Thin coal seam scraper machine cushion frame and thin coal seam working face end equipment

Abstract

The thin coal seam scraper machine cushion frame comprises a base, a top seat, a guide assembly and a plurality of jacks, the top seat is arranged above the base, the top seat and the base are arranged in a spaced mode, the top seat is provided with a connecting part used for being connected with a scraper machine head, the guide assembly is arranged between the base and the top seat, and the jacks are connected with the guide assembly. The bottom end of the guide assembly is fixedly connected with the base, the top end of the guide assembly is in spherical hinge with the top seat, the guide assembly can be telescopically adjusted and can be kept at the telescopically adjusted position, the jacks are arranged between the base and the top seat and are arranged at intervals in the circumferential direction of the guide assembly, and the bottom end of each jack is fixedly connected with the base. And the top end of each jack is spherically hinged with the top seat. According to the thin coal seam scraper machine cushion frame, the up-down position and the inclined position of a scraper machine head can be adjusted, the overall adjusting efficiency is high, and the use requirement of thin coal seam mining is fully met.

Description

Technical Field

[0001] The invention relates to the technical field of thin coal seam mining, in particular to a thin coal seam scraper support frame and a thin coal seam working face end head device. Background Art

[0002] Thin coal seams are recognized as complex and difficult to mine due to factors such as narrow space, difficulty in equipment matching and roof management. Mining equipment for thin coal seams usually includes scraper conveyors, transfer machines, crushers, etc. In order to achieve the transfer between scraper conveyors and transfer machines, a head pad is required at the head of the scraper conveyor to achieve padding. However, in actual use, due to the ups and downs of the working face bottom plate and the tunnel bottom plate, the head of the scraper has problems such as up and down displacement and deflection during use, and the head pad in the prior art cannot meet the use needs of the position correction and adjustment of the head. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes a thin coal seam scraper pad frame, which can adjust the up and down position and tilt position of the scraper head, and has a high overall adjustment efficiency, fully meeting the use needs of thin coal seam mining.

[0005] The embodiment of the present invention further provides a thin coal seam working face end head device including the above-mentioned thin coal seam scraper pad frame.

[0006] The thin coal seam scraper support frame of the embodiment of the present invention comprises: Base; A top seat, the top seat is arranged above the base and spaced apart from the base, and the top seat is provided with a connecting portion for connecting with a scraper head; A guide assembly, wherein the guide assembly is disposed between the base and the top seat, the bottom end of the guide assembly is fixedly connected to the base, the top end of the guide assembly is spherically jointed with the top seat, and the guide assembly can be telescopically adjusted and can be maintained at a position after the telescopic adjustment; A plurality of jacks are provided between the base and the top seat and are spaced apart along the circumference of the guide assembly, the bottom end of each jack is fixedly connected to the base, and the top end of each jack is ball-jointed with the top seat.

[0007] In some embodiments, the support frame of the thin coal seam scraper includes a pin shaft, the guide assembly includes a guide block and a guide cylinder, the guide cylinder is fixedly connected to the base, the guide block is slidably assembled in the guide cylinder, and the guide block and the top seat are spherically hinged; The guide block is provided with a plurality of first holes arranged at intervals along the sliding direction of the guide block, and the guide cylinder is provided with a plurality of second holes arranged at intervals along the sliding direction. The extension direction of the first holes is consistent with the extension direction of the second holes, and the pin shaft is used to be inserted into the first hole and the second hole at the same time to keep the guide assembly in the position after telescopic adjustment.

[0008] In some embodiments, the width dimension of the apertures of the first hole and the second hole in the horizontal direction is greater than the height dimension in the vertical direction, and the width dimension of the pin shaft in the horizontal direction is greater than the thickness dimension in the vertical direction.

[0009] In some embodiments, a convex portion is provided on the bottom side of the top seat, the surface of the convex portion is a spherical surface, and a first ball socket is provided on the top of the guide block, and the convex portion fits into the first ball socket.

[0010] In some embodiments, a plurality of column caps are provided on the bottom side of the top seat, and the plurality of column caps are arranged at intervals along the circumference of the protrusion, a second ball socket is provided in the column cap, and a sphere is provided at the top end of the jack, and the sphere fits in the second ball socket.

[0011] In some embodiments, a plurality of fixing seats are provided on the top side of the base, and the plurality of fixing seats and the plurality of column caps are arranged one by one opposite to each other in the up and down directions. The jack comprises an outer cylinder and a piston. The outer cylinders of the plurality of jacks are connected and fixed to the plurality of fixing seats, and the piston of each jack is provided with the sphere.

