CN207433177U - A kind of freight electric vehicle rear wheel damping device - Google Patents
A kind of freight electric vehicle rear wheel damping device Download PDFInfo
- Publication number
- CN207433177U CN207433177U CN201721523771.4U CN201721523771U CN207433177U CN 207433177 U CN207433177 U CN 207433177U CN 201721523771 U CN201721523771 U CN 201721523771U CN 207433177 U CN207433177 U CN 207433177U
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- China
- Prior art keywords
- shock
- damper
- absorbing sleeve
- vehicle frame
- damping device
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Abstract
The utility model provides a kind of freight electric vehicle rear wheel damping device, including vehicle frame and the post-suspension structure for being arranged on vehicle frame rear portion, vehicle frame is frame structure, post-suspension structure includes damper, first rear axle, and second rear axle, damper is arc-shaped structure, arc top is connected to two curb girder bottoms of vehicle frame by Shock-proof bolt, damper both ends respectively with the first rear axle and the second rear-axle hinging, Shock-proof bolt includes bolt successively from top to bottom, gasket, shock-absorbing sleeve, and nut, shock-absorbing sleeve internal diameter is more than the screw diameter of bolt, the shock-absorbing sleeve is made of elastic material.The beneficial effects of the utility model are：Using shock damper structure, damper can also have damping effect with road surface condition variation under unloaded situation；Damper prevents wheel from making somebody a mere figurehead, the earth-grasping force of electric car is stronger with road surface condition variation；Increase shock-absorbing sleeve at articulated connection, reduce noise, extend connector service life.
Description
Technical field
The utility model is related to vehicle technology fields, particularly relate to a kind of freight electric vehicle rear wheel damping device.
Background technology
Electric car is the vehicle that the energy is used as using electricity, compares that automobile is more energy efficient environmentally friendly, of low cost, and electric car is developed to
The present, species is more various, and freight electric vehicle either local delivery is still ridden instead of walk, has all become present indispensable traffic work
Tool.
Freight electric vehicle currently on the market, rear portion are mostly single wheels, and such car body stability is very poor, and cargo loads one
Denier is partially heavy, and front end is easily tilted, and causes personnel hazard, and damping uses fixed arc-shaped steel after existing freight electric vehicle
Flat spring, arc top are fixed on hind axle, and both ends are fixed on vehicle frame, are equivalent to and are only provided damping effect by the elasticity of steel plate,
Rear portion can not provide damping effect during electric car zero load, and full load damping effect is also very poor, and sense of jolting on bad road surface is strong
Strong, comfort is very poor, and easily causes the damage for transporting cargo.
Utility model content
The utility model is based at least one above-mentioned technical problem, it is proposed that a kind of better shipping electricity of damping effect
Motor-car rear wheel damping device, what the technical solution of the utility model was realized in：
A kind of freight electric vehicle rear wheel damping device, including vehicle frame and the post-suspension structure for being arranged on the vehicle frame rear portion,
The vehicle frame is hollow frame structure, and the post-suspension structure includes damper, the first rear axle and the second rear axle, described to subtract
Shake device is arc-shaped structure, and arc top is connected on the vehicle frame, both ends respectively with the first rear axle and the second rear-axle hinging；
The arc top of the damper is connected with car frame side beam by Shock-proof bolt, the Shock-proof bolt include bolt, gasket,
Shock-absorbing sleeve, limiting plate and nut, the car frame side beam on the limiting plate with being equipped with mounting hole, described shock-absorbing sleeve one end
If baffle ring, the installation bore dia is adapted with shock-absorbing sleeve, and the bolt screw rod sequentially passes through gasket, baffle ring, mounting hole, damping
Set, limiting plate and damper, are then fixed by nut.
The freight electric vehicle rear wheel damping device, the damper are arranged to two, two damper difference
It is connected to described two curb girder bottoms of vehicle frame.
The freight electric vehicle rear wheel damping device, if the damper is consolidated by the alloy-steel plate of the wide Length discrepancy of dry plate
Fixed connection composition.
The freight electric vehicle rear wheel damping device, which is characterized in that the damper is set with rear-axle hinging junction
Shock-absorbing sleeve is equipped with, the shock-absorbing sleeve is made of elastic material.
The beneficial effects of the utility model are：1. double trailing wheel and bi-motor, power is big, and stability is more preferable；2. using new
Type shock absorber structure, damper can also have damping effect with road surface condition variation under unloaded situation；3. damper is with pavement behavior
Variation, prevents wheel from making somebody a mere figurehead, the earth-grasping force of electric car is stronger；4. increasing shock-absorbing sleeve at articulated connection, reduce noise, extend connection
Part service life.
