Multi-hole water grinding and drilling system with movable rack

Abstract

The utility model discloses a movable rack porous water drill system, which comprises a rack, a water drill mechanism, a support mechanism and a traveling mechanism, the rack is provided with an arch frame mounting position, the water drill mechanism is arranged at the arch frame mounting position and is used for drilling the outer circumferential surface of a tunnel, and the support mechanism is used for supporting the water drill mechanism. The supporting mechanism is arranged at the bottom of the rack and used for supporting the rack, and the walking mechanism is arranged at the bottom of the rack and used for moving the rack. The movable type rack multi-hole water milling drill system has the advantages of being high in construction efficiency, smooth in excavation section and small in disturbance.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel excavation equipment technical field especially relates to a movable gantry multi-hole water drill system. BACKGROUND

[0002] The currently used non-explosive excavation process is to directly excavate the tunnel face by a breaking hammer excavator, the breaking hammer excavator is an independent large mechanical equipment, and the bucket is replaced by a breaking hammer on the basis of a traditional heavy-duty excavator, which is a mature equipment on the market. A single water drill is used to drill the tunnel face in a small tunnel, and a hydraulic splitting machine is used to split the remaining tunnel face to remove the slag. The breaking hammer excavator has the problems of large noise, heavy dust, and low construction efficiency. The use of large mechanical equipment disturbs the surrounding geology, and the tunnel excavation face has problems such as over-excavation and under-excavation. The water drill drills the tunnel face, and then the hydraulic splitting machine splits the tunnel face, and the workers manually remove the rock mass to remove the slag, which has the problems of high labor intensity and low construction efficiency. SUMMARY

[0003] The utility model aims at at least in certain extent solves one of the technical problems in the prior art. For this purpose, the embodiment of the utility model provides a movable gantry multi-hole water drill system, which has the advantages of high construction efficiency, smooth excavation section, and small disturbance.

[0004] The movable gantry multi-hole water drill system according to the embodiment of the utility model comprises a gantry, a water drill mechanism, a supporting mechanism, and a walking mechanism, the gantry is provided with an arch installation position, a plurality of water drill mechanisms are arranged at the arch installation position to drill the outer circumferential surface of the tunnel, the supporting mechanism is arranged at the bottom of the gantry to support the gantry, and the walking mechanism is arranged at the bottom of the gantry to move the gantry.

[0005] The movable gantry multi-hole water drill system according to the embodiment of the utility model has the advantages of high construction efficiency, smooth excavation section, and small disturbance.

[0006] In some embodiments, the supporting mechanism comprises a supporting shoe, a connecting block, an inner guide column, an outer guide column, a horizontal moving oil cylinder, and a telescopic oil cylinder, the output end of the horizontal moving oil cylinder is pivotally connected with the supporting shoe, the other end of the horizontal moving oil cylinder is connected with the connecting block, the connecting block is located at the top of the supporting shoe and is slidably connected with the supporting shoe, the connecting block is connected with the inner guide column, at least part of the inner guide column enters the outer guide column and is slidably connected with the outer guide column, and the two ends of the telescopic oil cylinder are respectively connected with the inner guide column and the outer guide column.

[0007] In some embodiments, a sliding block is arranged on the sidewall of the inner guide column, and a sliding groove is arranged on the inner wall of the outer guide column, and the sliding block and the sliding groove are in sliding fit.

[0008] In some embodiments, the walking mechanism comprises a motor, a reduction box and walking wheels, the motor is in driving connection with the reduction box, the reduction box is in driving connection with the walking wheels, and the reduction box is connected with the bottom of the rack.

[0009] In some embodiments, the water drilling mechanism is arranged on a water drilling execution mechanism on a ring track frame, the water drilling execution mechanisms are uniformly distributed on the ring track frame, the ring track frame is located at the arch mounting position and is connected with the rack, and the water drilling execution mechanisms are in slidable connection with the ring track frame.

[0010] In some embodiments, the water drilling execution mechanism comprises a drill cylinder, a guide frame, a motor seat, a first motor and a second motor arranged on the motor seat, a first guide rail is arranged on the guide frame, the motor seat is in slidable connection with the first guide rail, the first motor is in driving connection with the drill cylinder, a gear is arranged on the output end of the second motor, a rack is arranged on the first guide rail, the gear is in meshing connection with the rack, and the second motor is used to drive the motor seat to move along the first guide rail relative to the guide frame.

[0011] In some embodiments, a screw rod and upper and lower guide rails are arranged on the guide frame, the end of the first guide rail is in slidable connection with the upper and lower guide rails, the screw rod is in pivotable connection with the guide frame, and the screw rod is in threaded connection with the first guide rail to drive the first guide rail to move in a second direction relative to the guide frame.

