A steel plate cooling bed loading trolley

Abstract

The application discloses a steel plate cold bed loading trolley, which comprises a trolley body, a chain for driving the trolley body to move, a lifting plate arranged above the trolley body and capable of lifting and descending on the trolley body, four stirring teeth arranged at four corners of the lifting plate and capable of stirring the steel plate, the stirring teeth being capable of swinging on the lifting plate, a guide mechanism for guiding the moving track of the lifting plate and a pushing mechanism for pushing the steel plate to move left, and a buffer mechanism arranged between the chain end and the trolley body. The buffer mechanism can be adjusted to adapt to external impact pressure, the chain is prevented from being broken, and the reliability is good. Meanwhile, the lifting of the stirring teeth is realized through a mechanical structure, and the cost is low.

Description

Technical Field

[0001] This invention relates to the field of steel conveying technology, specifically a steel plate cold bed loading trolley. Background Technology

[0002] The function of the cooling bed loading device is to transport the hot-rolled plates after rolling and hot straightening from the roller conveyor to the cooling bed table for cooling. Currently, the cooling bed loading device adopts an oscillating chain type, that is, the oscillating chain lifts and lowers, so that the chain carries the steel plate from the roller conveyor to the cooling bed table.

[0003] In existing technologies, steel plate cooling bed loading trolleys are typically moved via tie rods or wire ropes. When the trolley starts to lift or brakes, the rigid connection of the tie rod or wire rope will be subjected to overload tension due to inertia, causing the welded part at the end of the tie rod to break, affecting production line operations. Furthermore, existing technologies all use hydraulic cylinders to drive the gears for lifting and lowering, which is costly and unreliable. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a steel plate cooling bed loading trolley that can adapt to the adjustment of external impact pressure, prevent chain breakage, has good reliability, and achieves the lifting and lowering of the gear teeth through a mechanical structure, resulting in low cost.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A steel plate cooling bed loading trolley includes a trolley body and a chain for driving the trolley body to move, and a lifting plate disposed above the trolley body and raised and lowered on the trolley body. The lifting plate has teeth at four corners for moving the steel plate. The teeth swing on the lifting plate. The trolley also includes a guide mechanism for guiding the movement trajectory of the lifting plate and a push mechanism for pushing the steel plate to the left. A buffer mechanism is provided between the end of the chain and the trolley body.

[0007] The teeth are right-angled triangular plates, the lifting plate is provided with a support rod, the position of the teeth is rotatably connected to the upper end of the support rod, the lifting plate is provided with a limiting head that cooperates with the bottom of the teeth, and a first tension spring is provided between the teeth and the lifting plate.

[0008] The guiding mechanism includes guide wheels symmetrically arranged at both ends of the lifting plate and guide plates symmetrically arranged on both sides of the trolley body. The guide plates are provided with guide holes that cooperate with the guide wheels. The guide holes include a horizontal part in the middle and arc-shaped parts arranged at both ends of the horizontal part. The arc-shaped parts are bent downward.

[0009] The pushing mechanism includes a rotating frame located at the right end of the trolley body. The rotating frame is composed of V-shaped frames symmetrically arranged on both sides of the trolley body. The corner of the rotating frame is rotatably connected to the trolley body. The left end of the rotating frame is engaged with the bottom of the lifting plate, and the right end of the rotating frame is engaged with the steel plate.

[0010] The buffer mechanism includes a housing and a first connecting plate and a second connecting plate respectively disposed at both ends of the housing. A hydraulic cylinder is provided inside the housing. The piston rod end of the hydraulic cylinder extends out of the housing and is connected to the first connecting plate. The lower end of the housing is fixedly connected to the second connecting plate. The second connecting plate is fixed on the trolley body. The first connecting plate is connected to the chain.

[0011] Furthermore, the lower end of the lifting plate is provided with a guide rod, which passes through the trolley body and is slidably connected to the trolley body.

[0012] Furthermore, the left end of the symmetrical V-shaped frame is connected by a first connecting rod, which is located below the lifting plate.

[0013] Furthermore, the right end of the V-shaped frame is connected by a second connecting rod, and the right end of the trolley body is provided with a mounting plate. The second connecting rod and the mounting plate are connected by a second tension spring.

[0014] Furthermore, the right end of the rotating frame is provided with a pusher, and the left end of the pusher is provided with a first roller that cooperates with the steel plate.

