Underground ditch cleaning machine for coal mine

Abstract

The utility model discloses an underground ditch cleaning machine for a coal mine, which is suitable for cleaning and digging sludge in mine ditches and cleaning sludge in sedimentation tanks and ditches, and comprises a movable chassis, a hydraulic power system, a material collecting spiral group and a conveying spiral conveyor, the movable chassis is an installation platform of the whole machine and used for driving the whole machine to move in a roadway, the hydraulic power system provides a power source for the whole machine, the material collecting spiral set and the conveying spiral conveyor are installed at the front end of the movable chassis, the material collecting spiral set comprises at least one set of buckets and at least one set of material collecting spiral conveyor, and the buckets are used for clearing and digging sludge deposited in a ditch. The sludge is discharged into a feeding hopper of the aggregate screw conveyor; the material collecting screw conveyor is used for conveying sludge excavated by the excavator bucket to the conveying screw conveyor; and the conveying screw conveyor is used for conveying the sludge conveyed by the material collecting screw conveyor to a designated place. The ditch dredging, conveying and transferring integrated machine can achieve dredging, conveying and transferring integrated mechanical operation on sludge in ditches, is simple in structure and suitable for ditches of various depths, can be folded after work is completed, and is convenient to walk.

Description

Technical Field

[0001] The utility model relates to a dredging device, in particular to a ditch cleaner for underground coal mines, belonging to the field of dredging machinery. Background Art

[0002] With the continuous expansion of coal mine production scale and the extension of mine development, the length of the water ditches in the roadway will become longer and longer. The mine water discharged from each mining area and working face has to pass through the water ditches in the roadway and be discharged into the mining area sump or the central sump. There are many impurities such as coal slime in these coal slurries. The granular coal slime precipitates along the way, and the precipitated coal slime reduces the cross-sectional area of the water flow in the ditch, resulting in poor water flow. In the long run, the sewage will overflow from the ditch, affecting the normal operation of the drainage system. Therefore, the roadway water ditches need to be cleaned regularly and irregularly. At present, the cleaning of roadway water ditches mostly uses slurry pumps to pump the silt to a designated location. The slurry pump has a limited range of applicability to silt particles. Large particles are likely to damage the slurry pump, and dry silt cannot be directly pumped. Summary of the Invention

[0003] The purpose of the utility model is to provide a ditch cleaner for underground coal mines, which can well solve the above problems.

[0004] To achieve the above purpose, the utility model is implemented by the following technical solutions:

[0005] A ditch cleaner for underground coal mines includes a mobile chassis, a hydraulic power system, an aggregate screw group and a conveying screw conveyor;

[0006] The mobile chassis is the installation platform of the whole machine and is used to drive the whole machine to move in the roadway;

[0007] The hydraulic power system provides the power source for the whole machine;

[0008] The aggregate screw group and the conveying screw conveyor are installed at the front end of the mobile chassis. The aggregate screw group includes at least one set of buckets and an aggregate screw conveyor. The buckets are arranged at the end of the aggregate screw conveyor and are used to dig the silt deposited in the ditch and unload the silt into the feeding hopper of the aggregate screw conveyor; the aggregate screw conveyor is used to convey the silt dug by the buckets to the conveying screw conveyor, and the discharge port of the aggregate screw conveyor is docked with the feeding port of the conveying screw conveyor;

[0009] The conveying screw conveyor is used to convey the silt transported by the aggregate screw conveyor to a designated location.

[0010] Further, during operation, the aggregate screw group is arranged horizontally; after the work is completed, the aggregate screw group can be turned to the longitudinal arrangement state.

[0011] Further, the aggregate screw group and the conveying screw conveyor are installed on the front vehicle mounting frame, and the front vehicle mounting frame is supported at the front end of the mobile chassis by an oil cylinder.

[0012] Furthermore, the front vehicle mounting frame is a frame structure including a cross beam and two longitudinal beams. The two longitudinal beams are respectively lapped on the mobile chassis. One end of the oil cylinder is installed on the cross beam through a pin shaft, and the other end is installed on the front end of the mobile chassis through a pin shaft.

[0013] Furthermore, the conveying screw conveyor is installed on the two longitudinal beams of the front vehicle mounting frame through pin shafts; the aggregate screw group is rotatably installed on one longitudinal beam.

[0014] Furthermore, a pulling mechanism is arranged on the front vehicle mounting frame for pulling the aggregate screw group to rotate around one longitudinal beam.

