Coal mining machine auxiliary supporting device suitable for large-gradient down mining

Abstract

The utility model discloses a coal mining machine auxiliary supporting device suitable for large-gradient down mining, which is used for a coal mining machine, a hydraulic support used for supporting a working space is arranged in the working space of the coal mining machine, a support hanging ring is arranged at the top of the hydraulic support, and the direction facing a coal wall is used as the forward direction. The traction mechanism is provided with a suspension device which is upwards suspended on a bracket suspension ring and a steel wire rope which is used for downwards suspending the supporting mechanism; the supporting mechanism comprises a buckling part used for being buckled with the front end of the coal mining machine, the buckling part is forwards connected with a supporting top plate through a supporting structure, and the supporting top plate is used for forwards jacking and pressing the coal wall and bearing part of the weight of the coal mining machine. Upward suspension force can be generated on the coal mining machine, gravity component force generated in the down-dip mining direction can be borne, the overall stress performance of the coal mining machine in the large-gradient down-dip mining process is remarkably improved through a hydraulic support and the down-dip mining machine, abrasion of the guide sliding shoe and the supporting top plate is relieved, and therefore the service life of the coal mining machine is prolonged. And the operation safety in the large-gradient down-dip mining process is also ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a supporting technology for a coal mining machine for steep slope mining. Background Art

[0002] In recent years, with the rapid development of coal mining technology in my country's coal mining enterprises, the automation level and production efficiency of underground coal mining machinery have been greatly improved. However, in actual production, my country's coal seam geological conditions are complex, especially the large inclination of coal seams and hard coal quality. Therefore, the cutting part, walking part and other parts of the coal mining machine with complex forces are prone to premature failure, which seriously affects the coal mining efficiency.

[0003] The guide shoe is part of the shearer's travel mechanism and one of its important parts. It is mainly used to support and guide the movement of the shearer on the coal seam working surface. The guide shoe is usually installed at the bottom of the shearer, in contact with the surface of the coal seam, to help the shearer to move forward or backward smoothly along the working surface.

[0004] The guide shoe is subjected to greater force during downward mining at a large slope, and is prone to excessive wear, breakage and other faults, which greatly affects the working stability and production efficiency of the coal mining machine.

[0005] The design idea of ​​this utility model:

[0006] It is pulled by a steel wire rope to balance part of the force on the coal mining machine when it is inclined; it relies on the support top plate to press against the coal wall to offset the gravity component of the coal mining machine along the inclination of the coal seam, share the force on the guide sliding shoe during the large-slope downward mining process, reduce the wear of the guide sliding shoe, extend the service life of the coal mining machine's guide sliding shoe, and improve the safety of the coal mining machine during large-slope downward mining operations. Utility Model Content

[0007] The purpose of the utility model is to implement the above design ideas, reduce the overall stress during large-slope downward mining, make the guide sliding shoes and supporting top plates less likely to wear and break, thereby improving the working stability and production efficiency of the coal mining machine.

[0008] To achieve the above-mentioned purpose, the utility model discloses an auxiliary support device for a coal mining machine suitable for steep slope mining, which is used for a coal mining machine. A hydraulic support for supporting the working space is provided in the working space of the coal mining machine, and a support ring is provided on the top of the hydraulic support, with the direction toward the coal wall as the forward direction. The utility model includes a traction mechanism, which has a suspension device for suspending upward on the support ring, and the traction mechanism has a steel wire rope for suspending the support mechanism downward;

[0009] The supporting mechanism includes a buckling part for buckling with the front end of the coal mining machine. The buckling part is connected to a supporting top plate through a supporting structure. The supporting top plate is used to press the coal wall forward and bear part of the weight of the coal mining machine.

[0010] The traction mechanism includes a guide rail, which is composed of a plurality of guide rail units, and adjacent guide rail units are rotatably connected; a suspension device is arranged on the top of the guide rail;

[0011] Each guide rail unit is slidably supported by a slide rail block, and each slide rail block is downwardly connected to one of the steel wire ropes.

