CN104002665A - Automobile for children - Google Patents
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- CN104002665A CN104002665A CN201410171579.8A CN201410171579A CN104002665A CN 104002665 A CN104002665 A CN 104002665A CN 201410171579 A CN201410171579 A CN 201410171579A CN 104002665 A CN104002665 A CN 104002665A
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Abstract
The invention discloses an automobile for children and belongs to the technical field of automobiles for children. The automobile for children solves the problems of simple structure and less function of the existing automobiles for children. The automobile for children comprises a frame, a chassis and wheels, a central processing unit, a brake accelerator device, a double-drive transmission device and a suspension device are mounted in the frame, the suspension device is mounted on the chassis, the double-drive transmission device comprises a drive motor and a differential mechanism, the drive motor is connected with the differential mechanism and is also connected with the central processing unit through a wire, the brake accelerator device comprises a brake pedal component, an accelerator pedal component, a brake pump and a disc brake mechanism, wherein the brake pedal component comprises a brake pedal and a brake support, the brake pedal is connected with a brake pump and is hinged to the brake support through a rotating shaft, and a Hall sensor is mounted on each of the brake support and an accelerator support and is connected with the central processing unit through a wire. The automobile for children has advantages of strong practicability and high safety.
Description
Technical field
The invention belongs to juvenile motor vehicle technical field, particularly a kind of juvenile motor vehicle.
Background technology
In daily life, children like being sitting in toy car and play, and the kind of toy for children automobile is also varied, but their simple in structure and function singlenesses can not improve children's interest in game play, do not possess the driving sense of reality of existing adult's automobile.In addition, because children cannot drive adult's automobile, someone has designed emulation toy for children automobile, it in shape compared with conventional toy automobile more as adult automobile, but inherent operation is still very simple, sensation during emulation toy for children vehicle drive and actual driving adult automobile are felt to greatly differ from each other.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of rational in infrastructure, practical, safe juvenile motor vehicle.
Object of the present invention can realize by following technical proposal: a kind of juvenile motor vehicle, comprise vehicle frame, be arranged on the chassis of bottom of frame and be arranged on four wheels on vehicle frame, it is characterized in that, in vehicle frame, be provided with central process unit, braking accelerator device, two drive transmission devices and draft hitch, described draft hitch is arranged on chassis, described two drive transmission devices comprise drive motor and diff, described drive motor is connected with diff by input shaft and is connected with central process unit by electric wire, the first semiaxis that is symmetrically arranged with coaxial setting on diff is connected with wheel by transmission shaft respectively with the second semiaxis with the second semiaxis and described the first semiaxis, braking accelerator device comprises brake pedal assembly, accelerator pedal module, brake pump and the disc brake mechanism that is arranged on Wheel bearing and communicates with brake pump, wherein brake pedal assembly comprises brake pedal and is arranged on the brake bearing on vehicle frame, brake pedal is connected with brake pump and brake pedal is articulated and connected on brake bearing by rotating shaft, accelerator pedal module comprises Das Gaspedal and is arranged on the throttle bearing on vehicle frame, Das Gaspedal is articulated and connected on throttle bearing by rotating shaft, brake bearing with on throttle bearing, Hall element is all installed and Hall element is connected with central process unit by electric wire.
In above-mentioned juvenile motor vehicle, described diff comprises body skin and is arranged on the inner housing in body skin, described inner housing has driven gear, on diff, be also provided with can be by inner housing locked and make the differential locking-device of the first semiaxis and the synchronized rotation of the second semiaxis simultaneously, described input shaft stretches in body skin and is connected with a joggle by main gear and driven gear, in described inner housing, be provided with and the first semiaxis, the second semiaxis is corresponding the first adapter shaft arranging respectively, the second adapter shaft, described the first adapter shaft, on the second adapter shaft, be respectively equipped with the first side gear, the second side gear, in described inner housing, by planet axis, at least one pair of planetary wheel is installed, each planetary wheel is all connected with a joggle between the first side gear and the second side gear and rotates relative to inner housing.
In above-mentioned a kind of juvenile motor vehicle, described differential locking-device comprises control stalk, return unit and by grafting piece and the movable part that the locked lock dog of inner housing can be formed, lock dog has annular groove and is movably arranged on the first adapter shaft, control stalk is articulated and connected on grafting piece and return unit fixes between control stalk and grafting piece, on grafting piece, be provided with at least two inserting columns that can stretch in annular groove, and when control stalk compression return unit, return unit can drive grafting piece to move and make lock dog depart from inner housing.
In above-mentioned a kind of juvenile motor vehicle, described suspension system comprises vibration damper assembly, support, axle drive shaft and swing arm, described vibration damper assembly and swing arm are symmetrically distributed in the both sides of support, described support is connected on chassis, one end of described swing arm is hinged on chassis one side, the other end is hinged with tumbler, one end of described vibration damper assembly is hinged on support, the other end is hinged in swing arm the one end away from chassis, on described tumbler, offer the first mounting hole, in described the first mounting hole, turning cylinder is installed, one end of described turning cylinder is connected to wheel, the other end is connected to axle drive shaft, described axle drive shaft can transmitting torque power arrive turning cylinder, described in when the stressed rotation of tumbler, tumbler and turning cylinder can rotate around the hinge-point of tumbler, described vibration damper assembly comprises bumper, be connected in the end cap at bumper two ends and be set in the Compress Spring on bumper, the two ends of described Compress Spring lean respectively on the end cap at bumper two ends.
In above-mentioned a kind of juvenile motor vehicle, the riser that described support is oppositely arranged and is connected on chassis by two forms, on described riser, offer the second mounting hole, the two ends of described vibration damper assembly are provided with sleeve, on described end cap, be provided with mounting blocks, described sleeve is connected on mounting blocks, one side on described chassis is provided with two projections, between described projection, form a groove, one end of described swing arm is inserted in groove and is hinged in projection, the other end of described swing arm is provided with adapter plate, on described adapter plate, be provided with two and be oppositely arranged flat board, the sleeve of the described vibration damper assembly other end is hinged on two flat boards, described swing arm is rotated and can be driven vibration damper assembly compression or stretch out.
