A side recovery type excavation support anchor combined unit and its use method

Abstract

A side recovery type excavation support anchor combined unit and its use method, the auxiliary support parts of the equipment are symmetrically distributed on the left and right sides of the main support part, a shoveling channel is left between the main sliding shoe of the main support part and the auxiliary sliding shoe of the auxiliary support part, and a stepping and pushing oil cylinder is connected between the main sliding shoe and the auxiliary sliding shoe; the cutting part is arranged above the main sliding shoe; the shoveling part is located below the cutting part, and the shoveling part is also located in front of the main sliding shoe and in the shoveling channel between the main sliding shoe and the auxiliary sliding shoe; the anchoring support part is located behind the main support part, and an adapter plate is arranged inside the auxiliary sliding shoe of the anchoring support part, and the adapter plate extends from the front end of the auxiliary sliding shoe, and the main sliding shoe of the main support part is hinged with the extended end of the adapter plate. The use method is: start the auxiliary support part and the anchoring support part; step forward and complete the cutting and collecting of coal; start the main support part and disengage the auxiliary support part and the anchoring support part; the auxiliary support part and the anchoring support part step forward together; start the auxiliary support part and the anchoring support part and disconnect the main support part.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine machinery, and in particular relates to a side recovery type excavation support anchor combined unit and a use method thereof. Background Art

[0002] At present, most of the existing comprehensive excavation equipment adopts a crawler walking solution, but the crawler chain has the disadvantages of being easy to damage, difficult to maintain, and easy to slip and sink; in addition, the existing comprehensive excavation equipment adopts an integral top beam solution for temporary support of the tunnel roof, and the integral top beam is prone to inadequate support of the tunnel roof, and during the forward movement, the integral top beam will repeatedly roll the tunnel roof, thereby increasing the risk of secondary crushing and falling of the roof; in addition, the existing comprehensive excavation equipment generates large vibrations during the process of cutting coal and rock, which can cause the equipment body to sway in severe cases, thereby seriously affecting the excavation efficiency.

[0003] The Chinese patent application with application number 201410027478.3 discloses an integrated excavation, support and anchor unit, which is formed by installing the excavation mechanism, temporary support mechanism and permanent support mechanism on a slideway, and providing a walking mechanism under the permanent support mechanism. Although the patent application reforms the simple superposition form of traditional comprehensive excavation equipment, there is still the problem of repeated rolling of the tunnel roof, and the excavation mechanism and temporary support mechanism are both arranged on the slideway. If the amount of dust on the underground working face is large, a large amount of dust piles may easily cause the slideway to get stuck, resulting in the problem of being unable to continue moving forward.

[0004] The Chinese patent application with application number 201611237498.9 discloses a tunnel boring machine that integrates digging, supporting, anchoring and drilling. It arranges anchoring equipment, drilling equipment and temporary support devices on the original tunnel boring machine body to integrate digging, supporting, anchoring and drilling. However, the patent application still adopts a crawler-type walking solution, which has the problems of easy damage, difficult maintenance, easy slipping and sinking. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a side-recovery type tunneling support and anchor combined unit and a method for using the same. The unit adopts a stepping walking method, which effectively solves the problem of repeated crushing of the tunnel roof by the top beam, reduces the risk of secondary crushing and falling of the tunnel roof, effectively improves the vibration amount of the equipment during the coal and rock cutting process, and further improves the tunneling efficiency and tunneling safety. An anchoring support part is independently arranged behind the main support part, and other operations of the tunneling machine will not be affected during the anchoring operation. The shoveling part adopts a side recovery structure to further improve the recovery capacity of fallen coal.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a side-recovery excavation support and anchor combined unit, comprising a cutting part, a shoveling part, a main support part, a secondary support part and an anchor support part; the secondary support part is symmetrically distributed on the left and right sides of the main support part, and a shoveling channel is left between the main slip shoe of the main support part and the secondary slip shoe of the secondary support part, and a stepping cylinder is connected between the main slip shoe of the main support part and the secondary slip shoe of the secondary support part; the cutting part is arranged above the main slip shoe of the main support part; the shoveling part is located below the cutting part, and the shoveling part is simultaneously located in front of the main slip shoe of the main support part and in the shoveling channel between the main slip shoe and the secondary slip shoe; the anchor support part is located behind the main support part, and an adapter plate is arranged inside the auxiliary slip shoe of the anchor support part, the adapter plate extends from the front end of the auxiliary slip shoe, and the main slip shoe of the main support part is hinged to the extended end of the adapter plate.

