CN214499036U

CN214499036U - Multi-stage rocker arm multi-cutting drum coal mining machine

Info

Publication number: CN214499036U
Application number: CN202120243825.1U
Authority: CN
Inventors: 高九华; 高嘉憶
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-10-26
Anticipated expiration: 2031-01-28

Abstract

The utility model provides a many cutting drum coal-winning machines of multistage rocking arm, include: the device comprises a rack, wherein two ends of the rack are provided with primary rocker arms; further comprising: the two ends of the second-stage rocker arm are working ends, and the cutting drum is assembled on the working ends. By adopting the structure of the secondary rocker arm and the multiple cutting drums, the diameter size of the single-side cutting drum and the length of the rocker arm can be reduced, the weight of the components is reduced, and the stability of the whole equipment is improved; the structure of the coal mining machine can better realize and meet the requirement of larger coal mining height; by adopting a multi-cutting-drum structure, the size of each cutting drum is smaller, the impact area to coal rocks is small, the impact damage to coal in the coal cutting process is reduced, the stability of the coal is kept, the collapse accident is reduced, the coal mining safety is improved, and the optimal coal charging effect is realized.

Description

Multi-stage rocker arm multi-cutting drum coal mining machine

Technical Field

The utility model belongs to the technical field of coal mining mechanical equipment, especially, relate to a many cutting drum coal-winning machines of multistage rocking arm.

Background

As shown in fig. 1 to 3, a conventional coal mining machine is composed of a main frame 1A, a traveling device 2A, a slipper 3A, a rocker arm swing cylinder 4A, a rocker arm 5A, a roller 6A, a control system 7A, and the like, wherein the roller 6A is installed at the tail end of the rocker arm 5A, and the rocker arm swing cylinder 4A drives the rocker arm 5A to swing, thereby adjusting the position of the roller 6A.

In the use process, the rocker arms 5A at the two ends of the main frame 1A are driven by the rocker arm swing oil cylinders 4A to swing so as to adjust the angle of the rocker arms, the heights of the rollers 6A on the two sides of the main frame 1A are adjusted, the two rollers 6A are in a high-low state, the walking device 2A drives the main frame 1A to move transversely, meanwhile, the two rollers 6A rotate, and the side faces of the rollers 6A cut coal. In the traditional coal mining machine, if only one end of the main frame 1A is aimed at, the height of the coal face of one roller 6A is the diameter of the roller 6A, and as the coal mining height of coal is increased, the length of the rocker arm 5A needs to be increased and the diameter of the roller 6A needs to be increased, so that the size and the weight of the rocker arm 5A and the roller 6A of the coal mining machine are increased, the operation of replacing parts is complicated, coal mining machines with various specifications need to be equipped, and the stability of the coal mining machine is poor. In addition, due to the fact that the mining height is increased, the drum 6A is relatively enlarged, coal cutting at one time is increased, coal collapse is easily caused, safety accidents are caused, and inconvenience is brought to construction.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a many cutting drum coal-winning machines of multistage rocking arm. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

The utility model adopts the following technical scheme:

in some alternative embodiments, there is provided a multi-level ranging arm multi-cutting drum shearer comprising: the frame, the both ends of frame all are provided with the one-level rocking arm, still include: the two ends of the second-stage rocker arm are working ends, and the cutting drum is assembled on the working ends; the two-stage oil cylinder drives the two ends of the two-stage rocker arm to swing, so that the height of the coal mining working face covered by the two cutting drums is adjustable.

In some optional embodiments, the multi-level ranging arm multi-cutting drum shearer further comprises: a primary oil cylinder; one end of the primary oil cylinder is hinged to the rack, the other end of the primary oil cylinder is hinged to the primary rocker arm, and the primary oil cylinder stretches and retracts to drive the primary rocker arm to swing.

In some optional embodiments, the multi-level ranging arm multi-cutting drum shearer further comprises: a planetary reducer; the two cutting drums are respectively assembled at two ends of the secondary rocker arm through the planetary speed reducer.

In some optional embodiments, the multi-level ranging arm multi-cutting drum shearer further comprises: a cutting motor and a gear transmission mechanism; the cutting motor drives the gear transmission mechanism to drive the planetary speed reducer to rotate.