[0015] Furthermore, it also includes a positioning frame that works with the rotating frame to position the steel plate. A fixed frame is provided on the ground. The middle position of the positioning frame is rotatably connected to the fixed frame. The lower end of the positioning frame works with the left end of the trolley body. A second roller is provided on the upper end of the positioning frame. A motor that drives the second roller to rotate is provided on the positioning frame.

[0016] Furthermore, two hydraulic cylinders are arranged side by side, with the cylinder body fixed inside the housing and the piston rod connected to the first connecting plate via a pin.

[0017] Furthermore, the lower end of the trolley body is provided with a groove that cooperates with the chain.

[0018] The beneficial effects of this invention are:

[0019] 1. In this invention, the paddle is a right-angled triangular plate. A support rod is provided on the lifting plate. The position of the paddle is rotatably connected to the upper end of the support rod. A limiting head is provided on the lifting plate to cooperate with the bottom of the paddle. A first tension spring is provided between the paddle and the lifting plate. The upper end of the first tension spring is connected to the right-angled side of the paddle, and the lower end of the first tension spring is connected to the lifting plate. The hypotenuse of the paddle is located on the right side. When the trolley body moves to the left, the right-angled side of the paddle contacts the steel plate. Under the action of the limiting head, the steel plate is pushed to the left. When returning to the original position, the hypotenuse of the paddle will contact the steel plate, overcoming the elastic force of the first tension spring. The paddle flips over and will not interfere with the movement of the trolley. When the trolley returns to the initial position, the paddle resets under the action of the elastic force of the first tension spring.

[0020] 2. The guiding mechanism in this invention includes guide wheels symmetrically arranged at both ends of the lifting plate and guide plates symmetrically arranged on both sides of the trolley body. The guide plates are provided with guide holes that cooperate with the guide wheels. Each guide hole includes a horizontal section in the middle and arc-shaped sections at both ends of the horizontal section. The arc-shaped sections curve downwards. When the trolley body moves left and right, the guide wheels and guide holes guide the movement trajectory of the lifting plate. That is, when the lifting plate is at both ends, it will descend to the bottom without interfering with the translation of the steel plate. Simultaneously, when the guide wheels cooperate with the horizontal section, the shift teeth are at the highest point and extend out of the working platform, enabling the pushing of the steel plate. The lifting of the lifting plate and the movement of the trolley are linked through a mechanical mechanism, eliminating the need for a separate hydraulic drive and reducing costs.

[0021] 3. The pushing mechanism in this invention includes a rotating frame located at the right end of the trolley body. The rotating frame is composed of V-shaped frames symmetrically arranged on both sides of the trolley body. The corner of the rotating frame is rotatably connected to the trolley body. The left end of the rotating frame engages with the bottom of the lifting plate, and the right end of the rotating frame engages with the steel plate. When the trolley body moves to the leftmost position, the lifting plate descends under the action of the arc-shaped guide hole, and the lifting plate presses down on the rotating frame. The rotating frame rotates counterclockwise, and the right end of the rotating frame pushes the steel plate to the left a small distance to prevent interference between the pawl and the steel plate when the lifting plate descends. When the trolley body moves to the rightmost position, the lifting plate descends, and the lifting plate presses down on the rotating frame. The rotating frame rotates counterclockwise, and the right end of the rotating frame pushes the steel plate to the left a small distance to ensure that the steel plate is not on the upper end of the pawl, thus ensuring that the left end of the pawl contacts the steel plate when the pawl moves to the left.

[0022] 4. The buffer mechanism in this invention includes a housing and a first connecting plate and a second connecting plate respectively disposed at both ends of the housing. A hydraulic cylinder is installed inside the housing. The piston rod end of the hydraulic cylinder extends out of the housing and connects to the first connecting plate. The lower end of the housing is fixedly connected to the second connecting plate, which is fixed to the trolley body. The first connecting plate is connected to the chain. The shock-absorbing housing contains two hydraulic cylinders, reducing the size of the components and allowing for a wider range of tension adjustment. The hydraulic cylinder adjusts the tension of the cylinder rod through an inlet pipe, an outlet pipe, a hydraulic system, and a pressure valve to adapt to adjustments in external impact pressure. The shock-absorbing housing has four small holes to facilitate the passage of hydraulic cylinders. The shock-absorbing housing has a housing plate to protect the hydraulic cylinder from collisions and to ensure personnel safety. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is the front view of the present invention;

[0026] Figure 3 This is a schematic diagram of the main body structure of the vehicle of the present invention. Figure 1 ;

[0027] Figure 4 This is a front view of the vehicle body of the present invention;

[0028] Figure 5 This is a schematic diagram of the main body structure of the vehicle of the present invention. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the buffer mechanism of the present invention;

[0030] Figure 7 This is a cross-sectional view of the buffer mechanism of the present invention.