[0007] A main support cylinder and a main support column are vertically arranged on the main sliding shoe of the main support part, a main support top beam is horizontally arranged on the top of the main support cylinder and the main support column, and the top end of the piston rod of the main support cylinder and the main support column is connected to the lower surface of the main support top beam through a universal ball joint; a retractable main front probe beam is arranged at the front end of the main support top beam, and a main front probe beam pitch adjustment cylinder is connected between the main support top beam and the retractable main front probe beam; a steel belt laying mechanism is arranged on the main support top beam.

[0008] A secondary support cylinder and a secondary support column are vertically arranged on the secondary sliding shoe of the secondary support part, and a secondary support top beam is horizontally arranged on the top of the secondary support cylinder and the secondary support column, and the top end of the piston rod of the secondary support cylinder and the secondary support column is connected to the lower surface of the secondary support top beam through a universal ball joint; a telescopic secondary front probe beam is arranged at the front end of the secondary support top beam, and a secondary front probe beam pitch adjustment cylinder is connected between the secondary support top beam and the telescopic secondary front probe beam; a ground support plate is hinged on the side of the secondary sliding shoe, and a ground support plate attitude adjustment cylinder is connected between the ground support plate and the secondary sliding shoe.

[0009] An auxiliary support column is vertically arranged on the auxiliary sliding shoe of the anchoring support part, an auxiliary support top beam is horizontally arranged on the top of the auxiliary support column, the top end of the piston rod of the auxiliary support column is connected to the lower surface of the auxiliary support top beam through a universal ball joint; an anchor drilling rig is installed on the auxiliary sliding shoe.

[0010] The shovel-carrying part includes a main shovel blade, an auxiliary shovel blade, a scraper conveyor, a tail-swinging transport device and a flexible continuous conveying system; the main shovel blade is connected to the main sliding shoe of the main support part through a shovel blade pushing cylinder; the auxiliary shovel blades are symmetrically distributed on the left and right sides of the main shovel blade, the auxiliary shovel blades are hinged on the main shovel blade, and an auxiliary shovel blade posture adjustment cylinder is connected between the auxiliary shovel blade and the main shovel blade; the scraper conveyor adopts a right-angle turning scraper conveyor, one arm of the scraper conveyor is located on the main shovel blade, and the other arm of the scraper conveyor is located in the shovel-carrying channel between the main sliding shoe and the auxiliary sliding shoe, the feeding end of the tail-swinging transport device is connected to the scraper conveyor, and the discharging end of the tail-swinging transport device is connected to the flexible continuous conveying system.

[0011] The method for using the side recovery type excavation support anchor combined unit comprises the following steps:

[0012] Step 1: The tunnel roof support is completed by the auxiliary support part and the anchor support part;

[0013] Step 2: Control the extension of the stepping cylinder and control the adapter plate to extend forward from the auxiliary sliding shoe, so that the main support part, the shoveling part and the cutting part move forward synchronously. At the same time, the cutting part completes the coal cutting operation, the shoveling part completes the collection and transportation of the fallen coal, and the anchoring support part completes the anchoring operation of the roadway roof and side walls;

[0014] Step 3: Control the extension of the stepping cylinder and the extension of the adapter plate to reach the upper limit value, and complete the cutting operation within the cutting range;

[0015] Step 4: The main support part completes the support of the tunnel roof, and at the same time releases the support of the secondary support part and the anchor support part on the tunnel roof;

[0016] Step 5: Control the stepping cylinder and the adapter plate to retract to the initial position, so that the auxiliary support part and the anchor support part move forward one step at the same time;

[0017] Step 6: The auxiliary support part and the anchor support part complete the tunnel roof support, and at the same time release the support of the main support part to the tunnel roof;

[0018] Step 7: Repeat steps 2 to 6 to achieve continuous step excavation operation.

