CN108016287A - Low-floor modular power vehicle bridge - Google Patents
Low-floor modular power vehicle bridge Download PDFInfo
- Publication number
- CN108016287A CN108016287A CN201710849710.5A CN201710849710A CN108016287A CN 108016287 A CN108016287 A CN 108016287A CN 201710849710 A CN201710849710 A CN 201710849710A CN 108016287 A CN108016287 A CN 108016287A
- Authority
- CN
- China
- Prior art keywords
- vehicle bridge
- wheel hub
- machine shaft
- shell
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/002—Axles of the low floor type, e.g. for low-floor city busses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/422—Driving wheels or live axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
A kind of low-floor modular power vehicle bridge, including vehicle bridge, disc type wheel hub motor, wheel hub and wheel rim, vehicle bridge are provided at both ends with disc type wheel hub motor installation position；Disc type wheel hub motor includes shell, motor stator, rotor magnetic pole, rotor rim and machine shaft, shell is installed on the disc type wheel hub motor installation position of vehicle bridge either end, motor stator is fixed on outer casing inner wall, machine shaft is rotatably mounted on shell, rotor rim is mutually fixed with machine shaft, rotor magnetic pole is fixed in rotor rim, and motor stator surrounds rotor rim；The outboard end of wheel hub inner headed face and machine shaft is connected by spline, and periphery is supported on the inner edge of motor housing by two taper roll bearings；Wheel rim is mutually fixed with wheel hub；Brake disc is installed on frame inside and the medial extremity of machine shaft is connected by spline.The low-floor modular power vehicle bridge can improve the life and reliability of motor, reduce floor height.
Description
Technical field
This application involves technical field of vehicle, more particularly to a kind of low-floor modular power vehicle bridge.
Background technology
The transmission system of existing vehicle is installed on vehicle bottom, including：Gearbox, transmission shaft and drive axle, there is biography
The low distinct disadvantage of efficiency of movement, its exemplary value are 0.82~0.85, it is impossible to meet the following energy consumption proposed to vehicle and discharge
It is required that.
More and more using electrically driven (operated) motor bus at present, the vehicle bridge that present electric drive motor bus uses is traditional type mostly
Vehicle bridge carries out motorized transformation.In existing this electric axle structure, machine shaft is usually connected to car by gear reducer
Wheel shaft, the stress of such wheel are primarily transmitted to axletree, and make coupled motor shaft distortion, necessarily reduce motor
Life and reliability.
Moreover, traditional type vehicle bridge has the more transmission parts of number, more transmission parts take larger arrangement space, tightly
Gathering property is poor, causes space occupancy rate very low, not only reduces car inner space, but also increase its floor level.For city electricity
For electric bus etc. has the short-distance vehicle of a large amount of standees, not only need to reduce the time of passenger getting on/off, and
And also provide the facility of passenger getting on/off, in addition reduce floor level can also make it that the center of gravity of passenger is relatively low, starting accelerate or
Preshoot layback can be reduced during braking brake, ride comfort can also be improved.Therefore vehicle low-floor is electric bus
One key character.
How in the electric axle floor height of the life and reliability of motor and reduction vehicle is effectively improved, into
For those skilled in the art's technical problem urgently to be resolved hurrily
The content of the invention
To solve above-mentioned technical problem existing in the prior art, the present invention provides a kind of low-floor Modular electrical motor-car
Bridge, it can be set by the innovative structure of electric axle, effectively improve the life and reliability of motor, while further drop
The floor height of the low vehicle using the electric axle.
For this reason, this application discloses a kind of low-floor modular power vehicle bridge, including：Vehicle bridge, brake, disc type wheel hub electricity
Machine, wheel hub and wheel rim, wherein,
The vehicle bridge is provided at both ends with disc type wheel hub motor installation position；
The disc type wheel hub motor includes：Shell, motor stator, rotor magnetic pole, rotor rim and machine shaft, wherein,
The shell is installed on the disc type wheel hub motor installation position of the vehicle bridge either end, and the motor stator is fixed on described outer
On shell inner wall, the machine shaft is rotatably mounted on the shell, and the rotor rim is mutually solid with the machine shaft
Fixed, the rotor magnetic pole is fixed in the rotor rim, and the motor stator surrounds the rotor rim；
The wheel hub inner headed face is connected with the outboard end of the machine shaft by spline, and the periphery of the wheel hub passes through
Two taper roll bearings are supported on the inner edge of the shell；
The wheel rim is mutually fixed with the wheel hub.