In above-mentioned a kind of juvenile motor vehicle, described swing arm comprises articulated section, support portion and location division, described support portion is flats, support portion forms by rake with the crossing horizontal part of rake, described horizontal part is set to wedge angle, described articulated section is arranged on the other end of support portion, on described articulated section, offer hinge hole, described hinge hole is hinged on chassis by straight pin, described location division is vertically set on horizontal part, on described location division, be provided with knock hole, described axle drive shaft is connected on turning cylinder through knock hole, the adapter plate arranging on location division is parallel with support portion, on the closed angle end of described support portion and adapter plate, offer the first rotation hole of concentric, described tumbler is hinged on the first rotation hole.
In above-mentioned a kind of juvenile motor vehicle, described axle drive shaft comprises the first transmission shaft, second driving shaft and the 3rd transmission shaft, one end of described the first transmission shaft is connected to propulsion source, the other end is fixed with pipe, on described pipe, offer chute, one end of described second driving shaft is arranged to spherical, and run through the centre of sphere and be provided with a trundle, described trundle can be slidably installed in chute and transmit torsion, the other end of described second driving shaft is connected by universal-joint with one end of the 3rd transmission shaft, and the other end of described the 3rd transmission shaft is connected to turning cylinder.
In above-mentioned a kind of juvenile motor vehicle, described disc brake mechanism comprises the brake clamp that is arranged on brake disc in the form of annular discs on Wheel bearing and is arranged on brake disc side, on brake clamp, offer the caulking groove of setting corresponding to brake disc, brake disc partly stretch in caulking groove and with caulking groove free-running fit, at brake disc middle part, offer mesopore, and along center of circle direction horizontal-extending, be formed with some around the center of circle and well-distributed installation base at mesopore inwall, described brake disc middle part is provided with the reel being all connected with each installation base, described reel is set on Wheel bearing, described brake disc can circumferentially rotate and can be along Wheel bearing axial slip around Wheel bearing, described brake disc has on driving surface and driving surface and is evenly distributed with some arc-shaped through-holes around mesopore.
In above-mentioned a kind of juvenile motor vehicle, described brake clamp consists of the first caliper and the second caliper, and in the second caliper, be provided with the oil circuit communicating with brake pump, described caulking groove is fastened and is formed by the first caliper and the second caliper, described the first caliper is arranged on the side near driving surface, described the second caliper is arranged on the side away from driving surface, and in the second caliper, be provided with the catch piston over against brake disc, on catch piston and the first caliper embedded be provided with some friction linings and each friction lining all with brake disc free-running fit.
In above-mentioned a kind of juvenile motor vehicle, in brake pump, offer plunger cavity and described plunger cavity communicates with brake clamp by pipeline, brake piston is installed in plunger cavity, on brake pedal, be connected with a push rod and brake piston outer end is connected with push rod.
Compared with prior art, the present invention has the following advantages:
1, at brake bearing, with on throttle bearing, the Hall element being connected with central process unit is all installed, when stepping on throttle separately, Hall element on throttle bearing sends signal to central process unit place, by central process unit transmitted signal and indicate the motor rotation in juvenile motor vehicle, realize and accelerate function again; While stepping at the same time brake pedal and Das Gaspedal, the signal that on central process unit priority processing brake bearing, Hall element sends, and block the signal that on throttle bearing, Hall element sends, make the in the situation that of the entry into service of disc brake mechanism, even if step on Das Gaspedal, can not make motor rotation yet, just say that vehicle can not accelerate, while having guaranteed that children step on brake pedal and Das Gaspedal simultaneously flurried in the situation that yet, vehicle can stop fast, safe.
2, two drive transmission devices are reasonable in design, and compact in design between each parts makes the volume of overall drive motor smaller, has improved space availability ratio, and in actual mechanical process, each parts assembling and dismounting are all more convenient; Driver can realize the locked function of diff by controlling differential locking-device quickly and easily simultaneously, reasonable in design, make two wheels that two-semiaxle connects can realize synchronized rotation, and front-wheel and trailing wheel keep same rotating speed, when vehicle is got into a difficult position, can depart from time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of Dual Drive driving device in the present invention.
Fig. 3 is the structural representation of diff in the present invention.
Fig. 4 is that in the present invention, diff is removed the structural representation after cover plate.
Fig. 5 is the connection structure schematic diagram of the first semiaxis and the second semiaxis in the present invention.
Fig. 6 is the structural representation of differential locking-device in the present invention.
Fig. 7 is the structural representation of piece of pegging graft in the present invention.
Fig. 8 is the structural representation of lock dog in the present invention.
Fig. 9 is the structural representation of inner housing in the present invention.
Figure 10 is the structural representation of braking accelerator device in the present invention.
Figure 11 is brake structure schematic diagram in the present invention.
Figure 12 is brake pedal unit construction schematic diagram in the present invention.
Figure 13 is the structural representation of Hall element in the present invention.
Figure 14 is the structural representation of accelerator pedal module in the present invention.
Figure 15 is the structural representation of brake disc in the present invention.
Figure 16 is the perspective view of draft hitch in the present invention.
Figure 17 is the structural representation of draft hitch in the present invention.
Figure 18 is the structural representation of swing arm and tumbler in the present invention.
Figure 19 is the structural representation of axle drive shaft in the present invention.
The specific embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Fig. 1 to Figure 19, this juvenile motor vehicle comprises vehicle frame 100, is arranged on the chassis 200 of vehicle frame 100 bottoms and is arranged on four wheels 300 on vehicle frame 100, central process unit 400, braking accelerator device, two drive transmission device and draft hitch are installed in vehicle frame 100, and described brake gear, accelerator device and two drive transmission devices are all connected with central process unit 400 by circuit.
Dual Drive driving device comprises drive motor 500 and the diff 501 being arranged on chassis 200, drive motor 500 is connected with diff 501 by input shaft 5015 and input shaft 5015 has main gear 5016, on diff 501, be symmetrically arranged with the first semiaxis 5020 and the second semiaxis 5021, the first semiaxis 5020 is connected with two wheels 300 by transmission shaft 5040 respectively with the second semiaxis 5021, diff 501 comprises body skin 5011 and is arranged on the inner housing 5017 in body skin 5011, on inner housing 5017, there is driven gear 5018, on diff 501, be also provided with can be by inner housing 5017 locked and make the differential locking-device 5028 of the first semiaxis 5020 and the second semiaxis 5021 synchronized rotations simultaneously.
