Combined MJS pile machine and construction method thereof

Abstract

The invention discloses a combined type MJS pile driver and a construction method thereof, and relates to the field of MJS pile driver application, the combined type MJS pile driver comprises pile driving equipment and a newly added drill rod, one side of the pile driving equipment is provided with a lifting air cylinder, the end of the lifting air cylinder is connected with a movable multi-connecting-rod assembly, and one end of the movable multi-connecting-rod assembly is provided with a mounting bracket; the mounting support comprises a fixing frame connected with the disc, and the two ends of the fixing frame are each provided with a fixing assembly used for fixing a newly-added drill rod. According to the device, the mounting bracket and the multiple fixing assemblies are arranged and can be used for storing the newly-added drill rod and assisting dismounting and mounting of the newly-added drill rod, the fixing assemblies have a clamping effect on the newly-added drill rod, and after the newly-added drill rod is fixed by the fixing assemblies, the driving assembly drives the driving rod to rotate, so that mounting of the newly-added rod is efficient and safe; the position of the installation support can be adjusted through the movable multi-connecting-rod assembly, so that the installation support can drive the newly-added rod to move to the installation position, time and labor are saved, and the installation efficiency of the drill rod is improved.

Description

Technical Field

[0001] The present invention relates to the field of MJS pile drivers, and particularly to a combined MJS pile driver and its construction method. Background Art

[0002] The MJS method, namely the all-round high-pressure jet grouting method, has developed a unique multi-hole pipe and a front-end device on the basis of the traditional high-pressure jet grouting process. At the same time, a series of processes such as the batching, pressure feeding, jetting, formation cutting and mixing, forced mud discharging, and centralized mud of hardening materials such as cement are taken as the monitoring objects.

[0003] When the MJS pile driver is working, it mainly includes construction preparation, pilot hole drilling, jet grouting, lifting and pulling back, etc. When the pile driver is working, the installation of drill pipes is involved. Threaded connections are usually used between multiple drill pipes. The driving component of the pile driver is connected to an active rod, and the staff threads the drill pipe and the active rod together, and then the driving component moves to push the drill pipe into the interior of the rock wall. As the drill pipe gradually penetrates into the interior of the rock wall, additional drill pipes need to be added between the active rod and the drill pipe to achieve the purpose of extending the drill pipe and ensure that the depth of the drill hole reaches the specified requirements.

[0004] When the MJS pile driver is working, the installation of the drill pipe often requires the assistance of staff. The drill pipe has a certain weight. Whether it is a horizontal pile driver or a vertical pile driver, the efficiency of the staff in installing the drill pipe is low and it is time-consuming and laborious. Moreover, the drill pipe needs to be installed and disassembled. Disassembling the drill pipe requires removing the threaded connection between the drill pipes. Removing the threaded connection of the drill pipe requires the reverse drive of the driving component and fixing the drill pipe to be disassembled at the same time. When the driving component drives the active rod or the drill pipe to rotate in the reverse direction to release the threaded connection, the torque is large. The staff uses a wrench to fix the drill pipe, which is relatively dangerous. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a combined MJS pile driver and its construction method to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined MJS pile driver, comprising a pile driving device and an additional drill rod, a lifting cylinder is arranged on one side of the pile driving device, and a movable multi-link assembly is connected to the end of the lifting cylinder, and a support column is movably installed on one end of the movable multi-link assembly, a disc is rotatably connected to the top of the support column, and a mounting bracket is installed on the top of the disc, the mounting bracket comprises a fixing frame connected to the disc, and fixing components for fixing the additional drill rod are arranged at both ends of the fixing frame, and the fixing components are arranged at both ends of the fixing frame. The component includes a U-shaped frame, and two groups of clamping blocks are symmetrically arranged on the inner side of the U-shaped frame, and the sides of the two groups of clamping blocks are provided with threaded rods, the outsides of the two groups of threaded rods are threadedly connected with threaded sleeves, and the threaded sleeves and the U-shaped frame are rotatably connected, and the outsides of the two groups of threaded sleeves are provided with worm gears, both sides of the U-shaped frame are rotatably connected with worms, and the two groups of worms are respectively meshed with the two groups of worm wheels, and the side of the U-shaped frame is rotatably connected with a second bevel gear, and the second bevel gear and the two groups of worms are respectively connected by transmission through the sprocket assemblies.