Alternatively, further include：Brake chamber, pneumatic actuator, brake caliper and brake disc, wherein,
The brake chamber memory contains gases at high pressure；
The brake disc and the medial extremity of the machine shaft are mutually fixed；
The pneumatic actuator is installed in the vehicle bridge, and the brake caliper is opposite with the position of the brake disc
Should, and be separated between the brake caliper and the brake disc；
The pneumatic actuator is connected with the brake caliper；The brake chamber passes through gas path pipe and the gas
Dynamic executing agency is connected, pneumatic actuator described in the drive of high-pressure gas in the brake chamber, the pneumatic execution machine
The frictional force of the structure promotion brake caliper extruding brake disc, the brake disc and the brake caliper will be with the brake disc phase
The machine shaft of connection slows down.
Alternatively, the disc type wheel hub motor installation position is the multiple threaded holes being arranged in the vehicle bridge, and described more
A threaded hole distribution arranged in a ring；
It is provided with the shell and the vehicle bridge upper screwed hole position multiple threaded holes correspondingly；
The shell is fixed on the disc type wheel hub motor installation position by bolt and threaded hole.
Alternatively, the first mounting hole and the second mounting hole are provided with the shell, wherein,
First mounting hole is close to the vehicle bridge, and second mounting hole is close to the wheel hub；
It is rotatablely connected between the machine shaft and first mounting hole by single-row ball-bearing；The wheel hub with it is described
It is rotatablely connected between second mounting hole by two taper roll bearings.
Alternatively, the wheel rim is internally provided with cavity；
The wheel hub is installed on an end face of the cavity, and the wheel rim and the wheel hub cooperatively form the peace of indent
Fill space；
The machine shaft is connected through the installation space with the wheel hub by spline；
The disc type hub motor shell is located in the installation space, and the outer wall of the shell and the installation space
Inner wall between there is gap.
Alternatively, the machine shaft is mutually fixed by the first spline and the wheel hub；
The stage casing both ends that the machine shaft is located in the shell portion are respectively arranged with a second narrow spline；
The machine shaft is connected by two second splines with the rotor, and in the machine shaft
There is larger gap between part and rotor between the second spline of section.
Alternatively, the either end of the vehicle bridge further includes a damper installation cantilever, wherein,
One end of the damper installation cantilever is fixed on the leading flank of the vehicle bridge, is provided with and subtracts on the end of the other end
Shake device bearing；
Damper installation position is provided with the absorber seat, for mounting dampers；
Two damper installation cantilevers are fixed in the vehicle bridge, and two damper installation cantilever difference positions
In the front portion of the machine shaft axis.
Alternatively, the both ends of the vehicle bridge respectively further comprise a longitudinal tie, wherein,
Two longitudinal ties are symmetrical in the vehicle bridge；
The first end of the longitudinal tie is installed on the leading flank of the vehicle bridge, and the position of the first end of the longitudinal tie is leaned on
The nearly disc type wheel hub motor position；
The longitudinal tie and the side of the vehicle bridge are perpendicular；
The second end of the longitudinal tie is provided with fixed bit, for mutually being fixed with vehicle frame.
Alternatively, the first brace and the second brace are further included, wherein,
One end of first brace and one end of the second brace are installed in the leading flank centre bit of the vehicle bridge
Put；
The V-shaped distribution of first brace and the second brace；
The other end of first brace and the other end of the second brace are both provided with fixed bit, for consolidating with vehicle frame
It is fixed.
Low-floor modular power vehicle bridge that the application provides, since the shell of disc type wheel hub motor is directly installed on car
On the disc type wheel hub motor installation position of bridge main body, machine shaft is rotatably mounted on shell, and wheel hub inner headed face turns with motor
The outboard end of axis is connected by spline, and periphery is supported on the inner edge of the shell of motor by two taper roll bearings；Wheel rim
Mutually fixed with wheel hub, therefore utilize said structure, the motor stator of disc type wheel hub motor, rotor magnetic pole, rotor rim phase interaction
With lower so that machine shaft rotates, so as to drive the hub rotation that machine shaft is connected to by spline, and and then drive and fix
Rotated in the wheel rim of wheel hub, the final vehicle wheel rotation caused on wheel rim, realize the traveling of vehicle.In this structure, electricity
Machine shaft and axletree separate, and the stress of wheel is primarily transmitted to the shell and vehicle bridge main body of disc type wheel hub motor, only few
The stress of the wheel of amount passes to machine shaft, thus can improve the life and reliability of motor.