It is worth mentioning that, the wheel 300 that this Dual Drive driving device connects is typically chosen in front-wheel (being that front-wheel is two drives), also can be chosen as trailing wheel (being that trailing wheel is two drives), corresponding diff 501 changes to and the installation site of wheel 300 with orientation.The installation site of drive motor 500 can arrange relatively more flexibly, is not limited to the certain and diff 501 of drive motor 500 in same orientation, between drive motor 500 and diff 501, can be connected with adapter shaft, simple in structure.
In addition, at juvenile motor vehicle etc., be applicable in the vehicle of this case diff 501, the propulsive effort of drive motor 500 imports into via input shaft 5015, and last propulsive effort sends wheel 300 via the first semiaxis 5020, the second semiaxis 5021 to by transmission shaft 5040 respectively.
Preferably, the wheel 300 that this Dual Drive driving device connects is chosen as front-wheel, is characterized in that nose heave tail is light, makes the above weight of integrated child automobile sixty percent concentrate on vehicle frame 100 leading portions, because car load " is hauled away " by front-wheel, so car load straight motion stability can be good.Drive motor 500 directly drives front-wheel with semiaxis after diff 501, does not need through transmission shaft, and kinetic equation loss is less, is applicable to the similar dillies such as juvenile motor vehicle.
Preferably, input shaft 5015 stretches in body skin 5011 and by main gear 5016 and driven gear 5018 and is connected with a joggle, in inner housing 5017, be provided with the first adapter shaft 5022 and the second adapter shaft 5025 with the first semiaxis 5020 and the corresponding setting of the second semiaxis 5021 difference, on the first adapter shaft 5022 and the second adapter shaft 5025, be respectively equipped with the first side gear 5023 and the second side gear 5026, in inner housing 5017, by planet axis, at least one pair of planetary wheel 5027 is installed, each planetary wheel 5027 is all connected with a joggle between the first side gear 5023 and the second side gear 5026 and rotates relative to inner housing 5017.
Preferably, differential locking-device 5028 comprises control stalk 5029, return unit 5031 and can be by the locked movable part 5032 of inner housing 5017, movable part 5032 is movably arranged on the first adapter shaft 5022, return unit 5031 is connected with movable part 5032, control stalk 5029 is articulated and connected on movable part 5032, control stalk 5029 can rotate around the hinged support of movable part 5032 and compress or unclamp return unit 5031, when control stalk 5029 compression return unit 5031, return unit 5031 drives movable part 5032 to depart from inner housing 5017, when control stalk 5029 unclamps return unit 5031, return unit 5031 resets gradually and drives movable part 5032 locked inner housing 5017 gradually under the effect of reset screen resilience.
In practical work process, can be connected with control stalk 5029 by external device, and then realize the opening and closing of differential locking-device 5028.This diff 501 is under initial condition, driver controls control stalk 5029 state in compression return unit 5031 always by extraneous (stay cord etc.) assembly, movable part 5032 now and inner housing 5017 are in disengaged position, diff 501 is not locked, that is to say that diff 501 is in normal working; When driver need to be adjusted to diff 501 locking state (losing differential function), only need unclamp control stalk 5029, make the natural resilience of return unit 5031 and drive the locked inner housing 5017 of movable part 5032, diff 501 now has just lost differential action, above-mentioned diff 501 structure designs are simple, operating process is convenient, convenience is provided to people's daily life.
Preferably, movable part 5032 comprises grafting piece 5033 and can be by the locked lock dog 5035 of inner housing 5017, lock dog 5035 has annular groove 5036 and is movably arranged on the first adapter shaft 5022, control stalk 5029 is articulated and connected on grafting piece 5033 and return unit 5031 fixes between control stalk 5029 and grafting piece 5033, on grafting piece 5033, be provided with at least two inserting columns 5034 that can stretch in annular groove 5036, when control stalk 5029 compression return unit 5031, return unit 5031 drives grafting piece 5033 to move, the piece 5033 of simultaneously pegging graft drives lock dog 5035 to depart from inner housing 5017, when control stalk 5029 unclamps return unit 5031, return unit 5031 drives grafting piece 5033 to reset gradually and drives lock dog 5035 locked inner housing 5017 gradually under the effect of reset screen resilience.
The design of grafting piece 5033 and lock dog 5035, topology layout is compact tight and fixed, has both prevented the landing of movable part 5032 in working process, has guaranteed again the stability of diff 501 work.In addition, the cooperation of annular groove 5036 and inserting column 5034, reasonable in design and can not take larger space, in the first adapter shaft 5022 rotates, lock dog 5035 is along with the first adapter shaft 5022 rotates together, inserting column 5034 rests in annular groove 5036 always, does not affect the normal operation of this diff 501.
Preferably, the end face that inner housing 5017 faces the first semiaxis 5020 is provided with a plurality of projections 5019, the end face that lock dog 5035 faces inner housing 5017 is provided with and projection 5019 a plurality of draw-in grooves 5037 one to one, such structure design, rationally distributed and can effectively prevent the circumferential play of inner housing 5017 and lock dog 5035, lock dog 5035 also plays certain firm effect to inner housing 5017, has improved work efficiency, has guaranteed " the locked effect " of differential locking-device 5028.
When driver need to be adjusted to locking state by diff 501, only need unclamp control stalk 5029, make the natural resilience of return unit 5031 and drive grafting piece 5033 to move, grafting piece 5033 drives the locked inner housing 5017 of lock dog 5035, now projection 5019 fixes one by one in corresponding draw-in groove 5037, and structure design is simple and fixed.
Further preferably, projection 5019 quantity are that four and uniform ring face on the end face of the first semiaxis 5020 around being distributed in inner housing 5017, easy to process and can meet diff 501 real work demands.In addition, the width of design draw-in groove 5037 is slightly larger than the width of projection 5019, has certain dash clearance when making the locked inner housing of lock dog 5,035 5017.Owing to can producing shake unavoidably in Vehicle Driving Cycle process, the micro-displacement producing during this time may make projection 5019, with the relative position between corresponding draw-in groove 5037, a little skew occur, if the width design of draw-in groove 5037 equates with the width of projection 5019, may cause projection 5019 cannot accurately snap in the situation of corresponding draw-in groove 5037, affect work efficiency.
