CN108150166B - Cantilever type longitudinal shaft digging and anchoring machine with walking mechanism - Google Patents
Cantilever type longitudinal shaft digging and anchoring machine with walking mechanism Download PDFInfo
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- CN108150166B CN108150166B CN201810104331.8A CN201810104331A CN108150166B CN 108150166 B CN108150166 B CN 108150166B CN 201810104331 A CN201810104331 A CN 201810104331A CN 108150166 B CN108150166 B CN 108150166B
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- 238000005553 drilling Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 4
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- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 3
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- 238000010276 construction Methods 0.000 abstract description 54
- 239000003245 coal Substances 0.000 abstract description 26
- 230000008569 process Effects 0.000 description 16
- 239000011435 rock Substances 0.000 description 9
- 238000009412 basement excavation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
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Abstract
The invention belongs to the technical field of coal mine coal roadway tunneling construction equipment, and particularly relates to a cantilever type longitudinal shaft tunneling and anchoring machine with a traveling mechanism, which comprises a cantilever type longitudinal shaft tunneling machine, wherein the cantilever type longitudinal shaft tunneling machine comprises a rack body, a left traveling part, a right traveling part, a cutting part, a revolving body, a rear supporting body, a loading mechanism, a first scraper conveyer, an electric control system, a hydraulic system, a spraying system and a cooling system; the first scraper conveyer comprises a tail part arranged on the rack body and a head part extending out of the rear part of the rack body, and a plurality of onboard jumbolters are arranged on the head part; when the anchoring support device is used, an onboard anchor rod drilling machine can be used for anchoring and supporting a coal roadway when the cantilever type longitudinal axis heading machine is used for heading, so that parallel operation of heading and anchoring can be realized, the problem that time is consumed due to frequent switching between two working procedures of heading and anchoring is solved, the construction efficiency and the construction speed can be improved, and the roof collapse phenomenon is prevented.
Description
The invention is a divisional application with the application number of 201410389581.2, the application date of 2014.8.9 and the name of cantilever type longitudinal shaft driving and anchoring machine and step-by-step construction stage roadway coal roadway construction process.
Technical Field
The invention belongs to the technical field of coal mine coal roadway tunneling construction equipment, and particularly relates to a cantilever type longitudinal shaft tunneling and anchoring machine with a traveling mechanism.
Background
Roof collapse is easy to occur in the roof (coal) of a plurality of coal mine coal roadways in the tunneling process, and construction can be carried out only by small-cycle footage in order to prevent roof collapse in the tunneling construction operation process; at present, the construction equipment for coal mine coal roadway tunneling can not realize parallel operation of tunneling and anchoring, frequent switching between tunneling and anchoring procedures is needed, and the construction efficiency and the construction speed are seriously influenced, which is a main reason that the monthly footage of a plurality of fully mechanized working faces is within 400m at present, and some monthly footages are even less than 300 m. The construction speed not only influences the economic benefit of enterprises, but also causes tension in the mining relation of coal mines, and even influences the working face continuation of the coal mines. The geological conditions cannot be changed, construction speed needs to be improved, construction equipment and a matched construction process which are adaptive to the geological conditions need to be designed and researched, the self-stability capability of the coal and rock mass of the constructed roadway is fully utilized, the circulation step distance is increased under the condition that the top plate of the roadway at an operation place is not roof-caving in the construction process, parallel operation of digging and anchoring is realized, the working hour utilization rate is improved, the influence of equipment displacement on production is obviously reduced, the effective operation time is greatly increased, and therefore the construction efficiency and the construction speed are obviously improved. Based on the thought, the patent provides a coal road fully-mechanized excavating construction equipment and a matched construction process.
Disclosure of Invention
The invention provides a cantilever type longitudinal shaft tunneling and anchoring machine with a walking mechanism, which can realize parallel operation of tunneling and anchoring, and aims to avoid frequent conversion between tunneling and anchoring procedures and improve construction efficiency and construction speed.
