A material lifting and discharging device

Abstract

The present invention discloses a material lifting and pouring device, which relates to the technical field of material lifting equipment. Specifically, it includes: a hopper, where there are points A, B, and C inside the hopper. Point C is at the center of gravity position of the hopper, and points A and B are respectively on both sides of the plane formed by point C and the Y-axis. For this material lifting and pouring device, by having a lever arm between the force application point of the hopper and its own center of gravity, the hopper can generate a flipping torque. And by arranging fixed guide wheels at an appropriate height to provide a torque that inhibits flipping for the hopper, as the hopper rises, the torque provided by the fixed guide wheels approaches zero, and the hopper can then flip, that is, the hopper can automatically flip at a predetermined position, and the hopper can move in the vertical direction. Therefore, it helps to reduce the overall space occupied by the equipment, and helps to simplify the equipment structure and facilitate maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of material lifting equipment, and more specifically, to a material lifting and dumping device. Background Art

[0002] In the fields of mechanical engineering, conveying equipment, and gravity utilization technology, the lifting and dumping of materials are common technological processes. Traditional material conveying methods mainly rely on electric motors and are realized through mechanical devices such as belts, chains, and hydraulic systems. However, these methods have problems such as high energy consumption, complex structures, and high maintenance costs.

[0003] In the existing technologies, there are some material conveying equipment that utilize the action of gravity, such as gravity belt conveyors, gravity roller conveyors, etc. These equipment mainly rely on the gravity of the materials themselves to drive and can achieve a certain degree of energy conservation.

[0004] The existing gravity material conveying equipment has the following problems when dealing with heavy materials: First, these equipment often require a large inclination angle, resulting in a large volume and occupying a large space, and are not suitable for occasions with limited space; second, in controlling the lifting and rotation of materials, the existing gravity material conveying equipment usually requires complex mechanical structures, which not only increases the complexity of the equipment but also raises the manufacturing cost and maintenance cost of the equipment.

[0005] In summary, how to solve the problems of large space occupation, complex structure, and difficult maintenance of gravity material conveying equipment is an urgent problem for those skilled in the art in the current field. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a material lifting and dumping device. By making there be a moment arm between the force application point and the center of gravity of the hopper, the hopper can generate a flipping torque, and by arranging fixed guide wheels at an appropriate height to provide a torque that inhibits flipping for the hopper. As the hopper rises, the torque provided by the fixed guide wheels approaches zero, and the hopper can then flip, that is, the hopper can automatically flip at a predetermined position, and the hopper can move in the vertical direction. Therefore, it helps to reduce the overall space occupation of the equipment and helps to simplify the equipment structure and facilitate maintenance.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A material lifting and dumping device, comprising:

[0009] A hopper, there are points A, B, and C inside the hopper, point C is at the center of gravity position of the hopper, and points A and B are respectively on both sides of the plane formed by point C and the Y-axis;

[0010] Lifting frame, the lifting frame is provided with a moving end M moving along the X-axis direction, and the moving end M is rotationally hinged with the point A along the Y-axis direction;

[0011] Support frame, the support frame is provided with a moving end N moving along the Z-axis direction, the moving end N is rotationally hinged with the point B along the Y-axis direction, and a driving mechanism for driving the lifting frame to move along the Z-axis direction is arranged inside the support frame;

[0012] Fixed guide wheel, which is rotatably installed relative to the support frame along the Y-axis, the fixed guide wheel is in rolling contact with the hopper, and the contact point is point D;

[0013] Wherein, when the hopper is in the low position, the vertical height of the point B is less than the vertical height of the point D, the X-axis, the Y-axis and the Z-axis are perpendicular to each other in pairs, and the Z-axis is in the vertical direction.

[0014] Preferably, when the hopper is in the low position, the vertical height of the point A is less than the vertical height of the point B.

[0015] Preferably, the horizontal distance between the point A and the point C is L1, and the horizontal distance between the point B and the point C is L2, and L1 is less than L2.