In addition, the low-floor modular power vehicle bridge that the application provides, since the shell of disc type wheel hub motor is directly pacified
In vehicle bridge main body, the machine shaft of disc type wheel hub motor is directly connected by spline with wheel hub, with driving and wheel hub phase
The wheel rim of connection rotates, and this kind of drive directly utilizes machine shaft tire on the drive wheels, without installing the transmission of traditional type vehicle bridge
Component, reduces power transmission process and power transmission member the space occupied, so the vehicle bridge whole height can reduce, into
And to reduce using the floor height of the vehicle of the vehicle bridge.Floor height reduces, it is possible to reduce passenger getting on/off
Time so that passenger getting on/off is more convenient.The reduction of floor height, it is also possible that the center of gravity of passenger reduces,
Preshoot layback can be reduced when vehicle start acceleration or braking brake, improves comfort by bus.
Further, since the power part of transmission is eliminated, so, transmission efficiency can also be improved, reduces energy loss.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
, below will be to embodiment or the back of the body in order to illustrate more clearly of the technical solution in the embodiment of the present application or background technology
Attached drawing is briefly described needed in the description of scape technology, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of overlooking the structure diagram for low-floor modular power vehicle bridge that the application provides；
Fig. 2 is a kind of rearview for low-floor modular power vehicle bridge that the application provides；
Fig. 3 is a kind of partial schematic sectional view for low-floor modular power vehicle bridge that the application provides.
Embodiment
It is in order to make those skilled in the art better understand the technical solutions in the application, real below in conjunction with the application
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is only the part of the embodiment of the application, instead of all the embodiments.It is general based on the embodiment in the application, this area
Logical technical staff all other embodiments obtained without making creative work, should all belong to the application guarantor
The scope of shield.
Fig. 1 is a kind of overlooking the structure diagram of low-floor modular power vehicle bridge provided by the embodiments of the present application.Fig. 2 is
A kind of rearview of low-floor modular power vehicle bridge provided by the embodiments of the present application.Fig. 3 is provided by the embodiments of the present application one
The partial schematic sectional view of kind low-floor modular power vehicle bridge.
As shown in Figure 1, Figure 2 and Figure 3, which includes：Disc type wheel hub motor 1, brake, car
Bridge 10, wheel hub 20 and wheel rim 13, the connection relation of each several part is referring to described below.
10 both ends of vehicle bridge are both provided with motor installation position.
Disc type wheel hub motor 1 includes：Shell 14, motor stator 16, rotor rim 15, rotor magnetic pole 17 and machine shaft
19, wherein, shell 14 is installed on the motor installation position of 10 either end of vehicle bridge, and the motor stator 16 is solid by clamping
Determine mode to be fixed on 14 inner wall of shell, the rotor rim is mutually fixed with machine shaft, and the rotor of motor internal
15 both ends of yoke are respectively provided with a single-row bearing 22, for supporting rotor rim 15 and reducing its pivoting friction；The rotor magnetic
Pole 17 is fixed in the rotor rim 15, and the motor stator 16 surrounds the rotor rim 15.
In order to facilitate the dismounting of disc type wheel hub motor, in the embodiment of the present application, shell 14 is fixed by removably
On motor installation position.
20 inner headed face of wheel hub is connected with the outboard end of machine shaft 19 by spline.For machine shaft 19, it is leaned on
One end of nearly vehicle bridge 10 is medial extremity, and one end away from vehicle bridge 10 is outboard end.
Wheel rim 13 is fixed with 20 phase of wheel hub.In addition, the axis of the machine shaft, the wheel hub and the wheel rim is mutually overlapping
Close.
In the embodiment of the present application, common wheel 2 can be installed, so the wheel rim of 10 both sides of vehicle bridge is respectively on wheel rim 13
One.
