Bottom discharge skip anti-spillage device for shaft mine hoisting system

Abstract

The utility model discloses a bottom unloading type skip bucket anti -spillage device for vertical shaft mine hoisting system, including fixed bolster, fender and floating plugging mechanism, fender sets up on the skip bucket, and the skip bucket includes the hopper box and the hopper bottom, and the hopper bottom is rotatably connected in the hopper box bottom through the hinged axle, and the fender is installed on the hopper bottom bottom surface through the fixed bolster and is close to the hinged axle one side, and the fender extends towards the direction away from the hopper bottom, the one end of fender away from the hopper bottom is curved to the direction of skip bucket discharge gate, and forms the bending section, and the fixed bolster is provided with angle adjusting part, and the inclination angle of fender relative to the hopper bottom can be adjusted through angle adjusting part, and the floating plugging mechanism is used for plugging the spillage gap of the hinged joint of hopper bottom and hopper box. The utility model discloses through the double protection design of fender and floating sealing mechanism, effectively solve the spillage problem of hopper bottom and hopper box hinged joint when skip bucket unloads the ore, avoid the skip bucket bottom ore stacking jam, the equipment damage in the shaft lining caused by the spillage.

Description

Technical Field

[0001] This utility model relates to the field of mine hoisting equipment technology, and in particular to a bottom-discharge skip anti-spilling device for a vertical shaft mine hoisting system. Background Technology

[0002] In ore mining and transfer operations in vertical shaft mines, bottom-discharge skips have become the core hoisting container connecting underground mining areas and surface beneficiation systems due to their advantages such as large single-load capacity, high unloading efficiency, and adaptability to the narrow space of vertical shafts. Their conventional working principle is as follows: After the skip is loaded with ore underground, it is pulled by a hoist along the shaft guide rail to the unloading position at the shaft entrance. Upon reaching the preset position, the skip box remains fixed, while the movable bottom of the skip, guided by the hoist's unloading track, rotates downwards relative to the skip box around its hinge axis. Under the action of gravity, the ore slides down the inner wall of the skip box and finally falls into the shaft entrance receiving hopper or subsequent conveying system, completing one ore hoisting and unloading cycle.

[0003] To ensure smooth and flexible tilting of the skip, existing skips have a basic fit gap at the hinge point between the skip bottom and the skip box. During unloading, when the movable skip bottom rotates downwards around the hinge axis to open, this basic fit gap further widens, forming a core channel for ore leakage. Therefore, during unloading, some ore or ore flows into this gap. Because the gap is away from the discharge port, the leaking ore cannot enter the normal unloading path and can only fall into the shaft or the bottom of the skip. This causes ore to accumulate in the hinge area at the bottom of the skip, easily getting stuck at the bottom of the skip and making cleaning difficult. In addition, some ore falls into the shaft, impacting guide rails, power cables, and other equipment, causing damage to components and resulting in high maintenance costs.

[0004] Therefore, there is an urgent need to design a material spillage prevention device that can effectively solve the problem of material leakage and spillage during the unloading of ore by existing bottom-discharge skips. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides a bottom-discharge skip anti-spilling device for vertical shaft mine hoisting systems. Through the dual protection design of the baffle plate and the floating sealing mechanism, it effectively solves the problem of material leakage at the hinge between the bottom of the skip and the bucket box during ore unloading in existing bottom-discharge skips. This avoids ore accumulation and jamming at the bottom of the skip and damage to equipment inside the shaft caused by material leakage. Furthermore, it has adjustable angle adaptability and low-frequency, easy-to-maintain operation, significantly improving the stability and economy of skip operation.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a bottom-discharge skip anti-spillage device for a vertical shaft mine hoisting system, including a fixed support, a baffle plate, and a floating sealing mechanism. The baffle plate is set on the skip, which includes a skip box and a skip bottom. The skip bottom is rotatably connected to the bottom of the skip box via a hinge shaft. The baffle plate is installed on the bottom surface of the skip bottom near the hinge shaft via the fixed support, and the baffle plate extends away from the skip bottom. The end of the baffle plate away from the skip bottom is bent towards the skip discharge port, forming a bent section. An angle adjustment component is provided on the fixed support, which can adjust the tilt angle of the baffle plate relative to the skip bottom. The floating sealing mechanism is used to seal the spillage gap at the hinge between the skip bottom and the skip box.

