A bucket wheel excavator and coal mine transportation equipment

Abstract

This utility model discloses a bucket wheel excavator and coal mine transportation equipment, relating to the technical field of mining production equipment. The bucket wheel excavator includes: a coal chutes, which is a tubular structure arranged vertically; a cantilever belt, located below the coal chutes, used for transporting coal; two baffles, rotatably arranged on both sides of the cantilever belt; and a coal blocking plate, rotatably arranged on the side of the coal chutes away from the baffles. The bucket wheel excavator and coal mine transportation equipment provided in this application, through the arrangement of the baffles and coal blocking plates, can maximally prevent coal from spilling off the cantilever belt when falling from the coal chutes onto it.

Description

Technical Field

[0001] This utility model relates to the field of mining production equipment technology, and more specifically, to a bucket wheel excavator. Furthermore, this utility model also relates to a coal mine transportation device including the aforementioned bucket wheel excavator. Background Technology

[0002] Bucket wheel stacker-reclaimer is a large-scale mechanical equipment specifically designed for the continuous loading and unloading of bulk materials (such as coal, ore, sand and gravel).

[0003] A bucket wheel excavator consists of core components such as a bucket wheel (a rotating wheel with buckets), a conveyor arm (a belt conveyor), a drive system, a slewing mechanism, and a traveling mechanism. It excavates materials by rotating the bucket wheel and transports the materials to a designated location via a conveying system.

[0004] However, current bucket wheel excavators only have baffles on both sides of the lower part of the coal chute, without considering that material may also spill from the lower tail side of the chute. Especially when the cantilever conveyor belt is raised at a certain angle to pile up material, coal may spill from the tail side of the cantilever conveyor belt onto the rotary platform of the coal yard and through the fence to other locations, causing a lot of extra cleanup work in the coal yard. In special circumstances, when the amount of coal falling onto the cantilever conveyor belt is too large, the cantilever conveyor belt may reverse due to a malfunction, causing a large amount of coal to spill from the tail side of the cantilever conveyor belt.

[0005] In conclusion, how to prevent coal spillage is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a bucket wheel conveyor, which is equipped with a baffle plate and a coal blocking plate. The baffle plate can prevent coal from spilling from both sides of the cantilever belt, and the coal blocking plate can prevent coal from spilling from the tail of the cantilever belt.

[0007] Another objective of this invention is to provide a coal mine transportation device that includes the aforementioned bucket wheel excavator.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A bucket wheel excavator, comprising:

[0010] A coal chute is a tubular structure installed along a vertical direction.

[0011] A cantilever belt is installed below the coal chute, and the cantilever belt is used to transport coal.

[0012] Two baffles are provided, and the two baffles are rotatably disposed on both sides of the cantilever belt;

[0013] A coal blocking plate is rotatably disposed on the side of the coal drop pipe opposite to the baffle plate.

[0014] Preferably, it further includes a first hydraulic adjustment device, which includes a first hydraulic cylinder and connecting rods. There are two connecting rods, and the first ends of the two connecting rods are rotatably connected to the output end of the first hydraulic cylinder, and the second ends of the two connecting rods are rotatably connected to the baffle plate.

[0015] Preferably, the device further includes a frame and a hinge, wherein the baffle plate is rotatably connected to the frame via the hinge.

[0016] Preferably, the baffle plate is provided with a baffle plate falling trigger and a baffle plate lifting trigger, and the coal dropping pipe is provided with a first limit switch corresponding to the baffle plate falling trigger and the baffle plate lifting trigger.

[0017] Preferably, it further includes a second hydraulic adjustment device, which includes a second hydraulic cylinder and a crescent rod. The first end of the crescent rod is rotatably connected to the output end of the second hydraulic cylinder, and the second end of the crescent rod is fixedly connected to the rotating shaft of the coal blocking plate.

[0018] Preferably, the coal blocking plate is provided with a coal blocking plate falling trigger and a coal blocking plate lifting trigger, and the coal dropping pipe is provided with a second limit switch corresponding to the coal blocking plate falling trigger and the coal blocking plate lifting trigger.

