Automatic discharging device of winch trolley

Abstract

The invention provides a winch trolley automatic unloading device which comprises a lifting bucket trolley running along a guide rail, the lifting bucket trolley is provided with a discharging port facing the guide rail, the discharging port is provided with a baffle capable of being opened and closed, the baffle is rotationally connected with a moving mechanism controlling the baffle to act, and connecting rod mechanisms are arranged on the two sides of the lifting bucket trolley. One end of the connecting rod mechanism is used for triggering the connecting rod mechanism when making contact with a trigger arranged at the discharging position of the guide rail, the other end of the connecting rod mechanism is connected with an automatic locking mechanism used for locking the moving mechanism, and the end, away from the baffle, of the moving mechanism is connected with a telescopic component used for driving the moving mechanism back. According to the automatic unloading device of the winch trolley, the door is automatically opened for unloading, overturning is not needed, and the phenomenon of jamming is avoided.

Description

Technical Field

[0001] This application belongs to the field of material conveying, specifically relating to an automatic unloading device for a winch bucket car. Background Technology

[0002] A winch-operated bucket car is a common component used for lifting materials. It includes a winch, wire rope, pulley system, bucket car, counterweight, and guide rails. The winch provides power to control the lifting speed by winding and unwinding the wire rope. The pulley system consists of a drive pulley and a driven pulley; the drive pulley transmits power, and the driven pulley changes direction. The counterweight and bucket car are connected to both ends of the wire rope. The bucket car is the container that carries the load. Figure 1 As shown, the hoisted bucket moves along the guide rail driven by the winch. The top of the bucket is open for loading and unloading materials. The weight of the counterweight is precisely calculated to form a dynamic balance with the bucket when it is unloaded or fully loaded, thereby reducing motor load fluctuations. Lime kilns typically use winch-driven buckets for feeding. When feeding a lime kiln, the metered mixture of limestone and coke is placed into the bucket. The bucket is suspended by a wire rope that passes around the bucket wheel (driven wheel). Through the rotation of the winch's rope hub, the mixture is delivered to the kiln top feed bell via an 8-degree inclined overhead guide rail, and then the mixture is spread into the kiln by a distributor.

[0003] When unloading material from a crane truck, the truck needs to be tilted to empty the material. If the winch's pulling force is too high, causing the crane truck's tilting linkage mechanism to travel too far upwards, the truck may over-tilt and jam, reducing transportation efficiency and posing a safety hazard. See [link / reference needed]. Figure 1 As shown. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides an automatic unloading device for a winch bucket car, which automatically opens the door to unload materials without the need for flipping, thus avoiding jamming.

[0005] The technical solution adopted in this invention is as follows: An automatic unloading device for a winch bucket car includes a hoisting bucket car running along a guide rail. The hoisting bucket car has a discharge port facing the guide rail, and the discharge port has an openable and closable baffle for opening or closing the discharge port. The baffle is connected to a moving mechanism (preferably rotatable, such as a hinge) that controls its movement. Both sides of the hoisting bucket car are provided with linkage mechanisms. One end of the linkage mechanism is used to trigger the linkage mechanism when it comes into contact with a trigger provided at the unloading position on the guide rail. The other end is connected to an automatic locking mechanism for locking the moving mechanism. When the linkage mechanism is not triggered, the automatic locking mechanism keeps the moving mechanism locked to close the discharge port. When the linkage mechanism is triggered, it can release the automatic locking mechanism from locking the moving mechanism, causing the baffle to move downward under the action of the material's gravity, opening the discharge port. The end of the moving mechanism away from the baffle is connected to a telescopic component, so that the moving mechanism can be driven by the baffle to move downward to open the discharge port when the locking of the moving mechanism is released. When unloading is completed, the force is reduced and it is pulled back by the telescopic component, thereby further pulling the baffle to close the discharge port.

[0006] Furthermore, there are two guide rails arranged in parallel and inclined from bottom to top. A connecting rod contact plate is provided on the guide rail at the unloading position. The connecting rod contact plate includes a base plate connected to the guide rail and a stop plate connected to the base plate.

[0007] Furthermore, the crane truck is a box-type structure with an open top. The opening at the top of the crane truck is used for loading materials on the ground. The crane truck includes a front box plate for opening the discharge port (with the position of opening the discharge port as the front), a rear box plate opposite to the front box plate, two side box plates for connecting the front box plate and the rear box plate and arranged in parallel, and a bottom plate opposite to the opening of the crane truck. The side box plates are provided with guide wheels that roll along the guide rail.

[0008] Furthermore, each side panel has an outer shell fixed to its outer wall. The front end of the outer shell forms an opening for the moving mechanism to extend or slide back into the shell. The rear end is provided with an end cap to close the rear opening. The outer shell has an outer shell parallel to the side panel and an upper shell and a lower shell connected between the outer shell and the side panel. The moving mechanism, automatic locking mechanism and telescopic components are all located inside the outer shell. The upper shell has a through slot for the linkage mechanism to pass through.

