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Method for actively lubricating reduction gearbox

A reduction box, active technology, applied in gear lubrication/cooling, transmission parts, belts/chains/gears, etc., can solve problems such as inability to meet lubrication requirements, poor splash lubrication effect, and limited splash oil. The effect of reducing design difficulty, increasing lifespan, improving reliability and durability

Pending Publication Date: 2020-07-24
ZHUZHOU GEAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an active lubrication method for the gearbox, which solves the problem of poor splash lubrication effect in the passive lubrication process, mainly including the small amount of splash oil in the low-speed process, which cannot meet the lubrication requirements, and the high-speed process. The amount of splashing oil in the medium is limited and cannot meet the lubrication requirements

Method used

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  • Method for actively lubricating reduction gearbox
  • Method for actively lubricating reduction gearbox
  • Method for actively lubricating reduction gearbox

Examples

Experimental program
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Effect test

Embodiment 1

[0030] like figure 1 and 3 As shown, this embodiment provides an active lubrication method for a gearbox, based on the electronic oil pump 1, the electronic oil pump 1 includes a motor 10, a gear pump 11 and a controller 12, the motor 10 is connected to the gear pump 11, and the controller 12 is connected to the motor 10 and the controller 12. The CAN bus of the automobile is connected separately, and the controller 12 obtains the speed of the drive motor through the CAN bus, and controls the speed of the motor 10, and the motor 10 controls the gear pump 11 to spray oil through the fuel injector 2 connected to the gear pump 11; the gear pump 11 can be an external gear The gear pump can also be an internal gear pump, which is an external gear pump in this embodiment; the motor 10 can be a brushed motor or a brushless motor.

[0031] When the controller 12 detects that the rotational speed of the driving motor is less than the set threshold-A, the controller 12 controls the rot...

Embodiment 2

[0044] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that in order to ensure the fuel injection quantity of the fuel injector 2, this embodiment provides another structure of the fuel injector. The structure of the fuel injector 2 includes a wedge-shaped housing, and An oil inlet 23 , an oil injection pipe 24 and an oil outlet 25 with a rectangular cross-section are arranged on the wedge-shaped housing. The oil injection pipe 24 bifurcates to both sides in the wedge-shaped housing to form two oil outlets 250 and 251 .

[0045] In this embodiment, through the two oil outlets 250 and 251, lubricating oil is sprayed out from the two oil outlets 250 and 251 with rectangular cross-sections in an umbrella shape, which can be used for large-area lubrication.

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Abstract

The invention discloses a method for actively lubricating a reduction gearbox. The method for actively lubricating the reduction gearbox is characterized by being based on an electronic oil pump; theelectronic oil pump comprises a motor, a gear pump and a controller; the motor is connected with the gear pump; the controller is respectively connected with the motor and an automobile CAN bus, obtains the rotating speed of a driving motor through the CAN bus, and controls the rotating speed of the motor; and the motor controls the gear pump to inject oil through oil nozzles connected with the gear pump. By adopting the active lubricating mode, the problem that the lubricating effects are not ideal when the reduction gearbox runs at low speed and at ultra-high speed is solved, the reliabilityand durability of the reduction gearbox can be effectively improved, and the service life of the reduction gearbox is prolonged; meanwhile, the filling amount of the lubricating oil of the reductiongearbox can be reduced, so that the cost of a user is saved; and the lubricating oil can be directly and accurately injected to gears and gear shafts needing to be lubricated through the oil nozzles,so that the design difficulty is reduced without repeatedly modifying the design according to the positions of oil guide ribs.

Description

technical field [0001] The invention belongs to the technical field of gear boxes, and in particular relates to an active lubrication method for a gear box. Background technique [0002] The new energy gearbox is a standard power transmission device for new energy. It will reduce the power output of the drive motor to achieve the purpose of driving the vehicle. Usually, the gearbox uses one or more pairs of gears for transmission. For the gearbox It is said that the lubrication of gears and gear shafts is an important factor related to the life and reliability of the gearbox. [0003] At present, splash lubrication is commonly used in new energy gearboxes, which is a passive lubrication method. The user will add a certain amount of lubricating oil into the reduction box in advance, and then stir the lubricating oil through the gear rotation of the reduction box, and use this way of lubricating oil to lubricate the gear and the gear shaft. Oil guide ribs are added to the bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04
CPCF16H57/0456F16H57/0436F16H57/0404
Inventor 周文峰刘祥环
Owner ZHUZHOU GEAR CO LTD
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