A new type of integrated tunneling and support equipment unit

Abstract

The present invention relates to a new type of integrated excavation and support equipment unit, including a main frame, a cutting part arranged on the main frame, the cutting part including a turntable base, a turntable connected to the turntable base, one end of the turntable connected to one end of a cutting arm, and the other end of the cutting arm connected to a cutting head, a scraper conveyor arranged in the middle of the main frame, a pair of guide rails arranged between the turntable base and the main frame, and a turntable base driving device arranged, an anchor drill arranged on the main frame on the side of the turntable base, a guide rail pair and a driving device arranged between the anchor drill base and the main frame, and a hydraulic system is used to make the turntable base and the anchor drill base move on the main frame without interfering with each other. This equipment is mainly used for simultaneous operations such as excavation, temporary support, and permanent support during tunnel excavation, which comprehensively improves the efficiency of tunnel excavation, reduces the labor intensity of workers, and reduces safety hazards.

Description

Technical Field

[0001] The invention relates to a novel excavation and support integrated equipment unit, belonging to the technical field of tunnel excavation machinery. Background Art

[0002] At present, due to the complexity of the underground working environment, and the limitations of narrow space, inconvenient lighting, high temperature and poor environment, there are three common advance support devices for the excavation working face. The first type is a single anchor support device. After the excavation work is completed, the tunnel boring machine retreats to a position outside the cutting area, and a single column is used to temporarily support the empty top area. The anchor drilling rig is carried by manpower to anchor the tunnel permanently. It requires multiple people to cooperate with the anchor drilling rig for support. Personnel are exposed in the empty top area, which poses certain safety risks. The support efficiency is low, the support method is complex, and the labor intensity of workers is increased. The second type is a hydraulic anchor drilling vehicle support device. Due to the limitation of the width of the tunnel, the tunnel boring machine needs to withdraw from the support area after cutting. The position of the tunnel boring machine needs to be repeatedly moved to stagger the channel so that the hydraulic anchor drilling vehicle support device can enter and exit the support area. The anchor drilling vehicle is affected by space and conditions and it is not easy to find the best support position. It is not easy to find the drilling position when the drilling vehicle is operating. The complex operation causes the support time to be too long, which restricts the improvement of tunnel excavation efficiency. The drilling vehicle can only set up a temporary support area in the area, and there are certain safety risks in the support area. The third type of tunnel boring machine onboard support device, this device directly installs the anchor drill on the tunnel boring machine, and moves with the tunnel boring machine. After the excavation and cutting are completed, the temporary support is set up. The support area is small and the full-section support cannot be achieved. The anchor support personnel are still working in the mid-air top area. When the temporary support is set up, the excavation can only be continued after the anchor support is completed. If the tunnel boring machine needs to be moved, the onboard support must be retracted, which seriously affects the excavation work efficiency. The cutting part cannot move in the support area, the operating space is limited, the operating flexibility is poor, and the top support operation cannot be carried out at the same time. The above support devices all have shortcomings, the working method is relatively cumbersome, the temporary support effect is poor, and the work efficiency is low. Summary of the invention

[0003] The technical problem to be solved by the present invention is as follows: The present invention is a new type of integrated excavation and support equipment system that integrates excavation, temporary support, drilling, and permanent anchor support. It greatly reduces the difficulty of tunnel excavation and support, realizes parallel operation of excavation and support, and the excavation and support equipment are transposed for construction, which provides conditions for improving the operating space of each, and realizes fast and efficient excavation guarantee and reduces labor intensity. It can realize a one-machine-to-the-end working mode in the tunnel, avoid intermittent operation in the existing mode, and improve work efficiency. At the same time, the full-section temporary support above the equipment also brings strong safety guarantees to the staff, enhances the safety factor, and greatly improves the safety of excavation and support operations.

[0004] The technical solution of the invention is specifically as follows:

[0005] A novel integrated excavation and support equipment unit comprises a main frame and a cutting part arranged on the main frame, the cutting part comprises a turntable base, a turntable is connected to the turntable base, one end of the turntable is connected to one end of a cutting arm, and the other end of the cutting arm is connected to a cutting head, a scraper conveyor is arranged in the middle of the main frame, a pair of guide rail pairs are arranged between the turntable base and the main frame, and a turntable base driving device is arranged.

[0006] A novel integrated excavation and support equipment unit, wherein an anchor drill is arranged on a main frame on the side of the turntable base, and a guide rail pair and a driving device are arranged between the anchor drill base and the frame.

