CN201158309Y - Drive system of beach vehicle - Google Patents

Abstract

The utility model relates to a driving system of a beach buggy. The front end of the output shaft of an engine is connected with an input main shaft of a front driving box through a front transmission shaft, a bevel gear is arranged on the output main shaft of the front driving box, the bevel gear is meshed with an spiral bevel gear on the input shaft of a differential, and the two output shaft sleeves of the differential are respectively connected with two front axle half shafts; external splines with identical shape and size are respectively arranged on the input main shaft and the output main shaft of the front driving box, a spline sliding sleeve is sleeved on the external spline of the output main shaft, an annular groove is arranged on the outer surface of the spline sliding sleeve, the fork part of a shifting fork is clipped into the annular groove, the handle part of the shifting fork is fixed with a sliding rack, and the sliding rack is movably sleeved on a guide pin, and is meshed with the output gear of a driving converter. The driving system can ensure that the beach buggy adopts two-wheel drive or four-wheel drive according to the actual situation, the switching between the two-wheel drive and the four-wheel drive is convenient, the operation is simple, thereby the power and the passing ability of the beach buggy are greatly improved.

Description

The beach buggy drive system

Technical field

The utility model relates to a kind of beach buggy, relates in particular to the beach buggy drive system.

Background technology

At present, beach buggy on the market all is to drive front-wheel motion (front-wheel does not have direct power) in the majority with back-wheel drive.Two front-wheels of beach buggy are installed on the vehicle frame by suspension fork mechanism, and two trailing wheels are sleeved on separately the rear axle shaft.The power of beach buggy is provided by driving engine, the rear end of engine output shaft is connected with the front end of universal-joint splined shaft with the first universal-joint spline housing by adapter shaft, the rear end of universal-joint splined shaft is connected with the input shaft of rear drive case by the second universal-joint spline housing, two output sleeves of rear drive case are connected with two rear axle shafts respectively, the power of driving engine is successively by the first universal-joint spline housing, universal-joint splined shaft, the second universal-joint spline housing, rear drive case and rear axle shaft like this, the rotation of driving trailing wheel, the beach buggy car load travels forward or backward.Because beach buggy has only trailing wheel that propulsive effort is arranged, dynamic property is not strong, and crossing ability is relatively poor, when beach buggy is being climbed the very oblique operation that is difficult to when sloping; When beach buggy travelled in muddy or frost boiling highway section, wheel was got down hopeless in a quagmire easily or is difficult to advance because of skidding, and then problems such as flame-out occur.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of beach buggy drive system, so that beach buggy is selected two-wheel drive or four wheel drive as required, thus the dynamic property and the crossing ability of raising beach buggy.

The technical solution of the utility model is as follows: a kind of beach buggy drive system, comprise driving engine, its key is: the front end of described engine output shaft passes from the front end face of motor body, and the end joint connection by spline housing and front propeller shaft, the front end of this front propeller shaft is connected with the input main spindle multiple spline of before driving case, the output main shaft of described before driving case is provided with finishing bevel gear cuter, the input screw bevel gear engagement of this finishing bevel gear cuter and diff, two output sleeves of described diff are connected with two propons semiaxis respectively, and two propons semiaxis are arranged symmetrically in the both sides of diff; The input main shaft of described before driving case is provided with shape and the identical male splines of size with the output main shaft, and output main shaft male splines on the suit spline sleeve, the outside face of this spline sleeve has circular groove, the fork of shift fork snaps in this circular groove, the shank and the sliding rack of shift fork fix, described sliding rack is arranged in the resigning hole on the before driving tank shell, and kink is on guide finger, and sliding rack is meshed with the output gear that drives conv.

It is mechanism that the utility model changes the mounting structure of beach buggy front-wheel into bridge by traditional suspension fork mechanism, so that accept the power of driving engine.At the propons bridge is to set up before driving case and front propeller shaft between mechanism and the driving engine, the input main shaft of before driving case is provided with shape and the identical male splines of size with the output main shaft, spline sleeve on the output main shaft male splines is by fork controls, the sliding rack of captiveing joint with shift fork is under the drive that drives the conv output gear, can slippage on guide finger, drive shift fork simultaneously and spline sleeve moves together.Because driving the output gear of conv can rotate by positive and negative both direction, sliding rack can forward and backward slippage on guide finger like this, sliding rack drives the forward and backward motion of spline sleeve, the before driving case is exported between main shaft and the input main shaft separated or joint, beach buggy can select have only the drive form of trailing wheel participation or the drive form that front and back wheel participates in simultaneously according to road conditions like this.

