Self-moving tail system for thin coal seam

Abstract

The utility model discloses a self-moving tail system for a thin coal seam, which comprises a walking trolley, the left side and the right side of the walking trolley are respectively lapped on the upper side of a rack, and the walking trolley can advance towards the front end along the rack; a reversed loader is borne on the upper side of the walking trolley and used for transferring coal on the working face to a belt of the rack and then conveying the coal to the front end. The fixed end of the lifting oil cylinder is fixedly connected with the side wall of the walking trolley; the advancing plate is located on the side portion of the rack and is close to the roadway ground, the upper side of the advancing plate is fixedly connected with the movable end of the lifting oil cylinder, the advancing plate is used for pressing downwards when the lifting oil cylinder stretches out and forcing the advancing plate to abut against the ground, and then the walking trolley and the reversed loader leave the rack so that the rack can advance forwards conveniently; the advancing plate is further used for pulling the advancing plate to leave the ground and advance forwards along with the reversed loader when the lifting oil cylinder retracts. The device is simple in structure, convenient to operate, labor-saving and labor-saving; and the equipment operation stability is effectively improved, equipment abrasion is reduced, and stable and safe production of equipment is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine fully mechanized mining equipment, in particular to a self-moving machine tail system for thin coal seams. Background Art

[0002] With the development of mechanization of coal mining, many medium-thick and thick coal seams suitable for mining are gradually decreasing, while my country's medium-thin coal seams are widely distributed. In order to ensure the sustainable use of resources, the mining of thin coal seams has become a hot topic for coal enterprises. The self-moving tail is an important part of the working face chute transportation equipment, which is used to connect the bridge transfer machine and the conveyor, and is the guarantee of high production and efficiency of the working face.

[0003] At present, the self-moving tail of medium-thick coal seams and thick coal seams has been relatively perfected, and will develop in the direction of large-scale and small-scale in the future. Large-scale tail mainly meets the use requirements of full-height mining in extra-thick coal seams, and small-scale tail meets the use requirements of thin coal seam mining. With the improvement of the comprehensive mechanization level of coal mining, the development of self-moving tail should gradually realize the serialization of models and functions to meet the use requirements of different mining heights. At the same time, the automation of various functions of the self-moving tail is gradually realized, including the automatic adjustment of belt deviation, the automatic forward movement of the tail chassis after the transfer machine completes a cycle of movement, and the automatic straightening of the tail's forward direction. The realization of these functions will change the working mode of the self-moving tail, which must be operated by someone, and is one of the important technologies for unmanned working face coal mining.

[0004] At present, there are a small number of thin coal seam working faces in China that use single conveying equipment, and there is no systematic consideration of the matching use of working face conveying equipment and chute conveying equipment. When developing thin coal seam working faces, due to the lack of dedicated thin coal seam chute transportation equipment, only low-height fully mechanized mining equipment is used, which increases the amount of top or bottom picks in the chute, resulting in a large amount of chute development engineering and high development costs, resulting in low coal production efficiency and poor benefits. Enterprises are unwilling to invest, which also leads to low output and benefits of thin coal seam mining equipment manufacturers.

[0005] At present, the difficulties faced in the design and development of the self-moving tail of thin coal seams are that the height of the self-moving tail device is difficult to lower, it is not easy to operate, and the frame of the self-moving tail itself is too heavy. These problems lead to substantial damage to the original occurrence state and continuity of coal seams below 2m or the abandonment of thin coal seam resources. It also causes large resistance to the movement of the self-moving tail and difficulty in operation. In order to ensure the safety and reliability of the self-moving tail design, most designs use two rows of cylinders on both sides, with about 20 cylinders, which makes it difficult to arrange the pipelines and use heavier plates in the structural design. Materials with good new functions, wide application range and low cost are not selected according to product functions and costs, resulting in cost waste. Utility Model Content

[0006] The purpose of the present utility model is to provide a self - moving tail system for thin coal seams, so as to solve the problems of the heavy and thick self - moving tail frame, large moving resistance, and difficult movement of the tail end.

[0007] The present utility model adopts the following technical solutions: A self - moving tail system for thin coal seams, comprising:

[0008] A walking trolley, with its left and right sides respectively placed on the upper side of the frame and capable of moving forward along the frame; a transfer machine is carried on the upper side of the walking trolley, and the transfer machine is used to transfer the coal in the working face to the belt on the frame and then transport it forward.

[0009] A lifting oil cylinder, vertically arranged, with its fixed end fixedly connected to the side wall of the walking trolley and its movable end arranged downward.