[0012] In some embodiments, a wheel set is arranged at the two ends of the guide frame, the wheel set is in slidable fit with the sliding rail of the ring track frame, a side shifting structure is arranged on the ring track frame, the side shifting structure comprises a hand-operated hoist and a fixing frame, the fixing frame is in fixed connection with the ring track frame, the fixing frame corresponds to the water drilling execution mechanism, and the hand-operated hoist is connected with the guide frame to drive the guide frame to move in a third direction.

[0013] In some embodiments, a plurality of climbing ladders and a plurality of walkway plates are arranged on the rack, and the climbing ladders and the walkway plates are located on the two sides of the rack. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the movable rack multi-hole water drilling system according to the embodiments of the present application.

[0015] Figure 2is a use state schematic diagram of the movable gantry multi-hole water drilling system according to the embodiment of the utility model.

[0016] Figure 3 is a structure schematic diagram of the water drilling actuator of the movable gantry multi-hole water drilling system according to the embodiment of the utility model.

[0017] Fig. 1 is a gantry; 2 is a water drilling actuator; 21 is a drilling cylinder; 22 is a guide frame; 23 is a motor base; 24 is a first motor; 25 is a second motor; 26 is a first guide rail; 261 is a rack; 27 is a screw rod; 28 is an up-down guide rail; 29 is a wheel set; 3 is a supporting mechanism; 4 is a walking mechanism; 5 is an annular track frame. DETAILED DESCRIPTION

[0018] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0019] The movable gantry multi-hole water drilling system according to the embodiment of the utility model, the movable gantry multi-hole water drilling system includes a gantry 1, a water drilling mechanism, a supporting mechanism 3 and a walking mechanism 4, the gantry 1 is provided with an arch installation position, a plurality of water drilling mechanisms are arranged at the arch installation position to drill holes on the outer circumferential surface of the tunnel, the supporting mechanism 3 is arranged at the bottom of the gantry 1 to support the gantry 1, and the walking mechanism 4 is arranged at the bottom of the gantry 1 to move the gantry 1. The plurality of water drilling mechanisms integrated on the gantry 1 can fit the tunnel section contour line, and the plurality of holes are drilled at the same time, the core is taken at the same time, a plurality of holes are constructed at one time, the drilling efficiency is greatly improved, the free surface is quickly formed, and the working efficiency of the subsequent breaking hammer excavator is improved. The plurality of water drilling mechanisms can be arranged along the excavation contour line on the gantry 1, and the continuous channel excavated will not have overbreak and underbreak problems, and the excavation section is flat, facilitating the installation of the subsequent steel arch and mesh.

[0020] The movable gantry multi-hole water drilling system according to the embodiment of the utility model has the advantages of high construction efficiency, flat excavation section and small disturbance.

[0021] In some embodiments, the supporting mechanism 3 includes a supporting shoe, a connecting block, an inner guide column, an outer guide column, a horizontal moving oil cylinder and a telescopic oil cylinder, the output end of the horizontal moving oil cylinder is pivotably connected with the supporting shoe, the other end of the horizontal moving oil cylinder is connected with the connecting block, the connecting block is located at the top of the supporting shoe and is slidably connected with the supporting shoe, the connecting block is connected with the inner guide column, at least part of the inner guide column enters the outer guide column and is slidably connected with the outer guide column, and the two ends of the telescopic oil cylinder are respectively connected with the inner guide column and the outer guide column.

[0022] Specifically, the support mechanism 3 can have four, respectively arranged at the four corners of the gantry 1, and can realize the up-down telescoping and left-right horizontal movement of the gantry 1. The telescopic oil cylinder cooperates with the inner guide column and the outer guide column to realize the up-down telescoping of the gantry 1, and the horizontal movement oil cylinder cooperates with the support shoe and the connecting block to realize the left-right horizontal movement of the gantry 1, thereby realizing the posture adjustment of the gantry 1 in the tunnel. The support shoe is made of wear-resistant material to cope with the friction of complex ground. The connection mode of the inner guide column and the outer guide column ensures the stability of the support. The wear-resistant support shoe improves the reliability of the support mechanism 3 under various ground conditions. Stable support ensures the stability of the gantry 1 during drilling, reduces work vibration, and improves drilling accuracy. The bearing capacity of the support mechanism 3 in the up-down direction can be 5t, and when the support mechanism 3 moves left and right, the ground friction coefficient should be considered to meet the 6t propulsion resistance.

[0023] In some embodiments, a sliding block is arranged on the side wall of the inner guide column, and a sliding groove is arranged on the inner wall of the outer guide column, and the sliding block and the sliding groove are in sliding cooperation.

[0024] Specifically, the inner guide column and the outer guide column are sleeved together, and the sliding block slides in the sliding groove on the inner wall of the outer guide column to ensure the movement trajectory of the outer guide column relative to the inner guide column, avoid the inclination of the outer guide column, and make the gantry 1 ascend and descend more stably.