[0009] Furthermore, a baffle covers the discharge port to prevent material leakage. The upper edge of the baffle is connected to the discharge port of the front box plate via a first hinge. A crossbar connected to a moving mechanism is fixed to the front side of the baffle. The two ends of the crossbar are connected to the front end of the moving mechanism (preferably hinged), so that the baffle can be pushed by the moving mechanism to open and close the discharge port.

[0010] Furthermore, the moving mechanism is a long, narrow closed-loop structure, such as a slender closed-loop structure formed from sheet metal. The moving mechanism includes a front half-ring, a rear half-ring, and a straight segment connecting the front and rear half-rings. The straight segment includes a parallel upper plate and a lower plate, and the inner surface of the lower plate forms a rack extending along the length of the lower plate. A crossbar extends from both sides of the baffle and fixes an outer hinge to each side. The outer hinge is concave and includes a body and two protrusions that protrude from the body and are arranged opposite each other. The two protrusions are provided with spherical grooves with openings facing each other. The front half ring of the moving mechanism is provided with an inner hinge that is connected to the outer hinge. The two sides of the inner hinge are respectively provided with convex circles that move in the spherical grooves. The upper plate and the lower plate of the moving mechanism slide close to the inner wall of the outer shell.

[0011] Furthermore, a stop bar is fixed on the side panel of the crane truck. The stop bar is located inside the moving mechanism, that is, between the upper and lower plates. When the moving mechanism is completely inside the outer shell (at this time, the baffle is engaged with the discharge port), the distance between the stop bar and the rear half ring can be, for example, 1 / 2 to 2 / 3 of the length of the moving mechanism. The stop bar is used to limit the stroke of the moving mechanism and prevent the rear half ring of the moving mechanism from abutting against the automatic locking mechanism.

[0012] Furthermore, the linkage mechanism includes a linkage shaft fixedly connected to the side panel, a sleeve sleeved on the linkage shaft, and a long rod and a short rod connected to the sleeve. The linkage shaft is perpendicular to the side panel. Both the long rod and the short rod are L-shaped, and their short sides are fixedly connected to the sleeve, respectively. Preferably, the long rod and the short rod extend from different sides of the sleeve toward the rear and front of the crane truck, respectively, and then turn toward the top (i.e., closer to the linkage contact plate) and the bottom of the crane truck, respectively. The long rod and the short rod form a lever with the linkage shaft as the fulcrum. The long rod can be closer to the side panel of the crane truck than the short rod. The long rod extends toward the rear end of the crane truck from the sleeve as the base point and then extends upward, with its end extending beyond the top of the crane truck. The short rod extends toward the front end of the crane truck from the sleeve as the base point and then extends downward, with its end connected to the automatic locking mechanism. Preferably, the upward extension direction of the long rod and the downward extension direction of the short rod are parallel or consistent with the length direction of the crane and the guide rail (when the crane is on the guide rail), and when approaching the bottom plate, the contact surface with the bottom plate is approximately perpendicular. Preferably, the length of the long rod is 1.5-2 times the length of the short rod.

[0013] Furthermore, the automatic locking mechanism includes a gear meshing with the rack of the moving mechanism, a gear shaft connected to the gear, a ratchet fixed on the gear shaft, a pawl located on one side of the ratchet to lock the ratchet and connected to the end of the short rod, and a spring damper located below the pawl for elastically constraining the pawl.

[0014] Furthermore, the gear has a central hole through which the gear shaft passes, and the central hole has a radial keyway. The gear shaft has a pin key that mates with the keyway. The part of the gear shaft located outside the moving mechanism is fixedly connected to the ratchet. The two ends of the gear shaft are respectively connected to the first flange bearings fixed to the side plate of the hopper truck and the outer shell. The gear shaft is connected to the inner ring of the first flange bearing. The pawl is rotatably connected to the second flange bearing fixed to the outer shell. The upper part of the pawl is connected to the bottom end of the short rod. The spring damper includes an upper buffer body, a lower buffer body, a guide rod connected between the upper buffer body and the lower buffer body, and a first spring sleeved on the upper buffer body and the lower buffer body. Both the upper buffer body and the lower buffer body have annular protrusions. The first spring is located between the two annular protrusions. The top of the upper buffer body has a first connection port that connects to the pawl. The bottom of the lower buffer body has a second connection port. The second connection port is sleeved on the fixed rod fixed to the side wall of the outer shell. The end of the fixed rod is connected to the inner ring of the third flange bearing set on the side wall of the outer shell.

[0015] Furthermore, the telescopic component is a second spring, with one end of the telescopic component connected to the rear half-ring of the moving mechanism and the other end connected to the end cap at the rear of the housing.

