A flexible scraper conveyor in the gateway of a fully mechanized coal mining face

Abstract

The present invention relates to a flexible scraper conveyor in the gate roadway of a fully mechanized mining face. The middle troughs of the conveyor body are connected by a first dumbbell pin. The conveyor body of the conveyor includes a climbing section and a floor section. The floor section is located at the bottom of the roadway. The climbing section is inclined upward in height towards the machine head. The crusher is arranged between the climbing section and the floor section. One side of the crusher is connected to the middle trough of the climbing section by a second dumbbell pin, and the other side is connected to the middle trough of the floor section by a third dumbbell pin. The machine head is connected to the middle trough of the climbing section by a fourth dumbbell pin. The machine head and the belt self - moving tail are connected by a pushing device. A slideway is provided on the belt self - moving tail, and the climbing section and the machine head are lapped on the slideway of the belt self - moving tail. Based on the flexible connection method between the internal components of the present invention, on the basis of realizing the connection and displacement between the machine head and the belt self - moving tail, the height of the machine head part of the conveyor is reduced, the displacement distance of the conveyor is extended, and the coal mine production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gateways in fully mechanized coal mining faces, and more specifically, it relates to a flexible loading and unloading machine for gateways in fully mechanized coal mining faces. Background Art

[0002] At present, the body of the scraper loading and unloading machine in coal mines mainly adopts a box structure and is connected to the middle trough of the suspended section through bolts. It can only rotate a certain angle at the intersection points of the grooves. The middle trough of the suspended section of this structure is a rigid structure connected together. When the head part of the loading and unloading machine body is lapped with the belt self - moving tail, it is necessary to consider the interference problem with the belt self - moving tail in the case of uneven floor. A certain gap needs to be left between the bottom plate of the middle trough of the suspended section and the belt self - moving tail, making it difficult to reduce the overall height of the loading and unloading machine and difficult to adapt to the situation of relatively small roadway height in thin coal seams; and affected by the interference problem, the length of the tail of the belt conveyor cannot be too long, and the pushing stroke of the head part on the belt self - moving tail is also limited. Summary of the Invention

[0003] The purpose of the present invention is to provide a flexible scraper loading and unloading machine for gateways in fully mechanized coal mining faces, which can solve the technical problems of high overall height and limited pushing stroke at the head part of the current loading and unloading machine.

[0004] The present invention provides the following technical solution: A flexible loading and unloading machine for gateways in fully mechanized coal mining faces includes a head, a tail, a loading and unloading machine body, a crusher, a belt self - moving tail, and a pushing device. The middle troughs of the loading and unloading machine body are connected by the first dumbbell pins. The loading and unloading machine body includes a climbing section and a landing section. The landing section is located at the bottom of the roadway, and the height of the climbing section slopes upward towards the head. The crusher is arranged between the climbing section and the landing section. One side of the crusher is connected to the middle trough of the climbing section through the second dumbbell pin, and the other side is connected to the middle trough of the landing section through the third dumbbell pin. The head is connected to the middle trough of the climbing section through the fourth dumbbell pin. The head is connected to the belt self - moving tail through the pushing device. A slideway is provided on the belt self - moving tail, and the climbing section and the head are lapped on the slideway of the belt self - moving tail.

[0005] Further, the crusher includes a crusher main body, a crusher inlet trough, and a crusher outlet trough. The crusher outlet trough is connected to the crusher main body, and the crusher inlet trough is connected to the crusher main body through internal connection dumbbell pins respectively. The crusher inlet trough is connected to the middle trough of the landing section through the third dumbbell pin, and the crusher outlet trough is connected to the middle trough of the climbing section through the second dumbbell pin.

[0006] Further, the head includes a head frame and a head sprocket shaft group, the tail includes a tail frame and a tail sprocket shaft group. Head support plates are provided on both sides of the head frame, and the head support plates are slidably lapped with the slideway on the belt self - moving tail.