[0012] The guide rail unit includes a guide rail body, which is an I-beam structure as a whole. The guide rail body includes a middle plate, a top plate and a bottom plate.

[0013] The two ends of the guide rail body are respectively a socket A end and a socket B end, and the socket A ends of adjacent guide rail units are plugged and matched with the socket B ends; the socket A end is alternately provided with arc grooves and arc protrusions from top to bottom, and the socket B end is alternately provided with arc protrusions and arc grooves adapted to the socket A end from top to bottom; each arc protrusion of the socket A end and the socket B end is provided with corresponding hinge holes, and the hinge holes are long holes;

[0014] The socket A end and the socket B end of two adjacent guide rail units are plugged into each other and a hinge rod passes through the hinge hole. The lower end of the hinge rod has an external thread and is threadedly connected with a fastening nut. The top end of the hinge rod is provided with the suspension device.

[0015] The suspension device includes a U-shaped seat integrally arranged with or fixedly connected to the hinged rod, the U-shaped seat opening faces upward and is used to insert the support ring of the hydraulic support into it, and the U-shaped seat is penetrated by a horizontally arranged suspension bolt, which passes through the support ring of the hydraulic support.

[0016] The slide block has a hollow inner cavity, and an inverted T-shaped groove adapted to the middle plate and the bottom plate of the guide rail body is provided on the upper part of the slide block. The inverted T-shaped groove includes a vertical groove located at the upper part of the slide block and a horizontal groove located in the middle part of the slide block. The groove wall of the vertical groove is slidably matched with the middle plate, and the top wall of the horizontal groove is pressed downwardly on the bottom plate of the guide rail body and slidably matched with the bottom plate.

[0017] The inverted T-shaped groove is communicated with the inner cavity of the slide rail block, a horizontal shaft is installed in the inner cavity below the inverted T-shaped groove, a concave wheel is installed on the horizontal shaft, and the upper end of the wire rope is connected to the concave wheel.

[0018] The vertical section of the buckling part of the support mechanism is in the shape of ]; the top surface of the buckling part is provided with a plurality of lower hanging rings corresponding to each steel wire rope; the lower end of the steel wire rope is connected to the lower hanging ring; the buckling part is used to buckle on the front of the coal mining machine.

[0019] The support structure comprises a main support column vertically connected to the front side surface of the buckle part, and the front part of the main support column is connected to an auxiliary support column arranged obliquely backward and downward; the main support column is connected to the front side surface of the buckle part backward through a main force-bearing seat, and the auxiliary support column is connected to the front side surface of the buckle part backward through an auxiliary force-bearing seat; the main force-bearing seat and the auxiliary force-bearing seat are both trumpet-shaped with a small front and a large rear;

[0020] The front end of the main support column is connected forwardly with an insertion block, and the insertion block is provided with a through hole that is transparent from top to bottom;

[0021] A socket matching the insertion block is provided on the rear surface of the support top plate, and an opening is provided on the socket corresponding to the through hole on the insertion block; the insertion block is inserted into the socket, and pins are inserted into the through hole of the insertion block and the opening on the corresponding socket, thereby connecting the main support column and the support top plate together; a positioning bolt is passed through the portion of the bottom end of the pin extending out of the socket, and the positioning bolt confines the pin at the socket and the insertion block;

[0022] The pins, positioning bolts, main support columns, auxiliary support columns, sockets and insert blocks form a group of the support structures. A support top plate is connected to the front surface of the buckle portion through three groups of the support structures. Two support top plates are arranged side by side at intervals.

