CN208630613U - A kind of rail vehicle power assembly - Google Patents
A kind of rail vehicle power assembly Download PDFInfo
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- CN208630613U CN208630613U CN201821041455.8U CN201821041455U CN208630613U CN 208630613 U CN208630613 U CN 208630613U CN 201821041455 U CN201821041455 U CN 201821041455U CN 208630613 U CN208630613 U CN 208630613U
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- brake strip
- input shaft
- rail vehicle
- power input
- brake
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Abstract
The utility model relates to vehicle power technical fields, a kind of rail vehicle power assembly is provided, including prime mover, retarder and brake strip, retarder includes power input shaft and speed reducer housing, it is sequentially connected between power input shaft and prime mover, and power input shaft connects brake strip, so that power input shaft and brake strip rotate synchronously；Brake strip can with respect to power input shaft axial movement and be fixed on speed reducer housing.The rail vehicle power assembly of the utility model, its power input shaft for passing through brake strip brake retarder, the relationship being rationally provided between dynamic traction device and brake apparatus, and then entire rail vehicle power assembly can be made compact-sized, solve the problems, such as that structure is complicated, huge, less economical for current orbit vehicle separated knot power drive mechanism.
Description
Technical field
The utility model relates to vehicle power technical field more particularly to a kind of rail vehicle power assemblies.
Background technique
World's railway high speed development, particularly in China, rail traffic plays more and more important in the trip of people
Role.Worldwide, various countries, which operate in operation on rail, high-speed rail, subway, general car, traction locomotive, lorry, engineering
Run numerous rail vehicles such as maintenance car.
Rail vehicle wants safe and feasible to run in orbit, undoubtedly be unable to do without hauling power device and brake actuating apparatus this
Two sets of important systems.Wherein, the movement of rail vehicle is by track drawing power device.Specifically, motor prime movers connect
Retarder is connect to drive the wheel of various rail vehicles to movement in orbit after reducing output revolving speed, increasing torque.In addition, conduct
A very important ring in rail traffic, rail vehicle not only want energy safety movement, it is necessary to have one when needing to stop
Reliable braking system is covered, rail vehicle secure parking is promoted.
Referring to Figure 1, which includes a kind of hauling power devices of existing rail vehicle, include wheel 1, axle
2, retarder 3, prime mover 4, power transmission route are as follows: prime mover 4 is connect with retarder 3, to drive retarder 3；Wherein, slow down
The gear of 3 output end of device is fixedly connected with axle 2, so can axle shaft 2 rotate, and vehicle is imparted power to by axle 2
Wheel 1 pushes wheel 1 to travel in orbit.
In addition, rail vehicle braking device is also shown in Fig. 1, including clamping cylinder 5, brake strip 6, brake disc 7,
Wherein clamping cylinder 5 is fixedly connected with brake strip 6, and brake disc 7 is fixedly connected with axle 2.This kind of rail vehicle braking
The mode of device braking is commonly referred to as Multiple disc brake, braking process are as follows: when needing to brake, the driving braking of clamping cylinder 5 rubs
Pad 6 compresses brake disc 7, hinders brake disc 7 to rotate, so that the rotation of wheel 1 is also limited, to make rail vehicle system
It is dynamic；When needing that rail vehicle is driven to move, then brake disc 7 is detached from by tight cylinder 5 driving brake strip 6, releases brake disc 7
Rotation hinders, so that rail vehicle is movable.
Fig. 2 is referred to, which show another rail vehicle braking devices existing in the prior art, in braking,
Brake block 6-2 compresses the tyre tread of wheel 2, to inhibit rail vehicle under the driving of clamping cylinder (being not shown in attached drawing 2)
Movement.It often cooperates with the hauling power device of the rail vehicle provided in Fig. 1.
It is asked existing for the hauling power device and rail vehicle braking device of the rail vehicle mentioned in the prior art above
Topic is:
Driving is independent mutually with braking, so that structure is complicated, huge, less economical.Also, for the track in attached drawing 2
The tyre tread of Vehicular brake device, brake block 6-2 and wheel rubs for a long time, it will the circularity and surface quality for damaging wheel are led
It causes rail vehicle operational shock to increase, reduces wheel life.
Utility model content
The utility model aims to solve at least one of technical problems existing in the prior art or related technologies.