[0007] Further, limiting plates for guiding the sliding of the machine head are provided on both sides of the belt self-shifting machine tail.

[0008] The present invention has the following beneficial effects: For the flexible scraper conveyor in the gate roadway of the fully-mechanized coal mining face, the conveyor body is divided into a landing section and a climbing section before and after the crusher. The middle troughs of the conveyor body, between the middle troughs of the climbing section and the machine head are flexibly connected by dumbbell pins respectively. The ends of the climbing section and the machine head are directly lapped on the belt self-shifting machine tail. The pushing device connects the machine head and the belt self-shifting machine tail. Under the action of the cylinder of the pushing device, the climbing section can stably move along the slideway on the belt self-shifting machine tail. This kind of connection structure is reasonably and skillfully arranged, which can effectively reduce the overall height of the machine head part of the conveyor. There is no need to consider the problem of floor interference at the connection position between the belt self-shifting machine tail and the conveyor. The conveyor can achieve a longer pushing stroke relative to the belt self-shifting machine tail, which can significantly improve the coal mining production efficiency. The belt self-shifting machine tail is provided with a slideway and a limiting plate to ensure that the machine head can stably displace relative to the belt self-shifting machine tail along a straight path. Description of the Drawings

[0009] Figure 1 is a schematic diagram of the working state displacement of Embodiment 1 of the flexible conveyor in the gate roadway of the fully-mechanized coal mining face of the present invention;

[0010] Figure 2 is a schematic structural diagram of Embodiment 1 of the flexible conveyor in the gate roadway of the fully-mechanized coal mining face of the present invention from a side view;

[0011] Figure 3 is a schematic structural diagram of the tail part of Embodiment 1 of the flexible conveyor in the gate roadway of the fully-mechanized coal mining face of the present invention;

[0012] Figure 4 is Figure 2 the cross-sectional view at C-C in ;

[0013] Figure 5 is Figure 2 the partial cross-sectional view of the section at F-F in ;

[0014] Figure 6 is Figure 2 the cross-sectional view at B-B in ;

[0015] Reference numerals: 1 - belt self-shifting machine tail; 2 - pushing device; 3 - machine head; 4 - climbing section; 6 - crusher outlet trough; 7 - crusher main body; 8 - crusher inlet trough; 10 - landing section; 11 - tail; 12 - tail sprocket shaft group; 13 - slideway; 14 - machine head support plate; 15 - machine head sprocket shaft group; 16 - pushing device cylinder; 17 - limiting plate. Detailed Embodiments

[0016] The present invention will be described in detail below with reference to the drawings.

[0017] Specific Embodiment 1 of a flexible scraper conveyor in the gate roadway of a fully-mechanized coal mining face of the present invention:

[0018] The overall structure of this flexible scraper conveyor in the gate roadway of the fully-mechanized coal mining face is as shown in Figure 1 - Figure 3 and mainly consists of a belt self-advancing tail 1, a pushing mechanism 2, a head 3, a tail 11, the body of the conveyor, and a crusher. The middle troughs of the conveyor body are connected by first dumbbell pins. The crusher is arranged on the conveyor body and the conveyor body is divided into a climbing section 4 and a floor section 10 on both sides of the crusher. The floor section 10 is located at the bottom of the roadway. One end of the climbing section 4 is connected to the crusher, and the other end is lifted obliquely upward towards the head 3. The crusher includes a crusher main body 7, a crusher inlet trough 8, and a crusher outlet trough 6. Among them, the crusher main body 7 is connected to the crusher inlet trough 8 and the crusher outlet trough 6 respectively by internal connection dumbbell pins. The floor section 10 is located on one side of the crusher inlet trough 8, and the middle trough of the floor section 10 is connected to the crusher inlet trough 8 by a third dumbbell pin. The climbing section 4 is located on one side of the crusher outlet trough 6, and the middle trough of the climbing section 4 is connected to the crusher outlet trough 6 by a second dumbbell pin.