Preferably, the first adapter shaft 5022 middle parts are provided with synchronous external gear 5024, lock dog 5035 middle parts offer central through hole 5038, on the madial wall of central through hole 5038, be provided with and synchronize the synchronous inner rack 5039 that external gear 5024 is meshed, lock dog 5035 is movably arranged on the first adapter shaft 5022 by synchronous inner rack 5039 and can be along the first adapter shaft 5022 axial translation.Such reasonable in design, lock dog 5035 and the first adapter shaft 5022 are fitted tightly, effectively prevent the circumferential play of lock dog 5035, the first adapter shaft 5022 has also been played to firm effect, further guaranteed the synchronized rotation between the locked rear two-semiaxle of diff 501.
Preferably, body skin 5011 consists of cover plate 5012 and drain pan 5013, and Assembly &Disassembly is all more convenient.On drain pan 5013, be provided with at least one reinforced rib 5014, make body skin 5011 fixing more firm, improved the working stability of each parts in body skin 5011.
Preferably, control stalk 5029 is arranged on outside cover plate 5012, and grafting piece 5033 parts are stretched out outside cover plate 5012, and control stalk 5029 one end are articulated and connected on grafting piece 5033, and the other end is provided with a draw ring 5030.Under initial condition, driver can pass draw ring 5030 by external devices such as stay cords, and then controls control stalk 5029 state in compression return unit 5031 always, simple in structure, easy to use.
Preferably, the first semiaxis 5020 and the second semiaxis 5021 coaxially arrange, and the setting vertical with input shaft 5015 respectively of the first semiaxis 5020, the second semiaxis 5021 is rationally distributed, has improved space availability ratio.
In this case, diff 501 is in vehicle straight-line travelling process, the propulsive effort of drive motor 500 turns to 90 ° to be delivered on driven gear 5018 (Ring gear) via the main gear 5016 on input shaft 5015, driven gear 5018 drives two planetary wheels 5027 to rotate together (consistent with wheel 300 hand of rotation), and drive two side gear rotations, thereby drive wheel 300 to advance.Now owing to being straight-line travelling, wheel 300 suffered resistance in two of left and right is the same, therefore, and two planetary wheel 5027 not rotations.
In turn inside diameter process, because the resistance that left and right two wheels 300 are subject to is different, between two side gears in left and right, will produce resistance difference, this just makes two planetary wheels 5027 also will produce rotation when semiaxis rotates, thereby absorption resistance difference, left and right two wheels 300 can be rotated with different speed, thereby allow vehicle complete smoothly turning.
In addition, in the situation that not needing to use diff 501, driver can control differential locking-device 5028 quickly and easily, and diff 501 is locked, two wheels 300 that two semiaxis are connected can be realized synchronized rotation, and front-wheel and trailing wheel keep same rotating speed, when being got into a difficult position, vehicle can depart from time.
Braking accelerator device in this juvenile motor vehicle is arranged in vehicle frame 100, comprises brake pedal assembly, accelerator pedal module, brake pump 6014 and is arranged on wheel 300 bearings and the disc brake mechanism communicating with brake pump 6014.
Wherein brake pedal assembly comprises brake pedal 600 and is arranged on the brake bearing 6013 on vehicle frame 100, brake pedal 600 is connected with brake pump 6014 and brake pedal 600 is articulated and connected on brake bearing 6013 by rotating shaft 6024, accelerator pedal module comprises Das Gaspedal 6018 and is arranged on the throttle bearing 6019 on vehicle frame 100, Das Gaspedal 6018 is articulated and connected on throttle bearing 6019 by rotating shaft 6024, brake bearing 6013 with Hall element 6017 and Hall element 6017 be all installed on throttle bearing 6019 by electric wire, be connected with central process unit 400.
When stepping on throttle separately, the Hall element 6017 on throttle bearing 6019 sends signal to central process unit 400 places, then by central process unit 400 transmitted signals and indicate 500 runnings of drive motor in juvenile motor vehicle, realizes and normally travel and accelerate function; While stepping at the same time brake pedal 600 and Das Gaspedal 6018, the signal that on central process unit 400 priority processing brake bearings 6013, Hall element 6017 sends, and block the signal that on throttle bearing 6019, Hall element 6017 sends, make the in the situation that of brake entry into service, even if step on Das Gaspedal 6018, can not make drive motor 500 runnings yet, also just say that vehicle can not accelerate, while having guaranteed that children step on brake pedal 600 and Das Gaspedal 6018 simultaneously flurried in the situation that, vehicle can stop fast, safe.
At throttle bearing 6019 sidepieces and brake bearing 6013 sidepieces, box body 6021 is all installed, two above-mentioned Hall elements 6017 are arranged on respectively in corresponding box body 6021.In order not affect the sensitivity of Hall element 6017 and normally to use, spy is placed on Hall element 6017 in box body 6021, can by the extraneous impurities such as dust outside box body 6021, make the interior maintenance of box body 6021 neatly clean like this, guarantee that Hall element 6017 can normally be used.
Hall element 6017 is comprised of magnet 6022 and wiring board 6023, magnet 6022 is arranged in corresponding rotating shaft 6024, when children's pin accelerator pedal 6018, thereby by rotating shaft 6024, rotating band moving magnet 6022 circumferentially rotates, by magnet 6022 and wiring board 6023, produce Hall effect, and this signal is passed to central process unit 400, then by central process unit 400, control drive motor 500 and rotate, thereby realize the acceleration or deceleration to juvenile motor vehicle.
Between Das Gaspedal 6018 the inners and throttle bearing 6019, between brake pedal 600 the inners and brake bearing 6013, be all connected with retracing spring 6020, due to children foot and strength all less, therefore weight and the volume requirement to some extent to brake pedal 600 and Das Gaspedal 6018 self, simultaneously also in order to reduce production costs, in brake pedal 600 and Das Gaspedal 6018, offer a plurality of through holes 6010, so not only make the overall weight of brake pedal 600 and Das Gaspedal 6018 reduce, convenient for children can be stepped on brake or throttle by less power, also facilitate when releasing of brake pedal 600 and Das Gaspedal 6018 simultaneously, brake pedal 600 and Das Gaspedal 6018 can Rapid resets under 6020 effects of retracing spring separately.
