CN207701624U - A kind of air clutch driving mechanism open in usual - Google Patents

Abstract

The utility model is related to a kind of air clutch driving mechanisms open in usual.A kind of air clutch driving mechanism open in usual, it includes main drive motor, stand-by motor, clutch, clutch separation rocking arm and spring assist cylinder；Piston and push rod are equipped in spring assist cylinder；The inside of spring assist cylinder is divided into the spring housing of the gas chamber and rear side of front side by piston；Spring is equipped in spring housing, spring one end withstands on the rear end of spring housing, the other end is withstood on piston；It is equipped with gas chamber stomata on front side of gas chamber, spring housing's stomata is equipped on rear side of spring housing；Gas chamber stomata is also associated with gas receiver and solenoid valve；Push rod couples with clutch separation rocking arm.A kind of air clutch driving mechanism open in usual of the utility model, clutch is normally opened when realizing no gas, normally closed effect when having gas, it avoids using emergent inflating pump, reduce the system unit cost of thousands of members, and the fault-tolerant ability of hybrid power system is improved, even if can be travelled with the pattern of pure electric vehicle if air-channel system vehicle when something goes wrong.

Description

A kind of air clutch driving mechanism open in usual

Technical field

The utility model is related to coaxial-type parallel-series driving system fields, are driven more particularly to a kind of air clutch open in usual Mechanism.

Background technology

At present in coaxial direct-driving type combined hybrid system, pure electric vehicle drive is individually carried out using main drive motor when in order to realize low speed Dynamic, engine directly drives the function of vehicle (speed reaches engine can be will just start after the rotating speed of steady operation when high speed The driving torque of machine is linked on transmission shaft), it is designed with clutch between two motors, is achieved as desired by clutch opening Or the action closed.But at present since in the market or conventional truck is in the majority, cost and all secure high-volume of reliability are answered Vehicle clutch is mostly the clutch of normally closed type, that is, do not apply in the case of thrust clutch compressing disc and friction from Moving plate is in conjunction with being pressed together.

But do not have since the drive system of vehicle is other than main reducing gear for direct-drive type series parallel hybrid power vehicle Speed changer, so (generally 30km/h or less) engine is can not to participate in driving vehicle (if low to vehicle at low speeds The vehicle for being equivalent to manual gear is driven to block up step 4 under fast state, engine is easy to be suppressed flame-out), therefore direct-driving type series-parallel connection system During type of vehicle, the clutch before two motors is necessarily required to first be switched to bonding state from discrete state system.But Be existing clutch be all normally closed (in conjunction with), thus conventional solution be in the case where car key is screwed to ON gears just Clutch separation servo-cylinder ventilation is first given, pushes the clutch of closure open with the thrust of cylinder.But once the air pressure of vehicle is insufficient, or Other reasons lead to not ventilate to boosting cylinder for clutch, will cause clutch that can not detach, direct consequence is exactly that vehicle can not Traveling can not be also inflated with engine (because the rotation of output shaft of engine is directly transmitted in the case of clutch does not detach To trailing wheel, such case engine can not start)；Once there is the place of gas leakage in gas circuit, such as after vehicle puts a night, The insufficient pressure of gas receiver is to push servo-cylinder open, then automotive power will form endless loop：Air pressure not enough causes clutch cannot Separation → clutch cannot detach, and engine cannot start → and engine cannot start the inflating pump tonifying Qi led to not with its band → no gas cannot open clutch.Therefore using the system of conventional normally closed type clutch driving mechanism, in order to avoid this is dead Cycle just needs in addition to install a set of small emergent inflating pump additional, in gas receiver do not make a call to one by small air pump of meeting an urgent need in the case of gas, Two minutes gas could start the normal tonifying Qi of engine, mend the operations such as electricity to push clutch open.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of air clutch driving mechanism open in usual, make vehicle Emergent inflating pump need not be installed additional, which reduce use costs, and even if compressed gas or gas circuit go wrong, clutch exists State can be maintained a normally open under default situations, vehicle can at least be run in a manner of main drive motor pure electric vehicle, and it is dynamic to improve mixing Fault-tolerant ability of the Force system for minor issue.

Technical solution adopted by the utility model to solve its technical problems is：A kind of air clutch driving machine open in usual Structure, it includes main drive motor, stand-by motor and is arranged in the main clutch for driving motor and stand-by motor；It is arranged on the clutch There is clutch separation rocking arm；It is provided with servo-cylinder erection support on the main drive motor；It is installed on the servo-cylinder erection support There is spring assist cylinder；It is provided with piston and push rod in the spring assist cylinder；The inside of the spring assist cylinder is divided by piston The gas chamber of front side and the spring housing of rear side；It is provided with spring in the spring housing, spring one end withstands on the rear end, another of spring housing End is withstood on piston；It is provided with gas chamber stomata on front side of the gas chamber, spring housing's stomata is provided on rear side of the spring housing；Institute It states gas chamber stomata and is also associated with gas receiver, solenoid valve is additionally provided in the gas circuit between gas chamber stomata and gas receiver；It is described to push away Bar couples with clutch separation rocking arm.

The solenoid valve is two-bit triplet solenoid valve.

When the spring assist cylinder does not work, solenoid valve is in obstructed electricity condition, and the piston of spring assist cylinder is in spring The lower control push rod of effect is released；Push rod pushes clutch separation rocking arm that clutch is made to be in discrete state.