[0015] Furthermore, the pulling mechanism includes a winch and a steel wire rope. The winch is installed on the front vehicle mounting frame. One end of the steel wire rope bypasses the winch, and the other end is fixed on the aggregate screw conveyor of the aggregate screw group.

[0016] Furthermore, it also includes a manual operation platform installed on the mobile chassis.

[0017] Due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0018] The structure is simple, the operation is convenient, and it is easy to maintain. It can realize the integrated mechanical operation of dredging, conveying, and transferring the silt in the water channel, and is applicable to water channels of various depths. Due to the adoption of the bucket structure and the screw conveyor, the dredging, transportation, and transfer of dry silt can also be realized. After the work is completed, the equipment can be retracted, which is convenient for walking and is more suitable for the environment with limited space underground. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present utility model.

[0020] Figure 2 is Figure 1 the top view of.

[0021] Figure 3 It is the retracted state diagram of the present utility model.

[0022] In the figure: 1. Mobile chassis; 2. Hydraulic power system; 3. Aggregate screw group; 301. Bucket; 302. Aggregate screw conveyor; 302-1. Feed hopper; 302-2. Discharge port of the aggregate screw conveyor; 4. Conveying screw conveyor; 401. Inlet of the conveying screw conveyor; 402. Discharge port of the conveying screw conveyor; 5. Front vehicle mounting frame; 501. Cross beam; 502. Longitudinal beam; 503. Mounting plate I; 504. Mounting plate II; 6. Oil cylinder; 7. Winch; 8. Manual operation platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments.

[0024] As Figure 1 , Figure 2 and Figure 3 shown, a ditch cleaning machine for underground coal mines includes a mobile chassis 1, a hydraulic power system 2, an aggregate screw group 3, and a conveying screw conveyor 4; the mobile chassis 1 is the installation platform for the whole machine, used to drive the whole machine to move in the roadway; the hydraulic power system 2 provides the power source for the whole machine.

[0025] The aggregate screw group 3 and the conveying screw conveyor 4 are installed at the front end of the mobile chassis 1. The aggregate screw group 3 includes at least one set of buckets 301 and an aggregate screw conveyor 302. The buckets 301 are arranged at the end of the aggregate screw conveyor 302, used to dig the silt deposited in the ditch and unload the silt into the feed hopper 302-1 of the aggregate screw conveyor 302; the discharge port 302-2 of the aggregate screw conveyor 302 is docked with the inlet 401 of the conveying screw conveyor 4. The aggregate screw conveyor 302 is used to convey the silt dug by the buckets 301 to the conveying screw conveyor 4; the conveying screw conveyor 4 is used to convey the silt transported by the aggregate screw conveyor 302 to a designated location.

[0026] During operation, the aggregate screw group 3 is arranged horizontally; after the work is completed, the aggregate screw group 3 can be flipped to the longitudinal arrangement state.

[0027] The aggregate screw group 3 and the conveying screw conveyor 4 are installed on the front vehicle mounting frame 5. The front vehicle mounting frame 5 is supported on the front end of the mobile chassis 1 by an oil cylinder 6. The front vehicle mounting frame 5 is a frame structure including a cross beam 501 and two longitudinal beams 502. The two longitudinal beams 502 are respectively lapped on the mobile chassis 1. One end of the oil cylinder 6 is installed on the cross beam 501 through a pin shaft, and the other end is installed on the front end of the mobile chassis 1 through a pin shaft.

[0028] The conveying screw conveyor 4 is installed on the two longitudinal beams 502 of the front vehicle mounting frame through pin shafts. The aggregate screw group is rotatably installed on one longitudinal beam 502. Specifically: there is an installation plate I 503 on one longitudinal beam 502, and an installation plate II 504 on the aggregate screw conveyor 302. During operation, the two horizontal holes of the installation plate I 503 and the two horizontal holes of the installation plate II 504 are respectively fixed through pin shafts. After the work is completed, when one pin shaft is removed and the aggregate screw group 3 is rotated to the longitudinal position, the two longitudinal holes of the installation plate I 503 and the two longitudinal holes of the installation plate II 504 are respectively fixed through pin shafts.

[0029] A pulling mechanism is provided on the front vehicle mounting bracket 5 for pulling the aggregate screw group 3 to rotate around a longitudinal beam. The pulling mechanism includes a winch 7 and a steel wire rope (not marked in the figure). The winch 7 is installed on the front vehicle mounting bracket 5. One end of the steel wire rope bypasses the winch 7, and the other end is fixed to the aggregate screw conveyor 302 of the aggregate screw group 3.