In brake pump 6014, offering plunger cavity 6015 and plunger cavity 6015 communicates with brake clamp 6031 by pipeline, brake piston 6016 is installed in plunger cavity 6015, on brake pedal 600, being also connected with a push rod 6012 and push rod 6012 is connected with the brake piston 6016 in brake pump 6014, when pin touches on the brake pedal 600, push rod 6012 promotes brake piston 6016 in brake pump 6014 to the interior movement of plunger cavity 6015 when brake pedal 600 presses down, thereby make the hydraulic oil in pipeline flow to disc brake mechanism, under the effect of hydraulic coupling, thereby disc brake mechanism clamping wheel 300 makes juvenile motor vehicle stop travelling, realize brake function.
Existing brake pump 6014 is provided with spring conventionally in plunger cavity 6015, this design is mainly in order to consider after releasing of brake, brake piston 6016 can automatically reset under the effect of spring, because this brake pump 6014 is exclusively used in juvenile motor vehicle, the strength of one's legs of considering children a little less than, when pin touches on the brake, in order to make children can make disc brake mechanical operation by less power, therefore the special removal of the spring by brake pump 6014, the reset of brake piston 6016 and brake pedal 600 mainly relies on the retracing spring 6020 on brake bearing 6013 to realize, simultaneously, the internal diameter of plunger cavity 6015 is designed to 6MM, by dwindling the internal diameter of plunger cavity 6015, minimizing when pin touches on the brake pedal 600 brake piston 6016 at the interior resistance suffered when mobile of plunger cavity 6015, make children can promote brake piston 6016 in the interior movement of brake pump 6014 plunger cavity 6015 by less power, thereby make hydraulic oil energy Rapid Flow to disc brake mechanism and make its normal operation.
The quantity of disc brake mechanism has four, correspondence is arranged on four wheel 300 places of juvenile motor vehicle respectively, this disc brake mechanism comprises the brake clamp 6031 that is arranged on brake disc 6025 in the form of annular discs on wheel 300 bearings and is arranged on brake disc 6025 sides, on brake clamp 6031, offer the caulking groove 6032 with the corresponding setting of brake disc 6025, brake disc 6025 parts stretch in caulking groove 6032 and with caulking groove 6032 free-running fits, at brake disc 6025 middle parts, offer mesopore 6026, and along center of circle direction horizontal-extending, be formed with some around the center of circle and well-distributed installation base 6027 at mesopore 6026 inwalls, brake disc 6025 middle parts are provided with the reel 6037 being all connected with each installation base 6027, reel 6037 is set on wheel 300 bearings, brake disc 6025 can circumferentially rotate and can be along wheel 300 bearing axial slips around wheel 300 bearings, brake disc 6025 has on driving surface 6029 and driving surface 6029 and is evenly distributed with a plurality of arc-shaped through-holes 6030 around mesopore 6026.Brake clamp 6031 consists of the first caliper 6033 and the second caliper 6034, and be provided with the oil circuit communicating with brake pump 6014 in the second caliper 6034, caulking groove 6032 is fastened and is formed by the first caliper 6033 and the second caliper 6034, the first caliper 6033 is arranged on the side near driving surface 6029, the second caliper 6034 is arranged on the side away from driving surface 6029, and is provided with the catch piston 6036 over against brake disc 6025 in the second caliper 6034.
In the course of the work, when pin touches on the brake pedal 600, hydraulic oil in brake pump 6014 flows in the second caliper 6034 by pipeline, thereby promote catch piston 6036 in the second caliper 6034, to brake disc 6025, draw close until promote brake disc 6025 and be resisted against on the first caliper 6033, and finally make brake disc 6025 be clamped between catch piston 6036 and the first caliper 6033.In above-mentioned braking procedure, the first caliper 6033 positions are motionless, catch piston 6036 positions in the second caliper 6034 are changing, and brake disc 6025 under the promotion of catch piston 6036 along wheel 300 bearing axle to slowly going over towards the first caliper 6033 direction slippages, finally make brake disc 6025 be clamped between catch piston 6036 and the first caliper 6033, and then realize brake disc 6025 and become braking from rotation, realize the braking of juvenile motor vehicle.In other words, brake disc 6025 itself can circumferentially rotate, in braking procedure, the first caliper 6033 and second caliper 6034 of brake clamp 6031 are also motionless, but the catch piston 6036 in the second caliper 6034 can move and drive brake disc 6025, the brake disc 6025 that endwisely slips is the most at last clamped and made its braking.
The braking procedure of juvenile motor vehicle is actually the process of utilizing friction force to be heat energy by kinetic transformation, structure design in this case is conducive to brake disc 6025 heat radiations, thereby can as early as possible heat energy be discharged, and then accelerated the conversion rate of brake disc 6025, finally make juvenile motor vehicle lose kinetic energy as early as possible and realize braking, further having improved the drive safety of juvenile motor vehicle.
In this case, brake disc 6025 mechanism's unit designs are simple and braking is steadily reliable, and each parts compact in design, can be installed on juvenile motor vehicle well, simultaneously also suitablely on various vehicles, apply.In addition, in this case, each arc-shaped through-hole 6030 is uniformly distributed setting, can make like this heat distribute uniformly, has avoided the heat of brake disc 6025 to concentrate, structure design advantages of simple, perfect heat-dissipating.
Further, in catch piston 6036 embedded be provided with a plurality of friction linings 6035 and each friction lining 6035 all with brake disc 6025 free-running fits.Friction lining 6035 adopts Embedded mounting means, install in actual use, dismantle, change all more convenient, friction lining 6035 makes brake disc 6025 coordinate tightr with the braking between catch piston 6036, increased the friction force between catch piston 6036 and brake disc 6025, increased the braking force of 6036 pairs of brakings of catch piston, reasonable in design and simple in structure, improved braking effect.
Further, the shape of arc-shaped through-hole 6030 is involute shape, arc-shaped through-hole 6030 is simple in structure and easy to process, the frictional heat producing in the time of weakening brake disc 6025 driving surfaces 6029 with friction lining 6035 friction is imported into, increase thermal diffusivity simultaneously, make brake disc 6025 be difficult for producing butterfly-shaped buckling deformation.In addition, arc-shaped through-hole 6030 can also alleviate the weight of brake disc 6025 own, reduces production costs, and is conducive to fricative dust discharge between brake disc 6025 and friction lining 6035.