[0023] The utility model has the following advantages:

[0024] The utility model is buckled at the front end of the coal mining machine through the buckling part. When the coal mining machine is in the downward mining, part of the weight is borne by the upward suspension force of the steel wire rope in the utility model. The weight of the coal mining machine generates a component force in the direction of the support top plate and the coal wall pressing each other, and the component force is borne by the support top plate. The flexibility of the steel wire rope can make the steel wire rope match different inclination angles with different downward mining angles, ensuring that the utility model can generate the above two forces (i.e., the upward suspension force and the gravity component force generated in the downward mining direction) on the coal mining machine. The hydraulic support and the utility model are used to significantly improve the overall force performance of the coal mining machine in the process of large-slope downward mining, reduce the wear of the guide sliding shoe and the support top plate, thereby extending their service life, and also ensure the safety of the operation in the process of large-slope downward mining.

[0025] The hinge hole is preferably a long hole (such as a runway-shaped hole) rather than a round hole, so that a certain amount of movement can be left for the hinge rod to adapt to the gap changes caused by the hydraulic support when it moves.

[0026] The arc grooves and arc protrusions of the socket A end and the socket B end are plugged into each other and are rotatably connected through the hinge rod. The connection is firm and does not prevent the two from rotating at a certain angle. The arrangement of the socket A end and the socket B end and the hinge rod allows the guide rail to be not a straight line in the length direction, but can be curved according to the specific structure of the hydraulic support in the working environment, so that the utility model has strong adaptability and can adapt to different underground working environments and different shapes of hydraulic supports.

[0027] The suspension device has a simple structure and a strong bearing capacity, and can conveniently and reliably suspend the utility model on the support ring of the hydraulic support.

[0028] The slide block is slidably connected to the guide rail through an inverted T-shaped groove and is carried on the guide rail. The structure is firm and easy to install. The upper end of the wire rope is connected to the concave wheel, and the connection is more stable and will not fall off the concave wheel.

[0029] The ]-shaped buckle part is convenient for buckling on the front of the coal mining machine to withstand the pressure of the coal mining machine on the coal wall, and is also convenient for hanging on the hydraulic support through wire ropes and traction mechanisms.

[0030] The main force bearing seat and the auxiliary force bearing seat are both trumpet-shaped with a small front and a large rear, which reduces the pressure between the main support column and the front surface of the buckle part, and also reduces the pressure between the auxiliary support column and the front surface of the buckle part, thereby improving the structural strength of the support mechanism. The support structure has high strength and can withstand the tight pressure on the coal wall formed by the weight of the coal mining machine, and is not easy to be damaged.

[0031] The tension adjustment device can adjust the ratio of the suspension force of the wire rope to the tight pressure of the supporting roof on the coal wall of the working face, reasonably distribute the force distribution, and enhance the overall force performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The utility model is a structural schematic diagram of an auxiliary support device for a coal mining machine suitable for steeply inclined mining.

[0033] Figure 2 yes Figure 1 Right view of .

[0034] Figure 3 yes Figure 1 AA section view.

[0035] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0036] Figure 5 yes Figure 1 BB cross-sectional view.

[0037] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0038] Figure 7 It is a three-dimensional structural schematic diagram of the auxiliary support device of the coal mining machine suitable for steep slope mining in the utility model.

[0039] Figure 8 yes Figure 1 Enlarged view of point C in the middle. DETAILED DESCRIPTION

[0040] like Figures 1 to 8 As shown, the utility model is suitable for the auxiliary support device of the coal mining machine for steep slope mining. The coal mining machine has a hydraulic support for supporting the working space. The top of the hydraulic support is provided with a support ring. It is a conventional technology to set the support ring on the top of the hydraulic support. The hydraulic support and the support ring are not shown in the figure. In the utility model, the direction toward the coal wall of the working face is referred to as the forward direction.

[0041] The utility model is suitable for the auxiliary support device of the coal mining machine for steep slope mining, comprising a traction mechanism, the traction mechanism having a suspension device for upward suspension on the bracket suspension ring, and the traction mechanism having a steel wire rope 1 for downward suspension of the support mechanism;

[0042] The supporting mechanism includes a buckling part 2 for buckling with the front end of the coal mining machine. The buckling part 2 is connected to a supporting top plate 3 through a supporting structure. The supporting top plate 3 is used to press the coal wall forward and bear part of the weight of the coal mining machine.