[0016] Preferably, the driving mechanism includes a sprocket, a main chain, a counterweight and a motor, the sprocket is rotatably installed at the high position of the support frame, the motor is used to drive the sprocket to rotate, the main chain bypasses the sprocket, and both ends are respectively fixedly connected to the lifting frame and the counterweight.

[0017] Preferably, the sprocket includes a first sprocket, a second sprocket and a third sprocket, the first sprocket and the second sprocket are coaxially rotatably installed, the axes of rotation of the second sprocket and the third sprocket are arranged in parallel, a fourth sprocket is arranged at the output shaft end of the motor, and a transmission chain is arranged between the fourth sprocket and the first sprocket;

[0018] The main chain bypasses the second sprocket and the third sprocket in sequence.

[0019] Preferably, a first Z-direction guide rail is arranged inside the support frame, and the counterweight is slidably installed on the first Z-direction guide rail;

[0020] The projection of the center point of the second sprocket and the connection point of the main chain on the lifting frame overlaps on the horizontal plane, and the projection of the center point of the third sprocket and the connection point of the main chain on the counterweight overlaps on the horizontal plane.

[0021] Preferably, the mobile end M is a third guide wheel, the third guide wheel is rotatably installed on the hopper along the Y-axis direction, and a double-layer X-direction guide rail is arranged in the lifting frame, and the third guide wheel is rollingly arranged in the double-layer X-direction guide rail;

[0022] The mobile end N is a fourth guide wheel, the fourth guide wheel is rotatably installed on the hopper along the Y-axis direction, and a double-layer fourth Z-direction guide rail is arranged in the support frame, and the fourth guide wheel is rollingly arranged in the double-layer fourth Z-direction guide rail.

[0023] Preferably, a guiding part is arranged in the lifting frame, a Z-direction rail is arranged in the support frame, and the guiding part and the Z-direction rail are relatively movably installed along the Z-axis direction.

[0024] Preferably, the guiding part includes at least two groups of first guide wheels and two groups of second guide wheels;

[0025] The first guide wheel is rotatably installed on the lifting frame along the Y-axis direction, and the rotation axes of the two groups of first guide wheels do not overlap;

[0026] The second guide wheel is rotatably installed on the lifting frame along the X-axis direction;

[0027] A second Z-direction guide rail and a third Z-direction guide rail are arranged in the support frame, the second Z-direction guide rail is a double-layer guide rail, the first guide wheel is rollingly arranged in the double-layer second Z-direction guide rail, the second guide wheel is rollingly installed on the third Z-direction guide rail, and the contact surfaces of the two groups of second guide wheels with the third Z-direction guide rail are not coplanar.

[0028] Preferably, a support rod adjustable in height along the Z-direction is arranged in the support frame, and the fixed guide wheel is arranged at the top end of the support rod.

[0029] The material lifting and pouring device provided by the present invention has at least the following beneficial effects compared with the prior art:

[0030] 1. By setting the mobile end M at point A, and installing the mobile end M and the lifting frame to move relative to each other along the X-axis. When the lifting frame rises, an upward pulling force can be generated on the hopper, and the acting point is point A. Point A and point B are on both sides of the vertical plane where the center of gravity C of the hopper is located. Therefore, the pulling force at point A will generate a torque that rotates around point B. At this time, the fixed guide wheel can support the hopper at point D, generating a torque that inhibits rotation around point B, which cancels out the torque generated by the pulling force at point A, thus ensuring that the hopper can move along the predetermined trajectory; because the pulling force at point A and the supporting force at point D both generate rotational torques, the direction of the acting force at point A is not restricted. It only needs to ensure that the center of gravity C is not in the direction of the acting force of the pulling force at point A. Therefore, after designing point A at the eccentric position of the hopper, the movement trajectory of the hopper can be designed as a vertical trajectory, thereby reducing the overall space occupation of the equipment.

