still some large particles in the quartz sand after crushing. If these particles reach the interior of the motor vehicle sand box, they will affect the subsequent sanding process. In severe cases, it will cause the sand-adding system to be blocked. Therefore, it is necessary to filter when adding sand to prevent larger particles from entering the sand box. In order to prevent such incidents from happening, first, the sand transport vehicle 1 is moved to the motor vehicle sand-adding box. The sand and gravel are then filtered through the filter barrel 21 and flow into the diversion pipe 28 below. The conveying pipe 4 on the sand transporter 1 is then opened to suck the sand and gravel in the diversion pipe 28 into the sand adding pipe 3, and then transported to the sand adding box to complete the sand adding work. Through the setting of the filter barrel 21, the crushed sand and gravel can be filtered to prevent larger sand and gravel from reaching the sand adding box and causing blockage of the sand spreading system.

[0031] Among them, when sand and gravel are poured into the cylindrical bin, the sand and gravel will be guided to the inertia plate 231 by the guide plate 22. At the same time, the mass of the sand and gravel is large, and the inertia plate 231 will be driven to rotate during the flow of the sand and gravel. When the inertia plate 231 rotates, the inertia shaft 23 on the conical bin 24 will be driven to rotate. When the inertia plate 231 rotates, the driving gear 232 at one end will be driven to rotate. When the driving gear 232 rotates, the transmission gear disc 252 below will be driven to rotate. Since the transmission gear disc 252 is fixedly connected to the connecting bin 25, the connecting bin 25 and the filter bin 251 will be driven to rotate when the transmission gear disc 252 rotates. In this way, when the filter chamber 251 is filtering, the filter chamber 251 can be kept in motion, which can effectively avoid clogging in the filter chamber 251. At the same time, when the sand and gravel reach the bottom of the connecting chamber 25, some of the sand and gravel may stay in the connecting chamber 25. The rotation of the connecting chamber 25 can drive the internal sand and gravel to shake, so that the sand and gravel move to the filter chamber 251, avoiding the sand and gravel to stay in the connecting chamber 25. At the same time, the setting of the inertia plate 231 can divert the sand and gravel, avoiding congestion when a large amount of sand and gravel enters the filter barrel 21. When the filter chamber 251 is driven to rotate, the squeezed sand at the bottom of the filter chamber 251 is The pressure head 2512 will also rotate accordingly. At the same time, a vibration box 261 is provided on the side wall of the filter barrel 21, and a vibration head 264 is provided at the end of the vibration box 261. When the filter chamber 251 rotates, it will drive the extrusion head 2512 to contact the vibration head 264 on the vibration box 261, and squeeze the vibration head 264 into the vibration box 261, squeezing the vibration spring 262 at the same time. When the extrusion head 2512 is away from the vibration box 261, the vibration head 264 loses its squeezing. At this time, the vibration spring 262 rebounds and bounces the vibration head 264 onto the squeezing plate 2511 at the bottom of the filter chamber 251 The rebound force of the vibration spring 262 can instantly drive the extrusion plate 2511 and the filter bin 251 to vibrate. In the vibrating state, the sand and gravel stuck in the filter port of the filter bin 251 can be shaken off to prevent the sand and gravel from clogging the filter bin 251 and affecting the subsequent filtering effect. The falling inertia of the sand and gravel drives the connecting bin 25 to rotate, and the rotating connecting bin 25 drives the filter bin 251 to rotate. When the filter bin 251 rotates, it contacts the vibration head 264 on the side, so that the vibration head 264 drives the filter bin 251 to vibrate, causing the sand and gravel stuck in the filter bin 251 to fall, thereby improving the filtering effect.

[0032] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An intelligent sand adding device for a train set, comprising a sand transport vehicle (1), characterized in that: Also includes: A filtering mechanism (2) is provided on the sand transport vehicle (1) and is used for filtering sand and gravel; A sand adding pipe (3) is connected to the filter mechanism (2) and is used for adding sand and gravel; A conveying pipe (4) is used for connecting the filtering mechanism (2) and the sand adding pipe (3) and is used for conveying sand and gravel; The filtering mechanism (2) comprises a filter barrel (21); a retaining plate (213) is fixedly connected inside the filter barrel (21); a diversion pipe (28) is fixedly connected to the bottom of the retaining plate (213); an end of the diversion pipe (28) away from the retaining plate (213) is fixedly connected to a delivery pipe (4); and the delivery pipe (4) is arranged to pass through the filter barrel (21).

2. The intelligent sand adding device for EMU according to claim 1, characterized in that: The top of the filter barrel (21) is fixedly connected to a conical bin (24); a guide plate (22) is fixedly connected inside the conical bin (24); two groups of guide plates (22) are provided; the guide plates (22) are arranged in the middle of the conical bin (24); the bottom of the conical bin (24) is rotatably connected to a connecting bin (25); the bottom of the connecting bin (25) is fixedly connected to a filter bin (251); multiple groups of filter bins (251) are provided; and the intercepting plate (213) is arranged below the filter bin (251).

3. The intelligent sand adding device for EMU according to claim 2, characterized in that: The side wall of the connecting bin (25) is fixedly connected to a transmission gear disc (252); the side wall of the conical bin (24) is rotatably connected to an inertia shaft (23); an inertia plate (231) is fixedly connected to the inertia shaft (23); the inertia shaft (23) and the inertia plate (231) are arranged in the middle of the conical bin (24); the guide plate (22) is arranged on both sides of the inertia plate (231); one end of the inertia shaft (23) passes through the conical bin (24); one end of the inertia shaft (23) is fixedly connected to a driving gear (232); the driving gear (232) is meshed with the transmission gear disc (252).

4. The intelligent sand adding device for EMU according to claim 3, characterized in that: The side wall of the filter barrel (21) is fixedly connected to a vibration bin (26); a vibration box (261) is fixedly connected inside the vibration bin (26); a vibration spring (262) is fixedly connected inside the vibration box (261); a slide plate (263) is fixedly connected to one end of the vibration spring (262) away from the vibration box (261); the slide plate (263) is slidably arranged inside the vibration box (261); a vibration head (264) is fixedly connected to the slide plate (263); two groups of vibration heads (264) are provided; the vibration heads (264) are arranged to pass through the vibration box (261); an extrusion plate (2511) is fixedly connected to the bottom of the filter barrel; an extrusion head (2512) is fixedly connected to the upper end of the extrusion plate (2511); the extrusion plate (2511) is in contact with the vibration head (264).

5. The intelligent sand adding device for EMU according to claim 4, characterized in that: A waste bin (211) is fixedly connected to the side wall of the filter barrel (21); the waste bin (211) is arranged above the vibration bin (26); a waste barrel (212) is movably connected to the bottom of the waste bin (211); and the end of the filter bin (251) away from the connection bin (25) is connected to the waste bin (211).

6. The intelligent sand adding device for EMU according to claim 5, characterized in that: The bottom of the connecting chamber (25) is fixedly connected to a cleaning rod (27); one end of the cleaning rod (27) away from the connecting chamber (25) is fixedly connected to a cleaning brush (271); the bottom of the cleaning brush (271) abuts against the intercepting plate (213).

7. The intelligent sand adding device for EMU according to claim 6, characterized in that: The vibration boxes (261) are provided in multiple groups, and are arranged corresponding to the filter bins (251).

8. The intelligent sand adding device for EMU according to claim 7, characterized in that: Multiple groups of the diverter tubes (28) are provided; the multiple groups of the diverter tubes (28) are all fixedly connected to the delivery tube (4).

Images