Rotary drilling rig for fishing method construction and its use method

Abstract

The present invention relates to a rotary drilling rig for fishing method construction and a method of using the same, and belongs to the technical field of basic construction equipment. The rotary drilling rig comprises two rotary drilling bodies, a support frame, and a transverse driving mechanism for driving the rotary drilling bodies to move horizontally. The rotary drilling bodies are slidably connected to the horizontal slide rails on the support frame, and the support frame comprises a base and a gantry. A water-permeable casing is movably provided at the lower part of the power head of the rotary drilling body, and when the drill rod descends, the water-permeable casing is driven to descend. In the present invention, the rotary drilling body can be displaced laterally, and the hole position can be changed without moving the support frame, which can improve the construction efficiency. During construction, two rotary drilling bodies work simultaneously, which can improve the construction efficiency by more than two times. The water-permeable casing is used to protect the wall and the clean water construction method is adopted, which does not affect the groundwater quality of the surrounding environment. The present invention is particularly suitable for the bridge machine fishing method and the pier side fishing method without repairing the ground construction access road, which is conducive to protecting the construction environment and can minimize the damage to the environment.

Description

Technical Field

[0001] The invention relates to the technical field of foundation construction equipment, in particular to a rotary drilling rig for fishing method construction and a use method thereof. Background Art

[0002] The rotary drilling rig is a comprehensive drilling rig that can be used in a variety of substrates and has the characteristics of fast hole-making speed, less pollution, and strong mobility. The short spiral drill bit can be used for dry digging, and the rotary drill bit can also be used for wet digging with mud wall protection. The rotary drilling rig can be used with a hammer to break the hard stratum and then dig holes. If it is used with an enlarged head drill, the hole can be enlarged at the bottom of the hole.

[0003] Fishing construction is a commonly used construction method, including bridge crane fishing method, pier side fishing method, etc.

[0004] After the existing rotary drilling machine completes a hole, it needs to move to the next drilling position as a whole, and each movement needs to be re-aligned, which will undoubtedly reduce construction efficiency.

[0005] Moreover, the existing rotary drilling machine can only drill one hole at a time, and the efficiency needs to be improved.

[0006] In addition, during the current bridge construction, it is usually necessary to build a construction access road to carry out the construction of pile foundations and piers. The construction of the construction access road will cause great damage to the environment and have a great impact on the wild animals and plants under the bridge. Summary of the invention

[0007] The invention aims to provide a rotary drilling rig for fishing method construction and a use method thereof, which can improve construction efficiency and protect the environment.

[0008] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] A rotary drilling rig for fishing method construction comprises a rotary drilling rig body, a support frame and a transverse driving mechanism for driving the rotary drilling rig body to move horizontally, wherein the rotary drilling rig body is installed on the support frame.

[0010] Wherein, a horizontal slide rail is provided on the support frame, the rotary drilling rig body is slidably connected to the horizontal slide rail, and the transverse driving mechanism is installed on the support frame.

[0011] Furthermore, the support frame includes a base and a gantry, the bottom of the gantry is fixedly connected to the base, and the base and the gantry are both provided with horizontal slide rails. The bottom of the rotary drill body is slidably connected to the horizontal slide rail on the base, and the side of the rotary drill body is slidably connected to the horizontal slide rail on the gantry.

[0012] Furthermore, the support frame includes a base and a door frame, the bottom of the door frame is fixedly connected to the base, one of the two horizontal slide rails is arranged on the base, and the other horizontal slide rail is arranged on the door frame.

[0013] Furthermore, the rotary drilling rig bodies are provided with two, the two rotary drilling rig bodies are arranged back to back, and each rotary drilling rig body is respectively equipped with a transverse driving mechanism.

[0014] The transverse driving mechanism comprises a transverse motor and a transmission mechanism, and the transmission mechanism is used to convert the rotational motion of the transverse motor into horizontal linear motion of the rotary drilling rig body.

[0015] Wherein, the transmission mechanism is a chain transmission mechanism, or a synchronous belt transmission mechanism, or a screw nut transmission mechanism.