[0019] Beneficial effects of the present invention:

[0020] The side-recovery type excavation support and anchor combined machine unit and the use method thereof of the present invention adopt a stepping walking method, which effectively solves the problem of repeated crushing of the tunnel roof by the top beam, reduces the risk of secondary crushing and falling of the tunnel roof, and effectively improves the vibration amount of the equipment during the coal and rock cutting process, further improving the excavation efficiency and excavation safety; an anchoring support part is independently arranged behind the main support part, and other operations of the tunneling machine will not be affected during the anchoring operation; the shoveling part adopts a side recovery structure to further improve the recovery capacity of fallen coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a side recovery type excavation support anchor combined unit of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a side recovery type excavation support anchor combined unit (the auxiliary support part and the anchor support part are not shown) of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the auxiliary supporting part of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the anchoring support portion of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the shoveling part of the present invention;

[0026] In the figure, 1 is a cutting part, 2 is a shoveling part, 3 is a main support part, 4 is a secondary support part, 5 is an anchor support part, 6 is a main sliding shoe, 7 is a secondary sliding shoe, 8 is a stepping cylinder, 9 is an auxiliary sliding shoe, 10 is an adapter plate, 11 is a main support cylinder, 12 is a main support column, 13 is a main support top beam, 14 is a retractable main front exploration beam, 15 is a main front exploration beam pitch adjustment cylinder, 16 is a secondary support cylinder, 17 is a secondary support column, 18 is a secondary support column, 19 is a secondary support column, 20 is a secondary support column, 21 is a secondary support column, 22 is a secondary support column, 23 is a secondary support column, 24 is a secondary support column, 25 is a secondary support column, 26 is a secondary support column, 27 is a secondary support column, 28 is a secondary support column, 29 is a secondary support column, 30 is a secondary support column, 31 is a secondary support column, 32 is a secondary support column, 33 is a secondary support column, 34 is a secondary support column, 35 is a secondary support column, 36 is a secondary support column, 37 is a secondary support column, 38 is a secondary support column, 39 is a secondary support column, 40 is a secondary support column, 41 is a secondary support column, 42 is a secondary support column, 43 is a secondary support column, 44 is a secondary support column, 45 is a secondary support column, 46 is a secondary support column, 47 is a secondary support column, 48 is a secondary support column, 49 is a secondary support column, 50 is a secondary support column, 51 is a secondary support column, 52 is a secondary support column, 53 is a secondary support column, 54 is a secondary support column, 55 is a secondary support column, 56 is a secondary support column, 5 Support top beam, 19—retractable auxiliary front exploration beam, 20—auxiliary front exploration beam pitch adjustment cylinder, 21—ground support plate, 22—ground support plate attitude adjustment cylinder, 23—auxiliary support column, 24—auxiliary support top beam, 25—anchor drilling rig, 26—main shovel plate, 27—auxiliary shovel plate, 28—scraper conveyor, 29—tail-swinging transport device, 30—flexible continuous conveying system, 31—shovel plate pushing cylinder, 32—auxiliary shovel plate attitude adjustment cylinder. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 5As shown, a side recovery type excavation support and anchor combined unit comprises a cutting part 1, a scraping part 2, a main support part 3, a secondary support part 4 and an anchoring support part 5; the secondary support part 4 is symmetrically distributed on the left and right sides of the main support part 3, a scraping channel is left between the main slipper 6 of the main support part 3 and the secondary slipper 7 of the secondary support part 4, and a stepping cylinder 8 is connected between the main slipper 5 of the main support part 3 and the secondary slipper 6 of the secondary support part 4; the cutting part 1 is arranged above the main slipper of the main support part 3; the scraping part 2 is located below the cutting part 1, and the scraping part 2 is simultaneously located in front of the main slipper 5 of the main support part 3 and in the scraping channel between the main slipper 5 and the secondary slipper 6; the anchoring support part 5 is located behind the main support part 3, and an adapter plate 10 is arranged inside the auxiliary slipper 9 of the anchoring support part 5, and the adapter plate 10 extends from the front end of the auxiliary slipper 9, and the main slipper 5 of the main support part 3 is hinged to the extended end of the adapter plate 10.

[0029] A main support cylinder 11 and a main support column 12 are vertically arranged on the main sliding shoe 6 of the main support part 3, and a main support top beam 13 is horizontally arranged on the top of the main support cylinder 11 and the main support column 12. The top ends of the piston rods of the main support cylinder 11 and the main support column 12 are connected to the lower surface of the main support top beam 13 through a universal ball joint; a retractable main front probe beam 14 is arranged at the front end of the main support top beam 13, and a main front probe beam pitch adjustment cylinder 15 is connected between the main support top beam 13 and the retractable main front probe beam 14; a steel belt laying mechanism is arranged on the main support top beam 13.