[0016] The beneficial effects of this invention are: This invention discloses an automatic unloading device for a winch bucket car. By installing an openable baffle on the bucket car, unloading can be performed without tilting; simply opening the baffle directly avoids jamming. An automatic locking mechanism and a moving mechanism are incorporated. The moving mechanism is rotatably connected to the baffle, with a rack and pinion meshing with a gear. The gear is coaxially connected to a ratchet, and a pawl locks the ratchet, ensuring the baffle remains tightly closed at the discharge port during transport, preventing material leakage. A connecting rod contact plate and a connecting rod mechanism are also included. When the long rod touches the contact plate, the pawl lifts, releasing the pawl from the ratchet. The baffle opens under the weight of the material, allowing limestone and other materials to slide smoothly. After unloading, the bucket car returns, the long rod leaves the contact plate, the pawl resets under the action of a spring damper, and the pawl locks the ratchet again, closing the baffle. The present invention discloses an automatic unloading device for a winch bucket car, which is purely mechanically driven. Under the action of material gravity, it achieves automatic unloading through a triggering and locking mechanism at a designated position, thereby improving unloading efficiency. At the same time, the automatic locking mechanism and the linkage mechanism are set on both sides of the bucket car, which are triggered and locked simultaneously, increasing the reliability of the device. It is suitable for vertical lifting and unloading operations of bulk materials such as limestone. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the operation of an existing automatic feeding device for a winch, where a is a working principle diagram, b is a schematic diagram of the feeding process of the crane, and c is a schematic diagram of the crane tipping and jamming.

[0018] Figure 2 This is a schematic diagram of an automatic unloading device for a winch bucket car according to the present invention.

[0019] Figure 3 This is a diagram showing the baffle being opened.

[0020] Figure 4 Schematic diagram of automatic locking mechanism Figure 1 .

[0021] Figure 5 Schematic diagram of automatic locking mechanism Figure 2 .

[0022] Figure 6 This is a schematic diagram of the connection between the ratchet and the pawl.

[0023] Figure 7 This is a schematic diagram of a spring damper.

[0024] Figure 8 This is a schematic diagram of a pawl.

[0025] Figure 9 This is a schematic diagram showing the connection between the spring damper and the ratchet.

[0026] Figure 10 This is a schematic diagram of a linkage mechanism.

[0027] Figure 11 This is a schematic diagram of the connection between the gear and the ratchet.

[0028] Figure 12 This is a schematic diagram of the gear shaft.

[0029] Figure 13 This is a schematic diagram of a gear.

[0030] Figure 14 This is a schematic diagram of the moving mechanism.

[0031] Figure 15 This is a schematic diagram of the outer hinge.

[0032] Explanation of reference numerals in the attached figures: 1-Guide rail, 2-Crane truck, 201-Front box panel, 202-Rear box panel, 203-Side box panels, 204-Bottom plate, 205-Guide wheels, 3-Discharge port, 4-Baffle, 5-Moving mechanism, 501-Front end half-ring, 502-Rear end half-ring, 503-Straight section, 504-Rack and pinion, 505-Inner hinge, 506-Convex circle, 507-Stop bar. 6-Linkage mechanism, 601-Linkage shaft, 602-Sleeve, 603-Long rod, 604-Short rod 7-Automatic locking mechanism; 701-Gear; 702-Gear shaft; 703-Ratchet; 704-Pawl; 7041-Connecting groove; 705-Spring damper; 7051-Upper buffer body; 7052-Lower buffer body; 7053-Guide rod; 7054-First spring; 7055-Annular protrusion; 7056-First connecting port; 7057-Second connecting port; 706-Keyway; 707-Pin key; 708-Center hole; 709-First flange bearing; 7010-Second flange bearing; 7011-Third flange bearing. 8-Telescopic components, 9-Linkage contact plate, 901-Base plate, 902-Butt plate 10-Outer shell, 1001-Outer outer shell, 1002-Upper shell, 11-First hinge, 12-Horizontal bar, 13-Outer hinge, 1301-Body, 1302-Protrusion, 1303-Spherical groove. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figure 2-15As shown, an automatic unloading device for a winch bucket car includes a hoisting car 2 running along a guide rail 1. The hoisting car 2 has a discharge port 3 facing the guide rail 1. The discharge port 3 has an openable and closable baffle 4 for opening or closing the discharge port 3. The baffle 4 is connected to a moving mechanism 5 that controls its movement (preferably rotatable, such as hinged). Both sides of the hoisting car 2 are provided with linkage mechanisms 6. One end of the linkage mechanism 6 is used to trigger the linkage mechanism 6 when it comes into contact with a trigger provided at the unloading position on the guide rail. The other end is connected to an automatic locking mechanism 7 for locking the moving mechanism 5. When the linkage mechanism 6 is activated, the automatic locking mechanism 7 keeps the moving mechanism 5 locked to close the discharge port 3. When the linkage mechanism 6 is activated, the automatic locking mechanism 7 can release the lock on the moving mechanism 5, so that the baffle 4 moves downward under the action of the material gravity to open the discharge port 3. The end of the moving mechanism 5 away from the baffle 4 is connected to the telescopic component 8, so that the moving mechanism 5 can be driven by the baffle 4 to move downward to open the discharge port 3 when the lock on the moving mechanism 5 is released. When the unloading is completed, the force is reduced and it is pulled back by the telescopic component 8, thereby further pulling the baffle 4 to close the discharge port 3. In practical applications, the bucket truck 2 is used to load materials such as limestone and coal. Under the action of the winch, the bucket truck 2 moves along the guide rail 1 to transport materials. When it reaches the unloading position, the baffle 4 opens, and the discharge port 3 is used to pour out the materials in the bucket truck 2. The moving mechanism 5 controls the opening or closing of the baffle 4. When it is open, the materials are poured out; when it is closed, the materials are loaded. One end of the linkage mechanism 6 is connected to the automatic locking mechanism 7. The linkage mechanism 6 is used to release the control of the automatic locking mechanism 7 on the moving mechanism 5, so that the moving mechanism 5 can slide. The telescopic component 8 is used to bring the moving mechanism 5 back.

