CN112096404A - Mining height accurate positioning device of temporary support system of tunneling and anchoring all-in-one machine, tunneling and anchoring all-in-one machine and dismounting and mounting method - Google Patents
Mining height accurate positioning device of temporary support system of tunneling and anchoring all-in-one machine, tunneling and anchoring all-in-one machine and dismounting and mounting method Download PDFInfo
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- CN112096404A CN112096404A CN202010904453.2A CN202010904453A CN112096404A CN 112096404 A CN112096404 A CN 112096404A CN 202010904453 A CN202010904453 A CN 202010904453A CN 112096404 A CN112096404 A CN 112096404A
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- 238000004873 anchoring Methods 0.000 title claims abstract description 77
- 230000005641 tunneling Effects 0.000 title claims abstract description 72
- 238000005065 mining Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 98
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000012423 maintenance Methods 0.000 claims description 15
- 230000001050 lubricating effect Effects 0.000 claims description 10
- 238000005461 lubrication Methods 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
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Abstract
The invention provides a mining height accurate positioning device of a temporary support system of a tunneling and anchoring all-in-one machine, the tunneling and anchoring all-in-one machine and a dismounting method, belonging to the technical field of underground coal mine roadway tunneling equipment, wherein the device comprises a circumferential positioning seat, a swinging arm, a coder mounting seat, a rotary coder, a self-lubricating bearing and a base; the circumferential positioning seat is fixed on the cutting arm; the base comprises a cylinder body and an annular disc body, the bottom of the cylinder body is closed, the disc body is fixed outside an opening in the top of the cylinder body, the cylinder body is inserted in the center of a rotary pin shaft of the cutting arm, and the disc body is fixed on the sliding rack; the encoder mounting seat is of a shaft sleeve structure and is connected with the inner wall of the cylinder body through a self-lubricating bearing; a rotary shell of the rotary encoder is fixed in the encoder mounting seat; one end of the swing arm is fixed on the circumferential positioning seat, and the other end of the swing arm is fixed on the encoder mounting seat. The invention realizes the real-time accurate measurement of the swing angle of the cutting arm, and finally calculates the cutting height according to the swing angle and the arm length of the cutting arm.
Description
Technical Field
The invention belongs to the technical field of underground coal mine roadway tunneling equipment, and particularly discloses a mining height accurate positioning device of a temporary support system of a tunneling and anchoring all-in-one machine, the tunneling and anchoring all-in-one machine and a dismounting method.
Background
The tunneling and anchoring integrated machine is one of main equipment for tunneling a tunnel under a coal mine, and is also key equipment of a tunneling and anchoring integrated technology. With the development of intelligent technology, the intelligent cutting technology becomes one of the key technologies of the intelligentization of the tunneling and anchoring integrated machine and is also a neck of the intelligentization of a coal roadway rapid tunneling system. The intelligent cutting of the tunneling and anchoring all-in-one machine is realized, the cutting height must be accurately measured and positioned, and then the identified data information is transmitted to a control center of the all-in-one machine so as to implement further control. The existing domestic tunneling and anchoring integrated machine realizes the measurement of the cutting height by installing an inclination angle sensor on a cutting arm, and the method has the problems of low measurement precision and low reliability and also restricts the development of equipment intellectualization.
In addition, the current domestic temporary support system of the tunneling and anchoring all-in-one machine integrates the functions of automatic net laying, a dust removal device and forepoling into a whole, the sliding forepoling roof realizes linkage and interlocking of cutting height and cut depth, the empty roof distance is reduced, the forepoling depth can be adjusted through a program and corresponds to the parameter of mining height (cutting height), and the adaptability of the system is improved. However, the current forward exploration depth and mining height cannot be dynamically matched in real time, a cutting height accurate measuring device needs to be installed on the tunneling and anchoring all-in-one machine, accurate mining height data is obtained in real time, and accurate linkage control of the forward exploration depth, the cutting height and the cut depth is achieved.
Therefore, the precise positioning device for the cutting height of the tunneling and anchoring all-in-one machine is designed, and the device has important significance for realizing an intelligent cutting technology and improving the intelligent degree of a domestic tunneling and anchoring all-in-one machine.