[0007] Furthermore, the fixed bracket includes a base plate and a connecting plate that are hinged together. The base plate is fixedly connected to the bottom of the hopper, and one end of the baffle plate is fixedly connected to the connecting plate. The angle adjustment component includes two adjusting plates that are hinged together and a locking pin. The two adjusting plates are fixedly connected to the base plate and the connecting plate, respectively. The two sides of the adjusting plate away from the hinged fixed bracket are integrally formed with arc-shaped plates. The hinge axis of the base plate and the connecting plate coincides with the center of the arc-shaped plate. The arc-shaped plate is provided with a plurality of adjustment holes, and the locking pin passes through the adjustment holes of the two adjusting plates.

[0008] Furthermore, the side wall of the baffle plate near the hinge shaft is fixed with several reinforcing ribs.

[0009] Furthermore, the bucket includes a front plate, a rear plate, and two side plates connected together. The floating sealing mechanism is disposed on the outer side wall of the rear plate. The floating sealing mechanism includes a sealing plate, a top plate, several springs, and guide rods. The top plate is fixed to the outer side wall of the rear plate. Several guide rods are fixed on the top plate and arranged along the length of the top plate. The sealing plate is located at the bottom of the top plate. A guide hole is opened on one side wall of the sealing plate for the guide rods to pass through. The sealing plate is slidably connected to the guide rods through the guide hole. The springs correspond one-to-one with the guide rods. The two ends of the springs abut against the sealing plate and the top plate, respectively. The bottom end of the sealing plate abuts against the top wall of the bucket bottom under the action of the springs.

[0010] Furthermore, an elastic sealing strip is attached and fixed to the bottom end of the sealing plate, and the sealing plate is pressed tightly against the top wall of the hopper bottom through the elastic sealing strip.

[0011] The beneficial effects of this utility model are: 1. The baffle plate of this utility model intercepts and guides spilled ore outside the shaft. Together with the floating sealing mechanism at the top, it achieves double protection of upper sealing and lower interception, effectively preventing the leakage of material from accumulating at the bottom of the skip or falling into the shaft, effectively extending the ore cleaning cycle and avoiding damage to the equipment at the bottom of the shaft.

[0012] 2. The angle adjustment component on the fixed bracket of this utility model can adjust the angle of the baffle plate relative to the bottom of the bucket without disassembling the core structure of the skip. The disassembly and assembly are convenient and can be adapted to the hoist track angle requirements of different mines.

[0013] 3. The reinforcing ribs on the side wall of the baffle plate of this utility model form a triangular support structure, which improves the structural strength and impact deformation resistance of the baffle plate and avoids the baffle plate from bending damage due to long-term impact. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the winnowing basket of this utility model.

[0015] Figure 2 This is a partial structural diagram illustrating the bottom structure of the winnowing basket of this utility model.

[0016] Figure 3 This is a side view of the bottom structure of the winnowing basket used in this utility model.

[0017] Figure 4 yes Figure 2 A magnified view of part A in the middle.

[0018] Figure 5 This is a schematic diagram illustrating the structure of the baffle plate in this utility model.

[0019] Figure 6 This is a schematic diagram illustrating the structure of the angle adjustment component of this utility model.

[0020] Figure 7 yes Figure 6 A magnified view of part B in the middle.

[0021] In the diagram: 1. Skip; 11. Skip box; 111. Front plate; 112. Rear plate; 12. Skip bottom; 121. Trapezoidal rib beam; 2. Fixed bracket; 21. Bottom plate; 22. Connecting plate; 3. Baffle plate; 31. Bending section; 4. Reinforcing rib plate; 5. Angle adjustment component; 51. Adjusting plate; 52. Arc plate; 521. Adjusting hole; 53. Locking pin; 6. Floating sealing mechanism; 61. Top plate; 62. Sealing plate; 621. Elastic sealing strip; 63. Guide rod; 64. Spring. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a bottom-discharge skip anti-spilling device for a vertical shaft mine hoisting system.