[0043] The utility model is buckled at the front end of the coal mining machine through the buckling part 2. When the coal mining machine is in the downward mining, part of the weight is borne by the upward suspension force of the steel wire rope 1 in the utility model. The weight of the coal mining machine generates a component force in the direction where the supporting top plate 3 presses against the coal wall, and the component force is borne by the supporting top plate 3. The flexibility of the steel wire rope 1 enables the steel wire rope 1 to match different inclination angles with different downward mining angles, ensuring that the utility model can generate the above two forces (i.e., the upward suspension force and the gravity component force generated in the downward mining direction) on the coal mining machine. The hydraulic support and the utility model are used to significantly improve the overall force performance of the coal mining machine in the process of large-slope downward mining, slow down the wear of the guide shoe, thereby extending its service life, and also ensure the safety of the operation in the process of large-slope downward mining.

[0044] The traction mechanism includes a guide rail, which is composed of a plurality of guide rail units, and adjacent guide rail units are rotatably connected; a suspension device is arranged on the top of the guide rail;

[0045] Each guide rail unit slidably carries a slide rail block 4 , and each slide rail block 4 is connected downwardly to one of the steel wire ropes 1 .

[0046] The guide rail unit includes a guide rail body, which is an I-beam structure as a whole. The guide rail body includes a middle plate 5, a top plate 6 and a bottom plate 7.

[0047] The two ends of the guide rail body are respectively a socket A end 8 and a socket B end 9, and the socket A end 8 and the socket B end 9 of the adjacent guide rail units are plugged and matched; the socket A end 8 is alternately provided with arc grooves 10 and arc protrusions 11 from top to bottom, and the socket B end 9 is alternately provided with arc protrusions 11 and arc grooves 10 for matching with the socket A end 8 from top to bottom; each arc protrusion 11 of the socket A end 8 and the socket B end 9 is provided with corresponding hinge holes 12, and the hinge holes 12 are long holes;

[0048] The socket A end 8 and the socket B end 9 of two adjacent guide rail units are plugged into each other (the arc protrusions 11 of the socket A end are inserted into the corresponding arc grooves 10 of the socket B end 9, and the arc protrusions 11 of the socket B end are inserted into the corresponding arc grooves 10 of the socket A end 8), and the hinge hole 12 passes through the hinge rod 13, the lower end of the hinge rod 13 has an external thread and is threadedly connected with a fastening nut 14 (preferably two fastening bolts are provided for tight fit to prevent loosening), and the top of the hinge rod 13 is provided with the suspension device.

[0049] The hinge hole 12 is preferably a long hole (such as a runway-shaped hole) rather than a round hole, so that a certain amount of movement can be left for the hinge rod 13 to adapt to the gap change caused by the movement of the hydraulic support.

[0050] The arc groove 10 and the arc convex part 11 of the socket A end 8 and the socket B end 9 are plugged into each other and are rotatably connected through the hinge rod 13. The connection is firm and does not prevent the two from rotating at a certain angle. The arrangement of the socket A end 8 and the socket B end 9 and the hinge rod 13 allows the guide rail to be not a straight line in the length direction, but can be curved according to the specific structure of the hydraulic support in the working environment, so that the utility model has strong adaptability and can adapt to different underground working environments and different shapes of hydraulic supports.

[0051] The suspension device includes a U-shaped seat 15 which is integrally arranged with or fixedly connected to the hinge rod 13. The U-shaped seat 15 opens upward and is used to insert the support ring of the hydraulic support into it. The U-shaped seat 15 is penetrated by a horizontally arranged suspension bolt 16, which passes through the support ring of the hydraulic support.

[0052] The suspension device has a simple structure and a strong bearing capacity, and can conveniently and reliably suspend the utility model on the support ring of the hydraulic support.