Disclosure of Invention
The invention provides a mining height accurate positioning device of a temporary support system of a tunneling and anchoring all-in-one machine and the tunneling and anchoring all-in-one machine, and simultaneously provides a dismounting and mounting method of the device on the tunneling and anchoring all-in-one machine in a limited space, and can realize underground convenient dismounting and maintenance, aiming at the technical problems that the cutting height measuring method of the existing tunneling and anchoring all-in-one machine cannot realize real-time dynamic display and intelligent cutting of the mining height and cannot realize accurate linkage control of the temporary support advancing depth, the cutting height and the cut depth.
In order to achieve the purpose, the invention provides a mining height accurate positioning device of a temporary support system of a tunneling and anchoring all-in-one machine, which is arranged at the hinged position of a cutting arm and a sliding rack of the tunneling and anchoring all-in-one machine, wherein the cutting arm and the sliding rack are hinged through a cutting arm rotating pin shaft and comprise a circumferential positioning seat, a swinging arm, an encoder mounting seat, a rotary encoder, a self-lubricating bearing and a base; the circumferential positioning seat is fixed on the cutting arm and rotates around a rotary pin shaft of the cutting arm along with the cutting arm; the base comprises a cylinder body and an annular disc body, the bottom of the cylinder body is closed, the disc body is fixed outside an opening in the top of the cylinder body, the cylinder body is inserted in the center of a rotary pin shaft of the cutting arm, and the disc body is fixed on the sliding rack; the encoder mounting seat is of a shaft sleeve structure, is connected with the inner wall of the cylinder body through a self-lubricating bearing and extends out of the top opening of the cylinder body; a rotary shell of the rotary encoder is fixed in the encoder mounting seat; one end of the swing arm is fixed on the circumferential positioning seat, and the other end of the swing arm is fixed on the encoder mounting seat.
Furthermore, the fixed shaft of the rotary encoder is connected with the bottom of the cylinder body through a connecting mechanism.
Further, the connecting mechanism comprises a coupler, a cross connecting piece, a cross groove bolt, a gasket and a locking nut; the four connecting ends of the cross connecting piece are a first connecting end, a second connecting end, a third connecting end and a fourth connecting end in sequence; one end of the coupler is connected with the rotary encoder, and the other end of the coupler is connected with the first connecting end of the cross connecting piece; the bottom of the barrel that the cross recess bolt passed, the tip that is located the barrel is provided with the cross recess, and the second link and the fourth link joint of cross connecting piece are in the cross recess, and the end fixing that the cross recess bolt is located the barrel outside is fixed outside the bottom of barrel through packing ring and lock nut.
Furthermore, the mining height accurate positioning device of the temporary support system of the tunneling and anchoring all-in-one machine also comprises an axial locking mechanism for axially limiting the encoder mounting seat; the axial locking mechanism comprises a locking plate; arc-shaped grooves are symmetrically formed in the outer wall of the encoder mounting seat; the jam plate symmetry sets up in the both sides of encoder mount pad, and one end be with arc slot complex arc structure, and the other end passes through the jam plate bolt fastening on the disk body of base.
Furthermore, the end part of the swing arm connected with the circumferential positioning seat is a narrowing end, grooves are symmetrically arranged on the narrowing end, and the narrowing end penetrates through a mounting groove or a mounting hole of the circumferential positioning seat; on the circumference positioning seat, be provided with the screw hole in the bilateral symmetry of mounting groove or mounting hole, the screw hole corresponds with the recess of receipts narrow end, and the jackscrew screw is worn to be equipped with by the screw hole internal thread, and the jackscrew supports and leans on in the recess of receipts narrow end.
Furthermore, a limiting plate is arranged outside the narrowing end.
The invention also provides a tunneling and anchoring all-in-one machine, the cutting arm is hinged with the sliding rack through a cutting arm rotating pin shaft, and the mining height accurate positioning device of the temporary support system of the tunneling and anchoring all-in-one machine is arranged at the hinged position of the cutting arm and the sliding rack.
Furthermore, a platform frame of the tunneling and anchoring all-in-one machine is provided with a reserved maintenance hole for dismounting and mounting the mining height accurate positioning device of the temporary support system of the tunneling and anchoring all-in-one machine.
Furthermore, the cutting arm rotary pin shaft is of a stepped structure, and the lubrication among the cutting arm rotary pin shaft, the cutting arm and the sliding rack adopts a lubrication mode of combining automatic lubrication and manual lubrication of a lubrication pump; the end face of the cutting arm rotary pin shaft, on which the mining height accurate positioning device of the tunneling and anchoring integrated machine temporary support system is not installed, is provided with a manual lubricating oil inlet, and a manual lubricating oil outlet is arranged on the circumferential surface corresponding to the cutting arm; the cutting arm is provided with a through automatic lubricating oil channel at the position between the sliding racks, and an inlet is positioned at the outer side of the cutting arm and is connected with a lubricating pump carried on the tunneling and anchoring integrated machine.