[0031] 2. Since the hopper approaches point D gradually during the rising process, when the lever arm between point D and point B shrinks to the set value, the overturning torque of the supporting force at point D will be less than the overturning torque of the pulling force at point A, then the hopper will overturn around point B. Since the mobile end M can move along the X-axis, during the overturning process of the hopper, the lever arm between point A and point B changes continuously, and at the end of the overturning, the lever arm shows a gradually decreasing trend, thus ensuring the smoothness of the hopper overturning process; and by virtue of the displacement ability of the mobile end M in the X-axis direction, the hopper can obtain a larger overturning angle, so that the materials in the hopper can be fully dumped. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0033] Figure 1 It is a schematic structural diagram of the material lifting and dumping device provided by the present invention;

[0034] Figure 2 It is a front view of the material lifting and dumping device provided by the present invention;

[0035] Figure 3 It is a side view of the material lifting and dumping device provided by the present invention;

[0036] Figure 4 It is a distribution diagram of points A, B, C, and D on the hopper provided by the present invention;

[0037] Figure 5 It is a schematic diagram of the first stage of the hopper overturning provided by the present invention;

[0038] Figure 6 Schematic diagram of the second stage of the hopper flipping provided by the present invention;

[0039] Figure 7 Schematic diagram of the third stage of the hopper flipping provided by the present invention;

[0040] Figure 8 Schematic diagram of the fourth stage of the hopper flipping provided by the present invention.

[0041] In the figure:

[0042] 1. Support frame; 11. Motor; 12. First sprocket; 13. Second sprocket; 14. Third sprocket; 15. Counterweight; 16. First Z-direction guide rail; 17. Second Z-direction guide rail; 18. Third Z-direction guide rail; 19. Fourth Z-direction guide rail;

[0043] 2. Lifting frame; 21. First guide wheel; 22. Second guide wheel; 23. X-direction guide rail;

[0044] 3. Hopper; 31. Third guide wheel; 32. Fourth guide wheel;

[0045] 4. Main chain;

[0046] 51. Fixed guide wheel; 52. Support rod. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] The core of the present invention is to provide a material lifting and pouring device. By making there be a moment arm between the force application point of the hopper and its own center of gravity, the hopper can generate a flipping torque, and by arranging a fixed guide wheel at an appropriate height to provide a torque for suppressing flipping for the hopper. As the hopper rises, the torque provided by the fixed guide wheel approaches zero, and the hopper can flip, that is, the hopper can automatically flip at a predetermined position, and the hopper can move in the vertical direction. Therefore, it helps to reduce the overall space occupied by the device, and helps to simplify the device structure and facilitate maintenance.

[0049] Please refer to Figure 1 , Figure 2 and Figure 4 , a material lifting and pouring device, comprising:

[0050] The hopper 3 has points A, B, and C inside. Point C is at the center of gravity of the hopper 3. Points A and B are on opposite sides of the plane formed by point C and the Y-axis.

[0051] The lifting frame 2 is provided with a moving end M that moves along the X-axis. The moving end M is rotationally hinged to point A along the Y-axis.

[0052] The support frame 1 is provided with a moving end N that moves along the Z-axis. The moving end N is rotationally hinged to point B along the Y-axis. And a driving mechanism for driving the lifting frame 2 to move along the Z-axis is provided inside the support frame 1.

[0053] The fixed guide wheel 51 is rotatably installed relative to the support frame 1 along the Y-axis. The fixed guide wheel 51 is in rolling contact with the hopper 3, and the contact point is point D.

[0054] Among them, when the hopper 3 is in the low position, the vertical height of point B is less than the vertical height of point D. The X-axis, Y-axis, and Z-axis are perpendicular to each other in pairs, and the Z-axis is in the vertical direction.