The technical scheme of the invention is as follows:
a cantilever type longitudinal shaft tunneling and anchoring machine with a traveling mechanism comprises a cantilever type longitudinal shaft tunneling and anchoring machine with a traveling mechanism, wherein the cantilever type longitudinal shaft tunneling and anchoring machine comprises a rack body, a left traveling part, a right traveling part, a cutting part, a revolving body, a rear supporting body, a loading mechanism, a first scraper conveyer, an electric control system, a hydraulic system, a spraying system and a cooling system; the cantilever type longitudinal shaft tunneling and anchoring machine further comprises a second scraper conveyor/rubber belt conveyor, the tail end of the second scraper conveyor/rubber belt conveyor is positioned below the machine head of the first scraper conveyor and is overlapped with the machine head of the first scraper conveyor, the second scraper conveyor/rubber belt conveyor is in collision with the cantilever type longitudinal shaft tunneling machine through a hydraulic limiting and locking device, and the machine head end of the second scraper conveyor/rubber belt conveyor is overlapped with external matched conveying equipment; a plurality of hydraulic lifting working platforms and an onboard jumbolter are arranged on the second scraper conveyor/rubber belt conveyor, and the onboard jumbolter is arranged on the hydraulic lifting working platforms; the second scraper conveyor/rubber belt conveyor is also provided with a left crawler travelling mechanism and a right crawler travelling mechanism; the left crawler traveling mechanism, the right crawler traveling mechanism, the left traveling part and the right traveling part are respectively driven by a hydraulic motor; the first scraper conveyor or the second scraper conveyor is a single-strand scraper conveyor, the first scraper conveyor or the second scraper conveyor comprising a horizontal bendable chute; and the first scraper conveyor or the second scraper conveyor/rubber belt conveyor is also provided with a hydraulic supporting and stabilizing device, the hydraulic supporting and stabilizing device comprises a supporting plate and a hydraulic lifting cylinder for controlling the lifting of the supporting plate, and the hydraulic lifting cylinder is in hydraulic connection with a hydraulic system of the cantilever type longitudinal shaft heading machine through a control valve.
As an improvement, the width of the loading mechanism is adjustable, the loading mechanism comprises a basic loading mechanism and an auxiliary loading mechanism, the basic loading mechanism comprises a main shovel plate, a rake claw and a driving motor, the auxiliary loading mechanism comprises two auxiliary shovel plates respectively hinged with two sides of the main shovel plate, a hydraulic control cylinder hinged with the auxiliary shovel plates and used for controlling the auxiliary shovel plates to open and close is respectively arranged between each auxiliary shovel plate and the main shovel plate, and the hydraulic control cylinder is in hydraulic connection with a hydraulic system of the cantilever type longitudinal shaft heading machine through a control valve.
As an improvement, the cantilever type longitudinal shaft heading machine is further provided with a remote control instruction transmitting device, a remote control instruction receiving device, a camera and a display screen, wherein the camera and the display screen are used for monitoring the position and the working condition of the cutting part, and the remote control instruction receiving device, the camera and the display screen are respectively and electrically connected with an electric control system of the cantilever type longitudinal shaft heading machine.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the first scraper conveyor of the cantilever type longitudinal shaft digging and anchoring machine comprises a machine tail part on the machine frame body and a machine head part extending out of the rear part of the machine frame body, wherein a plurality of machine-mounted anchor rod drilling machines are arranged on the machine head part; when the machine is used, the machine head part of the first scraper conveyor extending out of the rear part of the rack body is provided with the airborne anchor rod drilling machine, so that when the cantilever type longitudinal shaft heading machine is used for heading, the airborne anchor rod drilling machine is used for anchoring the top plate of the coal roadway, the parallel operation of heading and anchoring can be realized, the problem that time is consumed due to frequent conversion between two procedures of heading and anchoring and equipment displacement is solved, and the construction efficiency and the construction speed can be improved.
2. The cantilever type longitudinal shaft digging and anchoring machine comprises a second scraper conveyer/rubber belt conveyer, the tail end of the second scraper conveyer/rubber belt conveyer is positioned below the machine head of the first scraper conveyer and is lapped with the machine head, and the machine head end of the second scraper conveyer/rubber belt conveyer is lapped with external matched conveying equipment; a plurality of onboard jumbolters are arranged on the second scraper conveyor/adhesive tape conveyor; when the parallel operation type coal roadway tunneling machine is used, the machine-mounted anchor rod drilling machines are arranged on the second scraper conveyor/rubber belt conveyor, so that anchor rods can be carried out on a coal roadway top plate by the machine-mounted anchor rod drilling machines when the cantilever type longitudinal shaft tunneling machine tunnels, the parallel operation of tunneling and anchoring can be realized, the problem that time is consumed due to frequent switching between tunneling and anchoring procedures and frequent shifting of equipment is solved, the construction efficiency and the construction speed can be improved, and the mutual restriction between the tunneling machine operation and the machine-mounted anchor rod drilling machine operation is reduced.