[0016] Furthermore, the rotary drilling rig body includes a drill rod, a power head, a drilling tool and a mast assembly. The mast assembly includes a mast, and the mast is slidably mounted on a support frame.

[0017] Furthermore, the rotary drilling rig body also includes a water-permeable casing, which is detachably mounted on the lower part of the power head; when the drill rod descends, the water-permeable casing can be driven to descend.

[0018] Furthermore, a pressure plate is installed at the lower part of the power head, and the top of the water-permeable protective tube is snap-connected to the pressure plate.

[0019] Furthermore, the rotary drilling rig body has a slide groove adapted to the horizontal slide rail, and the slide groove corresponds to the horizontal slide rail one by one. The slide groove and the slide rail can be quickly assembled and disassembled, which is convenient for separately hoisting the support frame and the rotary drilling rig body during fishing method construction, and can be quickly assembled after hoisting in place.

[0020] The method for performing fishing method pile foundation construction using the above-mentioned rotary drilling rig for fishing method construction comprises the following steps:

[0021] Step 1: The rotary drilling rig for fishing method construction is hoisted into place;

[0022] Step 2, two rotary drilling auger bodies work simultaneously;

[0023] Step 3: After the hole is drilled, lift the drill rod and move the drill body horizontally to the desired position;

[0024] Step 4, hoisting the pile foundation reinforcement cage into the hole;

[0025] Step 5, pouring pile foundation concrete;

[0026] Step 6, if the pile foundation construction is completed, then hoist back the rotary drilling rig used for the fishing method construction; if the pile foundation construction is not completed, then return to step 2.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The rotary drilling rig body of the present invention can be displaced horizontally, and the hole position can be changed without moving the support frame, which can improve the construction efficiency;

[0029] 2. The present invention installs two rotary drills on the support frame, which can drill two holes at the same time, and the construction efficiency is increased by more than two times;

[0030] 3. The drill pipe of the rotary drilling rig is equipped with a permeable casing. When drilling, the permeability of the casing wall balances the water pressure inside and outside the casing, which is conducive to stable hole formation and reduces the risk of hole collapse. The rotary drilling follows closely, using permeable casing and wall protection, and clean water construction methods, which does not affect the groundwater quality of the surrounding environment;

[0031] 4. The rotary drilling rig body and the support frame can be quickly disassembled and connected, which is convenient for installation and disassembly, and is conducive to improving the efficiency of fishing method construction;

[0032] The present invention is particularly suitable for bridge machine fishing and pier side fishing without repairing ground construction access roads, which is beneficial to protecting the construction environment (vegetation and water quality) and can minimize damage to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a side view of the present invention;

[0034] Figure 2 It is a front view of the present invention;

[0035] Figure 3 is a top view of the present invention;

[0036] Figure 4 It is a partial connection diagram of the power head, permeable casing and drill pipe;

[0037] Figure 5 is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0039] like Figure 1 , 2 As shown in Figures 3 and 4, the rotary drilling rig for fishing method construction disclosed in the present invention comprises a rotary drilling body 2, a support frame and a transverse driving mechanism for driving the rotary drilling body 2 to move horizontally. A horizontal slide rail is provided on the support frame, and the rotary drilling body 2 is slidably connected to the horizontal slide rail. The transverse driving mechanism drives the rotary drilling body 2 to move horizontally and linearly to realize transverse displacement of the rotary drilling body 2, thereby realizing rapid hole formation at different positions.

[0040] In this embodiment, the support frame includes a base 1 and a gantry 9. The bottom of the gantry 9 is fixedly connected to the base 1. A lower horizontal slide rail 7 is fixedly installed on the base 1. An upper horizontal slide rail 4 is fixedly installed on the gantry 9. The bottom of the rotary drill body 2 is slidably connected to the lower horizontal slide rail 7. The side of the rotary drill body 2 is slidably connected to the upper horizontal slide rail 4. The transverse driving mechanism is installed on the base 1.

