Roadway coal cleaning machine for mines

Abstract

The utility model discloses a kind of mine laneway coal cleaning machine, comprising: chassis;Equipment cabin, install in rear portion of chassis;Shovel assembly, install in front portion of chassis by slewing assembly;Driving assembly, install on chassis, to drive the operation of chassis and shovel assembly;And vehicle-mounted wireless control module, install in equipment cabin;And wireless remote control module, with the vehicle-mounted wireless control module adaptation, to remotely control driving assembly. According to the mine laneway coal cleaning machine of the utility model is suitable for floating coal cleaning operation in laneway.

Description

Technical Field

[0001] This utility model relates to a coal cleaning machine for cleaning up loose coal, lump coal, silt or garbage in roadways. Background Technology

[0002] For example, loose coal cleaning is an important part of the coal mine production process, aimed at ensuring the safe and efficient operation of the mine. Loose coal, which is loose coal dust generated during coal mining, can threaten mine production and safety if not cleaned in time. Currently, the main methods for cleaning loose coal include manual cleaning, flushing cleaning, and high-pressure air cleaning.

[0003] Manual cleaning (see the "Matilda Floating Coal Cleaning Standard Operating Procedure") is the traditional method, requiring workers to use shovels to continuously scoop up floating coal and feed it onto the conveyor belt from the space on both sides. Because the space on both sides of the conveyor belt is very confined, the dust content is high, and the working environment for workers is relatively harsh. Furthermore, since the area where floating coal is generated is relatively large, a large number of personnel are usually required for cleaning, which is not only time-consuming and labor-intensive, but also, as mentioned earlier, workers can only work in the narrow space between the conveyor belt and the roadway wall, making them highly susceptible to collisions and injuries. Therefore, according to the "Matilda Floating Coal Cleaning Standard Operating Procedure," manual cleaning of floating coal often requires the machine to be stopped to avoid injuries, but at the same time, it also requires that the conveyor belt be free of coal, severely impacting the progress of coal mining operations.

[0004] Flushing and cleaning is a method of washing away floating coal by spraying and pumping water. This method is fast and effective in cleaning floating coal, but it requires a lot of water resources and may also pollute the groundwater environment.

[0005] High-pressure air cleaning uses high-pressure air to blow away loose coal. This method is also fast and efficient, but it requires specialized high-pressure air equipment, which is costly. In particular, how to collect the loose coal carried by the high-pressure air has always been a difficult technical problem to solve.

[0006] In addition, the latter two methods are only effective for cleaning loose coal. However, it should be noted that the area between the conveyor belt and the roadway not only contains accumulated loose coal, but also loose coal pieces, and may also produce silt or other garbage. These materials are difficult to clean using high-pressure air or washing.

[0007] It should be understood that the accumulation of loose coal not only affects mining and transportation efficiency but may also impact the environmental quality underground, thereby affecting worker health and mine safety. Therefore, timely removal of loose coal is crucial for ensuring safe production and efficient operation of coal mines. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a mine roadway coal cleaning machine suitable for cleaning floating coal in roadways.

[0009] According to an embodiment of this utility model, a coal cleaning machine for mine roadways is provided, comprising:

[0010] Chassis;

[0011] The equipment compartment is installed in the middle and rear of the chassis;

[0012] The bucket assembly is mounted at the front of the chassis via the slewing assembly;

[0013] The drive assembly, mounted on the chassis, drives the operation of the chassis and bucket assembly; and

[0014] The vehicle-mounted wireless control module is installed in the equipment compartment; and

[0015] A wireless remote control module is adapted to the vehicle-mounted wireless control module to remotely control the drive assembly.

[0016] Optionally, the chassis width shall not exceed 1200mm.

[0017] Optionally, the equipment compartment is fixedly mounted on the chassis.

[0018] Optionally, the equipment compartment has a front compartment and a rear compartment, wherein the front compartment is located in the middle of the chassis and the rear compartment is located at the rear of the chassis;

[0019] The rear compartment is the main compartment, which is used to install the main body of the drive assembly;

[0020] The forward compartment serves as a transition compartment, used for installing transmission components and pipelines.