[0007] By adopting the above technical scheme, by setting up a mounting bracket and multiple groups of fixing components, it can be used to store and accommodate newly added drill rods and assist in the disassembly and installation of newly added drill rods. The fixing component has the function of clamping and fixing the newly added drill rod. When the newly added drill rod is fixed by the fixing component, the driving component drives the active rod to rotate, making the disassembly and installation of the newly added rod convenient, efficient and safe. Multiple groups of fixing components are installed on the mounting bracket, and then multiple groups of newly added drill rods are engaged with the mounting bracket through the fixing components, and the mounting bracket can adjust the position through the movable multi-link assembly, so the mounting bracket can drive the newly added rod to move to the installation position, saving time and effort and improving the installation efficiency of the drill rod.

[0008] The present invention is further configured such that the mounting brackets are provided with multiple groups, and the multiple groups of mounting brackets are evenly distributed on the top of the disc, the top of the fixing bracket is rotatably connected with a transmission shaft, and two groups of first bevel gears are provided on the outside of the transmission shaft, and the two groups of first bevel gears are respectively meshed with two groups of second bevel gears corresponding to each other, and a rotary valve is provided on the top of the transmission shaft.

[0009] Preferably, multiple groups of mounting brackets are provided, and two groups of fixing components for clamping and fixing newly added drill rods are provided on the sides of each group of mounting brackets, so that multiple groups of mounting brackets can engage multiple groups of newly added drill rods, and each group of mounting brackets is provided with a transmission shaft and a first bevel gear for driving the fixing components to work.

[0010] The present invention is further configured such that a guide rod is provided on the side of the clamping block, and the guide rod and the U-shaped frame are movably interpenetratingly arranged.

[0011] Preferably, the movement of the clamping block can be limited by providing a guide rod.

[0012] The present invention is further configured such that a plurality of anti-slip teeth for increasing friction are provided inside the clamping block.

[0013] Preferably, by providing a plurality of anti-slip teeth inside the clamping block, the clamping effect of the clamping block on the newly added drill pipe is better.

[0014] The present invention is further configured such that the pile driving device includes a carrier vehicle, a lifting assembly is provided on the side of the carrier vehicle, and a mounting table is connected to the side of the lifting assembly. A driving assembly is provided on the top of the mounting table, and the output end of the driving assembly is connected to a driving rod.

[0015] Preferably, by providing a driving assembly to drive the driving rod to rotate, the purpose of drilling of the pile driving device is achieved.

[0016] The present invention is further configured such that a rod holder is provided on the side of the carrier vehicle. The rod holder can clamp and fix the newly added drill pipe. A platform is provided on the side of the carrier vehicle.

[0017] Preferably, by providing a platform on the side of the carrier vehicle, a foothold can be provided for the staff. Since the newly added drill pipe often has a certain length, it is more convenient for the staff to stand on the platform and install the newly added drill pipe with the help of the mounting bracket and the fixing assembly.

[0018] A construction method for a combined MJS pile driver, the process of which includes the following steps:

[0019] S1: First, carry out construction preparation work, move the pile driving device to the working area, and then debug the equipment for the work of the pile driving device;

[0020] S2: Then engage the rod head for drilling into the rod holder, and then the staff pulls the mounting bracket to move a set of newly added drill pipes below the driving rod, and adjusts the height of the newly added drill pipe to be installed by controlling the lifting cylinder;

[0021] S3: Start the driving assembly to drive the driving rod to rotate slowly, and start the lifting assembly to push the driving rod downward, so that the driving rod and the newly added drill pipe are threadedly connected together. Then rotate the corresponding rotary valve to drive the transmission shaft to rotate, thereby opening the two fixing assemblies for fixing and clamping the newly added drill pipe;

[0022] S4: Continue to control the lifting assembly and the driving assembly to push the driving rod to rotate and descend, then the driving rod will drive the installed newly added drill pipe to rotate and descend synchronously, so that the other end of the newly added drill pipe is threadedly connected to the rod head in the rod holder, and the drill pipe equipment continues to penetrate into the rock wall for drilling.

