Cleaning device and spiral unloading machine

Abstract

The present disclosure relates to a cleaning device and a spiral unloading machine, the cleaning device comprising: a support, the support being arranged to be movable in a first horizontal direction and a vertical direction within a carriage; a cleaning mechanism, the cleaning mechanism being arranged on the support and being movable with the support to clean residual coal on a bottom of the carriage; and a guide mechanism, the guide mechanism being arranged on one side of the cleaning mechanism in the first horizontal direction, the guide mechanism comprising a connecting assembly movably connected to the support and a scraper assembly connected to a bottom end of the connecting assembly, the scraper assembly having a first position and a second position; in the first position, the scraper assembly abuts against a bottom wall of the carriage; in the second position, the scraper assembly is away from the bottom wall of the carriage; when the support drives the guide mechanism to move in the first horizontal direction to abut against an inner side wall of the carriage, the scraper assembly is switched from the first position to the second position, so that the cleaning device can efficiently clean residual coal within the carriage.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of coal unloading residual coal cleaning, in particular, relates to a cleaning device and a spiral unloading machine. BACKGROUND

[0002] The spiral unloading machine is a high-efficiency mechanized unloading equipment, mainly used for unloading coal, gravel, sand ore powder and other bulk materials. It is widely used in metallurgy, mining, chemical industry, thermal power plant, wharf and freight yard unloading operations. Taking the thermal power plant as an example, the bridge type double-arm spiral unloading machine is basically used. When unloading coal, open the two sides of the car body, the unloading machine is opened above the car body, and the coal is unloaded into the unloading coal groove from top to bottom by relying on the lifting mechanism and the spiral, and the coal in the car body is basically unloaded by moving the unloading machine along the length of the car body.

[0003] Because the bottom of the car body of different types of coal cars is different from the height of the rail, in order to prevent the spiral from colliding with the bottom of the car body and causing damage to the spiral or the car body, in general, the limiting device is used to keep a certain distance between the descending spiral and the bottom of the car body to avoid collision. Therefore, after the spiral unloading coal, the bottom of the car body often leaves several tons to tens of tons of coal. The treatment of residual coal is usually to replace the spiral of one side of the bridge type double-arm spiral unloading machine with a cleaning device. This way, the modified equipment can be used for unloading and cleaning, but the scraper of the single-arm cleaning device described above is on one side. Affected by the scraper on one side of the cleaning device, the cleaning brush cannot clean the end of the car body on the scraper side, that is, it cannot clean the residual coal at the end of the car body on the scraper side, and the cleaning efficiency is low. SUMMARY

[0004] The purpose of the present disclosure is to provide a cleaning device and a spiral unloading machine, which can efficiently clean the residual coal in the car body to at least partially solve the problems in the related art.

[0005] In order to achieve the above object, the present disclosure provides a cleaning device for cleaning residual coal in a car, comprising: a support capable of moving in a first horizontal direction and a vertical direction within the car; a cleaning mechanism arranged on the support and capable of moving with the support to clean residual coal on the bottom of the car; and a flow guide mechanism arranged on one side of the cleaning mechanism in the first horizontal direction, comprising a connecting assembly movably connected to the support and a scraper assembly connected to the bottom end of the connecting assembly, the scraper assembly having a first position and a second position; wherein, in the first position, the scraper assembly abuts against the bottom wall of the car to guide the residual coal on the bottom of the car; in the second position, the scraper assembly is away from the bottom wall of the car to enable the cleaning mechanism to clean the residual coal on the bottom of the car; when the support drives the flow guide mechanism to move in the first horizontal direction to abut against the inner side wall of the car, the scraper assembly is switched from the first position to the second position.

[0006] Optionally, the number of connecting assemblies is multiple and arranged in a second horizontal direction perpendicular to the first horizontal direction.

[0007] Optionally, the connecting assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod and the second connecting rod are arranged in a vertical direction, the first ends of the first connecting rod and the second connecting rod are hingedly connected to the support, the second ends of the first connecting rod and the second connecting rod are hingedly connected to the third connecting rod, and the bottom end of the third connecting rod is fixedly connected to the scraper assembly.

[0008] Optionally, the number of flow guide mechanisms is two, the two flow guide mechanisms are respectively located on both sides of the cleaning mechanism, the flow guide mechanism further comprises a switching assembly, the switching assembly is located on the support and connected to the two connecting assemblies on both sides of the cleaning mechanism, and the switching assembly is used to switch the scraper assembly on one side of the car to the first position and the scraper assembly on the other side of the car to the second position when one of the two scraper assemblies on both sides of the cleaning mechanism abuts against the inner side wall of the car.

