Device for removing residual powder in ore transport carriage

Abstract

The present invention relates to a device for removing residual powder in an ore transport carriage, comprising a mounting seat with a horizontally extending plate and a lower vertically extending plate, wherein two horizontally extending augers are arranged in a space between the horizontally extending plate on one side of the mounting seat and the downward vertically extending plate, wherein a left augers and a right augers are respectively supported by bearing seats installed on the mounting seat, the rotation directions of the left augers and the right augers are opposite, and the facing ends of the left augers and the right augers are connected to a driving motor through a chain transmission device, and the driving motor is fixedly mounted on the horizontally extending plate, a main suction cylinder is arranged in the middle section of the mounting seat, and side suction cylinders are respectively arranged at both ends of the mounting seat, the inlet of the main suction cylinder corresponds to the facing ends of the left augers and the right augers, and the inlet of the side suction cylinder is located at the opposite ends of the left augers and the right augers, the side suction cylinder is connected to the main suction cylinder through a pipeline, the outlet end of the main suction cylinder is used for connecting a suction pipe, and a scraper is fixedly mounted on the lower end of the lower vertically extending plate.

Description

Technical Field

[0001] The invention relates to the field of cleaning of transport carriages, and in particular to a device for removing residual powder in an ore transport carriage. Background Art

[0002] Transport carriages are mainly used to hold and transport goods, and are widely used in freight trains and cars. When the goods held in the transport carriages are ore, a large amount of ore powder will remain on the bottom plate of the carriage after unloading. The amount of residual mineral powder will increase due to the influence of mineral material or humid weather. At present, the removal of residual ore powder can only be done by manual cleaning. Due to the influence of human factors, there is a situation where the cleaning is not thorough, and the efficiency of manual cleaning is also extremely low, which prolongs the transportation cycle. Especially the cleaning of transport carriages on freight trains, because there are many carriages that need to be cleaned, the time for cleaning the train transport carriages is further extended, delaying the operation of freight trains. Summary of the invention

[0003] The purpose of the present invention is to provide a device for removing residual powder in an ore transport carriage in view of the deficiencies in the prior art, which has high efficiency in removing residual powder, shortens the transport cycle, and has good cleaning effect.

[0004] The technical solution of the present invention is: a device for removing residual powder in an ore transport carriage, comprising a mounting seat with a horizontally extending plate and a lower vertically extending plate, wherein two horizontally extending augers are arranged in the space between the horizontally extending plate on one side of the mounting seat and the downward vertically extending plate, wherein the left augers and the right augers are respectively supported by bearing seats installed on the mounting seat, the rotation directions of the left augers and the right augers are opposite, and the facing ends of the left augers and the right augers are connected to the driving motor through a chain transmission device, and the driving motor is fixedly mounted on the horizontally extending plate, a main suction cylinder is arranged in the middle section of the mounting seat, and side suction cylinders are respectively arranged at both ends of the mounting seat, the inlet of the main suction cylinder corresponds to the facing ends of the left augers and the right augers, the inlet of the side suction cylinder is located at the opposite ends of the left augers and the right augers, the side suction cylinder is connected to the main suction cylinder through a pipeline, and the outlet end of the main suction cylinder is used to connect a suction pipe.

[0005] A guide sleeve with a lower opening is provided on the left and right sides of the main suction cylinder respectively, and two guide pillars are symmetrically installed on the upper end of the horizontal extension plate. The two guide pillars are respectively inserted into the left and right guide sleeves of the main suction cylinder to form guide limits, and a spring is installed between each guide pillar and the guide sleeve.

[0006] The chain transmission device includes a rotating shaft and a chain transmission mechanism. The two ends of the rotating shaft are circumferentially fixed to the opposite ends of the left auger and the right auger respectively. The driving sprocket of the chain transmission mechanism is circumferentially fixed to the motor shaft of the driving motor through a key. The driven sprocket of the chain transmission mechanism is circumferentially fixed to the rotating shaft through a key. A protective cover covering the driven sprocket is fixed on the mounting seat.

[0007] Limiting cuts are respectively arranged at both ends of the rotating shaft, and limiting holes are respectively arranged at the facing ends of the left and right auger. The rotating shaft is circumferentially fixed to the left and right auger through the cooperation of the limiting cuts and the limiting holes.