[0007] A novel integrated excavation and support equipment unit, wherein the anchor drill guide pairs are two and are respectively located on both sides of the turntable base.

[0008] A novel integrated excavation and support equipment unit, wherein each anchor drill guide pair is provided with two anchor drills, with a total of four anchor drills, and the support columns of the four anchor drills constitute a support frame, a ceiling device is arranged on the support frame, and grooves for fixing the anchor beam spacing, construction anchor positioning holes and circular holes for installing anchor plates are arranged on the ceiling device.

[0009] A novel integrated excavation and support equipment unit, wherein the guide rail pair arranged between the turntable base and the main frame includes a slider a arranged on the turntable base and a guide rail b arranged on the main frame, the turntable base driving device includes a turntable hydraulic motor fixed on the turntable base and a gear rail fixed on the main frame, the turntable hydraulic motor output shaft is fixedly connected to a driving gear, and the driving gear is meshed with the gear rail fixed on the main frame.

[0010] A novel integrated excavation and support equipment unit, wherein the anchor drill guide pair includes a guide rail c arranged on the anchor drill base and an anchor drill base slider d arranged on the main frame, the anchor drill base driving device includes an anchor drill base hydraulic motor fixed on the anchor drill base and a chain arranged on the main frame, the output shaft of the anchor drill base hydraulic motor is fixedly connected to a sprocket, and the sprocket is meshed with a chain arranged on the main frame.

[0011] A new type of integrated excavation and support equipment unit, wherein one end of the scraper conveyor is connected to one end of a belt conveyor.

[0012] A new type of integrated excavation and support equipment unit, wherein a hydraulic system and an electrical system are arranged at one end of the scraper conveyor.

[0013] Compared with the prior art, the technical effect of the present invention is that when the tunnel boring machine is in the cutting state, the supporting part can move forward as far as possible to reduce the empty top distance, and the ceiling device plays a temporary support role; after the tunnel boring machine completes the cutting work, the cutting part can retreat backward to increase the space for topping operation; the supporting part is provided with an anchor drill, and after the cutting is completed, the cutting part retreats and the supporting part moves forward, and the anchor drill works to carry out topping; the ceiling device has grooves for fixing the anchor beam spacing, construction anchor positioning holes and circular holes for installing anchor plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the present invention (I).

[0015] Figure 2 This is a schematic diagram of the structure of the present invention (II).

[0016] Figure 3 This is a schematic diagram of the turntable base structure.

[0017] Figure 4 This is a schematic diagram of the structure of the present invention (III).

[0018] Figure 5 This is a schematic diagram of the structure of the present invention (IV).

[0019] Figure 6 This is a schematic diagram of the anchor drill base structure.

[0020] Figure 7 Schematic diagram of anchor drilling structure.

[0021] Figure 8 A schematic diagram of the structure of the guide rail pair and the driving device provided for the turntable base.

[0022] Fig. 9 A schematic diagram of the structure of the guide rail pair and the driving device provided for the anchor drill base.

[0023] Fig.10 This is a schematic diagram of the structure of the present invention (V).

[0024] Fig.11 It is a schematic diagram of the structure of an all-round combined anchor drilling rig.

[0025] Fig.12 It is a connection method for combined support columns.

[0026] Fig.13 It is a structure of a rotary mechanism.

[0027] Fig.14 A structure of a telescopic support rod.

[0028] Fig.15 A top view of a structure of a telescopic support rod. DETAILED DESCRIPTION

[0029] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0031] When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be a centrally disposed component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be a centrally disposed component.

[0032] In addition, it should be understood in the present invention that “longitudinal”, “lateral”, “up”, “down”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside”, “outside” and other indications of orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or original referred to must have this specific orientation or operate with a specific orientation structure, and this should not be understood as a limitation of the present invention.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0034] like Figure 1 , 2 , 3, and 4 show a new type of integrated excavation and support equipment unit, comprising a main frame 1, a cutting unit 2 arranged on the main frame 1, the cutting unit 2 comprising a turntable base 21, the turntable base 21 is rotatably connected to a turntable 22, the A end of the turntable 22 is rotatably connected to the B end of a cutting arm 23, the C end of the cutting arm 23 is rotatably connected to a cutting head 24, a scraper conveyor 3 is arranged in the middle of the main frame 1, a guide rail pair 4 and a turntable base driving device 5 are arranged between the turntable base 21 and the main frame 1, two guide rail pairs 4 are respectively located on both sides of the main frame 1, the turntable base driving device 5 is fixedly connected to the turntable base 21 by bolts, and the turntable base 21 can be moved on the main frame 1 under the drive of the turntable base driving device 5. After the cutting unit 2 completes the cutting work, the turntable base 21 retreats along the guide rail pair 4, and a larger space can be reserved in front for supporting and topping.