[0021] Optionally, a constraint on the slewing assembly is provided on the chassis to limit the angular range of the slewing assembly relative to the front-rear direction of the chassis;

[0022] The rotation angle range is [-180°, 180°].

[0023] Optionally, the bucket assembly includes:

[0024] A boom, mounted on the slewing assembly, has a given height;

[0025] The bucket arm is mounted at one end to the upper end of the boom via a first horizontal axis;

[0026] The bucket is mounted on the other end of the bucket arm via a second horizontal axis; and

[0027] A swing mechanism, installed at the other end of the bucket arm, is used to drive the bucket to swing around a second horizontal axis.

[0028] Optionally, the bucket arm includes:

[0029] A longitudinal extension, one end of which is connected to the boom;

[0030] The lower extension is connected to the other end of the longitudinal extension and extends downward from the other end of the longitudinal extension. The end of the lower extension is used to connect with the bucket via the second horizontal axis.

[0031] Optionally, the longitudinal extension extends beyond the front end of the chassis;

[0032] The ratio of the downward extension of the lower part to the height of the bucket body is 0.8:1 to 1:1.

[0033] Optionally, the equipment compartment is equipped with distance measuring devices on both sides to avoid collisions with the tunnel wall or conveyor belt.

[0034] Optionally, the chassis is a tracked chassis.

[0035] This utility model provides a dedicated mine roadway coal cleaning machine, which includes a chassis, equipment compartment, bucket assembly, vehicle-mounted wireless control module, and a wireless remote control module adapted to the vehicle-mounted wireless control module, allowing for remote control by an operator. Unlike the method of personnel turning back and forth to shovel, for example, accumulated loose coal onto the conveyor belt, under remote control, the bucket assembly can scoop up, for example, loose coal accumulated between the conveyor belt and the roadway wall along the direction of the conveyor belt and then transfer it onto the conveyor belt. The mine roadway coal cleaning machine has a relatively simple operation and its work efficiency is far higher than that of workers. On the one hand, because the operator is far from the conveyor belt, accidents such as injuries are less likely. On the other hand, because the operation of the mine roadway coal cleaning machine is simple and relatively uniform, there is no need to worry about collisions with the conveyor belt. Therefore, there is no need to stop the machine to clean the roadway, and it has virtually no impact on coal mining operations. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the three-dimensional structure of a coal cleaning machine for mine roadways in one embodiment.

[0037] Figure 2 This is a schematic diagram of the main structure of a coal cleaning machine for mine roadways in one embodiment (rotating assembly rotated 90°).

[0038] In the diagram: 1. Bucket, 2. Bucket tilting cylinder, 3. Bucket boom, 4. Lifting cylinder, 5. Boom, 6. Shaft, 7. Front cabin, 8. Rear cabin, 9. Ventilation window, 10. Wireless remote control module, 11. Frame, 12. Traveling unit, 13. Slewing motor, 14. Slewing platform. Detailed Implementation

[0039] It should be known that conventional vehicles have definite front, back, left, and right directions. Generally, the chassis is used as a reference. The forward and backward directions of the chassis under normal conditions determine the front and back directions. The front and back directions are also called longitudinal or long-distance directions, and are also limited by the front and rear.

[0040] Correspondingly, the left and right directions are the two sides of the forward and backward directions, also known as the width direction or the lateral direction.

[0041] Correspondingly, the front, back, left, and right sides determine the reference plane. The direction perpendicular to the reference plane is called the up and down direction. However, in the mechanical field, when representing up and down, it is only used to indicate the existence of a height difference, not to indicate directly up or directly down.

[0042] In an embodiment of this utility model, the provided mine roadway coal cleaning machine includes a chassis, which includes, as follows: Figure 1 and Figure 2 The walking unit 12 and the frame 11 mounted on the walking unit 12 are shown.