[0009] Optionally, the switching assembly comprises a connecting rod, a positioning column and a switching mechanism, both ends of the connecting rod are hingedly connected to the connecting assemblies on both sides of the cleaning mechanism, the middle part of the connecting rod is provided with a first connecting hole, the positioning column is arranged in the first connecting hole and fixedly connected to the support, and the switching mechanism is located below the positioning column and hingedly connected to the middle part of the connecting rod.

[0010] Optionally, the switching mechanism is a spring switching mechanism, the spring switching mechanism comprises a connecting seat, a first connecting end of the connecting seat is hingedly connected with the support, a second connecting end is provided with a second connecting hole, a middle part of the connecting rod is provided with protrusions, part of the protrusions are arranged in the second connecting hole and can slide in the second connecting hole, an outer periphery of the connecting seat is sleeved with a spring, and a snap ring capable of sliding along the connecting seat is arranged at the second connecting end, a first end of the spring is fixedly connected with the connecting seat, and a second end is abutted with the snap ring.

[0011] Optionally, the scraper assembly comprises a connecting plate and a scraper, one end of the connecting plate is fixedly connected with the connecting assembly, the other end is fixedly connected with the scraper, and the scraper extends along a second horizontal direction.

[0012] Optionally, the cleaning mechanism comprises a cleaning support, a driving assembly, a transmission assembly and a cleaning disc, the cleaning support is fixed on the support, the upper part of the cleaning support is provided with the driving assembly, and the lower part is provided with the cleaning disc, and the driving assembly is in transmission connection with the cleaning disc through the transmission assembly.

[0013] Optionally, the cleaning device further comprises a stopper, the stopper is located between the connecting assembly and the support and extends towards one side of the connecting assembly.

[0014] The second aspect of the present disclosure provides a spiral unloading machine, comprising a cart walking mechanism, a trolley walking mechanism, a lifting mechanism, a rotating mechanism, a discharging mechanism and the above-mentioned cleaning device, the trolley walking mechanism is arranged on the cart walking mechanism, two mounting arms are arranged on the trolley walking mechanism, the lifting mechanism is arranged on each mounting arm, the rotating mechanism is arranged on the lifting mechanism, one of the rotating mechanisms is provided with the discharging mechanism, and the other rotating mechanism is provided with the cleaning device.

[0015] By the technical scheme, the support can move in the first horizontal direction and the vertical direction in the carriage, the cleaning mechanism and the flow guide mechanism provided on the support are placed into the inside of the carriage by moving the support in the vertical direction, the flow guide mechanism comprises a connecting assembly and a scraper assembly, by moving the support in the first horizontal direction in the carriage, the cleaning mechanism can clean the residual coal in the carriage and discharge the residual coal out of the carriage through the flow guide mechanism, the scraper assembly has a first position and a second position, when in the first position, the scraper assembly first moves in the vertical direction in the carriage and abuts against the bottom wall of the carriage, then the support moves in the first horizontal direction, the cleaning mechanism cleans the residual coal in the carriage according to the set path and guides the cleaned residual coal to be discharged out of the carriage along the scraper assembly, when the support drives the flow guide mechanism to move in the first horizontal direction and abut against the inner side wall of the carriage, the scraper assembly is switched from the first position to the second position, at this time, the scraper assembly is away from the bottom wall of the carriage, and the cleaning mechanism can clean the residual coal at the intersection of the inner bottom wall and the inner side wall of the carriage, and the above working process can be repeated to discharge the residual coal in the carriage.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0018] Figure 1 is a structural schematic view of a first spiral unloading machine provided in an exemplary embodiment of the present disclosure;

[0019] Figure 2 is a structural schematic view of a cleaning state of the first spiral unloading machine provided in the exemplary embodiment of the present disclosure;

[0020] Figure 3 is a front structural schematic view of a first cleaning device provided in the exemplary embodiment of the present disclosure;

[0021] Figure 4 is a structural schematic view of a first position of a scraper assembly in the first cleaning device provided in the exemplary embodiment of the present disclosure;

[0022] Figure 5 is a structural schematic view of a second position of the scraper assembly in the first cleaning device provided in the exemplary embodiment of the present disclosure;

[0023] Figure 6 is a structural schematic view of a second spiral unloading machine provided in the exemplary embodiment of the present disclosure;

[0024] Figure 7is a front view structural schematic diagram of a second cleaning device provided in the exemplary embodiments of the present disclosure;

[0025] Figure 8 is a right view structural schematic diagram of the second cleaning device provided in the exemplary embodiments of the present disclosure;

[0026] Figure 9 is a top view structural schematic diagram of the second cleaning device provided in the exemplary embodiments of the present disclosure.

