Multi-head drilling machine driven by submersible drilling machine

Abstract

The utility model discloses a multi-head drilling machine driven by a submersible drilling machine, which comprises a lifting cross beam, a submersible drilling machine module, a multi-head drilling linkage box and a drill bit module, the lifting cross beam is fixedly connected with the submersible drilling machine module, the submersible drilling machine module is connected with the input end of the multi-head drilling linkage box, and the output end of the multi-head drilling linkage box is connected with the drill bit module. The transmission pipe module is arranged between the inner wall of the box body shell and the gear module and used for perfecting the working environment of the multi-head drilling machine during construction or pouring a concrete wall, the drill bit module comprises a plurality of drill bits, and the number of the drill bits is the same as that of the linkage gears; the submersible drilling machine module is driven by the lifting drill rod to drive all the linkage gears to rotate, and each linkage gear drives the corresponding drill bit to conduct downward drilling construction. The device disclosed by the utility model is low in total manufacturing cost, beneficial to field maintenance and repair, low in construction cost and good in market prospect.

Description

Technical Field

[0001] The utility model relates to the field of drilling rigs, and in particular to a multi-head drilling rig driven by a submersible drilling rig. Background Art

[0002] At present, for the construction of foundation pit water-stop curtains and groundwater anti-seepage walls with a depth of 35m to 80m, double-wheel stirring or double-wheel milling equipment is generally used on the market. However, both double-wheel stirring and double-wheel milling construction processes have the following problems:

[0003] (1) The equipment is expensive, especially the double-wheel mixing equipment, which has high construction and operation costs, expensive accessories, and it is difficult to repair the equipment at the construction site.

[0004] (2) Due to the limited length of the double-wheel stirring or double-wheel milling, repeated drilling is required, which takes a long time to construct and has great limitations. The thickness of the water-stop curtain or anti-seepage wall is difficult to adjust.

[0005] (3) High power consumption during construction; construction on weathered rocks is difficult, costly, and has a low cost-performance ratio. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes a multi-head drilling rig driven by a submersible drilling rig, which has low cost, is convenient for on-site maintenance and repair, and has low construction cost.

[0007] To this end, the utility model adopts the following technical solutions:

[0008] A multi-head drilling rig driven by a submersible drilling rig is driven by a lifting drill rod. The multi-head drilling rig includes a lifting beam, a submersible drilling rig module, a multi-head drilling linkage box and a drill module, wherein:

[0009] The upper end of the submersible drilling rig module is fixedly connected to the lifting beam, and the lower end is connected to the input end of the multi-head drilling linkage box, and the output end of the multi-head drilling linkage box is connected to the drill module;

[0010] The submersible drilling rig module includes several submersible drilling rigs arranged side by side, and the number of submersible drilling rigs is determined according to the actual working conditions;

[0011] The multi-head drill linkage box includes a box shell, a gear module, and a transmission pipe module. The top and bottom surfaces of the box shell are both provided with through holes. The gear module includes a plurality of meshing linkage gears arranged in a single row and corresponding gear shafts. The gear shafts are rotatably connected to the box shell via bearings installed in the through holes.

[0012] The transmission pipe module is arranged between the inner wall of the box shell and the gear module, and is used to create a working environment for the multi-head drilling rig during construction or for pouring concrete walls;

[0013] The drill module includes a plurality of drill bits, and the number of the drill bits is the same as the number of the linkage gears;

[0014] The submersible drilling rig module drives all the linked gears to rotate under the drive of the lifting drill rod, and then drives the corresponding drill bit to perform drilling construction.

[0015] Preferably, the drilling diameter of the drill bit is larger than the width of the multi-head drill linkage box.

[0016] Preferably, a sealing sleeve is provided at the connection between the through hole on the box shell and the gear shaft, and the sealing sleeve is used to prevent water or mud from entering the multi-head drill linkage box.

[0017] Preferably, the transmission pipe module includes several transmission pipe pairs, each transmission pipe pair includes a liquid transmission pipe and a gas transmission pipe; the transmission pipe pairs are evenly distributed in the box shell, the liquid transmission pipe is used to transmit water or concrete to the vicinity of the drill bit module during construction, and the gas transmission pipe is used to transmit air to the vicinity of the drill bit module.

[0018] Preferably, the liquid transmission pipes and gas transmission pipes in the transmission pipe pairs are relatively arranged at positions close to the long sides of the box shell, and the liquid transmission pipes and gas transmission pipes of adjacent transmission pipe pairs are arranged at opposite positions.

[0019] Preferably, the drill bit is a three-wing drill bit, and the three-wing drill bits are alternately arranged up and down to avoid collisions between adjacent three-wing drill bits.