[0023] In summary, the present invention mainly has the following beneficial effects:

[0024] The present invention can be used for storing new drill pipes and assisting in the disassembly and installation of new drill pipes by setting an installation bracket and multiple sets of fixing components. The fixing components play a role in clamping and fixing the new drill pipes. After the new drill pipes are fixed by the fixing components, the driving component drives the driving rod to rotate, making the disassembly and installation of the new drill pipes convenient, efficient and safe. The multiple sets of fixing components are installed on the installation bracket. Furthermore, the multiple sets of new drill pipes are clamped to the installation bracket through the fixing components, and the installation bracket can adjust its position through the movable multi-link component. Therefore, the installation bracket can drive the new drill pipes to move to the installation position, saving time and effort and improving the installation efficiency of the drill pipes. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the connection between the lifting cylinder and the movable multi-link component of the present invention;

[0027] Figure 3 is a schematic diagram of the connection between the support column, the disc and the installation bracket of the present invention;

[0028] Figure 4 is a schematic diagram of the connection between the support column and the disc of the present invention;

[0029] Figure 5 is a schematic diagram of the structure of the installation bracket of the present invention;

[0030] Figure 6 is a schematic diagram of the connection between the installation bracket, the new drill pipe and the fixing component of the present invention;

[0031] Figure 7 is a schematic diagram of the structure of the fixing component of the present invention;

[0032] Figure 8 is a schematic diagram of the connection between the clamping block, the guide rod and the threaded rod of the present invention.

[0033] Description of the Reference Numerals:

[0034] 1, Piling Equipment; 101, Carrier Vehicle; 102, Lifting Component; 103, Driving Component; 104, Installation Table; 105, Driving Rod; 106, Rod Body Clamp; 107, Platform; 2, Lifting Cylinder; 3, Movable Multi-link Component; 4, Support Column; 5, Disc; 6, Installation Bracket; 601, Fixed Frame; 602, Transmission Shaft; 603, First Bevel Gear; 604, Rotary Valve; 7, New Drill Pipe; 8, Fixing Component; 801, U-shaped Frame; 802, Clamping Block; 803, Guide Rod; 804, Threaded Rod; 805, Threaded Sleeve; 806, Worm Gear; 807, Worm; 808, Second Bevel Gear; 809, Sprocket Assembly. Detailed Embodiment

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] The following describes an embodiment of the present invention based on its overall structure.

[0037] See also Figure 1-8 A combined MJS pile driver includes a pile driving device 1 and a newly added drill rod 7. A lifting cylinder 2 is provided on one side of the pile driving device 1, and a movable multi-link assembly 3 is connected to the end of the lifting cylinder 2. The lifting cylinder 2 is used to adjust the height of the movable multi-link assembly 3, and a support column 4 is movably installed on one end of the movable multi-link assembly 3. A disc 5 is rotatably connected to the top of the support column 4, and a mounting bracket 6 is installed on the top of the disc 5. The mounting bracket 6 includes a fixing frame 601 connected to the disc 5, and both ends of the fixing frame 601 are provided with fixing assemblies 8 for fixing the newly added drill rod 7. The mounting bracket 6 not only installs two groups of fixing assemblies 8, but also can drive the fixing assembly 8 to work. The fixing assembly 8 includes a U-shaped frame 801, and two groups of clamping blocks 802 are symmetrically arranged on the inner side of the U-shaped frame 801. , and the sides of the two groups of clamping blocks 802 are both provided with threaded rods 804, the exteriors of the two groups of threaded rods 804 are both threadedly connected with threaded sleeves 805, and the threaded sleeves 805 are rotatably connected to the U-shaped frame 801, and the exteriors of the two groups of threaded sleeves 805 are both provided with worm gears 806, both sides of the U-shaped frame 801 are rotatably connected with worms 807, and the two groups of worms 807 are respectively meshed with the two groups of worm gears 806, and the side of the U-shaped frame 801 is rotatably connected with a second bevel gear 808, and the second bevel gear 808 and the two groups of worms 807 are respectively connected by transmission through the sprocket assembly 809. By providing the mounting bracket 6 and the multiple groups of fixing assemblies 8, it can be used to store the newly added drill rod 7 and assist in the disassembly and installation of the newly added drill rod 7, thereby improving the installation efficiency and construction safety of the newly added drill rod 7.