During engine operation, the rear end of engine output shaft drives two rear axle shafts rotations by the back transmission device, rotates thereby drive trailing wheel in the utility model; The front end of engine output shaft drives the front propeller shaft rotation, front propeller shaft drives the before driving case input main shaft that is attached thereto again and rotates synchronously, when current driving box input main shaft is in released state with the output main shaft, the idle running of before driving case input main shaft, the output main shaft does not rotate, this moment, beach buggy adopted two back-wheel drives, was suitable in condition of road surface travels down preferably.When current driving box input main shaft is in engagement state with the output main shaft, the input main shaft drives the output main axis rotation by spline sleeve, the output main shaft drives two propons semiaxis rotations by diff again, thereby driving front-wheel rotates, this moment, the front and back wheel of beach buggy all had propulsive effort, strengthened the dynamic property of beach buggy so greatly, effectively improved the crossing ability of beach buggy, made that beach buggy reaches mire more greatly in the gradient, frost boiling all can be travelled on the highway section smoothly.

Front end at above-mentioned front propeller shaft is provided with the cydariform male splines, and this cydariform male splines stretches in the internal splined hole at before driving case input main shaft rear portion, and both splines connect.Front propeller shaft adopts the cydariform male splines to be connected with the female splines of before driving case input main shaft, reduced cooperation difficulty between the two, when even trickle change takes place owing to reasons such as welding deformations in the installation site of front propeller shaft and before driving case, also can be seated, thereby greatly reduce assembly difficulty and working strength of workers, effectively improved efficiency of assembling.Simultaneously, because importing with the before driving case, front propeller shaft adopt the cydariform male splines to cooperate between the main shaft with straight-tooth shape female splines, front propeller shaft can be done tubaeform rotation around the center of cydariform male splines in the process of transmission like this, and then prevented that effectively the female splines that centrifugal when rotation and before driving case are imported main shaft from bumping, eliminate abnormal sound, and ensured the reliability of transmission performance.

Be provided with spring in the internal splined hole of above-mentioned before driving case input main shaft, the rear end of this spring is stretched in the end face groove of front propeller shaft.Spring works to eliminate endplay between front propeller shaft and the before driving case input main shaft, with the reliability of further guarantee transmission.

Front end at above-mentioned before driving case input main shaft is provided with guidepost, and this guidepost stretches in the corresponding aperture of output main shaft, both free-running fits.Guidepost plays guiding, and it is easier that before driving case input main shaft is engaged with the output main shaft.

The housing of above-mentioned driving conv is formed by box body and lid butt joint, in the inner chamber of described converter shell, motor is installed, this motor is connected by the outer change-over swith of lead and converter shell, and one-level output worm screw is installed on the output shaft of motor, the driven worm gear engagement of this one-level output worm screw and one-level, suit secondary driving gear on the axle of the driven worm gear of one-level, secondary driving gear and the engagement of secondary driven gear, described secondary driven gear is sleeved on an end of secondary driven gear shaft, the other end of this secondary driven gear shaft stretches out outside the lid, and sponson suit output gear.

It is small and exquisite to drive the conv volume, can be installed on the before driving case.The running that drives the conv motor is operated very easy by the push button control of pushing change-over swith.Change-over swith can always change the magnetic direction of motor internal by the both positive and negative polarity that changes the motor received current, makes motor output shaft generation forward rotation or counter-rotating.When motor rotation, motor output shaft drives the rotation of one-level output worm screw, one-level output worm screw drives the driven worm gear of one-level and coaxial with it secondary driving gear rotates, and the secondary driving gear drives the rotation of secondary driven gear again, makes with the coaxial output gear of secondary driven gear to rotate.Under the drive of motor output shaft, drive the conv output gear can positive and negative two to rotation, output gear drives sliding rack and the forward and backward motion of shift fork, make spline sleeve slippage on before driving case output main shaft and input main shaft, so that beach buggy is selected two-wheel drive form or four wheel drive form according to road conditions.

On the card of box body, brush is housed at above-mentioned secondary driven gear, this brush has three legs that are parallel to each other, three spacing copper sheets of outage that match with the brush leg are fixed in the box body, three spacing copper sheets of outage are circular arc, their center of circle is on same point, wherein the spacing copper sheet of second outage is between the first spacing copper sheet of outage and the spacing copper sheet of the 3rd outage, the arc length maximum of the spacing copper sheet of first outage, the arc length minimum of the spacing copper sheet of the 3rd outage, one end of the spacing copper sheet of described first outage aligns with the respective end of the spacing copper sheet of second outage, and the other end of the spacing copper sheet of first outage does not exceed the respective end of the spacing copper sheet of the 3rd outage; The spacing copper sheet of described first outage is connected with an electrode plug of motor by first conducting strip, another electrode plug of motor is connected with change-over swith by the 4th conducting strip and lead, and described second, third spacing copper sheet that cuts off the power supply also is connected with change-over swith by second conducting strip, the 3rd conducting strip and corresponding lead respectively.

