Unloading device for bulk material in a train wagon under a power traction catenary
By installing a rotatable horizontal cantilever beam and a foldable vertical connecting arm unloading device on the train car, the problems of high equipment cost and low flexibility in unloading under the electric traction contact network are solved, achieving efficient and safe unloading results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI ZHONGTU HEAVY IND MACHINERY
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-12
Smart Images
Figure CN224349685U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of material unloading equipment, specifically relating to a vacuum extraction and unloading device for train carriages used for bulk materials such as granular and powdery materials. Background Technology
[0002] Bulk materials such as coal and iron ore in powder or granular form are typically transported by train. Upon arrival at their destination, the traditional unloading method involves using a tipper to tilt the carriages and discharge the material. This method requires the carriages to travel to a specific location before the tipper tilts them, necessitating appropriate station facilities, such as the unloading workshop disclosed in utility model patent CN215478497U. However, this tipping method is costly and inflexible due to the need for planned site construction of workshops and equipment. Later, a suction-type pneumatic conveyor for bulk materials, as disclosed in patent CN87204734U, emerged. This suction-type pneumatic conveyor includes a centrifugal blower, a negative pressure suction nozzle, a separator, a discharger, a dust collector, a conveying hose, a discharge nozzle, and a dust collector. The negative pressure airflow generated by the centrifugal blower draws material in through the negative pressure suction nozzle and outputs it through the discharge nozzle. However, electric traction contact networks are typically installed above train carriages in railway stations. These contact networks are generally 6-6.5 meters high, and the area within 0.5 meters below them is a restricted zone (i.e., the safe height is 0.5 meters below the contact network). Therefore, the safe space above train tank cars and top-opening carriages is only 1.5-2 meters, limiting the operating space of unloading equipment. Existing unloading machines do not consider how to avoid interference with the electric traction contact network during operation, making them unsuitable for unloading operations in such scenarios and failing to meet the unloading requirements of bulk materials under electric traction contact network conditions. Manual operation, requiring workers to enter the carriages and tank cars, presents problems such as high labor costs, high labor intensity, low efficiency, environmental pollution, and safety hazards. Furthermore, minimizing train dwell time and ensuring safe production are crucial performance indicators for railway station management. Therefore, there is an urgent need for an efficient and safe unloading device for bulk materials in carriages and tank cars located below the electric traction contact network. Utility Model Content
[0003] The purpose of this invention is to provide a flexible unloading device for bulk materials in train carriages that can efficiently unload materials below the electric traction contact network.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A bulk material unloading device for train carriages under electric traction overhead contact lines includes: a traveling trolley; a frame lifting column mounted on the traveling trolley; a horizontal cantilever beam mounted on the top of the frame lifting column, with a horizontal conveying pipe mounted on the horizontal cantilever beam; and a vertical connecting arm movably connected to the end of the horizontal cantilever beam, with a vertical conveying pipe mounted on the vertical connecting arm and communicating with the horizontal conveying pipe; the vertical connecting arm is rotatable relative to the horizontal cantilever beam about a first axis and a second axis, the first axis extending horizontally and parallel to the horizontal cantilever beam, and the second axis extending horizontally and perpendicular to the horizontal cantilever beam. When the connecting arm rotates around the second axis, it can rotate to a folded state folded below the horizontal cantilever beam or an unfolded state with its far end away from the horizontal cantilever beam. When the vertical connecting arm rotates around the first axis, it can rotate to a position where its far end is located on the left and right sides of the horizontal cantilever beam. A suction head is provided at the end of the vertical connecting arm. The suction head and the vertical connecting arm form a rigid suction component. The suction head is connected to the vertical conveying pipe. The suction head includes a negative pressure suction nozzle, which is connected to the vertical conveying pipe. A rotary platform controls the horizontal rotation of the horizontal cantilever beam around the axis of the lifting column of the frame.
[0006] Furthermore, the vertical connecting arm is connected to the horizontal telescopic cantilever beam via a first swing cylinder and a second swing cylinder. The first swing cylinder is used to control the rotation of the vertical connecting arm around the second axis, and the second swing cylinder is used to control the rotation of the vertical connecting arm around the first axis. The first axis and the second axis are orthogonal.