[0038] In the above embodiments, please refer to Figure 3 and Figure 5, there are multiple sets of mounting brackets 6, and the multiple sets of mounting brackets 6 are evenly distributed on the top of the disc 5. The top of the fixing frame 601 is rotatably connected to a transmission shaft 602, and two sets of first bevel gears 603 are arranged outside the transmission shaft 602, and the two sets of first bevel gears 603 are respectively meshed with two sets of second bevel gears 808 correspondingly. A rotary valve 604 is arranged at the top of the transmission shaft 602. By arranging multiple sets of mounting brackets 6, two sets of fixing components 8 for clamping and fixing the new drill pipe 7 are arranged on the side of each set of mounting brackets 6. Furthermore, the multiple sets of mounting brackets 6 can engage with multiple sets of new drill pipes 7, and each set of mounting brackets 6 is provided with a transmission shaft 602 and a first bevel gear 603 for driving the fixing component 8 to work.

[0039] In the above embodiment, specifically, please refer to again Figure 7 and Figure 8 , a guide rod 803 is arranged on the side of the clamping block 802, and the guide rod 803 and the U-shaped frame 801 are movably penetrated. By arranging the guide rod 803, it can play a role in limiting the movement of the clamping block 802.

[0040] In the above embodiment, specifically, please refer to again Figure 8 , multiple sets of anti-slip teeth for increasing friction are arranged on the inner side of the clamping block 802. By arranging multiple sets of anti-slip teeth on the inner side of the clamping block 802, the clamping and fixing effect of the clamping block 802 on the new drill pipe 7 is better.

[0041] In the above embodiment, specifically, please refer to again Figure 2 , the pile driving device 1 includes a carrier vehicle 101, and a lifting component 102 is arranged on the side of the carrier vehicle 101, and an installation platform 104 is connected to the side of the lifting component 102. A driving component 103 is arranged on the top of the installation platform 104, and the output end of the driving component 103 is connected to a driving rod 105. By arranging the driving component 103 to drive the driving rod 105 to rotate, the purpose of drilling of the pile driving device 1 is realized.

[0042] In the above embodiment, specifically, please refer to again Figure 2 , a rod holder 106 is arranged on the side of the carrier vehicle 101, and the rod holder 106 can play a role in clamping and fixing the new drill pipe 7. A platform 107 is arranged on the side of the carrier vehicle 101. By arranging the platform 107 on the side of the carrier vehicle 101, a foothold can be provided for the staff. Since the new drill pipe 7 often has a certain length, it is more convenient for the staff to stand on the platform 107 and install the new drill pipe 7 with the help of the mounting bracket 6 and the fixing component 8.

[0043] A combined MJS pile driver construction method, the process of which includes the following steps:

[0044] S1: First, carry out construction preparation work, move the pile driving equipment 1 to the working area, and then debug the equipment for the work of the pile driving equipment 1;

[0045] S2: Then, engage the rod head for drilling into the rod body holder 106. Then, the staff member pulls the installation bracket 6 to move a set of newly added drill pipes 7 below the driving rod 105, and adjusts the height of the newly added drill pipe 7 to be installed by controlling the lifting cylinder 2;

[0046] S3: Start the driving component 103 to drive the driving rod 105 to rotate slowly, and start the lifting component 102 to push the driving rod 105 downward, so that the driving rod 105 and the newly added drill pipe 7 are threadedly connected together. Then, rotate the corresponding rotary valve 604 to drive the transmission shaft 602 to rotate, thereby opening the two sets of fixing components 8 that fix and hold the newly added drill pipe 7;

[0047] S4: Continue to control the lifting component 102 and the driving component 103 to push the driving rod 105 to rotate and descend. Then, the driving rod 105 will drive the installed newly added drill pipe 7 to rotate and descend synchronously, so that the other end of the newly added drill pipe 7 is threadedly connected to the rod head in the rod body holder 106, and the drill pipe equipment continues to penetrate into the rock wall a little to drill a hole.