[0053] The slide block 4 has a hollow inner cavity 17, and an inverted T-shaped groove adapted to the middle plate 5 and the bottom plate 7 of the guide rail body is provided on the upper part of the slide block 4. The inverted T-shaped groove includes a vertical groove located at the upper part of the slide block 4 and a horizontal groove located in the middle part of the slide block 4. The groove wall of the vertical groove is slidably matched with the middle plate 5, and the top wall of the horizontal groove is pressed downward on the bottom plate 7 of the guide rail body and slidably matched with the bottom plate 7.

[0054] The inverted T-shaped groove is communicated with the inner cavity of the slide rail block 4 , a horizontal shaft 18 is installed in the inner cavity below the inverted T-shaped groove, a concave wheel 19 is installed on the horizontal shaft 18 , and the upper end of the steel wire rope 1 is connected to the concave wheel 19 .

[0055] The slide rail block 4 is slidably connected with the guide rail through an inverted T-shaped groove and is carried on the guide rail, and has a firm structure and is easy to install. The upper end of the steel wire rope 1 is connected to the concave wheel 19, and the connection is more stable and will not be separated from the concave wheel 19.

[0056] The vertical cross section of the buckle part 2 of the support mechanism is in the shape of a ], that is, a groove shape with an opening at the rear end, and also a rectangle with a missing edge at the rear end. The top surface of the buckle part 2 is provided with a plurality of lower hanging rings 20 corresponding to each wire rope 1; the lower end of the wire rope 1 is connected to the lower hanging ring 20; the buckle part 2 is used to buckle at the front of the coal mining machine.

[0057] The ]-shaped buckle part 2 is convenient for buckling on the front of the coal mining machine to withstand the pressure of the coal mining machine on the coal wall, and is also convenient for hanging on the hydraulic support through the wire rope 1 and the traction mechanism.

[0058] The supporting structure includes a main supporting column 21 vertically connected to the front side surface of the buckle part 2, and the front part of the main supporting column 21 is connected to an auxiliary supporting column 22 arranged obliquely backward and downward; the main supporting column 21 is connected to the front side surface of the buckle part 2 backward through a main force-bearing seat 23, and the auxiliary supporting column 22 is connected to the front side surface of the buckle part 2 backward through an auxiliary force-bearing seat 24; the main force-bearing seat 23 and the auxiliary force-bearing seat 24 are both trumpet-shaped with a small front and a large rear (the rear ends of the main force-bearing seat 23 and the auxiliary force-bearing seat 24 are both curved surfaces where they connect with the front side surface of the buckle part 2); the main supporting column 21 and the auxiliary supporting column 22 form a Y-shaped support.

[0059] The front end of the main support column 21 is connected forwardly with an insertion block 25, and the insertion block 25 is provided with a through hole which is transparent from top to bottom;

[0060] A socket 26 matching the insertion block 25 is provided on the rear surface of the support top plate 3, and an opening is provided on the socket 26 corresponding to the through hole on the insertion block 25; the insertion block 25 is inserted into the socket 26, and a pin 27 is inserted into the through hole of the insertion block 25 and the corresponding opening on the socket 26, so as to connect the main support column 21 with the support top plate 3; a positioning bolt 28 is passed through the portion of the bottom end of the pin 27 extending out of the socket 26, and the positioning bolt 28 limits the pin 27 at the socket 26 and the insertion block 25;

[0061] The pin 27, the positioning bolt 28, the main support column 21, the auxiliary support column 22, the socket 26 and the insertion block 25 form a group of the support structures, and a support top plate 3 is connected to the front surface of the buckle part 2 through three groups of the support structures; two support top plates 3 are arranged side by side at intervals.