[0012] In some embodiments, the connecting portion includes two ear plates, which are arranged opposite to each other in the extension direction of the first hole, and the height dimension of each ear plate first increases and then decreases in a direction orthogonal to the extension direction of the first hole. The top seat is connected to the scraper head through the two ear plates, and a third hole is provided on the ear plate, and the third hole is provided in the middle of the extension direction of the ear plate, and the extension direction of the third hole is consistent with the extension direction of the first hole.

[0013] In some embodiments, there are three jacks, including a first jack and two second jacks. When in use, the two second jacks are both located behind the first jack, the first jack and the guide assembly are both located at the symmetrical center of the top seat, and the two second jacks are symmetrically arranged with respect to the first jack and the guide assembly.

[0014] The thin coal seam working face end head equipment of an embodiment of the present invention includes a thin coal seam scraper pad frame as described in any of the above embodiments, wherein the thin coal seam scraper pad frame is arranged in a tunnel connected to the working face, the roof of the tunnel is flush with the roof of the working face, and the bottom plate of the tunnel is lower than the bottom plate of the working face.

[0015] In some embodiments, the thin coal seam working face end equipment includes: A scraper conveyor, the scraper conveyor comprising a scraper head, the scraper head being arranged in the tunnel, the extension direction of the scraper head being arranged perpendicular to the working surface, and the thin coal seam scraper support frame being supported and fixed at the bottom of the scraper head; A transfer machine is arranged in the tunnel and is located on the side of the thin coal seam scraper frame away from the working surface. The transfer machine is lower than the scraper conveyor and is used to receive the coal and rock dropped from the scraper conveyor.

[0016] Beneficial effects: The thin coal seam scraper pad frame and thin coal seam working face end head equipment of the embodiments of the present invention, the thin coal seam scraper pad frame can adjust the up and down position and tilt position of the scraper head, and the overall adjustment efficiency is high, which fully meets the use needs of thin coal seam mining. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the thin coal seam scraper frame of the embodiment of the present invention is a three-dimensional schematic diagram Figure 1 .

[0018] Figure 2 The overall structure of the thin coal seam scraper frame of the embodiment of the present invention is a three-dimensional schematic diagram Figure 2 .

[0019] Figure 3 It is a rear side schematic diagram of a thin coal seam scraper pad frame according to an embodiment of the present invention.

[0020] Figure 4 It is a rear side schematic diagram of a thin coal seam working face end head device according to an embodiment of the present invention.

[0021] Figure 5 It is a top view schematic diagram of a thin coal seam working face end head device according to an embodiment of the present invention.

[0022] Reference numerals: 100-scraper pad frame; 1-base; 11-fixed seat; 2-top seat; 21-connecting part; 211-ear plate; 212-third hole; 22-convex part; 23-column cap; 3-guide assembly; 31-guide block; 311-first hole; 32-guide cylinder; 321-second hole; 4- jack; 41- first jack; 42- second jack; 43- plunger; 44- outer cylinder; 5-pin shaft; 200-alleyway; 300-transfer machine; 400-scraper joint. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] like Figure 1 As shown, the thin coal seam scraper support frame 100 of the embodiment of the present invention includes a base 1, a top seat 2, a guide assembly 3 and a plurality of jacks 4.

[0025] The base 1 can be a flat plate structure, for example, the base 1 can be a rectangular steel plate, etc. When in use, the base 1 can be directly placed on the bottom plate of the tunnel 200, thereby playing the role of bottom support and avoiding the situation where the downward force is too large.

[0026] The top seat 2 is arranged above the base 1 and spaced apart from the base 1, and the top seat 2 is provided with a connection portion 21 for connecting with the scraper head. Figure 1 As shown, the top seat 2 can also be substantially in the shape of a rectangular plate, and the shape of the top seat 2 can be substantially the same as that of the base 1, and the top seat 2 can be located directly above the base 1. When in use, the thin coal seam scraper pad 100 can be installed under the scraper head, and the top seat 2 can be connected and fixed to the scraper head through connectors such as pins.

[0027] The guide assembly 3 is arranged between the base 1 and the top seat 2, the bottom end of the guide assembly 3 is fixedly connected to the base 1, the top end of the guide assembly 3 and the top seat 2 are ball-jointed, and the guide assembly 3 can be telescopically adjusted and can be maintained in the position after telescopic adjustment.