[0007] Furthermore, the rotary platform is located on the top of the lifting column of the frame, and the horizontal cantilever beam is mounted on the rotary platform via a hinge seat. The hinge seat is provided with a horizontal hinge shaft, and the horizontal cantilever beam can rotate around the hinge shaft in a vertical plane.
[0008] Furthermore, when the vertical connecting arm rotates to a horizontal position, the overall maximum height h of the horizontal cantilever beam, the vertical connecting arm, and the suction head is less than 1.5 meters.
[0009] Furthermore, a hydraulic pump station is provided at the other end of the horizontal cantilever beam, and the hydraulic pump station and the vertical connecting arm are respectively located at both ends of the horizontal cantilever beam.
[0010] Furthermore, the horizontal cantilever beam and the horizontal conveying pipe are arranged in parallel and connected by a connector, and the horizontal cantilever beam and the horizontal conveying pipe are telescopic structures with adjustable length.
[0011] Furthermore, the vertical connecting arm and the vertical conveying pipe are arranged in parallel and connected by a connector. The vertical connecting arm and the vertical conveying pipe are telescopic structures with adjustable length.
[0012] Furthermore, it also includes an operator's cab, which is slidably mounted on the horizontal cantilever beam via a carriage.
[0013] Furthermore, the operating room has a folding structure, including a lower compartment and an upper compartment, which are connected by hinges. The upper compartment can be flipped down to be side by side with the lower compartment in the horizontal direction.
[0014] Furthermore, a camera is provided at the end where the horizontal cantilever beam connects to the vertical connecting arm; and / or, a camera is provided at the end where the vertical connecting arm connects to the horizontal cantilever beam.
[0015] Furthermore, the traveling trolley is a wheeled traveling trolley or a tracked traveling trolley.
[0016] Furthermore, the vertical connecting arm is a telescopic connecting arm. The vertical connecting arm is connected to the horizontal cantilever beam through a hinge seat and can rotate around the hinge axis on the hinge seat. The other end of the vertical connecting arm is connected to a fixed plate. The material suction head is set on the fixed plate. A winch is set on the horizontal cantilever beam. The rope of the winch is connected to the fixed plate.
[0017] Alternatively, the vertical connecting arm is a parallel link structure, with one end of the parallel link structure connected to the horizontal cantilever beam and the other end connected to a fixed plate. The material suction head is mounted on the fixed plate, and a winch is mounted on the horizontal cantilever beam. The winch's rope is connected to the fixed plate.
[0018] As can be seen from the above technical solution, this utility model uses a traveling trolley as the base of the unloading device, and sets up a horizontal cantilever beam that can rotate on a horizontal plane. The vertical connecting arm with the suction head rotates horizontally to the top of the carriage, avoiding interference with the electric traction contact network above the carriage. The suction head is mounted on the vertical connecting arm, which is movably connected to the horizontal cantilever beam. The vertical connecting arm can rotate relative to the horizontal cantilever beam around a first axis and a second axis. This not only facilitates the horizontal cantilever beam driving the vertical connecting arm into the working space above the carriage, avoiding interference with the electric traction contact network, but also allows adjustment of the position of the suction head according to the material stacking situation inside the carriage, enabling material extraction from all locations within the carriage for thorough unloading. Furthermore, the traveling trolley is easy to move, eliminating the need to move the carriage to a specific area for unloading, making it more flexible in use. This utility model can be used not only for vacuum extraction and unloading operations under the electric traction contact network at electric traction railway stations and freight yards, but also in ordinary railway stations and freight yards. Attached Figure Description
[0019] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0021] Figure 2 This is a structural schematic diagram from another angle of an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the vertical telescopic connecting arm, the vertical telescopic suction tube, and the horizontal telescopic cantilever beam in a mutually perpendicular state according to an embodiment of this utility model.
[0023] Figure 4 This is a schematic diagram of the vertical telescopic connecting arm and the vertical telescopic suction tube swinging to an inclined state relative to the horizontal telescopic cantilever beam in an embodiment of this utility model.
[0024] Figure 5 This is a schematic diagram of the vertical telescopic connecting arm and the vertical telescopic suction tube swinging to another tilt state relative to the horizontal telescopic cantilever beam in an embodiment of this utility model.