Drawings
Figure 1 is a front view schematic of a cantilevered longitudinal shaft bolting machine according to a first embodiment of the invention;
figure 2 is a schematic top view of a cantilevered longitudinal shaft bolting machine according to a first embodiment of the invention;
FIG. 3 is a schematic structural view of the loading mechanism;
figure 4 is a front view schematic of a cantilevered longitudinal shaft bolting machine according to a second embodiment of the present invention;
figure 5 is a front elevation schematic view of a cantilevered longitudinal shaft bolting machine according to a third embodiment of the present invention;
figure 6 is a schematic top view of a cantilevered longitudinal shaft bolting machine according to a third embodiment of the invention;
FIG. 7 is a schematic structural view of a limit lock;
FIG. 8 is a schematic structural view of a chute;
FIG. 9 is a schematic structural view of the chute in a curved condition;
figure 10 is a front elevational schematic view of a first cycle of operation of the cantilevered longitudinal axis excavator;
figure 11 is a schematic top view of a cantilevered longitudinal shaft excavator in a first cycle of operation;
figure 12 is a left side elevational schematic view of a first cycle operating condition of the cantilevered longitudinal axis excavator;
figure 13 is a front elevational schematic view of a second cycle of the cantilevered longitudinal shaft excavator;
figure 14 is a schematic top view of the cantilevered longitudinal shaft excavator in a second cycle of operation;
figure 15 is a left side elevational schematic view of a second cycle operating condition of the cantilevered longitudinal axis excavator;
wherein, 100, cantilever type longitudinal shaft heading machine, 101, a frame body, 102, a left walking part, 103, a right walking part, 104, a cutting part, 105, a revolving body, 106, a rear supporting body, 107, a loading mechanism, 107a, a main shovel plate, 107b, a harrow claw, 107c, an auxiliary shovel plate, 107d, a hydraulic control oil cylinder, 108, a first scraper conveyer, 109, a tail part, 110, a nose part, 111, a slope-changing chute, 112a, an onboard anchor rod drilling machine, 112b, an onboard anchor rod drilling machine, 113, a second scraper conveyer, 114, a platform, 115, a first frame body, 116, a second frame body, 117, a hydraulic lifting oil cylinder, 118a, a left crawler walking mechanism, 118b, a right crawler walking mechanism, 119a, a first linkage valve, 119b, a second linkage valve, 119c, a first linkage valve, 119d, a second linkage valve, 120a, a hydraulic motor, 120b, hydraulic motor, 120c, a hydraulic motor, 120d, a hydraulic motor, 121a, a heading machine hydraulic system, 121b, a second scraper conveyor hydraulic system, 122, a one-way valve, 123, a chute, 123a, a chute, 123b, and a dumbbell pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following non-limiting description of the structure of the cantilever type longitudinal shaft driving and anchoring machine is made in conjunction with the accompanying drawings and examples:
first embodiment
As can be seen in fig. 1 and 2, the cantilevered longitudinal shaft bolting machine comprises: a boom-type longitudinal axis roadheader 100, the boom-type longitudinal axis roadheader 100 including a frame body 101, a left traveling part 102, a right traveling part 103, a cutting part 104, a revolving body 105, a rear support body 106, a loading mechanism 107, a first scraper conveyor 108, an electric control system, a hydraulic system, a spraying system, and a cooling system; the first scraper conveyor 108 comprises a tail part 109 arranged on the frame body 101, a head part 110 extending out of the rear part of the frame body 101 in the horizontal direction, a slope-changing chute 111 obliquely arranged is connected between the head part 110 and the tail part 109, and a plurality of airborne jumbolters 112a are arranged on the head part 110.
When the machine is used, the machine head part 110 of the first scraper conveyor 108 extending out of the rear part of the rack body 101 is provided with the machine-mounted anchor rod drilling machine 112a, so that when the cantilever type longitudinal shaft heading machine 100 is heading, the machine-mounted anchor rod drilling machine 112a is used for anchoring the top plate of the coal roadway, the heading and anchoring parallel operation can be realized, the labor hour utilization rate is improved, and the construction efficiency and the construction speed are improved.