The invention also provides a dismounting method of the mining height accurate positioning device of the temporary support system of the tunneling and anchoring all-in-one machine in a limited space, which comprises the following steps:
the installation method comprises the following steps:
s1, the digging and anchoring integrated machine exits the range of the empty roof area and moves to a safety area with permanent support and a flat bottom plate;
s2, closing the walking function of the tunneling and anchoring integrated machine, and adjusting the cutting arm to be horizontal;
s3, moving the sliding frame until the rotation point of the cutting arm is just positioned at the reserved maintenance hole on the platform frame;
s4, sequentially mounting a base, a self-lubricating bearing, a cross groove bolt, a washer and a locking nut, assembling the rotary encoder, the shaft coupler and the cross connecting piece, mounting the rotary encoder, the shaft coupler and the cross connecting piece on an encoder mounting seat, aligning the cross connecting piece with the cross groove of the cross groove bolt, inserting the encoder mounting seat into the self-lubricating bearing, and mounting a circumferential positioning seat and a swing arm;
s5, installing an axial locking mechanism and adjusting the position of a jackscrew;
the disassembling method comprises the following steps:
s1, the digging and anchoring integrated machine exits the range of the empty roof area and moves to a safety area with permanent support and a flat bottom plate;
s2, closing the walking function of the tunneling and anchoring integrated machine, and adjusting the cutting arm to be horizontal;
s3, moving the sliding frame until the rotation point of the cutting arm is just positioned at the reserved maintenance hole on the platform frame;
and S4, sequentially removing the swing arm and the locking plate by using the existing space, pulling out the encoder mounting seat, the rotary encoder, the shaft coupler and the cross connecting piece, and replacing the rotary encoder.
The invention has the following beneficial effects:
1. the invention realizes the accurate and reliable measurement function of the swing angle of the swing mechanism of the underground coal mine tunneling equipment in a limited space, is applied to a tunneling and anchoring integrated machine, realizes the real-time accurate measurement of the swing angle of the cutting arm, finally calculates the cutting height according to the swing angle and the arm length of the cutting arm, and improves the positioning accuracy and reliability of the cutting height;
2. the invention provides a foundation for the precise linkage control of the temporary support advance depth, the cutting height and the cutting depth of the tunneling and anchoring all-in-one machine, and improves the intelligent degree of the tunneling and anchoring all-in-one machine;
3. the dismounting and mounting method of the mining height accurate positioning device of the temporary support system of the tunneling and anchoring integrated machine in the limited space (such as underground) provided by the invention has the advantages of convenient replacement and reduction of underground work maintenance of the tunneling and anchoring integrated machine.
Drawings
FIG. 1 is a front view of the installation of a mining height accurate positioning device of a temporary support system of a tunneling and anchoring integrated machine (the arrow direction is the tunneling direction);
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a schematic view of the connection between the circumferential positioning seat and the swing arm;
FIG. 4 is a schematic structural view of the connection mechanism;
FIG. 5 is a diagram showing a positional relationship between a mining height accurate positioning device of a temporary support system of the tunneling and anchoring integrated machine and a reserved maintenance hole during loading and unloading;
fig. 6 is a sectional view taken along the direction B-B of fig. 5.