[0008] The left auger and the right auger both comprise a rotating shaft and a spiral blade, the spiral blade is fixed on the circumference of the rotating shaft, and the spiral blades of the left auger and the right auger have opposite rotation directions.

[0009] A limiting notch for limiting the main suction cylinder is provided on the rear side of the middle section of the horizontal extension plate, and a clearance notch is provided at the lower end of the middle section of the lower vertical extension plate. The inlet end of the main suction cylinder is bent forward and extended to limit the hook in the clearance notch of the lower vertical extension plate. A through hole is respectively provided on the rear side of the left and right ends of the horizontal extension plate, and side notches are respectively provided on the lower sides of the left and right ends of the lower vertical extension plate. The inlet end of the side suction cylinder is fitted in the side notch, and the outlet end of the side suction cylinder passes through the through hole of the horizontal extension plate and is connected to the upper end of the main suction cylinder through a pipeline.

[0010] The inlet of the main suction cylinder is in the shape of a strip hole, and the length of the strip inlet is greater than the distance between the opposite ends of the left auger and the right auger.

[0011] The driving motor is installed on the upper end of the horizontal extension plate through a bracket.

[0012] The scraper is made of felt or rubber.

[0013] A mounting lug is fixed on the side suction cylinder, and the mounting lug is fixedly connected to the mounting seat by bolts.

[0014] The above technical scheme is adopted: it includes a mounting seat with a horizontal extension plate and a lower vertical extension plate, two horizontally extending augers are arranged in the space between the horizontal extension plate and the downward vertical extension plate on one side of the mounting seat, wherein the left augers and the right augers are respectively supported on the bearing seats installed on the mounting seat, the rotation directions of the left augers and the right augers are opposite, the opposite ends of the left augers and the right augers are connected to the driving motor through a chain transmission device, the driving motor is fixedly installed on the horizontal extension plate, the middle section of the mounting seat is provided with a main suction cylinder, and the two ends of the mounting seat are respectively provided with side suction cylinders, the inlet of the main suction cylinder corresponds to the opposite ends of the left augers and the right augers, the inlet of the side suction cylinder is located at the opposite ends of the left augers and the right augers, the side suction cylinder is connected to the main suction cylinder through a pipeline, and the outlet end of the main suction cylinder is used to connect the suction pipe. When in use, first select the appropriate auger length according to the width of the carriage, and install the auger on the mounting seat, and then connect the outlet at the upper end of the main suction cylinder with the suction pipe of the vacuum pump. After that, the device is fixed on the lifting device of the gantry, so that the residual powder in the carriage can be removed by the device. During operation, the ore transport carriage moves forward with the car and passes through the gantry. When the front end of the transport carriage is just under the gantry, the lifting device of the gantry is controlled to drive the removal device to descend until the scraper of the removal device contacts the bottom plate of the carriage. The working drive motor will drive the left and right augers to rotate through the chain transmission device. At this time, the residual powder on the left and right sides of the mounting seat will be sucked away by the left and right side suction cylinders under the action of the vacuum pump, and most of the remaining residual powder will be rolled to the middle part by the left and right augers and sucked away by the main suction cylinder. In this process, the lower vertical extension plate of the mounting seat will block the residual powder, ensuring that the auger effectively drives the residual powder, so that the main suction cylinder can efficiently remove the residual powder. And the residual powder not rolled by the auger will also be scraped away by the scraper at the lower end of the vertical extension plate under the mounting seat, and the residual powder removal effect is good. As the transport carriage moves, the cleaning device will relatively clean the residual powder in the transport carriage from front to back until the cleaning device cleans to the rear end of the transport carriage. At this time, the cleaning device is controlled to rise through the lifting device of the gantry to make way for the removal of the transport carriage. When the next transport carriage begins to enter the gantry, the above steps can be repeated. In this way, the automatic cleaning of residual powder in the ore transport carriage is realized, the degree of automation is improved, and many problems caused by manual cleaning are solved. The cleaning device has a good cleaning effect on residual powder, and its cleaning efficiency is high, which shortens the transportation cycle. Even freight trains with multiple transport carriages can quickly complete the cleaning of residual powder, shortening the time wasted by freight trains due to cleaning residual powder, which brings great convenience to transportation. And when the device is used for transport carriages of different sizes, it only needs to replace augers of different lengths, and the device has good versatility.