In this embodiment, as can be seen from fig. 3, the width of the loading mechanism 107 is adjustable, and the loading mechanism includes a basic loading mechanism and an auxiliary loading mechanism, the basic loading mechanism includes a main blade 107a, two rakes 107b spaced apart from the main blade 107a, and a driving motor for driving the rakes 107b to rotate, the auxiliary loading mechanism includes two auxiliary blades 107c respectively hinged to two sides of the main blade 107a, a hydraulic control cylinder 107d hinged to the auxiliary blades 107c for controlling the opening and closing of the auxiliary blades 107c is respectively disposed between each auxiliary blade 107c and the main blade 107a, and the hydraulic control cylinder 107d is hydraulically connected to a hydraulic system of the boom-type longitudinal shaft heading machine 100 through a control valve.
In this embodiment, the boom-type longitudinal axis heading machine 100 is further provided with a remote control command transmitting device, a remote control command receiving device, a camera for monitoring the position of the cutting part 104 and the environmental conditions, and a display screen, wherein the remote control command receiving device, the camera and the display screen are respectively electrically connected with the electronic control system of the boom-type longitudinal axis heading machine 100. Therefore, unmanned operation on equipment can be realized, and the safety factor can be improved.
In this embodiment, a hydraulic support stabilizing device is further disposed on the first scraper conveyor 108, and the hydraulic support stabilizing device includes a support plate, and a hydraulic lift cylinder disposed between the support plate and the first scraper conveyor 108, and the hydraulic lift cylinder is in hydraulic connection with the hydraulic system of the cantilevered longitudinal axis heading machine 100 through a control valve; therefore, the problem of equipment jumping caused by overlong first scraper conveyor 108 can be avoided, and the stability of the equipment during operation can be enhanced.
In this embodiment, a ventilation duct is further disposed on the cantilever type longitudinal shaft tunneling and anchoring machine, an air inlet of the ventilation duct is disposed near the tunneling working surface cut by the cutting portion 104, and an air outlet of the ventilation duct is connected with an external matched exhaust fan air duct. Dust, harmful gas and the like generated in the construction operation process at an operation place can be sucked to the outside for purification and dilution, and construction operation workers are guaranteed to have a good working environment.
Second embodiment
As can be seen from fig. 4, this embodiment is substantially the same as the first embodiment, except that:
the first scraper conveyor 108 is provided with a lifting working platform for supporting workers to work conveniently, and when necessary, the lifting working platform can be arranged between the onboard anchor rod drilling machine 112a and the machine head part 110 as required, the hydraulic lifting working platform comprises a platform 114, a first frame body 115 and a second frame body 116 which are connected in the middle are arranged between the platform 114 and the machine head part 110, the top end of the first frame body 115 is hinged to one side part of the platform 114, the bottom end of the first frame body 115 is connected with the machine head part 110 in a sliding mode, the top end of the second frame body 116 is connected with the other side part of the platform 114 in a sliding mode, the bottom end of the second frame body 116 is hinged to the machine head part 110, and a hydraulic lifting oil cylinder 117 is arranged between the second frame body 116 and the machine head part 110. This allows the distance between the platform 114 and the nose portion 110 of the first face conveyor 108 to be adjusted as needed for ease of operation by the worker and for ease of operation of the anchor rod.