[0055] As Figure 4 shown, both point A and point B on the hopper 3 are arranged deviating from the center of gravity C point of the hopper 3, and the projections of point A and point B on the X-axis are on both sides of the projection of point C on the X-axis. Therefore, when an upward pulling force F1 is generated at point A, point A generates a clockwise torsional torque on the hopper 3 around point B , and the gravity G of the center of gravity C point generates a counterclockwise torque on the hopper 3 around point B , and at the same time, the fixed guide wheel 51 is in rolling contact with the hopper 3, generating a supporting force F2 on the hopper 3 and generating a counterclockwise torque on the hopper 3 around point B , where is the lever arm length of F1 from point B, L2 is the lever arm length of G from point B, and L3 is the lever arm length of F2 from point B;

[0056] When , the hopper 3 does not rotate. As the hopper 3 rises, L3 continuously shrinks and F2 continuously increases, ensuring that the hopper 3 does not flip. During the rising process of the hopper 3, F1, G, L1, and L2 do not change. When the height of point B is the same as the height of point D, L3 shrinks to zero. Therefore, at this time, T3 = 0, , so the hopper 3 rotates clockwise in the order shown in Figure 5 , Figure 6 , Figure 7 and Figure 8 around point B, and the rotational torque doing work during the rotation process is , and during the rotation process, F1 and G do not change, while L1 and L2 gradually decrease at the end of the rotation, so that the hopper 3 can stop smoothly at the end of the rotation, ensuring the smoothness of the overall operation of the equipment.

[0057] Moreover Figure 1 、 Figure 2 and Figure 3 As shown, a lifting frame 2 capable of moving along the Z-axis is integrated in the support frame 1, and a mobile end M moving along the X-axis is arranged in the lifting frame 2. The mobile end M is hinged to the hopper 3 at point A. Therefore, it is satisfied that the acting point of F1 moves along the X-axis during the rising process of the hopper 3, meeting the requirement of the change in the length of the force arm of F1. And since the lifting frame 2 only needs to move along the Z-axis, the overall occupation of the equipment in the horizontal space can be reduced, which is helpful for the use in narrow spaces;

[0058] Moreover, the structures of the lifting frame 2, the hopper 3 and their connection positions are relatively simple, which is convenient for production and maintenance, and can reduce the use cost.

[0059] In some embodiments, when the hopper 3 is at a low position, the vertical height of point A is less than the vertical height of point B.

[0060] As Figure 4 shown, by making the initial height of point A lower than that of point B, when point A rotates around point B, the change in the length of the force arm L1 + L2 of F1 is first increasing and then decreasing, that is, the change trend of the torque T1 is first increasing and then decreasing. Therefore, the rotation speed of the hopper 3 during flipping is first increasing and then decreasing, which ensures the smooth start and stop of the flipping of the hopper 3, guarantees the smoothness of the operation of the overall equipment, and helps to reduce the working noise.

[0061] At the same time, by making the initial height of point A lower than that of point B, during the flipping process of the hopper 3, on the premise of flipping the same angle, the movement displacement of point A along the Z-axis can be reduced, thereby reducing the displacement amount of the mobile end M, reducing the work done by friction, reducing equipment wear, and improving the service life of the equipment.

[0062] In some embodiments, the horizontal distance between point A and point C is L1, and the horizontal distance between point B and point C is L2, and L1 is less than L2.

[0063] As Figure 4 shown, since the acting directions of both F1 and G are vertical directions, the force arm directions of both F1 and G are horizontal directions. Therefore is the length of the force arm of F1, and L2 is the length of the force arm of G;

[0064] As Figure 4 shown, when the hopper 3 does not rotate, the torque at point B needs to be balanced, that is , and after derivation, it is , so when other values remain unchanged, the smaller L1 is, the smaller F2 is. That is, the smaller the supporting force that the fixed guide wheel 51 needs to provide for the hopper 3, which means reducing the load-bearing of the fixed guide wheel 51 during the rising process of the hopper 3, thereby reducing the frictional resistance between the hopper 3 and the fixed guide wheel 51, further reducing the work done by the frictional resistance, reducing equipment wear, and extending the service life of the equipment.