[0031] In the diagram: 1. Cart body; 2. Lifting plate; 3. Gear; 4. Chain; 5. Support rod; 6. Limiting head; 7. First tension spring; 8. Guide wheel; 9. Guide plate; 10. Guide hole; 11. Rotating frame; 12. Box; 13. First connecting plate; 14. Second connecting plate; 15. Hydraulic cylinder; 16. Guide rod; 17. First connecting rod; 18. Second connecting rod; 19. Mounting plate; 20. Second tension spring; 21. Push frame; 22. First roller; 23. Positioning frame; 24. Second roller; 25. Motor. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0033] like Figure 1 As shown, a steel plate cooling bed loading trolley includes a trolley body 1 and a chain 4 for driving the trolley body 1 to move. It also includes a lifting plate 2 disposed above the trolley body 1 and raised and lowered on the trolley body 1. The lifting plate 2 has four corners with teeth 3 for moving the steel plate. The teeth 3 swing on the lifting plate 2. It also includes a guide mechanism for guiding the movement trajectory of the lifting plate 2 and a pushing mechanism for pushing the steel plate to the left. A buffer mechanism is provided between the end of the chain 4 and the trolley body 1.

[0034] like Figure 4 As shown, the tooth 3 is a right-angled triangular plate. The lifting plate 2 is provided with a support rod 5. The position of the tooth 3 is rotatably connected to the upper end of the support rod 5. The lifting plate 2 is provided with a limiting head 6 that cooperates with the bottom of the tooth 3. A first tension spring 7 is provided between the tooth 3 and the lifting plate 2. The upper end of the first tension spring 7 is connected to the right-angled side of the tooth 3, and the lower end of the first tension spring 7 is connected to the lifting plate 2. The hypotenuse of the tooth 3 is located on the right side. When the trolley body 1 moves to the left, the right-angled side of the tooth 3 contacts the steel plate. Under the action of the limiting head 6, the steel plate is pushed to the left. When returning to the original position, the hypotenuse of the tooth 3 will contact the steel plate, overcoming the elastic force of the first tension spring 7. The tooth 3 flips over and will not interfere with the movement of the trolley. When the trolley returns to the initial position, the tooth 3 resets under the action of the elastic force of the first tension spring 7.

[0035] like Figure 1 and Figure 2 As shown, the guiding mechanism includes guide wheels 8 symmetrically arranged at both ends of the lifting plate 2 and guide plates 9 symmetrically arranged on both sides of the trolley body 1. The guide plates 9 have guide holes 10 that mate with the guide wheels 8. Each guide hole 10 includes a horizontal section in the middle and arc-shaped sections at both ends of the horizontal section. The arc-shaped sections curve downwards. When the trolley body 1 moves left and right, the guide wheels 8 and guide holes 10 guide the movement trajectory of the lifting plate 2. That is, when the lifting plate 2 is at both ends, it will descend to the bottom without interfering with the translation of the steel plate. Simultaneously, when the guide wheels 8 mate with the horizontal section, the shift teeth 3 are at the highest point and extend out of the working platform, enabling the pushing of the steel plate. The lifting of the lifting plate and the movement of the trolley are linked through a mechanical mechanism, eliminating the need for a separate hydraulic drive and reducing costs.