[0035] like Figure 2 As shown, there are two parallel guide rails 1, which are inclined from bottom to top and form a trapezoidal shape. There is a corner at the top, which is the unloading position. A connecting rod contact plate 9 is provided at the unloading position on the guide rail 1. The connecting rod contact plate 9 includes a base plate 901 connected to the guide rail 1 and a stop plate 902 connected to the base plate 901. Preferably, the stop plate 902 is approximately perpendicular to the guide rail 1 in space. The inclination angle of the guide rail 1 relative to the vertical direction can be 5-30 degrees, preferably 6-20 degrees, and more preferably 8-15 degrees. The hoist trolley 2 moves upward with the connecting rod mechanism 6, and finally the connecting rod mechanism 6 touches the stop plate 902.

[0036] like Figure 2 , Figure 3As shown, the crane truck 2 is a box-type structure with an open top. The opening at the top of the crane truck 2 is used for loading materials on the ground. The crane truck 2 includes a front box plate 201 for opening the discharge port 3 (with the position of opening the discharge port as the front), a rear box plate 202 opposite to the front box plate 201, two side box plates 203 for connecting the front box plate 201 and the rear box plate 202 and arranged in parallel, and a bottom plate 204 opposite to the opening (i.e., the loading port) of the crane truck 2. The side box plates 203 are provided with guide wheels 205 that roll along the guide rail 1. Preferably, there are two guide wheels 205 on each side of the crane truck 2 (one above and one below), for a total of 4. For example, one guide wheel 205 is provided on each of the upper and lower sides of the side box plate 203. The distance between the two side box plates 203 is preferably less than the distance between the two guide rails 1, so that the baffle 4 can open and close smoothly.

[0037] like Figure 2 , Figure 3 As shown, each side panel 203 has an outer shell 10 fixed to its outer wall. The cross-section of the outer shell 10 is square. The front end of the outer shell 10 forms an opening for the moving mechanism 5 to extend or slide back into the shell. The rear end is provided with an end cap to close the rear opening. The outer shell 10 has an outer shell 1001 that is approximately parallel to the side panel 203, an upper shell 1002 and a lower shell connected between the outer shell 1001 and the side panel 203. The moving mechanism 5, the automatic locking mechanism 7 and the telescopic component 8 are all located inside the outer shell 10. The upper shell 1002 has a through slot for the linkage mechanism 6 to pass through. The through slot can be, for example, long and narrow. The extension direction of the through slot is consistent with the length direction of the outer shell 10. The outer shell 10 is, for example, welded to the crane truck 2.

[0038] like Figure 3 , Figure 5 As shown, the baffle 4 covers the discharge port 3 to prevent material leakage. The upper edge of the baffle 4 is connected to the discharge port of the front box plate 201 via the first hinge 11 to realize the opening and closing of the baffle 4. The first hinge 11 can be, for example, a hinged hinge. A crossbar 12 is fixed to the front side of the baffle 4. The two ends of the crossbar 12 are connected to the front end of the moving mechanism 5 (preferably hinged), so that the moving mechanism 5 can push the baffle 4 to open and close the discharge port 3.