[0065] In some embodiments, the driving mechanism includes a sprocket, a main chain 4, a counterweight 15, and a motor 11. The sprocket is rotatably installed at a high position of the support frame 1. The motor 11 is used to drive the sprocket to rotate. The main chain 4 bypasses the sprocket, and both ends are fixedly connected to the lifting frame 2 and the counterweight 15 respectively.

[0066] Such as Figure 1 , Figure 2 and Figure 3 As shown, by increasing the counterweight 15, the weight of the counterweight 15 is slightly less than the sum of the weights of the lifting frame 2 and the empty hopper 3, thereby balancing the acting forces at both ends of the main chain 4, further reducing the working load of the motor 11, and reducing the energy consumption of the equipment.

[0067] In some embodiments, a design is adopted in which the weight of the counterweight 15 is close to the sum of the weights of the lifting frame 2 and the hopper 3 loaded with half of the goods. When the hopper 3 rises fully loaded, the actual load of the motor 11 is only half of the weight of the goods in the hopper 3. And when the empty hopper 3 descends, the load of the motor 11 is also half of the weight of the goods when the hopper 3 is fully loaded. Therefore, the motor 11 can achieve a constant output, avoiding excessive load on the motor 11 and extending the service life of the motor 11.

[0068] In some embodiments, the sprocket includes a first sprocket 12, a second sprocket 13, and a third sprocket 14. The first sprocket 12 and the second sprocket 13 are coaxially rotatably installed. The axes of rotation of the second sprocket 13 and the third sprocket 14 are arranged in parallel. A fourth sprocket is provided at the output shaft end of the motor 11, and a transmission chain is provided between the fourth sprocket and the first sprocket 12;

[0069] The main chain 4 sequentially bypasses the second sprocket 13 and the third sprocket 14.

[0070] Adopting the structural design of sprockets and chains for power transmission can effectively prevent slippage between the main chain 4 and the sprockets, and effectively improve the power transmission efficiency.

[0071] In some embodiments, a first Z-direction guide rail 16 is provided inside the support frame 1, and the counterweight 15 is slidably installed on the first Z-direction guide rail 16;

[0072] The projection of the center point of the second sprocket 13 and the main chain connection point on the lifting frame 2 overlaps on the horizontal plane. The projection of the center point of the third sprocket 14 and the main chain connection point on the counterweight 15 and the main chain overlaps on the horizontal plane.

[0073] Such asFigure 2 As shown, a first Z-direction guide rail 16 is arranged in the support frame 1 to limit the movement track of the counterweight 15, and to define the connection positions of the second sprocket 13, the third sprocket 14 and the two end points of the main chain 4, so that the part between the second sprocket 13, the third sprocket 14 and the two end points of the main chain 4 can be close to the vertical state and can move along a specific track. During the process, the main chain 4 will not tilt, avoiding interference with other components.

[0074] In some embodiments, the mobile end M is the third guide wheel 31. The third guide wheel 31 is rotatably installed on the hopper 3 along the Y-axis direction, and a double-layer X-direction guide rail 23 is arranged in the lifting frame 2. The third guide wheel 31 is rollingly arranged in the double-layer X-direction guide rail 23;

[0075] The mobile end N is the fourth guide wheel 32. The fourth guide wheel 32 is rotatably installed on the hopper 3 along the Y-axis direction, and a double-layer fourth Z-direction guide rail 19 is arranged in the support frame 1. The fourth guide wheel 32 is rollingly arranged in the double-layer fourth Z-direction guide rail 19.

[0076] Using the guide wheel as the mobile end and using the double-layer guide rail as the guiding rail of the guide wheel can ensure that the guide wheel moves accurately along the predetermined track, and the rolling friction replaces the sliding friction, reducing the frictional force and thus reducing the equipment wear;

[0077] At the same time, during the rising process of the hopper 3, the direction of its movement track and the direction of the gravity of the goods are both in the vertical direction. Therefore, the influence of the gravity on the frictional force generated between the hopper 3 and the lifting frame 2 and their guiding rails is relatively small, which helps to reduce the loss of the equipment.

