Combined hydraulic power head
A hydraulic power head and composite technology, applied in the direction of drilling equipment, earthwork drilling, drill pipe, etc., can solve the problems of low transmission load, large damage to dismantled drill pipe, poor compatibility, etc., and achieve high joining efficiency and sealing effect Good, high disassembly efficiency
Active Publication Date: 2018-10-16
CHINA COAL TECH ENG GRP CHONGQING RES INST
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Problems solved by technology
[0005] In view of this, the purpose of the present invention is to provide a composite hydraulic power head, which mainly solves the following problems existing in the existing hydraulic power head: 1) The hydraulic chuck type power head has high requirements for rotating oil supply pressure and low hydraulic chuck life , low transmission
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[0021] The present invention will be further described below in conjunction with specific embodiments. Among them, the drawings are only used for exemplary description, and they are only schematic diagrams rather than physical drawings, and cannot be understood as a limitation of the patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, Enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions may be omitted.
[0022] The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right" , "Front", "Rear", etc. indicate the orientation or positional relationship based on th...
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The invention discloses a combined hydraulic power head, and belongs to the field of machine design. The combined hydraulic power head comprises a gearbox, an active drill pipe, a hydraulic chuck anda built-in hydraulic water valve. The gearbox is provided with a main shaft used for being matched with the active drill pipe in a sliding mode and the built-in hydraulic water valve used for drivingthe active drill pipe to move back and forth in the axial direction in the main shaft, and the hydraulic chuck is arranged at the deviate end, deviating from the built-in hydraulic water valve, of themain shaft. The hydraulic chuck is combined with the active drill pipe, the active dill pipe is used for adding and connecting drill pipes, the hydraulic chuck is used for disassembling the drill pipes, the switch of adding and connecting and disassembling of the drill pipes is realized by using the built-in hydraulic water valve, the efficiency of adding and connecting drill pipes is high, the disassembling efficiency is high, the sealing effect of the cleanout fluid is good, the combined hydraulic power head is compatible with common drill structures, the service life of the hydraulic chuckis long, and impact drilling technology can be expanded at the same time.
Description
technical field [0001] The invention belongs to the technical field of mechanical design, and in particular relates to a composite hydraulic power head, which is applied to coal mine hydraulic drilling rigs. Background technique [0002] At present, the hydraulic power head used for drilling rigs generally adopts two methods of hydraulic chuck clamping drill pipe and active drill pipe connecting drill pipe. The hydraulic chuck type power head is mainly connected to the hydraulic chuck at the front end of the main shaft. The disc rotates with the main shaft, and the load is transmitted by the clamping force of the drill pipe by the hydraulic chuck; the active drill pipe type power head is directly connected to the active drill pipe at the front end of the main shaft, and the thread of the active drill pipe is used to connect the drill pipe. [0003] The main feature of the hydraulic chuck type power head is that it is convenient to disassemble the drill pipe. It mainly uses t...
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Login to View More IPC IPC(8): E21B19/10E21B19/18
CPCE21B19/10E21B19/18
Inventor 李学忠史春宝田乐意陈航陈龙蒲剑张凌王清峰杜渔舟邱响林杨林罗华阮绍刚李和祥周涛王志锦蒋开勇张始斋
Owner CHINA COAL TECH ENG GRP CHONGQING RES INST