Third embodiment
As can be seen from fig. 5, 6 and 7, this embodiment is substantially the same as the first embodiment, except that:
the cantilever type longitudinal shaft digging and anchoring machine also comprises a second scraper conveyor 113, the tail end of the second scraper conveyor 113 is positioned below the head part 110 of the first scraper conveyor 108 and is overlapped with the head part, and the head end of the second scraper conveyor 113 is overlapped with external matched transportation equipment; a plurality of onboard jumbolters 112b are arranged on the second flight conveyor 113, and a left crawler 118a and a right crawler 118b are respectively arranged on the left side and the right side of the second flight conveyor 113 in order to facilitate movement of the second flight conveyor 113; in order to enhance the safety performance, avoid the collision of the second face conveyor 113 with the cantilevered longitudinal shaft heading machine 100, and the second face conveyor 113 coming out of the range of the head part 110 of the first face conveyor 108, a limit locking device is provided between the second face conveyor 113 and the cantilevered longitudinal shaft heading machine 100, which includes a left hydraulic limit locking device and a right hydraulic limit locking device arranged side by side. The right hydraulic limit locking device comprises a first locking valve 119a and a second locking valve 119b which are arranged on the head part 110 of the first scraper conveyor 108 at intervals, a port loop of the first locking valve 119a is connected with a hydraulic motor 120a driving the right walking part 103 in parallel and in a hydraulic connection mode, the hydraulic motor 120a is connected with a hydraulic system 121a of the heading machine in a hydraulic connection mode, a one-way valve 122 is connected on the port loop of the first locking valve 119a in series, a port loop of the second locking valve 119b is connected with a hydraulic motor 120b driving the right crawler walking mechanism 118b in parallel and in a hydraulic connection mode, the hydraulic motor 120b is connected with a hydraulic system 121b of the second scraper conveyor in a hydraulic connection mode, a one-way valve 122 is connected on the port loop of the second locking valve 119b in series, the port of the second locking valve 119b is connected with the other port of the first locking valve 119a in a hydraulic connection mode, and a one-way valve 122 is connected on the port loop in series, the port of the first interlock valve 119a is fluidly connected to the other port of the second interlock valve 119b, and a check valve 122 is connected in series to the port circuit.
The left hydraulic limit locking device comprises a first locking valve 119c and a second locking valve 119d which are arranged on the head part 110 of the first scraper conveyor 108 at intervals, a port loop of the first locking valve 119c is connected with a hydraulic motor 120c driving the left walking part 102 in parallel and in a hydraulic connection mode, the hydraulic motor 120c is connected with a hydraulic system 121a of the heading machine in a hydraulic connection mode, a one-way valve 122 is connected on the port loop of the first locking valve 119c in series, a port loop of the second locking valve 119d is connected with a hydraulic motor 120d driving the left crawler walking mechanism 118a in parallel and in a hydraulic connection mode, the hydraulic motor 120d is connected with a hydraulic system 121b of the second scraper conveyor in a hydraulic connection mode, a one-way valve 122 is connected on the port loop of the second locking valve 119d in series, the port of the second locking valve 119d is connected with the other port of the first locking valve 119c in a hydraulic connection mode, and a one-way valve 122 is connected on the port loop in series, the port of the first interlock valve 119c is fluidly connected to the other port of the second interlock valve 119d, and a check valve 122 is connected in series to the port circuit.
The working principle of the limiting and locking device is as follows:
when the anchor rod of the second scraper conveyor 113 in one area needs to advance, the second scraper conveyor 113 moves towards the direction of the cantilever type longitudinal shaft digging machine 100 until the second scraper conveyor 113 touches the valve cores of the first interlock valve 119a and the first interlock valve 119c, and at the moment, the working fluid flows back to the second scraper conveyor hydraulic system 121b and the second scraper conveyor hydraulic system through the other ports of the first interlock valve 119a and the first interlock valve 119c
121b cannot supply oil to the hydraulic motor 120b and the hydraulic motor 120d, the left crawler belt unit 118a and the right crawler belt unit 118b cannot move forward, and the second scraper conveyor 113 does not move forward any more, but can move backward to continue the bolting work; in the process of bolting the onboard roofbolter 112b on the second scraper conveyor 113, when the cantilevered longitudinal axis heading machine 100 still performs heading at a certain speed until the second scraper conveyor 113 touches the valve cores of the second interlock valve 119b and the second interlock valve 119d, at this time, the working fluid flows back to the heading machine hydraulic system 121a through the other ports of the second interlock valve 119b and the second interlock valve 119d, the heading machine hydraulic system 121a cannot supply oil to the hydraulic motor 120a and the hydraulic motor 120c, the left walking part 102 and the right walking part 103 cannot continue to advance, and the cantilevered longitudinal axis heading machine 100 does not advance any more but can also retreat; this can prevent the second flight conveyor 113 from colliding with the boom type longitudinal shaft heading machine 100, enhance safety, and prevent the second flight conveyor 113 from coming out of the range of the head part 110 of the first flight conveyor 108, enabling smooth delivery of coal.
When the cantilever type longitudinal shaft tunneling and anchoring machine of the embodiment is used, because the second scraper conveyer 113 is provided with the plurality of airborne anchor rod drilling machines 112b, when the cantilever type longitudinal shaft tunneling machine 100 tunnels, the airborne anchor rod drilling machines 112b are used for anchoring the top plate of the coal roadway, so that the parallel operation of tunneling and anchoring can be realized, the problem of time consumption caused by frequent switching between the tunneling and anchoring processes is solved, and the construction efficiency and the construction speed can be improved.
