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Double speed ratio rotation reducer

A rotary reducer, two-speed technology, applied in rotary drilling rigs, mechanical equipment, rotary drilling and other directions, can solve problems such as the difficulty of hydraulic motor design, and achieve the effect of improving work efficiency

Inactive Publication Date: 2014-06-18
BOSCH REXROTH BEIJING HYDRAULIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in prior art drilling equipment such as rotary drills, the drill bit is only connected to a rotary reducer capable of providing a reduction ratio
Therefore, if you want to change the speed of the drill bit, you can only change the speed of the driving hydraulic motor
As we all know, it is not efficient to change the speed of the hydraulic motor by directly changing the current, and it will also cause difficulties in the design of the hydraulic motor

Method used

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Embodiment Construction

[0027] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. In the respective drawings, the same components are denoted by the same reference numerals.

[0028] figure 1 A longitudinal sectional view of the double-speed-ratio slewing reducer according to the present invention is shown. The double-speed-ratio rotary reducer is arranged between a driving hydraulic motor of drilling equipment such as a rotary drilling drill and a drill rod (which is connected to a drill bit). The output shaft of the driving hydraulic motor is connected with the input end of the dual-speed ratio rotary reducer, and the output shaft of the dual-speed ratio rotary reducer can be connected with the drill rod, for example via splines, and drives the drill rod. According to the present invention, the double-speed-ratio slewing reducer is operatively connected with the hydraulic clutch system, so that the power can be transmitted from the hydr...

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Abstract

The invention relates to a double speed ratio rotation reducer for a device with a plurality of working states. The double speed ratio rotation reducer comprises a first planetary gear transmission unit, a second planetary gear transmission unit and a hydraulic clutch system. The first planetary gear transmission unit comprises a sun gear, an annular gear, at least three planetary gears and a planet carrier, wherein the sun gear is connected with a driving shaft. The second planetary gear transmission unit comprises a sun gear, a fixed annular gear, at least three planetary gears and a planet carrier, wherein the sun gear is connected with the planet carrier of the first planetary gear transmission unit. The double speed ratio rotation reducer is characterized in that through the hydraulic clutch system, the annular gear of the first planetary gear transmission unit can selectively be fixed relative to the driving shaft or rotate freely relative to the driving shaft.

Description

technical field [0001] The invention relates to a double-speed ratio rotary reducer, especially a double-speed ratio rotary reducer for equipment with multiple working states. The double-speed ratio rotary reducer includes a planetary gear transmission unit and performs hydraulic control on the planetary gear transmission unit to Hydraulic clutch system to change reduction ratio / transmission ratio. Background technique [0002] In drilling equipment such as a rotary drill, when the drill bit is pulled out of the ground, the drill bit is still continuously rotating to shake off the mud on the drill bit for the next deeper drilling operation. As can be imagined, in order to get more mud off the drill bit, the drill needs to be rotated at the highest possible rotational speed. However, when the drill bit is drilled into the ground, in order to obtain as much torque as possible to overcome the resistance of underground rocks, soil, etc., the drill bit needs to rotate at a relat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H47/00F16H57/02E21B3/00
CPCF16H3/56F16H3/54F16H2200/0034F16H2200/2007F16H2200/2035F16H3/46E21B3/00F16D25/0638F16D25/10
Inventor 万丽英卢秀英武扬
Owner BOSCH REXROTH BEIJING HYDRAULIC
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