CN201816661U

CN201816661U - Improved electric tractor

Info

Publication number: CN201816661U
Application number: CN2010202935519U
Authority: CN
Inventors: 陆忠辉; 徐炎清
Original assignee: QIDONG DATNG MOTOR CO Ltd
Current assignee: QIDONG DATNG MOTOR CO Ltd
Priority date: 2010-08-17
Filing date: 2010-08-17
Publication date: 2011-05-04
Anticipated expiration: 2020-08-17

Abstract

The utility model relates to an improved electric tractor which comprises a frame, a traction hook, power supply equipment, driven axle driven by a direct-current motor, a speed regulating handle, a motor speed controller, a universal wheel and a walking wheel. The improved electric tractor has the advantages of being compact and small in structure, flexible and convenient to operate and wide in application range.

Description

A kind of improved electrically propelled traction vehicle

Technical field

The utility model relates to tractor truck, relates in particular to a kind of improved electrically propelled traction vehicle.

Background technology

At present, well-known electrically propelled traction vehicle mostly is the station and drives formula or car formula vehicle, and structure adopts vertical or horizontal drive wheel as power unit.Wheel steering multidigit, integral structure are complicated, and the big manufacturing cost of volume is higher.Move and the required operating range of turning poor for applicability in less zone.

The utility model content

The purpose of this utility model provides a kind of improved electrically propelled traction vehicle, applicable to industries such as airport, station, postal service, market, logistics, industrial enterprises, and the also important transportation instrument that circulates as Regional Logistics carrying and workshop.

The technical solution adopted in the utility model is:

A kind of improved electrically propelled traction vehicle, comprise frame, the traction hitcher, electric power provides equipment, drive axle by the DC machine driving, speed regulating handle, electric motor speed controller, cardan wheel and road wheel, described speed regulating handle is captiveed joint with the frame upper boom of being located at upper rack, described road wheel is located at the frame lower front end, be connected with the drive axle that drives by DC machine between the described road wheel, described DC machine is fixed on frame lower, described DC machine provides equipment to be electrically connected with electric power, described drive axle comprises change speed gear box, diff, left half axle and right axle shaft, described change speed gear box comprises gear shift cover, gear wheel shaft A, gear B and gear C; Described DC machine is captiveed joint with gear wheel shaft A by coupler, gear B and gear wheel shaft A engagement, gear C is coaxial with gear B, described frame front side is fixed with the traction hitcher, described traction hitcher comprises fixed connecting base, bearing pin A, bearing pin B, torsion spring, swivel arm, extension spring, extension spring fixed link A, extension spring fixed link B and hitcher body, described traction hitcher is fixed in the frame front side by fixed connecting base, described fixed connecting base is provided with bearing pin A, be socketed with torsion spring on the described bearing pin A, described bearing pin A and swivel arm flexibly connect, be fixed with extension spring fixed link A on the described swivel arm, described swivel arm and hitcher body flexibly connect by bearing pin B, be fixed with extension spring fixed link B on the described hitcher body, be fixed with extension spring between described extension spring fixed link A and the extension spring fixed link B, described hitcher body front end is provided with the crank handgrip, described crank handgrip bottom flexibly connects with fixed pedestal and connecting rod respectively, described connecting rod is captiveed joint with slide shaft, described slide shaft is connected with the screw flight that has nut after passing guide holder, described screw rod with can captive joint along the movable clamp that the hitcher body slides, the end of described hitcher body is fixed with and fixes to clamp piece;

Described diff is the integral type differential device, described integral type differential device comprises gear D, planet pinion gear A, planet pinion gear B, sun wheel A, sun wheel B, differential casing and axle, described planet pinion gear A and planet pinion gear B are set on the axle, described gear D is fixed on the differential casing, gear C engagement in described gear D and the change speed gear box, described planet pinion gear A, planet pinion gear B, sun wheel A and sun wheel B all place in the differential casing, and described sun wheel A is spline with left half axle, sun wheel B with right axle shaft and is connected; Described drive axle also comprises an arm housing and a permanent seat, and the end of described left half axle or right axle shaft places in the permanent seat, and described arm housing is split-type structural with gear box casing, and described arm housing is fixed in bottom the gear box casing.