[0048] When the present invention is working specifically: When it is necessary to install a newly added drill pipe 7 at the bottom of the driving rod 105, the staff member manually pulls the installation bracket 6, thereby driving the movable multi-link component 3 to be adjusted, pulling and moving the installation bracket 6 to one side of the driving rod 105, and making one set of newly added drill pipes 7 directly below the driving rod 105. Then, the height of the movable multi-link component 3 is adjusted by controlling the lifting cylinder 2, thereby adjusting the height of the newly added drill pipe 7 to be installed, so that the newly added drill pipe 7 to be installed is close to the driving rod 105. Then, start the driving component 103 to drive the driving rod 105 to rotate slowly, and control the lifting component 102 to adjust the height of the driving rod 105, so that the driving rod 105 is slowly threadedly connected to the newly added drill pipe 7.

[0049] After the driving rod 105 and the newly added drill pipe 7 are completely engaged and connected, it is necessary to open the two sets of fixing components 8 that fix the newly added drill pipe 7. Specifically, the corresponding rotary valve 604 is rotated, and then the rotary valve 604 drives the two sets of first bevel gears 603 to rotate. The two sets of first bevel gears 603 respectively drive the two sets of second bevel gears 808 to rotate. The second bevel gears 808 drive the two sets of sprocket assemblies 809 to work, so that the two sets of worm gears 807 start to rotate. The rotation of the worm gear 807 will drive the corresponding worm wheel 806 to rotate, and the worm wheel 806 will drive the threaded sleeve 805 to rotate. When the threaded sleeve 805 rotates, since the threaded sleeve 805 is threadedly connected to the threaded rod 804, the clamping block 802 moves directionally under the limiting action of the guide rod 803. The two clamping blocks 802 move away from the newly added drill pipe 7, thereby prompting the fixing component 8 to release the fixing effect on the newly added drill pipe 7.

[0050] After the clamping and fixing of the newly added drill pipe 7 by the fixing component 8 is released, the staff pulls the mounting bracket 6 to one side and continues to control the lifting component 102 to adjust the height of the driving rod 105. Then, the driving component 103 drives the driving rod 105 and the newly added drill pipe 7 to slowly rotate and descend through the rod gripper 106 to drill holes in the rock wall. When multiple sets of newly added drill pipes 7 need to be installed, the rod gripper 106 can play a fixing role for the newly added drill pipe 7. That is, according to the above steps, when a set of newly added drill pipe 7 is also engaged in the rod gripper 106, another set of newly added drill pipe 7 can be installed between the driving rod 105 and the newly added drill pipe 7 in the rod gripper 106 in the same way according to the above steps.

[0051] Multiple sets of mounting brackets 6 are movably installed on the top of the movable multi-link assembly 3 through the support columns 4 and the disc 5. Furthermore, multiple sets of mounting brackets 6 can be set according to actual needs. In the construction preparation stage, multiple sets of newly added drill pipes 7 are pre-installed on one side of the mounting bracket 6. Then, during the construction process, the newly added drill pipes 7 fixed on the side of the mounting bracket 6 can be quickly installed at the bottom of the driving rod 105.