[0010] A traveling plate, horizontally arranged, located at the side of the frame and close to the roadway ground, with its upper side fixedly connected to the movable end of the lifting oil cylinder. The traveling plate is used to press downward when the lifting oil cylinder extends and force the traveling plate to abut against the ground, so that the walking trolley and the transfer machine leave the frame to facilitate the forward movement of the frame; the traveling plate is also used to pull the traveling plate away from the ground when the lifting oil cylinder retracts and move forward with the transfer machine.

[0011] Further, it further comprises:

[0012] A pushing oil cylinder, with its direction along the roadway direction, its movable end fixedly connected to the front side wall of the frame, and its fixed end fixedly connected to the front end of the traveling plate, used to extend when the frame moves forward and retract when the traveling plate moves forward, so as to move forward reciprocally.

[0013] Further, there are two pushing oil cylinders, which are respectively located on the left and right sides of the frame.

[0014] Further, the frame is composed of a belt, a belt rack for carrying the belt, rollers, and a deflecting roller located at the rear end. The walking trolley is placed on the upper side of the belt rack. Guide rails are respectively fixedly connected to the left and right sides of the belt rack, and the guide rails are arranged along the roadway direction for the walking trolley to move forward on them.

[0015] Further, there are two lifting oil cylinders and traveling plates respectively, which are respectively located on the left and right sides of the frame.

[0016] Further, it further comprises:

[0017] An adjusting oil cylinder, vertically arranged, with its fixed end fixedly connected to the side wall of the frame, and its movable end extending downward and fixedly connected to the upper side of the traveling plate, used to extend when the walking trolley is lifted by the lifting oil cylinder, so as to make the frame in an inclined state and avoid interfering with the lifting of the walking trolley.

[0018] Furthermore, there are two adjusting oil cylinders, which are respectively located on the left and right sides of the frame.

[0019] The beneficial effects of the present utility model are as follows:

[0020] The structure of the present utility model is simple, easy to operate, labor-saving and time-saving; it can effectively improve the stability of the equipment operation, reduce the wear of the equipment, and ensure the safe and stable production of the equipment;

[0021] The overall height of the present utility model is low, which is suitable for the situation where the ground undulation in the mine is large; when the frame of the self-advancing tail needs to move forward, the traveling plate is pulled up and leaves the ground, which can avoid the increase in resistance and equipment damage caused by the rubbing of the equipment against the ground; when the transfer machine moves forward, the walking trolley carries the transfer machine and moves forward on the frame, making the operation of the self-advancing tail more convenient, improving the stability of the operation of the self-advancing tail, reducing the wear of the equipment, extending the service life of the mechanical structure of the self-advancing tail, and ensuring the safe and stable production of the equipment;

[0022] The structure of the present utility model is simple, the number of oil cylinders is small, and the oil pipe layout is simple, which can effectively reduce the manufacturing cost of the self-advancing tail and improve the economic benefits;

[0023] In the case of a longer self-advancing tail, the present utility model can reduce the friction between the fuselages caused by the inclination of the fuselage, effectively avoid the structural loss and damage to the mechanical structure caused by the friction, and can be adjusted according to different inclination angles, improving the reliability and stability of the whole set of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a partial schematic diagram of the present utility model at the walking trolley;

[0026] Figure 3 is a partial cross-sectional view of the present utility model;

[0027] Figure 4 is a schematic structural diagram of the adjusting oil cylinder of the present utility model;

[0028] Figure 5 is a cross-sectional view of the device for adjusting the inclination angle of the frame of the self-advancing tail system of the present utility model.

[0029] Wherein: 10, traveling trolley; 11, lifting oil cylinder; 12, traveling plate; 13, adjusting plate; 14, pushing oil cylinder; 15, redirecting roller; 16, adjusting oil cylinder; 17, bearing plate; 18, sliding plate; 19, front wheel; 20, rear wheel; 21, clamping plate; 23, adjusting hole; 24, adjusting rod; 25, horizontal movable rod; 26, limiting plate; 28, lifting shaft; 29, adjusting wheel. Detailed implementation manner

[0030] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. The "travel direction" in the present utility model is described based on the travel direction of the present utility model when it is in Figure 1 a certain state.

[0032] The present utility model discloses a self - moving tail system for thin coal seams, as Figure 1 shown, including: a traveling trolley 10, a lifting oil cylinder 11, and a traveling plate 12.

[0033] The left and right sides of the traveling trolley 10 are respectively placed on the upper side of the frame and can travel forward along the frame; the upper side of the traveling trolley 10 carries a conveyor, and the conveyor is used to transfer the coal on the working face to the belt on the frame and then transport it forward.