[0062] The main force bearing seat 23 and the auxiliary force bearing seat 24 are both trumpet-shaped with a small front and a large rear, which reduces the pressure between the main support column 21 and the front surface of the buckle 2, and also reduces the pressure between the auxiliary support column 22 and the front surface of the buckle 2, thereby improving the structural strength of the support mechanism. The support structure has high strength and can withstand the tight pressure on the coal wall formed by the weight of the coal mining machine, and is not easy to be damaged.

[0063] The utility model also discloses a method for using the auxiliary support device of the coal mining machine suitable for steep slope mining, which is carried out according to the following steps:

[0064] The first step is to install the guide rail; according to the length of the working surface, a matching number of guide rail units are connected in sequence to form the guide rail, ensuring that the length of the guide rail matches the length of the working surface; the number of slide rail blocks 4 and wire ropes 1 are determined accordingly; the slide rail blocks 4 are slid along the left-right direction (the horizontal direction perpendicular to the front-back direction is the left-right direction) to connect to the bottom plate 7 of the guide rail body, so that the slide rail blocks 4 correspond to the guide rail units one by one;

[0065] When installing the guide rail, the support rings of the hydraulic support are correspondingly placed in the U-shaped seat 15 of the suspension device, and then the suspension bolts 16 are inserted, and the guide rail is suspended by the suspension bolts 16;

[0066] The second is to connect the steel wire rope 1 and the supporting mechanism; connect the upper end of each steel wire rope 1 to the concave wheel 19 in the corresponding slide rail block 4, and connect the lower end of each steel wire rope 1 to the corresponding lower lifting ring 20;

[0067] The third is to press the supporting roof 3 against the coal wall of the working face;

[0068] When the coal mining machine is mining normally, its weight is borne by the coal mining machine's body frame and traveling mechanism (the guide shoe is part of the coal mining machine's traveling mechanism);

[0069] When the coal mining machine is mining at a large slope, the weight of the coal mining machine causes the supporting roof plate 3 to be pressed tightly against the coal wall of the working face due to the effect of the slope, and the upward suspension force of the wire rope 1 shares the weight of the coal mining machine, thereby reducing the force on the supporting roof plate 3.

[0070] When the coal mining machine is mining at a large slope, a tension adjusting device is installed on each steel wire rope 1. The tension adjusting device is used to adjust the suspension force of the steel wire rope 1 on the buckle 2, thereby adjusting the ratio of the suspension force of the steel wire rope 1 and the tightening pressure of the supporting roof 3 on the coal wall of the working face, so as to reasonably distribute the force distribution and enhance the overall force bearing performance.

[0071] The tension adjustment device is a prior art and will not be described in detail. The simplest tension adjustment device is to tie a knot on the wire rope 1 and insert a lever, and rotate the lever to make the wire rope 1 repeatedly wrap around the knot, which will shorten the length of the wire rope 1 and increase the tension on the wire rope 1, increase the suspension force and reduce the tight pressure of the supporting roof 3 on the coal wall of the working face.

[0072] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An auxiliary support device for a coal mining machine suitable for steep slope mining, used for a coal mining machine, a hydraulic support for supporting the working space is provided in the working space of the coal mining machine, a support ring is provided on the top of the hydraulic support, and the direction toward the coal wall is the forward direction, and the characteristics are: It includes a traction mechanism, the traction mechanism has a suspension device for suspending upward on the bracket eye, and the traction mechanism has a steel wire rope for suspending the support mechanism downward; The supporting mechanism includes a buckling part for buckling with the front end of the coal mining machine. The buckling part is connected to a supporting top plate through a supporting structure. The supporting top plate is used to press the coal wall forward and bear part of the weight of the coal mining machine.

2. The auxiliary support device for coal mining machine suitable for steep slope mining according to claim 1, characterized in that: The traction mechanism includes a guide rail, which is composed of a plurality of guide rail units, and adjacent guide rail units are rotatably connected; a suspension device is arranged on the top of the guide rail; Each guide rail unit is slidably supported by a slide rail block, and each slide rail block is downwardly connected to one of the steel wire ropes.