Low-floor modular power vehicle bridge provided by the embodiments of the present application, since the shell of disc type wheel hub motor is directly pacified
On the disc type wheel hub motor installation position of vehicle bridge main body, machine shaft is rotatably mounted on shell, wheel hub inner headed face with
The outboard end of machine shaft is connected by spline, and periphery is supported in the shell of motor by two taper roll bearings
Edge；Wheel rim is mutually fixed with wheel hub, therefore utilizes said structure, the motor stator of disc type wheel hub motor, rotor magnetic pole, rotor rim
Interaction is lower to cause machine shaft to rotate, so that the hub rotation that machine shaft is connected to by spline is driven, and and then band
The dynamic wheel rim for being fixed on wheel hub rotates, the final vehicle wheel rotation caused on wheel rim, realizes the traveling of vehicle.In this structure
In, machine shaft is separated with axletree, the stress of wheel is primarily transmitted to the shell and vehicle bridge main body of disc type wheel hub motor, only
The stress for having a small amount of wheel passes to machine shaft, thus can improve the life and reliability of motor.
In addition, the low-floor modular power vehicle bridge provided by the embodiments of the present application, due to the shell of disc type wheel hub motor
Be directly installed in vehicle bridge main body, the machine shaft of disc type wheel hub motor is directly connected by spline with wheel hub, with driving with
The wheel rim that wheel hub is connected rotates, and this kind of drive directly utilizes machine shaft tire on the drive wheels, without installing traditional type vehicle bridge
Transmission parts, reduce power transmission process and power transmission member the space occupied, so the vehicle bridge whole height can be with
Reduce, so that being reduced using the floor height of the vehicle of the vehicle bridge.Floor height reduces, it is possible to reduce passenger
The time got on or off the bus so that passenger getting on/off is more convenient.The reduction of floor height, it is also possible that the center of gravity drop of passenger
It is low, preshoot layback can be reduced in vehicle start acceleration or braking brake, improves comfort by bus.
Further, since the power part of transmission is eliminated, so, transmission efficiency can also be improved, reduces energy loss.
In the application one embodiment, which can also include：It is brake chamber 8, pneumatic
Executing agency 7, brake caliper (not shown) and brake disc 23.
In the embodiment of the present application, brake disc 23 and the medial extremity of machine shaft 19 are fixed by 12 phase of flange, pass through limit
The rotation of brake disc 23 processed, can be with the rotating speed of limiting motor shaft 19, and then starts braking action.Brake disc 23 is generally using resistance to
Mill material is made, to improve the braking service life.
Brake caliper is installed in the vehicle bridge, corresponding with the position of the brake disc, and between the brake disc
With gap.So when brake caliper extrudes brake disc, frictional force can be produced between the two, and as extruding dynamics increases
Add, the frictional force of generation is also bigger.Due to that will not be rotated between brake caliper and vehicle bridge, so frictional force can cause brake disc to turn
Prompt drop is low, and then drives machine shaft rotating speed to reduce, to realize the purpose of brake.
In the embodiment of the present application, as shown in Fig. 2, brake chamber is installed on the top of brake disc, and in brake chamber
Gases at high pressure are stored with, pneumatic actuator is connected with brake caliper, and in the embodiment of the present application, brake chamber passes through gas circuit
Pipeline performs structure with the pneumatic motor and is connected, pneumatic actuator described in the drive of high-pressure gas in the brake chamber, institute
Stating pneumatic actuator promotes brake caliper to extrude the brake disc, and the frictional force of the brake disc and the brake caliper will be with
The machine shaft that the brake disc is connected slows down.
In the application one embodiment, motor installation position is the multiple threaded holes being arranged on the vehicle bridge side, and
The multiple threaded hole distribution arranged in a ring；It is provided with the shell one-to-one with the vehicle bridge upper screwed hole position
Multiple threaded holes；The shell is fixed on the motor installation position by bolt 21 and threaded hole.
The first mounting hole and the second mounting hole are provided with the application one embodiment, on shell, wherein, described first
Mounting hole is close to the vehicle bridge, and second mounting hole is close to the wheel hub；The machine shaft and first mounting hole it
Between be rotatablely connected by single-row ball-bearing 22, single-row ball-bearing 22 be used for support rotor and its rotation.The wheel hub and described the
It is rotatablely connected between two mounting holes by two taper roll bearings 18.Will when the vertical load on wheel is delivered to wheel rim 13
Moment loading is produced, this torque will act on wheel hub 20, and by two taper roll bearings 18 in outside by power and torque
Shell 14 is passed to, 19 outside stress of machine shaft will be obviously reduced at this time, and inner side fills a single-row ball-bearing 22, with two circles
Taper roller bearing can ensure the accurate rotation of machine shaft 19.To prevent machine shaft 19 from occurring deforming to disk when being subject to moment of flexure
The work of formula wheel hub motor brings hidden danger, and the middle part spline of machine shaft 19 is divided into two sections of narrower parts, on the one hand ensures
The transmission of moment of torsion, on the other hand can also offset the slight flexural deformation of machine shaft 19.