[0015] The left and right sides of the main suction cylinder are respectively provided with guide sleeves with a lower opening, and two guide posts are symmetrically installed on the upper end of the horizontal extension plate. The two guide posts are respectively inserted into the left and right guide sleeves of the main suction cylinder to form a guide limit, and a spring is installed between each guide post and the guide sleeve. When the device encounters a protrusion on the bottom plate of the carriage, the mounting seat is forced to move upward and compress the spring, and the main suction cylinder remains stationary, thereby enabling the device to give way to the protrusion, preventing the auger from colliding and damaging the protrusion. The cooperation between the guide sleeve and the guide post has a guiding function, and the cooperation between the guide sleeve and the guide post also forms a limit to the main suction cylinder.

[0016] The chain transmission device includes a rotating shaft and a chain transmission mechanism. The two ends of the rotating shaft are circumferentially fixed to the opposite ends of the left and right augers respectively. The driving sprocket of the chain transmission mechanism is circumferentially fixed to the motor shaft of the driving motor through a key. The driven sprocket of the chain transmission mechanism is circumferentially fixed to the rotating shaft through a key. A protective cover covering the driven sprocket is fixed on the mounting seat. The driving motor drives the left and right augers simultaneously through the rotating shaft, and the transmission of the chain transmission mechanism is also stable and reliable. The two ends of the rotating shaft are respectively provided with limit cuts, and the opposite ends of the left and right augers are respectively provided with limit holes. The rotating shaft is circumferentially fixed to the left and right augers through the cooperation of the limit cuts and the limit holes. The connection between the rotating shaft and the augers is simple. The two ends of the rotating shaft can be inserted into the limit holes of the left and right augers. Through the cooperation of the limit cuts and the limit holes, the circumferential fixation between the rotating shaft and the augers is also stable and reliable.

[0017] The left auger and the right auger both include a rotating shaft and a spiral blade, the spiral blade is fixed on the circumference of the rotating shaft, and the spiral blades of the left auger and the right auger have opposite rotation directions. The structure of the auger is simple, and the spiral blade is mainly used to roll the residual powder during operation and transport the residual powder to the inlet of the main suction cylinder.

[0018] A limiting notch for limiting the main suction cylinder is provided at the rear side of the middle section of the horizontal extension plate, a clearance notch is provided at the lower end of the middle section of the lower vertical extension plate, the inlet end of the main suction cylinder is bent forward and extended to limit the hook in the clearance notch of the lower vertical extension plate, a through hole is provided at the rear side of the left and right ends of the horizontal extension plate, and side notches are provided at the lower side of the left and right ends of the lower vertical extension plate, the inlet end of the side suction cylinder is fitted in the side notch, and the outlet end of the side suction cylinder is connected to the upper end of the main suction cylinder through the through hole of the horizontal extension plate through the pipeline. The notches on the mounting seat form the positioning and limiting of the suction cylinder, which facilitates the installation of the main suction cylinder and the side suction cylinder, and after the main suction cylinder is fitted in the limiting notch and the clearance notch, the compactness of the device structure can be improved and the firmness of the structure can be increased.

[0019] The inlet of the main suction cylinder is in the shape of a strip hole, and the length of the strip inlet is greater than the distance between the opposite ends of the left auger and the right auger. The strip hole inlet is more conducive to the suction of the residual powder rolled by the auger, and the strip inlet of this length provides a sufficient suction cross section, ensuring that the main suction cylinder can efficiently suck the residual powder.

[0020] The drive motor is installed on the upper end of the horizontal extension plate through a bracket. The bracket facilitates the installation of the drive motor. During installation, the drive motor, the horizontal extension plate and the bracket can be fixed by bolts respectively.

[0021] The scraper is made of felt or rubber, which has a better effect of removing residual powder not rolled up by the auger, and the felt or rubber scraper can automatically avoid the protrusions on the bottom plate of the carriage, reducing the vibration of the device during operation.

[0022] The side suction cylinder is fixed with a mounting lug, which is fixedly connected to the mounting seat by bolts. The mounting lug is fixed to the side suction cylinder by welding, and the bolts are fixed to the mounting seat after passing through the through holes on the mounting lug, so that the side suction cylinder and the mounting seat are simply fixed.