Wherein, the names corresponding to the reference numbers are:
1-a circumferential positioning seat; 1.1-jackscrew; 2-a swing arm; 2.1-narrowing end; 2.2-grooves; 2.3-limiting plate; 3-encoder mounting base; 4-a rotary encoder; 5-self-lubricating bearings; 6.1-coupling; 6.2-cross connector; 6.3-cross groove bolt; 6.4-gasket; 6.5-locking nut; 7-a base; 8-an axial locking mechanism; 8.1-locking plate; 8.2-locking plate bolt; 100-a mining height accurate positioning device of a temporary support system of a tunneling and anchoring integrated machine; 201-a cutting arm; 202-a sliding frame; 203-a cutting arm rotating pin shaft; 300-right platform frame; 301-reserving maintenance holes; 400-an electronic control device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a mining height accurate positioning device 100 of a temporary support system of a tunneling and anchoring all-in-one machine, which is arranged at a hinged position of a cutting arm 201 and a sliding rack 202 of the tunneling and anchoring all-in-one machine, wherein the cutting arm 201 and the sliding rack 202 are hinged through a cutting arm rotary pin shaft 203 and comprise a circumferential positioning seat 1, a swing arm 2, an encoder mounting seat 3, a rotary encoder 4, a self-lubricating bearing 5, a connecting mechanism and a base 7; the circumferential positioning seat 1 is fixed on the cutting arm 201 by welding or detachable connection and rotates around a cutting arm rotating pin shaft 203 along with the cutting arm 201; the base 7 comprises a cylinder body and an annular disc body, the bottom of the cylinder body is closed, the disc body is fixed outside an opening at the top of the cylinder body, the cylinder body is inserted in the center of a rotary pin shaft 203 of the cutting arm, and the disc body is fixed on the sliding rack 202; the encoder mounting seat 3 is of a shaft sleeve structure, is connected with the inner wall of the cylinder body through a self-lubricating bearing 5 and extends out of the top opening of the cylinder body; a rotary shell of the rotary encoder 4 is fixed in the encoder mounting seat 3 and rotates along with the encoder mounting seat 3, and a fixed shaft of the rotary encoder 4 is connected with the bottom of the cylinder body through a connecting mechanism to limit the rotary encoder 4; one end of the swing arm 2 is fixed on the circumferential positioning seat 1, the other end of the swing arm is fixed on the encoder mounting seat 3, and the circumferential positioning seat 1 rotates along with the cutting arm 201 to drive the swing arm 2 and the encoder mounting seat 3 to rotate. The whole device is designed and utilized with the existing space, the structure is compact, and the arrangement is reasonable.
Further, the connecting mechanism comprises a coupler 6.1, a cross connecting piece 6.2, a cross groove bolt 6.3, a gasket 6.4 and a lock nut 6.5; the four connecting ends of the cross connecting piece 6.2 are a first connecting end, a second connecting end, a third connecting end and a fourth connecting end in sequence; one end of the shaft coupler 6.1 is connected with the rotary encoder 4, and the other end is connected with a first connecting end of the cross connecting piece 6.2; the bottom of the barrel that cross recess bolt 6.3 passed, the tip that is located the barrel is provided with the cross recess, and the second link and the fourth link joint of cross connecting piece 6.2 are in the cross recess, and cross recess bolt 6.3 is located the fixed outside bottom of barrel through packing ring 6.4 and lock nut 6.5 of the tip of the external position of barrel. The connecting mechanism is rapid to assemble and disassemble and good in stability.
Furthermore, the gasket 6.4 is preferably made of NORD-LOCK LOCK gasket, and under a certain fastening torque, the teeth on the gasket 6.4 are meshed with the bottom of the cylinder body, so that the locking nut 6.3 is prevented from loosening, and the measuring accuracy is improved.
Furthermore, the mining height accurate positioning device of the temporary support system of the tunneling and anchoring all-in-one machine also comprises an axial locking mechanism 8 for axially limiting the encoder mounting seat 3; the axial locking mechanism 8 comprises a locking plate 8.1; arc-shaped grooves are symmetrically formed in the outer wall of the encoder mounting seat 3; the jam plate 8.1 symmetry sets up in the both sides of encoder mount pad 3, and one end be with arc slot complex arc structure, and the other end passes through jam plate bolt 8.2 to be fixed on the disk body of base. The locking plate 8.1 is made of materials with buffering and vibration absorbing functions, and fatigue damage caused by vibration of the cutting arm 201 in the cutting operation process of the tunneling and anchoring integrated machine is reduced.
Further, as shown in fig. 3, fig. 3 is a top view of fig. 2, an end portion of the swing arm 2 connected to the circumferential positioning seat 1 is a narrowed end 2.1, a width of the narrowed end 2.1 is b, grooves 2.2 are symmetrically arranged on the narrowed end 2.1, and the narrowed end 2.2 is inserted into a mounting groove or a mounting hole of the circumferential positioning seat 1, that is, the width of the mounting groove or the mounting hole is a, a > b; on the circumference positioning seat 1, the bilateral symmetry at mounting groove or mounting hole is provided with the screw hole, and the screw hole corresponds with 2.2 of the recess of narrowing end 2.1, and the screw hole internal thread is worn to be equipped with jackscrew screw 1.1, and jackscrew 1.1 supports and leans on in the recess 2.2 of narrowing end 2.1. Circumferential fine adjustment of the swing arm 2 is achieved by adjusting the jackscrew 1.1, and accuracy and reliability of an initial installation position are guaranteed.