[0035] like Figure 5 , 6 A novel integrated excavation and support equipment unit is shown, wherein an anchor drill 6 is slidably connected to the main frame 1 on the side of the slewing table base 21, and a guide pair 7 and a driving device 8 are arranged between the anchor drill base 61 and the frame 1. The anchor drill base 61 can move on the main frame 1 under the drive of the driving device 8.

[0036] like Figure 5 , 6 A new type of integrated excavation and support equipment unit is shown, and the anchor drill 6 is a rotary anchor drill rig, such as the all-round combined anchor drill rig published in the patent document with patent number 982442805.7, which is composed of a support column, a drilling rig and a hydraulic device that provides rotation and propulsion power to them. Its characteristics are that the support column and the drilling rig are integrated with each other, and the support column is composed of a lifting cylinder, a slewing mechanism and a telescopic support rod. The telescopic support rod is on the top, the slewing mechanism is in the middle, and the lifting cylinder is on the bottom, which are movably connected to each other, and the drilling rig is movably connected to the slewing mechanism of the combined support column. The main body of the slewing mechanism is provided with an insertion interface at the lower end, which is movably connected with the lower end of the telescopic support rod and the upper end of the piston rod of the telescopic oil cylinder respectively. A horizontal hole is provided on the main body of the slewing mechanism, and a slewing shaft is provided in the hole. The slewing shaft transmits torque to a pipe sleeve that matches the shaft through a key. The pipe sleeve extends horizontally to the outside of the main body hole and is connected to a clamp composed of two semicircles. The drilling rig body extends into the clamp in the vertical direction. The clamp is fastened by bolts. There is a rotation gap between the pipe sleeve and the aperture of the slewing main body. A bearing is provided between the slewing shaft and the main body hole. The clamp and the pipe sleeve are fixedly connected to a rotating disk. At least one hole is provided on the same diameter of the rotating disk for a rotating pin with a thread at the tail to penetrate. The head of the rotating pin is placed in an annular groove provided on the end face of the slewing main body and is limited by a fixed disk between the annular groove and the rotating disk. The thread at the tail of the rotating pin matches a handle nut, and the tightness of the handle nut acts on the end face of the rotating disk. The telescopic support rod comprises a bamboo-shaped telescopic rod with an outer ring groove, the lower end of the telescopic rod is movably connected with the upper end of the rotating mechanism, a support seat is also provided between the telescopic rod and the supporting sleeve sleeved thereon, the support seat is threadedly connected with the supporting sleeve, a circular ring groove is also provided on the support seat, two semicircular clamping rings in the horizontal direction are provided between the circular ring groove and the outer ring groove of the bamboo-shaped telescopic rod, the thickness of the two semicircular clamping rings corresponds to the width of the two grooves, the outer sides of the two semicircular clamping rings are respectively connected with two horizontal force screws provided on the support seat, and the force screws are matched with handle nuts.

[0037] like Fig.11 The all-round combined anchor drilling and assembling machine shown in the figure has a combined support column composed of three independent parts, namely a lifting cylinder 100, a slewing mechanism 200 and a telescopic support rod 300, which are movably connected to each other.