Further, each arc-shaped through-hole 6030 is all cut the driving surface 6029 of brake discs 6025 with 30 ° of angles.The shape of arc-shaped through-hole 6030 is involute shape and with 30 ° of angles, cuts the driving surface 6029 of brake discs 6025, structure design is simple and easy to process, rotation while utilizing brake disc 6025 braking produces air pressure and imports air-flow, increased by the flow of brake disc 6025 air, accelerating brake disc 6025 inner airs flows, the heat that while having taken away faster and more juvenile motor vehicle braking, brake disc 6025 produces, the amount of heat having produced while having guaranteed brake disc 6025 braking can be dispersed in air quickly, thereby enhancing radiating effect, strengthened the stability of brake disc 6025, avoided brake disc 6025 because of excess Temperature, to cause the problems such as temperature distortion, also greatly reduce the inordinate wear of brake disc 6025 and friction lining 6035, significantly improved the service life of brake disc 6025.
Further, on each installation base 6027, all offer mounting hole 6028, reel 6037 is arranged on brake disc 6025 by a plurality of bolts, bolt and mounting hole 6028 corresponding setting one by one.Said structure simplicity of design, makes reel 6037 Assembly &Disassembly all more convenient, makes brake disc 6025 working stabilities and fixed.
Further, brake disc in this case 6025 adopts stupaliths to make, it can bear 1400 ℃ high temperature and indeformable, do not produce crack, do not shake.Ceramic Disc Brakes 6025 than the weight reducing of common cast iron brake disk 6,025 50% left and right; The friction coefficient of Ceramic Disc Brakes 6025, than high 25% left and right of cast iron brake disk 6025, has improved brake efficiency; The superficial hardness of Ceramic Disc Brakes 6025 is high, so its wearing and tearing when braking are less, and service life is longer, is four times of steel brake disc 6025 mean life.
In addition, the brake disc 6025 that stupalith is made is difficult for isolating and changes conveniently, uses phenomenons such as there will not be oxide etch for a long time, has also extended the service life of disc brake mechanism.
Suspension system comprises vibration damper assembly 7030, support 7037 and swing arm 700 and be hinged on the tumbler 7022 of swing arm 700 ends, support 7037 is installed on the vertical direction on chassis 200, vibration damper assembly 7030, swing arm 700 and tumbler 7022 are symmetrically distributed in the both sides of support 7037, one end of swing arm 700 is hinged on the side on chassis 200, the other end is hinged with tumbler 7022, one end of vibration damper assembly 7030 is hinged on support 7037, the other end is hinged in swing arm 700 one end away from chassis 200, on tumbler 7022, offer the first mounting hole 7023, in the first mounting hole 7023, turning cylinder 7051 is installed, one end of turning cylinder 7051 is connected to wheel 300, the other end is connected to axle drive shaft 7043, axle drive shaft 7043 can transmitting torque power arrive turning cylinder 7051, during the stressed rotation of tumbler 7022, tumbler 7022 can rotate around the hinge-point of tumbler 7022 with turning cylinder 7051 and turning cylinder 7051 can be accepted the torsional forces that axle drive shaft 7043 transmits.
Support 7037, swing arm 700 and vibration damper assembly 7030 threes form a triangle, its medium-height trestle 7037 and swing arm 700 are fixed edge, vibration damper assembly 7030 is for can change limit, when swing arm 700 around chassis 200 whens rotation, bumper 7033 shrinks, and can make the whole buffer action that produces, by the damping shock absorption of vibration damper assembly 7030, progressively reduce the impact producing when juvenile motor vehicle is used, make to operate steadily.
The riser 7038 that support 7037 is oppositely arranged and is connected in by two on chassis 200 forms, two 7038 of risers employing conduits 7036 connect into an integral body, between two risers 7038, also by conduit 7036, formed an installing space, riser 7038 comprises rib 7039 and sleeveless jacket portion 7041, two legs 7042 are extended to downside in the lower end of rib 7039, two legs 7042 distribute and are positioned at the same side of rib 7039 from the Central Symmetry of riser 7038, the platform that the end of leg 7042 is provided with bending can be affixed on chassis 200, sleeveless jacket portion 7041 is positioned at the upper end of rib 7039 and to both sides, extends out respectively, the second mounting hole 7040 of offering on riser 7038 is opened in sleeveless jacket portion 7041.
Swing arm 700 comprises articulated section 7013, support portion 7018 and location division 7017, support portion 7018 is flats, support portion 7018 forms by rake 7019 with the crossing horizontal part 7020 of rake 7019, wherein horizontal part 7020 is set to wedge angle, the end of wedge angle is provided with rounding, articulated section 7013 is arranged on 7018 rake 7019 one end, support portion, on articulated section 7013, offer hinge hole 7010, on articulated section 7013, be provided with grooving 7012, grooving 7012 is the midway location with articulated section 7013, the length of grooving 7012 is not less than 1/3rd of articulated section 7013 total lengths, the both sides on chassis 200 are provided with projection 7054, between projection 7054, form a groove 7053, articulated section 7013 can be inserted in groove 7053, straight pin is hinged to swing arm 700 on chassis 200 through hinge hole 7010, location division 7017 is arranged on away from one end of articulated section 7013 and is vertically set on horizontal part 7020, the centre of location division 7017 arranges knock hole 7014, axle drive shaft 7043 is connected on turning cylinder 7051 through knock hole 7014, adapter plate 7016 is arranged on location division 7017 and is parallel with support portion 7018, on adapter plate 7016, be provided with two and be oppositely arranged dull and stereotyped 7015, dull and stereotyped 7015 vertical and adapter plates 7016, between two flat boards 7015, form groove 7053 spaces, on two flat boards 7015, offer the through hole of concentric, wedge angle one end of support portion 7018 and adapter plate 7016 offer the first rotation hole 7021 of concentric, tumbler 7022 is hinged on the first rotation hole 7021 by anti-wearing liner 7026, anti-wearing liner 7026 is a straight pin, in the centre of straight pin, be provided with a step surface, when tumbler 7022 is connected with support portion 7018 with adapter plate 7016 or tumbler 7022, straight pin is through the first rotation hole 7021, tumbler 7022 or support portion 7018 are pressed on step surface.Wedge angle is arranged in end in swing arm 700, has reduced contact surface, has guaranteed that again the steering angle of tumbler 7022 is enough large.