[0034] The lifting oil cylinder 11 is vertically arranged, the fixed end of the lifting oil cylinder 11 is fixedly connected to the side wall of the traveling trolley 10, and the movable end of the lifting oil cylinder 11 is arranged downward; the traveling plate 12 is horizontally arranged, the traveling plate 12 is located at the side part of the frame and close to the roadway ground, the upper side of the traveling plate 12 is fixedly connected to the movable end of the lifting oil cylinder 11, and the traveling plate 12 is used to press downward when the lifting oil cylinder 11 extends and force the traveling plate 12 to abut against the ground, so that the traveling trolley 10 and the transfer machine leave the frame to facilitate the forward movement of the frame; the traveling plate 12 is also used to pull the traveling plate 12 away from the ground when the lifting oil cylinder 11 retracts and move forward with the transfer machine.

[0035] The utility model further includes: a pushing oil cylinder 14, the direction of the pushing oil cylinder 14 is arranged along the roadway direction, the movable end of the pushing oil cylinder 14 is fixed on the front side wall of the frame, the fixed end of the pushing oil cylinder 14 is fixed on the front end of the traveling plate 12, and the pushing oil cylinder 14 is used to extend when the frame moves forward and retract when the traveling plate 12 moves forward, so as to move forward reciprocally. There are two pushing oil cylinders 14 and they are respectively located on the left and right sides of the frame.

[0036] The frame is composed of a belt, a belt rack for carrying the belt, rollers and a redirecting roller 15 located at the rear end. The traveling trolley 10 is placed on the upper side of the belt rack. Guide rails are respectively fixedly connected to the left and right sides of the belt rack. The guide rails are arranged along the roadway direction and are used for the traveling trolley 10 to move forward on them.

[0037] There are two lifting oil cylinders 11 and two traveling plates 12, and they are respectively located on the left and right sides of the frame.

[0038] The utility model further includes: an adjusting oil cylinder 16, the adjusting oil cylinder 16 is vertically arranged, the fixed end of the adjusting oil cylinder 16 is fixed on the side wall of the frame, the movable end of the adjusting oil cylinder 16 extends downward and is fixedly connected to the upper side of the traveling plate 12, and the adjusting oil cylinder 16 is used to extend when the traveling trolley 10 is lifted by the lifting oil cylinder 11, so that the frame is in an inclined state, thereby avoiding interfering with the lifting of the traveling trolley 10. There are two adjusting oil cylinders 16 and they are respectively located on the left and right sides of the frame.

[0039] As Figure 2 and 3 shown, the traveling trolley 10 includes: a bearing plate 17, two sliding plates 18 and two front wheels 19.

[0040] The bearing plate 17 is horizontally arranged, the bearing plate 17 is located on the upper side of the frame, and the transfer machine is fixed on the bearing plate 17; the upper sides of the two sliding plates 18 are respectively fixedly connected to the left and right sides of the bearing plate 17, the lower sides of the two sliding plates 18 extend downward and extend into the area between the frame and the guide rail fixed on the frame; the two front wheels 19 are respectively fixed on the outer sides of the sliding plates 18, and the lower sides of the two front wheels 19 are placed on the guide rail, so that the traveling trolley 10 travels on the guide rail.

[0041] The traveling trolley 10 further includes: two rear wheels 20, which are respectively fixed on the outer sides of the sliding plate 18 and are at a predetermined distance from the front wheels 19. The lower sides of the two rear wheels 20 are placed on the guide rail, and thus cooperate with the front wheels 19 to enable the traveling trolley 10 to travel on the guide rail.

[0042] A heightening plate is fixedly connected to the middle of the bearing plate 17. The lower side of the heightening plate is fixedly connected to the bearing plate 17. The heightening plate is used to raise the fixed height of the fixed conveyor, and thus avoid interference with the actions of the conveyor on the left and right sides of the rear frame after installation.

[0043] The utility model further includes: a device for adjusting the tilting angle of the frame of the self-propelled tail system, such as Figure 4 and Figure 5 as shown, including: an adjusting oil cylinder 16 and a lifting mechanism.

[0044] The adjusting oil cylinder 16 is arranged vertically. The fixed end of the adjusting oil cylinder 16 is fixed on the side wall of the frame. The movable end of the adjusting oil cylinder 16 extends downward. The adjusting oil cylinder 16 is used to extend when the traveling trolley 10 is lifted, so as to facilitate the frame to be in an inclined state, and thus avoid interfering with the lifting of the traveling trolley 10. The traveling trolley 10 is arranged on the upper side of the frame, and a conveyor is fixedly connected thereto. Two adjusting oil cylinders 16 are provided and are respectively located on the left and right sides of the frame.

[0045] One side of the lifting mechanism is fixedly connected to the adjusting oil cylinder 16, and the other side of the lifting mechanism extends into the lower side of the guide rail. The lifting mechanism is used to rotate backward when the adjusting oil cylinder 16 extends to lift the frame upward to make the frame in an inclined state, and thus avoid the frame interfering with the lifting of the traveling trolley 10.