Described movable clamp is fixed with resilient sleeper-bearing respectively with the opposite face that fixes to clamp piece, and described road wheel is solid rubber tire.

Described cardan wheel is fixed in the frame lower rear end, described electric motor speed controller is fixed in the back side of frame upper boom, it is the battery pack that places in the space that battery case and battery case shrouding form that described electric power provides equipment, described battery case shrouding bottom is provided with quick plug, described frame is provided with battery mounting, described battery mounting is provided with the socket suitable with quick plug, quick plug inserts on the socket when battery pack is fixed on the battery mounting, and described socket bottom is electrically connected with DC machine.

Described battery mounting comprises adapter plate and frame upper boom, and the described battery case top that battery pack is housed is provided with handle, and described battery case both sides are equipped with the C type groove that radian and adapter plate and frame upper boom are complementary.

The utility model has the advantages that: compact conformation, small and exquisite, flexible operation, convenience, applied widely.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

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

Fig. 2 is an overall diagram of the present utility model.

Fig. 3 is the hauling hook of the present utility model structure scheme drawing of signing an undertaking.

Fig. 4 is a drive axle structural representation of the present utility model.

Fig. 5 is a battery pack structure scheme drawing of the present utility model.

Wherein: 1, frame, 2, the traction hitcher, 3, battery pack, 4, DC machine, 5, drive axle, 6, speed regulating handle, 7, electric motor speed controller, 8, cardan wheel, 9, road wheel, 10, the frame upper boom, 11, change speed gear box, 12, the integral type differential device, 13, left half axle, 14, right axle shaft, 15, gear shift cover, 16, gear wheel shaft A, 17, gear B, 18, gear C, 19, coupler, 20, fixed connecting base, 21, bearing pin A, 22, torsion spring, 23, swivel arm, 24, extension spring, 25, extension spring fixed link A, 26, extension spring fixed link B, 27, the hitcher body, 28, the crank handgrip, 29, fixed pedestal, 30, connecting rod, 31, slide shaft, 32, guide holder, 33, nut, 34, screw rod, 35, movable clamp, 36, fix to clamp piece, 37, gear D, 38, planet pinion gear A, 39, planet pinion gear B, 40, sun wheel A, 41, sun wheel B, 42, differential casing, 43, axle, 44, prop up arm housing, 45, permanent seat, 46, resilient sleeper-bearing, 47, battery case, 48, the battery case shrouding, 49, quick plug, 50, battery mounting, 51, socket, 52, adapter plate, 53, handle, 54, C type groove, 55, bearing pin B, 56, gear box casing.