One of purpose of the utility model is: providing a kind of rail vehicle power assembly, solution is deposited in the prior art
Rail vehicle driving and braking it is independent mutually caused by the problem that structure is complicated, huge, less economical.
In order to realize the purpose, the utility model provides a kind of rail vehicle power assembly, including prime mover, retarder
And brake strip, the retarder include power input shaft and speed reducer housing, the power input shaft and the original are dynamic
It is sequentially connected between machine, and the power input shaft connects the brake strip, so that the power input shaft and the system
Movable friction plate rotates synchronously；The brake strip can the relatively described power input shaft axial movement and be fixed on the deceleration
On device shell.
Preferably, the brake strip includes the first brake strip and the second brake strip, first braking
Friction plate and the power input shaft are coaxially disposed；And first brake strip and the power input shaft wherein it
Keyway, another key being provided with keyway cooperation are provided on one；Outside second brake strip and the retarder
Keyway, another key being provided with keyway cooperation are provided on one of shell.
Preferably, the first drag friction on piece is provided with internal spline, be provided on the power input shaft with it is described
The external splines slot of internal spline cooperation；The second drag friction on piece is provided with key teeth, be provided on the speed reducer housing with
The spline of the key teeth cooperation.
Preferably, the brake strip is driven by checking cylinder.
Preferably, the checking cylinder is located at the inside of the speed reducer housing.
Preferably, the checking cylinder is oil cylinder, including outer oil cavity, interior oil pocket and plunger shaft, the outer oil cavity connection first
Hydraulic fluid port, the interior oil pocket connect the second hydraulic fluid port, are provided with piston in the plunger shaft, and the piston is close to the drag friction
One end of piece is connected to the interior oil pocket, and the one end of the piston far from the brake strip is connected to the outer oil cavity；Institute
It states and is additionally provided with any spring in plunger shaft, for applying the power towards the brake strip to the piston.
Preferably, first hydraulic fluid port and second hydraulic fluid port are both formed on the speed reducer housing.
Preferably, the retarder further includes power output shaft, and the power output shaft is connect with axle drive, the vehicle
Axis connection wheel.
The technical solution of the utility model has the advantage that the rail vehicle power assembly of the utility model, passes through
The power input shaft of brake strip brake retarder, the relationship being rationally provided between dynamic traction device and brake apparatus,
And then entire rail vehicle power assembly can be made compact-sized, solve current orbit vehicle separated knot power drive mechanism
The problem that structure is complicated, huge, less economical.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the rail vehicle power assembly of the prior art；
Fig. 2 is the structural schematic diagram of the brake apparatus used on the rail vehicle of the prior art；
Fig. 3 is the structural schematic diagram of the rail vehicle power assembly of embodiment；
Fig. 4 is the partial schematic sectional view of the rail vehicle power assembly of embodiment；
Fig. 5 is the partial enlargement diagram in Fig. 4 at I；
In figure: 1, wheel；2, axle；3, retarder；3-1, speed reducer housing；3-2, the first transmission gear；3-3, power
Input shaft；3-4, power output shaft；3-5, the second transmission gear；3-6, the first brake strip；3-7, the second brake strip；
3-8, piston；3-9, the first hydraulic fluid port；3-10, outer oil cavity；3-11, the second hydraulic fluid port；3-12, interior oil pocket；3-13, spring；4, former dynamic
Machine；5, clamping cylinder；6, brake strip；6-2, brake block；7, brake disc.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second ", " third " are used for description purposes only, and should not be understood as
Indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Refer to Fig. 3 to Fig. 5, the rail vehicle power assembly of the present embodiment, including prime mover 4, retarder 3 and braking
Friction plate, the retarder 3 include power input shaft 3-3 and speed reducer housing 3-1, the power input shaft 3-3 and the original
It is sequentially connected between motivation 4, and power input shaft 3-3 connection brake strip is so that power input shaft 3-3 and drag friction
Piece rotates synchronously；Brake strip axial movement with respect to power input shaft 3-3 and can be fixed on speed reducer housing 3-1.
The rail vehicle power assembly of the present embodiment passes through the power input shaft 3- of brake strip brake retarder 3
3, the relationship being rationally provided between dynamic traction device and brake apparatus, and then entire rail vehicle power assembly can be made
It is compact-sized, solve the problems, such as that structure is complicated, huge, less economical for current orbit vehicle separated knot power drive mechanism.
Wherein, the concrete form of prime mover 4 is unlimited, such as it can use motor, can also be with hydraulic motor or any
Form disclosed in other prior arts.