[0019] Preferably, it further includes a control system, which is signal-connected to the first hydraulic cylinder and the second hydraulic cylinder.

[0020] Preferably, the baffle plate includes a flame-retardant layer, a rigid layer, and a contact layer.

[0021] Preferably, a dust-proof curtain is provided on the side of the lower end of the coal chute that is away from the coal blocking plate.

[0022] A coal mine transportation equipment includes a bucket wheel excavator, wherein the bucket wheel excavator is any one of the bucket wheel excavators described above.

[0023] This utility model provides a bucket wheel excavator with a cantilever belt installed below the coal chute. A baffle plate is installed on each side of the cantilever belt, and a coal blocking plate is installed on the side of the coal chute away from the baffle plate. The coal chute is a vertically arranged tubular structure. When transporting coal, coal is fed into the coal chute from the top and falls onto the cantilever belt from inside the coal chute. During the falling process, the baffle plates on both sides of the cantilever belt can prevent coal from spilling from both sides of the cantilever belt, and the coal blocking plate can prevent coal from spilling from the side of the cantilever belt away from the baffle plate. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a front view of the bucket wheel excavator provided by this utility model;

[0026] Figure 2 This is a schematic diagram of the bucket wheel excavator provided by this utility model;

[0027] Figure 3 This is a structural schematic diagram of the bucket wheel excavator provided by this utility model from another perspective.

[0028] Figure 4 This is a schematic diagram of the structure of the baffle plate provided by this utility model.

[0029] Figure label:

[0030] 1-Coal chute; 2-Cantilever belt conveyor; 3-Baffle plate; 4-Coal blocking plate; 5-First hydraulic adjustment device; 6-First hydraulic cylinder; 7-Connecting rod; 8-Frame; 9-Hinge; 10-Baffle plate lowering trigger; 11-Baffle plate lifting trigger; 12-Second hydraulic adjustment device; 13-Second hydraulic cylinder; 14-Crescent rod; 15-Coal blocking plate lowering trigger; 16-Coal blocking plate lifting trigger; 17-Dust curtain; 18-Flame retardant layer; 19-Hard layer; 20-Contact layer. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The core of this utility model is to provide a bucket wheel excavator, in which baffles are provided on both sides of the cantilever belt, and a coal blocking plate is provided on the side of the coal drop pipe away from the baffles, so as to prevent coal from spilling to the greatest extent.

[0033] Another core aspect of this utility model is to provide a coal mine transportation equipment that includes the aforementioned bucket wheel excavator.

[0034] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] The present application provides a bucket wheel excavator, comprising: a coal chute 1, a cantilever belt 2, a baffle plate 3, and a coal blocking plate 4;

[0036] Among them, the coal chute 1 is a tubular structure set along the vertical direction;

[0037] The cantilever belt 2 is located below the coal chute 1 and is used to transport coal.

[0038] Two baffle plates 3 are provided, and the two baffle plates 3 are rotatably arranged on both sides of the cantilever belt 2;

[0039] The coal blocking plate 4 is rotatably mounted on the side of the coal drop pipe 1 away from the baffle plate 3.

[0040] For details, please refer to the appendix. Figure 1 The coal chute 1 is installed vertically, but can be tilted appropriately depending on the actual situation. A cantilever belt 2 is installed directly below the coal chute 1. The cantilever belt 2 is divided into sections according to its running direction: the section in front of the material running in that direction is the head section, and the section behind is the tail section. The lower end of the coal chute 1 corresponds to the middle section of the cantilever belt 2. Two baffle plates 3 are provided, one at the head of the cantilever belt 2 and the other on either side. A coal blocking plate 4 is located at the tail of the cantilever belt 2. It should be noted that... Under normal conditions, both the baffle plate 3 and the coal blocking plate 4 are set vertically. When transporting coal, the upper end of the coal drop pipe 1 is the coal inlet. Coal enters the interior of the coal drop pipe 1 through the coal inlet and falls from the lower end of the coal drop pipe 1 onto the surface of the cantilever belt 2. When the amount of coal falling onto the surface of the cantilever belt 2 is too large, the cantilever belt 2 will reverse if it malfunctions. At this time, a large amount of coal will spill from the tail of the cantilever belt. The setting of the coal blocking plate 4 can block this part of the coal, prevent the coal from spilling, give the operator enough time to stop feeding coal into the coal drop pipe 1, and also handle the accumulated coal.

