Supporting mechanism with range convenient to adjust for miner-bolter

Abstract

The utility model belongs to the technical field of bolter miners, and discloses a bolter miner supporting mechanism convenient in range adjustment, which comprises a frame component used for connecting and fixing the bolter miner and extending outwards to expand the supporting width, and a lifting component mounted on the frame component and used for adjusting the supporting height in a closed and telescopic manner, the top ends of the lifting assemblies are provided with pushing assemblies used for supporting the middle and the two ends of the top of a mine, and the multiple lifting assemblies are evenly arranged and distributed in the middle and the two ends of the rack assembly respectively. According to the supporting mechanism with the range convenient to adjust for the driving and bolting machine, the middle of the top of a mine hole is supported through inflation expansion, so that the fitness of pushing and supporting the middle of the top of the mine hole is guaranteed, and the stress uniformity is improved; arrangement of the two ends of the top of the supporting mine hole is adjusted through spherical hinges, and the attaching performance of the two ends of the top of the pushing supporting mine hole is improved; and through the closed telescopic arrangement of the sliding sleeve, the protection on the hydraulic cylinder is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchor diggers, in particular to a support mechanism for anchor diggers with a convenient adjustment range. Background Art

[0002] The main functions of a bolter miner include excavation, loading, drilling, and support. Bolter miner support structures are a crucial component of coal mine tunneling operations, designed to simultaneously support construction, effectively prevent tunnel collapse, and protect workers during construction.

[0003] The Chinese patent with the comparison announcement number CN219139089U discloses a supporting structure for an anchor mining machine, including: a support mounting seat, a second hydraulic cylinder is installed on the upper end of which; a second support connecting plate, which is connected to the output end of the second hydraulic cylinder; first through holes, which are evenly spaced at the front end of the second support connecting plate; a sliding groove, which is opened at the left end of the second support connecting plate; a support plate connecting block, which is movably connected to the inside of the second support connecting plate, and the support plate connecting block is matched with the sliding groove; a second through hole, which is opened on the upper side of the front end of the support plate connecting block, and the second through hole is adapted to the first through hole; a support frame, which is installed at the upper end of the second support connecting plate; a support plate, which is arranged at one end of the support plate connecting block; a first hydraulic cylinder, which is installed at the front end of the support mounting seat; and a first support connecting plate, which is connected to the output end of the first hydraulic cylinder.

[0004] However, the above patent has rigid supports in the middle and at both ends, which cannot ensure that it completely fits the top of the mine for support, and the hydraulic cylinder is exposed and easily worn by small gravel, so a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a support mechanism for an anchor miner with an easily adjustable range, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A support mechanism with an easily adjustable range for an anchor miner includes a frame assembly for connecting the anchor miner, fixing it and extending it outward to expand the support width, and also includes a lifting assembly installed on the frame assembly for closed telescopic adjustment of the support height, a top of the lifting assembly is installed with a pushing assembly for supporting the middle and both ends of the mine top, and a plurality of lifting assemblies are evenly arranged and distributed in the middle and both ends of the frame assembly; the lifting assembly includes a second inner guard cover, a second outer guard cover is provided on the top of the second inner guard cover, a second hydraulic cylinder is installed in the second inner guard cover, and the second outer guard cover is slidably sleeved on the outer top of the second inner guard cover; the pushing assembly includes an intermediate structure for inflating and supporting the middle of the mine top and an end structure for adjusting the support at both ends of the mine top with a ball joint.

[0008] Furthermore, the frame assembly includes a connecting structure, two first outer shields are symmetrically installed in front of the connecting structure, a first inner shield is slidably installed at one end of the first outer shield, and a first hydraulic cylinder is installed in the first inner shield.

[0009] Furthermore, the connection structure includes a fixing frame, a plurality of reinforcing ribs are evenly distributed in the middle of the fixing frame, and a plurality of mounting holes are evenly distributed at the bottom of the fixing frame.