[0027] Legend of Reference Signs

[0028] 1 - support; 11 - vertical support beam; 12 - longitudinal support beam; 2 - carriage; 3 - cleaning mechanism; 31 - cleaning support; 32 - driving assembly; 33 - transmission assembly; 34 - cleaning disc; 4 - flow guide mechanism; 5 - connecting assembly; 51 - first connecting rod; 52 - second connecting rod; 53 - third connecting rod; 54 - hinged seat; 6 - scraper assembly; 61 - connecting plate; 62 - scraper; 7 - stopper; 8 - switching assembly; 81 - connecting rod; 811 - protrusion; 82 - positioning column; 83 - switching mechanism; 831 - connecting seat; 832 - second connecting hole; 833 - spring; 834 - snap ring; 84 - first connecting hole; 9 - cart traveling mechanism; 91 - trolley traveling mechanism; 92 - unloading mechanism; 93 - mounting arm; 10 - frame. DETAILED DESCRIPTION

[0029] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0030] In the present disclosure, unless otherwise stated, the "first horizontal direction" is specifically the length direction of the carriage in Figure 2 , and the "second horizontal direction" is specifically the width direction of the carriage in Figure 2 , and the "vertical direction" is specifically the vertical direction in the drawing shown in Figure 2 , and the orientation words such as "up and down" are generally defined according to the use state of the cleaning device, and can be specifically referred to the drawing direction shown in Figure 4 , and "inner and outer" refer to the contour of the corresponding parts, in addition, the terms "first", "second" and the like used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance. In the following description, when referring to the drawings, the same numerals in different drawings represent the same or similar elements, unless otherwise indicated.

[0031] As shown in Figures 1-9As shown, the present disclosure provides a cleaning device for cleaning residual coal in a car 2, which comprises a support 1, the support 1 is arranged to be movable in a first horizontal direction and a vertical direction within the car 2; a cleaning mechanism 3 arranged on the support 1 and movable with the support 1, used to clean the residual coal at the bottom of the car 2; and a flow guide mechanism 4 arranged on one side of the cleaning mechanism 3 in the first horizontal direction, comprising a connecting assembly 5 movably connected to the support 1 and a scraper assembly 6 connected to the bottom end of the connecting assembly 5, the scraper assembly 6 has a first position and a second position; wherein, in the first position, the scraper assembly abuts the bottom wall of the car 2 to guide the residual coal at the bottom of the car 2; in the second position, the scraper assembly 6 is away from the bottom wall of the car 2, so that the cleaning mechanism 3 can clean the residual coal at the bottom of the car 2; when the support 1 drives the flow guide mechanism 4 to move in the first horizontal direction to abut the inner side wall of the car 2, the scraper assembly 6 is switched from the first position to the second position.

[0032] Through the above technical scheme, the support 1 can move in the first horizontal direction and the vertical direction within the car 2, the cleaning mechanism 3 and the flow guide mechanism 4 arranged on the support 1 are placed inside the car 2 by moving the support 1 in the vertical direction, wherein the flow guide mechanism 4 comprises a connecting assembly 5 and a scraper assembly 6, by moving the support 1 in the first horizontal direction within the car 2, the cleaning mechanism 3 can clean the residual coal in the car 2 and discharge it out of the car 2 through the flow guide mechanism 4, the scraper assembly 6 has a first position and a second position, in the first position, the scraper assembly 6 first abuts the bottom wall of the car 2 by moving in the vertical direction within the car 2 with the support 1, then follows the support 1 to move in the first horizontal direction, the cleaning mechanism 3 cleans the residual coal in the car 2 according to the set path and guides the cleaned residual coal out of the car 2 along the scraper assembly 6 through the scraper assembly 6, when the support 1 drives the flow guide mechanism 4 to move in the first horizontal direction to abut the inner side wall of the car 2, the scraper assembly 6 is switched from the first position to the second position, at this time, the scraper assembly 6 is away from the bottom wall of the car 2, the cleaning mechanism 3 can clean the residual coal at the intersection of the inner bottom wall and the inner side wall of the car 2, and the above working process can be repeated multiple times to discharge the residual coal in the car 2.

[0033] For reference Figure 3 , Figure 4 In some implementable ways, the support 1 comprises two vertical support beams 11 and two longitudinal support beams 12, the two vertical support beams 11 are arranged in a spaced manner in the first horizontal direction, two longitudinal support beams 12 are arranged between the upper and lower parts of the two vertical support beams 11 respectively, the two ends of the two longitudinal support beams 12 are fixedly connected to the inner side walls of the corresponding two vertical support beams 11 respectively, the connecting assembly 5 in the flow guide mechanism 4 is fixed on the two vertical support beams 11, and the cleaning mechanism 3 is rotatably arranged on the lower longitudinal support beam 12.