[0025] Figure 6 This is a schematic diagram of the operating room of this utility model when it is not folded.
[0026] Figure 7A schematic diagram of the operating room of this utility model at another angle when it is not folded;
[0027] Figure 8 This is a schematic diagram of the operating room when folded according to an embodiment of the present invention;
[0028] Figure 9 This is a schematic diagram showing the operating room of this utility model folded at another angle.
[0029] Figure 10 This is a schematic diagram of another embodiment of the present utility model;
[0030] Figure 11 This is a schematic diagram of the structure of the suction component when folded according to another embodiment of the present invention;
[0031] Figure 12 This is a schematic diagram of the structure of another embodiment of the present utility model;
[0032] Figure 13 This is a schematic diagram of the structure of the suction component when it is folded according to another embodiment of the present invention.
[0033] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Detailed Implementation
[0034] The present invention will now be described in detail with reference to the accompanying drawings. In the detailed description of the embodiments of the present invention, for ease of explanation, the drawings illustrating the device structure will be partially enlarged without adhering to the general scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. It should be noted that the drawings are in a simplified form and use non-precise scales, solely for the purpose of conveniently and clearly illustrating the embodiments of the present invention. Additionally, in the description of this application, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Terms such as "positive," "negative," "bottom," "upper," and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0035] like Figure 1 and Figure 2 As shown, the bulk material unloading device in this embodiment includes a traveling trolley 1, a frame lifting column 2, a rotating platform 3, a horizontal cantilever beam 4, a horizontal conveying pipe 5, a vertical connecting arm 6, a vertical conveying pipe 7, a suction working head 8, a hydraulic pump station 9, and an operating room 10.
[0036] The bottom of the traveling trolley 1 is equipped with a traveling device, which can be a traveling wheel, a traveling track, etc. This traveling device allows the unloading device to move freely, without being limited by specific tracks or other moving ranges, and facilitates relocation during unloading. The frame lifting column 2 is mounted on the traveling trolley 1. In this embodiment, the frame lifting column 2 is a telescopic sliding column that can extend and retract vertically. The rotary platform 3 is located on top of the frame lifting column 2, and the horizontal cantilever beam 4 and the horizontal conveying pipe 5 are mounted on the rotary platform 3. The rotary platform 3 is used to rotate the horizontal cantilever beam 4 and the horizontal conveying pipe 5 in the horizontal direction. When the rotary platform 3 rotates, it drives the horizontal cantilever beam 4 and the horizontal conveying pipe 5 mounted on it to rotate horizontally left or right around the axis of the frame lifting column 2. The rotation of the rotary platform 3 can be achieved using conventional drive units such as hydraulic cylinders and motors, and the extension and retraction of the frame lifting column 2 can also be achieved using conventional drive units such as hydraulic cylinders and motors.
[0037] The horizontal cantilever beam 4 and the horizontal conveying pipe 5 are arranged in parallel and connected by connectors. In this embodiment, both the horizontal cantilever beam 4 and the horizontal conveying pipe 5 are telescopic structures with adjustable lengths. The horizontal cantilever beam 4 can control the extension and retraction of the horizontal conveying pipe 5. When the horizontal cantilever beam 4 extends, it can drive the horizontal conveying pipe 5 to extend forward together. When the horizontal cantilever beam 4 retracts, it can drive the horizontal conveying pipe 5 to retract, so as to facilitate the transfer and transportation of the unloading device. The rotary platform 3 is used to realize the horizontal rotation of the horizontal cantilever beam 4 and the horizontal conveying pipe 5. In this embodiment, the rotary platform 3 is set at the top of the frame lifting column 2, directly driving the horizontal cantilever beam 4 and the horizontal conveying pipe 5 to rotate. In other embodiments, the rotary platform can also be set at the bottom of the frame lifting column, and the horizontal cantilever beam and the horizontal conveying pipe can be set at the top of the frame lifting column. The rotary platform drives the frame lifting column to rotate around its own axis, thereby indirectly driving the horizontal cantilever beam and the horizontal conveying pipe set on the frame lifting column to rotate.
[0038] In addition to controlling the extension and retraction of the horizontal conveying pipe 5, the horizontal cantilever beam 4 also serves as a support arm. The vertical connecting arm 6 is located at the free end of the horizontal cantilever beam 4, and the position of the vertical connecting arm 6 can be adjusted by extending and retracting the horizontal cantilever beam 4.