Of course, the first scraper conveyor 108 may be integrally disposed within the frame body 101, and in this case, the tail end of the second scraper conveyor 113 needs to be inserted into the frame body 101, disposed below the head of the first scraper conveyor 108 and overlapped with the head.
In this embodiment, a hydraulic support stabilizer is also disposed on the second scraper conveyor 113, and the hydraulic support stabilizer includes a support plate, and a hydraulic lift cylinder disposed between the support plate and the second scraper conveyor 113, and the hydraulic lift cylinder is in hydraulic connection with the hydraulic system of the cantilevered longitudinal axis heading machine 100 through a control valve; can rise the backup pad like this and push up on the coal road roof, avoid because of the equipment problem of beating that second scraper conveyor 113 overlength caused, can strengthen the stability of second scraper conveyor 113 during operation. Of course, hydraulic support stabilization means may be provided on the first face conveyor 108 to enhance the stability of the cantilevered longitudinal shaft heading machine 100.
As can be seen from fig. 8 and 9, in this embodiment, the second flight conveyor 113 is a single-strand flight conveyor, the chute in the horizontal portion of the second flight conveyor 113 is also provided as a horizontal bendable chute 123, the horizontal bendable chute 123 includes a plurality of segment chutes 123a, and a dumbbell pin 123b is connected between every two adjacent segment chutes 123 a. When a coal roadway with a certain curvature is tunneled, the horizontal part of the machine head part 110 can be bent, so that the movement is convenient. Of course, the first scraper conveyor 108 may also be configured as a single-chain scraper conveyor, and the chute of the head portion 110 thereof is also configured as a horizontally bendable chute 123, so that the cantilevered longitudinal shaft heading and anchoring machine can be more flexible and time-saving and labor-saving when turning.
In the present embodiment, the second flight conveyor 113 may be replaced with a belt conveyor. The invention also relates to a step-by-step construction stage roadway coal roadway construction process matched with the cantilever type longitudinal shaft driving and anchoring machine, and the structure of the cantilever type longitudinal shaft driving and anchoring machine is described in a non-limiting way by combining the attached drawings and the embodiment.
As can be seen from fig. 10 to 15, the step-by-step construction stage roadway coal roadway construction process includes the following steps:
the method comprises the following steps: determining step-by-step construction span d1, step-by-step construction support parameters and stage-by-step roadway support parameters according to support design, width, surrounding rock physical and mechanical properties, surrounding rock stress distribution and technical parameters of a cantilever type longitudinal shaft bolting machine of a constructed roadway, based on a natural balance arch theory of surrounding rocks of a roadway roof, by utilizing self-stability capability of the surrounding rocks of the constructed roadway roof and aiming at preventing roof collapse of the constructed roadway roof in the construction process; aiming at efficient construction, measuring and calculating the relation between the stage roadway-forming step distance and the effective operation time, and determining the stage roadway-forming step distance d2, wherein the stage roadway-forming step distance d2 is greater than the length from the front end of the cutting part 104 of the cantilever type longitudinal shaft heading machine 100 to the airborne jumbolter 112 a/the airborne jumbolter 112 b;
step two: excavating a small-span roadway with the width of the determined step construction span d1, which is smaller than the width of the constructed roadway, from the side walls of the constructed roadway by using the cantilever type longitudinal shaft heading machine 100, and performing anchoring support to the position of one step distance d2 in the stage of roadway formation by using the onboard anchor drilling machine 112a according to the distribution construction support parameters, as shown in fig. 10, 11 and 12;
step three: withdrawing the cantilever type longitudinal shaft digging and anchoring machine, excavating by the same method of the second step, and performing anchoring and supporting on the rest part of the width of the constructed roadway until the excavation and anchoring and supporting of the whole construction roadway width of a one-stage roadway forming step d2 are completed, so as to reach the parameter standard of the stage roadway forming supporting; repeating the second step and the third step, and starting excavation and anchoring support of a roadway at a roadway forming step distance d2 in the next stage, as shown in fig. 13, 14 and 15; the cantilever type longitudinal shaft heading and anchoring machine for the constructed roadway achieves stage-heading supporting parameters through at least two times of excavation and anchoring supporting, and in the actual