[0023] The device for removing residual powder in the ore transport carriage realizes the automatic removal of residual powder in the ore transport carriage, and improves the degree of automation. It has a good effect on the removal of residual powder, high removal efficiency, good versatility, and shortens the transportation cycle. Even a freight train with multiple transport carriages can quickly complete the removal of residual powder, shortening the time wasted by the freight train due to the removal of residual powder, which brings great convenience to ore transportation.

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the cooperation between the left auger, the right auger and the mounting seat;

[0027] Figure 3 for Figure 2 Left view of

[0028] Figure 4 for Figure 2 Exploded image;

[0029] Figure 5 It is an exploded schematic diagram of a chain transmission device;

[0030] Figure 6 A schematic diagram of the cooperation between the main suction cylinder, the side suction cylinder and the mounting seat;

[0031] Figure 7 It is a schematic diagram of the cooperation between the guide column and the guide sleeve of the main suction cylinder;

[0032] Figure 8 The diagram is a schematic diagram of the coordination between the device for removing residual powder in the ore transport carriage and the gantry when in use.

[0033] In the accompanying drawings, 1 is a mounting seat, 1-1 is a horizontal extension plate, 1-2 is a lower vertical extension plate, 1-3 is a limiting notch, 1-4 is a yielding notch, 1-5 is a side notch, 1-6 is a through hole, 2 is a left auger, 3 is a driving motor, 4 is a bracket, 5 is a chain transmission device, 5-1 is a driving sprocket, 5-2 is a driven sprocket, 5-3 is a chain, 6 is a protective cover, 7 is a right auger, 8 is a main suction cylinder, 8-3 is a guide sleeve, 9 is a side suction cylinder, 10 is a pipeline, 11 is a bearing seat, 12 is a rotating shaft, 13 is a spiral blade, 14 is a scraper, 15 is a rotating shaft, 15-1 is a limiting cutting level, 16 is a guide column, 17 is a spring, 18 is a transport carriage, 19 is a gantry, and 19-1 is a lifting device. DETAILED DESCRIPTION

[0034] See also Figures 1 to 7A device for removing residual powder in an ore transport carriage, comprising a mounting seat 1 having a horizontal extension plate 1-1 and a lower vertical extension plate 1-2, and two horizontally extending augers are arranged in the space between the horizontal extension plate 1-1 and the downward vertical extension plate 1-2 on one side of the mounting seat 1. The left augers 2 and the right augers 7 are respectively supported on bearing seats 11 installed on the mounting seat 1, and the left augers 2 and the right augers 7 both include a rotating shaft 12 and a spiral blade 13, and the spiral blade 13 is fixed on the circumference of the rotating shaft 12. The spiral blades 13 of the left augers 2 and the right augers 7 have opposite rotation directions, and the structures of the left and right augers are simple. The facing ends of the left augers 2 and the right augers 7 are connected to the driving motor 3 through a chain transmission device 5, and the driving motor 3 is fixedly mounted on the upper end of the horizontal extension plate 1-1 through a bracket 4. The bracket 4 is in an "L" shape, and a straight arm of the "L" shape is fixed to the drive motor 3 by bolts, and the other straight arm is fixed to the horizontal extension plate 1-1 of the mounting seat 1 by bolts, so that the drive motor 3 is easy to install. The chain transmission device 5 includes a rotating shaft 15 and a chain transmission mechanism. The two ends of the rotating shaft 15 are circumferentially fixed to the opposite ends of the left auger 2 and the right auger 7 respectively. The driving sprocket 5-1 of the chain transmission mechanism is circumferentially fixed to the motor shaft of the drive motor 3 by a key, and the driven sprocket 5-2 of the chain transmission mechanism is circumferentially fixed to the rotating shaft 15 by a key. The driving sprocket 5-1 and the driven sprocket 5-2 are connected by a chain 5-3. The rotating shaft 15 realizes the simultaneous driving of the left and right augers by the drive motor 3, and the transmission of the chain transmission mechanism is also stable and reliable. A protective cover 6 covering the driven sprocket 5-2 is fixed on the mounting seat 1. The protective cover 6 forms a protection for the driven sprocket 5-2, so that the residual powder will not affect the power transmission of the chain transmission device 5, thereby ensuring the normal operation of the chain transmission mechanism. The two ends of the rotating shaft 15 are respectively provided with limit cutting flats 15-1, and the facing ends of the left auger 2 and the right auger 7 are respectively provided with limit holes 12-1. The rotating shaft 15 is circumferentially fixed to the left and right auger through the cooperation of the limit cutting flats 15-1 and the limit holes 12-1. The connection between the rotating shaft 15 and the auger is simple, and the two ends of the rotating shaft 15 can be inserted into the limit holes 12-1 of the left and right auger. Through the cooperation of the limit cutting flats 15-1 and the limit holes 12-1, the circumferential fixation between the rotating shaft 15 and the auger is also stable and reliable.