[0039] like Figure 3 , Figure 4 , Figure 5 , Figure 14 As shown, the moving mechanism 5 is a long strip closed-loop structure, such as a slender closed-loop structure formed by a plate. The moving mechanism 5 includes a front half-ring 501, a rear half-ring 502 and a straight segment 503 connecting the front half-ring 501 and the rear half-ring 502. The straight segment 503 includes an upper plate and a lower plate arranged in parallel. The inner side of the lower plate forms a rack 504 extending along the length direction of the lower plate.

[0040] The crossbar 12 extends out of both sides of the baffle 4 and is fixed with an outer hinge 13. The outer hinge 13 is concave and includes a body 1301 and two protrusions 1302 that protrude from the body 1301 and are arranged opposite each other. The two protrusions 1302 are provided with spherical grooves 1303 with openings opposite each other. The front semi-ring 501 is provided with an inner hinge 505 connected to the outer hinge 13. The two sides of the inner hinge 505 are respectively provided with convex circles (or spherical surfaces) 506 that move in the spherical grooves 1303, so as to realize the rotational connection between the crossbar 12 and the moving mechanism 5. The upper plate and the lower plate of the straight section 503 slide close to the inner wall of the outer shell 10.

[0041] Preferably, a stop bar 507 is fixed on the side panel 203 of the crane 2. The stop bar 507 is located inside the moving mechanism, that is, between the upper and lower panels. When the moving mechanism 5 is completely inside the outer casing 10 (at this time, the baffle 4 is fastened to the discharge port 3), the distance between the stop bar 507 and the rear half ring 502 can be, for example, 1 / 2 to 2 / 3 of the length of the moving mechanism 5. The stop bar 507 is used to limit the stroke of the moving mechanism 5 and prevent the rear half ring 502 of the moving mechanism 5 from abutting the automatic locking mechanism 7.

[0042] like Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 10As shown, the linkage mechanism 6 includes a linkage shaft 601 fixedly connected to the side box plate 203, a sleeve 602 sleeved on the linkage shaft 601, a long rod 603 and a short rod 604 connected to the sleeve 602. The linkage shaft 601 is arranged approximately perpendicular to the side box plate 203. Preferably, the free end of the linkage shaft 601 is enlarged to prevent the sleeve 602 from slipping off the linkage shaft 601. The long rod 603 and the short rod 604 are both L-shaped. The short sides of the long rod 603 and the short rod 604 are fixedly connected to the sleeve 602, respectively. Preferably, the long rod 603 and the short rod 604 extend from different sides of the sleeve 602, such as opposite sides, toward the rear and front of the hoist 2, respectively, and then turn toward the top (i.e., closer to the linkage contact plate 9) and the bottom of the hoist 2, respectively. The long rod 603 and the short rod 604 form a lever with the connecting rod shaft 601 as the fulcrum. The long rod 603 can be closer to the side panel 203 of the crane trolley 2 than the short rod 604. The long rod 603 extends towards the rear end of the crane trolley 2 with the sleeve 602 as the base point and then extends upward, with its end extending beyond the top of the crane trolley 2. The short rod 604 extends towards the front end of the crane trolley 2 with the sleeve 602 as the base point and then extends downward, with its end connected to the automatic locking mechanism 7. Preferably, the upward extension direction of the long rod 603 and the downward extension direction of the short rod 604 are parallel or consistent with the length direction of the crane trolley 2 and the guide rail 1 (when the crane trolley is on the guide rail 1). When approaching the abutment plate 902, the contact surface with the abutment plate 902 is approximately perpendicular. Preferably, the length of the long rod 603 is 1.5-2 times the length of the short rod 604. In practical application, the crane 2 moves upward with the linkage mechanism 6. When it reaches the position where unloading is required, the top of the long rod 603 touches the stop plate 902, and the long rod 603 is pressed down. Both the long rod 603 and the short rod 604 rotate counterclockwise around the linkage shaft 601 (towards...). Figure 2 (Using the placement position as a reference), the short rod 604 moves upward.

[0043] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 11 , Figure 12 , Figure 13 As shown, the automatic locking mechanism 7 includes a gear 701 that meshes with the rack 504 of the moving mechanism 5, a gear shaft 702 connected to the gear 701, a ratchet 703 fixed to both ends of the gear shaft 702, a pawl 704 disposed on one side of the ratchet 703 to lock the ratchet 703 and connected to the end of the short rod 604, and a spring damper 705 disposed below the pawl 704 for elastically constraining the pawl.

[0044] The gear 701 has a central hole 708 through which the gear shaft 702 passes. The central hole 708 has a radial keyway 706. The gear shaft 702 has a key 707 that engages with the keyway 706. The engagement of the keyway 706 and the key 707 allows the ratchet 703 to rotate synchronously with the gear 701. The portion of the gear shaft 702 located outside the moving mechanism 5 is fixedly connected to the ratchet 703. The ratchet 703 and the gear 701 are coaxially connected via the gear shaft 702. The gear 701 meshes with the rack 504. When the ratchet 703 is locked in one direction by the pawl 704, the rack 504 cannot move, and thus the moving mechanism 5 cannot move.