operation process, the stage-heading step distance d2 is larger than the length from the front end of the cutting part of the cantilever type longitudinal shaft heading machine to the onboard jumbolter 112a or the onboard jumbolter 112 b. The step-by-step construction stage roadway coal roadway construction process is a small-span step-by-step construction and large-step-distance stage roadway construction process, and is characterized in that step-by-step construction span, step-by-step construction support parameters and stage roadway support parameters are determined by using the self-stability capability of the surrounding rock of the top plate of the constructed roadway based on the support design, the width, the physical and mechanical properties of the surrounding rock, the stress distribution of the surrounding rock and the technical parameters of the cantilever type longitudinal shaft driving-anchoring machine of the constructed roadway and taking the roof collapse not occurring in the construction process as a target based on the natural balance arch theory of the surrounding rock of the top plate of the roadway, and the span smaller than the width of the constructed roadway is used for step-by; with efficient construction as a target, measuring and calculating the relation between step-to-step roadway-forming steps and effective operation time, and determining reasonable step-to-step roadway-forming steps; the step distance of the stage roadway formation is larger than the length between the front end of the cutting part of the cantilever type longitudinal shaft heading machine and the airborne jumbolter; the parallel operation of digging and anchoring can be realized, the time consumed by conversion between two steps can be reduced, and the construction efficiency and the construction speed are improved; the step-by-step construction support parameters and the stage roadway support parameters comprise the specification and the model of support materials, the arrangement form of the support materials, the support density, the support sequence, the diameter and the depth of a drilled hole, the initial anchoring force and the like. The anchoring support can be realized by all anchor rods or by the mixed use of anchor rods and anchor cables, and the anchor rods and the anchor cables are common support means in the field.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A cantilever type longitudinal shaft tunneling and anchoring machine with a traveling mechanism comprises a cantilever type longitudinal shaft tunneling and anchoring machine with a traveling mechanism, wherein the cantilever type longitudinal shaft tunneling and anchoring machine comprises a rack body, a left traveling part, a right traveling part, a cutting part, a revolving body, a rear supporting body, a loading mechanism, a first scraper conveyer, an electric control system, a hydraulic system, a spraying system and a cooling system; the method is characterized in that: the first scraper conveyer comprises a tail part arranged on the rack body, a head part extending out of the rear part of the rack body in the horizontal direction, a slope-changing chute obliquely arranged is connected between the head part and the tail part, and a plurality of airborne anchor rod drilling machines are arranged on the head part; the cantilever type longitudinal shaft heading and anchoring machine further comprises a second scraper conveyor/rubber belt conveyor, the tail end of the second scraper conveyor/rubber belt conveyor is positioned below the machine head of the first scraper conveyor and is overlapped with the machine head of the first scraper conveyor, a collision-preventing hydraulic limiting locking device is arranged between the second scraper conveyor/rubber belt conveyor and the cantilever type longitudinal shaft heading machine, and the machine head end of the second scraper conveyor/rubber belt conveyor is overlapped with external matched transportation equipment; a plurality of hydraulic lifting working platforms and an onboard jumbolter are arranged on the second scraper conveyor/rubber belt conveyor, and the onboard jumbolter is arranged on the hydraulic lifting working platforms; the second scraper conveyor/rubber belt conveyor is also provided with a left crawler travelling mechanism and a right crawler travelling mechanism; the left crawler traveling mechanism, the right crawler traveling mechanism, the left traveling part and the right traveling part are respectively driven by a hydraulic motor; the first scraper conveyor or the second scraper conveyor is a single-strand scraper conveyor, the first scraper conveyor or the second scraper conveyor comprising a horizontal bendable chute;
and the first scraper conveyor or the second scraper conveyor/rubber belt conveyor is also provided with a hydraulic supporting and stabilizing device, the hydraulic supporting and stabilizing device comprises a supporting plate and a hydraulic lifting cylinder for controlling the lifting of the supporting plate, and the hydraulic lifting cylinder is hydraulically connected with a hydraulic system of the cantilever type longitudinal shaft heading machine through a control valve.