[0028] For example, Figure 1 As shown, the guide assembly 3 can be a structural component with telescopic function such as a telescopic sleeve. The guide assembly 3 extends in the up-down direction as a whole. The top end of the guide assembly 3 can be directly connected to the bottom ball joint of the top seat 2, and the bottom end of the guide assembly 3 can be connected and fixed to the base 1 by welding, fastener fixing, etc. The setting of the guide assembly 3 can enhance the limiting constraint effect, thereby ensuring the stability of the overall structure of the cushion frame.

[0029] When in use, the guide assembly 3 can be telescopically adjusted as needed, and after the guide assembly 3 is telescopically adjusted, the guide assembly 3 can be locked by a limiter or the like, so that the guide assembly 3 can be maintained in the shape after the telescopic adjustment.

[0030] A plurality of jacks 4 are disposed between the base 1 and the top seat 2 and are arranged at intervals along the circumference of the guide assembly 3, for example, Figure 1 As shown, three jacks 4 may be provided, and the three jacks 4 generally extend in the up-down direction. The bottom end of each jack 4 is fixedly connected to the base 1 , and the top end of each jack 4 is spherically jointed with the top seat 2 .

[0031] When in use, each jack 4 can be freely extended and retracted under the action of hydraulic pressure, so that the height of the top seat 2 can be adjusted. Secondly, the inclination angle of the top seat 2 can be adjusted by adjusting each jack 4 to different extension and retraction amounts, thereby simultaneously satisfying the correction adjustment of the height position and inclination direction of the scraper head.

[0032] In some embodiments, the thin coal seam scraper support frame 100 includes a pin shaft 5, and the guide assembly 3 includes a guide block 31 and a guide cylinder 32, and the guide cylinder 32 is fixedly connected to the base 1, for example, Figure 1 and Figure 2 As shown, the guide block 31 can be a cubic column structure, the guide cylinder 32 can be a square cylinder structure, the guide cylinder 32 can be fixed at the center position of the base 1 by welding, the guide block 31 is slidably assembled in the guide cylinder 32, and the guide block 31 and the top seat 2 are ball-jointed. When in use, the telescopic adjustment of the guide assembly 3 can be achieved through the relative sliding of the guide block 31 relative to the guide cylinder 32.

[0033] The guide block 31 is provided with a plurality of first holes 311 arranged at intervals along the sliding direction of the guide block 31, and the guide cylinder 32 is provided with a plurality of second holes 321 arranged at intervals along the sliding direction. The extension direction of the first hole 311 is consistent with the extension direction of the second hole 321, and the pin shaft 5 is used to be inserted into the first hole 311 and the second hole 321 at the same time to keep the guide assembly 3 in the position after telescopic adjustment.

[0034] For example, Figure 2 As shown, the guide block 31 is provided with a plurality of first holes 311 , which can be arranged at equal intervals along the up and down direction; the guide cylinder 32 is provided with a plurality of second holes 321 , which can be arranged at equal intervals along the up and down direction.

[0035] After the guide block 31 is slidably adjusted relative to the guide cylinder 32, the pin 5 can be inserted into the first hole 311 and the second hole 321 at the same time, so that the sliding locking of the guide block 31 relative to the guide cylinder 32 can be achieved by the stop limit of the pin 5, so that the guide assembly 3 can be maintained in the state after telescopic adjustment, thereby meeting the need for supporting the top seat 2.

[0036] It should be noted that there can be multiple pins 5. When the guide assembly 3 is telescopically adjusted, the multiple pins 5 can be respectively inserted into the corresponding first holes 311 and second holes 321, thereby fully ensuring the overall shear strength of the structure.

[0037] In some embodiments, Figure 2 As shown, the first hole 311 and the second hole 321 can both be long holes, and the first hole 311 and the second hole 321 can both be arranged horizontally and extend in the horizontal direction. The width dimension of the aperture of the first hole 311 and the second hole 321 in the horizontal direction is greater than the height dimension in the vertical direction, and the width dimension of the pin 5 in the horizontal direction is greater than the thickness dimension in the vertical direction. Therefore, since the guide block 31 and the guide cylinder 32 need to have a high shear resistance, this structural arrangement fully meets the use requirements of shear resistance.

[0038] In some embodiments, a convex portion 22 is provided on the bottom side of the top seat 2, and the surface of the convex portion 22 is a spherical surface. A first ball socket is provided on the top of the guide block 31, and the convex portion 22 fits in the first ball socket.