Change-over swith is the general-duty push switch, when pressing the button of change-over swith, the 4th conducting strip positively charged, second conducting strip is electronegative, two electrodes of motor are by the 4th conducting strip, change-over swith, second conducting strip, the spacing copper sheet of second outage, brush, first conducting strip and corresponding lead form the loop, electrode is to the motor output DC, make motor output shaft that (this moment, the 3rd conducting strip and the spacing copper sheet of the 3rd outage were inoperative) take place just to change, secondary driven gear and output gear are rotated in the forward, the slippage on three spacing copper sheets of outage of three legs on the brush.After secondary driven gear and output gear rotate a circle (all numbers of rotation can freely be set by the arc length that changes the size of gear and the spacing copper sheet that cuts off the power supply), second leg on the brush and the spacing copper sheet of second outage break away from, and motor shuts down because of control circuit disconnects.

Press the button of change-over swith once more, the 4th conducting strip is electronegative, the 3rd conducting strip positively charged, two electrodes of motor form the loop by the 4th conducting strip, change-over swith, the 3rd conducting strip, the spacing copper sheet of the 3rd outage, brush, first conducting strip and corresponding lead, electrode is exported reverse direct current (DC) to motor, make motor output shaft reverse (this moment second conducting strip and second the outage spacing copper sheet inoperative), secondary driven gear and output gear contrarotation, the slippage on three spacing copper sheets of outage of three legs on the brush.After secondary driven gear and output gear rotated a circle, the 3rd leg on the brush and the spacing copper sheet of the 3rd outage broke away from, and motor shuts down because of control circuit disconnects.

Control owing to engage between before driving case input main shaft and the output main shaft with separating by output gear, under the effect of the spacing copper sheet of outage, output gear is just changeing or one week of backward rotation just stops, make and just engage between before driving case input main shaft and the output main shaft or separate, control is reliable like this, and safety is good.

On above-mentioned secondary driven gear, buffer substrate tablet is installed, this buffer substrate tablet is provided with the hangers towards output gear, the middle part fixing spring supporting blade of described secondary driven gear shaft, this spring supporting blade is provided with the journal stirrup towards the secondary driven gear, between described buffer substrate tablet and spring supporting blade, spring fixed seat is set, the spring fixed seat kink is on the secondary driven gear shaft, the outer end of this spring fixed seat is circumferentially spacing by the journal stirrup on the spring supporting blade, suit volute spring on described spring fixed seat, the inner and the spring fixed seat of this volute spring fix, and the outer end of volute spring is articulated on the hangers of described buffer substrate tablet.

Volute spring plays buffer deceleration, the spline of current driving box input main shaft and output main shaft is temporary transient synchronously and under the situation that can't engage by spline sleeve, during motor rotation, output gear can't rotate owing to clamping stagnation, spring fixed seat was blocked and can not be rotated by the spring supporting blade this moment, buffer substrate tablet is with the rotation of secondary driven gear, and the slowly rolling-in of volute spring ecto-entad, the commentaries on classics power that motor is spread out of condenses upon on the spring; When the spline of current driving box input main shaft and output main shaft is synchronous, volute spring is upheld automatically, and commentaries on classics power is passed to output gear, thereby reaches the effect of conversion, ensured two drive and 4 wheel driven between the reliability changed.

Above-mentioned secondary driven gear is sleeved on the secondary driven gear shaft by lining, and described buffer substrate tablet is sleeved on the lining, and passes through riveted and fixed between lining and secondary driven gear and the buffer substrate tablet, and the three connects firm, and synchronism is good.

Be provided with two buckles that form by bending on above-mentioned buffer substrate tablet, the overbending direction of this buckle is opposite with hangers, and each buckle snaps on the secondary driven gear in the cooresponding through hole.Buffer substrate tablet cooperates with the clamping of secondary driven gear by buckle, can effectively prevent to relatively rotate between the two.

In order to prevent that the spring supporting blade from rotating with respect to the secondary driven gear shaft, to ensure the buffer deceleration effect of volute spring, above-mentioned spring supporting blade is sleeved on the secondary driven gear shaft by square hole, passes through riveted and fixed between spring supporting blade and the secondary driven gear shaft.

Beneficial effect: the utlity model has novel, implement easily, characteristics such as flexibility and reliability, safety are good, applied range, it can make beach buggy select two-wheel drive or four wheel drive for use according to actual conditions, and easy switching between two-wheel drive and the four wheel drive, handle simple, thereby improved the power power and the crossing ability of beach buggy greatly.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the scheme of installation of before driving case and front propeller shaft in the utility model.