Furthermore, a limiting plate 2.3 is installed outside the narrowing end 2.1, so that the phenomenon that the axial bending of the swing arm 2 is too large due to external force factors (such as falling coal blocks) is avoided, and the reliability of the device is improved.
Further, the plate body of the base 7 is a flange plate and is fixed on the sliding rack 202 through bolts.
Further, evenly arrange 4 screw holes on the terminal surface of cutting arm gyration round pin axle 203 and faraday's dish contact, correspond on the ring flange and arrange 4 unthreaded holes for realize cutting arm gyration round pin axle 203 and base 7 fixed, restrict the axial float of cutting arm gyration round pin axle 203, the bolt (A department) of bottom is not installed, prevents rotary encoder 4 and rotates the in-process and interferes with the bottom bolt, leads to rotary encoder 4 to become invalid.
Furthermore, the self-lubricating bearing 5 is inlaid with a lubricating material, so that the matching surface of the encoder mounting seat 3 and the base 7 is lubricated in real time in the working process of the device.
The embodiment also provides a tunneling and anchoring all-in-one machine, the cutting arm 201 is hinged with the sliding rack 202 through the cutting arm rotating pin shaft 203, and the mining height accurate positioning device 100 of the temporary support system of the tunneling and anchoring all-in-one machine is arranged at the hinged position of the cutting arm 201 and the sliding rack 202.
Furthermore, a reserved maintenance hole 301 for dismounting and mounting the mining height accurate positioning device 100 of the temporary support system of the tunneling and anchoring all-in-one machine is formed in the platform frame 300 of the tunneling and anchoring all-in-one machine, when the platform frame 300 is selected, the arrangement is relatively simple, the mounting and dismounting of the mining height accurate positioning device 100 of the temporary support system of the tunneling and anchoring all-in-one machine are facilitated, the platform frame 300 is selected, the reserved maintenance hole 301 is processed, and the mining height accurate positioning device 100 of the temporary support system of the tunneling and anchoring all-in-one machine is mounted.
Further, the cutting arm rotation pin shaft 203 is of a stepped structure, the end face of the mining-height accurate positioning device 100 without the temporary support system of the tunneling-anchoring all-in-one machine is a large end face, and the end face of the mining-height accurate positioning device 100 with the temporary support system of the tunneling-anchoring all-in-one machine is a small end face, so that the cutting arm rotation pin shaft 203 is conveniently dismounted on one side (R side) of the mining-height accurate positioning device 100 without the temporary support system of the tunneling-anchoring all-in-one machine.
Furthermore, the lubricating mode of combining automatic lubricating and manual lubricating of a lubricating pump is adopted for lubricating the cutting arm rotating pin shaft 203, the cutting arm 201 and the sliding rack 202, so that the lubricating reliability is effectively improved; the end surface of the cutting arm rotary pin shaft 203, which is not provided with the mining height accurate positioning device 100 of the temporary support system of the tunneling and anchoring integrated machine, is provided with a manual lubricating oil inlet (a port B), and the circumferential surface corresponding to the cutting arm 201 is provided with a manual lubricating oil outlet; the cutting arm 201 is provided with a through automatic lubricating oil channel at a position between the sliding frames 202, and an inlet is positioned at the outer side (C port) of the cutting arm 201 and is connected with a lubricating pump mounted on the tunneling and anchoring integrated machine.
The embodiment also provides a dismounting method of the mining height accurate positioning device of the temporary support system of the integrated machine in the integrated machine, which comprises an installation method and a dismounting method.