The specific embodiment

As Fig. 1,2,3, shown in 4 and 5, a kind of improved electrically propelled traction vehicle of the present utility model, comprise frame 1, traction hitcher 2, drive axle 5 by DC machine 4 drivings, speed regulating handle 6, electric motor speed controller 7, cardan wheel 8 and road wheel 9, speed regulating handle 6 is captiveed joint with the frame upper boom 10 of being located at frame 1 top, road wheel 9 is located at frame 1 bottom front end, be connected with the drive axle 5 that drives by DC machine 4 between the road wheel 9, DC machine 4 is fixed on frame 1 bottom, DC machine 4 provides equipment to be electrically connected with electric power, it is the battery pack 3 that places in the space that battery case 47 and battery case shrouding 48 form that this electric power provides equipment, drive axle 5 comprises change speed gear box 11, integral type differential device 12, left half axle 13 and right axle shaft 14, change speed gear box 11 comprises gear shift cover 15, gear wheel shaft A16, gear B 17 and gear C 18; DC machine 4 is captiveed joint with gear wheel shaft A16 by coupler 19, gear B 17 and gear wheel shaft A16 engagement, gear C 18 is coaxial with gear B 17, frame 1 front side is fixed with traction hitcher 2, traction hitcher 2 comprises fixed connecting base 20, bearing pin A21, bearing pin B55, torsion spring 22, swivel arm 23, extension spring 24, extension spring fixed link A25, extension spring fixed link B26 and hitcher body 27, traction hitcher 2 is fixed in frame 1 front side by fixed connecting base 20, fixed connecting base 20 is provided with bearing pin A21, be socketed with torsion spring 22 on the bearing pin A21, bearing pin A21 and swivel arm 23 flexibly connect, be fixed with extension spring fixed link A25 on the swivel arm 23, swivel arm 23 flexibly connects by bearing pin B55 with hitcher body 27, be fixed with extension spring fixed link B26 on the hitcher body 27, be fixed with extension spring 24 between extension spring fixed link A25 and the extension spring fixed link B26, hitcher body 27 front ends are provided with crank handgrip 28, crank handgrip 28 bottoms flexibly connect with fixed pedestal 29 and connecting rod 30 respectively, connecting rod 30 is captiveed joint with slide shaft 31, slide shaft 31 passes guide holder 32 backs and is threaded with the screw rod 34 that has nut 33, screw rod 34 with can captive joint along the movable clamp 35 that hitcher body 27 slides, the end of hitcher body 27 is fixed with and fixes to clamp piece 36, movable clamp 35 is fixed with resilient sleeper-bearing 46 respectively with the opposite face that fixes to clamp piece 36, and road wheel 9 is solid rubber tire.Integral type differential device 12 comprises gear D 37, planet pinion gear A38, planet pinion gear B39, sun wheel A40, sun wheel B41, differential casing 42 and axle 43, planet pinion gear A38 and planet pinion gear B39 are set on the axle 43, gear D 37 is fixed on the differential casing 42, gear C 18 engagements in gear D 37 and the change speed gear box 11, planet pinion gear A38, planet pinion gear B39, sun wheel A40 and sun wheel B41 all place in the differential casing 42, and sun wheel A40 is spline with left half axle 13, sun wheel B41 with right axle shaft 14 and is connected; Drive axle 5 also comprises an arm housing 44 and a permanent seat 45, and the end of left half axle 13 or right axle shaft 14 places in the permanent seat 45, and an arm housing 44 is a split-type structural with gear box casing 56, and an arm housing 44 is fixed in gear box casing 56 bottoms.Cardan wheel 8 is fixed in rear end, frame 1 bottom, electric motor speed controller 7 is fixed in the back side of frame upper boom 10, battery case shrouding 48 bottoms are provided with quick plug 49, frame 1 is provided with battery mounting 50, battery mounting 50 is provided with the socket 51 suitable with quick plug 49, quick plug 49 inserts on the socket 51 when battery pack 3 is fixed on the battery mounting 50, socket 51 bottoms are electrically connected with DC machine 4, battery mounting 50 comprises adapter plate 52 and frame upper boom 10, battery case 47 tops that battery pack 3 is housed are provided with handle 53, and battery case 47 both sides are equipped with the C type groove 54 that radian and adapter plate 52 and frame upper boom 10 are complementary.

The utility model is provided with crank handgrip 28, guide holder 32 and movable clamp 35 at the front end of hitcher body 27, and above-mentioned three is coupled together by attaching parts, utilization is to the principle of slider-crank mechanism, rotate by crank handgrip 28 front and back, slide in drive activity clamp 35 front and back, the displacement that utilizing slides forms is satisfied unclamping of clamped thing and clamped; Utilize screw rod 34 to go deep into the length of slide shaft 31, adjustment activity clamp 35 and fix to clamp distance between the piece 36, and, both guaranteed effective clamping fixing to clamp the elastomeric pad 46 that adheres to anti-skidding abrasionproof on piece 36 and the movable clamp 35, guarantee not damage clamped thing again.Thereby reach and unclamp, clamp quick, convenient, electrodeless adjusting fixes to clamp the distance of piece 36 and movable clamp 35, reaches no gap and steps up, do not have the purpose of damaging, not breaking off relations.

