CN202732774U - Coupling - Google Patents
Coupling Download PDFInfo
- Publication number
- CN202732774U CN202732774U CN 201220267431 CN201220267431U CN202732774U CN 202732774 U CN202732774 U CN 202732774U CN 201220267431 CN201220267431 CN 201220267431 CN 201220267431 U CN201220267431 U CN 201220267431U CN 202732774 U CN202732774 U CN 202732774U
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- Prior art keywords
- connecting shaft
- friction body
- magnetic powder
- engine
- terminal
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- Expired - Fee Related
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- 230000008878 coupling Effects 0.000 title claims abstract description 22
- 238000010168 coupling process Methods 0.000 title claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 22
- 239000006247 magnetic powder Substances 0.000 claims abstract description 36
- 238000002360 preparation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
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Abstract
The utility model discloses a coupling, relates to the technical field of engineering elements, and aims at improving the synchronism of the combination of an engine and a motor to reduce the vibration impact in the combination process, and further improving the work efficiency. The coupling comprises a first connection shaft connected with the engine and a second connection shaft which is arranged opposite to the first connection shaft and is connected with the motor, wherein the first connection shaft is provided with a first friction body capable of moving axially in a meshed and sleeved mode, the second connection shaft is fixedly connected with a second friction body, the first friction body is a permanent magnet friction body, the permanent magnet friction body on the first connection shaft is provided with a magnetic powder cavity along the direction of the engine, magnetic powder is filled in the magnetic powder cavity, a coil winds inside an inner cavity of the magnetic powder cavity along the circumference of the magnetic powder cavity, and the coil is connected with a direct current power source. The coupling is used to achieve the locking and separation between a crankshaft of the engine and a rotor shaft of the motor in a hybrid power automotive vehicle.
Description
Technical Field
The utility model relates to an engineering component technical field especially relates to a hybrid vehicle's shaft coupling.
Background
A hybrid vehicle is a development direction of a new energy vehicle in the future, and a driving force of an engine or a rotational force of a motor is transmitted to a transmission of the vehicle by operating a clutch. The most environment-friendly hybrid motor vehicle is mainly driven by a motor, and when the power of the motor is insufficient, the motor is driven by an engine to rotate a rotor shaft of the motor for supplementation. The crankshaft of the engine and the rotor shaft of the motor of the current hybrid motor vehicle realize locking and separation by operating the clutch. When the power of the motor is insufficient and the engine is required to supplement, the clutch is locked to enable the crankshaft of the engine and the rotor shaft of the motor to be connected together, and the engine drives the rotor shaft of the motor to rotate to drive the vehicle to run. Or the engine drives a rotor shaft of a motor to rotate so as to generate electricity and store the electricity, and then the electricity stored by the motor is transferred to the motor driving the vehicle to run so as to continue the running mileage of the motor vehicle.
The engine is operated at any time according to the control requirement, the existing clutch is generally controlled by a hydraulic system, and the biggest problem in the control process is that the crankshaft of the engine and the rotor shaft of the motor cannot be completely synchronously combined due to hysteresis. Therefore, the whole vehicle can cause vibration impact in the running process and the working efficiency of the whole vehicle can be seriously influenced.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a coupler for improve the vibration impact when the synchronism that engine and motor combine in order to reduce the combination, improve work efficiency.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
a kind of coupler, including the first connecting shaft connected with engine and with the said first connecting shaft set up and second connecting shaft connected with electrical machinery relatively, engage and cover the first friction body that can move axially on the said first connecting shaft often, connect with the second friction body fixedly on the said second connecting shaft; wherein,
the first friction body is a permanent magnet friction body, the first connecting shaft is provided with a magnetic powder cavity in a sleeved mode along the direction close to the engine, magnetic powder is filled in the magnetic powder cavity, a coil is wound in the inner cavity of the magnetic powder cavity and along the circumferential direction of the magnetic powder cavity, and the coil is connected with a direct-current power supply.
Secondly, a first terminal and a second terminal are led out of the coil, the first terminal is connected with the positive pole of the direct current power supply, and the second terminal is connected with the negative pole of the direct current power supply; or the first terminal is connected with the negative electrode of the direct current power supply, and the second terminal is connected with the positive electrode of the direct current power supply.
And thirdly, the permanent magnet friction body is provided with a permanent magnet end and a friction end, the permanent magnet end is close to the engine, and the friction end is close to the motor.