The installation method comprises the following steps:
s1, the digging and anchoring integrated machine exits the range of the empty roof area and moves to a safety area with permanent support and a flat bottom plate;
s2, closing the walking function of the tunneling and anchoring integrated machine, and adjusting the cutting arm 201 to be horizontal;
s3, moving the sliding frame 202 to a cutting arm turning point (namely, the hinged position of the cutting arm 201 and the sliding frame 202) which is just positioned at the reserved maintenance hole 301 on the platform frame 300;
s4, taking the example that the electric control device 400 is disposed on the platform frame 300, sequentially mounting the base 7, the self-lubricating bearing 5, the cross-groove bolt 6.3, the washer 6.4 and the locking nut 6.5 by using the space H1 between the platform frame 300 and the sliding frame 202, the space H2 between the electric control device 400 and the sliding frame 202, and the reserved maintenance hole 301, mounting the rotary encoder 4, the coupler 6.1, and the cross-connecting member 6.2 on the encoder mounting base 3, aligning the cross-connecting member 6.2 with the cross-groove of the cross-groove bolt 6.3, inserting the encoder mounting base 3 into the self-lubricating bearing 5, mounting the circumferential positioning seat 1 and the swing arm 2, and adjusting the mounting phase of the encoder mounting base 3 to make the angle β =30 ° between the output end of the rotary encoder 4 and the vertical direction;
s5, an axial locking mechanism 8 is installed, the position of the jackscrew 1.1 is adjusted, and the jackscrew 1.1 is coated with anti-loosening glue.
The disassembling method comprises the following steps:
s1, the digging and anchoring integrated machine exits the range of the empty roof area and moves to a safety area with permanent support and a flat bottom plate;
s2, closing the walking function of the tunneling and anchoring integrated machine, and adjusting the cutting arm 201 to be horizontal;
s3, moving the sliding frame 202 until the turning point of the cutting arm is just positioned at the reserved maintenance hole 301 on the platform frame 300;
and S4, the swing arm 2 and the lock plate 8.1 are removed by utilizing the space H1 between the platform frame 300 and the sliding frame 202, the encoder mounting seat 3, the rotary encoder 4, the coupler 6.1 and the cross connecting piece 6.2 are pulled out by utilizing the space H2 between the electric control device 400 and the sliding frame 202, and the rotary encoder 3 is replaced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A mining height accurate positioning device of a temporary support system of a tunneling and anchoring all-in-one machine is characterized in that the mining height accurate positioning device is arranged at a hinged position of a cutting arm and a sliding rack of the tunneling and anchoring all-in-one machine, the cutting arm and the sliding rack are hinged through a cutting arm rotary pin shaft, and the mining height accurate positioning device comprises a circumferential positioning seat, a swing arm, a coder installation seat, a rotary coder, a self-lubricating bearing and a base;
the circumferential positioning seat is fixed on the cutting arm and rotates around a rotary pin shaft of the cutting arm along with the cutting arm;
the base comprises a barrel and an annular disc body, the bottom of the barrel is sealed, the disc body is fixed outside an opening in the top of the barrel, the barrel is inserted in the center of a rotary pin shaft of the cutting arm, and the disc body is fixed on the sliding rack;
the encoder mounting seat is of a shaft sleeve structure, is connected with the inner wall of the cylinder body through a self-lubricating bearing and extends out of the top opening of the cylinder body;
the rotary shell of the rotary encoder is fixed in the encoder mounting seat;
one end of the swing arm is fixed on the circumferential positioning seat, and the other end of the swing arm is fixed on the encoder mounting seat.
2. The mining-bolting all-in-one machine temporary support system mining-height precise positioning device according to claim 1, wherein a fixed shaft of the rotary encoder is connected with the bottom of the cylinder body through a connecting mechanism.
3. The mining-height precise positioning device of the temporary support system of the integrated machine with tunneling and anchoring as claimed in claim 2, wherein the connecting mechanism comprises a coupling, a cross-shaped connecting piece, a cross-shaped groove bolt, a washer and a locking nut;
the four connecting ends of the cross connecting piece are a first connecting end, a second connecting end, a third connecting end and a fourth connecting end in sequence;
one end of the coupler is connected with the rotary encoder, and the other end of the coupler is connected with the first connecting end of the cross connecting piece;
the bottom of the barrel that the cross recess bolt passed, the tip that is located the barrel is provided with the cross recess, and the second link and the fourth link joint of cross connecting piece are in the cross recess, and the end fixing that the cross recess bolt is located the barrel outside is fixed outside the bottom of barrel through packing ring and lock nut.
4. The mining-height precise positioning device of the temporary support system of the integrated machine with digging and anchoring as claimed in claim 3, further comprising an axial locking mechanism for axially limiting the encoder mounting seat;
the axial locking mechanism comprises a locking plate;
arc-shaped grooves are symmetrically formed in the outer wall of the encoder mounting seat;
the jam plate symmetry sets up in the both sides of encoder mount pad, one end be with arc slot complex arc structure, the other end passes through the jam plate bolt fastening on the disk body of base.