Description of the drawings
It, below will be to attached drawing needed in description in order to illustrate more clearly of the technical solution in the utility model
It is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the top view of the utility model；
Damper and positioning device structure schematic diagram when Fig. 3 is electric car zero load；
Damper and positioning device structure schematic diagram when Fig. 4 loads for electric car；
Fig. 5 is Shock-proof bolt structure diagram；
Fig. 6 is damper operation principle schematic diagram（First rear axle has obstacle）；
Fig. 7 is damper operation principle schematic diagram（Second rear axle has obstacle）；
Fig. 8 is articulated structure schematic diagram；
In figure：1 is vehicle frame；2 be damper；3 be the first rear axle；4 be the second rear axle；5 be stabiliser bar；6 be longitudinal tie；7
It is limiting plate；8 be shock-absorbing sleeve.
Specific embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the case where there is no conflict, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
New to be implemented using other different from other modes described here, therefore, the scope of protection of the utility model is simultaneously
From the limitation of following public specific embodiment.
As shown in Figure 1 and Figure 2, the freight electric vehicle rear wheel damping device of the utility model, including vehicle frame 1, vehicle frame is integrally
The steelframe of hollow frame structure, the front lower portion of vehicle frame 1 are provided with front overhang hanging hang structure（Attached drawing is not shown）, front overhang hanging hang structure bag
Front-wheel and transfer are included, transfer is connected with being arranged on the handlebar of vehicle frame upper front end, and driver is by controlling handlebar control
Electric vehicle rotary processed to.
Post-suspension structure is arranged on 1 rear end lower of vehicle frame, after post-suspension structure includes damper 2, the first rear axle 3, second
Bridge 4 and positioner, damper 2 is the leaf spring of circular shape, if being fixed by the alloy-steel plate of the wide Length discrepancy of dry plate
Connection composition, 1 two curb girder bottoms of vehicle frame are each provided with a damper 2, and 2 arc top position of damper is connected to vehicle frame 1 two
Curb girder bottom, the both ends of damper 2 are hinged with the first rear axle 3 and the second rear axle 4 respectively.Positioner includes stabiliser bar 5 and indulges
Pull rod 6, stabiliser bar 5 traverse vehicle frame 1 and are fixed on vehicle frame 1, and stabiliser bar 5 is used for balancing vehicle body, and it is excessive to prevent that vehicle body from occurring
It laterally rolls, stabiliser bar both ends connect two longitudinal ties 6 respectively, and two 6 one end of longitudinal tie are hinged on stabiliser bar 5, the other end
Respectively with two rear-axle hingings, positioner is used for connecting and positioning two rear axles, prevents two rear axles in pressure or road conditions
De- axis or off-axis under variation.
As shown in Figure 3, Figure 4, under electric vehicle loading state, 2 stress of damper of circular shape deforms upon, and vehicle frame 1 drops
Low to be approached with rear axle, distance becomes larger between two rear axles, and the angle between the longitudinal tie 6 of positioner becomes larger therewith.Traditional electric car
In rear axle structure, 2 arc top of damper is fixed on hind axle, and both ends are connected on vehicle frame 1, when vehicle frame 1 is subject to vertical load, are subtracted
2 both ends of shake device are persistently subject to the pressure of vehicle frame 1, and 2 internal stress of damper increases, and not only shorten 2 service life of damper, and
Damping effect is very undesirable, the freight electric vehicle rear wheel damping device of the application, and 2 arc top of damper is set to be connected with vehicle frame 1,
Both ends and two rear-axle hingings, not only connect two rear axles, but also when vehicle frame 1 is subject to vertical load, damper 2 occurs simultaneously
Deformation, distance becomes larger between two rear axles, eliminates 2 part internal stress of damper, improves damping effect, extends damper 2 and uses
Service life.
As shown in figure 5, the arc top of damper 2 is connected with 1 curb girder of vehicle frame by Shock-proof bolt, the Shock-proof bolt from up to
Under include bolt, gasket, shock-absorbing sleeve 8, limiting plate 7 and nut successively, be equipped with installation on 1 curb girder of vehicle frame and limiting plate 7
Hole, 8 one end of shock-absorbing sleeve are equipped with baffle ring, and installation bore dia is adapted with shock-absorbing sleeve, and bolt screw rod sequentially passes through gasket, baffle ring, peace
Hole, shock-absorbing sleeve 8, limiting plate 7 and damper are filled, is then fixed by nut, the internal diameter of shock-absorbing sleeve 8 is straight slightly larger than bolt screw rod
Footpath can make damper have certain activity space.
Preferably, shock-absorbing sleeve 8 is made of high abrasions, the materials of high resilience such as polyurethane resin or rubber.
