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Speed-changing and torque-reducing transfer case

A transfer case and box body technology, which is applied to the transmission device, transmission device parts, transmission device control, etc., can solve the problem of high cost, the inability of the transfer case to realize the variable speed and forward and reverse functions, the use of space and carrying capacity of the offshore drilling platform Limited problems, to achieve the effect of low cost, light weight and compact structure

Pending Publication Date: 2017-09-26
JINGZHOU JUJING TRANSMISSION MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing transfer case cannot achieve variable speed and forward and reverse functions, when driving the winch and the turntable, a gearbox and a forward and reverse gear box are also required.
The use of space and carrying capacity of the offshore drilling platform is limited, and the cost is high, so there are restrictions on the footprint and weight of the offshore workover rig

Method used

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  • Speed-changing and torque-reducing transfer case
  • Speed-changing and torque-reducing transfer case
  • Speed-changing and torque-reducing transfer case

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] Such as Figures 1 to 3 As shown, the embodiment of the present invention provides a variable-speed torque-reducing transfer case, including a case body 100, and the case body 100 is provided with a power input shaft 1, a gear transmission mechanism, a first intermediate shaft 11, and a second intermediate shaft 15 and the power output shaft (the power output shafts in this embodiment are respectively the first power output shaft 7 and the second power ...

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Abstract

The invention discloses a speed-changing and torque-reducing transfer case. The transfer case comprises a case body; a power input shaft, a gear transmission mechanism, a first intermediate shaft and power output shafts are arranged in the case body; one end of the power input shaft extends out of the case body; the two power output shafts are arranged on the gear transmission mechanism and include a first power output shaft and a second power output shaft; and one end of the first power output shaft and one end of the second power output shaft extend out of the case body. The speed-changing and torque-reducing transfer case integrating a speed changing box, a torque reducing box, a transfer case and a forward and reverse gear box is provided according to the characteristics of limited space and limited load of a marine drilling platform and is compact in structure, short in transmission chain, light and low in cost.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a speed-variable and torque-reducing transfer case applied to an ocean workover rig. Background technique [0002] The transmission part of the workover rig is generally powered by a diesel engine or an electric motor, through a gearbox, a transfer case, and then through a main gearbox or a sprocket box to drive the drawworks; The forward and reverse gear box is used to drive the turntable operation. Since the existing transfer case cannot realize the functions of speed change and positive and negative rotation, when driving the winch and the turntable, a gearbox and a positive and negative gear box are also required. The use of space and carrying capacity of offshore drilling platforms is limited, and the cost is high, so there are restrictions on the footprint and weight of offshore workover rigs. Contents of the invention [0003] In order to solve the abov...

Claims

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Application Information

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IPC IPC(8): F16H37/06F16H57/023F16H61/26F16H63/30
CPCF16H37/065F16H57/023F16H61/26F16H63/3023F16H2063/3076
Inventor 高波陈立立王辛叶花苹吕帅施廷锋
Owner JINGZHOU JUJING TRANSMISSION MACHINERY
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