[0045] Both ends of the gear shaft 702 are connected to the first flange bearing 709 passing through the side panel 203 and the outer casing 10 of the hoist truck 2, respectively. The gear shaft 702 is connected to the inner ring of the first flange bearing 709 to realize the rotation of the gear shaft 702. The pawl 704 is rotatably connected to the second flange bearing 7010 fixed on the outer casing 10. The upper part of the pawl 704 is connected to the end of the short rod 604. The connection method can be, for example, a hinged or fixed connection. When the short rod 604 moves upward, the pawl 704 is lifted, releasing the pawl 704 from locking the ratchet 703.

[0046] The spring damper 705 can be a common spring damper, for example, including an upper buffer body 7051, a lower buffer body 7052, a guide rod 7053 connecting the upper buffer body 7051 and the lower buffer body 7052, and a first spring 7054 sleeved on the upper buffer body 7051 and the lower buffer body 7052. Both the upper buffer body 7051 and the lower buffer body 7052 are provided with annular protrusions 7055, and the first spring 7054 is disposed between the two annular protrusions 7055. The top of the 7051 has a first connection port 7056 for connecting to the pawl 704. The first connection port 7056 extends into the connection groove 7041 below the pawl 704 and a bolt is screwed in to connect the spring damper 705 to the pawl 704. The bottom of the lower buffer body 7052 has a second connection port 7057, which is sleeved on a fixing rod fixed to the housing 10. The end of the fixing rod is connected to the inner ring of the third flange bearing 7011 set on the housing 10. When the pawl 704 is lifted, the spring damper 705 rotates and the first spring 7054 is stretched. When the long rod 603 leaves the stop plate 902, the first spring 7054 retracts and rotates the pawl 704, while the short rod 604 rotates in the opposite direction, and the pawl 704 locks the ratchet 703 again.

[0047] like Figure 4As shown, the telescopic component 8 is a second spring. One end of the telescopic component 8 is connected to the rear half-ring 502 of the moving mechanism 5, and the other end is connected to the end cap at the rear end of the housing 10. Preferably, there are, for example, two telescopic components 8 on each side of the hoist 2, and one telescopic component 8 is fixedly connected to each side of the rear half-ring of the moving mechanism 5. In practical application, the bucket truck 2 carries the material and runs upward along the guide rail 1. The baffle 4 covers the discharge port 3. The moving mechanism 5 is located inside the outer shell 10. The ratchet 703 is locked by the pawl 704, so the moving mechanism 5 cannot move. The baffle 4 remains closed. The bucket truck 2 continues to run until the top of the long rod 603 touches the stop plate 902. The long rod 603 is pressed down, and both the long rod 603 and the short rod 604 rotate counterclockwise around the connecting rod shaft 601. The pawl 704 is lifted, releasing the lock of the pawl 704 on the ratchet 703. The moving mechanism 5 can move freely. At the same time, because the guide rail 1 is inclined, the baffle 4 is opened under the gravity of the material, and the material is poured out. The baffle 4, along with the moving mechanism 5, extends out of the outer shell 10. When the two springs are stretched, the rack 504 moves synchronously when the moving mechanism 5 moves. The rack 504 meshes with the gear 701, and the rack 504 drives the gear 701 to rotate in place. At the same time, the ratchet 703 rotates coaxially. During the material discharge process, as the material decreases, the effect of gravity gradually weakens. The second spring carries the moving mechanism 5 back to the outer shell 10. When the baffle 4 is no longer affected by the gravity of the material, the unloading is completed. The second spring pulls the moving mechanism 5 back to the initial position. The baffle 4 covers the discharge port 3, and the crane 2 begins to return to the ground. The long rod 603 leaves the stop plate 902. The first spring 7054 rotates with the pawl 704, while the short rod 604 rotates in the opposite direction. The pawl 704 locks the ratchet 703 in one direction again. Example

[0048] The operation process of the automatic unloading device for a winch bucket car according to the present invention includes: In the initial state, the baffle 4 is tightly closed to the discharge port 3, the moving mechanism 5 is located inside the housing 10, the ratchet 703 is locked by the pawl 704, and the baffle 4 cannot be opened.