[0039] For example, Figure 2 As shown, the convex portion 22 can be integrally formed at the center of the bottom side of the top seat 2. The convex portion 22 can be generally a hemispherical structure. The top of the guide block 31 can be provided with a hemispherical groove, which is the first ball socket. During assembly, the convex portion 22 can be directly embedded in the first ball socket, thereby achieving the limit constraint of horizontal displacement and allowing the top seat 2 to tilt and swing relative to the guide assembly 3, fully meeting the needs of use.

[0040] In some embodiments, a plurality of column caps 23 are provided on the bottom side of the top seat 2, and the plurality of column caps 23 are arranged at intervals along the circumference of the protrusion 22, a second ball socket is provided in the column cap 23, and a sphere is provided at the top end of the jack 4, and the sphere fits in the second ball socket.

[0041] For example, Figure 2 As shown, three column caps 23 can be provided, and the three column caps 23 can be integrally formed on the bottom side of the top seat 2 and can be adjacent to the corners of the top seat 2. A hemispherical groove can be provided on the bottom side of each column cap 23, and the groove is the second ball socket. A sphere can be provided on the top of the jack 4, and the sphere can be embedded in the second ball socket, thereby realizing the connection between the top seat 2 and the jack 4 on the one hand, and also enabling the top seat 2 to be tilted and swung relative to the jack 4 on the other hand, fully meeting the needs of adjusting the height and tilting position of the top seat 2.

[0042] In some embodiments, a plurality of fixing seats 11 are provided on the top side of the base 1, and the plurality of fixing seats 11 are arranged one by one opposite to the plurality of column caps 23 in the up and down directions. The jack 4 includes an outer cylinder 44 and a piston 43. The outer cylinders 44 of the plurality of jacks 4 are connected and fixed to the plurality of fixing seats 11, and the piston 43 of each jack 4 is provided with a ball.

[0043] For example, Figure 2 As shown, the fixing seat 11 can be generally in a square shape, and the fixing seat 11 can be fixed on the top side of the base 1 by welding and arranged adjacent to the edge of the base 1. In the up and down direction, multiple fixing seats 11 can be arranged one by one opposite to the above-mentioned multiple column caps 23.

[0044] like Figure 2 As shown, each jack 4 may include an outer cylinder 44 and a plunger 43. The outer cylinder 44 may be connected and fixed to the corresponding fixing seat 11 by welding, and the plunger 43 may be slidably assembled in the outer cylinder 44. When in use, the plunger 43 may slide relative to the outer cylinder 44, thereby realizing the pushing and pulling down of the top seat 2.

[0045] In some embodiments, Figure 2 As shown, the connecting portion 21 includes two ear plates 211, and the two ear plates 211 are arranged relatively to each other in the extension direction of the first hole 311, that is, the two ear plates 211 are arranged relatively to each other in the front-to-back direction, and the height dimension of each ear plate 211 first increases and then decreases along a direction orthogonal to the extension direction of the first hole 311, that is, the height dimension of each ear plate 211 presents a trend of first increasing and then decreasing along the direction from left to right.

[0046] The top seat 2 is connected to the scraper head through two ear plates 211. The ear plates 211 are provided with a third hole 212, which is used for pins, shafts, etc. to pass through, so as to facilitate the pivotal assembly of the top seat 2 and the scraper head. The third hole 212 is provided in the middle of the extension direction of the ear plates 211, and the extension direction of the third hole 212 is consistent with the extension direction of the first hole 311. That is, the first hole 311, the second hole 321, and the third hole 212 all extend in the front-to-back direction. This facilitates the assembly and fixation of the above-mentioned pin shaft 5, the top seat 2, and the scraper head from the same side.

[0047] In some embodiments, Figure 2 and Figure 3 As shown, there are three jacks 4, including a first jack 41 and two second jacks 42. When in use, the two second jacks 42 are both arranged behind the first jack 41, the first jack 41 and the guide assembly 3 are both arranged at the symmetrical center of the top seat 2, and the two second jacks 42 are symmetrically arranged with respect to the first jack 41 and the guide assembly 3. This is conducive to ensuring the overall structural stability during use.

[0048] The following describes the thin coal seam working face end head equipment according to an embodiment of the present invention.

[0049] The thin coal seam working face end equipment of the embodiment of the present invention comprises a thin coal seam scraper pad frame 100, which can be a thin coal seam scraper pad frame 100 as described in any of the above embodiments, and the thin coal seam scraper pad frame 100 is arranged in a tunnel 200 connected to the working face, for example, Figure 4 As shown, the tunnel 200 can specifically be a transport tunnel, the top plate of the tunnel 200 is flush with the top plate of the working surface, and the bottom plate of the tunnel 200 is lower than the bottom plate of the working surface.