Furthermore, the magnetic powder cavity is supported on the first connecting shaft through a first connecting bearing, one end of the second friction body along the axial direction is supported on the first connecting shaft through a second bearing, and the other end of the second friction body is fixedly connected to the second connecting shaft.
Preferably, the first connecting shaft is of an external spline structure, and the second connecting shaft is of an internal spline structure.
Further, the inner ring of the second connecting bearing is in interference fit with the first connecting shaft, and the outer ring of the second connecting bearing is in interference fit with the second friction body.
Preferably, the second friction body is integrally formed with the second connecting shaft.
The embodiment of the utility model provides a shaft coupling, including the first connecting axle that is connected with the engine and with the relative second connecting axle that sets up of first connecting axle and is connected with the motor, the constant meshing cover is equipped with the first friction body that can axially move on the first connecting axle, fixedly connected with second friction body on the second connecting axle; the first friction body is a permanent magnet friction body, the first connecting shaft is provided with a magnetic powder cavity in a sleeved mode along the direction close to the engine, magnetic powder is filled in the magnetic powder cavity, a coil is wound in the inner cavity of the magnetic powder cavity and along the circumferential direction of the magnetic powder cavity, and the coil is connected with a direct-current power supply. When the engine is required to participate in work, the engine is started, forward current is supplied to the coil at the same time, magnetic powder is excited under the action of a forward magnetic field generated by the coil to generate a magnetic pole with the same polarity as that of the permanent magnetic friction body, the permanent magnetic friction body moves towards the direction of the motor under the action of repulsive force and is in frictional contact with the second friction body, the first connecting shaft and the second connecting shaft are rigidly connected together, and the engine drives the motor to rotate to drive the transmission to work; when the engine does not need to participate in work, reverse current is conducted to the coil, magnetic powder is excited under the action of a reverse magnetic field generated by the coil to generate a magnetic pole with the polarity opposite to that of the permanent magnetic friction body, the permanent magnetic friction body moves towards the direction of the engine under the action of attraction force and is separated from the second friction body, the first connecting shaft is separated from the second connecting shaft, the engine is closed, and the motor independently drives the transmission to work. The combination and separation of the first friction body and the second friction body are driven by electromagnetism, and the response time of the electromagnetism is shorter than that of hydraulic pressure, so that the lag time is shorter, the combination of the engine and the motor is more synchronous, the vibration impact caused in the combination process is smaller, and the working efficiency is higher.
Drawings
Fig. 1 is a schematic structural diagram of a coupling according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the coupling of FIG. 1 in a locked condition;
fig. 3 is a schematic view of the coupling shown in fig. 1 in a disengaged state.
Detailed Description
The embodiment of the present invention will be described in detail with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a specific embodiment of the coupling of the present invention is shown, the coupling includes a first connecting shaft 10 connected to an engine and a second connecting shaft 20 disposed opposite to the first connecting shaft 10 and connected to a motor, a first friction body 12 capable of moving axially is normally engaged with the first connecting shaft 10, and a second friction body 21 is fixedly connected to the second connecting shaft 20; wherein,
The embodiment of the utility model provides a shaft coupling, when needing the engine to participate in work, start the engine and lead to forward current for the coil simultaneously, magnetic excitation under the effect of the forward magnetic field that the coil produced produces with the magnetic pole that permanent magnetism frictional element polarity is the same, permanent magnetism frictional element moves and with second frictional element frictional contact towards the direction of motor under the effect of repulsion, with first connecting axle with second connecting axle rigid connection together, the engine drives the motor and rotates, drive derailleur work; when the engine does not need to participate in work, reverse current is conducted to the coil, magnetic powder is excited under the action of a reverse magnetic field generated by the coil to generate a magnetic pole with the polarity opposite to that of the permanent magnetic friction body, the permanent magnetic friction body moves towards the direction of the engine under the action of attraction force and is separated from the second friction body, the first connecting shaft is separated from the second connecting shaft, the engine is closed, and the motor independently drives the transmission to work. The combination and separation of the first friction body and the second friction body are driven by electromagnetism, and the response time of the electromagnetism is shorter than that of hydraulic pressure, so that the lag time is shorter, the combination of the engine and the motor is more synchronous, the vibration impact caused in the combination process is smaller, and the working efficiency is higher.