[0034] In order to improve the connection strength of the scraper assembly 6, in some embodiments, the number of the connection assemblies 5 is multiple and arranged in a second horizontal direction perpendicular to the first horizontal direction. For example, the number of the connection assemblies 5 is three and arranged in the second horizontal direction perpendicular to the first horizontal direction respectively, one end of each of the connection assemblies 5 is hingedly connected with the support 1, and the other end of the connection assembly 5 is hingedly connected with the scraper assembly 6, so that the connection strength of the scraper assembly 6 and the support 1 can be improved by the arrangement of the three connection assemblies 5, so that the scraper assembly 6 is more stable when switching between the first position and the second position. It can be understood that the number of the connection assemblies 5 is three, which is illustrative, and in other embodiments, the number can be other numbers, which are not limited in the present disclosure.

[0035] Specifically, in some embodiments, for example, the connection assembly 5 can be composed of multiple connecting rods, that is, the connection assembly 5 can include a first connecting rod 51, a second connecting rod 52, and a third connecting rod 53, the first connecting rod 51, the second connecting rod 52, and the third connecting rod 53 can be steel rods, the lengths of the first connecting rod 51 and the second connecting rod 52 can be equal, both ends of the first connecting rod 51 and the second connecting rod 52 are respectively provided with hinged holes, the support 1 is provided with a hinged seat 54 matched with the first connecting rod 51 and the second connecting rod 52, the first connecting rod 51 and the second connecting rod 52 are arranged in a vertical direction, the third connecting rod 53 is arranged in the same direction as the vertical direction and is provided with a matched hole matched with the hinged holes of the first connecting rod 51 and the second connecting rod 52, the first end of the first connecting rod 51 is hingedly connected with the corresponding hinged seat 54, and the second end is hingedly connected with the matched hole on the third connecting rod 53, the first end of the second connecting rod 52 is hingedly connected with the corresponding hinged seat 54, and the second end is hingedly connected with the matched hole on the third connecting rod 53, and the bottom end of the third connecting rod 53 is fixedly connected with the scraper assembly 6, so that the first connecting rod 51, the second connecting rod 52, the third connecting rod 53, and the support 1 form a four-bar linkage mechanism, the connection strength of the scraper assembly 6 and the support 1 can be improved by the arrangement of the four-bar linkage mechanism, so that the scraper assembly 6 can be stably switched between the first position and the second position, and at the same time, in the first position, the scraper assembly 6 has sufficient strength to abut against the bottom wall of the carriage 2 and can stably guide the residual coal at the bottom of the carriage 2.

[0036] It can be understood that the structure of the above-mentioned connecting assembly 5 composed of a plurality of connecting rods is illustrative, and in other embodiments, the connecting assembly 5 can also be other connection modes, for example, the connecting assembly 5 can also include a fixed inclined plate, the first end of the inclined plate is fixedly connected with the support 1, the inclined plate extends along the first horizontal direction, the first end of the inclined plate is higher than the second end of the inclined plate, a slide is provided in the extension direction of the inclined plate, a sliding block is provided in the slide, an installation portion is provided on the sliding block, and the installation portion is used to install the scraper assembly 6, so that when the sliding block slides in the slide under the action of gravity and is located at the lowest point of the slide, the corresponding scraper assembly 6 is in the first position, when the support 1 drives the flow guide mechanism 4 to move in the first horizontal direction to abut against the inner side wall of the carriage 2, the sliding block slides upward in the slide from the lowest point along the slide, thereby driving the scraper assembly 6 to separate from the bottom wall of the carriage 2, at this time, the scraper assembly 6 is switched from the first position to the second position.