In the application one embodiment, as shown in figure 3, wheel rim is internally provided with cavity；The wheel hub is installed on described
On one end face of cavity, the wheel rim and the wheel hub cooperatively form the installation space of indent；The machine shaft passes through institute
Installation space is stated mutually to fix with the wheel hub；The disc type hub motor shell is located in the installation space, and the shell
Outer wall and the installation space inner wall between there is gap.
In the application one embodiment, machine shaft is mutually fixed by the first spline and the wheel hub；The motor turns
Axle position is respectively arranged with a second narrower spline in the both ends of the enclosure；The machine shaft passes through two institutes
State the second spline with the rotor to be connected, and there is gap between the machine shaft and rotor, this gap can
Allow disc type wheel hub motor internal shaft 19 small deformation occur and do not interfere with disc type wheel hub motor normal work.
In the application one embodiment, the either end of the vehicle bridge further includes a damper installation cantilever 3.In reality
In the application of border, a damper installation cantilever 3, and the damper peace that vehicle bridge both ends are installed respectively are installed in the both ends of vehicle bridge
It is symmetrical to fill cantilever 3.
One end of the damper installation cantilever 3 is fixed on the vehicle bridge leading flank, is provided with the end of the other end
Absorber seat 4；Damper installation position is provided with the absorber seat 4, for mounting dampers.Two dampers
Installation cantilever 3 is fixed in the vehicle bridge, and two damper installation cantilevers 3 are respectively positioned at the machine shaft axis
It is anterior.
Air spring bearing 9 is additionally provided with vehicle bridge, and air spring 11 is set on air spring bearing 9.
In the application one embodiment, the both ends of the vehicle bridge respectively further comprise a longitudinal tie 5, wherein, two institutes
It is symmetrical in the vehicle bridge to state longitudinal tie 5；The first end of the longitudinal tie 5 is installed on the side of the vehicle bridge, and described
The first end of longitudinal tie 5 is located proximate to the disc type wheel hub motor position；The longitudinal tie 5 and vehicle bridge side phase
Vertically；The second end of the longitudinal tie 5 is provided with fixed bit, for mutually being fixed with vehicle frame.
In the application one embodiment, which further includes two braces 6, be specially the first brace and
Second brace, wherein, one end of first brace and one end of the second brace are installed in the side of the vehicle bridge
Center；The V-shaped distribution of first brace and the second brace；The other end and the second oblique pull of first brace
The other end of bar is both provided with fixed bit, for being fixed with vehicle frame.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operate it
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include those
Key element, but also including other elements that are not explicitly listed, or further include as this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in the process, method, article or apparatus that includes the element.
The above is only the embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.A variety of modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (9)
- A kind of 1. low-floor modular power vehicle bridge, it is characterised in that including：Vehicle bridge, brake, disc type wheel hub motor, wheel hub And wheel rim, wherein,The vehicle bridge is provided at both ends with disc type wheel hub motor installation position；The disc type wheel hub motor includes：Shell, motor stator, rotor magnetic pole, rotor rim and machine shaft, wherein, it is described Shell is installed on the disc type wheel hub motor installation position of the vehicle bridge either end, and the motor stator is fixed on the shell On inner wall, the machine shaft is rotatably mounted on the shell, and the rotor rim is mutually fixed with the machine shaft, The rotor magnetic pole is fixed in the rotor rim, and the motor stator surrounds the rotor rim；The inner headed face of the wheel hub is connected with the outboard end of the machine shaft by spline, and the periphery of the wheel hub passes through two A taper roll bearing is supported on the inner edge of the shell；The wheel rim is mutually fixed with the wheel hub.
