Summary of the invention
Based on this, provide a kind of on-vehicle battery mounting platform that accurately can dock with battery case.
A kind of on-vehicle battery mounting platform, is characterized in that, comprising:
Pedestal;
Fixed length linkage, described fixed length linkage is at least three, and described fixed length linkage comprises the stiff end be arranged on described pedestal, and the free end of relatively described stiff end, and the relatively described stiff end of described free end is scalable;
Driving mechanism, is connected with described fixed length linkage, and described driving mechanism can drive described free end to stretch; And
Workbench, the free end of described three fixed length linkages is arranged at intervals on described workbench, and is rotatably connected between described free end and described workbench.
Wherein in an embodiment, described fixed length linkage comprises fixed length connecting rod and lifting assembly, described lifting assembly is fixed on described pedestal and forms described stiff end, one end and the described lifting assembly of described fixed length connecting rod are connected, the other end is described free end, and described free end is arranged on workbench rotationally.
Wherein in an embodiment, described fixed length linkage comprises the first hook hinge, and described fixed length connecting rod is rotatably connected by described first hook hinge and described workbench.
Wherein in an embodiment, described fixed length connecting rod comprises the first pole, the second pole and revolute pair, and described first pole and described second pole are rotatably connected by described revolute pair.
Wherein in an embodiment, described lifting assembly is ball screw assembly, the elevator comprising leading screw and be screwed with described leading screw, and one end and the described elevator of described fixed length connecting rod are rotatably connected.
Wherein in an embodiment, described fixed length linkage also comprises the second hook hinge, and one end of described fixed length connecting rod is rotatably connected by described second hook hinge and described elevator.
Wherein in an embodiment, on-vehicle battery mounting platform also comprises constrained linkage mechanism, and described constrained linkage mechanism is fixed on described pedestal in one end, and the other end and described workbench are rotatably connected.
Wherein in an embodiment, described constrained linkage mechanism comprises the 3rd hook hinge, and described constrained linkage mechanism is rotatably connected by described 3rd hook hinge and described workbench.
Wherein in an embodiment, described fixed length linkage is distributed in around described constrained linkage mechanism.
Wherein in an embodiment, described driving mechanism is be arranged at the drive motors on described lifting assembly.
Above-mentioned on-vehicle battery mounting platform can the adjustment of implementation space attitude, mounting platform and battery case being matched in spatial attitude, realizing docking with the accurate of battery case when accessing battery, avoid and produce impact to battery case and vehicle.
In addition, the multi-freedom parallel connection structure of above-mentioned on-vehicle battery mounting platform, not only make the Space Rotating scope of mounting platform larger, the adjustment of better implementation space attitude, and the rigidity of parallel-connection structure is larger, can the larger object of load weight, make on-vehicle battery mounting platform possess stronger bearing capacity.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Better embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make to disclosure of the present invention understand more thorough comprehensively.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1, the on-vehicle battery mounting platform 10 in one embodiment of the invention, comprise pedestal 100, fixed length linkage 200, driving mechanism 300 and workbench 400.
Fixed length linkage 200 is three.Fixed length linkage 200 comprises the stiff end be arranged on pedestal 100, and the free end of relative stiff end, and free end is scalable relative to stiff end.Driving mechanism 300 for driving free end flexible is connected with fixed length linkage 200.The free end of three fixed length linkages 200 is arranged at intervals on workbench 400, and is rotatably connected between free end and workbench 400.
Specifically in the present embodiment, see also Fig. 2 and Fig. 3, fixed length linkage 200 comprises the first hook hinge 210, fixed length connecting rod 220, lifting assembly 230 and the second hook hinge 240.Lifting assembly 230 is fixed on pedestal 100 to form the stiff end of fixed length linkage 200.One end of fixed length connecting rod 220 and lifting assembly 230 are rotatably connected by the second hook hinge 240.The other end of fixed length connecting rod 220 is arranged on workbench 400 by the first hook hinge 210 rotationally, to form the free end of fixed length linkage 200.
Fixed length connecting rod 220 comprises the first pole 221, second pole 222 and revolute pair 223.First pole 221 and the second pole 222 are rotatably connected by revolute pair 223.First pole 221 of fixed length connecting rod 220 is arranged on workbench 400 rotationally by the first hook hinge 210.Second pole 222 of fixed length connecting rod 220 is rotatably connected by the second hook hinge 240 with lifting assembly 230.