When the spring assist cylinder working, solenoid valve is in energized state, and compressed gas enters to spring from gas receiver The active force of piston overpowers spring is pushed to move backward in the gas chamber of servo-cylinder, control push rod pulls clutch separation rocking arm, makes Clutch is in bonding state.

The beneficial effects of the utility model：A kind of air clutch driving mechanism open in usual of the utility model, realizes nothing Clutch is normally opened when gas, normally closed effect when having gas, avoid reducing using emergent inflating pump the system units of thousands of members at This, and the fault-tolerant ability of hybrid power system is improved, even if can be with pure electric vehicle if air-channel system vehicle when something goes wrong Pattern travels.

Description of the drawings

Fig. 1 is a kind of schematic diagram of air clutch driving mechanism open in usual of embodiment；

Fig. 2 is a kind of schematic diagram of the principle of air clutch driving mechanism open in usual of embodiment.

Specific implementation mode

In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the scope of protection of the utility model.

Embodiment

As depicted in figs. 1 and 2, a kind of air clutch driving mechanism open in usual is present embodiments provided, it includes main drive electricity Machine 1, stand-by motor 2 and be arranged it is main drive motor 1 and stand-by motor 2 clutch 3；It is provided with clutch on the clutch 3 Detach Rocker arm 4；It is provided with servo-cylinder erection support 5 on the main drive motor 1；Bullet is installed on the servo-cylinder erection support 5 Spring servo-cylinder 6；It is provided with piston 61 and push rod 62 in the spring assist cylinder 6；The inside of the spring assist cylinder 6 is by piston 61 It is divided into the spring housing 63 of the gas chamber 64 and rear side of front side；Spring 67 is provided in the spring housing 63,67 one end of spring withstands on bullet The rear end of spring room 63, the other end are withstood on piston 61；The front side of the gas chamber 64 is provided with gas chamber stomata 66, the spring housing 63 Rear side be provided with spring housing's stomata 65；The gas chamber stomata 66 is also associated with gas receiver 7, in gas chamber stomata 66 and gas receiver 7 Between gas circuit on be additionally provided with solenoid valve 8；The push rod 62 couples with clutch separation Rocker arm 4；The solenoid valve 8 is two Three-way magnetic valve.

A kind of air clutch driving mechanism open in usual of the present embodiment, when spring assist cylinder 6 does not work, solenoid valve 8 is in The piston 61 of obstructed electricity condition, spring assist cylinder 6 controls the release of push rod 62 under the action of spring 67；Push rod 62 pushes clutch Separation Rocker arm 4 makes clutch 3 be in discrete state；When spring assist cylinder 6 works, solenoid valve 8 is in energized state, compressed gas It pushes piston 61 that the active force of spring 67 is overcome to move backward out of gas chamber that enter to spring assist cylinder 6 in gas receiver 7, controls Push rod 62 pulls clutch separation Rocker arm 4, and clutch 3 is made to be in bonding state.

A kind of air clutch driving mechanism open in usual of the present embodiment, clutch is normally opened when realizing no gas, has gas often The effect closed avoids, using emergent inflating pump, reducing the system unit cost of thousands of members, and improve hybrid power system Fault-tolerant ability, though it can be travelled with the pattern of pure electric vehicle if air-channel system vehicle when something goes wrong, and also such design is thought Road so that under the premise of meeting reliable request, cost is lower, it is not necessary to individually develop special normally open clutch.

Above-described embodiment should not in any way limit the utility model, all by the way of equivalent replacement or equivalency transform The technical solution of acquisition is all fallen in the scope of protection of the utility model.

Claims (4)

1. a kind of air clutch driving mechanism open in usual, it is characterised in that：It includes main drive motor, stand-by motor and setting in master Drive the clutch of motor and stand-by motor；Clutch separation rocking arm is provided on the clutch；It is arranged on the main drive motor There is servo-cylinder erection support；Spring assist cylinder is installed on the servo-cylinder erection support；It is provided in the spring assist cylinder Piston and push rod；The inside of the spring assist cylinder is divided into the spring housing of the gas chamber and rear side of front side by piston；The spring housing It is inside provided with spring, spring one end withstands on the rear end of spring housing, the other end is withstood on piston；It is provided with gas on front side of the gas chamber Room stomata is provided with spring housing's stomata on rear side of the spring housing；The gas chamber stomata is also associated with gas receiver, in gas chamber stomata It is additionally provided with solenoid valve in gas circuit between gas receiver；The push rod couples with clutch separation rocking arm.

2. a kind of air clutch driving mechanism open in usual according to claim 1, it is characterised in that：The solenoid valve is two Position-3-way solenoid valve.

3. a kind of air clutch driving mechanism open in usual according to claim 1, it is characterised in that：The spring assist cylinder When not working, solenoid valve is in obstructed electricity condition, and the piston of spring assist cylinder controls push rod release under the action of the spring；Push rod Push clutch separation rocking arm that clutch is made to be in discrete state.

4. a kind of air clutch driving mechanism open in usual according to claim 1, it is characterised in that：The spring assist cylinder When work, solenoid valve is in energized state, and compressed gas pushes piston out of gas chamber that enter to spring assist cylinder in gas receiver The active force of spring is overcome to move backward, control push rod pulls clutch separation rocking arm, and clutch is made to be in bonding state.