[0052] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and are not limitations to the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A combined MJS pile driver, comprising a pile driving device (1) and a newly added drill rod (7), characterized in that: A lifting cylinder (2) is provided on one side of the piling equipment (1), and the end of the lifting cylinder (2) is connected to a movable multi-link assembly (3), and a support column (4) is movably installed on one end of the movable multi-link assembly (3), and the top of the support column (4) is rotatably connected to a disc (5), and a mounting bracket (6) is installed on the top of the disc (5), and the mounting bracket (6) includes a fixing frame (601) connected to the disc (5), and both ends of the fixing frame (601) are provided with fixing assemblies (8) for fixing a newly added drill rod (7), and the fixing assembly (8) includes a U-shaped frame (801), and two groups of clamping blocks (802) are symmetrically arranged on the inner side of the U-shaped frame (801), and the two groups of clamping blocks (802) are symmetrically arranged on the inner side of the U-shaped frame (801). The sides of the clamping blocks (802) are each provided with a threaded rod (804), the outsides of the two groups of threaded rods (804) are both threadedly connected with a threaded sleeve (805), and the threaded sleeve (805) and the U-shaped frame (801) are rotatably connected, and the outsides of the two groups of threaded sleeves (805) are both provided with a worm gear (806), both sides of the U-shaped frame (801) are rotatably connected with a worm (807), and the two groups of worms (807) are respectively meshed with the two groups of worm gears (806), and the side of the U-shaped frame (801) is rotatably connected with a second bevel gear (808), and the second bevel gear (808) and the two groups of worms (807) are respectively connected by transmission through a sprocket assembly (809).

2. A combined MJS pile driver according to claim 1, characterized in that: The mounting brackets (6) are provided in multiple groups, and the multiple groups of mounting brackets (6) are evenly distributed on the top of the disc (5); the top of the fixing frame (601) is rotatably connected to a transmission shaft (602), and two groups of first bevel gears (603) are provided outside the transmission shaft (602), and the two groups of first bevel gears (603) are respectively meshed with the two groups of second bevel gears (808) correspondingly; and a rotary valve (604) is provided on the top of the transmission shaft (602).

3. A combined MJS pile driver according to claim 1, characterized in that: A guide rod (803) is arranged on the side of the clamping block (802), and the guide rod (803) and the U-shaped frame (801) are movably interwoven.

4. A combined MJS pile driver according to claim 1, characterized in that: The inner side of the clamping block (802) is provided with a plurality of groups of anti-slip teeth for increasing friction.

5. The combined MJS pile driver according to claim 1, characterized in that: The piling equipment (1) comprises a carrier vehicle (101), wherein a lifting assembly (102) is arranged on the side of the carrier vehicle (101), and a mounting platform (104) is connected to the side of the lifting assembly (102), a driving assembly (103) is arranged on the top of the mounting platform (104), and an active rod (105) is connected to the output end of the driving assembly (103).

6. The combined MJS pile driver according to claim 1, characterized in that: A rod body clamp (106) is arranged on the side of the carrier vehicle (101), and the rod body clamp (106) can clamp and fix the newly added drill rod (7). A platform (107) is arranged on the side of the carrier vehicle (101).

7. A combined MJS pile driver construction method, characterized in that The process of using a combined MJS pile driver according to any one of claims 1 to 6 comprises the following steps: S1: First, the construction preparation work is carried out, the piling equipment (1) is moved to the working area, and then the equipment debugging of the piling equipment (1) is carried out; S2: The rod head for drilling is then clamped into the rod body clamp (106), and then the staff pulls the installation bracket (6) to move a group of newly added drill rods (7) to the bottom of the active rod (105), and adjusts the height of the newly added drill rods (7) to be installed by controlling the lifting cylinder (2); S3: Start the driving assembly (103) to drive the active rod (105) to rotate slowly, and start the lifting assembly (102) to push the active rod (105) down, so that the active rod (105) and the newly added drill rod (7) are threadedly connected together, and then rotate the corresponding rotary valve (604) to drive the transmission shaft (602) to rotate, thereby opening the two sets of fixing assemblies (8) that fix and clamp the newly added drill rod (7); S4: Continue to control the lifting assembly (102) and the driving assembly (103) to push the active rod (105) to rotate and descend, and the active rod (105) will drive the installed newly added drill rod (7) to rotate and descend synchronously, so that the other end of the newly added drill rod (7) is threadedly connected to the rod head in the rod body clamp (106), and as the drill rod equipment continues to penetrate deeper into the rock wall, drilling is performed.

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