[0078] In some embodiments, a guiding part is arranged in the lifting frame 2, and a Z-direction rail is arranged in the support frame 1. The guiding part and the Z-direction rail are relatively movably installed along the Z-axis direction.

[0079] By arranging the guiding part and the Z-direction rail between the lifting frame 2 and the support frame 1, it is used to guide the movement track of the lifting frame 2 in the support frame 1 and ensure the stability of its movement.

[0080] In some embodiments, the guiding part includes at least two groups of first guide wheels 21 and two groups of second guide wheels 22;

[0081] The first guide wheel 21 is rotatably installed on the lifting frame 2 along the Y-axis direction, and the rotation axes of the two groups of first guide wheels 21 do not overlap;

[0082] The second guide wheel 22 is rotatably installed on the lifting frame 2 along the X-axis direction;

[0083] The support frame 1 is provided with a second Z-direction guide rail 17 and a third Z-direction guide rail 18. The second Z-direction guide rail 17 is a double-layer guide rail. The first guide wheel 21 is rotatably arranged in the double-layer second Z-direction guide rail 17. The second guide wheel 22 is rotatably installed with the third Z-direction guide rail 18, and the contact surfaces of the two groups of second guide wheels 22 and the third Z-direction guide rail 18 are not coplanar.

[0084] As Figure 1 , Figure 2 and Figure 3 shown, the first guide wheels 21 are arranged on both sides of the lifting frame 2 respectively, and there are at least two groups of first guide wheels 21 on each side. The two groups of guide wheels are simultaneously rotatably arranged in the double-layer second Z-direction guide rail 17, so that the lifting frame 2 can only move along the Z axis, and its movement along the X axis and flipping along the Y axis are restricted;

[0085] At the same time, the second guide wheels 22 are respectively arranged at the four corners or at least two diagonal corners of the lifting frame 2, and the second guide wheels 22 are in rolling contact with the third Z-direction guide rail 18. There are multiple contact surfaces between the multiple second guide wheels 22 and the third Z-direction guide rail 18, and at least two contact surfaces are not coplanar, thereby restricting the rotation of the lifting frame 2 around the Z axis and the X axis, so the movement stability of the lifting frame 2 is ensured.

[0086] In some embodiments, the support frame 1 is provided with a support rod 52 that is adjustable in height along the Z direction. The fixed guide wheel 51 is arranged at the top of the support rod 52.

[0087] As Figure 2 shown, the fixed guide wheel 51 is installed at the top of the support rod 52. When the vertical height of the fourth guide wheel 32 at point B is greater than or equal to the fixed guide wheel 51, the height of point B is greater than or equal to the height of point D. At this time, the hopper 3 flips. Therefore, by adjusting the installation height of the fixed guide wheel 51, that is, adjusting the height of point D, and further adjusting the flipping height of the hopper 3. Therefore, in practical applications, according to the height of the feeding port of the subsequent equipment, the height of the support rod 52 can be adjusted, that is, the height of the fixed guide wheel 51 can be adjusted, and the adjustment of the flipping height of the hopper 3 can be completed, so that the equipment is suitable for the on-site working requirements.

[0088] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0089] The above has introduced in detail the material lifting and pouring device provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A material lifting and discharging device, characterized in that, Comprising: A hopper (3) with points A, B, and C inside. Point C is at the center of gravity of the hopper (3), and points A and B are on opposite sides of the plane formed by point C and the Y-axis; A lifting frame (2) provided with a moving end M moving in the X-axis direction. The moving end M is rotationally hinged to point A in the Y-axis direction; A support frame (1) provided with a moving end N moving in the Z-axis direction. The moving end N is rotationally hinged to point B in the Y-axis direction, and a driving mechanism for driving the lifting frame (2) to move in the Z-axis direction is provided inside the support frame (1); A fixed guide wheel (51) rotatably installed relative to the support frame (1) in the Y-axis direction. The fixed guide wheel (51) is in rolling contact with the hopper (3), and the contact point is point D; Wherein, when the hopper (3) is in the low position, the vertical height of point B is less than the vertical height of point D. The X-axis, the Y-axis, and the Z-axis are perpendicular to each other in pairs, and the Z-axis is in the vertical direction.