[0037] In some embodiments, in order to facilitate the installation of the scraper assembly 6, in some embodiments, the scraper assembly 6 includes a connecting plate 61 and a scraper 62, one end of the connecting plate 61 is fixedly connected with the connecting assembly 5, the other end is fixedly connected with the scraper 62, and the scraper 62 extends along the second horizontal direction. For example, the connecting assembly 5 includes a first connecting rod 51, a second connecting rod 52 and a third connecting rod 53, the connecting plate 61 is detachably connected with the bottom end of the third connecting rod 53 through fasteners, the connecting plate 61 can be a metal plate, and the scraper 62 can be a rubber belt, the rubber belt includes a rigid portion and a flexible portion, the rigid portion is detachably connected with the metal plate through fasteners, and the flexible portion abuts against the inner bottom wall in the carriage 2, so that the scraper assembly 6 is detachably connected with the metal plate through fasteners, and the metal plate is detachably connected with the bottom end of the corresponding third connecting rod 53 through fasteners, thereby fixing the scraper assembly 6 with the connecting assembly 5, when the scraper 62 is used for a period of time and is worn, there is a gap between the scraper 62 and the inner bottom wall of the carriage 2, which causes the flow guiding effect of the scraper 62 to weaken, at this time, the metal plate can be moved towards the inner bottom wall of the carriage 2 to abut the scraper 62 against the inner bottom wall of the carriage 2, thereby restoring the flow guiding effect of the scraper 62, of course, the scraper 62 and the metal plate can also be detached, and then the position between the scraper 62 and the metal plate is changed, that is, the scraper 62 is moved towards the inner bottom wall of the carriage 2 to abut the scraper 62 against the inner bottom wall of the carriage 2, thereby restoring the flow guiding effect of the scraper 62.

[0038] It can be understood that the number of connecting plates 61 and scrapers 62 in the above-mentioned scraper assembly 6 can be one or more. When the number of connecting plates 61 and scrapers 62 is more than one, the number of connecting plates 61 and scrapers 62 is equal to the number of third connecting rods 53, and there is an overlapping area between adjacent scrapers 62, so that the plurality of scrapers 62 can form an uninterrupted flow guide to guide the residual coal along the flow guide out of the carriage 2. The rigid part and the flexible part of the above-mentioned scraper 62 can be integrated, or can be fixed and assembled together by fasteners.

[0039] In order to facilitate the cleaning of the residual coal in the carriage 2, in some implementable ways, the cleaning mechanism 3 includes a cleaning support 31, a driving assembly 32, a transmission assembly 33, and a cleaning disc 34. The cleaning support 31 can be fixed in the upper longitudinal beam 12 of the support 1 by fasteners. The upper part of the cleaning support 31 is provided with the driving assembly 32, and the lower part is provided with the cleaning disc 34. The driving assembly 32 can be configured as a variable frequency motor. The motor base of the variable frequency motor is fixed on the cleaning support 31. The output end of the variable frequency motor passes through the cleaning support 31 and is in transmission connection with the cleaning disc 34 through the transmission assembly 33. The transmission assembly 33 can be a shaft coupling, a transmission shaft, and a reduction box. The reduction box is fixed on the lower longitudinal beam 12 of the support 1. The input end of the reduction box is in transmission connection with the transmission shaft through the shaft coupling, and the output end of the reduction box is in transmission connection with the cleaning disc 34 through the shaft coupling. The cleaning disc 34 includes a cleaning disc seat. A brush disc is arranged on the cleaning disc seat and faces the inner bottom wall of the carriage 2. The brush disc includes a plurality of arc-shaped sweep plates. The arc-shaped sweep plates are sequentially and equidistantly arranged along the central axis of the cleaning disc seat. The bottom of the arc-shaped sweep plate is provided with a brush. Therefore, when the residual coal in the carriage 2 is cleaned, the variable frequency motor can be driven to rotate the cleaning disc 34, thereby driving the arc-shaped sweep plates on the cleaning disc 34 to clean the residual coal at the bottom of the carriage 2, especially at the intersection between the inner side wall and the inner bottom wall of the carriage 2. Therefore, the residual coal in the carriage 2 can be centrifuged under the rotation of the arc-shaped sweep plates, thereby throwing the material out of the carriage 2. The sweep plates 62 can clean the irregular corners at the bottom of the carriage 2. At the same time, the flexible part of the sweep plates 62 can effectively collect the irregular or uneven carriage bottom, thereby achieving higher cleaning efficiency. The rigid part of the sweep plates 62 can gather and accumulate dust during the advancing process, and drive the cleaned residual coal to move in a certain direction, thereby ensuring that the cleaned area is clean and tidy.

[0040] It can be understood that the number of cleaning mechanisms 3 can be more than one, and they are arranged at intervals along the second horizontal direction. The arc-shaped sweep plates in adjacent two cleaning mechanisms 3 have an intersection, thereby covering a larger range of the inner bottom wall of the carriage 2 to improve the cleaning quality of the cleaning mechanism 3 on the residual coal in the carriage 2.