[0039] Optionally, in this embodiment, the horizontal cantilever beam 4 also serves as a mounting frame for the operating chamber 10, which is slidably mounted on the horizontal cantilever beam 4 via a slide 11. In this embodiment, the horizontal cantilever beam 4 is a sliding telescopic cantilever, and the slide 11 is mounted on the outermost sleeve of the horizontal cantilever beam 4. The slide 11 can move along the horizontal cantilever beam 4, thereby adjusting the position of the operating chamber 10 mounted on the slide 11. The horizontal sliding of the slide 11 is controlled by the operating chamber translation drive unit 12. In this embodiment, the operating chamber translation drive unit 12 is a hydraulic cylinder, which is fixed to the outermost sleeve of the horizontal cantilever beam 4. The piston rod is connected to the slide 11. When the hydraulic cylinder operates, the movement of the slide 11 is controlled by the extension and retraction of the piston rod, thereby controlling the movement of the operating chamber 10.
[0040] Optionally, in this embodiment, the horizontal cantilever beam 4 is mounted on the rotary platform 3 via a hinge seat 13. The hinge seat 13 has a hinge shaft (unlabeled), with its axis horizontal. The horizontal cantilever beam 4 can rotate around the hinge shaft, meaning it can rotate in a vertical plane via the hinge seat 13, thus achieving folding. In operation, the horizontal cantilever beam 4 rotates to a horizontal position. During transfer, it can rotate to a relatively vertical or inclined position, overcoming the problem of large space occupation in the horizontal position. The folding of the horizontal cantilever beam 4 is controlled by a folding hydraulic cylinder 14. The folding hydraulic cylinder 15 is mounted on the rotary platform 3, with its piston rod connected to the horizontal telescopic cantilever beam 4. When the folding hydraulic cylinder 15 operates, it drives the horizontal telescopic cantilever beam 4 to rotate around the axis of the hinge shaft on the hinge seat 13.
[0041] The vertical connecting arm 6 and the hydraulic pump station 9 are respectively located at the front and rear ends of the horizontal cantilever beam 4. The hydraulic pump station 9 is used to provide hydraulic power to ensure the normal operation of each hydraulic drive unit. In this embodiment, the hydraulic pump station 9 and the vertical connecting arm 6 are respectively located at both ends of the horizontal cantilever beam 4. The hydraulic pump station 9 can be used as a counterweight, thereby eliminating the need for a counterweight component, reducing costs, and making the structure simpler and more compact.
[0042] The vertical connecting arm 6 and the horizontal cantilever beam 4 are movably connected, allowing the vertical connecting arm 6 to rotate relative to the horizontal cantilever beam 4 around a first axis a and a second axis b. The first axis a is parallel to the horizontal cantilever beam 4, and the second axis b is perpendicular to the horizontal cantilever beam 4. The first axis a and the second axis b are orthogonal, and both extend horizontally. In this embodiment, the vertical connecting arm 6 is connected to the horizontal telescopic cantilever beam 4 via a first swing cylinder 15 and a second swing cylinder 16. The axis of the swing output shaft of the first swing cylinder 15 is aligned with the second axis b, and the axis of the swing shaft of the second swing cylinder 16 is aligned with the first axis a. The first swing cylinder 15 is used to achieve rotation around the second axis b, and the second swing cylinder 16 is used to achieve rotation around the first axis a. Through the two swing cylinders with orthogonally arranged swing axes, the vertical connecting arm 6 can swing relative to the horizontal cantilever beam 4 around the first axis a and the second axis b, allowing the vertical connecting arm 6 to swing at different angles in different directions, thus enabling the suction head to reach the bottom and corners of the carriage. In addition to using two swing cylinders to control the swing of the vertical connecting arm, the vertical connecting arm can also be connected to the horizontal cantilever beam through other hinged structures such as universal joints or hinge seats, and the swing of the vertical connecting arm can be controlled by drive components such as hydraulic cylinders / electric cylinders.