[0020] Preferably, the gear module is provided with double rows of non-contacting linkage gears, and the linkage gears in each row are meshed with each other. The width of the drill hole formed by the drill bit connected to the double row of linkage gears is greater than the width of the multi-head drill linkage box.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The total cost of the equipment of this utility model is low, and it is convenient for on-site maintenance and repair, with low construction cost and good market prospects;

[0023] 2. The equipment of the utility model has a fast construction speed, more uniform mixing during construction, and good water-stopping effect of the finished product; the equipment of the utility model has a wide range of applications and can be adapted to general soil layers, hard soil layers, sand layers, pebble layers with a diameter of less than 50mm, and strongly weathered and moderately weathered layers;

[0024] 3. The equipment of the utility model can be used to construct ultra-thin water-stop curtains and anti-seepage walls, which cannot be achieved by existing double-wheel mixing or double-wheel milling machines;

[0025] 4. The equipment of the present invention can be used in mature construction technology to replace double-wheel stirring or double-wheel milling, and avoids various defects caused by double-wheel stirring or double-wheel milling construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of embodiment 1 of the present utility model;

[0027] Figure 2 for Figure 1 Schematic cross-section of the middle BB position;

[0028] Figure 3 This is a schematic structural diagram of the second embodiment of the present utility model;

[0029] Figure 4 This is a cross-sectional view from a top view of the multi-head drill linkage box in Example 3 of the present utility model.

[0030] In the figure: 1. lifting beam, 2. submersible drilling rig module, 3. multi-head drilling linkage box, 4. drill bit module, 301. box shell, 302. linkage gear, 303. transmission pipe module, 304. gear shaft, A. lifting drill pipe. DETAILED DESCRIPTION

[0031] In order to clearly show the structure inside the shell, the lifting beam and the multi-head drill linkage box are shown in perspective, as shown in the figure below. Figure 1 and Figure 3 The multi-head drill linkage box is cross-sectionally shown at BB. Figure 2 shown

[0032] At present, when constructing a foundation pit water-stop curtain or a groundwater anti-seepage wall, a double-wheel stirring or double-wheel milling machine connected to the output end of the lifting drill rod A is used for construction. The multi-head drilling rig driven by the submersible drilling rig of the utility model can also be installed on the output end of the lifting drill rod A to realize the construction of a foundation pit water-stop curtain or a groundwater anti-seepage wall. The technical solution of the utility model is further described in detail below in combination with the drawings and embodiments.

[0033] Example 1

[0034] like Figure 1 As shown, the submersible drilling rig multi-head drilling rig of the present invention includes a lifting beam 1, a submersible drilling rig module 2, a multi-head drilling linkage box 3 and a drill module 4. The lifting beam 1 is fixedly connected to the submersible drilling rig module 2, the submersible drilling rig module 2 is connected to the input end of the multi-head drilling linkage box 3, and the output end of the multi-head drilling linkage box 3 is connected to the drill module 4, wherein:

[0035] In this embodiment, the submersible drilling rig module 2 includes 7 submersible drilling rigs, and the number of submersible drilling rigs can be increased or decreased according to actual working conditions;

[0036] The multi-head drill linkage box 3 includes a box shell 301, a gear module and a transmission pipe module 303. The top and bottom surfaces of the box shell 301 are provided with through holes.

[0037] The gear module includes 15 linked gears 302 arranged in a single row and meshing with each other one by one, and corresponding gear shafts 304. Each gear shaft 304 passes through a corresponding through hole and is fixedly connected to the inner side of the box shell 301 through a bearing. The gear shaft 304 drives the linked gear 302 to rotate. Figure 2 A sealing sleeve is provided at the connection of the through hole to prevent water or mud from entering the multi-head drill linkage box 3.

[0038] The transmission pipe module 303 is located between the inner wall of the housing 301 and the gear module. It is used to improve the working environment of the multi-head drill during construction or to perform concrete wall pouring. The transmission pipe module 303 includes six transmission pipe pairs, each consisting of one liquid transmission pipe and one gas transmission pipe. To ensure uniform distribution of liquid and gas during construction, the transmission pipe pairs are evenly distributed within the housing 301. The liquid transmission pipes are used to transport water or concrete during construction, while the gas transmission pipes are used to transport air. In this embodiment, the liquid and gas transmission pipes are located opposite each other near the long sides of the housing 301. The liquid and gas transmission pipes of adjacent transmission pipe pairs are located in opposite positions.

[0039] The drill module 4 includes 15 three-wing drill bits. The output of each linkage gear is connected to a corresponding three-wing drill bit. The inputs of seven linkage gears are connected to the outputs of corresponding submersible drilling rigs. The submersible drilling rigs rotate all the three-wing drill bits by driving all the linkage gears. The three-wing drill bits are arranged alternately to prevent collisions between them. The drilling diameter of the three-wing drill bits must be larger than the width of the multi-head drill gearbox.