Fig. 3 is for driving the structural representation of conv.

Fig. 4 is the lateral plan of Fig. 3.

Fig. 5 is the scheme of installation of motor in the driving conv and the spacing copper sheet of outage.

Fig. 6 is for driving the schematic circuit diagram of conv.

Fig. 7 is for driving the transmission scheme drawing of conv.

Fig. 8 is the left view of Fig. 7.

Fig. 9 is for driving the scheme of installation of conv center brush, secondary driven gear and buffer substrate tablet.

Figure 10 is the back view of Fig. 9.

Figure 11 is for driving the structural representation of conv medi-spring supporting blade.

Figure 12 is the connection diagram of volute spring and spring fixed seat in the driving conv.

Figure 13 is the scheme drawing that drives when volute spring works in the conv.

The specific embodiment

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

As shown in Figure 1, the inner structure of driving engine 1 is a prior art, does not do at this and gives unnecessary details, and the rear end of driving engine 1 output shaft is connected with two rear axle shafts 2 by the back transmission device.Back transmission device is by adapter shaft 19, the first universal-joint spline housing 20, universal-joint splined shaft 21, the second universal-joint spline housing 22 and rear drive case 23 constitute, wherein adapter shaft 19 is bearing on the housing of driving engine 1 by bearing, the front end of adapter shaft 19 docks fixing with the rear end of driving engine 1 output shaft, the tail end of adapter shaft 19 passes from the aft end face of driving engine 1 housing, and be connected with the front end spline of the first universal-joint spline housing 20, the rear end of the first universal-joint spline housing 20 is connected with the front end spline of universal-joint splined shaft 21, and the rear end of universal-joint splined shaft 21 is connected with the input shaft of rear drive case 23 by the second universal-joint spline housing 22, two output sleeves of rear drive case 23 are connected with two rear axle shaft 2 splines respectively, two rear axle shafts 2 are arranged symmetrically in the left and right sides of rear drive case 23, and the axial line of the axial line of rear axle shaft 2 and driving engine 1 output shaft is perpendicular.The structure of rear drive case 23 is a prior art, does not also do at this and gives unnecessary details.

From Fig. 1, Fig. 2 as can be known, the front end of driving engine 1 output shaft passes from the front end face of motor body, and over against the tail end of front propeller shaft 4, both connect by spline housing 3 splines, can rotate together.Front end at front propeller shaft 4 is formed with the cydariform male splines, and this cydariform male splines stretches in the internal splined hole at before driving case input main shaft 6 rear portions, both also spline connections.Because importing with the before driving case, front propeller shaft 4 adopt the cydariform male splines to cooperate between the main shaft 6 with straight-tooth shape female splines, front propeller shaft 4 can be done tubaeform rotation around the center of cydariform male splines in the process of transmission like this, and then prevented that effectively the female splines that centrifugal when rotation and before driving case are imported main shaft 6 from bumping, eliminate abnormal sound, and ensured the reliability of transmission performance.The middle part of input main shaft 6 is bearing in the housing 18 of before driving case 5 by bearing, the aft end face of before driving tank shell 18 is stretched out in the rear end of input main shaft 6, the step groove that is processed with coaxial line with it in the front side of input main shaft 6 internal splined holes and communicates, the front end of a spring 15 stretches in this step groove, and the rear end of spring 15 is stretched in the groove that front propeller shaft 4 front end faces offer.Spring 15 works to eliminate endplay between front propeller shaft 4 and the before driving case input main shaft 6, with the reliability of further guarantee transmission.

Further as can be known, before driving case output main shaft 7 is positioned at the place ahead of input main shaft 6 from Fig. 1, Fig. 2, and both axial lines overlap with the axial line of driving engine 1 output shaft.The middle part of output main shaft 7 is bearing in the housing 18 of before driving case 5 by bearing, front portion at output main shaft 7 is formed with finishing bevel gear cuter 8, this finishing bevel gear cuter 8 meshes with the input screw bevel gear 10 of diff 9, two output sleeves of described diff 9 are connected with two propons semiaxis 11 splines respectively, two propons semiaxis 11 are arranged symmetrically in the both sides of diff 9, and the axial line of the axial line of propons semiaxis 11 and driving engine 1 output shaft is perpendicular.Diff 9 is a prior art, and its structure is not done at this and given unnecessary details.Front end at described before driving case input main shaft 6 is formed with the pre-small post-large guidepost 6a that is step, and this guidepost 6a stretches in the corresponding aperture of output main shaft 7 tail ends, both free-running fits.One section of input main shaft 6 next-door neighbour guidepost 6a with the tail end of exporting main shaft 7 side by side, both excircles are provided with shape and the identical male splines of size, and output main shaft 7 male splines on suit spline sleeve 12, spline sleeve 12 and output main shaft 7 spline fitted, and the outside face of spline sleeve 12 has circular groove.