3. The auxiliary support device for coal mining machine suitable for steep slope mining according to claim 2 is characterized in that: The guide rail unit includes a guide rail body, which is an I-beam structure as a whole. The guide rail body includes a middle plate, a top plate and a bottom plate. The two ends of the guide rail body are respectively a socket A end and a socket B end, and the socket A ends of adjacent guide rail units are plugged and matched with the socket B ends; the socket A end is alternately provided with arc grooves and arc protrusions from top to bottom, and the socket B end is alternately provided with arc protrusions and arc grooves adapted to the socket A end from top to bottom; each arc protrusion of the socket A end and the socket B end is provided with corresponding hinge holes, and the hinge holes are long holes; The socket A end and the socket B end of two adjacent guide rail units are plugged into each other and a hinge rod passes through the hinge hole. The lower end of the hinge rod has an external thread and is threadedly connected with a fastening nut. The top end of the hinge rod is provided with the suspension device.

4. The auxiliary support device for coal mining machine suitable for steep slope mining according to claim 3 is characterized in that: The suspension device comprises a U-shaped seat which is integrally arranged with or fixedly connected to the hinged rod, the U-shaped seat opening faces upward and is used to insert the support ring of the hydraulic support into the U-shaped seat. A horizontally arranged suspension bolt is passed through the U-shaped seat, and the suspension bolt passes through the support ring of the hydraulic support.

5. The auxiliary support device for coal mining machine suitable for steep slope mining according to claim 3 is characterized by: The slide block has a hollow inner cavity, and an inverted T-shaped groove adapted to the middle plate and the bottom plate of the guide rail body is provided on the upper part of the slide block. The inverted T-shaped groove includes a vertical groove located at the upper part of the slide block and a horizontal groove located in the middle part of the slide block. The groove wall of the vertical groove is slidably matched with the middle plate, and the top wall of the horizontal groove is pressed downwardly on the bottom plate of the guide rail body and slidably matched with the bottom plate. The inverted T-shaped groove is communicated with the inner cavity of the slide rail block, a horizontal shaft is installed in the inner cavity below the inverted T-shaped groove, a concave wheel is installed on the horizontal shaft, and the upper end of the wire rope is connected to the concave wheel.

6. The auxiliary support device for coal mining machine suitable for steep slope mining according to claim 1, characterized in that: The vertical section of the buckling part of the support mechanism is in the shape of ]; the top surface of the buckling part is provided with a plurality of lower hanging rings corresponding to each steel wire rope; the lower end of the steel wire rope is connected to the lower hanging ring; the buckling part is used to buckle on the front of the coal mining machine.

7. The auxiliary support device for coal mining machine suitable for steep slope mining according to claim 1, characterized in that: The support structure comprises a main support column vertically connected to the front side surface of the buckle part, and the front part of the main support column is connected to an auxiliary support column arranged obliquely backward and downward; the main support column is connected to the front side surface of the buckle part backward through a main force-bearing seat, and the auxiliary support column is connected to the front side surface of the buckle part backward through an auxiliary force-bearing seat; the main force-bearing seat and the auxiliary force-bearing seat are both trumpet-shaped with a small front and a large rear; The front end of the main support column is connected forwardly with an insertion block, and the insertion block is provided with a through hole that is transparent from top to bottom; A socket matching the insertion block is provided on the rear surface of the support top plate, and an opening is provided on the socket corresponding to the through hole on the insertion block; the insertion block is inserted into the socket, and pins are inserted into the through hole of the insertion block and the opening on the corresponding socket, thereby connecting the main support column and the support top plate together; a positioning bolt is passed through the portion of the bottom end of the pin extending out of the socket, and the positioning bolt confines the pin at the socket and the insertion block; The pins, positioning bolts, main support columns, auxiliary support columns, sockets and insert blocks form a group of the support structures. A support top plate is connected to the front surface of the buckle portion through three groups of the support structures. Two support top plates are arranged side by side at intervals.

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