[0019] The head includes a head frame and a head sprocket shaft group 15 arranged on the head frame, which plays a driving role in the scraper chain of the conveyor. Similarly, the tail includes a tail frame and a tail sprocket shaft group 12 arranged on the head frame, which plays a driving role in the scraper chain of the conveyor. The head frame is connected to the middle trough of the climbing section 4 by a fourth dumbbell pin. A pushing device 2 is connected between the head 3 and the belt self-advancing tail 1. As shown in Figure 4 - Figure 6 , slideways 13 are provided on both sides of the belt self-advancing tail. Head support plates 14 are provided on both sides of the head frame. The head support plates 14 on both sides of the middle trough of the climbing section 4 and on the head frame are all lapped on the slideways 13 on both sides of the belt self-advancing tail. As shown in Figure 1 , under the driving action of the pushing device cylinder 16, the head and the conveyor body can move relative to the belt self-advancing tail along the slideways 13. To limit the displacement path, limit plates 17 are also provided on both sides of the belt self-advancing tail, so that the head and the conveyor are linearly slid along the slideways under the action of the pushing device. The maximum pushing stroke of the conveyor relative to the belt self-advancing tail is A.

[0020] The flexible scraper conveyor in the gate road of the fully-mechanized coal mining face provided by the present invention divides the conveyor body into a floor section and a climbing section, and a crusher is provided between the floor section and the climbing section. Among them, the middle troughs of the conveyor body, between the climbing section and the head, between the climbing section and the crusher, and between the floor section and the crusher are all connected by a dumbbell pin flexible connection structure. The conveyor body and the head are directly lapped on the belt self-advancing tail. Under the action of the pushing device, the head and the conveyor body move linearly relative to the belt self-advancing tail. Through the above flexible connection method, the height interval between the conveyor body and the belt self-advancing tail is eliminated, and the overall height of the head part of the conveyor is significantly reduced. On this basis, when realizing the pushing function, there is no need to consider the problem of floor interference, and the pushing stroke of the conveyor relative to the belt self-advancing tail is larger, thereby improving the coal mining production efficiency.

[0021] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A flexible conveyor for the gateway of a fully mechanized coal mining face, characterized in that, It includes a machine head, a machine tail, the body of a conveyor, a crusher, a belt self - moving machine tail, and a pushing device. The middle troughs of the conveyor body are connected by the first dumbbell pins. The conveyor body includes a climbing section and a floor section. The floor section is located at the bottom of the roadway. The climbing section slopes upward obliquely towards the machine head. The crusher is arranged between the climbing section and the floor section. One side of the crusher is connected to the middle trough of the climbing section through the second dumbbell pin, and the other side is connected to the middle trough of the floor section through the third dumbbell pin. The machine head is connected to the middle trough of the climbing section through the fourth dumbbell pin. The machine head is connected to the belt self - moving machine tail through the pushing device. A slideway is provided on the belt self - moving machine tail. The climbing section and the machine head are lapped on the slideway of the belt self - moving machine tail; The crusher includes a crusher main body, a crusher inlet trough, and a crusher outlet trough. The crusher outlet trough is connected to the crusher main body, and the crusher inlet trough is connected to the crusher main body respectively through internal connection dumbbell pins. The crusher inlet trough is connected to the middle trough of the floor section through the third dumbbell pin. The crusher outlet trough is connected to the middle trough of the climbing section through the second dumbbell pin.

2. The flexible conveyor for gate road in fully mechanized coal face according to claim 1, wherein The machine head includes a machine head frame and a machine head sprocket shaft group. The machine tail includes a machine tail frame and a machine tail sprocket shaft group. Machine head support plates are provided on both sides of the machine head frame. The machine head support plates are slidably lapped with the slideway on the belt self - moving machine tail.

3. The flexible belt conveyor for gate road in fully mechanized coal face according to claim 1, characterized in that Limit plates for guiding the sliding of the machine head are provided on both sides of the belt self - moving machine tail.

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