CN201769929U - Rest type electric drawing vehicle - Google Patents
Rest type electric drawing vehicle Download PDFInfo
- Publication number
- CN201769929U CN201769929U CN2010202935434U CN201020293543U CN201769929U CN 201769929 U CN201769929 U CN 201769929U CN 2010202935434 U CN2010202935434 U CN 2010202935434U CN 201020293543 U CN201020293543 U CN 201020293543U CN 201769929 U CN201769929 U CN 201769929U
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- gear
- fixed
- hitcher
- control box
- wheel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model relates to a rest type electric drawing vehicle, which is characterized in that a counter weight fixing seat is arranged on a frame; a main counter weight block is fixed on the counter weight fixing seat; an electric control box is also fixed at the rear end of the frame; a universal wheel is fixed at the rear end at the lower part of the electric control box; power supplying equipment adopts two storage batteries are arranged vertically; the two storage batteries are arranged at the bottom of the electric control box; an auxiliary counter weight block is arranged at the bottom of the electric control box and beside the two storage batteries; a charger is fixed on the storage batteries; a motor speed controller is arranged in the electrical control box beside the charger; a charger power socket is arranged on a side of the electrical control box and electrically connected with the charger; and a power-source emergency stop switch and a coulomb meter are arranged at the top of the electrical control box. The electric drawing vehicle has the advantages of small volume, great strength, flexible steering, convenience in operation and wide application range.
Description
Technical field
The utility model relates to tractor truck, relates in particular to a kind of steady formula electrically propelled traction vehicle.
Background technology
At present, 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, the wheel steering system, integral structure is complicated, volume is big, manufacturing cost 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 steady formula electrically propelled traction vehicle, can be used as industries such as airport, station, postal service, market, logistics industrial enterprise.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 steady formula 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 frame is provided with the counterweight permanent seat, be fixed with main clump weight on the described counterweight permanent seat, described frame rear end also is fixed with electric control box, described cardan wheel is fixed in electrical control lower box part rear end, it is two storage batterys of upper and lower settings that described electric power provides equipment, described two storage batterys are located at the electric control box bottom, described electric control box bottom also is provided with secondary clump weight, described secondary clump weight places two storage battery next doors, storage battery top above described is fixed with charger, be provided with electric motor speed controller in the electric control box on described charger side, described electric control box side is provided with the charger battery socket, described charger battery socket is electrically connected with charger, and described electrical control box top is provided with power supply emergency stop switch and electricity meter.
Described counterweight permanent seat comprises counterweight adapter plate and frame upper boom, and described main clump weight comprises counterweight handle and balance weight body, described balance weight body be provided with counterweight adapter plate and frame on the suitable clump weight groove of rod-shape.
Be fixedly connected with the hitcher control lever on the described 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 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 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 comprises that also an arm housing and a permanent seat, the end of described left half axle and right axle shaft place respectively in the permanent seat of an arm housing both sides, and described arm housing is split-type structural with gear box casing, and described arm housing is fixed in bottom the gear box casing.
The utility model has the advantages that: volume is little, strength is big, turn to flexible, simple operation, 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 the utility model overall diagram.
Fig. 3 is the structural representation of the utility model traction hitcher.
Fig. 4 is the structural representation of the utility model drive axle.
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, bearing pin B, 48, the hitcher control lever, 49, the counterweight permanent seat, 50, main clump weight, 51, electric control box, 52, storage battery, 53, secondary clump weight, 54, the charger battery socket, 55, the power supply emergency stop switch, 56, electricity meter, 57, the counterweight adapter plate, 58, the counterweight handle, 59, balance weight body, 60, the clump weight groove, 61, charger, 62, gear box casing.
The specific embodiment
Shown in Fig. 1 to 4, a kind of steady formula 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, 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 B47, 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 B47 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, frame 1 is provided with counterweight permanent seat 49, be fixed with main clump weight 50 on the counterweight permanent seat 49, frame 1 rear end also is fixed with electric control box 51, cardan wheel 8 is fixed in rear end, electric control box 51 bottom, it is two storage batterys 52 of upper and lower settings that electric power provides equipment, two storage batterys 52 are located at electric control box 51 bottoms, electric control box 51 bottoms also are provided with secondary clump weight 53, secondary clump weight 53 places two storage battery 52 next doors, top storage battery 52 tops are fixed with charger 61, be provided with electric motor speed controller 7 in the electric control box 51 on charger 61 sides, electric control box 51 sides are provided with charger battery socket 54, charger battery socket 54 is electrically connected with charger 61, and electric control box 51 tops are provided with power supply emergency stop switch 55 and electricity meter 56.Counterweight permanent seat 49 comprises counterweight adapter plate 57 and frame upper boom 10, and main clump weight 50 comprises counterweight handle 58 and balance weight body 59, and balance weight body 59 is provided with and counterweight adapter plate 57 and the suitable clump weight groove 60 of frame upper boom 10 shapes.Be fixedly connected with hitcher control lever 48 on the extension spring fixed link B26,
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, the end of left half axle 13 and right axle shaft 14 places respectively in the permanent seat 45 of arm housing 44 both sides, propping up arm housing 44 is split-type structural with gear box casing 62, and an arm housing 44 is fixed in gear box casing 62 bottoms.