In some optional embodiments, the multi-level ranging arm multi-cutting drum shearer further comprises: a traveling part and a supporting shoe; the walking part includes: the traction motor drives the walking wheels to walk on the scraper conveyor.

The utility model discloses the beneficial effect who brings:

1. the structure of the secondary rocker arm and the multiple cutting drums is adopted, and two working ends are formed by swinging two ends of the secondary rocker arm, so that the diameter size of the single-side cutting drum and the length of the rocker arm can be reduced, the weight of parts is reduced, and the stability of the whole equipment is improved;

2. the structure of the coal mining machine can better realize and meet the requirement of larger coal mining height, and the positions of the cutting drums on the two working ends are adjusted by adjusting the angle of the secondary rocker arm so as to realize the adjustment of the height of the coal mining working face;

3. the multi-cutting-drum structure is adopted to replace a single drum, the size of each cutting drum is small, the impact area on coal rocks is small, the impact damage to coal in the coal cutting process is reduced, the stability of the coal is kept, the collapse accident is reduced, and the coal mining safety is improved;

4. the coal charging device adopts a structure of the secondary rocker arm and a plurality of cutting rollers, and two working ends are formed by swinging two ends of the secondary rocker arm, so that coal charging from a low position to two cutting rollers is realized, and the coal charging effect is good.

Drawings

Fig. 1 is a schematic structural view of a front surface of a conventional coal mining machine;

FIG. 2 is a schematic top view of a conventional shearer;

FIG. 3 is a view from the B-B direction of FIG. 1;

FIG. 4 is a schematic front view of the multi-level rocker arm multi-cutting drum shearer of the present invention;

FIG. 5 is a schematic top view of the multi-level rocker arm multi-cutting drum shearer of the present invention;

FIG. 6 is a view from the C-C of FIG. 4;

FIG. 7 is a schematic view of the front structure of the first rocker arm of the multi-level rocker arm multi-cutting shearer of the present invention;

FIG. 8 is a schematic view of the front structure of the secondary rocker arm of the multi-level rocker arm multi-cutting shearer of the present invention;

FIG. 9 is a schematic top view of a secondary rocker arm of the multi-level rocker arm multi-cutting drum shearer of the present invention;

FIG. 10 is a schematic view of the front side of the machine frame of the multi-level rocker arm multi-cutting drum shearer of the present invention;

FIG. 11 is a schematic structural view of the front end of a hydraulic support associated with the multi-level rocker multi-cutting shearer of the present invention;

fig. 12 is a schematic layout of the multi-level rocker arm multi-cutting drum shearer of the present invention, the scraper conveyor, and the hydraulic support;

fig. 13 is a schematic diagram of the coal mining machine with multi-level rocker arms and multiple cutting drums of the present invention cutting coal.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others.

As shown in fig. 4-13, in some illustrative embodiments, there is provided a multi-level ranging arm multi-cutting drum shearer comprising: the device comprises a rack 1, a primary rocker arm 5, a primary oil cylinder 4, a secondary rocker arm 7, a secondary oil cylinder 6, a cutting drum 8, a comprehensive control system 9, a planetary reducer 14, a cutting motor 12, a gear transmission mechanism 13, a walking part 2 and a supporting skid shoe 3.

The two ends of the frame 1 are provided with primary rocker arms 5, and the secondary rocker arms 7 are hinged with the primary rocker arms 5, so that the secondary rocker arms 7 can swing at the tail ends of the primary rocker arms 5. The primary rocker arm 5 and the secondary rocker arm 7 are hinged together and are symmetrically arranged on the frame 1. Specifically, a hinge point 15 at the head end of the primary rocker arm 5 is hinged with a hinge point 21 at the left end of the rack 1, and a hinge point 16 at the tail end of the primary rocker arm 5 is hinged with a hinge point 19 on the body of the secondary rocker arm 7.