[0043] Figure 1 and Figure 2 The image shows a tracked chassis. In some embodiments, a wheeled chassis may also be used. Relatively speaking, tracked chassis run smoothly, have good passability on uneven ground, are not prone to slipping, are easy to control to move forward or backward, and are more suitable for remote control.

[0044] Given the limited operating space of the mine roadway coal cleaning machine, mainly due to the narrow space between the conveyor and the roadway wall, it is difficult to deploy a conventionally sized chassis in this space. Therefore, a smaller chassis is adopted in the embodiments of this utility model. First, regarding the width of the chassis, it should not exceed 1200mm, and it is preferable to not exceed 1080mm.

[0045] Considering overall stability, the chassis can have a relatively large length-to-width ratio when the width is significantly limited. The length-to-width ratio can be above 2.5, with a ratio greater than 3.2 being preferred. In some embodiments, 3.47 is selected.

[0046] A relatively long chassis facilitates load configuration, and under no-load conditions, the middle and rear sections, especially the rear, are preferred to have relatively larger loads. Furthermore, the slewing assembly of the bucket assembly is located at the front of the chassis, so that when the bucket 1 of the bucket assembly is scooping material, the load at the front and rear of the chassis can be better balanced when the rear load is relatively large under no-load conditions.

[0047] Meanwhile, an independent slewing assembly is configured for the bucket assembly. In this case, the equipment compartment is fixedly mounted on the chassis, meaning its size does not affect the space occupied during operation. It should be noted that, for example, in excavators, both the equipment compartment and the digging arm are mounted on the slewing assembly. During operation, the equipment compartment rotates simultaneously, occupying a significant amount of space. However, in this embodiment, the equipment compartment is fixedly mounted on the chassis, and the slewing assembly is positioned at the front. During operation, the space occupied is primarily the range of motion of the bucket assembly, making it easier to control and reducing the risk of collisions and other accidents.

[0048] Furthermore, considering the overall dimensions, the bucket volume should not exceed 0.5m³. 3 Ideally, 0.3m 3 For better performance. For example, if the amount of loose coal or fallen coal chunks is not large, a small-capacity bucket is sufficient to meet the operational requirements.

[0049] The main equipment inside the equipment compartment is an explosion-proof diesel engine and a hydraulic power unit, which is as follows: Figure 1 The rotary motor 13 and lifting cylinder 4 shown in the diagram are supplied with hydraulic oil, while the explosion-proof diesel engine is used to drive the hydraulic pump of the hydraulic station. Generators, battery packs, etc. can also be installed in the equipment compartment to supply power to the equipment of the coal cleaning machine in the mine roadway.

[0050] The main equipment carried in the equipment compartment includes the aforementioned diesel engine, hydraulic station (including oil tank), generator, battery pack, etc. As mentioned earlier, the equipment compartment is offset towards the middle and rear, mainly to reasonably distribute the load on the chassis.

[0051] The chassis itself is primarily driven by the running gear 12. This can be achieved through electric drive, direct drive from an explosion-proof diesel engine, or hydraulic drive. Accordingly, when hydraulic drive is used, the chassis's drive wheels are fitted with hydraulic motors. Furthermore, the aforementioned rotary motor 13 can also be adapted to be a hydraulic motor. These hydraulically driven components can be connected to a hydraulic station within the equipment compartment via a hydraulic circuit.

[0052] If, for example, the chassis is electrically driven, then a corresponding wheel-side motor can be adapted, which is driven by the aforementioned battery pack.

[0053] Bucket assembly includes Figure 1 The diagram shows a bucket 1, a bucket cylinder 2, a bucket arm 3, a lifting cylinder 4, and a boom 5. The bucket arm 3 is mounted on the front of the chassis via a slewing assembly. The seat of the lifting cylinder 4 is hinged to the slewing assembly, and the push rod is hinged to the lower side of the bucket arm 3, forming a triangular mechanism for controlling the pitch of the bucket arm 3. Correspondingly, the slewing assembly also controls the rotation of the bucket arm 3.