[0035] At the same time, the middle section of the mounting seat 1 is provided with a main suction cylinder 8, and the inlet 8-1 of the main suction cylinder 8 corresponds to the opposite ends of the left auger 2 and the right auger 7. The spiral blades 13 of the auger are mainly used to roll the residual powder during operation and transport the residual powder to the inlet 8-1 of the main suction cylinder 8. The inlet of the main suction cylinder 8 is in the shape of a strip hole, and the length of the strip inlet is greater than the distance between the opposite ends of the left auger 2 and the right auger 7. The strip hole-shaped inlet 8-1 is more conducive to the suction of the residual powder rolled by the auger. The strip inlet 8-1 of this length provides a sufficient suction cross section, ensuring that the main suction cylinder 8 can efficiently suck the residual powder. The left and right sides of the main suction cylinder 8 are respectively provided with guide sleeves 8-3 with a lower opening. The upper end of the horizontal extension plate 1-1 is symmetrically provided with two stepped shaft-shaped guide pillars 16. The two guide pillars 16 are respectively inserted into the left and right guide sleeves 8-3 of the main suction cylinder 8 to form a guide limit. A spring 17 is installed between the shaft shoulder of each guide pillar 16 and the guide sleeve 8-3. When the device encounters a protrusion on the bottom plate of the carriage during operation, the mounting seat 1 is forced to move upward and compress the spring 17, and the main suction cylinder 8 remains stationary, thereby achieving the device giving way to the protrusion, preventing the auger from colliding with a larger protrusion on the bottom plate of the carriage and being damaged. The cooperation between the guide sleeve 8-3 and the guide pillar 16 has a guiding function, and the cooperation between the guide sleeve 8-3 and the guide pillar 16 also forms a limit for the main suction cylinder 8. Side suction cylinders 9 are respectively provided at both ends of the mounting seat 1, and each side suction cylinder 9 is fixed with a mounting lug, and the mounting lug is fixedly connected to the mounting seat 1 by bolts. The mounting lug is fixed to the side suction cylinder 9 by welding, and the bolt is fixed to the mounting seat 1 after passing through the bolt through hole on the mounting lug. The side suction cylinder 9 and the mounting seat 1 are simply fixed. The inlet 9-1 of the left and right suction cylinders 9 is located at the opposite ends of the left auger 2 and the right auger 7, respectively. Each side suction cylinder 9 is connected to the outlet end of the main suction cylinder 8 through the pipeline 10, and the outlet end 8-2 of the main suction cylinder 8 is connected to the suction pipe of the vacuum pump. A limiting notch 1-3 for limiting the main suction cylinder 8 is provided on the rear side of the middle section of the horizontal extension plate 1-1, and a clearance notch 1-4 is provided at the lower end of the middle section of the lower vertical extension plate 1-2. The inlet end of the main suction cylinder 8 is bent forward and extended to limit the hook in the clearance notch 1-4 of the lower vertical extension plate 1-2. A through hole 1-6 is respectively provided on the rear sides of the left and right ends of the horizontal extension plate 1-1, and side notches 1-5 are respectively provided on the lower sides of the left and right ends of the lower vertical extension plate 1-2. The inlet end of the side suction cylinder 9 fits in the side notch 1-5, and the outlet end of the side suction cylinder 9 passes through the through hole 1-6 of the horizontal extension plate 1-1 and is connected with the upper end of the main suction cylinder 8 through the pipe 10. The notches on the mounting base 1 form a positioning and limiting function for the suction cylinder, facilitating the installation of the main suction cylinder 8 and the side suction cylinder 9. When the main suction cylinder 8 is fitted in the limiting notches 1-3 and the giving way notches 1-4, the compactness of the device structure can be improved, and the firmness of the structure can be increased.When assembling the main suction cylinder 8, first clamp the main suction cylinder 8 in the limiting notch 1-3 of the horizontal extension plate 1-1, then align the guide sleeve 8-3 with the guide column 16 and press down the main suction cylinder 8 until the curved inlet end of the main suction cylinder 8 hooks the yielding notch 1-4 of the lower vertical extension plate 1-2, thereby fixing the main suction cylinder 8 on the mounting seat 1, and also ensuring the normal operation of the spring 7, so that the device can yield to the protrusion on the floor of the car. The scraper 14 is fixedly installed at the lower end of the lower vertical extension plate 1-2. The scraper 14 is mainly used to scrape away a small amount of residual powder that is not rolled up by the auger. The scraper 14 is made of felt or rubber. In this embodiment, a felt scraper 14 is selected. Felt and rubber have a better effect on removing residual powder that is not rolled up by the auger, and the felt or rubber scraper 14 can automatically avoid the protrusion on the floor of the car, reducing the vibration of the device during operation.