Driving conv 17 is installed on the housing 18 of before driving case 5, the output gear 33 of this driving conv 17 is arranged in the resigning hole on the before driving tank shell 18, and with resigning hole in sliding rack 14 engagement, sliding rack 14 kinks are on guide finger 16, and guide finger 16 is arranged with the direction that is parallel to input main shaft 6 axial lines.Described sliding rack 14 is captiveed joint with the shank of shift fork 13, and the fork of shift fork 13 snaps in the circular groove of spline sleeve 12 outside faces.

The output gear 33 that drives conv 17 can rotate by positive and negative both direction, and the running of output gear 33 can drive sliding rack 14 front and back slippage on guide finger 16, drives spline sleeve 12 in the time of sliding rack 14 slippages and seesaws.Spline sleeve 12 is positioned on the before driving case output main shaft 7 when initial, input main shaft 6 and output main shaft 7 are in released state, this moment, the rear end of driving engine 1 output shaft drove 2 rotations of two rear axle shafts by adapter shaft 19, the first universal-joint spline housing 20, universal-joint splined shaft 21, the second universal-joint spline housing 22 and rear drive case 23 successively, rotated thereby drive trailing wheel; The front end of driving engine 1 output shaft drives front propeller shaft 4 rotations, front propeller shaft 4 drives the before driving case input main shaft 6 that is attached thereto again and rotates synchronously, because input main shaft 6 separates with output main shaft 7,6 idle running of before driving case input main shaft, output main shaft 7 does not rotate, this moment, beach buggy adopted two back-wheel drives, was suitable in condition of road surface travels down preferably.

When the output gear 33 that drives conv 17 is just changeing, output gear 33 drives sliding rack 14 and shift fork 13 moves backward, shift fork 13 is stirred spline sleeve 12 from exporting main shaft 7 to 6 slippages of input main shaft, output main shaft 7 and input main shaft 6 link together by spline sleeve 12, input main shaft 6 drives 7 rotations of output main shaft by spline sleeve 12, output main shaft 7 drives 11 rotations of two propons semiaxis by diff 9 again, thereby driving front-wheel rotates, this moment, the front and back wheel of beach buggy all had propulsive effort, strengthened the dynamic property of beach buggy so greatly, effectively improved the crossing ability of beach buggy, made beach buggy reach mire more greatly in the gradient, frost boiling all can be travelled on the highway section smoothly.To switch back two-wheel drive from four wheel drive, only need output gear 33 counter-rotatings of controlling and driving conv 17 to get final product, output gear 33 drive sliding racks 14 and shift fork 13 are travelled forward, shift fork 13 is stirred spline sleeve 12 from importing main shaft 6 to 7 slippages of output main shaft, get back to fully on the output main shaft 7 until spline sleeve 12, with the power cut between input main shaft 6 and the output main shaft 7.

The concrete structure that drives conv 17 is: as Fig. 3, Fig. 4, Fig. 5, Fig. 7, Fig. 8, Fig. 9 and shown in Figure 10, the housing that drives conv 17 is made of box body 24 and lid 25, opening end outer rim at box body 24 and lid 25 is provided with the journal stirrup that shape is identical, number equates, the opening end of box body 24 and lid 25 connects, both connect by screw by corresponding journal stirrup, and box body 24 and lid 25 are fixed together.Motor 26 is positioned at an end of converter shell inner chamber, and is fixed on the interior diapire of box body 24 by spacer.The one-level output worm screw 28 of coaxial line with it is installed on the output shaft of motor 26, this one-level output worm screw 28 and driven worm gear 29 engagements of one-level, the axle of the driven worm gear 29 of one-level is spatially vertical with one-level output worm screw 28, and the axle of the driven worm gear 29 of one-level is gone up suit secondary driving gear 30, in the groove that the driven worm gear of one end embedding one-level 29 central authorities of secondary driving gear 30 offer, the other end of secondary driving gear 30 and 31 engagements of secondary driven gear.