It being found by Fig. 3 and Fig. 4, the rail vehicle power assembly of the present embodiment, retarder 3 and axle 2 are sequentially connected,
To which prime mover 4 passes motion to axle 2 by retarder 3 with the rotation of axle shaft 2.Wheel 1 is mounted on axle 2, from
And it is rotated under the drive of axle 2.
In Fig. 3 and Fig. 4, retarder 3 further includes dynamic output shaft 3-4 in addition to including power input shaft 3-3.Also,
Power output shaft 3-4 and axle 2 are sequentially connected.Pass through the first transmission gear between power input shaft 3-3 and power output shaft 3-4
3-2 and the second transmission gear 3-5 transmission connection.To which retarder 3 passes through between power input shaft 3-3 and power output shaft 3-4
Transitive relation, the movement of prime mover 4 is passed into axle 2.
Certainly it should be noted that the structure of retarder 3 is not limited by Fig. 3 and Fig. 4, disclosed in any prior art
The structure of retarder 3 can be applied in the rail vehicle power assembly of the application.
In Fig. 5, brake strip includes the first brake strip 3-6 and the second brake strip 3-7, the first drag friction
Piece 3-6 and power input shaft 3-3 is coaxially disposed；And on one of first brake strip 3-6 and power input shaft 3-3
It is provided with keyway, another key being provided with keyway cooperation, i.e. the first brake strip can be axially sliding along power input shaft 3-3
It is dynamic, but the two is relatively unrotatable；It is provided with keyway on one of second brake strip 3-7 and speed reducer housing 3-1,
Another key being provided with keyway cooperation, i.e. the second brake strip can be slided along speed reducer housing 3-1 keyway, but the two
It is relatively unrotatable.
When the first brake strip 3-6 and/or the second brake strip 3-7 is along the axial movement of power input shaft 3-3,
And the first brake strip 3-6 and the second brake strip 3-7 is compressed, and outside the second brake strip 3-7 and retarder
When shell 3-1 is relatively unrotatable, speed reducer housing 3-1 limits the first braking by the second brake strip 3-7 at this time
The rotation of friction plate 3-6.Again since the first brake strip 3-6 and power input shaft 3-3 is rotated synchronously, then when the first braking rubs
When pad 3-6 can not be rotated, then power input shaft 3-3 can not then be rotated.In turn, at this time by brake strip (more than namely
The the first brake strip 3-6 mentioned and the second brake strip 3-7) realize the right braking to power input shaft 3-3.On the contrary
, when the first brake strip 3-6 and the second brake strip 3-7 unclamp, the first brake strip 3-6 can be at this time
As power input shaft 3-3 is rotated.
Wherein, speed reducer housing 3-1 is preferably still necessarily fixed on the chassis of rail vehicle.
Certainly it should be noted that the quantity of brake strip is not limited by illustrating herein, can also be it is a piece of or
Person is three pieces or more.Also, the structure type of brake strip and distribution are also not limited by the accompanying figures, as long as can be used for and move
Power input shaft 3-3 is contacted and is realized the braking to power input shaft 3-3.
It is preferred that but be necessarily provided with internal spline on the first brake strip 3-6, be provided on power input shaft 3-3 with
The external splines slot of internal spline cooperation；It is provided with key teeth on second brake strip 3-7, is provided on speed reducer housing 3-1 and institute
State the spline of key teeth cooperation.Can not only guarantee in the case of this kind the first brake strip 3-6 and power input shaft 3-3 it
Between and the second brake strip 3-7 and speed reducer housing 3-1 between, it is axial only to take place along power input shaft 3-3
Relative motion；And it can also guarantee between the first brake strip 3-6 and power input shaft 3-3 and the second drag friction
Effective cooperation between piece 3-7 and speed reducer housing 3-1.
Further, brake strip can be driven using checking cylinder, so that brake strip is along power input shaft 3-3
Axial movement.Checking cylinder can be cylinder or hydraulic cylinder.Wherein preferred checking cylinder uses the form of hydraulic cylinder, hydraulic cylinder system
Dynamic pressure is much higher than cylinder activation pressure, it is ensured that entire rail vehicle power assembly structure is more compact.And it needs
Illustrate, since the heat generated when braking can be taken away when the liquid of hydraulic cylinder flows out, to guarantee rail vehicle
Power assembly works safe and reliable.