[0043] When the vertical connecting arm 6 rotates about the second axis b, it can fold below the horizontal cantilever beam 4 (e.g., Figure 2 , Figure 6 This folded state allows the horizontal cantilever beam 4 and the vertical connecting arm 6 to easily extend into the space below the electric traction contact network. It also allows for adjustment of the height of the horizontal cantilever beam 4 and the vertical connecting arm 6 in conjunction with the lifting of the frame lifting column 2, preventing interference with the electric traction contact network. When the vertical connecting arm 6 is above the carriage, it can be controlled to rotate and unfold around the second axis b for unloading operations. The vertical connecting arm 6 is in the unfolded state when it rotates from the folded state around the second axis b until its far end (the end of the vertical connecting arm where the suction head is located) leaves the horizontal cantilever beam 4. The rotation angle of the vertical connecting arm 6 around the second axis b can range from 0 to 180°; at 0°, it is in the folded state below the horizontal cantilever beam 4.
[0044] In a preferred embodiment, the vertical connecting arm 6 can also rotate around the first axis a. When the vertical connecting arm 6 rotates around the first axis a, its position in the length direction of the carriage can be adjusted. When the vertical connecting arm 6 rotates around the second axis b, its position in the width direction of the carriage can be adjusted. Through these two degrees of freedom adjustment, interference with the electric traction contact network can be better avoided, and the vertical connecting arm 6 can swing in the front-back, left-right, and other directions, extending to various positions inside the carriage to clean the material from the corners. When the vertical connecting arm 5 rotates around the first axis a, it can rotate until its far end is located on the left and right sides of the horizontal cantilever beam 4. When the vertical connecting arm 5 rotates around the first axis a, it can at least rotate to a horizontal position. Figure 1 .
[0045] In this embodiment, the vertical conveying pipe 7 and the vertical connecting arm 6 are also telescopic structures with adjustable lengths. The vertical conveying pipe 7 and the vertical connecting arm 6 are arranged in parallel and connected by a connector. The vertical connecting arm 6 can control the extension and retraction of the vertical conveying pipe 7. When the vertical connecting arm 6 extends, it drives the vertical conveying pipe 7 to extend forward; when the vertical connecting arm 6 retracts, it drives the vertical conveying pipe 7 to retract. The vertical conveying pipe 7 is connected to the horizontal conveying pipe 5. The vertical conveying pipe 7 and the horizontal conveying pipe 5 can be connected by a folded bend or a flexible hose. Like the horizontal cantilever beam 4, the vertical connecting arm 6 in this embodiment is a sliding-sleeve telescopic arm structure.
[0046] The suction head 8 is located at the free end of the vertical connecting arm 6 (the end opposite to the connecting end of the horizontal cantilever beam). The suction head 8 is connected to one end of the vertical conveying pipe 7. Material drawn by the suction head 8 through vacuum suction is then conveyed out of the carriage via the vertical conveying pipe 7 and the horizontal conveying pipe 5. In this embodiment, the suction head 8 is located at the end of the vertical connecting arm 6, forming a rigid suction component. The connection between the suction component and the horizontal cantilever beam is not a soft or flexible connection formed by a hose, ensuring strength. The rigid suction component (vertical connecting arm) and the horizontal cantilever beam are connected by a swing cylinder or by a hinged structure + hydraulic cylinder / electric cylinder / winch / motor, and the swing is controlled. This allows the suction component (vertical connecting arm) to swing in the front-back and left-right directions, achieving omnidirectional material extraction. When the vertical connecting arm 6 is folded below the horizontal cantilever beam 4, the overall maximum height h of the horizontal cantilever beam 4, the vertical connecting arm 6, and the suction head 8 in the folded state is less than 1.5 meters. This ensures that when the horizontal cantilever beam 4, carrying the vertical connecting arm 6 and the suction head 8, extends above the carriage in the folded state, it will not interfere with the electric traction contact network located above the carriage. When the vertical connecting arm 6 rotates around the first axis a to a horizontal position, the overall maximum height h of the horizontal cantilever beam 4, the vertical connecting arm 6, and the suction head 8 is less than 1.5 meters. Figure 1 ).