[0041] In this embodiment, the rotary drilling body 2 includes a drill rod 21, a power head 22, a drilling tool 23, a mast assembly, and a water-permeable casing 27. The mast assembly includes a mast 24, a lifting cylinder, a winch 26, and a pulley frame. The power head 22, the lifting cylinder, the winch 26, and the pulley frame are installed on the mast 24, and the lifting cylinder is used to realize the lifting of the power head.

[0042] The mast 24 is slidably mounted on the support frame, and the bottom of the mast 24 has a lower slide groove 6 that is slidably matched with the lower horizontal slide rail 7, and the side wall of the mast 24 has an upper slide groove 3 that is slidably matched with the upper horizontal slide rail 4. The slide groove and the slide rail can be quickly assembled and disassembled, which is convenient for separately hoisting the support frame and the rotary drilling body during fishing method construction, and the slide rails can be correspondingly inserted into the groove after hoisting in place. For more convenient assembly and disassembly, the notches of the lower slide groove 6 and the upper slide groove 3 are both facing downward.

[0043] The wire rope 25 of the winch 26 passes over the pulley at the top of the mast 24 and is connected to the top of the drill rod 21 , and the bottom of the drill rod 21 is connected to the drilling tool 23 .

[0044] like Figure 1 , 4 As shown, in this embodiment, a water-permeable casing 27 is added to the drill rod of the rotary drilling rig body. The water-permeable casing 27 is a circular steel casing, and its wall is provided with water-permeable holes.

[0045] like Figure 4 As shown, the water-permeable casing 27 is detachably mounted at the bottom of the power head 22. When the drill is lifted, the water-permeable casing 27 is separated from the power head 22. When drilling, after the drill bit re-enters the water-permeable casing 27, the water-permeable casing 27 is connected to the power head 22. When the drill rod 21 descends, the water-permeable casing 27 can be driven to descend. When drilling, the water permeability of the casing wall balances the water pressure inside and outside the casing, which is conducive to stable hole formation and reduces the risk of hole collapse.

[0046] In this embodiment, the water-permeable protective tube 27 is detachably connected to the power head 22 by a buckle 28. A pressing plate 29 is installed at the lower part of the power head 22, one end of the buckle 28 is hinged to the pressing plate 29, and the other end of the buckle 28 can be operated to buckle the water-permeable protective tube 27.

[0047] Preferably, the top of the water-permeable casing 27 has a flange, and the buckle 28 is a U-shaped buckle. After the drill enters the water-permeable casing 27, the pressing plate 29 presses the flange of the water-permeable casing 27, and then the flange of the water-permeable casing 27 and the pressing plate 29 are buckled together by the U-shaped buckle; when lifting the drill, the U-shaped buckle can be hammered open to make the water-permeable casing 27 lose its restraint.

[0048] The traverse drive mechanism includes a traverse motor 8 and a transmission mechanism, and the transmission mechanism is used to convert the rotational motion of the traverse motor 8 into horizontal linear motion of the rotary drilling auger body 2. The transmission mechanism is a chain transmission mechanism, a synchronous belt transmission mechanism, a screw nut transmission mechanism, a gear rack mechanism, etc.

[0049] To improve the hole-forming efficiency, two rotary drill bodies 2 can be provided, and each rotary drill body 2 is respectively equipped with a transverse drive mechanism. The two rotary drill bodies 2 are arranged in back-to-back orientation, one is located at the front of the portal frame 9, and the other is located at the back of the portal frame 9.

[0050] In the present invention, the rotary drilling drill body 2 can be moved horizontally on the track of the base 1 under the drive of the horizontal movement motor 8, so that drilling can be performed at different positions. The drilling position can be changed without moving the support frame, which can improve the construction efficiency. Two rotary drilling drills can be installed on the support frame to drill two holes at the same time, which can further improve the construction efficiency.

[0051] The rotary drilling rig body 2 and the support frame can be quickly disassembled and connected, which is convenient for hoisting them separately during fishing method construction, and can be quickly assembled after being hoisted into place.