[0046] The lifting mechanism includes: an adjusting plate 13, a lifting shaft 28, and an adjusting wheel 29.

[0047] The adjusting plate 13 is arranged vertically. The adjusting plate 13 is located between the adjusting oil cylinder 16 and the frame. One side of the adjusting plate 13 is fixedly connected with an "n"-shaped clamping plate 21. The opening of the clamping plate 21 is used to extend downward from top to bottom into both sides of the guide rail fixed on the frame, and the adjusting plate 13 is clamped on the guide rail from the upper side; a central hole and an adjusting hole 23 are formed in the adjusting plate 13. The central hole is used for the horizontal movable rod 25 fixedly connected to the adjusting oil cylinder 16 to extend into, and the adjusting hole 23 is located above the central hole and is a horizontal strip-shaped hole, and the adjusting hole 23 is used for the adjusting rod 24 fixedly connected to the fixed end of the adjusting oil cylinder 16 to extend into.

[0048] The lifting shaft 28 is horizontally arranged. One end of the lifting shaft 28 is fixedly connected to the adjusting plate 13, and the other end of the lifting shaft 28 extends into the lower side of the guide rail. The adjusting wheel 29 is sleeved on the lifting shaft 28, and the adjusting wheel 29 is used to cooperate with the clamping plate 21 to lift the frame upward. Among them, the adjusting plate 13 is used to rotate backward or forward with the horizontal movable rod 25 as the center and the adjusting hole 23 as the rotation range. There are two lifting shafts 28 and two adjusting wheels 29 are also provided.

[0049] A limiting plate 26 is also fixedly connected to the side of the adjusting plate 13 close to the frame. The fixed position of the limiting plate 26 is located above the central hole. An arc-shaped limiting groove is recessed upward on the lower side of the limiting plate 26. The limiting groove is used to extend into the clamping groove near the end of the horizontal movable rod 25, so as to limit the horizontal movable rod 25 and prevent the horizontal movable rod 25 from disengaging from the central hole.

[0050] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self - shifting tail system for thin coal seams, characterized in that, Comprising: A walking trolley (10), with its left and right sides respectively resting on the upper side of the frame and capable of advancing along the frame towards the front end; a transfer machine is carried on the upper side of the walking trolley (10), and the transfer machine is used to transfer the coal from the working face to the belt of the frame and then transport it forward to the front end; A lifting oil cylinder (11), vertically arranged, with its fixed end fixedly connected to the side wall of the walking trolley (10), and its movable end arranged downward; A traveling plate (12), horizontally arranged, located at the side of the frame and close to the roadway ground, with its upper side fixedly connected to the movable end of the lifting oil cylinder (11). The traveling plate (12) is used to press downward when the lifting oil cylinder (11) extends and force the traveling plate (12) to abut against the ground, so that the walking trolley (10) and the transfer machine leave the frame to facilitate the forward movement of the frame; the traveling plate (12) is also used to pull the traveling plate (12) away from the ground when the lifting oil cylinder (11) retracts and move forward with the transfer machine.

2. The self-advancing shearer tail system for thin coal seams according to claim 1, characterized in that, Also comprising: A pushing oil cylinder (14), with its direction along the roadway direction, its movable end fixedly connected to the front side wall of the frame, and its fixed end fixedly connected to the front end of the traveling plate (12), used to extend when the frame moves forward and retract when the traveling plate (12) moves forward, and thus reciprocally move forward.

3. The self - shifting tail system for thin coal seams according to claim 2, characterized in that, There are two pushing oil cylinders (14), and they are respectively located on the left and right sides of the frame.

4. The self-advancing tail system for thin coal seams according to claim 1, wherein, The frame is composed of a belt, a belt rack for carrying the belt, rollers, and a deflecting roller (15) located at the rear end. The walking trolley (10) rests on the upper side of the belt rack. Guide rails are respectively fixedly connected to the left and right sides of the belt rack. The guide rails are arranged along the roadway direction, and the guide rails are used for the walking trolley (10) to advance forward on them.

5. The self - shifting tail system for thin coal seams according to claim 1, characterized in that, There are two lifting oil cylinders (11) and traveling plates (12), and they are respectively located on the left and right sides of the frame.

6. The self - moving tail system for thin coal seams according to claim 5, characterized in that, Also comprising: An adjusting oil cylinder (16), vertically arranged, with its fixed end fixedly connected to the side wall of the frame, and its movable end extending downward and fixedly connected to the upper side of the traveling plate (12), used to extend when the walking trolley (10) is lifted by the lifting oil cylinder (11), so that the frame is in an inclined state, thereby avoiding interfering with the lifting of the walking trolley (10).

7. The self - shifting tail system for thin coal seams according to claim 6, characterized in that, There are two adjusting oil cylinders (16), and they are respectively located on the left and right sides of the frame.

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