[0036] When using, Figure 8As shown, first select a suitable auger length according to the width of the transport carriage 18, and install the auger on the mounting seat 1, and then connect the outlet 8-2 at the upper end of the main suction cylinder 8 to the suction pipe of the vacuum pump. Then fix the device on the lifting device 19-1 of the gantry 19, so that the residual powder in the transport carriage 18 can be removed by the device. During operation, the ore transport carriage 18 moves forward with the car and passes through the gantry 19. When the front end of the transport carriage 18 is just under the gantry 19, the lifting device 19-1 of the gantry 19 is controlled to drive the cleaning device to descend until the scraper 14 of the cleaning device contacts the bottom plate of the carriage. At this time, in order to prevent the auger from colliding with the protrusion of the carriage bottom plate, a small gap should be left between the left and right augers and the carriage bottom plate. The working driving motor 3 will drive the left auger 2 and the right auger 7 to rotate through the chain transmission device 5. At this time, the residual powder located on the left and right sides of the mounting seat 1 will be sucked away by the left and right side suction cylinders 9 under the action of the vacuum pump, and most of the remaining residual powder will be rolled to the middle part by the left and right auger and sucked away by the main suction cylinder 8. In this process, the lower vertical extension plate 1-2 of the mounting seat 1 will block the residual powder, ensuring that the auger effectively drives the residual powder, so that the main suction cylinder 8 can efficiently remove the residual powder. And the residual powder not rolled by the auger will also be scraped away by the felt scraper 4 at the lower end of the lower vertical extension plate 1-2 of the mounting seat 1, and the residual powder removal effect is good. As the transport carriage 18 moves, the cleaning device will relatively remove the residual powder in the transport carriage 18 from front to back until the cleaning device removes it to the rear end of the transport carriage 18. At this time, the lifting device 19-1 of the gantry 19 controls the cleaning device to rise to make way for the removal of the transport carriage 18. When the next transport carriage 18 begins to enter the gantry 19, the above steps can be repeated. In this way, the residual powder in the ore transport carriage 18 can be automatically removed, the degree of automation is improved, and many problems caused by manual removal are solved. The removal device has a good effect on removing residual powder, and its removal efficiency is high, which shortens the transportation cycle. Even a freight train with multiple transport carriages can quickly complete the removal of residual powder, shortening the time wasted by the freight train due to the removal of residual powder, which brings great convenience to transportation. And when the device is used for transport carriages 18 of different sizes, it only needs to replace the augers of different lengths, and the device has good versatility.