When checking cylinder be hydraulic cylinder when, it is preferred to use oil cylinder, and oil cylinder include outer oil cavity 3-10, interior oil pocket 3-12 and
Plunger shaft.Wherein, the first hydraulic fluid port of outer oil cavity 3-10 connection 3-9, interior oil pocket 3-12 connection the second hydraulic fluid port 3-11, the interior setting of plunger shaft
There is piston 3-8, and piston 3-8 is connected to close to one end of brake strip with interior oil pocket 3-12, piston 3-8 is far from brake strip
One end be connected to outer oil cavity 3-10；It is additionally provided with the spring 3-13 of any amount and structure type in plunger shaft, is used for institute
State power of the piston 3-8 application towards the brake strip.
In Fig. 5, more spring 3-13 form groups of springs, and piston 3-8 is under the action of upper spring group, can be in plunger shaft
Portion is moved downward along piston cavity wall, and then piston 3-8 pushes the first brake strip 3-6 and the second brake strip 3-7
Movement, so that the first brake strip 3-6 compresses the second brake strip 3-7, and outside the second brake strip 3-7 and retarder
Shell 3-1 is fixed.
When the first hydraulic fluid port 3-9 connection high pressure oil when the second hydraulic fluid port 3-11 connection fuel tank, outer oil cavity 3-10 is full of pressure oil,
Pressure is substantially zeroed in interior oil pocket 3-12.Then at this time piston 3-8 under the compound action of hydraulic fluid pressure and spring 3-13 pressure
It moves downward, compresses the first brake strip 3-6 and the second brake strip 3-7, and the second brake strip 3-7 and deceleration
3 shell of device is fixed.
When the first hydraulic fluid port 3-9 connection fuel tank and when the second hydraulic fluid port 3-11 connection high pressure oil, outer oil cavity 3-10 pressure is essentially
Pressure oil is full of in zero, interior oil pocket 3-12.Then piston 3-8 overcomes spring 3-13 pressure to the right under hydraulic fluid pressure effect at this time
Movement unclamps the first brake strip 3-6 and the second brake strip 3-7.
Certainly it should be noted that the structure of piston 3-8 is not limited by the accompanying figures.The piston 3-8 of any structure type,
As long as brake strip can be driven to move.
Wherein, checking cylinder is preferably arranged in the inside of speed reducer housing 3-1.In addition, working as outer oil cavity 3-10 connection first
First hydraulic fluid port 3-9 and the second hydraulic fluid port 3-11, are preferably all provided with by hydraulic fluid port 3-9 and when interior oil pocket 3-12 connection the second hydraulic fluid port 3-11
It sets on speed reducer housing 3-1.In the case of this kind, it is equivalent to the braking by the dynamic traction device of rail vehicle and rail vehicle
Apparatus integration setting, so that the structure of rail vehicle power assembly advanced optimizes.
It is former at this time dynamic when rail vehicle needs parking braking for the rail vehicle power assembly of the present embodiment
Machine 4 is without power output, and at this time since complete machine shuts down, the first hydraulic fluid port 3-9 and the second equal connection of hydraulic fluid port 3-11
Fuel tank, so hydraulic fluid pressure is zero in outer oil cavity 3-10 and interior oil pocket 3-12 at this time.At this point, in checking cylinder inner spring 3-
Under 13 active force, piston 3-8 is moved downward, and compresses the first brake strip 3-6 and the second brake strip 3-7, so that
The power input shaft 3-3 of retarder 3 is not able to rotate, and then the power output shaft 3-4 of retarder 3 can not be rotated, then axle 2
And wheel 1 is not able to rotate, namely has achieved the purpose that parking braking.
When rail vehicle needs to stop in operation, the first hydraulic fluid port 3-9 connection high pressure oil and the second hydraulic fluid port 3-11 connection
Fuel tank, outer oil cavity 3-10 is full of pressure oil at this time and pressure is substantially zeroed in interior oil pocket 3-12.Then piston 3-8 will be hydraulic at this time
It is moved downward under the compound action of oil pressure and spring 3-13 pressure, makes the first brake strip 3-6 and the second brake strip
3-7 is compressed, so that the power input shaft 3-3 of retarder 3 is not able to rotate, and then the power output shaft 3-4 of retarder 3 can not turn
Dynamic, then axle 2 and wheel 1 are not able to rotate, namely have achieved the purpose that operation braking.