[0047] Bulk materials may become increasingly compacted after loading and during transportation. Negative pressure suction alone may encounter large clumps that cannot be extracted, resulting in incomplete unloading. To address this issue, the suction head 8 in this embodiment includes a negative pressure suction nozzle 8a and an arch-breaking structure 8b surrounding the nozzle. The negative pressure suction nozzle 8a is a tubular structure that can perform negative pressure vacuum suction under the action of an external negative pressure source (not shown). The arch-breaking structure 8b is arranged on the outer wall of the negative pressure suction nozzle 8a. The nozzle 8a can rotate around its own axis. During rotation, the arch-breaking structure 8b on its outer wall can break up the material, loosening any accumulated clumps to facilitate suction by the nozzle 8a and prevent the clumps from being unable to be extracted, thus affecting the unloading effect. When the unloading device is used for unloading bulk materials such as grain, the arch-breaking structure is not required, and unloading can be performed directly through the negative pressure suction nozzle.
[0048] This utility model also provides an operating method for the aforementioned unloading device for bulk materials in train carriages. The operating method of the unloading device for bulk materials in train carriages according to this embodiment is described below with reference to the accompanying drawings. The operating method includes the following process:
[0049] like Figure 2 As shown, when unloading materials from the train car, the traveling trolley 1 moves to the vicinity of the car; then the frame lifting column 2 rises to a suitable height, at which point the horizontal cantilever beam 4 and the horizontal conveying pipe 5 will not be higher than the electric traction contact network 100; at this time, the vertical connecting arm 6 is in a folded state, folded together with the suction head 8 below the horizontal cantilever beam 4. The horizontal cantilever beam 4, the vertical connecting arm 6, and the suction head 8 extend into the space above the electric traction contact network and the train car. The rotating platform 3 can drive the horizontal cantilever beam 4 and the horizontal conveying pipe 5 to rotate horizontally to the left or right to adjust their positions. Since the horizontal cantilever beam 4 and the horizontal conveying pipe 5 are not higher than the electric traction contact network 100, their horizontal rotation will not interfere with the electric traction contact network 100. The vertical connecting arm 6 can rotate around the second axis b to a horizontal state folded below the horizontal cantilever beam 4 (e.g., Figure 2 , Figure 6 (State) Entering the space above the electric traction contact network and the train carriages, or rotating around the first axis a to such a position. Figure 1 The state shown indicates that the train enters the space above the electric traction overhead contact line and the train carriages.
[0050] After the horizontal cantilever beam 4, vertical connecting arm 6, and suction head 8 are rotated above the carriage, the vertical connecting arm 6 rotates around the second axis b, unfolding the vertical connecting arm 6. It can also be coordinated with the vertical connecting arm 6 rotating around the first axis a, allowing the vertical connecting arm 6 and vertical conveying pipe 7 to be adjusted to suitable angles and lengths. The suction head 8 then performs vacuum suction and conveying of the material within the carriage 200. The adjustment range of the vertical connecting arm 6 and vertical conveying pipe 7 can be adjusted according to the position of the material, such as adjusting to... Figure 1 or Figure 3 or Figure 4 or Figure 5 The state shown can be flexibly adjusted according to the material situation inside the carriage 200, so as to facilitate the removal of all materials from the carriage.
[0051] After unloading is completed, the vertical connecting arm 6 and the vertical conveying pipe 7 are adjusted to be folded horizontally under the horizontal cantilever beam 4. Then the rotary platform 3 rotates, and the vertical connecting arm 6 and the vertical conveying pipe 7 are rotated out of the carriage 200 through the horizontal cantilever beam 4. The traveling trolley 1 carries the unloading device to the next carriage for unloading.
[0052] To reduce transport volume and facilitate transportation, the operating room 10 is preferably configured with a folding structure. For example... Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the operating room 10 includes a lower compartment 10-1 and an upper compartment 10-2. The lower compartment 10-1 is mounted on the slide 11. The upper compartment 10-2 is movably connected to the lower compartment 10-1 via a hinge. The upper compartment 10-2 can be flipped down to be placed side by side with the lower compartment 10-1. When the upper compartment 10-2 is flipped up, it can form a complete operating room 10 with the lower compartment 10-1. When it is flipped down, the two compartments are placed side by side in the horizontal direction, which can reduce the overall height of the operating room 10.