2. The material lifting and pouring device according to claim 1, wherein When the hopper (3) is in the low position, the vertical height of point A is less than the vertical height of point B.

3. The material lifting and pouring device according to claim 1, wherein The horizontal distance between point A and point C is L1, and the horizontal distance between point B and point C is L2, and L1 is less than L2.

4. The material lifting and pouring device according to claim 1, characterized in that, The driving mechanism includes a sprocket, a main chain (4), a counterweight (15), and a motor (11). The sprocket is rotatably installed at the high position of the support frame (1). The motor (11) is used to drive the sprocket to rotate. The main chain (4) bypasses the sprocket and is fixedly connected to the lifting frame (2) and the counterweight (15) at both ends respectively.

5. The material lifting and pouring device according to claim 4, characterized in that, The sprocket includes a first sprocket (12), a second sprocket (13), and a third sprocket (14). The first sprocket (12) and the second sprocket (13) are coaxially rotatably installed. The axes of rotation of the second sprocket (13) and the third sprocket (14) are arranged in parallel. A fourth sprocket is provided at the output shaft end of the motor (11), and a transmission chain is provided between the fourth sprocket and the first sprocket (12); The main chain (4) bypasses the second sprocket (13) and the third sprocket (14) in sequence.

6. The material lifting and pouring device according to claim 5, characterized in that, A first Z-direction guide rail (16) is provided inside the support frame (1), and the counterweight (15) is slidably installed on the first Z-direction guide rail (16); The projection of the center point of the second sprocket (13) and the connection point of the main chain on the lifting frame (2) overlaps on the horizontal plane, and the projection of the center point of the third sprocket (14) and the connection point of the main chain on the counterweight (15) overlaps on the horizontal plane.

7. The material lifting and pouring device according to claim 1, wherein The moving end M is a third guide wheel (31). The third guide wheel (31) is rotationally installed with the hopper (3) in the Y-axis direction, and a double-layer X-direction guide rail (23) is provided inside the lifting frame (2). The third guide wheel (31) is rollingly arranged in the double-layer X-direction guide rail (23); The mobile end N is the fourth guide wheel (32), the fourth guide wheel (32) is rotatably installed with the hopper (3) along the Y-axis direction, and a double-layer fourth Z-direction guide rail (19) is arranged in the support frame (1), and the fourth guide wheel (32) is rollingly arranged in the double-layer fourth Z-direction guide rail (19).

8. The material lifting and pouring device according to claim 1, characterized in that, A guiding part is arranged in the lifting frame (2), a Z-direction rail is arranged in the support frame (1), and the guiding part and the Z-direction rail are relatively movably installed along the Z-axis direction.

9. The material lifting and pouring device according to claim 8, characterized in that The guiding part includes at least two groups of first guide wheels (21) and two groups of second guide wheels (22); The first guide wheel (21) is rotatably installed with the lifting frame (2) along the Y-axis direction, and the rotation axes of the two groups of first guide wheels (21) do not overlap; The second guide wheel (22) is rotatably installed with the lifting frame (2) along the X-axis direction; A second Z-direction guide rail (17) and a third Z-direction guide rail (18) are arranged in the support frame (1), the second Z-direction guide rail (17) is a double-layer guide rail, the first guide wheel (21) is rollingly arranged in the double-layer second Z-direction guide rail (17), the second guide wheel (22) is rollingly installed with the third Z-direction guide rail (18), and the contact surfaces of the two groups of second guide wheels (22) and the third Z-direction guide rail (18) are not coplanar.

10. The material lifting and pouring device according to any one of claims 1-9, characterized in that, A support rod (52) with adjustable height along the Z-direction is arranged in the support frame (1), and the fixed guide wheel (51) is arranged at the top end of the support rod (52).

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