As shown in Figure 6, Figure 7, two rear axle height are not in same level, the damping spiral shell of 2 arc top junction of damper
Elastic deformation occurs for bolt lateral compression shock-absorbing sleeve 8, shock-absorbing sleeve 8, and damper 2 tilts, under road conditions of jolting, the damping of electric car both sides
Device 2 constantly adjusts wheel position therewith, can effectively prevent the propagated sensation that jolts on road surface from entering vehicle body, cargo is avoided to jolt, is increased simultaneously
Comfort and stability, and increase the earth-grasping force of wheel.
Preferably, shock-absorbing sleeve 8 is both provided at articulated connection（If longitudinal tie 6 and 5 hinged place of stabiliser bar, longitudinal tie 6 are with after
At bridge hinged place, damper 2 and rear-axle hinging）, as shown in figure 8, structure includes bolt, U-type groove, subtracts at above-mentioned articulated connection
Shake set 8, shock-absorbing sleeve 8 is two, is separately positioned on connector both ends, bolt screw rod sequentially pass through gasket, U-type groove, shock-absorbing sleeve 8,
Then connector is fixed by nut, shock-absorbing sleeve 8 is made of high abrasions, the materials of high resilience such as polyurethane resin or rubber,
Noise can not only be reduced, but also prevent active connection from wearing, while increase connector elasticity, and shock-absorbing sleeve 8 compares axis
Bearing structure is simple, at low cost, and it is convenient to replace, and is suitble to electric vehicle chassis application.
Preferably, differential mechanism and motor are respectively arranged on the first rear axle 3 and the second rear axle 4, motor is electrically connected with accumulator
It connects, dual-motor electric vehicle power is big, cargo dead-weight is high.
The technical solution of the utility model is described in detail above in association with attached drawing, the technical solution of the utility model proposes
A kind of new freight electric vehicle rear wheel damping device, this programme use double trailing wheel and bi-motor structure, power is big, cargo dead-weight more
Height, stability are more preferable；Using shock damper structure, damper can also have very under unloaded situation with the autonomous regulating wheel condition of road conditions
Good damping effect, and shock absorber structure design is reasonable, and damper internal stress is small under loading state, and damping effect is more preferable, grabs
Soil fertility is strong, and smooth ride is comfortable, increases elastic shock attenuation set at articulated connection, and vehicle traveling noise is small, and service life is long, is suitble to goods
Fortune electric car is promoted the use of.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of freight electric vehicle rear wheel damping device, which is characterized in that including vehicle frame and after being arranged on the vehicle frame rear portion
Suspended structure, the vehicle frame is hollow frame structure, after the post-suspension structure includes damper, the first rear axle and second
Bridge, the damper are arc-shaped structure, and arc top is connected on the vehicle frame, both ends respectively with the first rear axle and the second rear axle
It is hinged；
The arc top of the damper is connected with car frame side beam by Shock-proof bolt, and the Shock-proof bolt includes bolt, gasket, damping
Set, limiting plate and nut, for the car frame side beam with being equipped with mounting hole on the limiting plate, described shock-absorbing sleeve one end sets gear
Circle, it is described installation bore dia be adapted with shock-absorbing sleeve, the bolt screw rod sequentially pass through gasket, baffle ring, mounting hole, shock-absorbing sleeve,
Limiting plate and damper, are then fixed by nut.
2. freight electric vehicle rear wheel damping device according to claim 1, which is characterized in that the damper is arranged to two
A, two dampers are connected to described two curb girder bottoms of vehicle frame.
3. freight electric vehicle rear wheel damping device according to claim 1 or 2, which is characterized in that if the damper by
The alloy-steel plate of the wide Length discrepancy of dry plate is composed of a fixed connection.
4. freight electric vehicle rear wheel damping device according to claim 1, which is characterized in that the damper is cut with scissors with rear axle
It connects junction and is provided with shock-absorbing sleeve, the shock-absorbing sleeve is made of elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721523771.4U CN207433177U (en) | 2017-11-15 | 2017-11-15 | A kind of freight electric vehicle rear wheel damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721523771.4U CN207433177U (en) | 2017-11-15 | 2017-11-15 | A kind of freight electric vehicle rear wheel damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207433177U true CN207433177U (en) | 2018-06-01 |
Family
ID=62289445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721523771.4U Expired - Fee Related CN207433177U (en) | 2017-11-15 | 2017-11-15 | A kind of freight electric vehicle rear wheel damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207433177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758013A (en) * | 2019-11-12 | 2020-02-07 | 徐州永盛机电有限公司 | Shock attenuation electric motor car rear axle |
-
2017
- 2017-11-15 CN CN201721523771.4U patent/CN207433177U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758013A (en) * | 2019-11-12 | 2020-02-07 | 徐州永盛机电有限公司 | Shock attenuation electric motor car rear axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20181115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |