CN2035805U

CN2035805U - Hydraulic nozzle motor

Info

Publication number: CN2035805U
Application number: CN88214845U
Authority: CN
Inventors: 赵志贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-10-14
Filing date: 1988-10-14
Publication date: 1989-04-12

Abstract

The utility model relates to an energy conversion device for hydraulic transmission, comprising a rotor, a stator, a lamina, a match oil shaft, a control valve, etc. The high pressure oil ejected by a nozzle on the stator can impel the lamina in a rotor groove to do radial motion and rotary motion along a U-shaped groove. The device has simple structure and can be directly connected with an operating mechanism; the range of torque is larger; stepless gear can be carried out in a definite range; present mechanical transmission and the hydrostatic transmission are simplified; a new device is provided for the use and the popularity of the hydrostatic transmission.

Description

Hydraulic nozzle motor

The utility model relates to the energy conversion device in a kind of hydraulic transmission, belongs to hydraulic transmission accessory technical field.

The use of oil hydraulic motor at present is universal day by day, but still is only limited to the little moment of torsion of high speed.When operation mechanism needs the high pulling torque slow-speed of revolution, must add a cover mechanical reduction gear in addition, the recent little torque motor of high speed (bent shaft type) the acceleration and deceleration mechanism that occurs, complex structure, volume are big, rotating part inertia is also big, is only applicable to the occasion than low speed (1000～1500 rev/mins), in addition, the variable response is relatively poor, slow movement.And low-speed big torque motor also is subjected to restrictions such as its low speed.

The purpose of this utility model provides a kind of novel hydraulic nozzle motor, and this motor configuration is simple, can directly link to each other with operation mechanism, and continuously variable, torque range are big within the specific limits, and variable is easy, can simplify the mechanical transmission that combines with fluid power.

The utility model is made up of parts such as rotor, stator, blade, spring, oil distributing shaft, control valves.When motor drives variable displacement pump work, the high pressure oil of certain flow is transported to oil distributing shaft, spray into a side of U type groove by the nozzle on the stator of same rotation direction by oil duct wherein, enter the seal space that surrounds by garden cylinder in U type groove, nozzle and transition body, blade and the rotor, because stator is fixed on the oil distributing shaft, rotor bearing is on oil distributing shaft, and high pressure oil produces thrust to the blade in the rotor, drives the rotor rotation.When blade slides the outer garden cylinder that rises to stator with the transitional surface of U type groove bottom, have new blade to enter U type groove again and acted on by high pressure oil, two interlobate hydraulic oil is then from the nozzle oil return of the U type groove the other end.Move in circles like this, rotor is rotation constantly just, drives operation mechanism's rotation, outputting power.When changing high pressure oil from the nozzle ejection of another rotation direction, blade is subjected to the effect of opposite direction power, drives rotor and rotates in the opposite direction.

Blade moves radially in rotation.Spring and hydraulic oil are arranged at the top of blade, and the transition surface that forces blade to be adjacent to stator U type groove bottom glides or rises.

A plurality of stators and rotor are installed on oil distributing shaft, and when outer load variations, the pressure of working oil changes thereupon, by the control valve in the oil distributing shaft, controls different nozzle motor work, and adaptation condition needs.

When needs are braked, except that the break that can utilize stator directly upwards to be aligned to, also can utilize suitable counter-rotating.

When hydraulic oil leaks when blade wear or on it, can replenish oil supply, guarantee operation working properly by Fill valve special on the garden cylinder in the rotor.

The utlity model has following characteristics: adaptability is strong, can directly link to each other with operation mechanism, and the little moment of torsion of high speed is not only arranged, and also has low-speed big, within the specific limits stepless change.Realize that counter-rotating is convenient, simple in structure, combination is to satisfy the different operating mode needs of operation mechanism easily.Can make the wheel motor that shell changes easily, machinery, system of vehicle transmission be simplified, for using scope has been opened up in hydraulic transmission.

Accompanying drawing 1 of the present utility model and accompanying drawing 2 are its structure principle chart and its echelon sectional view.1 is rotor among the figure, the 2nd, and stator, the 3rd, oil distributing shaft, the 4th, blade and spring, the 5th, brake post plug sleeve, the 6th, control valve, the 7th, the oil duct that rotor communicates at interval.Rotor is that a centre is the Cylinder that garden column type cavity, two ends add end cap, and outer garden side face of garden cylinder and stator closely cooperates in it, and a plurality of grooves that are used to install blade and spring that evenly distribute on the cylinder of interior garden, and its number is decided by need of work.The width of groove equates that with U type well width on the stator two distributing grooves are arranged at the bottom of each groove, makes it to communicate at interval.The two end cap center of rotor is bearing on the oil distributing shaft by bearing.Stator is that the hollow Cylinder, the adapter sleeve that are inlaid in the rotor cavity are contained on the oil distributing shaft, outside it, be evenly distributed with the smooth U type groove that is referred to as the transition body in a plurality of bottom surfaces on the garden post surface, all there are two nozzles in opposite directions at the two ends of each groove, nozzle is communicated with the oil duct of oil distributing shaft by the oil duct in the stator, at stator spool is housed also radially, by coming brake oil in the middle of it, two ends are spool, are brake disc with the rubbing surface of end cover of rotor.When not braking, lean on the elasticity of braking device that it is resetted.The cross section of U-groove bevel can be

, Shape etc.Its number requires to decide on operation mechanism.Oil distributing shaft is two hollow shaft structure, is fixedly connected with stator, and the nozzle fuel feeding and the oil return respectively of the different direction of corresponding oil duct on stator arranged, and the control valve that oil is joined in control is housed on it.Control valve is that the vittate one or more gardens of sidewall jacket casing is made together, have between a spring, outer garden tube and the interior hollow shaft between the tube bottom of inside and outside garden a spring is also arranged, pressure according to oil pressure and spring, one or more hydraulic pressure nozzle motors of installing on the control oil distributing shaft can work independently, and also can work simultaneously.Blade installation is in rotor, and its quantity equates with slot number, accepts the high pressure oil of nozzle, and does radial motion with the transitional surface rising or the decline of U-groove bevel bottom, promotes the rotor rotation simultaneously.As long as guarantee to have a blade at least in the stator U-groove bevel, promptly have two blades at least on the cylinder of the outer garden of each of stator, so that guarantee mechanism's proper functioning.

According to measuring and calculating, adopting spout radius is 0.25 meter, and the U-groove bevel cross section gross area is 13.579 centimetres ²The wheel hydraulic pressure nozzle motor of making can satisfy the torque demand of zl50 loader, provides enough flows as variable displacement pump, can satisfy its rate request, is used for substituting present hydraulic machine transmission.And adopt spout radius is 0.2 meter, and the U-groove bevel cross section gross area is 26.4 centimetres ²The wheel hydraulic pressure nozzle motor of making can satisfy moment of torsion (advance or the retreat) requirement of liberation CA-1013 automobile, provides enough flows as variable displacement pump, can satisfy its rate request, is used for substituting present mechanical transmission.In a word, the utility model can solve the restriction of present oil hydraulic motor aspect rotating speed and moment of torsion, and hydraulic transmission is more widely used in the every field of national economy.

Claims

1, a kind of hydraulic pressure nozzle motor is made up of parts such as rotor, stator, blade, spring, oil distributing shaft, control valves, it is characterized in that:

(a) described rotor is that a centre is the Cylinder that garden column type cavity, two ends add end cap, on the post surface, interior garden of its cavity, be evenly distributed with a plurality of radial grooves that are used to install blade and spring, two airtight oil grooves are arranged at the bottom of groove, and adjacent groove can be communicated at interval

(b) described stator is inlaid in the cavity of rotor, be hollow Cylinder, adapter sleeve is contained on the oil distributing shaft, outside it, be evenly distributed with the smooth U type groove in a plurality of bottoms on the garden post surface, all there are two nozzles in opposite directions at the two ends of each groove, nozzle is communicated with the oil duct of oil distributing shaft by the oil duct in the stator, at stator break is housed also radially.

(c) oil distributing shaft is two hollow shaft sleeve structures, is fixedly connected with stator, and the nozzle fuel feeding and the oil return respectively of the different direction of corresponding oil duct on stator arranged, and the control valve that oil is joined in control is housed on it.

2, hydraulic pressure nozzle motor according to claim 1 is characterized in that the width of groove of U type groove, the rotor of stator equates.

3, hydraulic pressure nozzle motor according to claim 1 is characterized in that on the oil distributing shaft a plurality of stators and rotor being installed.