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variable speed device

A variable and variable speed mechanism technology, applied in transmission, gear transmission, fluid transmission, etc., can solve the problems of high equipment cost, short life and high price, and achieve the effect of easy design and improved efficiency

Active Publication Date: 2019-07-30
HITACHI NICO TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, devices that perform inverter control are relatively expensive and have a short lifespan. In addition, the supply of components may be stopped. Therefore, there is a disadvantage that it needs to be updated regularly within a relatively short period, and the equipment cost becomes high.

Method used

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Embodiment Construction

[0045] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each of the following drawings, for the sake of easy understanding, some parts are omitted or abbreviated, and the dimensional ratio of each part is not completely correct.

[0046] figure 1 It is a block diagram showing the configuration of the variable speed device 1 according to the present embodiment. As shown in the figure, the variable speed device 1 includes: a housing 10; an input shaft 20 and an output shaft 30, which are supported by the housing 10 so as to be able to rotate freely; a planetary gear mechanism 40, which is connected with the input shaft 20 and the output shaft 30; The mechanism 50 supplies control power for the output shaft 30 to shift speed to the planetary gear mechanism 40 ; the control device 60 is used to control the operation of the shift control mechanism 50 .

[0047] The case 10 is a member that rotatably supports each ...

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Abstract

In order to provide a variable speed device that is easy to optimally design and can further improve efficiency compared with the past, the variable speed device (1) includes: a planetary gear mechanism (40) connected to an input shaft (20) and an output shaft (30); The control mechanism (50), the transmission control mechanism (50) includes: a control input shaft (51) and a control output shaft (52); an input side transmission mechanism (53) transmits the input shaft (51) to the control input shaft (51). 20); the transmission mechanism (54) transmits the rotational power of the control input shaft (51) to the control output shaft (52), and changes the rotation speed of the control output shaft (52); the output side transmission The mechanism (55) transmits control to components among the internal gear (41), the sun gear (42) and the planet carrier (44) that constitute the planetary gear mechanism (40) that are not connected to the input shaft (20) or the output shaft (30). Use the output shaft (52) to rotate the power.

Description

technical field [0001] The present invention relates to a variable speed device that transmits rotational power of a prime mover to a driven machine and changes the rotational speed of the driven machine. Background technique [0002] Conventionally, in the operation of fluid machines such as pumps and blowers, generally, the rotational speed of a motor serving as a prime mover is changed by frequency conversion control to cope with load fluctuations. This frequency conversion control has an advantage of less loss than the damping control on the discharge side or the suction side of the fluid machine. On the other hand, devices that perform inverter control are relatively expensive and have a short lifespan. Furthermore, the supply of parts may be stopped. Therefore, there is a disadvantage that it needs to be updated regularly in a relatively short period, and the equipment cost is high. [0003] Since the inverter control has such disadvantages, in recent years, a method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/44F16H47/08
CPCF16H3/44F16H47/08F16H3/72F16H47/00
Inventor 樱井辉明渡部孝
Owner HITACHI NICO TRANSMISSION