Multifunction rotary disc speed reducing box
A multi-functional, reduction box technology, applied in the direction of rotary drilling, rotary drilling rigs, gear transmissions, etc., can solve the problems of simplification and portability of the drilling rig structure, and reduce the difficulty of manual operation and maintenance, and improve the structure of the drilling rig. simplified effect
Active Publication Date: 2009-10-14
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0005] Due to the above reasons, the current portable drilling rig cannot be truly portable. In order to realize the actions required for drilling, many functional components need to be added.
It is difficult to realize the simplification of the drilling rig structure
Method used
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[0021] Such as figure 1 As shown, the output shaft of the power source (engine, air motor or hydraulic motor) directly drives the small bevel gear shaft 12 through the flat key, drives the small bevel gear shaft 12 to rotate, and then drives the large bevel gear 7 to rotate, and the large bevel gear 7 passes through the screw 8 and the center pipe 20 are rigidly fixed. In order to change the complex structure of the previous top drive, we designed the center pipe 20 as a hollow structure, and the drill pipe passes through the center of the center pipe 20. In order to realize the drive of the drill pipe, a square The bushing 10, the square bushing 10 has an outer circle and an inner square structure, and is used to drive the outer side of the kelly so that the kelly rotates together with the center pipe 20. The centralizing sleeve 2 is rigidly fixed on the lower part of the center pipe 20 by bolts, and plays the role of centralizing the drill pipe and preventing the deflection ...
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A multifunctional turntable gearbox used on drilling rigs to reduce the speed of the power machine at a certain speed ratio and increase the torque, including a large bevel gear (7), an upper end cover (9), a square bushing (10), a small bevel gear Shaft (12), pinion housing (14), central tube (20), etc., pinion housing (14) is provided with small bevel gear shaft (12), small bevel gear shaft (12) and large bevel gear (7) connection, the large bevel gear (7) is rigidly fixed to the central tube (20) through screws (8), the top of the central tube (20) is installed with a square bushing (10), and the centering sleeve (2) is rigidly fixed to the central tube (20) The lower part, the upper end cover (9) is installed on the box body (6), the top drive structure is abandoned, and the turntable drive is realized for the first time in the field of portable drilling rigs, and the reduction box is endowed with driving, righting and shackle functions in addition to deceleration. The structure of the drilling rig is simplified, the difficulty of manual operation and maintenance is reduced, and automatic feeding can be realized. It provides a basic guarantee for the weight reduction of the portable drilling rig.
Description
technical field [0001] The present invention is used in drilling rigs, and is a multifunctional turntable speed reducer that reduces the rotating speed of a power machine according to a certain speed ratio and increases the torque. Background technique [0002] The gearbox is a structural component commonly used in drilling rigs at present. Its main function is to reduce the output speed of the power source in proportion to reach the required output speed, and at the same time increase the output torque of the power source in the same proportion. The common features of the current gearboxes are: [0003] 1. The function is single, and only has the function of deceleration and torque increase; [0004] 2. In order to realize other functions such as driving, it is necessary to add corresponding functional components. [0005] Because of the above reasons, the current portable drilling rig cannot be truly portable, and many functional parts need to be added to realize the req...
Claims
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IPC IPC(8): E21B3/04E21B17/10F16H1/20
Inventor 张向前王晓东南桂芝
Owner BC P INC CHINA NAT PETROLEUM CORP