[0053] In the foregoing embodiments, to improve the flexibility of adjusting the working range of the suction head 8, a horizontal telescopic cantilever beam and a vertical telescopic connecting arm, as well as a horizontal telescopic conveying pipe and a vertical telescopic conveying pipe, are used. However, in other embodiments, the horizontal cantilever beam and the vertical connecting arm can also be of fixed length, i.e., non-telescopic. This structure is simpler and cheaper, but such a non-telescopic structure reduces the flexibility of adjusting the position of the suction head and limits the working range. Therefore, it is preferable to use a telescopic horizontal telescopic cantilever beam and a vertical telescopic connecting arm. The horizontal / vertical conveying pipe can be a telescopic tube or a flexible hose, which can also achieve the effect of adjusting its length with the extension and retraction of the horizontal and vertical telescopic cantilever beams.
[0054] like Figure 5As shown, to facilitate observation of whether the material has been completely extracted, a camera 17 can be installed at the end where the horizontal cantilever beam 4 connects to the vertical connecting arm 6, and / or at the end where the vertical connecting arm 6 connects to the horizontal cantilever beam 4. In this embodiment, cameras 17 are installed at both the ends where the horizontal cantilever beam 4 connects to the vertical connecting arm 6 and the ends where the vertical connecting arm 6 connects to the horizontal cantilever beam 4. The position of the suction head 8 can be observed through the camera 17, thereby facilitating the adjustment of the position of the suction head 8 according to the material situation in the carriage, extracting the material, and conveying it outward.
[0055] like Figure 10 and Figure 11 As shown, as a variation, this embodiment differs from the previous embodiments in that the vertical connecting arm 6 is connected to the horizontal cantilever beam 4 via a hinge seat 13, and the vertical connecting arm 6 can rotate around the hinge axis on the hinge seat 13. The vertical connecting arm 6 is a telescopic connecting arm, meaning its length is adjustable.
[0056] The suction head 8 is mounted on the fixed plate 18, which is connected to the end of the vertical connecting arm 6. When the vertical connecting arm 6 extends or retracts or rotates around the hinge axis on the hinge seat 13, it can drive the fixed plate 18, i.e., the suction head 8 mounted on the fixed plate 18, to move, thereby continuing to extract materials from different positions in the carriage.
[0057] In this embodiment, a winch 19 is used to control the movement of the material suction head 8. The winch 19 is fixed on the horizontal cantilever beam 3. The free end of the wire rope 20 (rope) of the winch 19 is connected to the fixed plate 18. By adjusting the change in the length of the wire rope 20, the vertical connecting arm 6 is rotated around the hinge axis on the hinge seat 13, thereby adjusting the angle of the material suction head 8 and realizing the extension or folding of the vertical connecting arm 6 (material suction component).
[0058] Furthermore, the winch 19 can be mounted on a telescopic sleeve 21 fixed to the horizontal cantilever beam 4. The telescopic sleeve 21 allows the winch 19 to change position, thereby meeting the needs of adjusting the angle of the suction head 8 and enabling material extraction from all directions and at various angles. In this embodiment, a camera 17 is provided at the end of the horizontal cantilever beam 4.
[0059] Figure 12 and Figure 13 In another modified embodiment, the difference between this embodiment and the previous embodiment is that the vertical connecting arm 6 is a parallel linkage structure, with both ends of the parallel linkage connected to the fixed plate 18 and the end of the horizontal cantilever beam 4, respectively. In this embodiment, the parallel linkage is a parallel four-bar linkage structure. The end of the wire rope 20 of the winch 19 is connected to the fixed plate 18. By releasing or retracting the wire rope 20, the winch 19 can adjust the position of the suction head 8 to extract materials from different locations within the carriage.