[0025] In some embodiments, the walking mechanism 4 includes a motor, a reduction box and walking wheels, the motor is in transmission connection with the reduction box, the reduction box is in transmission connection with the walking wheels, and the reduction box is connected with the bottom of the gantry 1.

[0026] Specifically, the reduction box can be a double-stage reduction box, the walking wheels can include a driving wheel and a driven wheel, the tire is a solid rubber wheel, and the reduction box is connected with the driving wheel through double-row chain transmission. The walking mechanism 4 drives the tire to run through the motor to realize the movement of the gantry 1 in the tunnel.

[0027] In some embodiments, the water drill mechanism includes water drill actuators 2 arranged on the annular track frame, the water drill actuators 2 are uniformly distributed on the annular track frame, the annular track frame is located at the arch installation position and connected with the gantry 1, and the water drill actuators 2 are slidably connected with the annular track frame.

[0028] Specifically, the annular track frame is used to arrange the water drill actuators 2, the water drill actuators 2 are used to drill holes on the outer circumferential surface of the tunnel to form an outer circumferential free surface, the annular track frame is composed of front and rear two tracks to provide a stable support for the water drill actuators 2 to drill holes, and the annular track frame can be connected in sections to be detachable, facilitating replacement according to the size of the section. The annular track frame is divided into six zones, and one water drill actuator 2 is arranged in each zone to drill holes.

[0029] In some embodiments, the water mill drill executor 2 comprises a drill cylinder 21, a guide frame 22, a motor base 23, a first motor 24 and a second motor 25 arranged on the motor base 23, a first guide rail 26 arranged on the guide frame 22, the motor base 23 being slidably connected with the first guide rail 26, the first motor 24 being drivingly connected with the drill cylinder 21, a gear being arranged on an output end of the second motor 25, a rack 261 being arranged on the first guide rail 26, the gear being engaged with the rack 261, and the second motor 25 being used to drive the motor base 23 to move along the first guide rail 26 relative to the guide frame 22.

[0030] Specifically, the first guide rail 26 on the guide frame 22 is used to guide the drill cylinder 21 to drill a hole in a tunnel, the first motor 24 is used to drive the drill cylinder 21 to rotate, and eight or other number of diamond drill bits can be arranged on the drill cylinder 21 and welded and fixed by using a high-frequency welding machine, and the diamond drill bits are replaced every 2m in the drilling process to ensure the drilling efficiency. The rack 261 is engaged with the gear, the second motor 25 drives the gear to rotate, and the motor base 23 can be driven to move relative to the rack 261, so that the drill cylinder 21 moves on the first guide rail 26, and the drilling operation of the water mill drill executor 2 is realized. The first motor 24 can be a water-cooled motor, and water is sprayed from the center of the drill cylinder 21. The second motor 25 is driven by a reversible motor.

[0031] In some embodiments, a lead screw 27 and an up-and-down guide rail 28 are arranged on the guide frame 22, an end of the first guide rail 26 is slidably connected with the up-and-down guide rail 28, the lead screw 27 is pivotally connected with the guide frame 22, and the lead screw 27 is threadedly connected with the first guide rail 26 to drive the first guide rail 26 to move along a second direction relative to the guide frame 22.

[0032] Specifically, the lead screw 27 and the up-and-down guide rail 28 are cooperated to realize the moving away and moving close of the first guide rail 26 relative to the annular track frame, the lead screw 27 is rotatably connected with the guide frame 22, the lead screw 27 is threadedly connected with the first guide rail 26, and rotating the lead screw 27 can make the first guide rail 26 move away from or move close to the guide frame 22, so as to change and adjust the drilling position. The lead screw 27 can be arranged at two ends of the guide frame 22, so that the movement of the first guide rail 26 is more stable.

[0033] In some embodiments, a wheel set 29 is arranged at two ends of the guide frame 22, the wheel set 29 is slidably matched with the slide rail of the annular track frame, a side shifting structure is arranged on the annular track frame, the side shifting structure comprises a hoist and a fixing frame, the fixing frame is fixedly connected with the annular track frame, the fixing frame corresponds to the water mill drill executor 2, and the hoist is connected with the guide frame 22 to drive the guide frame 22 to move along a third direction.

[0034] Specifically, the wheel set 29 arranged at the end of the guide frame 22 can make the guide frame 22 slide along the ring track frame, realize the change of the position of the water mill drill actuator 2 on the ring track frame, realize the sequential operation of multiple drill holes, the side shift structure is used to drive the water mill drill actuator 2 to move on the ring track frame, and the chain hoist drives the water mill drill actuator 2 to move a distance of the diameter of a drill hole at a time. After the wheel set 29 drives the guide frame 22 to move to the target position, the water mill drill actuator 2 can be fixed with the ring track frame through bolt fastening in the third direction, i.e., the circumferential direction of the ring track frame. The chain hoist force point is arranged on the first guide rail 26.

