CN2082243U - Electrical carry-vechicle - Google Patents

Abstract

The utility model relates to an electrical carry-vehicle, in particular to an electrical carry-vehicle whose wheels are driven by a motor through a speed reduction device. The utility model comprises a vehicle body, an electricity cylinder, a motor, a turning mechanism, a running mechanism, and a driving device. The utility model is characterized in that the motor drives the wheels through a transmission bearing which is used as a speed reducer. The transmission device of the electrical carry-vehicle and the electrical carry-vehicle have the advantages of compact structure, short transmission chain, high transmission efficiency, small volume, etc.

Description

Electrical carry-vechicle

The utility model relates to a kind of vehicle of short distance carrying material, particularly by the electrocar of motor by the speed reduction gearing drive wheels.

" structure of electrocar and maintenance " book that China Machine Press published in November, 1988 discloses several class electrocars.They comprise at least: car body, storage battery, motor, steering hardware, traveling gear and actuating device, the DC machine that with the storage battery is electric energy is by doing the retarder drive wheels running of driving device, and also having of having ordered about the hand-hydraulic that car body hoists or fall to falling and lifted ejection device.Its weak point is: owing to be gear reducer, and make every kind of transport trolley all must have the reduction case of a larger volume, its not only transmission chain length, driving efficiency is lower, and has increased the deadweight of vehicle.

For this reason, the purpose of this utility model is to provide a kind of improved electrocar, and it can shorten messenger chain, the raising driving efficiency of actuating device, and reduces its volume and weight.

The technical solution that realizes above-mentioned purpose is: a kind of electrocar, comprise car body, storage battery, motor, steering hardware, traveling gear and actuating device at least, and its distinctive feature is: motor is by making the drive bearing drive wheels of retarder.

And motor shaft is connected with the eccentric stiffener of drive bearing, and the internally toothed annulus of drive bearing is fixed, and its transmission circle is connected with wheel or axletree.

And, lean on steering hardware one end at car body, an articulated manned pedal of standing and handling, pedal has the universal caster wheel that lands.

And, being connected with the drive wheel same cramp bar of flower wheel wheel carrier side by side, an end of cramp bar is hinged with car body bottom bonded assembly support with one again, and the other end is pressed on the hanger bracket of car body bottom by elastic part.

Perhaps, motor shaft is connected with the eccentric stiffener of drive bearing, and the transmission circle of drive bearing is fixed, and its internally toothed annulus is connected with wheel.

And, have and order about the hand-hydraulic act ejection device that car body hoists or fall to falling.

Compared to existing technology, because the described retarder of above-mentioned formation is a drive bearing (is Chinese patent application number: 85200923.2 and 87206687.8 described drive bearings), and motor shaft is connected with the eccentric stiffener of drive bearing, wheel or axletree directly are connected with its transmission circle or internally toothed annulus, make motor shaft and wheel or axletree be in the same plane diametrically, be the bearing that shared space of retarder and weight only are equivalent to similar specification, thereby reduced the volume and weight of retarder significantly.Again because the single staged transmission ratio scope of drive bearing big (6～60), efficient height, compact conformation, thereby shorten messenger chain, improved driving efficiency.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a kind of appearance integral constructional drawing of the present utility model.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is the constructional drawing of such scheme actuating device.

Fig. 4 is the suspended structure figure of flower wheel.

Fig. 5 is the appearance integral constructional drawing of another embodiment.

Fig. 6 is the driving device structure figure of scheme shown in Figure 4.

Fig. 7 is that the hydraulic pressure of scheme shown in Figure 4 is lifted the ejection device scheme drawing.