[0040] Before construction, first prepare the lifting drill rod A and the corresponding water pipes, concrete slurry pipes, and air pipes, fix the lifting beam 1 to the lifting drill rod A, connect each submersible drilling rig to electricity, and then connect the water pipes, concrete slurry pipes, and air pipes to the corresponding transmission pipes in the transmission pipe module 303 to complete the construction preparation.

[0041] During construction, open the valves of the water pipes, slurry pipes, and gas pipes. Start all submersible drilling rigs. When the multi-head drilling rig is lowered, spray and jet grout, and when it is lifted, spray again to form the wall. When it is lifted, spray and jet grout to form the groove or pour concrete to form the wall.

[0042] When drilling into the ground, start at a low speed (10-20 r / min). Once normal operation is achieved, increase the speed to 20-300 r / min. High speeds are beneficial for penetrating weathered rock. When drilling through large pebbles, proceed slowly, even keeping the speed below 10 r / min.

[0043] Example 2

[0044] On the basis of the first embodiment, the submersible drilling rig is reduced according to the construction difficulty of the soil layer to be constructed. Figure 3 As shown, in this embodiment, the number of submersible drilling rigs is reduced to 5, but since the linkage gears are all meshed together, all the three-wing drill bits also rotate under the rotation of the submersible drilling rigs.

[0045] Example 3

[0046] On the basis of the first or second embodiment, the plurality of linkage gears meshing with each other in a single row in the multi-head drill linkage box 3 are increased to a double row arranged in parallel; Figure 4 As shown, a single row of 29 gears, with no meshing between the two rows, is used to drill the hole. To allow the equipment to move underground, the double-row, three-wing drills must drill a hole wider than the width of the multi-head drill gearbox.

Claims

1. A multi-head drilling rig driven by a submersible drilling rig, driven by a lifting drill rod (A), characterized in that: The multi-head drilling rig comprises a lifting beam (1), a diving drilling rig module (2), a multi-head drilling linkage box (3) and a drill module (4), wherein: The upper end of the submersible drilling rig module (2) is fixedly connected to the lifting beam (1), and the lower end is connected to the input end of the multi-head drilling linkage box (3), and the output end of the multi-head drilling linkage box (3) is connected to the drill module (4); the submersible drilling rig module (2) includes a plurality of submersible drilling rigs arranged side by side, and the number of the submersible drilling rigs is determined according to actual working conditions; The multi-head drill linkage box (3) comprises a box housing (301), a gear module and a transmission pipe module (303); the top and bottom surfaces of the box housing (301) are both provided with through holes; the gear module comprises a plurality of mutually meshing linkage gears (302) arranged in a single row and corresponding gear shafts (304); the gear shafts (304) are rotatably connected to the box housing (301) via bearings mounted on the through holes; The transmission pipe module (303) is arranged between the inner wall of the box shell (301) and the gear module, and is used to create a working environment for a multi-head drilling rig during construction or to cast a concrete wall; The drill module (4) includes a plurality of drill bits, and the number of the drill bits is the same as the number of the linkage gears; The submersible drilling rig module (2) drives all the linkage gears (302) to rotate under the drive of the lifting drill rod (A), thereby driving the corresponding drill bit to perform drilling construction.

2. The multi-head drilling rig according to claim 1, characterized in that: The drilling diameter of the drill bit is greater than the width of the multi-head drill linkage box (3).

3. The multi-head drilling rig according to claim 2, characterized in that: A sealing sleeve is provided at the connection between the through hole on the box shell (301) and the gear shaft (304), and the sealing sleeve is used to prevent water or mud from entering the multi-head drill linkage box (3).

4. The multi-head drilling rig according to claim 1, characterized in that: The transmission pipe module (303) includes a plurality of transmission pipe pairs, each transmission pipe pair including a liquid transmission pipe and a gas transmission pipe; the transmission pipe pairs are evenly distributed in the box shell (301), the liquid transmission pipe is used to transmit water or concrete to the vicinity of the drill module (4) during construction, and the gas transmission pipe is used to transmit air to the vicinity of the drill module (4).

5. The multi-head drilling rig according to claim 4, characterized in that: The liquid transmission pipes and gas transmission pipes in the transmission pipe pairs are respectively arranged at positions close to the long sides of the box shell (301), and the liquid transmission pipes and gas transmission pipes of adjacent transmission pipe pairs are arranged at opposite positions.

6. The multi-head drilling rig according to claim 3, characterized in that: The drill bit is a three-wing drill bit, and the three-wing drill bits are alternately arranged up and down to avoid collisions between adjacent three-wing drill bits.

7. The multi-head drilling rig according to claim 1, characterized in that: The gear module is provided with double rows of linkage gears that do not contact each other, and the linkage gears in each row are meshed with each other; the width of the drill hole formed by the drill bits connected to the double rows of linkage gears is greater than the width of the multi-head drill linkage box.

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