[0030] A secondary support cylinder 16 and a secondary support column 17 are vertically arranged on the secondary slide 7 of the secondary support part 4, and a secondary support top beam 18 is horizontally arranged on the top of the secondary support cylinder 16 and the secondary support column 17, and the top end of the piston rod of the secondary support cylinder 16 and the secondary support column 17 is connected to the lower surface of the secondary support top beam 18 through a universal ball joint; a telescopic secondary front probe beam 19 is arranged at the front end of the secondary support top beam 18, and a secondary front probe beam pitch adjustment cylinder 20 is connected between the secondary support top beam 18 and the telescopic secondary front probe beam 19; a ground support plate 21 is hinged on the side of the secondary slide 7, and a ground support plate attitude adjustment cylinder 22 is connected between the ground support plate 21 and the secondary slide 7.

[0031] An auxiliary support column 23 is vertically provided on the auxiliary sliding shoe 9 of the anchor support part 5, and an auxiliary support top beam 24 is horizontally provided on the top of the auxiliary support column 23. The top end of the piston rod of the auxiliary support column 23 is connected to the lower surface of the auxiliary support top beam 24 through a universal ball joint; an anchor drill rig 25 is installed on the auxiliary sliding shoe 9.

[0032] The shovel transport part 2 includes a main shovel plate 26, an auxiliary shovel plate 27, a scraper conveyor 28, a swing-tail transport device 29 and a flexible continuous transport system 30; the main shovel plate 26 is connected to the main slide 6 of the main support part 3 through a shovel plate pushing cylinder 31; the auxiliary shovel plates 27 are symmetrically distributed on the left and right sides of the main shovel plate 26, the auxiliary shovel plates 27 are hinged on the main shovel plate 26, and an auxiliary shovel plate posture adjustment cylinder 32 is connected between the auxiliary shovel plate 27 and the main shovel plate 26; the scraper conveyor 28 adopts a right-angle turning scraper conveyor, one arm of the scraper conveyor 28 is located on the main shovel plate 26, and the other arm of the scraper conveyor 28 is located in the shovel transport channel between the main slide 5 and the auxiliary slide 6, the feeding end of the swing-tail transport device 29 is connected to the scraper conveyor 28, and the discharging end of the swing-tail transport device 29 is connected to the flexible continuous transport system 30.

[0033] The method for using the side recovery type excavation support anchor combined unit comprises the following steps:

[0034] Step 1: The tunnel roof support is completed by the auxiliary support part 4 and the anchor support part 5;

[0035] Step 2: Control the stepping cylinder 8 to extend, and at the same time control the adapter plate 10 to extend forward from the auxiliary sliding shoe 9, so that the main support part 3, the shovel part 2 and the cutting part 1 move forward synchronously, and at the same time the cutting part 1 completes the coal cutting operation, the shovel part 2 completes the collection and transportation of the fallen coal, and the anchoring support part 4 completes the anchoring operation of the roadway roof and side walls;

[0036] Step 3: Control the extension of the stepping cylinder 8 and the extension of the adapter plate 10 to reach the upper limit value, and complete the cutting operation within the cutting range;

[0037] Step 4: The main support part 3 completes the support of the tunnel roof, and at the same time releases the support of the tunnel roof by the secondary support part 4 and the anchor support part 5;

[0038] Step 5: Control the stepping cylinder 8 and the adapter plate 10 to retract to the initial position, so that the auxiliary support part 4 and the anchor support part 5 move forward one step synchronously;

[0039] Step 6: The auxiliary support part 4 and the anchor support part 5 complete the tunnel roof support, and at the same time release the support of the main support part 3 to the tunnel roof;

[0040] Step 7: Repeat steps 2 to 6 to achieve continuous step excavation operation.

[0041] The solutions in the embodiments are not intended to limit the patent protection scope of the present invention. All equivalent implementations or changes that do not deviate from the present invention are included in the patent scope of this case.