[0049] After the limestone and coke mixture is loaded onto the ground, the winch drives the crane 2 to move upward along the guide rail 1. When the end of the long rod 603 touches the stop plate 902, the long rod 603 is pressed down. Both the long rod 603 and the short rod 604 rotate counterclockwise around the connecting rod shaft 601. The pawl 704 is lifted upward, releasing the pawl 704 from locking the ratchet 703. As the spring damper 705 rotates, the first spring 7054 is stretched. Under the action of the material's gravity, the baffle 4 is opened, and the material is poured out. The baffle 4, along with the moving mechanism 5, extends out of the outer casing 10. The second spring is pulled... As the material is discharged, the effect of gravity gradually weakens as the material decreases. The second spring, along with the moving mechanism 5, gradually returns to the outer casing 10. When the baffle 4 is no longer affected by the gravity of the material, the unloading is completed. The second spring pulls the moving mechanism 5 back to its initial position. During the movement of the rack 504, the gear 701 and ratchet 703 rotate in opposite directions. The baffle 4 covers the discharge port 3, and the crane 2 begins to return to the ground. The long rod 603 leaves the abutment plate 902. The first spring 7054 rotates the pawl 704, while the short rod 604 rotates in the opposite direction. The pawl 704 locks the ratchet 703 in one direction again.

[0050] According to the above embodiments, the purely mechanical drive enables automatic unloading under the action of material gravity through a triggering and locking mechanism at a designated position, thereby improving unloading efficiency. At the same time, the automatic locking mechanism and linkage mechanism are set on both sides of the crane truck, triggering and locking simultaneously, increasing the reliability of the device and directly preventing the crane truck from jamming. It is suitable for vertical lifting and unloading operations of bulk materials such as limestone.

[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An automatic unloading device for a winch bucket car, characterized in that, It includes a crane truck (2) running along a guide rail (1), the crane truck (2) having a discharge port (3) facing the guide rail (1), the discharge port (3) having an openable baffle (4) for opening or closing the discharge port (3), the baffle (4) being connected to a moving mechanism (5) controlling its movement, and both sides of the crane truck (2) having a linkage mechanism (6), one end of the linkage mechanism (6) being used to trigger the linkage mechanism (6) when it comes into contact with a triggering object set at the unloading position of the guide rail, and the other end being connected to an automatic locking mechanism (7) for locking the moving mechanism (5), the automatic locking mechanism (7) keeping the linkage mechanism (5) locked when the linkage mechanism (6) is not triggered. The locking mechanism (5) is held to close the discharge port (3). When the linkage mechanism (6) is triggered, the locking mechanism (7) can release the locking mechanism (7) on the moving mechanism (5), so that the baffle (4) moves downward under the action of the material gravity to open the discharge port (3). The end of the moving mechanism (5) away from the baffle (4) is connected to the telescopic component (8), so that the moving mechanism (5) can be driven by the baffle (4) to move downward to open the discharge port (3) when the locking mechanism (5) is released. When the unloading is completed, it is pulled back by the telescopic component (8) due to the reduced force, thereby further pulling the baffle (4) to close the discharge port (3).

2. The automatic unloading device for winch bucket cars according to claim 1, characterized in that, There are two guide rails (1) that are inclined from bottom to top. A connecting rod contact plate (9) is provided at the unloading position on the guide rail (1). The connecting rod contact plate (9) includes a base plate (901) connected to the guide rail (1) and a stop plate (902) connected to the base plate (901).

3. The automatic unloading device for a winch bucket car according to claim 1 or 2, characterized in that, The crane truck (2) is a box-type structure with an open top. The opening at the top of the crane truck (2) is used for loading materials on the ground. The crane truck (2) includes a front box plate (201) for opening the discharge port (3), a rear box plate (202) opposite to the front box plate (201), two side box plates (203) for connecting the front box plate (201) and the rear box plate (202) and arranged in parallel, and a bottom plate opposite to the opening of the crane truck (2). The side box plates (203) are provided with guide wheels (205) that roll along the guide rail (1).

4. The automatic unloading device for a winch bucket car according to claim 3, characterized in that, Each side panel (203) has an outer shell (10) fixed to its outer wall. The front end of the outer shell (10) forms an opening for the moving mechanism (5) to extend or slide back into the shell. The rear end is provided with an end cap to close the rear opening. The outer shell (10) has an outer shell (1001) that is roughly parallel to the side panel (203) and an upper shell (1002) and a lower shell that connect the outer shell (1001) and the side panel (203). The moving mechanism (5), the automatic locking mechanism (7) and the telescopic component (8) are all located inside the outer shell (10). The upper shell (1002) has a through slot for the trigger linkage mechanism (6) to pass through.

5. The automatic unloading device for a winch bucket car according to claim 3 or 4, characterized in that, A baffle (4) covers the discharge port (3) to prevent material leakage. The upper edge of the baffle (4) is connected to the discharge port of the front box plate (201) via a first hinge (11). A crossbar (12) is fixed to the front side of the baffle (4). The two ends of the crossbar (12) are connected to the front end of the moving mechanism (5), so that the baffle (4) can be pushed by the moving mechanism (5) to open and close the discharge port (3).