- 2. low-floor modular power vehicle bridge according to claim 1, it is characterised in that further include brake chamber, pneumatic Executing agency, brake caliper and brake disc, wherein,The brake chamber memory contains gases at high pressure；The brake disc is connected with the medial extremity of the machine shaft by spline；The pneumatic actuator is installed in the vehicle bridge, and the brake caliper is corresponding with the position of the brake disc, And it is separated between the brake caliper and the brake disc；The pneumatic actuator is connected with the brake caliper, and the brake chamber is pneumatically held by gas path pipe with described Row mechanism is connected, and pneumatic actuator described in the drive of high-pressure gas in the brake chamber, the pneumatic actuator pushes away Dynamic brake caliper extrudes the brake disc, and the brake disc will be connected with the frictional force of the brake caliper with the brake disc Machine shaft slow down.
- 3. low-floor modular power vehicle bridge according to claim 1, it is characterised in that the disc type wheel hub motor installation Position is is arranged on multiple threaded holes in the vehicle bridge, and the distribution arranged in a ring of the multiple threaded hole；It is provided with the shell and the multiple threaded holes correspondingly of the screw thread hole site in the vehicle bridge；The shell is fixed on the disc type wheel hub motor installation position by bolt and threaded hole.
- 4. low-floor modular power vehicle bridge according to claim 1, it is characterised in that be provided with first on the shell Mounting hole and the second mounting hole, wherein,First mounting hole is close to the vehicle bridge, and second mounting hole is close to the wheel hub；It is rotatablely connected between the machine shaft and first mounting hole by single-row ball-bearing；The wheel hub and described second It is rotatablely connected between mounting hole by two taper roll bearings.
- 5. low-floor modular power vehicle bridge according to claim 1, it is characterised in that the wheel rim is internally provided with sky Chamber；The wheel hub is installed on an end face of the cavity, and the installation that the wheel rim and the wheel hub cooperatively form indent is empty Between；The machine shaft is connected through the installation space with the wheel hub by spline；The disc type hub motor shell is located in the installation space, and the outer wall of the shell and the installation space is interior There is gap between wall.
- 6. low-floor modular power vehicle bridge according to claim 5, it is characterised in that the machine shaft passes through first Spline is mutually fixed with the wheel hub；The stage casing both ends that the machine shaft is located in the shell portion are respectively arranged with a second narrow spline；The machine shaft is connected by two second splines with the rotor, and the machine shaft stage casing There is larger gap between part and rotor between two splines.
- 7. low-floor modular power vehicle bridge according to claim 1, it is characterised in that the either end of the vehicle bridge is also Cantilever is installed including a damper, wherein,One end of the damper installation cantilever is fixed on the leading flank of the vehicle bridge, and the end of the other end is provided with damper branch Seat；Damper installation position is provided with the absorber seat, for mounting dampers；Two damper installation cantilevers are fixed in the vehicle bridge, and two damper installation cantilevers are located at institute respectively State the front portion of machine shaft axis.
- 8. low-floor modular power vehicle bridge according to claim 1, it is characterised in that also distinguish at the both ends of the vehicle bridge Including a longitudinal tie, wherein,Two longitudinal ties are symmetrical in the vehicle bridge；The first end of the longitudinal tie is installed on the leading flank of the vehicle bridge, and the first end of the longitudinal tie is located proximate to institute State disc type wheel hub motor position；The longitudinal tie and the side of the vehicle bridge are perpendicular；The second end of the longitudinal tie is provided with fixed bit, for mutually being fixed with vehicle frame.
- 9. low-floor modular power vehicle bridge according to claim 1, it is characterised in that further include the first brace and Two braces, wherein,One end of first brace and one end of the second brace are installed in the leading flank center of the vehicle bridge；The V-shaped distribution of first brace and the second brace；The other end of first brace and the other end of the second brace are both provided with fixed bit, for being fixed with vehicle frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710849710.5A CN108016287B (en) | 2017-09-20 | 2017-09-20 | Low-floor modularized electric axle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849710.5A CN108016287B (en) | 2017-09-20 | 2017-09-20 | Low-floor modularized electric axle |
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| CN108016287A true CN108016287A (en) | 2018-05-11 |
| CN108016287B CN108016287B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710849710.5A Active CN108016287B (en) | 2017-09-20 | 2017-09-20 | Low-floor modularized electric axle |
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| US20210061093A1 (en) * | 2018-05-14 | 2021-03-04 | Tsinghua University | Low-floor electric axle assembly |
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