[0050] Thus, a step can be formed between the bottom plate of the tunnel 200 and the bottom plate of the working surface, so that the subsequent transfer machine 300 and the above-mentioned cushion frame will be lower than the scraper conveyor after being arranged, which is convenient for installation and arrangement. Secondly, the scraper conveyor does not need to be raised as a whole, so that the scraper conveyor is roughly at the same level, avoiding the need to destroy the top plate when raising it, thereby reducing safety accidents caused by the destruction of the top plate.

[0051] Since the scraper conveyor is avoided from being lifted, the coal mining machine does not need to climb a slope, thereby avoiding the need to increase the load of the coal mining machine. Secondly, it also avoids the situation where some bottom coal cannot be recovered and mined during lifting, thereby improving the overall mining rate and resource recovery rate.

[0052] In some embodiments, Figure 4 and Figure 5 As shown, the end equipment of the thin coal seam working face includes a scraper conveyor and a transfer machine 300. The scraper conveyor includes a scraper head. The scraper head is arranged in the tunnel 200. The extension direction of the scraper head is arranged perpendicular to the working face, that is, the scraper head generally extends along the front and rear direction. The thin coal seam scraper pad frame 100 is supported and fixed at the bottom of the scraper head.

[0053] The transfer machine 300 is arranged in the tunnel 200 and is located on the side of the thin coal seam scraper frame 100 away from the working face, that is, the transfer machine 300 is arranged on the right side of the frame. The transfer machine 300 is lower than the scraper conveyor and is used to receive the coal and rock dropped from the scraper conveyor.

[0054] In some embodiments, Figure 4 and Figure 5 As shown, the end equipment of the thin coal seam working face also includes a coal mining machine, an end hydraulic support, a middle hydraulic support, etc. The coal mining machine and the middle hydraulic support are both arranged in the working face, the middle hydraulic support is located behind the coal mining machine, and the end hydraulic support is arranged in the above-mentioned tunnel 200 and behind the above-mentioned transfer machine 300 and the scraper head.

[0055] A specific example of the thin coal seam scraper pad 100 according to an embodiment of the present invention is described below.

[0056] The thin coal seam scraper support frame 100 of the embodiment of the present invention is a 4-DOF device, and the scraper head support frame is composed of a top seat 2, a base 1, a guide block 31, a guide cylinder 32, a jack 4, a fixing pin (which can be regarded as a pin shaft 5), etc.

[0057] The lower edge of the top seat 2 is evenly distributed with three column caps 23, the center is designed with a spherical protrusion (which can be regarded as a convex part 22), and the upper part is designed with two ear plates 211; the upper edge of the base 1 is evenly distributed with three fixing seats 11, the center is welded with a guide cylinder 32, and the guide cylinder 32 is designed with 5 holes of a long pin shaft (which can be regarded as the second hole 321); the upper part of the guide block 31 is designed with a ball socket (the first ball socket), and the middle is distributed with 5 holes of a long pin shaft (which can be regarded as the first hole 311); the top of the piston 43 of the jack 4 is designed to be spherical.

[0058] The head of the scraper is fixedly connected to the head support frame through the ear plate 211 on the top seat 2. The outer cylinders 44 of three jacks 4 are fixed on the fixed seat 11 of the base 1. The outer cylinders 44 of the three jacks 4 cannot move and are completely constrained; the guide block 31 cooperates with the guide cylinder 32 of the base 1 and can have the freedom of up and down movement; the ball socket on the guide block 31 cooperates with the protruding ball on the top seat 2 to form a ball joint; the ball on the live column 43 of the three jacks 4 cooperates with the ball socket (second ball socket) of the column cap 23 on the top seat 2 to form three ball joints; the guide block 31 and the guide cylinder 32 of the base 1 can be fixed by a long strip fixing pin.

[0059] Beneficial effects: The 4-DOF scraper head support frame has 3 rotational degrees of freedom and 1 up and down movement degree of freedom through the cooperation of 3 jacks 4. Therefore, when the distance between the bottom plate of the tunnel 200 and the bottom plate of the working surface changes, it can be quickly adjusted. In addition, when the head is deflected, the posture can also be adjusted; the guide block 31 in the middle of the 4-DOF scraper head support frame and the guide cylinder 32 of the base 1 can be fixed by a long strip fixing pin. When the height is adjusted, it can be supported mechanically, which reduces the force on the jack 4 and makes the overall structure safer and more reliable; the fixing pin and the corresponding pin hole are long strips, have good rigidity, and are safe and stable.