Traction hitcher 2 of the present utility model swivel arm 23 when work swings around bearing pin A 21, under torsion spring 22 tension force swivel arm 23 is automatically reset, and when reaching the tractor truck turning, makes to be pulled thing turning smoothness, automatically resets when directly drawing.Hitcher body 27, automatically resets under extension spring 24 pullings in swinging up and down around bearing pin B55, reaches tractor truck and is pulled thing automatically regulating under the situation of ground injustice, guarantees reliable clamping, automatically resets by extension spring 24 when getting back to smooth ground.Screw in the length of slide shaft 31 by adjusting screw(rod) 34, the distance that reaches accurate adjusting activity clamp 35 and fix to clamp between the piece 36 is regulated arbitrarily in scope of design, utilization sticks to movable clamp 35 and fixes to clamp the elasticity and the toughness of the elastomeric pad 46 on the piece 36, reaches anti-skidding abrasionproof, the clamping of no gap.Rotating crank handgrip 28, drivening rod 30, and then the horizontal direction sway of drive slide shaft 31, realization activity clamp 35 and the variation that fixes to clamp piece 36 distances, reach the purpose that clamps or unclamp clamped thing, when throw crank handgrip 28 left, movable clamp 35 moves to left, and big with the distance change that fixes to clamp piece 36, unclamp clamped thing; When throw crank handgrip 28 to the right, movable clamp 35 moves to right, narrow down to the thickness of holdfast with the distance that fixes to clamp piece 36, realize the purpose of clamping, and the characteristic of utilizing crank handgrip 28 and connecting rod 30 hinges junctions to be in the dead point state realizes not becoming flexible the effect that breaks off relations after clamping back self-locking reaches clamping.

The sun wheel A40 of the utility model drive axle 5 is spline with left half axle 13, sun wheel B41 with right axle shaft 14 and is connected, and has the load-carrying capacity height, and good to neutrality, guidance quality is good, and tooth root is more shallow, and stress concentration is less, and semiaxis and sun wheel strength reduction are little; Diff of the present utility model is an integral type differential device 12, planet pinion gear A38, planet pinion gear B39, sun wheel A40 and sun wheel B41 all place in the differential casing 42, planet pinion gear A38 and planet pinion gear B39 are installed on the same axle 43, guaranteed the right alignment of two sun wheels like this, the squareness of the right alignment of two planet pinion gears and sun wheel and planet pinion gear guarantees the gear meshing precision, long service life like this, noise is low, the driving efficiency height.Gear box casing 56 of the present utility model is designed to the split formula with an arm housing 44, can be according to different wheelspans by change support arm and semiaxis length dimension, and so easy formation tandem product, low cost of manufacture, the preferred dimension scope is wide, and applicability is strong.

Drive axle 5 working processs of the present utility model are: because DC machine 4 is captiveed joint with gear wheel shaft A16 by coupler 19, gear B 17 and gear wheel shaft A16 engagement, gear C 18 is coaxial with gear B 17, gear C 18 engagements in gear D 37 and the change speed gear box 11, DC machine 4 of the present utility model is rotated by coupler 19 driven gear axle A16, gear cluster A16 driven gear B17 decelerated movement, gear B 17 drives coaxial gear C 18 and rotates, 18 driven gear D37 of gear C deceleration transmission, drive 12 work of integral type differential device by 37 of gear Ds, sun wheel A40 and sun wheel B41 pass through splined respectively, moment of torsion is passed to left half axle 13 and right axle shaft 14, realize a left side, the external transfer torque of right axle shaft.Road wheel 9 is installed on left half axle 13 and the right axle shaft 14, is realized the walking of battery-driven car.According to the diff principle, when the battery-driven car straight-line travelling, be installed in road wheel on left half axle 13 and the right axle shaft 14 with same rotational speed, planet pinion gear A38 and the planet pinion gear B39 not rotation of only revolving round the sun, sun wheel A40 and sun wheel B41 do not rotate yet, so differential casing 42 is effectively pinned.

When battery-driven car was turned, inboard wheel speed was lower, and outside wheel speed is higher.Realize the differential of left half axle 13 and right axle shaft 14 by integral type differential device 12, can not cause not skidding of wheel when turning, effectively prevent the rollover phenomenon when battery-driven car is turned.