When rail vehicle operates normally, the first hydraulic fluid port 3-9 connection fuel tank and the second hydraulic fluid port 3-11 connection high pressure oil are then outer
Oil pocket 3-10 pressure is zero, and high pressure oil is full of in interior oil pocket 3-12.Then piston 3-8 will be in interior oil pocket 3-12 hydraulic fluid pressure
Under effect, spring 3-13 pressure is overcome to move right, unclamps the first brake strip 3-6 and the second brake strip 3-7.Cause
And under the power drive of prime mover 4, the power input shaft 3-3 of retarder 3 rotates and drives power output shaft 3-4, and power is defeated
Shaft 3-4 axle shaft 2 rotates, and axle 2 is with motor car wheel 1, to drive rail vehicle proper motion.
Embodiment of above is merely to illustrate the utility model, rather than limitations of the present invention.Although referring to implementation
The utility model is described in detail in example, those skilled in the art should understand that, to the technology of the utility model
Scheme carries out various combinations, modification or equivalent replacement, without departing from the spirit and scope of the technical scheme of the present invention, should all
Cover in the scope of the claims of the utility model.
Claims (8)
1. a kind of rail vehicle power assembly, which is characterized in that described to subtract including prime mover, retarder and brake strip
Fast device includes power input shaft and speed reducer housing, is sequentially connected between the power input shaft and described prime mover, and described
Power input shaft connects the brake strip, so that the power input shaft and the brake strip rotate synchronously；It is described
Brake strip can the relatively described power input shaft axial movement and be fixed on the speed reducer housing.
2. rail vehicle power assembly according to claim 1, which is characterized in that the brake strip includes the first system
Movable friction plate and the second brake strip, first brake strip and the power input shaft are coaxially disposed；And described
Keyway is provided on one of first brake strip and the power input shaft, another be provided with cooperates with the keyway
Key；It is provided with keyway on one of second brake strip and the speed reducer housing, it is another to be provided with and institute
State the key of keyway cooperation.
3. rail vehicle power assembly according to claim 2, which is characterized in that the first drag friction on piece setting
There is internal spline, the external splines slot with internal spline cooperation is provided on the power input shaft；Second brake strip
On be provided with key teeth, be provided on the speed reducer housing with the key teeth cooperation spline.
4. rail vehicle power assembly as claimed in any of claims 1 to 3, which is characterized in that the braking rubs
Pad is driven by checking cylinder.
5. rail vehicle power assembly according to claim 4, which is characterized in that the checking cylinder is located at the retarder
The inside of shell.
6. rail vehicle power assembly according to claim 4, which is characterized in that the checking cylinder is oil cylinder, including outer
Oil pocket, interior oil pocket and plunger shaft, the outer oil cavity connect the first hydraulic fluid port, and the interior oil pocket connects the second hydraulic fluid port, the plunger shaft
It is inside provided with piston, and the piston is connected to close to one end of the brake strip with the interior oil pocket, the piston is separate
One end of the brake strip is connected to the outer oil cavity；It is additionally provided with groups of springs in the plunger shaft, is used for the work
Plug applies the power towards the brake strip.
7. rail vehicle power assembly according to claim 6, which is characterized in that first hydraulic fluid port and second oil
Mouth is both formed on the speed reducer housing.
8. rail vehicle power assembly as claimed in any of claims 1 to 3, which is characterized in that the retarder
It further include power output shaft, the power output shaft is connect with axle drive, and the axle connects wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821041455.8U CN208630613U (en) | 2018-06-29 | 2018-06-29 | A kind of rail vehicle power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821041455.8U CN208630613U (en) | 2018-06-29 | 2018-06-29 | A kind of rail vehicle power assembly |
Publications (1)
| Publication Number | Publication Date |
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| CN208630613U true CN208630613U (en) | 2019-03-22 |
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ID=65736143
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| CN201821041455.8U Active CN208630613U (en) | 2018-06-29 | 2018-06-29 | A kind of rail vehicle power assembly |
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| CN (1) | CN208630613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860209A (en) * | 2018-06-29 | 2018-11-23 | 中车工业研究院有限公司 | A kind of rail vehicle power assembly |
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2018
- 2018-06-29 CN CN201821041455.8U patent/CN208630613U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860209A (en) * | 2018-06-29 | 2018-11-23 | 中车工业研究院有限公司 | A kind of rail vehicle power assembly |
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