Lifting assembly 230 is ball screw assembly, the elevator 232 comprise leading screw 231, being screwed with leading screw 231 and the mounting bracket 233 for installing leading screw 231.Second pole 222 is rotatably connected by the second hook hinge 240 with elevator 232.Mounting bracket 233 is fixed on pedestal 100.
Driving mechanism 300 comprises the drive motors 310 be arranged on lifting assembly 230.Drive motors 310 is fixed on mounting bracket 233, and is connected with leading screw 231.
First hook hinge 210 forms a ball pair with revolute pair 223 compound on fixed length connecting rod 220, and fixed length connecting rod 220 just has three rotary freedoms.The elevator 232 be screwed with leading screw 231 is rotatably connected with fixed length connecting rod 220 by the second hook hinge 240, make fixed length connecting rod 220 can do rectilinear motion along leading screw 231 guide direction, and then make fixed length connecting rod 220 have the free degree along leading screw 231 direction translation.Fixed length connecting rod 220 can also rotate by OQ t block 232 simultaneously, just increases a rotary freedom, finally makes fixed length connecting rod 220 have five frees degree.
Operationally, drive motors 310 drives leading screw 231 to rotate, the elevator 232 be screwed with leading screw 231 drives fixed length connecting rod 220 to move, and then drive workbench 400 to move by fixed length connecting rod 220, rising or decline in the side of the corresponding single fixed length connecting rod 220 of workbench 400 under the drive of fixed length connecting rod 220, realizes the inclination of workbench 400.Please again consult Fig. 1, the acting in conjunction of three fixed length linkages 200, can realize the adjustment of workbench 400 spatial attitude.
Simultaneously with reference to figure 1 and Fig. 4, on-vehicle battery mounting platform 10 also comprises constrained linkage mechanism 500, and constrained linkage mechanism 500 comprises the 3rd hook hinge 510 and constrained linkage 520.One end of constrained linkage 520 is fixed on pedestal 100, and the other end is rotatably connected with workbench 400 by the 3rd hook hinge 510.A revolute pair 523 in constrained linkage 520 and the 3rd hook hinge 510 are combined into a ball pair, make constrained linkage mechanism 500 have three degree of freedom.
Shown in composition graphs 1, becoming 120 degree between adjacent fixed length linkage 200 is distributed in around constrained linkage mechanism 500, when three fixed length linkages 200 drive workbench 400 implementation space attitude regulation, constrained linkage mechanism 500 serves the effect of constraint support table 400, ensures that workbench 400 can do the motion of space three-freedom always around the 3rd hook hinge 510 and the junction of workbench 400.
In order to make on-vehicle battery mounting platform 10 more reliable, workbench 400 inside is also provided with the spatial attitude of a large amount of detecting element (not shown) feedback operation platform 400, by sending real-time regulating command after the process of control chip (not shown) to corresponding driving mechanism 300, to regulate workbench 400, and then make workbench 400 and battery case (not shown) matching in spatial attitude, realize the demand of Dock With Precision Position during battery altering.
It is pointed out that in above embodiment, the applicable occasion of on-vehicle battery mounting platform 10 is not limited to load batteries of electric automobile, can also be used for the load installing area of other type.Driving mechanism 300 is not limited only to motor and drives, and can also be other type of drive such as hydraulic-driven, air pressure driving.The number of fixed length linkage 200 is not limited only to 3, can also be 4, even more.Fixed length connecting rod and elevator, fixed length connecting rod with workbench, be also connected by elements such as universal joints between constrained linkage with workbench, to replace corresponding hook hinge.
Above-mentioned on-vehicle battery mounting platform 10 can the adjustment of implementation space attitude, when replacing battery case installed by needs, the i.e. angle of inclination of adjustable workbench 400, the adjustment of implementation space attitude, and then workbench 400 and battery case are matched in spatial attitude, realizing accurately docking when accessing battery, avoiding producing battery case and vehicle impacting.
Simultaneously, on-vehicle battery mounting platform 10 adopts three fixed length linkages 200 to be connected with workbench 400 with a constrained linkage mechanism 500 simultaneously, on-vehicle battery mounting platform 10 entirety is made to form the multi-freedom parallel connection structure of closed loop moving, thus the motion making on-vehicle battery mounting platform 10 can realize in a big way, reach better spatial attitude regulating effect, realize battery and the Dock With Precision Position changed is installed.
In addition, on-vehicle battery mounting platform 10 adopts parallel-connection structure, and not only rigidity is comparatively large, possesses stronger load capacity, and makes on-vehicle battery mounting platform 10 overall structure more well-balanced, simple, is convenient to assembling.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.