A kind of auxiliary brake
The invention belongs to technical field of vehicle control, particularly to a kind of auxiliary brake.
The brake gear of existing vehicle is all to be produced brake force by braking clamp pressure brake disc or brake shoes extruding brake drum, power resources are divided into oil to stop gentle stopping, and these brake tools are all by the wheel in advancing reducing rotating speed or stopping operating and reach to brake purpose.But when road surface is snowy; ice, water, in the presence of sand etc. can substantially reduce the material of tire and ground friction coefficient; only by the running speed reducing wheel; can not effectively realize slowing down, often have brake and floored, but tire occurs slippery conditions with road surface; vehicle is caused cannot normally to slow down stopping; occur that sideslip, the even vehicle that breaks away such as are turn-taked on road surface at the out-of-control phenomenon, cause the collision of vehicle, even jeopardize life and the property safety of the outer personnel of Che Neiche.
The ABS system that vehicle is equipped with now, prevent wheel in brake process from being caused vehicle manipulation in stays to design use by long-time locking, the brake principle of ABS is to be become the extruding of pulse interval by the most continuously extruded original brake disc or brake drum, driver can be made to adjust the direction of car in brake process, its essence is still slowed down by wheel braking, it is impossible to ensure the positive braking distance of slippery road surface.
Summary of the invention
For the technical problem of above-mentioned existence, the invention provides a kind of auxiliary brake not changing existing tire braking present situation, stretch to ground by controlling machinery from vehicle chassis motion, ground is produced effectively friction, assists vehicle deceleration.
The present invention seeks to be achieved through the following technical solutions:
A kind of vehicle auxiliary brake, is installed on vehicle, and including driver, push rod, auxiliary brake mechanism, described push rod is connected with described auxiliary brake mechanism, and described driver is used for driving described push rod to control described auxiliary brake mechanism action.
Further, described auxiliary brake mechanism includes fixing seat, connecting rod and brake pad, and described fixing seat is fixedly installed on vehicle chassis, and one end of described connecting rod is rotationally connected with described fixing seat, and the other end is rotationally connected with described brake pad.
Further, the surface that described brake pad contacts with road surface is provided with spine structure.
Further, described brake pad is planar structure.
Further, the edge of described brake pad is rounding transition.
Further, described brake pad is connected by universal rotational follower with described connecting rod.
Further, described driver is fixedly installed on described vehicle chassis, one end of described push rod is rotationally connected with described driver, the other end is slidably connected with described connecting rod, when push rod described in described driver drives rotates upwardly and downwardly, described push rod slidably reciprocates in described connecting rod, thus controls described connecting rod and pack up or land.
Further, described driver is electronic driver, and described push rod is electronics push rod；Or, described driver is that gas is stopped driver, and described push rod is air pressure push rod；Or, described driver is that oil is stopped driver, and described push rod is oil tappet.
Meanwhile, present invention also offers a kind of vehicle including the above auxiliary brake.
Further, described vehicle has the most a set of described auxiliary brake.
The invention has the beneficial effects as follows:
This invention takes an auxiliary brake being totally independent of vehicle tyre, by being pressed with effect friction road surface under the brake pad independence of this device, the timely and effective braking of vehicle can be helped.Relatively more sharp-pointed brake pad can be through the direct friction such as water, ice road surface, it is also possible to acting on ice and snow and scratch ice and snow road, increasing friction force reaches to brake purpose.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the auxiliary brake structural representation that the embodiment of the present invention provides；
Fig. 2 is the auxiliary brake collapsed state exemplary plot that the embodiment of the present invention provides；
Fig. 3 is the auxiliary brake of embodiment of the present invention offer schematic layout pattern on vehicle chassis.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.
Seeing Fig. 1, this figure is the structural representation of the auxiliary brake embodiment that the present invention provides.
As it is shown in figure 1, this device includes driver 11, push rod 12, auxiliary brake mechanism 20, wherein push rod 12 is connected with auxiliary brake mechanism 20, driver 11 be used for driving push rod 12 to control auxiliary brake mechanism 20 action, including the landing of auxiliary brake mechanism or pack up.
According to the difference of type of vehicle, driver 11 can be electronic driver, corresponding, and push rod 12 is electronics push rod；Or, driver 11 can be that gas is stopped driver, corresponding, push rod 12 air pressure push rod；Or, driver 11 can be that oil is stopped driver, and corresponding, described push rod 12 is oil tappet.
Concrete, auxiliary brake mechanism 20 includes that fixing seat 21, connecting rod 22 and brake pad 23, fixing seat 21 are fixedly installed on vehicle chassis, and one end of connecting rod 22 is rotationally connected with fixing seat 21, and the other end is rotationally connected with brake pad 23.Driver 11 is fixedly installed on vehicle chassis, one end of push rod 12 is rotationally connected with driver 11, the other end is slidably connected with connecting rod 22, when driver 11 drives push rod 12 to rotate upwardly and downwardly, push rod 12 slidably reciprocates in connecting rod 22, drive connecting rod 22 land or pack up, thus realize brake pad 23 with the contact on road surface and separation.
In order to make brake pad 23 maximum with the contact area on road surface, thus the frictional resistance produced is maximum, and auxiliary brake effect is optimum, it is preferable that brake pad 23 uses planar structure, and each edge is rounding transition；In order to increase frictional resistance further, it is preferable that be provided with spine structure with road surface on the surface that brake pad 23 contacts, with useful effect in ice and snow road, or ice and snow can be produced bigger frictional resistance, or through direct friction ground such as water, sand.
The frictional resistance sudden change caused in order to avoid road surface is concavo-convex, brake pad 23 is connected by universal servo-actuated rotating mechanism with connecting rod 22, it is ensured that the service life of auxiliary brake.
As in figure 2 it is shown, when auxiliary brake is not starting when, be stowed on the chassis of vehicle, do not affect the property passed through of vehicle.As shown in the figure, when auxiliary brake is starting when, and the brake pad 23 on contact road surface, owing to having spine structure, ice can be punctured, snow, water, sand etc. causes car skidding material, the directly friction to ground or bigger to ice and snow generation, ensure that the travel direction of vehicle is correct, quickly reduce speed, be greatly reduced, avoid tyre slip to cause brake failure situation.
Meanwhile, present invention also offers the vehicle of a kind of auxiliary brake included described by above detailed description of the invention, described vehicle includes the most a set of described auxiliary brake.
As it is shown on figure 3, be the vehicle structure schematic diagram on vehicle chassis with four set auxiliary brakes.
It should be noted that, when vehicle has many set auxiliary brakes, the vehicle hind wing problem that front part of vehicle to be considered brake effectively causes, these many covering devices location layout on vehicle chassis and sequence of movement are designed, ensure on vehicle traffic direction after the brake pad in front action or be failure to actuate.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction.Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, technical solution of the present invention is made many possible variations and modification by the method and the technology contents that all may utilize the disclosure above, or is revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the range of technical solution of the present invention protection.