With reference to Fig. 1, Fig. 2, storage battery and speed control unit ［ 6 ］ are arranged on the top of car body ［ 1 ］, steering hardware ［ 5 ］ is positioned at an end of car body ［ 1 ］, at this end, can hinged manned standing handle the pedal ［ 4 ］ of steering hardware ［ 5 ］ and speed control unit ［ 6 ］, the universal caster wheel ［ 3 ］ that lands is housed under the pedal ［ 4 ］, and the wheel of car body ［ 1 ］ other end is drive wheel ［ 2 ］.When diff, motor is by making the drive bearing of retarder, diff drives two wheel runnings of this end, simultaneously also can be as shown in Figure 2, do not want diff, it is motor ［ 9 ］ drives this end one side by drive bearing ［ 8 ］ wheel, its structure can be referring to Fig. 2, Fig. 3, actuating device ［ 7 ］ is connected through the bottom of support ［ 10 ］ with car body ［ 1 ］, motor shaft ［ 18 ］ is connected with the eccentric stiffener ［ 16 ］ of drive bearing ［ 8 ］ with key ［ 17 ］ or spline, internally toothed annulus ［ 21 ］ is by key ［ 22 ］ or be bolted on the housing ［ 23 ］, transmission circle ［ 20 ］ then is connected with the connecting arm ［ 11 ］ of axletree ［ 12 ］ end, its concrete mode can be pin ［ 19 ］ or bolted connection, axletree ［ 12 ］ is supported by the bearing ［ 15 ］ that is provided with in the housing ［ 23 ］, its other end is connected with drive wheel ［ 2 ］ with bolt ［ 14 ］ by key ［ 13 ］, like this, just, constitute the actuating device ［ 7 ］ (principle of work of drive bearing can referring to its patent specification) of drive wheels running.In fact, the transmission circle ［ 20 ］ of drive bearing ［ 8 ］ can also directly be connected with drive wheel ［ 2 ］, and axletree only plays supporting body ［ 1 ］, that is does not transmit the torque of motor ［ 9 ］ to wheel.

Traveling gear comprises that wheel and resilient suspension are (as steel spring, concrete structure can be referring to the 123rd～129 page of above-mentioned documents), each wheel is connected with car body ［ 1 ］ by suspension, considers that electrocar usually in more smooth travels down, can not want resilient suspension yet.But, for fear of drive wheel ［ 2 ］ when running into pit, unsettled idle running, help simultaneously simplified structure again, so preferably as shown in Figure 4, that is: be connected with drive wheel ［ 2 ］ the same cramp bar of flower wheel ［ 26 ］ wheel carrier ［ 27 ］ ［ 28 ］ side by side, an end of cramp bar ［ 28 ］ is hinged with a same car body ［ 1 ］ bottom bonded assembly support ［ 29 ］ again, and the other end is pressed on the hanger bracket ［ 25 ］ of car body ［ 1 ］ bottom by elastic part ［ 24 ］ (as spring).When travelling, if drive wheel ［ 2 ］ runs into pit, then the weight of this side body ［ 1 ］ and material is by from drive wheel ［ 26 ］ carrying, thereby makes this side body ［ 1 ］ descend and compression spring, so drive wheel ［ 2 ］ just can land and be unlikely idle running.

Fig. 5～7 have provided another embodiment of the present utility model.This scheme has 3 wheels, and they are: 1 driving (double turning to) wheel ［ 35 ］, 2 flower wheels ［ 33 ］.Drive bearing ［ 51 ］ is located in the drive wheel ［ 35 ］, and motor ［ 52 ］ is contained in a side of drive wheel ［ 35 ］ wheel carrier ［ 36 ］, also its part can be located in the wheel carrier ［ 36 ］.Motor shaft ［ 53 ］ is connected with the eccentric stiffener ［ 49 ］ of drive bearing ［ 51 ］ with key ［ 48 ］ or spline, transmission circle ［ 46 ］ is connected with the lining ［ 50 ］ of both sides by pin ［ 56 ］ or bolt, lining ［ 50 ］ uses key ［ 47 ］ to be connected with the lining ［ 44 ］ that another same wheel carrier ［ 36 ］ is fixed together again, just by lining ［ 50 ］, key ［ 47 ］ and another lining ［ 44 ］ transmission circle ［ 46 ］ is fixed on the wheel carrier ［ 36 ］.Internally toothed annulus ［ 43 ］ is connected with wheel hub ［ 42 ］ with key ［ 57 ］, so that the torque of motor shaft ［ 53 ］ input is passed to drive wheel ［ 35 ］ by internally toothed annulus ［ 43 ］.The bearing ［ 45 ］ of support cage ［ 42 ］ is equipped with in outer ring in both sides lining ［ 44 ］, can also be separated by with lasso ［ 54 ］ between the two, and with holding screw ［ 55 ］ lasso ［ 54 ］ is fixed in the wheel hub ［ 42 ］.