[0035] In some embodiments, a plurality of ladders and a plurality of walkway plates are arranged on the gantry 1, and the ladders and the walkway plates are located on both sides of the gantry 1.

[0036] Specifically, the specifications of the gantry 1 are width 6725 mm, height 5060 mm, and length 5125 mm, the internal clearance of the gantry 1 is width 4400 mm and height 5100 mm, and the width of the arch mounting area is 3 m.

[0037] The working process of the mobile gantry multi-hole water mill drill system is as follows:

[0038] The gantry 1 is self-walked to the tunnel face, the attitude of the gantry 1 is adjusted through the up-down extension and left-right transverse movement of the support mechanism 3, it is ensured that the center of the gantry 1 is consistent with the center of the tunnel, and the support force is provided by the four support mechanisms 3.

[0039] Six groups of water mill drill actuators 2 are arranged on the ring track frame for adjustment and positioning, and two groups are arranged at the bottom to drill holes on the outer circumferential surface of the tunnel, the drilling depth is 1 m, the outer circumferential free surface of the tunnel is formed, there are 160 holes in total, and the drilling efficiency of a single hole is 5 min / hole.

[0040] The height of the water mill drill actuator 2 is reduced, it is ensured that the size of the gantry 1 is lower than the internal size of the early primary support, the mobile gantry 1 is retreated, the drill rig reaches the excavation face to crush, the excavation distance is 1 m, and the slag is discharged through the loader and the dump truck after excavation.

[0041] The drill rig retreats, the gantry 1 moves forward, and a cycle of “drilling + excavation + slag discharge” is formed. The excavation distance is 1 m each time, the cycle is repeated for three times, and the primary support is provided for the excavated tunnel. Compared with the conventional water mill drill excavation, the excavation distance can reach 0.8 m by using the mobile gantry multi-hole water mill drill system, and the improvement is 60%. Taking 100 drill holes per cycle as an example, the time for completing each cycle in sandy mudstone and sandstone is 3 h and 5 h respectively, and the time is saved by 50% and 30% respectively.

[0042] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0043] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0044] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0046] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0047] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A mobile gantry porous water abrasive blasting system, characterized by, The utility model relates to a tunnel water jet drilling device, which comprises a rack, a water jet drilling mechanism, a supporting mechanism and a walking mechanism. The supporting mechanism comprises a supporting shoe, a connecting block, an inner guide column, an outer guide column, a horizontal moving oil cylinder and a telescopic oil cylinder. The inner guide column is provided with a sliding block on the side wall, and the outer guide column is provided with a sliding groove on the inner wall. The walking mechanism comprises a motor, a speed reducer and a walking wheel. The water jet drilling mechanism comprises a water jet drilling execution mechanism arranged on a ring track frame.

2. The mobile gantry multi-hole water jet drilling system of claim 1, wherein, The water jet drilling execution mechanism comprises a drill cylinder, a guide frame, a motor seat, a first motor and a second motor arranged on the motor seat.

3. The mobile gantry, multi-hole water jet drilling system of claim 2, wherein, The guide frame is provided with a first guide rail, and the motor seat is slidably connected with the first guide rail.

4. The mobile gantry multi-hole water jet drilling system of claim 1, wherein, The first motor is in transmission connection with the drill cylinder.

5. The mobile gantry multi-hole water jet drilling system of claim 1, wherein, The second motor is provided with a gear on the output end, and the first guide rail is provided with a rack.

6. The mobile gantry multi-hole water jet drilling system of claim 5, wherein, The second motor is used to drive the motor seat to move along the first guide rail relative to the guide frame.

7. The mobile gantry, multi-hole water jet drilling system of claim 6, wherein, The guide frame is provided with a screw rod and an up-down guide rail.

8. The mobile gantry, multi-hole water jet drilling system of claim 6, wherein, The end of the first guide rail is slidably connected with the up-down guide rail.

9. The mobile gantry multi-hole water jet drilling system of claim 1, wherein, The screw rod is pivotally connected with the guide frame and is in threaded connection with the first guide rail to drive the first guide rail to move in a second direction relative to the guide frame. The guide frame is provided with a wheel set at both ends. The wheel set is slidably connected with the sliding rail of the ring track frame. The ring track frame is provided with a side moving structure. The side moving structure comprises a hand-operated hoist and a fixing frame. The fixing frame is fixedly connected with the ring track frame and corresponds to the water jet drilling execution mechanism. The hand-operated hoist is connected with the guide frame to drive the guide frame to move in a third direction. The rack is provided with a plurality of climbing ladders and a plurality of walkway plates. The climbing ladders and the walkway plates are located on both sides of the rack.

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