[0038] like Fig.12The bayonet-type plug-in connection shown in the figure can be quickly assembled and disassembled so that people can carry it down the well. The anchor drill rig 400 is fixed on the slewing mechanism 200 and can rotate 360 ​​degrees with the slewing mechanism. When the hydraulic motor of the drill rig is driven, the output shaft of the hydraulic motor is connected to the hexagonal rod mechanism, and the motor rotation torque is transmitted to the drill rod 500, driving the drill bit to cut and break the rock. The piston rod of the double-telescopic propulsion cylinder is connected to the housing of the hydraulic motor. The propulsion of the cylinder realizes the thrust required in the drilling. When drilling the top plate hole, the function of the drill rig is the same as the currently used single hydraulic laying rod drill rig. When drilling side holes and inclined angle holes, the drill rig only needs to be rotated to the required angle and fixed through the slewing mechanism 200. The reaction force during the operation is borne by the combined support column. Fig.13 In the all-round combined anchor drilling machine shown, the upper and lower ends of the main body 700 of the slewing mechanism are respectively movably connected with the telescopic support rod and the lifting cylinder. By adjusting the telescopic support rod and the lifting cylinder, the slewing mechanism can drive the drilling machine to move up and down to drill any high and low side holes. The slewing shaft 130 is placed in the horizontal center hole of the main body 700, and there is a bearing between the shaft and the hole to ensure flexible rotation. The slewing shaft 130 transmits torque to the pipe sleeve 160 through the key. The pipe sleeve 160 is integrated with the two semicircular clamps 500 outside the main body hole. The clamps tighten the drilling machine 400 with screws. The pipe sleeve 160 of the clamp 500 is welded to the turntable 800 as a whole. Two rotating pins 600 are arranged along the circumference of the turntable 800. The heads of the rotating pins 600 are placed in the annular groove 140 on the side end surface of the main body 700. The heads of the rotating pins 600 are limited in the annular groove 140 by the fixed plate 150. The threaded tail of the rotating pin 600 passes through the rotating disk 800 and is screwed to the handle nut 900. When the handle nut 900 is tightened, the rotating disk 800 is pressed and cannot rotate. When the handle nut is loosened, the rotation of the rotating shaft 130 allows the rotating disk 800 to rotate 360 ​​degrees in the annular groove through the rotating pin 600. When it rotates to the required angle, the handle nut is tightened to drill a side hole of any angle. Fig.14 , 15 The telescopic support rod shown in the figure is composed of a retractable rod 120, a support sleeve 160, a support seat 170, a handle 310, a rotating nut 180, a force screw 210, and a two-semicircle ring locking mechanism 110. When in operation, the telescopic rod 120 is pressed Figure 23 is quickly connected with the rotary mechanism. When the telescopic support rod needs to be extended or shortened, first loosen the handle 310 to drive the nut 18 to rotate. Since the shape of the nut 18 has steps and is limited to the left and right, the force screw 210 is relatively loosened, so that the semicircular ring 110 is moved out of the bamboo-shaped outer ring groove of the telescopic rod 120 and retracted into the circular groove of the support seat 170. At this time, the support sleeve 160 can be moved up or down by the required distance, and the lower end surface 190 of the support seat is aligned with the engraved line 320 set on the telescopic rod. Then, the handle 310 drives the nut 180 to tighten. The force nail 21 inserts the semicircular ring 11 into the bamboo-shaped outer ring groove of the telescopic rod 120. The semicircular ring 110 connects the support seat 170 and the support sleeve 160 connected thereto with the telescopic rod 120 to withstand the reaction force of the drilling rig.

[0039] like Figure 5 , 6 The new type of integrated excavation and support equipment unit shown in the figure has two anchor drill guide rail pairs 7 located on both sides of the turntable base 21, and the movement of the anchor drill base 61 on the main frame 1 does not interfere with the movement of the turntable base 21 on the main frame 1. When the cutting part 2 is working, the anchor drill 6 can also move on the main frame 1 to drill holes.

[0040] like Figure 7 A new type of integrated excavation and support equipment unit is shown, wherein each anchor drill guide pair 7 is provided with two anchor drills 6, and there are a total of 4 anchor drills 6. The support columns 62 of the 4 anchor drills 6 constitute a support frame 63, and a ceiling device 64 is provided on the support frame 63. The ceiling device 64 is provided with a groove 65 for fixing the anchor beam spacing, a construction anchor rod positioning hole 66, and a circular hole 67 for installing an anchor plate. The anchor drill 6 can drill holes in the top plate through the anchor rod positioning hole 66. The support mechanism adjusts the front and rear and upper and lower ranges of the ceiling according to the cycle progress and construction needs, and ties the anchor net and anchor beam in advance. After excavation, the anchor net and anchor beam that have been tied and connected on the ceiling device 64 are directly moved to the support position and lifted up for temporary support and permanent support with anchor rods.

[0041] like Figure 8 A new type of integrated excavation and support equipment unit is shown, wherein the guide rail pair 4 arranged between the turntable base 21 and the main frame 1 includes a slider a arranged on the turntable base 21 and a guide rail b arranged on the main frame, and the turntable base 21 driving device 5 includes a turntable hydraulic motor 25 fixed on the turntable base 21 and a rack 11 fixed on the main frame, and the turntable hydraulic motor output shaft is fixedly connected to the driving gear 26, and the driving gear 26 is meshed with the rack 11 fixed on the main frame.