Vibration damper assembly 7030 comprises bumper 7033, is connected in the end cap 7031 at bumper 7033 two ends and is set in the Compress Spring 7032 on bumper 7033, the two ends of Compress Spring 7032 lean respectively on the end cap 7031 at bumper 7033 two ends, on end cap 7031, be also provided with mounting blocks 7035, sleeve 7034 is connected on mounting blocks 7035, by sleeve 7034, one end of vibration damper assembly 7030 can be hinged to the second mounting hole 7040 on support 7037, the other end is hinged on tumbler 7022.
Axle drive shaft 7043 comprises the first transmission shaft 7052, second driving shaft 7045 and the 3rd transmission shaft 7044, one end of the first transmission shaft 7052 is connected to propulsion source, the other end is fixed with pipe 7046, on pipe 7046, offer chute 7049, one end of second driving shaft 7045 is arranged to spherical, and run through the centre of sphere and be provided with a trundle 7048, trundle 7048 can be slidably installed in chute 7049 and transmit power, the other end of second driving shaft 7045 is connected by universal-joint 7050 with one end of the 3rd transmission shaft 7044, the other end of the 3rd transmission shaft 7044 is connected to turning cylinder 7051, the 3rd transmission shaft 7044 axially offer the 3rd mounting hole 6028, turning cylinder 7051 is punctured in the 3rd mounting hole 6028, radially running through of the 3rd transmission shaft 7044 and turning cylinder 7051 is provided with locating dowel pin 7047 holes, and locating dowel pin is provided with locating dowel pin 7047 in 7047 holes.Integral structure presents " Z " font, by universal-joint 7050 transmissions, the torsional forces that makes propulsion source transmit is out constant, swing arm 700 swings can make total distance of transmission shaft elongate or shorten, trundle 7048 can be slidably installed in that chute 7049 is interior can actv. consume the distance that this part changes, and does not affect again the efficiency of transmission.
Tumbler 7022 comprises 7037 7024, support, two relatively and be set in parallel in the connecting portion 7025 on 7037 7024, support, the free end of connecting portion 7025 is also set to wedge angle and end arranges rounding, the spacing of two connecting portions 7025 is suitable with the distance of adapter plate 7016 with swing arm 700 upper support portions 7018, tumbler 7022 can be detained and be set in swing arm 700, the closed angle end of connecting portion 7025 is provided with the second rotation hole 7029, the first rotation hole 7021 is connected by anti-wearing liner 7026 with the second rotation hole 7029 and tumbler 7022 can rotate around anti-wearing liner 7026, the first mounting hole 7023 is arranged on 7037 7024, support, in the first mounting hole 7023, turning cylinder 7051 is installed, turning cylinder 7051 runs through tumbler 7022 and extends to two ends, on a side connecting portion 7025 of tumbler 7022, be also provided with pull bar 7027, on pull bar 7027, crossover port 7028, crossover port 7028 can connect deflecting bar, pull bar 7027 can drive tumbler 7022 to rotate around anti-wearing liner 7026 under external force.
Under initial condition, chassis 200 horizontal positioned, leg 7042 on support 7037 is connected on chassis 200, and remain on vertical state with chassis 200, by sleeve 7034, regulate the gap between two stands 7037, on chassis, the groove 7053 of 200 both sides is installed respectively swing arm 700, the sleeve of one end of vibration damper assembly 7030 7034 is hinged on the second mounting hole 7040 of support 7037, the sleeve 7034 of the other end is hinged on the through hole of two flat boards 7015 in swing arm 700, wedge angle one end button of tumbler 7022 is set to the closed angle end of swing arm 700, and at the first rotation hole 7021 and install anti-wearing liner 7026, turning cylinder 7051 is installed on tumbler 7022, the side extending out can installing wheel 300, the other end is connected to axle drive shaft 7043, on tumbler 7022, install deflecting bar.
After installing, turning cylinder 7051 receives the torsion that axle drive shaft 7043 transmits, and turning cylinder 7051 rotates, and deflecting bar is to 7022 power of tumbler, and tumbler 7022 rotates around anti-wearing liner 7026, and juvenile motor vehicle is realized and being turned to; When running into rugged bottom surface, swing arm 700 can be rotated by the hinge-point on chassis 200, and vibration damper assembly 7030, by compressing or stretching, guarantees the stable of suspension simultaneously, reduce the impact of vibrations on juvenile motor vehicle, can be more steady when juvenile motor vehicle is at play.
Claims (10)
1. a juvenile motor vehicle, comprise vehicle frame, be arranged on the chassis of bottom of frame and be arranged on four wheels on vehicle frame, it is characterized in that, in vehicle frame, be provided with central process unit, braking accelerator device, two drive transmission devices and draft hitch, described draft hitch is arranged on chassis, described two drive transmission devices comprise drive motor and diff, described drive motor is connected with diff by input shaft and is connected with central process unit by electric wire, the first semiaxis that is symmetrically arranged with coaxial setting on diff is connected with wheel by transmission shaft respectively with the second semiaxis with the second semiaxis and described the first semiaxis, braking accelerator device comprises brake pedal assembly, accelerator pedal module, brake pump and the disc brake mechanism that is arranged on Wheel bearing and communicates with brake pump, wherein brake pedal assembly comprises brake pedal and is arranged on the brake bearing on vehicle frame, brake pedal is connected with brake pump and brake pedal is articulated and connected on brake bearing by rotating shaft, accelerator pedal module comprises Das Gaspedal and is arranged on the throttle bearing on vehicle frame, Das Gaspedal is articulated and connected on throttle bearing by rotating shaft, brake bearing with on throttle bearing, Hall element is all installed and Hall element is connected with central process unit by electric wire.