[0030] An artificial operation platform 8 is installed on the mobile chassis 1.

[0031] During operation, start the equipment, control the mobile chassis 1, and move the ditch cleaning machine of the present utility model to the working area. The digging bucket 301 digs out the silt in the ditch. When it rotates above the feeding hopper 302-1 of the aggregate screw conveyor 302, the silt automatically falls into the feeding hopper 302-1 of the aggregate screw conveyor 302 under the influence of gravity. The silt rotates through the screw shaft in the screw cylinder, and the silt is squeezed from the discharge port 302-2 of the aggregate screw conveyor 302 into the feeding port 401 of the conveying screw conveyor 4. The silt rotates through the screw shaft in the screw cylinder and is discharged from the discharge port 402 onto the ore truck and transported away by the ore truck.

[0032] After the work is completed, the telescopic rod of the oil cylinder 6 extends, pushing the front vehicle mounting bracket 5 forward, rotating the conveying screw conveyor 4, pulling out a pin shaft on the mounting plate I 503 and the mounting plate II 504, pulling the steel wire rope by the winch 7, and pulling the aggregate screw group 3 to rotate to the longitudinal state and fixing it with a pin shaft to reduce the width of the equipment, which is convenient for walking in the narrow space underground.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A coal mine underground ditch cleaning machine, characterized in that: It comprises a mobile chassis (1), a hydraulic power system (2), a material collecting screw group (3) and a conveying screw conveyor (4); The mobile chassis (1) is a mounting platform for the whole machine and is used to drive the whole machine to move in the lane; The hydraulic power system (2) provides a power source for the entire machine; The material-gathering screw group (3) and the conveying screw conveyor (4) are installed at the front end of the mobile chassis (1). The material-gathering screw group (3) comprises at least one group of buckets (301) and a material-gathering screw conveyor (302). The bucket (301) is arranged at the end of the material-gathering screw conveyor (302) and is used to dredge the silt deposited in the ditch and discharge the silt into the feed hopper (302-1) of the material-gathering screw conveyor (302). The material-gathering screw conveyor (302) is used to convey the silt dredged by the bucket (301) to the conveying screw conveyor (4). The discharge port (302-2) of the material-gathering screw conveyor (302) is connected to the feed port (401) of the conveying screw conveyor (4). The delivery screw conveyor (4) is used to transport the sludge transported by the aggregate screw conveyor (302) to a designated location.

2. The underground coal mine ditch cleaning machine according to claim 1, characterized in that: When working, the material collecting spiral group (3) is arranged horizontally; after the work is completed, the material collecting spiral group (3) can be turned over to a longitudinal arrangement state.

3. The underground coal mine ditch cleaning machine according to claim 1, characterized in that: The material collecting screw assembly (3) and the conveying screw conveyor (4) are mounted on a front mounting frame (5), and the front mounting frame (5) is supported on the front end of the mobile chassis (1) via an oil cylinder (6).

4. The coal mine underground ditch cleaning machine according to claim 3, characterized in that: The front mounting frame (5) is a frame structure including a crossbeam (501) and two longitudinal beams (502), the two longitudinal beams (502) being respectively overlapped on the mobile chassis (1), one end of the oil cylinder (6) being mounted on the crossbeam (501) via a pin shaft, and the other end being mounted on the front end of the mobile chassis (1) via a pin shaft.

5. The underground coal mine ditch cleaning machine according to claim 4, characterized in that: The conveying screw conveyor (4) is mounted on two longitudinal beams (502) of the vehicle front mounting frame (5) via a pin shaft; the material collecting screw group (3) is rotatably mounted on one longitudinal beam (502).

6. The underground coal mine ditch cleaning machine according to claim 5, characterized in that: The front mounting frame is provided with a pulling mechanism for pulling the material collecting screw assembly (3) to rotate around a longitudinal beam (502).

7. The underground coal mine ditch cleaning machine according to claim 6, characterized in that: The pulling mechanism comprises a winch (7) and a steel wire rope. The winch (7) is mounted on a front mounting frame (5) of the vehicle. One end of the steel wire rope passes around the winch (7), and the other end is fixed to a material collecting screw conveyor (302) of the material collecting screw assembly (3).

8. The underground coal mine ditch cleaning machine according to claim 1, characterized in that: It also includes a manual operating platform (8) installed on the mobile chassis (1).

Images