[0042] like Fig. 9A new type of integrated excavation and support equipment unit is shown, wherein the anchor drill guide pair 7 includes a guide rail c arranged on the anchor drill base 61 and an anchor drill base slider d arranged on the main frame 1, and the anchor drill base driving device 8 includes an anchor drill base hydraulic motor 67 fixed on the anchor drill base 61 and a chain 12 arranged on the main frame 1, and the output shaft of the anchor drill base hydraulic motor 67 is fixedly connected to the sprocket 68, and the sprocket 68 is engaged with the chain 12 arranged on the main frame 1.

[0043] like Fig.10 A new type of integrated excavation and support equipment unit is shown, in which the D end of the scraper conveyor 3 overlaps the E end of the belt conveyor 31.

[0044] like Fig.10 A new type of integrated excavation and support equipment unit is shown, and a hydraulic system 32 and an electrical system 33 are provided at the D end of the scraper conveyor 3.

[0045] The working process of the present invention is as follows (or working principle, or method of use): the cutting part moves to the cutting position through the guide rail pair and the turntable base driving device set between the turntable base and the main frame, and the cutting part works. When the cutting part works, the anchor drill base moves on the guide rail on the main frame to make the ceiling device as close to the cutting surface as possible, forming a temporary support and reducing the empty top distance at the top of the cutting part. After the cutting part completes a working distance, the cutting part moves backward on the guide rail of the main frame and exits the cutting position. The anchor drill moves forward to perform top topping support work. After the anchor drill completes the topping support work, the anchor drill retreats and the cutting part moves forward to complete a working cycle.

[0046] When the top rock structure is good and not prone to collapse, the cutting unit and the anchor drill work at the same time, that is, the cutting operation is carried out without support in the front, and the topping operation is carried out with support in the back, which can ensure uninterrupted and continuous operation of cutting and topping. However, this operation mode is in the empty top operation of the cutting unit, which has certain risks and is only suitable for the situation where the top rock structure is good and not prone to collapse.

[0047] For other contents, please refer to the prior art.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. A new type of integrated excavation and support equipment unit, comprising a main frame, a cutting unit arranged on the main frame, the cutting unit comprising a turntable base, a turntable connected to the turntable base, one end of the turntable connected to one end of a cutting arm, the other end of the cutting arm connected to a cutting head, a scraper conveyor arranged in the middle of the main frame, characterized in that: A pair of guide rails are arranged between the turntable base and the main frame, and a turntable base driving device is arranged. The two guide rails are respectively located on both sides of the main frame. The turntable base driving device is fixedly connected to the turntable base by bolts. The turntable base can move on the main frame under the drive of the turntable base driving device. An anchor drill is arranged on the main frame at the side of the turntable base, a guide rail pair and a driving device are arranged between the anchor drill base and the main frame, and the anchor drill base can be moved on the main frame under the drive of the driving device; The guide rail pair arranged between the turntable base and the main frame includes a slider a arranged on the turntable base and a guide rail b arranged on the main frame, the turntable base driving device includes a turntable hydraulic motor fixed on the turntable base and a gear rail fixed on the main frame, the turntable hydraulic motor output shaft is fixedly connected to the driving gear, and the driving gear is meshed with the gear rail fixed on the main frame; The anchor drill guide pair includes a guide rail c arranged on the anchor drill base and an anchor drill base slider d arranged on the main frame. The anchor drill base driving device includes an anchor drill base hydraulic motor fixed on the anchor drill base and a chain arranged on the main frame. The output shaft of the anchor drill base hydraulic motor is fixedly connected to a sprocket, and the sprocket is engaged with the chain arranged on the main frame.

2. A new type of integrated excavation and support equipment unit as claimed in claim 1, characterized in that: The anchor drill guide rail pairs are two and are respectively located on both sides of the turntable base.

3. A new type of integrated excavation and support equipment unit as claimed in claim 2, characterized in that: Each anchor drill guide pair is provided with two anchor drills, with a total of four anchor drills. The support columns of the four anchor drills constitute a support frame, on which a ceiling device is provided. The ceiling device is provided with grooves for fixing the anchor beam spacing, construction anchor positioning holes and circular holes for installing anchor plates.

4. A new type of integrated excavation and support equipment unit as claimed in claim 1, characterized in that: One end of the scraper conveyor is connected to one end of the belt conveyor.

5. A new type of integrated excavation and support equipment unit as claimed in claim 1, characterized in that: A hydraulic system and an electrical system are arranged at one end of the scraper conveyor.

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