CN201354841Y

CN201354841Y - Novel hydrodynamic gear-shifting system

Info

Publication number: CN201354841Y
Application number: CNU2008201009732U
Authority: CN
Inventors: 左佳奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-15
Filing date: 2009-08-15
Publication date: 2009-12-02
Anticipated expiration: 2019-08-15

Abstract

The utility model provides a novel hydrodynamic gear-shifting system. A plurality groups of impellers in different sizes are mounted on the same shaft and also provided with one-way clutches on the same shaft line; all the impellers and the one-way clutches are sealed in own oil chambers; and oil of a high pressure oil pump is fed to different impellers under the control of a rotation speed-controlled oil valve according to the rotational speed, so as to drive the impellers to output power and achieve the purpose of accurate and automatic gear shifting.

Description

Novel fluid power gear changing system

Affiliated technical field:

The utility model relates to a kind of device that utilizes the direct variable block of fluid power, especially can be according to the novel fluid power gear changing system of the automatic variable block of rotation speed change.

Background technique:

At present, known variable block all be by gear shift fork with gear plectrum on the driving gear of different rotating speeds ratio, reach the purpose of speed change.This is present the most general a kind of variable block method.But this method is that operator's labor intensity is big, is out of order easily.Also having a kind of shift is exactly stepless change (retaining) speed, its advantage be realized stepless, but complex structure, the cost height.A kind of fluid torque converter is arranged again, and it is when radially rotating, and axial resistance is very big; Only make it stressed at the edge that rotating speed Gao Shicai makes oil reach impeller.

The model utility content:

Many in order to overcome existing gear changing system fault, complex structure, the deficiency that cost is high, the utility model provides a kind of novel fluid power gear changing system, and this novel fluid power gear changing system can be automatic accurate controlled, not only simple in structure, and the energy automatic gear-shifting, reduces dry sound.

The technological scheme that its technical problem that solves the utility model adopts is:

The impeller that many groups vary in size is installed on same main shaft, one-way element has all been installed at the joining center of each impeller and main shaft, each impeller all is enclosed in separately the bunker, each bunker all has an oil inlet pipe and a return tube, and oil inlet pipe connects with high-pressure oil pipe, and a control fuel tap by rotating speed control is all arranged on every oil inlet pipe, high-pressure oil pipe connects with high pressure oil pump, high pressure oil pump connects with fuel tank again, and fuel tank connects with return tube again, has so just formed an annular oil circuit.When a certain rotating speed, to open with that valve that the control fuel tap adapts, high pressure oil impacts impeller, wheel rotation, outputting power.When being another rotating speed, the control fuel tap of upper level impeller cuts out, not oiling, and open automatically with the control fuel tap that at this moment rotating speed adapts, make this wheel rotation outputting power.And other impeller does not change owing to the effect of one-way element.This has just realized automatic accurate controlled speed change (retaining).

The beneficial effects of the utility model are:

Automatic switchover rotating speed when rotation speed change makes power and rotating speed obtain optimum Match, and simple in structure, dry sound is little, and is simple to operate.

Description of drawings:

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is a generalized section of the present utility model.

Fig. 2 is an impeller schematic representation of the present utility model.

Among the figure, 1, main shaft, 2, one-way element, 3, impeller, 4, bunker, 5, return tube, 6, fuel tank, 7, high pressure oil pump, 8, the high pressure oil inlet pipe, 9, the control fuel tap.

Embodiment:

On the main shaft 1 one-way element 2 is installed in the drawings, impeller 3 is installed on the one-way element 2, one-way element 2 and impeller 3 are coaxial, and all independently be installed in the bunker 4 separately, (having several groups of speed changes that several groups of impellers are just arranged) is in order to make the oil energy of high-pressure oil pipe 8 controlled over against entering impellers at different levels, control fuel tap 9 and return tube 5 also are installed on bunker 4, control fuel tap 9 is one-way cocks that are subjected to rotational speed governor (not drawing among the figure) control, return tube 5 connects with fuel tank 6 again, the oil inlet pipe of oil pump 7 connects with fuel tank 6, the oil outlet tube of oil pump 7 is exactly a high-pressure oil pipe 8, has so just formed the closed oily peripheral passage of an annular.

Claims

1, a kind of novel fluid power gear changing system is sealed with impeller in bunker, and on the coaxial line, impeller also is equipped with one-way element, it is characterized in that: impeller and controlled fuel tap high-pressure oil pipe mouth over against.

2, according to the novel fluid power gear changing system described in the claim 1, it is characterized in that: the control fuel tap is an one-way cock that is subjected to rotational speed governor control.

3, according to the novel fluid power gear changing system described in the claim 1, it is characterized in that: on the impeller on the same axis one-way element is installed.