[0010] Furthermore: the intermediate structure includes a supporting box, an air bag is pasted in the middle of the supporting box, and an air inlet and outlet joint is provided at the bottom of the supporting box.

[0011] Furthermore: the end structure includes a ball joint seat, a ball joint head is installed in the ball joint seat, and a bearing tray is provided on the ball joint head.

[0012] Furthermore: the supporting box is rectangular.

[0013] Furthermore: the supporting tray is circular and made of 45 steel.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. The setting of the middle part of the mine top is supported by inflation, which ensures the fit of the top part of the mine top and improves the uniformity of the force.

[0016] 2. The ball joint is used to adjust the settings of the two ends of the mine top, which improves the fit of the top ends of the mine top;

[0017] 3. The closed telescopic setting of the sliding sleeve increases the protection of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a support mechanism for an anchor miner with an easily adjustable range according to the utility model;

[0019] Figure 2 This is a front isometric view of a frame assembly of a support mechanism with an adjustable range for an anchor miner according to the present invention;

[0020] Figure 3 This is a rear isometric view of a frame assembly of a support mechanism with an easily adjustable range for an anchor miner according to the present invention;

[0021] Figure 4 This is a front sectional view of a lifting assembly of a support mechanism with an easily adjustable range for an anchor miner according to the utility model;

[0022] Figure 5 It is a schematic diagram of a jacking assembly of a support mechanism with an easily adjustable range for an anchor miner described in the utility model.

[0023] In the accompanying drawings, numerals indicate: 101, fixing frame; 102, first outer protective cover; 103, first inner protective cover; 104, first hydraulic cylinder; 105, reinforcing rib; 106, mounting hole; 201, second inner protective cover; 202, second outer protective cover; 203, second hydraulic cylinder; 301, supporting box; 302, air bag; 303, air inlet and outlet joints; 304, ball joint seat; 305, ball joint head; 306, supporting tray. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 A support mechanism with an easily adjustable range for an anchor miner includes a frame assembly for connecting the anchor miner and fixing it and extending the support width. It also includes a lifting assembly installed on the frame assembly for closed telescopic adjustment of the support height. A pushing assembly for supporting the middle and both ends of the mine top is installed on the top of the lifting assembly. Several lifting assemblies are evenly arranged and distributed in the middle and both ends of the frame assembly.

[0026] In this embodiment, the frame assembly includes a connecting structure, with two first outer shields 102 symmetrically mounted on the front of the connecting structure. A first inner shield 103 is slidably mounted on one end of the first outer shield 102, and a first hydraulic cylinder 104 is mounted within the first inner shield 103. The connecting structure includes a fixing frame 101, with a plurality of reinforcing ribs 105 evenly distributed throughout the middle of the fixing frame 101 and a plurality of mounting holes 106 evenly distributed at the bottom of the fixing frame 101. The fixing frame 101 is fixed to the anchor miner by bolts passing through the mounting holes 106. The reinforcing ribs 105 increase the strength of the fixing frame 101. During support, the first hydraulic cylinder 104 within the first outer shield 102 supported by the fixing frame 101 extends, pushing the first inner shield 103 outward, and driving the second inner shields 201 at both ends away.

[0027] In this embodiment, the lifting assembly includes a second inner shield 201, a second outer shield 202 is provided on the top of the second inner shield 201, a second hydraulic cylinder 203 is installed in the second inner shield 201, and the second outer shield 202 is slidably sleeved on the outer top of the second inner shield 201; the second inner shield 201 supports the second hydraulic cylinder 203 to push the second outer shield 202 up to adjust the support height;