Secondary driven gear 31 is sleeved on an end of secondary driven gear shaft 32 by lining 46, and the other end of secondary driven gear shaft 32 stretches out outside the lid 25, and sponson suit output gear 33.Suit buffer substrate tablet 42 on the described lining 46, this buffer substrate tablet 42 and output gear 33 are positioned at the same side of secondary driven gear 31, and by riveted and fixed, the three connects firm between secondary driven gear 31, lining 46 and buffer substrate tablet 42 threes, and synchronism is good.On buffer substrate tablet 42, be provided with towards the hangers 42a of output gear 33 bendings and two buckle 42b that bend towards secondary driven gear 31, two buckle 42b and hangers 42a are equicrural triangle and distribute, and each buckle 42b snaps on the secondary driven gear 31 in the cooresponding through hole.Buffer substrate tablet 42 cooperates with 31 clampings of secondary driven gear by buckle 42b, can effectively prevent to relatively rotate between the two.

From Fig. 7, Fig. 8, Figure 11, Figure 12 and shown in Figure 13, the mounting hole 43b of spring supporting blade 43 is a square hole, spring supporting blade 43 is sleeved on the middle part of secondary driven gear shaft 32 by this square hole, passes through riveted and fixed between spring supporting blade 43 and the secondary driven gear shaft 32.Be provided with the journal stirrup 43a towards 31 bendings of secondary driven gear on spring supporting blade 43, journal stirrup 43a is positioned at the inboard of buffer substrate tablet hangers 42a.Between buffer substrate tablet 42 and spring supporting blade 43 spring fixed seat 44 is set, these spring fixed seat 44 kinks are on secondary driven gear shaft 32, and the outer end of spring fixed seat 44 is circumferentially spacing by the journal stirrup 43a on the spring supporting blade 43.Suit volute spring 45 on described spring fixed seat 44, the inner of this volute spring 45 and spring fixed seat 44 connect and fix, and the outer end of volute spring 45 is articulated on the described buffer substrate tablet hangers 42a.

From Fig. 3, Fig. 5, Fig. 6 and shown in Figure 9, at secondary driven gear 31 brush 34 is housed on the card of box body 24, this brush 34 has three leg 34a, the 34b, the 34c that are parallel to each other.With brush leg 34a, 34b, three spacing copper sheets 35 of outage that 34c matches, 36,37 are fixed on the interior diapire of box body 24, three spacing copper sheets 35 of outage, 36,37 are circular arc, be positioned on the different circumference, their center of circle is on same point, wherein the spacing copper sheet 36 of second outage is between the first spacing copper sheet 35 of outage and the spacing copper sheet 37 of the 3rd outage, the arc length maximum of the spacing copper sheet 35 of first outage, the arc length minimum of the spacing copper sheet 37 of the 3rd outage, one end of the spacing copper sheet 35 of described first outage aligns with the respective end of the spacing copper sheet 36 of second outage, and the other end of the spacing copper sheet 35 of first outage does not exceed the respective end of the spacing copper sheet 37 of the 3rd outage.The spacing copper sheet 35 of described first outage is connected with an electrode plug 26a of motor 26 by first conducting strip 38, another electrode plug 26b of motor 26 is connected with the corresponding binding post of change-over swith 27 by the 4th conducting strip 39 and lead, and change-over swith 27 is positioned at the outside of converter shell.The spacing copper sheet 36 of second outage is connected with the corresponding binding post of change-over swith 27 by second conducting strip 40 and lead, and the spacing copper sheet 37 of the 3rd outage also is connected with the corresponding binding post of change-over swith 27 by the 3rd conducting strip 41 and lead.Connecting wire between change-over swith 27 and the motor 26 inserts the motorcycle main cable, by storage battery 47 power supplies.

The rotation of output gear 33 is achieved in that the running of motor 26 is by the push button control of pushing change-over swith 27 in the utility model, change-over swith 27 can always change the magnetic direction of motor internal by the both positive and negative polarity that changes motor 26 received currents, makes motor 26 output shaft generation forward rotation or counter-rotatings.When motor 26 runnings, motor output shaft drives 28 rotations of one-level output worm screw, one-level output worm screw 28 drives the driven worm gear 29 of one-level and coaxial with it secondary driving gear 30 rotates, secondary driving gear 30 drives secondary driven gear 31 rotation again, makes with the coaxial output gear 33 of secondary driven gear 31 to rotate.Since the output shaft of motor can positive and negative two to rotation, make turning to of output gear 33 that both direction also be arranged.