[0041] Based on the above embodiments, a first hydraulic adjustment device 5 is also included. The first hydraulic adjustment device 5 includes a first hydraulic cylinder 6 and a connecting rod 7. There are two connecting rods 7, and the first ends of the two connecting rods 7 are rotatably connected to the output end of the first hydraulic cylinder 6, and the second ends of the two connecting rods 7 are rotatably connected to the baffle plate 3.

[0042] For details, please refer to the appendix. Figure 1 The first hydraulic adjustment device 5 is connected to the baffle plate 3 and is used to adjust the position of the baffle plate 3. The first hydraulic adjustment device 5 includes a first hydraulic cylinder 6 and connecting rods 7. The first hydraulic cylinder 6 is mounted on the frame and is arranged vertically. The output end of the first hydraulic cylinder 6 is set downward. The two connecting rods 7 are connected to the output end of the first hydraulic cylinder 6 through a rotating shaft. The fixed end of the first hydraulic cylinder 6 is fixed on the frame. When the output end of the first hydraulic cylinder 6 moves downward, the two connecting rods 7 change from an inclined state to a horizontal state, so as to drive the baffle plate 3 to unfold away from the cantilever belt 2. When the output end of the first hydraulic cylinder 6 moves upward, the two connecting rods 7 change from a horizontal state to an inclined state. The two connecting rods 7 can drive the two baffle plates 3 to hug the cantilever belt 2, so that the baffle plate 3 can play a role in preventing coal from spilling.

[0043] Based on the above embodiment, it also includes a frame 8 and a hinge 9, and the baffle plate 3 is rotatably connected to the frame 8 through the hinge 9.

[0044] For details, please refer to the appendix. Figure 3 The baffle plate 3 is rotatably connected to the frame 8 via the hinge 9, so that the baffle plate 3 can be fixed on the frame 8. In addition, the rotating shaft of the baffle plate 3 is connected to the connecting rod 7, and the first hydraulic cylinder 6 drives the baffle plate 3 to rotate.

[0045] Based on the above embodiments, the baffle plate 3 is provided with a baffle plate falling trigger part 10 and a baffle plate lifting trigger part 11, and the coal falling pipe 1 is provided with a first limit switch corresponding to the baffle plate falling trigger part 10 and the baffle plate lifting trigger part 11.

[0046] For details, please refer to the appendix. Figure 2 With appendix Figure 3 The figure shows the baffle plate falling trigger 10 and the baffle plate lifting trigger 11 connected to the baffle plate 3. That is, after the baffle plate 3 is lifted or falls into place, the baffle plate falling trigger 10 and the baffle plate lifting trigger 11 will contact the first limit switches installed at two positions on the equipment housing respectively. The first limit switches are not shown in the figure.

[0047] Based on the above embodiments, a second hydraulic adjustment device 12 is also included. The second hydraulic adjustment device 12 includes a second hydraulic cylinder 13 and a crescent rod 14. The first end of the crescent rod 14 is rotatably connected to the output end of the second hydraulic cylinder 13, and the second end of the crescent rod 14 is fixedly connected to the rotating shaft of the coal blocking plate 4.