The two ends of the secondary rocker arm 7 are working ends, that is, the secondary rocker arm 7 is provided with two working ends, and each working end is provided with a cutting drum 8, so that two cutting drums 8 are respectively arranged at the two ends of the secondary rocker arm 7. The cutting drum 8 is assembled at the working end of the secondary rocker arm through a planetary reducer 14, and the planetary reducer 14 is an industrial product with wide application, can reduce the rotating speed of a motor and increase the output torque at the same time. The cutting motor 12 drives the gear transmission mechanism 13 to drive the planetary reducer 14 to rotate, so as to drive the cutting drum 8 to rotate, the gear transmission mechanism 13 is a device for transmitting motion and power by a gear pair, and is a mechanical transmission mode which is most widely applied in modern various devices, and the gear transmission mechanism has the advantages of more accurate transmission, high efficiency, compact structure, reliable work and long service life.

The planetary speed reducers 14 at the two ends of the secondary rocker arm 7 can be driven by 1 cutting motor in an integrated mode to operate, and under certain special conditions, the planetary speed reducers 14 at the two ends of the secondary rocker arm 7 can be driven by 2 cutting motors independently to operate.

One end of the primary oil cylinder 4 is hinged with the frame 1, the other end of the primary oil cylinder is hinged with the primary rocker arm 5, and the primary oil cylinder 4 stretches and retracts to drive the primary rocker arm 5 to swing. Specifically, the hinge point 22 of the cylinder on the frame 1 at one end of the primary cylinder 4 is hinged to each other, and the other end of the primary cylinder is hinged to the driving hinge point 18 on the primary rocker arm 5, so that the primary rocker arm 5 is driven to swing along the hinge point 21 at the left end of the frame 1 when the primary cylinder 4 stretches.

The two-stage oil cylinder 6 drives two ends of the two-stage rocker arm 7 to swing. One end of the secondary oil cylinder 6 is hinged with a middle hinge point 20 on the secondary rocker arm 7, and the other end is hinged with an oil cylinder fixing hinge point 17 on the primary rocker arm 5, so that when the secondary oil cylinder 6 stretches, the secondary rocker arm 7 can be driven to swing by taking a hinge point 16 at the tail end of the primary rocker arm 5 as a rotation point. The inclination angle of the secondary rocker arm 7 can be adjusted by the swing of the secondary rocker arm 7, and when the frame 1 drives the cutting drums to move transversely, the adjustment of the inclination angle of the secondary rocker arm 7 can realize the adjustment of the contact ratio of the cutting drums 8 at the two working ends, so that the height of the coal face covered by the two cutting drums can be adjusted, namely the inclination angle of the secondary rocker arm 7 is adjusted. The unilateral coal face height of coal-winning machine among the prior art is the diameter of single cylinder, can't adjust, rocking arm and cylinder can only be changed, and the utility model discloses the degree of overlap that the inclination of only needing adjustment second grade rocking arm 7 can adjust the cutting drum 8 of two work ends, has just also adjusted unilateral coal face height, and the adjustment mode is convenient, reliable, and the structure of coal-winning machine can be better realization and satisfy great coal face high needs, adopts many cutting drum structures to replace single cylinder moreover, and every cutting drum's size is less, and is little to the area of impact of coal petrography.

Walking part 2, support slipper 3 and set up in frame 1, and walking part 2 makes the utility model discloses a many cutting drum coal-winning machines of multistage rocking arm can follow scraper conveyor 23 and remove, supports slipper 3 and plays the supporting role, guarantees the utility model discloses a stability when many cutting drum coal-winning machines of multistage rocking arm remove. The traveling unit 2 includes: the traction motor 10 drives the traveling wheels 11 to travel on the scraper conveyor 23.

The working process is as follows: the utility model discloses a many cutting drum coal-winning machines of multistage rocking arm is coal mine coal face equipment, and it constitutes production system with scraper conveyor 23 and hydraulic support 33, wherein the utility model discloses a many cutting drum coal-winning machines of multistage rocking arm ride on scraper conveyor 23, and traction motor 10 on its walking portion 2 drives walking wheel 11 and walks on scraper conveyor 23, and interactive hinge point 31 on scraper conveyor 23 is together articulated with hydraulic support 33, and the flexible scraper conveyor 23 and the removal of hydraulic support 33 that realizes of the lapse hydro-cylinder 30 on the hydraulic support 33 each other is the fulcrum and removes.