Change-over swith 27 is the general-duty push switch, change-over swith 27 control motor 26 output shaft forward rotation or counter-rotating are achieved in that when pressing the button of change-over swith 27, the 4th conducting strip 39 positively chargeds, second conducting strip 40 is electronegative, two electrode 26a of motor 26,26b is by the 4th conducting strip 39, change-over swith 27, second conducting strip 40, the spacing copper sheet 36 of second outage, brush 34, first conducting strip 38 and corresponding lead form the loop (see figure 6), electrode 26a, 26b is to the motor output DC, make motor output shaft that (this moment the 3rd conducting strip 41 and the 3rd outage spacing copper sheet 37 inoperative) take place just to change, secondary driven gear 31 and output gear 33 are rotated in the forward, three leg 34a on the brush, 34b, 34c moves in a circle (as Fig. 6 left-hand revolution) with secondary driven gear 31, three leg 34a, 34b, 34c is at three spacing copper sheets 35 of outage, 36, slippage on 37.After secondary driven gear 31 and output gear 33 rotate a circle, the spacing copper sheet 36 of the second leg 34b on the brush and second outage breaks away from, the control circuit of motor 26 opens circuit, and motor 26 shuts down, and before driving case input this moment main shaft 6 and output main shaft 7 just in time engage and put in place.

Press the button of change-over swith 27 once more, the 4th conducting strip 39 is electronegative, the 3rd conducting strip 41 positively chargeds, two electrode 26a of motor, 26b is by the 4th conducting strip 39, change-over swith 27, the 3rd conducting strip 41, the spacing copper sheet 37 of the 3rd outage, brush 34, first conducting strip 38 and corresponding lead form the loop (see figure 6), electrode 26a, 26b exports reverse direct current (DC) to motor, make motor output shaft reverse (this moment, second conducting strip 40 and the second outage spacing copper sheet 36 were inoperative), secondary driven gear 31 and output gear 33 contrarotations, three leg 34a on the brush, 34b, 34c is at three spacing copper sheets 35 of outage, 36, do cw slippage as shown in Figure 6 on 37.After secondary driven gear 31 and output gear 33 rotate a circle, the spacing copper sheet 37 of the 3rd leg 34c on the brush and the 3rd outage breaks away from, the control circuit of motor 26 opens circuit, and motor 26 shuts down, and before driving case input this moment main shaft 6 just in time separates fully with output main shaft 7.

When the button of pressing change-over swith 27, beach buggy is turned when changing 4 wheel driven into from two, under normal circumstances, secondary driven gear 31, buffer substrate tablet 42, spring fixed seat 44, volute spring 45, spring supporting blade 43 and output gear 33 rotate (Figure 13 is shown as conter clockwise) synchronously with secondary driven gear shaft 32, output gear 33 drives spline sleeve 12 from exporting main shaft 7 to 6 slippages of input main shaft by sliding rack 14 and shift fork 13, and output main shaft 7 and input main shaft 6 link together by spline sleeve 12; But press the button of change-over swith 27, under the temporary transient not synchronous situation of the spline of input main shaft 6 and output main shaft 7, output gear 33 can't rotate owing to clamping stagnation, this moment, volute spring 45 began the effect of buffer deceleration, spring fixed seat 44 is blocked and can not be rotated by the journal stirrup 43a on the spring supporting blade 43, buffer substrate tablet 42 is with secondary driven gear 31 left-hand revolutions (seeing Figure 13), buffer substrate tablet hangers 42a is the slowly rolling-in of volute spring 45 ecto-entads, the commentaries on classics power that motor 26 is spread out of condenses upon on the spring 45, when the spline of input main shaft 6 and output main shaft 7 is synchronous, volute spring 45 is upheld automatically, commentaries on classics power is passed to output gear 33, output gear 33 is moved by sliding rack 14 and shift fork 13 drive spline sleeves 12, thereby reach the effect of conversion, ensured the reliability of conversion.

Claims (10)

1, a kind of beach buggy drive system, comprise driving engine (1), it is characterized in that: the front end of described driving engine (1) output shaft passes from the front end face of motor body, and by the end joint connection of spline housing (3) with front propeller shaft (4), the front end of this front propeller shaft (4) is connected with input main shaft (6) spline of before driving case (5), the output main shaft (7) of described before driving case (5) is provided with finishing bevel gear cuter (8), this finishing bevel gear cuter (8) meshes with the input screw bevel gear (10) of diff (9), two output sleeves of described diff (9) are connected with two propons semiaxis (11) respectively, and two propons semiaxis (11) are arranged symmetrically in the both sides of diff (9); The input main shaft (6) of described before driving case (5) is provided with shape and the identical male splines of size with output main shaft (7), and output main shaft (7) male splines on suit spline sleeve (12), the outside face of this spline sleeve (12) has circular groove, the fork of shift fork (13) snaps in this circular groove, the shank of shift fork (13) and sliding rack (14) fix, described sliding rack (14) is arranged in the resigning hole on the before driving tank shell (18), and kink is on guide finger (16), and sliding rack (14) is meshed with the output gear (33) that drives conv (17).