5. The mining-height precise positioning device of the temporary support system of the integrated machine with driving and anchoring as claimed in any one of claims 1 to 4, wherein the end part of the swing arm connected with the circumferential positioning seat is a narrowed end, grooves are symmetrically arranged on the narrowed end, and the narrowed end is arranged in a mounting groove or a mounting hole of the circumferential positioning seat in a penetrating manner;
on the circumference positioning seat, the bilateral symmetry at mounting groove or mounting hole is provided with the screw hole, and the screw hole corresponds with the recess of receipts narrow end, and the jackscrew screw is worn to be equipped with by the screw hole internal thread, and the jackscrew support leans on in the recess of receipts narrow end.
6. The mining-height precise positioning device of the temporary support system of the integrated machine with tunneling and anchoring as claimed in claim 5, wherein a limiting plate is mounted outside the narrowed end.
7. A tunneling and anchoring all-in-one machine is characterized in that a cutting arm is hinged with a sliding rack through a cutting arm rotating pin shaft, and the mining height accurate positioning device of the temporary support system of the tunneling and anchoring all-in-one machine is arranged at the hinged position of the cutting arm and the sliding rack and is claimed in claim 5 or 6.
8. The machine of claim 7, wherein the platform frame of the machine is provided with a reserved maintenance hole for mounting and dismounting the mining height accurate positioning device of the temporary support system of the machine.
9. The tunneling and anchoring all-in-one machine is characterized in that the cutting arm rotating pin shaft is of a stepped structure, and lubrication among the cutting arm rotating pin shaft, the cutting arm and the sliding rack is realized in a lubrication mode of combining automatic lubrication and manual lubrication of a lubrication pump;
the end face of the cutting arm rotary pin shaft, on which the mining height accurate positioning device of the tunneling and anchoring integrated machine temporary support system is not installed, is provided with a manual lubricating oil inlet, and a manual lubricating oil outlet is formed in the circumferential surface corresponding to the cutting arm;
and a through automatic lubricating oil channel is arranged at the position of the cutting arm between the sliding racks, and an inlet is positioned at the outer side of the cutting arm and is connected with a lubricating pump carried on the tunneling and anchoring integrated machine.
10. A method for dismounting a mining height accurate positioning device of a temporary support system of an all-in-one machine in the all-in-one machine according to claim 8 or 9, which is characterized by comprising the following steps:
the installation method comprises the following steps:
s1, the digging and anchoring integrated machine exits the range of the empty roof area and moves to a safety area with permanent support and a flat bottom plate;
s2, closing the walking function of the tunneling and anchoring integrated machine, and adjusting the cutting arm to be horizontal;
s3, moving the sliding frame until the rotation point of the cutting arm is just positioned at the reserved maintenance hole on the platform frame;
s4, sequentially mounting a base, a self-lubricating bearing, a cross groove bolt, a washer and a locking nut, assembling the rotary encoder, the shaft coupler and the cross connecting piece, mounting the rotary encoder, the shaft coupler and the cross connecting piece on an encoder mounting seat, aligning the cross connecting piece with the cross groove of the cross groove bolt, inserting the encoder mounting seat into the self-lubricating bearing, and mounting a circumferential positioning seat and a swing arm;
s5, installing an axial locking mechanism and adjusting the position of a jackscrew;
the disassembling method comprises the following steps:
s1, the digging and anchoring integrated machine exits the range of the empty roof area and moves to a safety area with permanent support and a flat bottom plate;
s2, closing the walking function of the tunneling and anchoring integrated machine, and adjusting the cutting arm to be horizontal;
s3, moving the sliding frame until the rotation point of the cutting arm is just positioned at the reserved maintenance hole on the platform frame;
and S4, sequentially removing the swing arm and the locking plate by using the existing space, pulling out the encoder mounting seat, the rotary encoder, the shaft coupler and the cross connecting piece, and replacing the rotary encoder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010904453.2A CN112096404B (en) | 2020-09-01 | 2020-09-01 | Mining height accurate positioning device of temporary support system of tunneling and anchoring all-in-one machine, tunneling and anchoring all-in-one machine and dismounting and mounting method |
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| CN202010904453.2A CN112096404B (en) | 2020-09-01 | 2020-09-01 | Mining height accurate positioning device of temporary support system of tunneling and anchoring all-in-one machine, tunneling and anchoring all-in-one machine and dismounting and mounting method |
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