[0041] In order to prevent the inner side wall of the car 2 from excessively extruding the connecting assembly 5, in some implementable manners, the cleaning device further comprises a stopper 7 located between the connecting assembly 5 and the support 1 and extending towards one side of the connecting assembly 5. For example, the stopper 7 can be a steel column, one end of which is fixedly connected with the vertical support beam 11 on the support 1 and extends towards one side of the connecting assembly 5. Through the arrangement of the stopper 7, when the connecting assembly 5 abuts against the inner side wall of the car 2 and is lifted in the vertical direction until the scraper assembly 6 connected with the connecting assembly 5 switches from the first position to the second position, at this time, the stopper 7 abuts against the inner side wall of the car 2, so that the arrangement of the stopper 7 can protect the connecting assembly 5 and avoid the support 1 being too close to the inner side wall of the car 2 to crush the connecting assembly 5.

[0042] In addition, in order to further improve the cleaning efficiency, in some implementable manners, please refer to Figures 6-9 , the number of the flow guide mechanism 4 is two, and the two flow guide mechanisms 4 are located on both sides of the cleaning mechanism 3. The flow guide mechanism 4 further comprises a switching assembly 8 located on the support 1 and connected with the two connecting assemblies 5 on both sides of the cleaning mechanism 3. In this way, through the arrangement of the switching assembly 8, when one of the scraper assemblies 6 on both sides of the cleaning mechanism 3 abuts against the inner side wall of the car 2, the scraper assembly 6 close to the car 2 is located at the second position, and the scraper assembly 6 away from the car 2 is located at the first position, so that there is a gap between the scraper assembly 6 close to the car 2 and the inner bottom wall of the car 2, so that the cleaning mechanism 3 on this side can clean the connection between the inner bottom wall and the inner side wall of the car 2, and the residual coal after cleaning is thrown to the scraper assembly 6 on the other side, which guides the residual coal to be discharged through the scraper assembly 6 on the other side. In this way, the support 1 is moved in the opposite direction to clean the connection between the inner bottom wall and the inner side wall on the other side of the car 2, and the residual coal after cleaning is thrown to the scraper assembly 6 on the side arranged opposite, which guides the residual coal to be discharged through the scraper assembly 6 on the other side. In this way, through the arrangement of two flow guide mechanisms 4 and the switching assembly 8, the number of times of moving the support 1 in the first horizontal direction in the car 2 is reduced, so that the cleaning efficiency can be improved.

[0043] Specifically, please continue to refer to Figure 7 and Figure 8The switching assembly 8 comprises a connecting rod 81, a positioning column 82 and a switching mechanism 83. The two ends of the connecting rod 81 are respectively hingedly connected with the connecting assemblies 5 located on both sides of the cleaning mechanism 3. The middle part of the connecting rod 81 is provided with a first connecting hole 84. The positioning column 82 is arranged in the first connecting hole 84 and is fixedly connected with the support 1. The switching mechanism 83 is located below the positioning column 82 and is hingedly connected with the middle part of the connecting rod 81. For example, the two ends of the connecting rod 81 are respectively provided with hinged holes and are hingedly connected with the middle part of the third connecting rod 53 corresponding to the two ends through a hinged shaft. The support 1 is provided with a positioning plate for fixing the positioning column 82. The first connecting hole 84 provided in the middle part of the connecting rod 81 can be a strip-shaped hole extending along the length direction of the connecting rod 81. The first connecting hole 84 is sleeved on the positioning column 82 and is slidably and rotatably connected with the positioning column 82. The switching mechanism 83 can be fixed on the positioning plate. The switching mechanism 83 is also hingedly connected with the connecting rod 81. The switching mechanism 83 is arranged to be capable of selectively contacting the positioning column 82 at both ends of the strip-shaped hole in the connecting rod 81 when the two squeegee assembly 6 at both ends of the connecting rod 81 are switched, so that one of the two squeegee assembly 6 located at both ends of the connecting rod 81 is located at the second position when it abuts against the inner side wall of the carriage 2. The other squeegee assembly 6 is located at the first position through the switching mechanism 83, so that the two squeegee assembly 6 can be switched without being clamped in the middle transition position. When one of the squeegee assembly 6 located on both sides of the cleaning mechanism 3 abuts against the inner side wall of the carriage 2, the squeegee assembly 6 close to the carriage 2 is located at the second position, and the squeegee assembly 6 away from the carriage 2 is located at the first position, so that the squeegee assembly 6 close to the carriage 2 has a gap with the inner bottom wall of the carriage 2, so that the cleaning mechanism 3 on this side can clean the connection between the inner bottom wall and the inner side wall of the carriage 2, and the residual coal after cleaning is thrown to the squeegee assembly 6 on the other side, and the residual coal is discharged through the squeegee assembly 6 on the other side. In this way, the support 1 is moved reversely, the connection between the inner bottom wall and the inner side wall on the other side in the carriage 2 is cleaned, and the residual coal after cleaning is thrown to the squeegee assembly 6 on the side opposite to the other side, and the residual coal is discharged through the squeegee assembly 6 on the other side. In this way, the guide mechanism 4 is arranged as two and further comprises the switching assembly 8, so that the number of times that the support 1 moves back and forth along the first horizontal direction in the carriage 2 is reduced, and the cleaning efficiency is improved.