[0024] Reference Figures 1 to 3A bottom-discharge skip anti-spilling device for a vertical shaft mine hoisting system includes a fixed support 2, a baffle plate 3, and a floating sealing mechanism 6. The baffle plate 3 is installed on the skip 1, which includes a bucket box 11 and a bucket bottom 12. The bucket bottom 12 is rotatably connected to the bottom of the bucket box 11 via a hinge shaft. Two trapezoidal rib beams 121 are provided at the bottom of the bucket bottom 12. The baffle plate 3 is installed on the trapezoidal rib beams 121 near the hinge shaft of the bucket bottom 12 via the fixed support 2. The baffle plate 3 extends away from the bucket bottom 12. When the skip 1 unloads ore, the ore spilled from the connection gap falls onto the baffle plate 3 and is discharged along the baffle plate 3 to the outside of the shaft, preventing the spilled ore from accumulating at the bottom of the bucket bottom 12 or falling into the shaft. The end of the baffle plate 3 away from the bottom 12 is bent toward the discharge port of the skip 1, forming an arc-shaped bending section 31. This not only increases the structural strength of the baffle plate 3 but also prevents ore from accumulating on the baffle plate 3. To prevent the baffle plate 3 from bending and deforming due to long-term impact from ore, several reinforcing ribs 4 are welded and fixed to the side wall of the baffle plate 3 near the hinge axis.

[0025] The fixed bracket 2 provides stable support and angle adaptation capability for the baffle plate 3. It includes a hinged base plate 21 and a connecting plate 22. The base plate 21 is welded to or fixed to the trapezoidal rib beam 121 of the bucket bottom 12. One end of the baffle plate 3 is bolted to the connecting plate 22.

[0026] Reference Figures 5 to 7 To adapt to the unloading angle requirements of different mine skips 1, the fixed support 2 is also equipped with an angle adjustment component 5: the angle adjustment component 5 can adjust the tilt angle of the baffle plate 3 relative to the bottom 12 of the skip. The angle adjustment component 5 includes two adjusting plates 51 hinged to each other and a locking pin 53. The two adjusting plates 51 are fixedly connected to the bottom plate 21 and the connecting plate 22 respectively by bolts. The two sides of the adjusting plate 51 away from the hinged fixed support 2 are integrally formed with arc-shaped plates 52. The center of the arc plate 52 coincides with the hinge axis of the bottom plate 21 and the connecting plate 22. Several adjusting holes 521 are evenly opened on the arc plate 52 along the arc direction; the locking pin 53 is inserted into the corresponding adjusting hole 521 to lock the angle. This design does not require disassembling the existing skip 1 structure, facilitates angle adjustment, has good adaptability to bottom-discharge skips 1, avoids the cost waste of customizing the device when the mine changes the skip 1 model, and greatly improves versatility.

[0027] Reference Figures 2 to 4The bucket box 11 includes a front plate 111, a rear plate 112, and two side plates connected together. A floating sealing mechanism 6 is disposed on the outer side wall of the rear plate 112, thereby forming a double protection of upper sealing and lower interception. The floating sealing mechanism 6 includes a sealing plate 62, a top plate 61, several springs 64, and guide rods 63. The top plate 61 is welded and fixed to the outer side wall of the rear plate 112. Several guide rods 63 are fixed on the top plate 61 and arranged along the length of the top plate 61. The sealing plate 62 is located at the bottom of the top plate 61. A guide hole is opened on one side wall of the sealing plate 62 for the guide rods 63 to pass through. The sealing plate 62 is slidably connected to the guide rods 63 through the guide hole. The springs 64 correspond one-to-one with the guide rods 63. The two ends of the springs 64 abut against the sealing plate 62 and the top plate 61 respectively. The bottom end of the sealing plate 62 abuts against the top wall of the bucket bottom 12 under the action of the springs 64. The design adapts to the rotation of the hopper bottom 12: when the hopper bottom 12 opens, the sealing plate 62 slides upward along the guide rod 63, and the spring 64 compresses and maintains a stable sealing pressure; when the hopper bottom 12 closes, the spring 64 rebounds and pushes the sealing plate 62 back to its original position, ensuring that there is no leakage channel at the hinge gap throughout the process. To further improve the sealing effect, a nitrile rubber elastic sealing strip 621 is also attached and fixed to the bottom of the sealing plate 62, and the sealing plate 62 is pressed tightly against the top wall of the hopper bottom 12 through the elastic sealing strip 621.