Claims

1. A side recovery type excavation support anchor combined unit, characterized in that: It includes a cutting part, a shoveling part, a main support part, a secondary support part and an anchoring support part; the secondary support part is symmetrically distributed on the left and right sides of the main support part, a shoveling channel is left between the main sliding shoe of the main support part and the secondary sliding shoe of the secondary support part, and a stepping cylinder is connected between the main sliding shoe of the main support part and the secondary sliding shoe of the secondary support part; the cutting part is arranged above the main sliding shoe of the main support part; the shoveling part is located below the cutting part, and the shoveling part is also located in front of the main sliding shoe of the main support part and in the shoveling channel between the main sliding shoe and the secondary sliding shoe; The anchor support part is located behind the main support part, and an adapter plate is arranged inside the auxiliary sliding shoe of the anchor support part, the adapter plate extends from the front end of the auxiliary sliding shoe, and the main sliding shoe of the main support part is hinged to the extended end of the adapter plate; A main support oil cylinder and a main support column are vertically arranged on the main sliding shoe of the main support part, a main support top beam is horizontally arranged on the top of the main support oil cylinder and the main support column, and the top end of the piston rod of the main support oil cylinder and the main support column is connected to the lower surface of the main support top beam through a universal ball joint; a retractable main front probe beam is arranged at the front end of the main support top beam, and a main front probe beam pitch adjustment oil cylinder is connected between the main support top beam and the retractable main front probe beam; a steel belt laying mechanism is arranged on the main support top beam; A secondary support cylinder and a secondary support column are vertically arranged on the secondary sliding shoe of the secondary support part, a secondary support top beam is horizontally arranged on the top of the secondary support cylinder and the secondary support column, and the top end of the piston rod of the secondary support cylinder and the secondary support column is connected to the lower surface of the secondary support top beam through a universal ball joint; a telescopic secondary front probe beam is arranged at the front end of the secondary support top beam, and a secondary front probe beam pitch adjustment cylinder is connected between the secondary support top beam and the telescopic secondary front probe beam; a ground support plate is hinged on the side of the secondary sliding shoe, and a ground support plate attitude adjustment cylinder is connected between the ground support plate and the secondary sliding shoe; An auxiliary support column is vertically arranged on the auxiliary sliding shoe of the anchor support part, an auxiliary support top beam is horizontally arranged on the top of the auxiliary support column, and the top end of the piston rod of the auxiliary support column is connected to the lower surface of the auxiliary support top beam through a universal ball joint; an anchor drill is installed on the auxiliary sliding shoe; The shovel-carrying part includes a main shovel blade, an auxiliary shovel blade, a scraper conveyor, a tail-swinging transport device and a flexible continuous conveying system; the main shovel blade is connected to the main sliding shoe of the main support part through a shovel blade pushing cylinder; the auxiliary shovel blades are symmetrically distributed on the left and right sides of the main shovel blade, the auxiliary shovel blades are hinged on the main shovel blade, and an auxiliary shovel blade posture adjustment cylinder is connected between the auxiliary shovel blade and the main shovel blade; the scraper conveyor adopts a right-angle turning scraper conveyor, one arm of the scraper conveyor is located on the main shovel blade, and the other arm of the scraper conveyor is located in the shovel-carrying channel between the main sliding shoe and the auxiliary sliding shoe, the feeding end of the tail-swinging transport device is connected to the scraper conveyor, and the discharging end of the tail-swinging transport device is connected to the flexible continuous conveying system.

2. The method for using the side recovery type excavation support anchor combined unit according to claim 1 is characterized in that The steps include: Step 1: The tunnel roof support is completed by the auxiliary support part and the anchor support part; Step 2: Control the extension of the stepping cylinder and control the adapter plate to extend forward from the auxiliary sliding shoe, so that the main support part, the shoveling part and the cutting part move forward synchronously. At the same time, the cutting part completes the coal cutting operation, the shoveling part completes the collection and transportation of the fallen coal, and the anchoring support part completes the anchoring operation of the roadway roof and side walls; Step 3: Control the extension of the stepping cylinder and the extension of the adapter plate to reach the upper limit value, and complete the cutting operation within the cutting range; Step 4: The main support part completes the support of the tunnel roof, and at the same time releases the support of the secondary support part and the anchor support part on the tunnel roof; Step 5: Control the stepping cylinder and the adapter plate to retract to the initial position, so that the auxiliary support part and the anchor support part move forward one step at the same time; Step 6: The auxiliary support part and the anchor support part complete the tunnel roof support, and at the same time release the support of the main support part to the tunnel roof; Step 7: Repeat steps 2 to 6 to achieve continuous step excavation operation.

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