2. The cantilevered longitudinal shaft bolting machine with a traveling mechanism according to claim 1, wherein: the width of the loading mechanism is adjustable, the loading mechanism comprises a basic loading mechanism and an auxiliary loading mechanism, the basic loading mechanism comprises a main shovel plate, a rake claw and a driving motor, the auxiliary loading mechanism comprises two auxiliary shovel plates hinged to two sides of the main shovel plate respectively, a hydraulic control oil cylinder hinged to the auxiliary shovel plates and used for controlling the auxiliary shovel plates to open and close is arranged between each auxiliary shovel plate and the main shovel plate, and the hydraulic control oil cylinder is hydraulically connected with a hydraulic system of the cantilever type longitudinal shaft heading machine through a control valve.
3. The cantilevered longitudinal shaft bolting machine with a traveling mechanism according to claim 2, wherein: the cantilever type longitudinal shaft heading machine is further provided with a remote control instruction transmitting device, a remote control instruction receiving device, a camera and a display screen, wherein the camera and the display screen are used for monitoring the position and the working condition of the cutting part, and the remote control instruction receiving device, the camera and the display screen are respectively and electrically connected with an electric control system of the cantilever type longitudinal shaft heading machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810104331.8A CN108150166B (en) | 2014-08-09 | 2014-08-09 | Cantilever type longitudinal shaft digging and anchoring machine with walking mechanism |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410389581.2A CN105370275B (en) | 2014-08-09 | 2014-08-09 | Cantilevered longitudinal axis anchor driving machine and step-by-step construction stage are at lane coal road construction technology |
| CN201810104331.8A CN108150166B (en) | 2014-08-09 | 2014-08-09 | Cantilever type longitudinal shaft digging and anchoring machine with walking mechanism |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410389581.2A Division CN105370275B (en) | 2014-08-09 | 2014-08-09 | Cantilevered longitudinal axis anchor driving machine and step-by-step construction stage are at lane coal road construction technology |
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| Publication Number | Publication Date |
|---|---|
| CN108150166A CN108150166A (en) | 2018-06-12 |
| CN108150166B true CN108150166B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810104307.4A Pending CN108131139A (en) | 2014-08-09 | 2014-08-09 | A kind of cantilevered longitudinal axis anchor driving machine of the band list scratch board conveyor with distant control function |
| CN201810104318.2A Active CN108131140B (en) | 2014-08-09 | 2014-08-09 | Cantilever type longitudinal shaft digging and anchoring machine with remote control function |
| CN201410389581.2A Expired - Fee Related CN105370275B (en) | 2014-08-09 | 2014-08-09 | Cantilevered longitudinal axis anchor driving machine and step-by-step construction stage are at lane coal road construction technology |
| CN201810104331.8A Active CN108150166B (en) | 2014-08-09 | 2014-08-09 | Cantilever type longitudinal shaft digging and anchoring machine with walking mechanism |
| CN201810104322.9A Active CN108150165B (en) | 2014-08-09 | 2014-08-09 | Cantilever type longitudinal shaft digging and anchoring machine comprising hydraulic control loading mechanism |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810104307.4A Pending CN108131139A (en) | 2014-08-09 | 2014-08-09 | A kind of cantilevered longitudinal axis anchor driving machine of the band list scratch board conveyor with distant control function |
| CN201810104318.2A Active CN108131140B (en) | 2014-08-09 | 2014-08-09 | Cantilever type longitudinal shaft digging and anchoring machine with remote control function |
| CN201410389581.2A Expired - Fee Related CN105370275B (en) | 2014-08-09 | 2014-08-09 | Cantilevered longitudinal axis anchor driving machine and step-by-step construction stage are at lane coal road construction technology |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810104322.9A Active CN108150165B (en) | 2014-08-09 | 2014-08-09 | Cantilever type longitudinal shaft digging and anchoring machine comprising hydraulic control loading mechanism |
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- 2014-08-09 CN CN201410389581.2A patent/CN105370275B/en not_active Expired - Fee Related
- 2014-08-09 CN CN201810104331.8A patent/CN108150166B/en active Active
- 2014-08-09 CN CN201810104322.9A patent/CN108150165B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105370275A (en) | 2016-03-02 |
| CN108131140A (en) | 2018-06-08 |
| CN108150165A (en) | 2018-06-12 |
| CN108150166A (en) | 2018-06-12 |
| CN108131140B (en) | 2020-06-16 |
| CN108131139A (en) | 2018-06-08 |
| CN105370275B (en) | 2018-07-13 |
| CN108150165B (en) | 2020-11-24 |
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