[0048] For details, please refer to the appendix. Figure 3The second hydraulic adjustment device 12 is located on the side of the coal drop pipe 1. The second hydraulic cylinder 13 is horizontally arranged. The fixed end of the second hydraulic cylinder 13 is fixed to the frame. The output end of the second hydraulic cylinder 13 is rotatably connected to the crescent rod 14. The other end of the crescent rod 14 is fixedly connected to the rotating shaft of the coal blocking plate 4. When the output end of the second hydraulic cylinder 13 extends, the crescent rod 14 rotates counterclockwise, thereby driving the coal blocking plate 4 to rotate counterclockwise, so that the coal blocking plate 4 opens. When the output end of the second hydraulic cylinder 13 retracts, the crescent rod 14 rotates clockwise, thereby driving the coal blocking plate 4 to rotate clockwise, blocking the tail of the cantilever belt 2 and preventing coal from spilling.

[0049] In conjunction with the function of the first hydraulic adjustment device 5, when the bucket wheel excavator of this application is working and piling material into the coal yard, the bucket wheel excavator's cantilever belt 2 carries the incoming coal to the coal yard. At this time, the two side baffles 3 below the bucket wheel excavator's coal drop pipe 1 and the coal blocking plate 4 at the tail of the cantilever belt 2 fall simultaneously. The baffles 3 prevent coal from spilling out to both sides of the cantilever belt 2 when it falls suddenly due to excessive weight. The coal blocking plate 4 prevents the suddenly falling coal or large pieces of debris from spilling backward, especially when the bucket wheel excavator's cantilever belt 2 is lifting to pile material.

[0050] like Figure 3 As shown, when the bucket wheel excavator is taking out material, the cantilever belt 2 of the bucket wheel excavator transports the coal stored in the coal yard to the raw coal bunker of the boiler. At this time, the two side baffles 3 below the coal drop pipe 1 of the bucket wheel excavator and the coal blocking plate 4 at the tail of the cantilever belt 2 are raised simultaneously, without affecting the normal material taking out of the bucket wheel excavator.

[0051] It should be noted that the connecting mechanism between the tail-end coal blocking plate 4 and the hydraulic push rod is not straight, but rather a crescent-shaped rod 14. The disadvantages of a straight rod are: 1. Mismatched movement trajectory; 2. Prone to generating harmful lateral forces, causing the hydraulic push rod to bend; 3. When the baffle is fully lowered or raised, the straight rod is prone to dead points, causing the push rod to jam. The advantages of the crescent-shaped rod 14 are: 1. The crescent-shaped rod 14 itself is a lever, which can increase torque and provide a longer lever arm, thereby amplifying the output force of the hydraulic cylinder; 2. Optimizes spatial layout and force transmission path, saving space; 3. Eliminates dead points, provides effective rotational torque, and makes the baffle's start and stop actions smoother.

[0052] Based on the above embodiment, the coal blocking plate 4 is provided with a coal blocking plate falling trigger part 15 and a coal blocking plate lifting trigger part 16, and the coal dropping pipe 1 is provided with a second limit switch corresponding to the coal blocking plate falling trigger part 15 and the coal blocking plate lifting trigger part 16.

[0053] Specifically, the figure shows the coal blocking plate falling trigger part 15 and the coal blocking plate lifting trigger part 16 connected to the coal blocking plate 4. In this application, the coal blocking plate falling trigger part 15 and the coal blocking plate lifting trigger part 16 have the same structure. That is, after the coal blocking plate 4 is lifted or lowered into place, the coal blocking plate falling trigger part 15 and the coal blocking plate lifting trigger part 16 will contact the second limit switches installed at two positions on the equipment housing respectively. The second limit switches are not shown in the figure.

[0054] Based on the above embodiments, a control system is also included, which is signal-connected to the first hydraulic cylinder 6 and the second hydraulic cylinder 13.

[0055] Specifically, the push rods of baffle plate 3 and coal blocking plate 4 are hydraulically driven, offering stable performance, fast response, and long service life. They are more suitable for harsh environments with high coal dust levels and can also accommodate local electrical operation buttons (operation can be performed both locally and in the cab).