[0028] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bottom-discharge skip anti-spilling device for a vertical shaft mine hoisting system, characterized in that: The device includes a fixed bracket (2), a baffle plate (3), and a floating sealing mechanism (6). The baffle plate (3) is set on the skip (1). The skip (1) includes a bucket box (11) and a bucket bottom (12). The bucket bottom (12) is rotatably connected to the bottom of the bucket box (11) through a hinge shaft. The baffle plate (3) is installed on the bottom surface of the bucket bottom (12) near the hinge shaft through the fixed bracket (2). The baffle plate (3) extends away from the bucket bottom (12). The end of the baffle plate (3) away from the bucket bottom (12) is bent towards the discharge port of the skip (1) to form a bent section (31). An angle adjustment component (5) is provided on the fixed bracket (2). The angle adjustment component (5) can adjust the tilt angle of the baffle plate (3) relative to the bucket bottom (12). The floating sealing mechanism (6) is used to seal the material spillage gap at the hinge between the bucket bottom (12) and the bucket box (11).

2. The bottom-discharge skip anti-spillage device for a vertical shaft mine hoisting system according to claim 1, characterized in that: The fixed bracket (2) includes a base plate (21) and a connecting plate (22) that are hinged together. The base plate (21) is fixedly connected to the bottom of the bucket (12). One end of the baffle plate (3) is fixedly connected to the connecting plate (22). The angle adjustment component (5) includes two adjustment plates (51) that are hinged together and a locking pin (53). The two adjustment plates (51) are fixedly connected to the base plate (21) and the connecting plate (22) respectively. The two sides of the adjustment plate (51) away from the hinged fixed bracket (2) are integrally formed with arc plates (52). The hinge axis of the base plate (21) and the connecting plate (22) coincides with the center of the arc plate (52). The arc plate (52) is provided with a plurality of adjustment holes (521). The locking pin (53) passes through the adjustment holes (521) of the two adjustment plates (51).

3. The bottom-discharge skip anti-spillage device for a vertical shaft mine hoisting system according to claim 1, characterized in that: The baffle plate (3) has several reinforcing ribs (4) fixed on its side wall near the hinge shaft.

4. A bottom-discharge skip anti-spillage device for a vertical shaft mine hoisting system according to any one of claims 1-3, characterized in that: The container (11) includes a front plate (111), a rear plate (112), and two side plates connected together. The floating sealing mechanism (6) is disposed on the outer side wall of the rear plate (112). The floating sealing mechanism (6) includes a sealing plate (62), a top plate (61), several springs (64), and guide rods (63). The top plate (61) is fixed to the outer side wall of the rear plate (112), and several guide rods (63) are fixed on the top plate (61) and arranged along the length of the top plate (61). The sealing plate (62) is located at the bottom of the top plate (61). A guide hole is provided on one side wall of the sealing plate (62) for the guide rod (63) to pass through. The sealing plate (62) is slidably connected to the guide rod (63) through the guide hole. The spring (64) corresponds to the guide rod (63) one by one. The two ends of the spring (64) abut against the sealing plate (62) and the top plate (61) respectively. The bottom end of the sealing plate (62) abuts against the top wall of the bottom of the bucket (12) under the action of the spring (64).

5. A bottom-discharge skip anti-spillage device for a vertical shaft mine hoisting system according to claim 4, characterized in that: An elastic sealing strip (621) is attached and fixed to the bottom end of the sealing plate (62), and the sealing plate (62) is pressed against the top wall of the bottom of the bucket (12) by the elastic sealing strip (621).

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