[0044] In particular, please continue to refer to Figure 7 and Figure 8The switching mechanism 83 is a spring switching mechanism, which comprises a connecting seat 831, the first connecting end of the connecting seat 831 is hingedly connected with the support 1, the second connecting end is provided with a second connecting hole 832, the middle part of the connecting rod 81 is provided with a protrusion 811, part of the protrusion 811 is arranged in the second connecting hole 832 and can slide in the second connecting hole 832, the outer periphery of the connecting seat 831 is sleeved with a spring 833, and the second connecting end is provided with a snap ring 834 which can slide along the connecting seat 831, the first end of the spring 833 is fixedly connected with the connecting seat 831, and the second end is in abutment with the snap ring 834, so that when the two scraper assemblies 6 are switched in position, the connecting rod 81 can be switched from being inclined to the left side downward to being inclined to the right side downward, the middle part of the connecting rod 81 is provided with the protrusion 811, the protrusion 811 is in sliding connection with the second connecting hole 832 in the connecting seat 831, so that the protrusion 811 can press against the snap ring 834 and drive the spring 833 to rotate along with the connecting rod 81, and the spring on the connecting seat 831 can change from the compressed state to the elongated state and then from the elongated state to the compressed state, so as to complete the switching of the positions of the two scraper assemblies 6, so that the two scraper assemblies 6 can not be clamped in the intermediate transition position when switching positions, and the residual coal in the carriage 2 can be swept and discharged out of the carriage 2 by switching the positions of the two scraper assemblies 6.

[0045] It can be understood that the above-mentioned spring switching mechanism of the switching mechanism 83 is illustrative, and in other embodiments, other switching mechanisms can also be used, for example, the switching mechanism 83 can also be a cam switching mechanism, which will not be described here.

[0046] The second aspect of the present disclosure provides a spiral unloading machine, which comprises a cart walking mechanism 9, a trolley walking mechanism 91, a lifting mechanism, a rotating mechanism, a discharging mechanism 92 and the above-mentioned cleaning device, the trolley walking mechanism 91 is arranged on the cart walking mechanism 9, the trolley walking mechanism 91 is provided with two mounting arms 93, each mounting arm 93 is provided with a lifting mechanism, and the lifting mechanism is provided with a rotating mechanism, one of the rotating mechanisms is provided with a discharging mechanism 92, and the other rotating mechanism is provided with a cleaning device. For example, please refer to Figure 1 and Figure 2 may comprise a frame 10, the frame is provided with a track for the cart walking mechanism 9, the cart walking mechanism 9 is driven by a motor reducer to rotate the walking wheel, so as to achieve the purpose of “longitudinal” walking on the track, the longitudinal direction here can refer to Figure 1The length direction of the middle car 2; The trolley traveling mechanism 91 travels on the track of the gantry traveling mechanism 9, and the lifting mechanism and the rotating mechanism are fixed on the trolley traveling mechanism 91 and are driven together to move "laterally", where "laterally" refers to the width direction of the car 2. The lifting mechanism drives the rotating mechanism to lift. During work, the spiral unloading machine is located above the car 2 as a whole through the gantry traveling mechanism 9 and the trolley traveling mechanism 91. One of the two mounting arms 93 mounts the cleaning device, and the other mounting arm 93 mounts the unloading mechanism 92. First, the unloading mechanism 92 is rotated by the rotating mechanism from the inclined direction to the vertical direction as a whole, and the unloading mechanism 92 is sent into the car 2 by the lifting mechanism to unload the coal in the car 2. At the same time, the cleaning device needs to be rotated by the rotating mechanism to be inclined and separated from the car 2 as a whole by the lifting mechanism. After that, when the unloading mechanism 92 finishes unloading the coal in the car 2, the unloading mechanism 92 is lifted as a whole by the lifting mechanism and then rotated by the rotating mechanism from the vertical direction to the inclined direction and separated from the car 2. At the same time, the cleaning device is rotated to the vertical direction by the rotating mechanism and placed in the car 2 as a whole by the lifting mechanism. The cleaning device is driven by the trolley traveling mechanism 91 to reciprocate in the car 2, so as to clean the residual coal in the car 2 by the cleaning device and discharge the car by the scraper assembly 6 in the cleaning device, thereby reducing the residual coal in the car 2.