6. The automatic unloading device for a winch bucket car according to any one of claims 1-5, characterized in that, The moving mechanism (5) is a slender closed-loop structure formed by a plate. The moving mechanism (5) includes a front half-ring (501), a rear half-ring (502), and a straight segment (503) connecting the front half-ring (501) and the rear half-ring (502). The straight segment (503) includes an upper plate and a lower plate arranged in parallel. The inner side of the lower plate forms a rack (504) extending along the length direction of the lower plate. Preferably, the crossbar (12) extends out from both sides of the baffle (4) and is fixed with an outer hinge (13) on each side. The outer hinge (13) is concave and includes a body (1301) and two protrusions (1302) protruding from the body (1301) and arranged opposite to each other. The two protrusions (1302) are provided with spherical grooves (1303) with opposite openings. The front half ring (501) is provided with an inner hinge (505) connected to the outer hinge (13) on the outside. The inner hinge (505) is provided with convex circles (506) on both sides that move in the spherical groove (1303) to realize the rotational connection between the crossbar (12) and the moving mechanism (5). Preferably, a stop bar (507) is fixed on the side box plate (203) of the hoist (2). The stop bar (507) is located inside the moving mechanism (5). When the moving mechanism (5) is completely inside the outer shell (10), the baffle (4) is engaged with the discharge port (3). The distance between the stop bar (507) and the rear half ring (502) is 1 / 2 to 2 / 3 of the length of the moving mechanism (5). The stop bar (507) is used to limit the stroke of the moving mechanism (5) and prevent the rear half ring (502) of the moving mechanism (5) from abutting the automatic locking mechanism (7).

7. The automatic unloading device for a winch bucket car according to any one of claims 3-6, characterized in that, The linkage mechanism (6) includes a linkage shaft (601) fixedly connected to the side box plate (203), a sleeve (602) sleeved on the linkage shaft (601), a long rod (603) and a short rod (604) connected to the sleeve (602). The linkage shaft (601) is set perpendicular to the side box plate (203). The long rod (603) and the short rod (604) are both L-shaped. The short sides of the long rod (603) and the short rod (604) are respectively connected to the sleeve (602). The long rod (603) and the short rod (604) are connected from the sleeve (602). The long rod (603) and the short rod (604) extend to the rear and front of the crane truck (2) respectively, and then turn to the top and bottom of the crane truck (2) respectively. The long rod (603) and the short rod (604) form a lever with the connecting rod shaft (601) as the fulcrum. The long rod (603) extends to the rear end of the crane truck (2) with the sleeve (602) as the base point and then extends upward and the end extends beyond the top of the crane truck (2). The short rod (604) extends to the front end of the crane truck (2) with the sleeve (602) as the base point and then extends downward and the end is connected to the automatic locking mechanism (7).

8. The automatic unloading device for a winch bucket car according to any one of claims 1-7, characterized in that, The automatic locking mechanism (7) includes a gear (701) meshing with the rack (504) of the moving mechanism (5), a gear shaft (702) connected to the gear (701), a ratchet (703) fixed to both ends of the gear shaft (702), a pawl (704) located on one side of the ratchet (703) to lock the ratchet (703) and connected to the end of the short rod (604), and a spring damper (705) located below the pawl (704) to restrain the pawl.

9. The automatic unloading device for a winch bucket car according to claim 8, characterized in that, The gear (701) has a central hole (708) through which the gear shaft (702) passes. The central hole (708) has a radial keyway (706). The gear shaft (702) has a key (707) that engages with the keyway (706). The portion of the gear shaft (702) located outside the moving mechanism (5) is fixedly connected to the ratchet (703). Both ends of the gear shaft (702) are connected to the first flange bearing (709) respectively. The gear shaft (702) is connected to the inner ring of the first flange bearing (709). The pawl (704) is rotatably connected to the second flange bearing (7010). The upper part of the pawl (704) is connected to the end of the short rod (604). The spring damper (705) includes an upper buffer body (7051), a lower buffer body (7052), a guide rod (7053) connecting the upper buffer body (7051) and the lower buffer body (7052), and a first spring (7054) sleeved on the upper buffer body (7051) and the lower buffer body (7052). Both the upper buffer body (7051) and the lower buffer body (7052) are provided with annular protrusions (7055). 054) Located between two annular protrusions (7055), the upper buffer body (7051) has a first connection port (7056) at the top that connects to the pawl (704), and the lower buffer body (7052) has a second connection port (7057) at the bottom. The second connection port (7057) is sleeved on a fixing rod fixed on the outer shell (10), and the end of the fixing rod is connected to the inner ring of the third flange bearing (7011) set on the outer shell (10).

10. The automatic unloading device for a winch bucket car according to any one of claims 6-9, characterized in that, The telescopic component (8) is a second spring. One end of the telescopic component (8) is connected to the rear half ring (502) of the moving mechanism (5), and the other end is connected to the end cap at the rear end of the outer casing (10).

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