[0056] Based on the above embodiments, the baffle plate 3 includes a flame-retardant layer 18, a rigid layer 19, and a contact layer 20.

[0057] Specifically, the baffle plate 3 is composed of three layers. The inner layer (flame retardant layer 18) is made of PVC, which has the advantages of corrosion resistance, low cost and flame retardancy. The contact layer 20 is a regular baffle, which has a tight sealing effect, low cost and is easy to replace. The other layer is made of metal (hard layer 19), which has high corrosion resistance and long service life.

[0058] Based on the above embodiment, a dust curtain 17 is provided on the side of the lower end of the coal chute 1 away from the coal blocking plate 4.

[0059] Specifically, a rubber dust curtain 17 is installed at the lower end of the coal chute 1, or at the head of the cantilever conveyor belt 2, to prevent coal dust from falling from a height and to improve the cleanliness of the working environment.

[0060] In addition to the bucket wheel excavator mentioned above, this utility model also provides a coal mine transportation equipment including the bucket wheel excavator disclosed in the above embodiments. For the structure of other parts of the coal mine transportation equipment, please refer to the prior art, which will not be repeated here.

[0061] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0062] The present invention provides a detailed description of a bucket wheel excavator and coal mine transportation equipment. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A bucket wheel machine, characterized in that include: The coal chute (1) is a tubular structure set along the vertical direction; A cantilever belt (2) is located below the coal drop pipe (1) and is used to transport coal. Two baffle plates (3) are provided, and the two baffle plates (3) are rotatably provided on both sides of the cantilever belt (2); The coal blocking plate (4) is rotatably disposed on the side of the coal drop pipe (1) away from the baffle plate (3).

2. The bucket wheel machine according to claim 1, characterized in that It also includes a first hydraulic adjustment device (5), which includes a first hydraulic cylinder (6) and a connecting rod (7). There are two connecting rods (7), and the first ends of the two connecting rods (7) are rotatably connected to the output end of the first hydraulic cylinder (6), and the second ends of the two connecting rods (7) are rotatably connected to the baffle plate (3).

3. The bucket wheel machine according to claim 2, characterized in that It also includes a frame (8) and a hinge (9), wherein the baffle plate (3) is rotatably connected to the frame (8) via the hinge (9).

4. The bucket wheel machine according to claim 3, characterized in that The baffle plate (3) is provided with a baffle plate falling trigger part (10) and a baffle plate lifting trigger part (11), and the coal drop pipe (1) is provided with a first limit switch corresponding to the baffle plate falling trigger part (10) and the baffle plate lifting trigger part (11).

5. The bucket wheel machine according to claim 4, characterized in that It also includes a second hydraulic adjustment device (12), which includes a second hydraulic cylinder (13) and a crescent rod (14). The first end of the crescent rod (14) is rotatably connected to the output end of the second hydraulic cylinder (13), and the second end of the crescent rod (14) is fixedly connected to the rotating shaft of the coal blocking plate (4).

6. The bucket wheel machine according to claim 5, characterized by The coal blocking plate (4) is provided with a coal blocking plate falling trigger part (15) and a coal blocking plate lifting trigger part (16), and the coal dropping pipe (1) is provided with a second limit switch corresponding to the coal blocking plate falling trigger part (15) and the coal blocking plate lifting trigger part (16).

7. The bucket wheel excavator according to claim 6, characterized in that, It also includes a control system, which is signal-connected to the first hydraulic cylinder (6) and the second hydraulic cylinder (13).

8. The bucket wheel machine according to claim 1, characterized by The baffle plate (3) includes a flame-retardant layer (18), a rigid layer (19) and a contact layer (20).

9. The bucket wheel machine according to any one of claims 1 to 8, characterized in that A dust-proof curtain (17) is provided on the side of the lower end of the coal drop pipe (1) away from the coal blocking plate (4).

10. A coal mine haulage apparatus comprising a bucket wheel machine characterised in that, The bucket wheel excavator is the bucket wheel excavator as described in any one of claims 1 to 9.

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