Claims

1. A device for removing residual powder in an ore transport carriage, characterized in that: The invention comprises a mounting seat (1) having a horizontal extension plate (1-1) and a lower vertical extension plate (1-2), wherein two horizontally extending augers are arranged in a space between the horizontal extension plate (1-1) and the downward vertical extension plate (1-2) on one side of the mounting seat (1), wherein the left augers (2) and the right augers (7) are respectively supported on bearing seats (11) mounted on the mounting seat (1), wherein the left augers (2) and the right augers (7) have opposite rotation directions, and the opposite ends of the left augers (2) and the right augers (7) are connected by a chain transmission device. (5) is connected to a drive motor (3), the drive motor (3) is fixedly mounted on the horizontal extension plate (1-1), a main suction cylinder (8) is arranged in the middle section of the mounting seat (1), and side suction cylinders (9) are respectively arranged at both ends of the mounting seat (1), an inlet of the main suction cylinder (8) corresponds to the opposite ends of the left auger (2) and the right auger (7), an inlet of the side suction cylinder (9) is located at the opposite ends of the left auger (2) and the right auger (7), and the side suction cylinder (9) is connected to the main suction cylinder (8) through a pipeline (10). The outlet end of the main suction cylinder (8) is used to connect the suction pipe, and the scraper (14) is fixedly installed at the lower end of the lower vertical extension plate (1-2); the left and right sides of the main suction cylinder (8) are respectively provided with a guide sleeve (8-3) with a lower opening, and the upper end of the horizontal extension plate (1-1) is symmetrically installed with two guide columns (16), and the two guide columns (16) are respectively inserted into the left and right guide sleeves (8-3) of the main suction cylinder (8) to form a guide limit, and each guide column (16) is installed between the guide sleeve (8-3). a spring (17); the chain transmission device (5) comprises a rotating shaft (15) and a chain transmission mechanism, the two ends of the rotating shaft (15) are respectively circumferentially fixed to the opposite ends of the left auger (2) and the right auger (7), the driving sprocket (5-1) of the chain transmission mechanism is circumferentially fixed to the motor shaft of the driving motor (3) via a key, the driven sprocket (5-2) of the chain transmission mechanism is circumferentially fixed to the rotating shaft (15) via a key, and a protective cover (6) covering the driven sprocket (5-2) is fixedly mounted on the mounting seat (1).

2. The device for removing residual powder in the ore transport carriage according to claim 1 is characterized in that: Limiting flats (15-1) are respectively provided at both ends of the rotating shaft (15), and limiting holes (12-1) are respectively provided at the facing ends of the left auger (2) and the right auger (7), and the rotating shaft (15) is circumferentially fixed to the left and right auger through the cooperation of the limiting flats (15-1) and the limiting holes (12-1).

3. The device for removing residual powder in the ore transport carriage according to claim 1 is characterized in that: The left auger (2) and the right auger (7) both comprise a rotating shaft (12) and a spiral blade (13); the spiral blade (13) is fixed on the circumference of the rotating shaft (12); and the spiral blades (13) of the left auger (2) and the right auger (7) have opposite rotation directions.

4. The device for removing residual powder in an ore transport carriage according to claim 1, characterized in that: A limiting notch (1-3) for limiting the main suction cylinder (8) is provided at the rear side of the middle section of the horizontal extension plate (1-1), a clearance notch (1-4) is provided at the lower end of the middle section of the lower vertical extension plate (1-2), the inlet end of the main suction cylinder (8) is bent forward and extended to limit the hook in the clearance notch (1-4) of the lower vertical extension plate (1-2), a through hole (1-6) is provided on the rear side of the left and right ends of the horizontal extension plate (1-1), and side notches (1-5) are provided on the lower side of the left and right ends of the lower vertical extension plate (1-2), the inlet end of the side suction cylinder (9) is fitted in the side notch (1-5), and the outlet end of the side suction cylinder (9) passes through the through hole (1-6) of the horizontal extension plate (1-1) and is connected to the upper end of the main suction cylinder (8) through a pipe (10).

5. The device for removing residual powder in an ore transport carriage according to claim 1, characterized in that: The inlet of the main suction cylinder (8) is in the shape of a strip hole, and the length of the strip inlet is greater than the distance between the facing ends of the left auger (2) and the right auger (7).

6. The device for removing residual powder in an ore transport carriage according to claim 1, characterized in that: The driving motor (3) is mounted on the upper end of the horizontal extension plate (1-1) via a bracket (4).

7. The device for removing residual powder in an ore transport carriage according to claim 1, characterized in that: The scraper (14) is made of felt or rubber.

8. The device for removing residual powder in an ore transport carriage according to claim 1, characterized in that: A mounting lug is fixed on the side suction cylinder (9), and the mounting lug is fixedly connected to the mounting seat (1) via bolts.

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