[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A device for unloading bulk materials from train carriages under an electric traction overhead contact line, characterized in that, include: Mobile trolley; The frame lifting column is installed on the traveling trolley; A horizontal cantilever beam is installed at the top of the lifting column of the frame, and a horizontal material conveying pipe is installed on the horizontal cantilever beam; A vertical connecting arm is movably connected to the end of the horizontal cantilever beam. A vertical conveying pipe is provided on the vertical connecting arm, and the vertical conveying pipe is connected to the horizontal conveying pipe. The vertical connecting arm can rotate relative to the horizontal cantilever beam about a first axis and a second axis. The first axis extends horizontally and is parallel to the horizontal cantilever beam, and the second axis extends horizontally and is perpendicular to the horizontal cantilever beam. When the vertical connecting arm rotates about the second axis, it can rotate to a folded state folded under the horizontal cantilever beam or an unfolded state with its far end away from the horizontal cantilever beam. When the vertical connecting arm rotates about the first axis, it can rotate to the point where its far end is located on the left and right sides of the horizontal cantilever beam. A suction head is disposed at the end of the vertical connecting arm. The suction head and the vertical connecting arm form a rigid suction component. The suction head is connected to the vertical conveying pipe. The suction head includes a negative pressure suction nozzle, which is connected to the vertical conveying pipe. A rotary platform that controls the horizontal rotation of the horizontal cantilever beam around the axis of the lifting column of the frame.
2. The unloading device for bulk materials from train carriages under electric traction contact networks as described in claim 1, characterized in that: The vertical connecting arm is connected to the horizontal cantilever beam via a first swing cylinder and a second swing cylinder. The first swing cylinder is used to control the rotation of the vertical connecting arm around the second axis, and the second swing cylinder is used to control the rotation of the vertical connecting arm around the first axis. The first axis and the second axis are orthogonal.
3. The unloading device for bulk materials from train carriages under the electric traction contact network as described in claim 1, characterized in that: The rotary platform is located on the top of the lifting column of the frame. The horizontal cantilever beam is mounted on the rotary platform via a hinge seat. The hinge seat is provided with a horizontal hinge shaft, and the horizontal cantilever beam can rotate around the hinge shaft in a vertical plane.
4. The unloading device for bulk materials from train carriages under electric traction contact networks as described in claim 1, characterized in that: When the vertical connecting arm rotates to a horizontal position, the overall maximum height h of the horizontal cantilever beam, the vertical connecting arm, and the suction head is less than 1.5 meters.
5. The unloading device for bulk materials from train carriages under electric traction contact networks as described in claim 1, characterized in that: A hydraulic pump station is provided at the other end of the horizontal cantilever beam, and the hydraulic pump station and the vertical connecting arm are located at the two ends of the horizontal cantilever beam, respectively.
6. The unloading device for bulk materials from train carriages under electric traction contact networks as described in claim 1, characterized in that: The horizontal cantilever beam and the horizontal conveying pipe are arranged in parallel and connected by a connector. The horizontal cantilever beam and the horizontal conveying pipe are telescopic structures with adjustable length. And / or, the vertical connecting arm and the vertical conveying pipe are arranged in parallel and connected by a connector. The vertical connecting arm and the vertical conveying pipe are telescopic structures with adjustable length.
7. The unloading device for bulk materials from train carriages under electric traction contact networks as described in claim 1, characterized in that: It also includes an operator's cab, which is slidably mounted on the horizontal cantilever beam via a carriage.
8. The unloading device for bulk materials from train carriages under the electric traction contact network as described in claim 7, characterized in that: The operating room has a folding structure, including a lower compartment and an upper compartment. The upper compartment and the lower compartment are connected by hinges. The upper compartment can be flipped down to be side by side with the lower compartment in the horizontal direction.
9. The unloading device for bulk materials from train carriages under electric traction contact networks as described in claim 1, characterized in that: A camera is installed at the end where the horizontal cantilever beam connects to the vertical connecting arm; And / or, a camera is provided at the end of the vertical connecting arm that connects to the horizontal cantilever beam.
10. The unloading device for bulk materials from train carriages under electric traction contact networks as described in claim 1, characterized in that: The vertical connecting arm is a telescopic connecting arm. The vertical connecting arm is connected to the horizontal cantilever beam through a hinge seat and can rotate around the hinge axis on the hinge seat. The other end of the vertical connecting arm is connected to a fixed plate. The material suction head is set on the fixed plate. A winch is set on the horizontal cantilever beam. The rope of the winch is connected to the fixed plate. Alternatively, the vertical connecting arm is a parallel link structure, with one end of the parallel link structure connected to the horizontal cantilever beam and the other end connected to a fixed plate. The material suction head is mounted on the fixed plate, and a winch is mounted on the horizontal cantilever beam. The winch's rope is connected to the fixed plate.