Hand-hydraulic is lifted ejection device by the application of force (hold concurrently wheel to) bar ［ 30 ］, pump cylinder ［ 37 ］, working piston cylinder ［ 31 ］, check valve ［ 61,63 ］ and fuel-return valve ［ 62 ］ formation, and its principle of work is as the common manual hydraulic jack.Concrete scheme and working process are: the cylinder sleeve ［ 60 ］ of an end of force application rod ［ 30 ］ and working piston cylinder ［ 31 ］ is hinged, its fulcrum ［ 40 ］ acts on the pump core ［ 38 ］ of pump cylinder ［ 37 ］ with the rolling body ［ 41 ］ that reduces friction, pressure spring ［ 39 ］ be sleeved on pump cylinder ［ 37 ］ outer and head on force application rod ［ 30 ］ fulcrum ［ 40 ］ near.Make force application rod ［ 30 ］ often remain on vertical position.One and wheel carrier ［ 36 ］ bonded assembly steering shaft ［ 58 ］ are arranged at the bottom of cylinder sleeve ［ 60 ］, and like this, the force application rod that swings ［ 30 ］ just can drive drive wheel ［ 35 ］ by cylinder sleeve ［ 60 ］ and turn to; Swing up and down force application rod ［ 30 ］, pump cylinder ［ 37 ］ is just by check valve ［ 63 ］ oil suction when up (), and through another check valve ［ 61 ］ towards working piston cylinder ［ 31 ］ oiling when descending (), lift an end of jack-up car body ［ 32 ］ at the effect lower piston ［ 59 ］ of oil pressure, simultaneously, the connecting rod ［ 34 ］ of the car body ［ 32 ］ that rises bottom it pushing away flower wheel ［ 33 ］ and erecting around hinge-point, part when being about to piston ［ 59 ］ rising is lifted the other end that top power is assigned to car body ［ 32 ］, rises with the translation that guarantees car body ［ 32 ］.When needs car body ［ 32 ］ falls to falling, can open fuel-return valve ［ 62 ］ (its switch can be manual or foot-operated) makes the hydraulic oil in the working piston cylinder ［ 31 ］ get back to oil storage chamber ［ 64 ］ through it, car body ［ 32 ］ is just under the effect of the deadweight weight of material (or add), fall to dropping to the initial position, also haul flower wheel ［ 33 ］ simultaneously and keep down around hinge-point by connecting rod ［ 34 ］.

The described transport trolley of present embodiment, generally be used in the storehouse or storehouse between material handling because car body can lifting, it is more convenient therefore to load and unload material.During work, the operator can take advantage of onboard, also can hold the force application rod Following Car and walk together.

Claims (6)

1, a kind of electrocar comprises car body [1], storage battery, motor [9], steering hardware [5], traveling gear and actuating device at least, it is characterized in that: drive bearing [8] drive wheels of motor [9] by making retarder.

2, electrocar according to claim 1, it is characterized in that: motor shaft ［ 18 ］ is connected with the eccentric stiffener ［ 16 ］ of drive bearing ［ 8 ］, the internally toothed annulus ［ 21 ］ of drive bearing ［ 8 ］ is fixing, and its transmission circle ［ 20 ］ is connected with drive wheel ［ 2 ］ or its axletree ［ 12 ］.

3, electrocar according to claim 2 is characterized in that: lean on steering hardware ［ 5 ］ one ends at car body ［ 1 ］, and an articulated manned pedal ［ 4 ］ of standing and handling, pedal ［ 4 ］ has the universal caster wheel ［ 3 ］ that lands.

4, according to claim 2 or 3 described electrocars, it is characterized in that: be connected with drive wheel ［ 2 ］ the same cramp bar of flower wheel ［ 26 ］ wheel carrier ［ 27 ］ ［ 28 ］ side by side, one end of cramp bar ［ 28 ］ is hinged with a same car body ［ 1 ］ bottom bonded assembly support ［ 29 ］ again, and the other end is pressed on part hanger bracket ［ 25 ］ of car body ［ 1 ］ bottom by elastic part ［ 24 ］.

5, electrocar according to claim 1, it is characterized in that: motor shaft ［ 53 ］ is connected with the eccentric stiffener ［ 49 ］ of drive bearing ［ 51 ］, the transmission circle ［ 46 ］ of drive bearing ［ 51 ］ is fixing, and its internally toothed annulus ［ 43 ］ is connected with drive wheel ［ 35 ］.

6, electrocar according to claim 5 is characterized in that: have and order about the hand-hydraulic act ejection device that car body ［ 1 ］ hoists or falls to falling.

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