For ease of understanding, the cutting drums 8 of the shearer in the operating state are organized into a first cutting drum 801, a second cutting drum 802, a third cutting drum 803 and a fourth cutting drum 804 according to the operating position. Within the range of coal mining height H, according to the requirement of a working position, a primary rocker arm 5 is hinged on the rack 1, and the primary rocker arm 5 is adjusted to a proper use position through the extension and contraction of a primary oil cylinder 4. The secondary rocker arm 7 is hinged to the primary rocker arm 5, the secondary rocker arm 7 and the cutting drum 8 are adjusted to appropriate use positions through the secondary oil cylinder 6, under the control of the comprehensive control system 9, the cutting motor 12 drives the gear transmission mechanism 13 to drive the planetary reducer 14 and the cutting drum 8 to rotate so as to cut coal, and meanwhile, under the control of the comprehensive control system 9, the traction motor 10 on the walking part 2 of the cutting motor drives the walking wheel 11 to walk on the scraper conveyor 23, so that the coal 32 is cut in the walking process of the coal mining machine.

In the using process, when the first cutting drum 801 moves with the traveling part 2 to cut the coal 32 and then travels a certain distance L, the traveling distance L is required to be larger than the width M of the hydraulic bracket 33, and the telescopic beam oil cylinder 25 on the hydraulic bracket 33 pushes the telescopic beam 24 to extend out to support the empty space after the first cutting drum 801 cuts the coal 32. Meanwhile, the primary turning beam oil cylinder 26 pushes the primary turning beam 28 to rotate and unfold to block the coal 32 cut by the first cutting drum 801, so as to prevent the coal 32 from collapsing. When the second cutting drum 802 moves along with the traveling part 2 and the traveling distance of the second cutting drum 802 cutting the coal 32 is greater than the width of the primary turning beam 28, the secondary guard plate cylinder 27 extends out and pushes the secondary guard plate 29 to extend out, so that the space behind the second cutting drum 802 cutting the coal 32 is blocked and the coal 32 is prevented from collapsing.

The coal 32 cut by the first cutting drum 801 and the second cutting drum 802 falls onto the face conveyor 23 and is carried away, and the third cutting drum 803 and the fourth cutting drum 804 cut off the lower portion of the coal 32 and carry it on the face conveyor 23 as the shearer travels, while providing room for the face conveyor 23 to move forward. At this time, the pushing cylinder 30 on the hydraulic support 33 pushes the scraper conveyor 23 to move forward, after the scraper conveyor 23 moves forward, the hydraulic support 33 takes the interactive hinge point 31 on the scraper conveyor 23 as a fulcrum, and the pushing cylinder 30 and the telescopic beam cylinder 25 on the hydraulic support 33 contract to realize the forward movement of the hydraulic support 33.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

Claims

1. A multi-level rocker arm multi-cutting drum shearer, comprising: the frame, the both ends of frame all are provided with the one-level rocking arm, its characterized in that still includes: the two ends of the second-stage rocker arm are working ends, and the cutting drum is assembled on the working ends; the two-stage oil cylinder drives the two ends of the two-stage rocker arm to swing, so that the height of the coal mining working face covered by the two cutting drums is adjustable.

2. The shearer loader with multi-level ranging arms and multi-cutting drums according to claim 1, further comprising: a primary oil cylinder; one end of the primary oil cylinder is hinged to the rack, the other end of the primary oil cylinder is hinged to the primary rocker arm, and the primary oil cylinder stretches and retracts to drive the primary rocker arm to swing.

3. The shearer loader with multi-level ranging arm and multi-cutting drum according to claim 2, further comprising: a planetary reducer; the two cutting drums are respectively assembled at two ends of the secondary rocker arm through the planetary speed reducer.

4. The shearer loader with multi-level ranging arm and multi-cutting drum according to claim 3, further comprising: a cutting motor and a gear transmission mechanism; the cutting motor drives the gear transmission mechanism to drive the planetary speed reducer to rotate.

5. The shearer loader with multi-level ranging arm and multi-cutting drum according to claim 4, further comprising: a traveling part and a supporting shoe; the walking part includes: the traction motor drives the walking wheels to walk on the scraper conveyor.