[0052] The power is transmitted between the traverse motor 8 and the rotary drilling rig body 2 by means of a transmission mechanism. The connection of this part varies depending on the transmission mechanism used. However, this is conventional technology in the field and will not be described in detail here.

[0053] The method of using the above-mentioned fishing method construction rotary drilling rig to carry out fishing method pile foundation construction, such as Figure 5 As shown, the following steps are included;

[0054] Step 1: The rotary drilling rig for fishing method construction is hoisted into place;

[0055] Step 2, two rotary drilling bodies 2 work simultaneously;

[0056] Step 3, after the hole is drilled, the drill rod 21 is lifted and the rotary drilling body 2 is moved horizontally to the next working position;

[0057] Step 4, hoisting the pile foundation reinforcement cage into the hole;

[0058] Step 5, pouring pile foundation concrete;

[0059] Step 6, if the pile foundation construction is completed, then hoist back the rotary drilling rig used for the fishing method construction; if the pile foundation construction is not completed, then return to step 2.

[0060] The present invention is particularly suitable for bridge machine fishing and pier side fishing without repairing ground construction access roads; it is beneficial to protecting the construction environment (vegetation and water quality) and can minimize damage to the environment.

[0061] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. The fishing pile foundation construction method is characterized by: A rotary drilling rig for fishing method construction is used, and the rotary drilling rig for fishing method construction includes a rotary drilling rig body, a support frame and a transverse driving mechanism, and the rotary drilling rig body is slidably mounted on the support frame; The support frame includes a base and a gantry, the bottom of the gantry is fixedly connected to the base, a lower horizontal slide rail is installed on the base, an upper horizontal slide rail is installed on the gantry, the bottom of the rotary drilling body is slidably connected to the lower horizontal slide rail, and the side of the rotary drilling body is slidably connected to the upper horizontal slide rail; the rotary drilling body includes a drill rod, a power head, a drilling tool, a water-permeable casing and a mast assembly, the mast assembly includes a mast, and the mast is slidably installed on the support frame; the bottom of the mast has a lower slide groove that slidably cooperates with the lower horizontal slide rail, and the side wall of the mast has an upper slide groove that slidably cooperates with the upper horizontal slide rail, and the notches of the lower slide groove and the upper slide groove are both facing downward; A pressure plate is installed at the bottom of the power head, a flange is provided at the top of the water-permeable casing, and water-permeable holes are arranged on the wall of the water-permeable casing. The wire rope of the winch passes through the pulley at the top of the mast and is connected to the top of the drill rod, and the bottom of the drill rod is connected to the drilling tool; The rotary drilling auger body is provided with two, the two rotary drilling auger bodies are arranged in back-to-back relation, and each rotary drilling auger body is respectively provided with a transverse driving mechanism; the transverse driving mechanism is installed on the support frame, and is used to drive the rotary drilling auger body to move along the lower horizontal slide rail and the upper horizontal slide rail; The fishing method pile foundation construction method comprises the following steps: Step 1: The rotary drilling rig for fishing method construction is hoisted into place; Step 2, two rotary drilling auger bodies work simultaneously; After the drill bit enters the waterproof casing, the pressure plate presses the flange of the waterproof casing, and then the flange of the waterproof casing and the pressure plate are buckled together by using a U-shaped buckle, and the waterproof casing is driven down when the drill rod descends; Step 3: After the hole is drilled, lift the drill rod and move the drill body horizontally to the right position; when lifting the drill, hammer open the U-shaped buckle; Step 4, hoisting the pile foundation reinforcement cage into the hole; Step 5, pouring pile foundation concrete; Step 6: If the pile foundation construction is completed, the two rotary drilling rig bodies are quickly disassembled, and the rotary drilling rig bodies and the support frame are hoisted back in batches; if the pile foundation construction is not completed, return to step 2.

2. The fishing pile foundation construction method according to claim 1, characterized in that: The transverse driving mechanism comprises a transverse motor and a transmission mechanism, wherein the transmission mechanism is used to convert the rotary motion of the transverse motor into horizontal linear motion of the rotary drilling rig body.

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