[0060] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A thin coal seam scraper support frame, characterized in that: include: Base; A top seat, the top seat is arranged above the base and spaced apart from the base, and the top seat is provided with a connecting portion for connecting with a scraper head; A guide assembly, wherein the guide assembly is disposed between the base and the top seat, the bottom end of the guide assembly is fixedly connected to the base, the top end of the guide assembly is spherically jointed with the top seat, and the guide assembly can be telescopically adjusted and can be maintained at a position after the telescopic adjustment; A plurality of jacks are provided between the base and the top seat and are spaced apart along the circumference of the guide assembly, the bottom end of each jack is fixedly connected to the base, and the top end of each jack is ball-jointed with the top seat.

2. The thin coal seam scraper support frame according to claim 1, characterized in that: The guide assembly comprises a guide block and a guide cylinder, the guide cylinder is fixedly connected to the base, the guide block is slidably assembled in the guide cylinder, and the guide block and the top seat are spherically hinged; The guide block is provided with a plurality of first holes arranged at intervals along the sliding direction of the guide block, and the guide cylinder is provided with a plurality of second holes arranged at intervals along the sliding direction. The extension direction of the first holes is consistent with the extension direction of the second holes, and the pin shaft is used to be inserted into the first hole and the second hole at the same time to keep the guide assembly in the position after telescopic adjustment.

3. The thin coal seam scraper support frame according to claim 2, characterized in that: The width dimension of the apertures of the first hole and the second hole in the horizontal direction is greater than the height dimension in the vertical direction, and the width dimension of the pin in the horizontal direction is greater than the thickness dimension in the vertical direction.

4. The thin coal seam scraper support frame according to claim 2, characterized in that: A convex portion is provided on the bottom side of the top seat, and the surface of the convex portion is a spherical surface. A first ball socket is provided on the top of the guide block, and the convex portion is matched in the first ball socket.

5. The thin coal seam scraper support frame according to claim 4, characterized in that: A plurality of column caps are arranged at intervals along the circumference of the convex portion on the bottom side of the top seat, a second ball socket is arranged inside the column cap, a sphere is arranged at the top end of the jack, and the sphere fits in the second ball socket.

6. The thin coal seam scraper support frame according to claim 5, characterized in that: A plurality of fixing seats are provided on the top side of the base, and the plurality of fixing seats and the plurality of column caps are arranged one by one opposite to each other in the up and down directions. The jack comprises an outer cylinder and a piston. The outer cylinders of the plurality of jacks are connected and fixed to the plurality of fixing seats, and the piston of each jack is provided with the sphere.

7. The thin coal seam scraper support frame according to claim 2, characterized in that: The connecting portion includes two ear plates, which are arranged opposite to each other in the extension direction of the first hole, and the height dimension of each ear plate first increases and then decreases in a direction orthogonal to the extension direction of the first hole. The top seat is connected to the scraper head through the two ear plates, and a third hole is provided on the ear plate, and the third hole is provided in the middle of the extension direction of the ear plate, and the extension direction of the third hole is consistent with the extension direction of the first hole.

8. The thin coal seam scraper support according to any one of claims 1 to 7, characterized in that: There are three jacks, including a first jack and two second jacks. When in use, the two second jacks are arranged behind the first jack, the first jack and the guide assembly are arranged at the symmetrical center of the top seat, and the two second jacks are arranged symmetrically with respect to the first jack and the guide assembly.

9. A thin coal seam working face end device, characterized in that: It comprises a thin coal seam scraper pad frame as described in any one of claims 1 to 8 above, wherein the thin coal seam scraper pad frame is arranged in a tunnel connected to a working face, the roof of the tunnel is flush with the roof of the working face, and the bottom plate of the tunnel is lower than the bottom plate of the working face.

10. The thin coal seam working face end head equipment according to claim 9, characterized in that: include: A scraper conveyor, the scraper conveyor comprising a scraper head, the scraper head being arranged in the tunnel, the extension direction of the scraper head being arranged perpendicular to the working surface, and the thin coal seam scraper support frame being supported and fixed at the bottom of the scraper head; A transfer machine is arranged in the tunnel and is located on the side of the thin coal seam scraper frame away from the working surface. The transfer machine is lower than the scraper conveyor and is used to receive the coal and rock dropped from the scraper conveyor.

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