[0054] The bucket cylinder 2 is installed at the end of the bucket arm 3. A swing cylinder can be selected to drive the bucket 1 to swing.

[0055] The bucket 1 is mounted at the end of the bucket arm 3 via a horizontal shaft. Therefore, its swinging motion can be seen in common bucket-equipped machines such as loaders, thereby enabling loading and unloading.

[0056] In the embodiments of this utility model, the operation of the mine roadway coal cleaning machine is controlled by remote control. Accordingly, a vehicle-mounted wireless control module needs to be installed on the mine roadway coal cleaning machine. It is generally installed in the equipment compartment, while a wireless remote control module 10 is installed in a relatively safe location such as the operator's room or the roadway. The wireless remote control module 10 is adapted to the vehicle-mounted wireless control module to remotely control the drive assembly.

[0057] It should be noted that the control of the coal cleaning machine in the mine roadway mainly involves forward and backward movement, as well as the control of the bucket 1. There are few control points, and the actions are routine. The wireless remote control module 10 issues commands based on the operator's operation, and the vehicle-mounted wireless control module located in the equipment compartment receives the commands and directly controls the corresponding drive assembly actions. It is mainly used for command forwarding and belongs to simple control, rather than intelligent control of electromechanical equipment.

[0058] Furthermore, to rationally arrange the load on the chassis, the equipment compartment has a front compartment 7 and a rear compartment 8. The rear compartment 8 is the installation compartment for the main equipment, while the front compartment 7 is mainly used for piping, wiring, or installing mechanical transmission components. Designing the front compartment 7 as a compartment, besides protecting components such as pipes, circuits, and mechanical transmission components, allows its shell to be designed integrally with the shell of the rear compartment 8, resulting in a better overall aesthetic. Thus, the rear compartment 8 is the main compartment, used to install the main body of the drive assembly, such as explosion-proof diesel engines, hydraulic stations, and other relatively heavy components. The front compartment 7, on the other hand, is an auxiliary compartment, used for wiring, piping, or the installation of related mechanical transmission components.

[0059] In contrast, the front cabin (Type 7) has some free space, emphasizing its decorative rather than functional aspects, thus presenting a... Figure 1 The state shown is that the front compartment 7 is mainly a closed compartment, while the rear compartment 8 needs to be adapted to the drive assembly and is equipped with a heat dissipation window 9, a refueling port, etc.

[0060] As mentioned above, since the mine roadway coal cleaning machine based on this utility model embodiment can operate without stopping the conveyor belt, collision accidents should be avoided as much as possible. Meanwhile, since the chassis mainly moves back and forth in the direction of the conveyor belt, the movement of the bucket assembly is prone to collision accidents. Therefore, in this utility model embodiment, a constraint on the slewing assembly is provided on the chassis to limit the angular range of the slewing assembly relative to the front and rear directions of the chassis; and the angular range is [-180°, 180°].

[0061] The aforementioned turning angle range can be understood as follows: Figure 1 The state shown is the initial state. The turning angle is based on this initial state. The turning angle range is that the maximum allowable turning angle for left turns is 180° and the maximum allowable turning angle for right turns is 180°.

[0062] When the overall range of motion of the coal cleaning machine in the mine roadway is determined, the operator can control it relatively precisely and is less likely to cause an accident.

[0063] Constraints include rigid constraints, such as baffles and blocks, and may also include soft limits, such as limit switches.

[0064] Furthermore, considering the limited working space, in this embodiment of the invention, the bucket arm 3 is... Figure 1 and Figure 2 The structure shown is roughly in the shape of a crank arm. For ease of description, it is divided into two parts: a longitudinal extension and a lower extension. The angle between the two parts is approximately 120°, with an optimal angle of 119°, thus presenting... Figure 2 As shown in the diagram, after the bucket arm 3 is lowered into place, the crank shape of the bucket arm 3 makes the bucket 1 relatively low and the overall center of gravity relatively low, which also facilitates the scooping of materials from the roadway floor.