[0036] like Figure 4 and Figure 5 As shown, the pushing mechanism includes a rotating frame 11 located at the right end of the trolley body 1. The rotating frame 11 is composed of V-shaped frames symmetrically arranged on both sides of the trolley body 1. The corner of the rotating frame 11 is rotatably connected to the trolley body 1. The left end of the rotating frame 11 engages with the bottom of the lifting plate 2, and the right end of the rotating frame 11 engages with the steel plate. When the trolley body 1 moves to the leftmost position, the lifting plate 2 descends under the action of the arc-shaped guide hole, and the lifting plate 2 presses down on the rotating frame 11. The rotating frame 11 rotates counterclockwise, and the right end of the rotating frame 11 pushes the steel plate to the left a small distance to prevent interference between the pawl 3 and the steel plate when the lifting plate 2 descends. When the trolley body 1 moves to the rightmost position, the lifting plate 2 descends, and the lifting plate 2 presses down on the rotating frame 11. The rotating frame 11 rotates counterclockwise, and the right end of the rotating frame 11 pushes the steel plate to the left a small distance to prevent the steel plate from being on the upper end of the pawl, ensuring that the left end of the pawl contacts the steel plate when the pawl moves to the left.

[0037] like Figure 6 and Figure 7 As shown, the buffer mechanism includes a housing 12 and a first connecting plate 13 and a second connecting plate 14 respectively disposed at both ends of the housing 12. A hydraulic cylinder 15 is installed inside the housing 12. The piston rod end of the hydraulic cylinder 15 extends out of the housing 12 and connects to the first connecting plate 13. The lower end of the housing 12 is fixedly connected to the second connecting plate 14, which is fixed to the trolley body 1. The first connecting plate 13 is connected to the chain. The shock absorber housing contains two hydraulic cylinders, reducing the size of the components and allowing for a wider range of tension adjustment. The hydraulic cylinders adjust the tension of the cylinder rod through inlet pipes, outlet pipes, a hydraulic system, and pressure valves to adapt to external impact pressure adjustments. The shock absorber housing has four small holes for easy passage of hydraulic cylinders. The shock absorber housing has a housing plate to protect the hydraulic cylinders from collisions and to ensure personnel safety.

[0038] like Figure 4 As shown, the lower end of the lifting plate 2 is provided with a guide rod 16, which passes through the trolley body 1 and is slidably connected to the trolley body 1.

[0039] like Figure 5 As shown, the left end of the symmetrical V-shaped frame is connected by the first connecting rod 17. The first connecting rod 17 is located below the lifting plate 2. When the lifting plate 2 descends, the V-shaped frames on both sides swing synchronously through the first connecting rod 17, so that the steel plate is subjected to balanced force.

[0040] like Figure 5As shown, the right end of the V-shaped frame is connected by a second connecting rod 18, and the right end of the trolley body 1 is provided with a mounting plate 19. The second connecting rod 18 and the mounting plate 19 are connected by a second tension spring 20. The V-shaped frame is reset by the second tension spring 20. That is, when the lifting plate 2 is raised, the V-shaped frame rotates to the right and resets under the action of the elastic force of the second tension spring 20, so that the trolley will not interfere with the steel plate when it moves.

[0041] like Figure 3 As shown, the right end of the rotating frame 11 is provided with a pusher 21, and the left end of the pusher 21 is provided with a first roller 22 that cooperates with the steel plate. When the V-shaped frame swings and pushes the steel plate, the first roller 22 contacts the side of the steel plate. When the conveying platform conveys the steel plate, the first roller 22 can reduce the friction between itself and the steel plate and will not lock the steel plate.

[0042] like Figure 1 As shown, it also includes a positioning frame 23 that cooperates with the rotating frame 11 to position the steel plate. A fixed frame is provided on the ground. The middle position of the positioning frame 23 is rotatably connected to the fixed frame. The lower end of the positioning frame 23 cooperates with the left end of the trolley body 1. The upper end of the positioning frame 23 is provided with a second roller 24. The positioning frame 23 is provided with a motor 25 that drives the second roller 24 to rotate. When the rotating frame 11 pushes the steel plate to the left and moves it a short distance, the left end of the steel plate contacts the second roller 24, thereby realizing the positioning of the steel plate. The motor drives the second roller 24 to rotate, which cooperates with the first roller to transport the steel plate forward.

[0043] like Figure 7 As shown, two hydraulic cylinders 15 are arranged side by side. The cylinder body of the hydraulic cylinder 15 is fixed inside the housing 12, and the piston rod of the hydraulic cylinder 15 is connected to the first connecting plate 13 by a pin. The pressure of the hydraulic cylinder rod is adjusted by the pressure valve of the hydraulic system. Four holes are provided on the housing 12 for the inlet and outlet oil pipes of the hydraulic cylinder to pass through.