The utility model is made power supply by battery pack 3 and is supplied with DC machine 4, DC machine 4 drives drive axle 5, finally power and moment of torsion is passed to the driving walking function of realizing machine as the solid rubber tire of road wheel 9, and battery pack 3 adopts integral type, can take out charging, replace another battery pack; Cardan wheel 8 is fixed in rear end, frame 1 bottom, the function that plays the balance support machine and turn flexibly; Speed regulating handle 6 is captiveed joint with the frame upper boom 10 of being located at frame 1 top, the height that requires scalable speed regulating handle 6 according to ergonomics, form electric control system by speed regulating handle 6 and electric motor speed controller 7 etc. and can realize functions such as motor forward and backward, stepless change, urgency are stopped oppositely, electric weight demonstration, buzzing caution, realize electrically propelled traction vehicle stepless change, smooth starting, move, advance, retreat, suddenly stop, oppositely, easy to operate, safe and reliable.

The utility model is built in battery pack 3 in the battery case 47 that a kind of ABS of employing or PE plastics make, then battery case shrouding 48 is sealed up, and on battery case shrouding 48, be provided with fast and insert 49, this quick plug 49 is a Charger (portable round), is again battery pack 3 power supply output plugs.Battery pack 3 of the present utility model takes out on machine or charger seat packs into conveniently, and battery is in the horizontal state all the time during charging, can not cause the acid liquor leakage phenomenon, help charging, prolong the service life of battery, two group storage battery groups 3 are used alternatingly, and can improve the utilization ratio of machine.

Claims

1. improved electrically propelled traction vehicle, comprise frame, the traction hitcher, electric power provides equipment, drive axle by the DC machine driving, speed regulating handle, electric motor speed controller, cardan wheel and road wheel, described speed regulating handle is captiveed joint with the frame upper boom of being located at upper rack, described road wheel is located at the frame lower front end, be connected with the drive axle that drives by DC machine between the described road wheel, described DC machine is fixed on frame lower, described DC machine provides equipment to be electrically connected with electric power, described drive axle comprises change speed gear box, diff, left half axle and right axle shaft, described change speed gear box comprises gear shift cover, gear wheel shaft A, gear B and gear C; Described DC machine is captiveed joint with gear wheel shaft A by coupler, gear B and gear wheel shaft A engagement, gear C is coaxial with gear B, described frame front side is fixed with the traction hitcher, described traction hitcher comprises fixed connecting base, bearing pin A, bearing pin B, torsion spring, swivel arm, extension spring, extension spring fixed link A, extension spring fixed link B and hitcher body, described traction hitcher is fixed in the frame front side by fixed connecting base, described fixed connecting base is provided with bearing pin A, be socketed with torsion spring on the described bearing pin A, described bearing pin A and swivel arm flexibly connect, be fixed with extension spring fixed link A on the described swivel arm, described swivel arm and hitcher body flexibly connect by bearing pin B, be fixed with extension spring fixed link B on the described hitcher body, be fixed with extension spring between described extension spring fixed link A and the extension spring fixed link B, it is characterized in that, described hitcher body front end is provided with the crank handgrip, described crank handgrip bottom flexibly connects with fixed pedestal and connecting rod respectively, described connecting rod is captiveed joint with slide shaft, described slide shaft is connected with the screw flight that has nut after passing guide holder, described screw rod with can captive joint along the movable clamp that the hitcher body slides, the end of described hitcher body is fixed with and fixes to clamp piece;

2. a kind of improved electrically propelled traction vehicle according to claim 1 is characterized in that, described movable clamp is fixed with resilient sleeper-bearing respectively with the opposite face that fixes to clamp piece, and described road wheel is solid rubber tire.

3. a kind of improved electrically propelled traction vehicle according to claim 1, it is characterized in that, described cardan wheel is fixed in the frame lower rear end, described electric motor speed controller is fixed in the back side of frame upper boom, it is the battery pack that places in the space that battery case and battery case shrouding form that described electric power provides equipment, described battery case shrouding bottom is provided with quick plug, described frame is provided with battery mounting, described battery mounting is provided with the socket suitable with quick plug, quick plug inserts on the socket when battery pack is fixed on the battery mounting, and described socket bottom is electrically connected with DC machine.

4. a kind of improved electrically propelled traction vehicle according to claim 3, it is characterized in that, described battery mounting comprises adapter plate and frame upper boom, the described battery case top that battery pack is housed is provided with handle, and described battery case both sides are equipped with the C type groove that radian and adapter plate and frame upper boom are complementary.