2, beach buggy drive system according to claim 1 is characterized in that: the front end at described front propeller shaft (4) is provided with the cydariform male splines, and this cydariform male splines stretches in the internal splined hole at before driving case input main shaft (6) rear portion, and both splines connect.

3, beach buggy drive system according to claim 2 is characterized in that: be provided with spring (15) in the internal splined hole of described before driving case input main shaft (6), the rear end of this spring (15) is stretched in the end face groove of front propeller shaft (4).

4, according to claim 1 or 2 or 3 described beach buggy drive systems, it is characterized in that: the front end at described before driving case input main shaft (6) is provided with guidepost (6a), and this guidepost (6a) stretches in the corresponding aperture of output main shaft (7), both free-running fits.

5, beach buggy drive system according to claim 1, it is characterized in that: the housing of described driving conv (17) is formed by box body (24) and lid (25) butt joint, motor (26) is installed in the inner chamber of described converter shell, this motor (26) is connected by the outer change-over swith (27) of lead and converter shell, and one-level output worm screw (28) is installed on the output shaft of motor (26), this one-level output worm screw (28) and the driven worm gear of one-level (29) engagement, axle at the driven worm gear of one-level (29) is gone up suit secondary driving gear (30), secondary driving gear (30) and secondary driven gear (31) engagement, described secondary driven gear (31) is sleeved on an end of secondary driven gear shaft (32), the other end of this secondary driven gear shaft (32) stretches out outside the lid (25), and sponson suit output gear (33).

6, beach buggy drive system according to claim 5, it is characterized in that: brush (34) is housed on the card of box body (24) at described secondary driven gear (31), this brush (34) has three leg (34a that are parallel to each other, 34b, 34c), with brush leg (34a, 34b, three spacing copper sheets (35 of outage that 34c) match, 36,37) be fixed in the box body (24), three spacing copper sheets (35 of outage, 36,37) be circular arc, their center of circle is on same point, wherein the second spacing copper sheet of outage (36) is positioned between the first outage spacing copper sheet (35) and the 3rd spacing copper sheet of outage (37), the arc length maximum of the first spacing copper sheet of outage (35), the arc length minimum of the 3rd spacing copper sheet of outage (37), one end of the described first spacing copper sheet of outage (35) aligns with the respective end of the second spacing copper sheet of outage (36), and the other end of the first spacing copper sheet of outage (35) does not exceed the respective end of the 3rd spacing copper sheet of outage (37); The described first spacing copper sheet of outage (35) is connected with an electrode plug (26a) of motor (26) by first conducting strip (38), another electrode plug (26b) of motor (26) is connected with change-over swith (27) by the 4th conducting strip (39) and lead, and described second, third spacing copper sheet (36,37) that cuts off the power supply passes through second conducting strip (40), the 3rd conducting strip (41) and corresponding lead respectively and also is connected with change-over swith (27).

7, beach buggy drive system according to claim 6, it is characterized in that: go up at described secondary driven gear (31) buffer substrate tablet (42) is installed, this buffer substrate tablet (42) is provided with the hangers (42a) towards output gear (33), the middle part fixing spring supporting blade (43) of described secondary driven gear shaft (32), this spring supporting blade (43) is provided with the journal stirrup (43a) towards secondary driven gear (31), between described buffer substrate tablet (42) and spring supporting blade (43), spring fixed seat (44) is set, spring fixed seat (44) kink is on secondary driven gear shaft (32), the outer end of this spring fixed seat (44) is circumferentially spacing by the journal stirrup (43a) on the spring supporting blade (43), go up suit volute spring (45) at described spring fixed seat (44), the inner of this volute spring (45) and spring fixed seat (44) fix, and the outer end of volute spring (45) is articulated on the hangers (42a) of described buffer substrate tablet (42).

8, beach buggy drive system according to claim 7, it is characterized in that: described secondary driven gear (31) is sleeved on the secondary driven gear shaft (32) by lining (46), described buffer substrate tablet (42) is sleeved on the lining (46), and passes through riveted and fixed between lining (46) and secondary driven gear (31) and the buffer substrate tablet (42).

9, beach buggy drive system according to claim 8, it is characterized in that: on described buffer substrate tablet (42), be provided with two buckles that form by bending (42b), the overbending direction of this buckle (42b) is opposite with hangers (42a), and each buckle (42b) snaps in secondary driven gear (31) and goes up in the cooresponding through hole.

10, beach buggy drive system according to claim 7 is characterized in that: described spring supporting blade (43) is sleeved on the secondary driven gear shaft (32) by square hole, passes through riveted and fixed between spring supporting blade (43) and the secondary driven gear shaft (32).

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