[0044] The lower end of the trolley body 1 is provided with a groove that cooperates with the chain 4 to prevent interference between the chain 4 and the trolley body 1.

[0045] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A steel plate cooling bed loading trolley, comprising a trolley body (1) and a chain (4) for driving the trolley body (1) to move, characterized in that, It also includes a lifting plate (2) set above the trolley body (1) and raised and lowered on the trolley body (1). The lifting plate (2) has four corners with teeth (3) for moving the steel plate. The teeth (3) swing on the lifting plate (2). It also includes a guiding mechanism for guiding the movement trajectory of the lifting plate (2) and a pushing mechanism for pushing the steel plate to the left. A buffer mechanism is provided between the end of the chain (4) and the trolley body (1). The tooth (3) is a right-angled triangular plate. The lifting plate (2) is provided with a support rod (5). The position of the tooth (3) is rotatably connected to the upper end of the support rod (5). The lifting plate (2) is provided with a limiting head (6) that cooperates with the bottom of the tooth (3). A first tension spring (7) is provided between the tooth (3) and the lifting plate (2). The guiding mechanism includes guide wheels (8) symmetrically arranged at both ends of the lifting plate (2) and guide plates (9) symmetrically arranged on both sides of the trolley body (1). The guide plate (9) is provided with guide holes (10) that cooperate with the guide wheels (8). The guide hole (10) includes a horizontal part in the middle and arc-shaped parts arranged at both ends of the horizontal part. The arc-shaped parts are bent downward. The pushing mechanism includes a rotating frame (11) located at the right end of the trolley body (1). The rotating frame (11) is composed of V-shaped frames symmetrically arranged on both sides of the trolley body (1). The corner of the rotating frame (11) is rotatably connected to the trolley body (1). The left end of the rotating frame (11) is engaged with the bottom of the lifting plate (2), and the right end of the rotating frame (11) is engaged with the steel plate. The buffer mechanism includes a housing (12) and a first connecting plate (13) and a second connecting plate (14) respectively disposed at both ends of the housing (12). A hydraulic cylinder (15) is provided inside the housing (12). The piston rod end of the hydraulic cylinder (15) extends out of the housing (12) and is connected to the first connecting plate (13). The lower end of the housing (12) is fixedly connected to the second connecting plate (14). The second connecting plate (14) is fixed on the trolley body (1). The first connecting plate (13) is connected to the chain.

2. The steel plate cooling bed loading trolley as described in claim 1, characterized in that, The lower end of the lifting plate (2) is provided with a guide rod (16), which passes through the trolley body (1) and is slidably connected to the trolley body (1).

3. The steel plate cooling bed loading trolley as described in claim 1, characterized in that, The left end of the symmetrical V-shaped frame is connected by the first link (17), which is located below the lifting plate (2).

4. The steel plate cooling bed loading trolley as described in claim 1, characterized in that, The right end of the V-shaped frame is connected by a second connecting rod (18), and the right end of the trolley body (1) is provided with a mounting plate (19). The second connecting rod (18) and the mounting plate (19) are connected by a second tension spring (20).

5. The steel plate cooling bed loading trolley as described in claim 1, characterized in that, The rotating frame (11) is provided with a pusher (21) at the right end, and a first roller (22) that cooperates with the steel plate is provided at the left end of the pusher (21).

6. The steel plate cooling bed loading trolley as described in claim 1, characterized in that, It also includes a positioning frame (23) that works with the rotating frame (11) to position the steel plate. A fixed frame is provided on the ground. The middle position of the positioning frame (23) is rotatably connected to the fixed frame. The lower end of the positioning frame (23) works with the left end of the trolley body (1). A second roller (24) is provided on the upper end of the positioning frame (23). A motor (25) is provided on the positioning frame (23) to drive the second roller (24) to rotate.

7. The steel plate cooling bed loading trolley as described in claim 1, characterized in that, Two hydraulic cylinders (15) are arranged side by side. The cylinder body of the hydraulic cylinder (15) is fixed inside the housing (12), and the piston rod of the hydraulic cylinder (15) is connected to the first connecting plate (13) by a pin.

8. The steel plate cooling bed loading trolley as described in claim 1, characterized in that, The lower end of the trolley body (1) is provided with a groove that cooperates with the chain (4).

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