[0028] In this embodiment: the pushing assembly includes an intermediate structure for inflating and supporting the middle of the mine cave top and an end structure for adjusting the ball joint to support the two ends of the mine cave top; the intermediate structure includes a supporting box 301, the supporting box 301 is rectangular, an air bag 302 is pasted in the middle of the supporting box 301, and an air inlet and outlet joint 303 is provided at the bottom of the supporting box 301; the end structure includes a ball joint seat 304, a ball joint head 305 is installed in the ball joint seat 304, and a supporting tray 306 is provided on the ball joint head 305. The supporting tray 306 is circular and made of 45 steel; the ball joint seat 304 pushes the supporting tray 306 to rise through the ball joint head 305, pushing and supporting the two ends of the mine cave top, and the supporting box 301 is close to the middle of the mine cave top, and then inflates the air bag 302 through the air inlet and outlet joints 303, so that the air bag 302 expands and pushes to support the middle of the mine cave top.

[0029] Working principle: The fixed frame 101 is fixed to the bolter by bolts passing through the mounting holes 106, and the reinforcing ribs 105 increase the strength of the fixed frame 101. During support, the first hydraulic cylinder 104 in the first outer guard 102 supported by the fixed frame 101 extends, pushing the first inner guard 103 to extend outward, driving the second inner guards 201 at both ends away, and then the second inner guard 201 supports the second hydraulic cylinder 203 to push the second outer guard 202 up, so that the ball joint seat 304 pushes the support tray 306 to rise through the ball joint head 305, pushing and supporting the two ends of the mine top, and then the second hydraulic cylinder 203 in the middle of the fixed frame 101 pushes the support box 301 close to the middle of the mine top, and then inflates the air bag 302 through the air inlet and outlet joints 303, so that the air bag 302 expands and pushes and supports the middle of the mine top.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support mechanism for an anchor miner with an easily adjustable range, comprising a frame assembly for connecting and fixing the anchor miner and extending outward to expand the support width, characterized in that: It also includes a lifting assembly installed on the frame assembly for closed telescopic adjustment of the support height, and a top push assembly for supporting the middle and both ends of the mine top is installed on the top of the lifting assembly. There are several lifting assemblies evenly arranged, respectively distributed in the middle and both ends of the frame assembly; The lifting assembly comprises a second inner shield (201), a second outer shield (202) is provided on the top of the second inner shield (201), a second hydraulic cylinder (203) is installed in the second inner shield (201), and the second outer shield (202) is slidably sleeved on the outer top of the second inner shield (201); The pushing assembly comprises a middle structure for inflating and supporting the middle of the mine cave top and an end structure for adjusting and supporting the two ends of the mine cave top through a spherical joint.

2. The support mechanism with easily adjustable range for an anchor miner according to claim 1, characterized in that: The frame assembly comprises a connecting structure, wherein two first outer shields (102) are symmetrically mounted in front of the connecting structure, a first inner shield (103) is slidably mounted on one end of the first outer shield (102), and a first hydraulic cylinder (104) is mounted in the first inner shield (103).

3. The support mechanism with easily adjustable range for an anchor miner according to claim 2, characterized in that: The connection structure comprises a fixing frame (101), a plurality of reinforcing ribs (105) are evenly distributed in the middle of the fixing frame (101), and a plurality of mounting holes (106) are evenly distributed at the bottom of the fixing frame (101).

4. The support mechanism with easily adjustable range for an anchor miner according to claim 1, characterized in that: The intermediate structure comprises a supporting box (301), an air bag (302) is adhered to the middle of the supporting box (301), and an air inlet and outlet joint (303) is provided at the bottom of the supporting box (301).

5. The support mechanism with easily adjustable range for an anchor miner according to claim 1, characterized in that: The end structure comprises a ball joint seat (304), a ball joint head (305) is installed in the ball joint seat (304), and a bearing tray (306) is provided on the ball joint head (305).

6. The support mechanism with easily adjustable range for an anchor miner according to claim 4, characterized in that: The supporting box (301) is rectangular.

7. The support mechanism with easily adjustable range for an anchor miner according to claim 5, characterized in that: The support tray (306) is circular and made of 45 steel.

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