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 A21, 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 B47, 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 62 of the present utility model is designed to split formula structure 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 two storage batterys 52 and is supplied with DC machine 4 drive drive axles 5, at last power and moment of torsion are passed to solid rubber tire as road wheel 9, realize the driving walking of machine, cardan wheel 8 is fixed in rear end, electric control box 51 bottom, the function that plays the balance support machine and turn flexibly, main clump weight 50, secondary clump weight 53 is installed on the counterweight permanent seat 49 of frame 1 respectively and electric control box 51 bottoms, play equilibrium activity, rubber tire skids when preventing the machine starting, traction hitcher 2 is assemblied on frame 1 front side, can articulate a little height up-down adjustment according to the traction thing, effectively hook is pulled thing, postpone before the hitcher control lever 48 to draw and realize swinging up and down of hitcher, make swimmingly by the hook object in the road surface of injustice smooth transport, by two storage batterys 52, DC machine 4, electric motor speed controller 7, charger 61, power supply emergency stop switch 55, electricity meter 56 and charger battery socket 54 etc. are formed electric control system, just can realize motor, counter-rotating, stepless change, suddenly stop oppositely, electric weight shows, functions such as buzzing caution.
Claims (5)
1. steady formula 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, are fixed with extension spring fixed link B on the described hitcher body, are fixed with extension spring between described extension spring fixed link A and the extension spring fixed link B, it is characterized in that
Described frame is provided with the counterweight permanent seat, be fixed with main clump weight on the described counterweight permanent seat, described frame rear end also is fixed with electric control box, described cardan wheel is fixed in electrical control lower box part rear end, it is two storage batterys of upper and lower settings that described electric power provides equipment, described two storage batterys are located at the electric control box bottom, described electric control box bottom also is provided with secondary clump weight, described secondary clump weight places two storage battery next doors, storage battery top above described is fixed with charger, be provided with electric motor speed controller in the electric control box on described charger side, described electric control box side is provided with the charger battery socket, described charger battery socket is electrically connected with charger, and described electrical control box top is provided with power supply emergency stop switch and electricity meter.
2. a kind of steady formula electrically propelled traction vehicle according to claim 1, it is characterized in that, described counterweight permanent seat comprises counterweight adapter plate and frame upper boom, described main clump weight comprises counterweight handle and balance weight body, described balance weight body be provided with counterweight adapter plate and frame on the suitable clump weight groove of rod-shape.
3. a kind of steady formula electrically propelled traction vehicle according to claim 1, it is characterized in that, be fixedly connected with the hitcher control lever on the described 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.
4. electric tractor truck according to claim 3 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.
5. a kind of steady formula electrically propelled traction vehicle according to claim 1, it is characterized in that, 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, described sun wheel A and left half axle, sun wheel B is spline with right axle shaft and is connected; Described drive axle comprises that also an arm housing and a permanent seat, the end of described left half axle and right axle shaft place respectively in the permanent seat of an arm housing both sides, and described arm housing is split-type structural with gear box casing, and described arm housing is fixed in bottom the gear box casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202935434U CN201769929U (en) | 2010-08-17 | 2010-08-17 | Rest type electric drawing vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202935434U CN201769929U (en) | 2010-08-17 | 2010-08-17 | Rest type electric drawing vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201769929U true CN201769929U (en) | 2011-03-23 |
Family
ID=43749765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202935434U Expired - Lifetime CN201769929U (en) | 2010-08-17 | 2010-08-17 | Rest type electric drawing vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201769929U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320304A (en) * | 2011-05-29 | 2012-01-18 | 长城汽车股份有限公司 | Self-propelled storage battery tractor |
| CN105346610A (en) * | 2015-11-27 | 2016-02-24 | 苏州先锋物流装备科技有限公司 | Stand driving type motor tractor with adjustable backrest |
| CN106740903A (en) * | 2016-12-28 | 2017-05-31 | 山东华车能源科技有限公司 | High-power low-speed storage battery tractor Mechatronic control system |
| CN108909855A (en) * | 2018-08-08 | 2018-11-30 | 启东大同电机有限公司 | Hydraulic hitcher type electrically propelled traction vehicle |
-
2010
- 2010-08-17 CN CN2010202935434U patent/CN201769929U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320304A (en) * | 2011-05-29 | 2012-01-18 | 长城汽车股份有限公司 | Self-propelled storage battery tractor |
| CN102320304B (en) * | 2011-05-29 | 2013-10-30 | 长城汽车股份有限公司 | Self-propelled storage battery tractor |
| CN105346610A (en) * | 2015-11-27 | 2016-02-24 | 苏州先锋物流装备科技有限公司 | Stand driving type motor tractor with adjustable backrest |
| CN106740903A (en) * | 2016-12-28 | 2017-05-31 | 山东华车能源科技有限公司 | High-power low-speed storage battery tractor Mechatronic control system |
| CN108909855A (en) * | 2018-08-08 | 2018-11-30 | 启东大同电机有限公司 | Hydraulic hitcher type electrically propelled traction vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |
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| CX01 | Expiry of patent term |