2. juvenile motor vehicle according to claim 1, it is characterized in that, described diff comprises body skin and is arranged on the inner housing in body skin, described inner housing has driven gear, on diff, be also provided with can be by inner housing locked and make the differential locking-device of the first semiaxis and the synchronized rotation of the second semiaxis simultaneously, described input shaft stretches in body skin and is connected with a joggle by main gear and driven gear, in described inner housing, be provided with and the first semiaxis, the second semiaxis is corresponding the first adapter shaft arranging respectively, the second adapter shaft, described the first adapter shaft, on the second adapter shaft, be respectively equipped with the first side gear, the second side gear, in described inner housing, by planet axis, at least one pair of planetary wheel is installed, each planetary wheel is all connected with a joggle between the first side gear and the second side gear and rotates relative to inner housing.
3. juvenile motor vehicle according to claim 2, it is characterized in that, described differential locking-device comprises control stalk, return unit and by grafting piece and the movable part that the locked lock dog of inner housing can be formed, lock dog has annular groove and is movably arranged on the first adapter shaft, control stalk is articulated and connected on grafting piece and return unit fixes between control stalk and grafting piece, on grafting piece, be provided with at least two inserting columns that can stretch in annular groove, and when control stalk compression return unit, return unit can drive grafting piece to move and make lock dog depart from inner housing.
4. according to the juvenile motor vehicle described in claim 1 or 2 or 3, it is characterized in that, described suspension system comprises vibration damper assembly, support, axle drive shaft and swing arm, described vibration damper assembly and swing arm are symmetrically distributed in the both sides of support, described support is connected on chassis, one end of described swing arm is hinged on chassis one side, the other end is hinged with tumbler, one end of described vibration damper assembly is hinged on support, the other end is hinged in swing arm the one end away from chassis, on described tumbler, offer the first mounting hole, in described the first mounting hole, turning cylinder is installed, one end of described turning cylinder is connected to wheel, the other end is connected to axle drive shaft, described axle drive shaft can transmitting torque power arrive turning cylinder, described in when the stressed rotation of tumbler, tumbler and turning cylinder can rotate around the hinge-point of tumbler, described vibration damper assembly comprises bumper, be connected in the end cap at bumper two ends and be set in the Compress Spring on bumper, the two ends of described Compress Spring lean respectively on the end cap at bumper two ends.
5. juvenile motor vehicle according to claim 4, it is characterized in that, the riser that described support is oppositely arranged and is connected on chassis by two forms, on described riser, offer the second mounting hole, the two ends of described vibration damper assembly are provided with sleeve, on described end cap, be provided with mounting blocks, described sleeve is connected on mounting blocks, one side on described chassis is provided with two projections, between described projection, form a groove, one end of described swing arm is inserted in groove and is hinged in projection, the other end of described swing arm is provided with adapter plate, on described adapter plate, be provided with two and be oppositely arranged flat board, the sleeve of the described vibration damper assembly other end is hinged on two flat boards, described swing arm is rotated and can be driven vibration damper assembly compression or stretch out.
6. juvenile motor vehicle according to claim 5, it is characterized in that, described swing arm comprises articulated section, support portion and location division, described support portion is flats, support portion forms by rake with the crossing horizontal part of rake, described horizontal part is set to wedge angle, described articulated section is arranged on the other end of support portion, on described articulated section, offer hinge hole, described hinge hole is hinged on chassis by straight pin, described location division is vertically set on horizontal part, on described location division, be provided with knock hole, described axle drive shaft is connected on turning cylinder through knock hole, the adapter plate arranging on location division is parallel with support portion, on the closed angle end of described support portion and adapter plate, offer the first rotation hole of concentric, described tumbler is hinged on the first rotation hole.
7. juvenile motor vehicle according to claim 6, it is characterized in that, described axle drive shaft comprises the first transmission shaft, second driving shaft and the 3rd transmission shaft, one end of described the first transmission shaft is connected to propulsion source, the other end is fixed with pipe, on described pipe, offer chute, one end of described second driving shaft is arranged to spherical, and run through the centre of sphere and be provided with a trundle, described trundle can be slidably installed in chute and transmit torsion, the other end of described second driving shaft is connected by universal-joint with one end of the 3rd transmission shaft, the other end of described the 3rd transmission shaft is connected to turning cylinder.
8. according to the juvenile motor vehicle described in claim 1 or 2 or 3, it is characterized in that, described disc brake mechanism comprises the brake clamp that is arranged on brake disc in the form of annular discs on Wheel bearing and is arranged on brake disc side, on brake clamp, offer the caulking groove of setting corresponding to brake disc, brake disc partly stretch in caulking groove and with caulking groove free-running fit, at brake disc middle part, offer mesopore, and along center of circle direction horizontal-extending, be formed with some around the center of circle and well-distributed installation base at mesopore inwall, described brake disc middle part is provided with the reel being all connected with each installation base, described reel is set on Wheel bearing, described brake disc can circumferentially rotate and can be along Wheel bearing axial slip around Wheel bearing, described brake disc has on driving surface and driving surface and is evenly distributed with some arc-shaped through-holes around mesopore.
9. juvenile motor vehicle according to claim 8, it is characterized in that, described brake clamp consists of the first caliper and the second caliper, and in the second caliper, be provided with the oil circuit communicating with brake pump, described caulking groove is fastened and is formed by the first caliper and the second caliper, described the first caliper is arranged on the side near driving surface, described the second caliper is arranged on the side away from driving surface, and in the second caliper, be provided with the catch piston over against brake disc, on catch piston and the first caliper embedded be provided with some friction linings and each friction lining all with brake disc free-running fit.
10. juvenile motor vehicle according to claim 9, it is characterized in that, in brake pump, offer plunger cavity and described plunger cavity communicates with brake clamp by pipeline, brake piston is installed in plunger cavity, on brake pedal, be connected with a push rod and brake piston outer end is connected with push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171579.8A CN104002665B (en) | 2014-04-25 | 2014-04-25 | A kind of juvenile automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410171579.8A CN104002665B (en) | 2014-04-25 | 2014-04-25 | A kind of juvenile automobile |
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| CN104002665A true CN104002665A (en) | 2014-08-27 |
| CN104002665B CN104002665B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410171579.8A Expired - Fee Related CN104002665B (en) | 2014-04-25 | 2014-04-25 | A kind of juvenile automobile |
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Cited By (1)
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| CN104002665B (en) | 2017-01-04 |
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