[0047] The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.

[0048] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combination manners are not described again in the present disclosure.

[0049] In addition, various different embodiments of the present disclosure can also be combined in any manner as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A cleaning device for cleaning residual coal from a car, characterized in that, The utility model relates to a coal cleaning device for coal car, which comprises: a support arranged to be movable in a first horizontal direction and a vertical direction within the coal car; a cleaning mechanism arranged on the support and movable with the support to clean residual coal on the bottom of the coal car; and a flow guide mechanism arranged on one side of the cleaning mechanism in the first horizontal direction, comprising a connecting assembly movably connected to the support and a scraper assembly connected to the bottom end of the connecting assembly, the scraper assembly having a first position and a second position. In the first position, the scraper assembly abuts against the bottom wall of the coal car to guide the residual coal on the bottom of the coal car. In the second position, the scraper assembly is away from the bottom wall of the coal car to enable the cleaning mechanism to clean the residual coal on the bottom of the coal car. When the support moves the flow guide mechanism in the first horizontal direction to abut against the inner side wall of the coal car, the scraper assembly is switched from the first position to the second position. The flow guide mechanism further comprises a switching assembly arranged on the support and connected to the two connecting assemblies on both sides of the cleaning mechanism, the switching assembly being configured to, when one of the two scraper assemblies on both sides of the cleaning mechanism abuts against the inner side wall of the coal car, have the scraper assembly on one side of the coal car in the first position and the scraper assembly on the other side of the coal car in the second position. The switching assembly comprises a connecting rod, a positioning column and a switching mechanism, both ends of the connecting rod being hingedly connected to the connecting assemblies on both sides of the cleaning mechanism, the middle part of the connecting rod being provided with a first connecting hole, the positioning column being arranged in the first connecting hole and fixedly connected to the support, and the switching mechanism being arranged below the positioning column and hingedly connected to the middle part of the connecting rod. The number of the connecting assemblies is multiple, and the connecting assemblies are arranged at intervals in a second horizontal direction perpendicular to the first horizontal direction.

2. The cleaning device of claim 1, wherein The connecting assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod and the second connecting rod being arranged at intervals in the vertical direction, the first ends of the first connecting rod and the second connecting rod being hingedly connected to the support, the second ends of the first connecting rod and the second connecting rod being hingedly connected to the third connecting rod, and the bottom end of the third connecting rod being fixedly connected to the scraper assembly.

3. The cleaning device of claim 2, wherein The number of the flow guide mechanisms is two, and the two flow guide mechanisms are arranged on both sides of the cleaning mechanism respectively.

4. The cleaning device of claim 1, wherein The switching mechanism is a spring switching mechanism, the spring switching mechanism comprising a connecting seat, the first connecting end of the connecting seat being hingedly connected to the support, the second connecting end of the connecting seat being provided with a second connecting hole, the middle part of the connecting rod being provided with protrusions, part of the protrusions being arranged in the second connecting hole and being slidable in the second connecting hole, the connecting seat being provided with a spring outside the periphery of the connecting seat and a clasp slidable along the connecting seat at the second connecting end, the first end of the spring being fixedly connected to the connecting seat, and the second end of the spring abutting against the clasp.

5. The cleaning device of claim 1, wherein ​ 6. The cleaning device of claim 1, wherein The scraper assembly comprises a connecting plate and a scraper, one end of the connecting plate is fixedly connected with the connecting assembly, the other end is fixedly connected with the scraper, and the scraper extends along a second horizontal direction.

7. The cleaning device of claim 1, wherein The cleaning mechanism comprises a cleaning support, a driving assembly, a transmission assembly and a cleaning disc, the cleaning support is fixed on the support, the upper part of the cleaning support is provided with the driving assembly, and the lower part is provided with the cleaning disc, and the driving assembly is in transmission connection with the cleaning disc through the transmission assembly.

8. The cleaning device of claim 1, wherein The cleaning device further comprises a stopper, which is located between the connecting assembly and the support and extends towards one side of the connecting assembly.

9. A spiral unloader characterized by The crane comprises a main walking mechanism, a trolley walking mechanism, a lifting mechanism, a rotating mechanism, a discharging mechanism and the cleaning device of any one of claims 1-8, the trolley walking mechanism is arranged on the main walking mechanism, two mounting arms are arranged on the trolley walking mechanism, the lifting mechanism is arranged on each mounting arm, the rotating mechanism is arranged on the lifting mechanism, the discharging mechanism is arranged on one rotating mechanism, and the cleaning device is arranged on the other rotating mechanism.

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