[0065] Correspondingly, one end of the longitudinal extension is connected to the upper end of the boom 5 via a first horizontal axis, thus having a pitch degree of freedom. The lower extension is an integral structure with the longitudinal extension and is connected to the end of the longitudinal extension, extending downward. The end of the lower extension is used to connect to the bucket 1 via a second horizontal axis. The bucket 1 is fitted with the bucket cylinder 2 at the end of the lower extension to drive the bucket 1 to rotate.

[0066] Furthermore, the longitudinal extension extends beyond the front end of the chassis, allowing the lower extension to extend further downward, thus placing the bucket 1 in a more suitable position for pushing materials.

[0067] Furthermore, the ratio of the downward extension of the lower part to the height of the bucket body is 0.8:1 to 1:1. When the bucket 1 is in the lifting state, the height of its shovel teeth is usually not higher than, for example, the height of the front compartment 7. Under this condition, passability can be ensured.

[0068] Regarding the overall height, with the bucket 1 lowered, the overall height of the mine roadway coal cleaning machine should preferably not exceed 1.55m.

[0069] In addition, since the equipment compartment is fixed, cameras can be installed on the equipment compartment to transmit the on-site situation to a remote wireless remote control module, which will facilitate the operation and control by the operators.

[0070] As an auxiliary control measure, ranging devices are installed on both sides of the equipment compartment to avoid collisions with the tunnel walls or conveyor belts. Regarding collision control, active control is preferred because, in this embodiment of the invention, the mine roadway coal cleaning machine is mainly controlled remotely by the operator. Therefore, for example, ranging sensors can provide ranging warnings, allowing the operator to perform obstacle avoidance and other controls.

Claims

1. A coal cleaning machine for mine roadways, characterized in that, include: Chassis; The equipment compartment is installed in the middle and rear of the chassis; The bucket assembly is mounted at the front of the chassis via the slewing assembly; The drive assembly, mounted on the chassis, drives the operation of the chassis and bucket assembly; as well as The vehicle-mounted wireless control module is installed in the equipment compartment. as well as A wireless remote control module, adapted to the vehicle-mounted wireless control module, for remote control of the drive assembly; The bucket assembly includes: A boom, mounted on the slewing assembly, has a given height; The bucket arm is mounted at one end to the upper end of the boom via a first horizontal axis; The bucket is mounted on the other end of the bucket arm via a second horizontal axis; and A swing mechanism, installed at the other end of the bucket arm, is used to drive the bucket to swing around a second horizontal axis; The bucket arm includes: The longitudinal extension is connected at one end to the boom. The lower extension is connected to the other end of the longitudinal extension and extends downward from the other end of the longitudinal extension. The end of the lower extension is used to connect with the bucket via the second horizontal axis. The longitudinal extension extends beyond the front end of the chassis; The ratio of the downward extension of the lower part to the height of the bucket body is 0.8:1 to 1:

1.

2. The mine roadway coal cleaning machine according to claim 1, characterized in that, The chassis width is no more than 1200mm.

3. The mine roadway coal cleaning machine according to claim 1, characterized in that, The equipment compartment is fixedly mounted on the chassis.

4. The mine roadway coal cleaning machine according to claim 3, characterized in that, The equipment compartment has a front compartment and a rear compartment, with the front compartment located in the middle of the chassis and the rear compartment located at the rear of the chassis. The rear compartment is the main compartment, which is used to install the main body of the drive assembly; The forward compartment serves as a transition compartment, used for installing transmission components and pipelines.

5. The mine roadway coal cleaning machine according to claim 1, characterized in that, A constraint is provided on the chassis for the slewing assembly to limit the range of the slewing assembly's rotation angle relative to the chassis in the forward and backward directions; The rotation angle range is [-180°, 180°].

6. The mine roadway coal cleaning machine according to claim 1, characterized in that, The equipment compartment is equipped with distance measuring devices on both sides to avoid collisions with the tunnel walls or conveyor belts.

7. The mine roadway coal cleaning machine according to claim 1, characterized in that, The chassis is a tracked chassis.

Images