It should be noted that, in the above embodiments, the strength of the magnetic field can be adjusted by adjusting the magnitude of the current passing through the coil to adjust the magnitude of the acting force of the magnetic powder on the permanent magnetic friction body, so as to achieve fast combination, fast separation, slow combination, or slow separation of the permanent magnetic friction body and the second permanent magnetic friction body.
Referring to fig. 1 again, the coil has a first terminal a and a second terminal b, the first terminal a is connected with the positive pole of the dc power supply, and the second terminal b is connected with the negative pole of the dc power supply; or the first terminal a is connected with the negative pole of the direct current power supply, and the second terminal b is connected with the positive pole of the direct current power supply. Therefore, when the first terminal a is connected with the positive pole of the direct-current power supply, the second terminal b is connected with the negative pole of the direct-current power supply, the current in the coil is positive current, magnetic powder is excited under the action of a positive magnetic field generated by the coil to generate a magnetic pole with the same polarity as that of the permanent magnetic friction body, the permanent magnetic friction body moves towards the direction of the motor under the action of repulsive force and is in frictional contact with the second friction body, the first connecting shaft and the second connecting shaft are rigidly connected together, and the motor is driven by the engine to rotate so as to drive the transmission to work. When the first terminal a is connected with the negative pole of the direct-current power supply, the second terminal b is connected with the positive pole of the direct-current power supply, the current in the coil is reverse current, magnetic powder is excited under the action of a reverse magnetic field generated by the coil to generate a magnetic pole with the polarity opposite to that of the permanent magnetic friction body, the permanent magnetic friction body moves towards the direction of the engine under the action of attraction force and is separated from the second friction body, the first connecting shaft and the second connecting shaft are separated, the engine is turned off, and the motor independently drives the transmission to work.
As shown in fig. 2, the coupling of the present invention is in a coupling state, and as shown in fig. 3, the coupling of the present invention is in a decoupling state. In the combined state, the permanent magnetic friction body 12 moves rightwards to be in friction contact with the second friction body, and the motor drives the rotor shaft of the motor to rotate; in the separated state, the permanent magnetic friction body 12 moves leftwards to a position close to the magnetic powder cavity, and the vehicle runs under the driving of the motor.
The permanent magnet friction body is provided with a permanent magnet end c and a friction end d, the permanent magnet end c is close to the engine, and the friction end d is close to the motor. The permanent magnet end c is used for interacting with magnetic powder, and the friction end d is used for connecting the first connecting shaft 10 and the second connecting shaft 20 in friction contact with the second friction body 21.
Further, the magnetic powder chamber 11 is supported by the first connecting shaft 10 via the first connecting bearing 3, one end (i.e., the left end in fig. 1 to 3) of the second friction body 21 in the axial direction is supported by the first connecting shaft 10 via the second bearing 4, and the other end (i.e., the right end in fig. 1 to 3) is fixedly connected to the second connecting shaft 20. Thus, when the crankshaft of the engine drives the first connecting shaft 10 to rotate, the magnetic powder cavity 11 and the second friction body 21 do not rotate along with the first connecting shaft 10, and the coaxiality of the first connecting shaft 10 and the second connecting shaft 20 can be ensured.
Furthermore, the first connecting shaft is of an outer spline structure, and the second connecting shaft is of an inner spline structure. This is because the crankshaft of a general engine is made into an internal spline structure, so that the part of the first connecting shaft connected with the engine (i.e. the section a-a shown in fig. 1-3) is made into an external spline structure, which facilitates the connection of the two; and the rotor shaft of the common motor is also made into an external spline structure, so that the second connecting shaft is made into an internal spline structure, and the connection of the second connecting shaft and the internal spline structure is facilitated. The first connecting shaft may be in a non-spline structure at the positions of the first connecting bearing and the second connecting bearing (i.e., the sections b-b and d-d shown in fig. 1-3), and the connecting shaft between the first connecting bearing and the second connecting bearing (i.e., the sections c-c shown in fig. 1-3) is in an external spline structure, so as to be engaged with the first friction body in a spline manner, and so as to enable the first friction body to move axially on the first connecting shaft.
Further, the inner ring of the second connecting bearing is in interference fit with the first connecting shaft, and the outer ring of the second connecting bearing is in interference fit with the second friction body. Thus, the second connecting bearing can support the second friction body, and the second friction body does not rotate along with the first connecting bearing when the first connecting shaft rotates.
Further, the second friction body is integrally formed with the second connecting shaft. Thus, the forming process can be simplified, and the connection between the second friction body and the second connecting shaft can be omitted.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A kind of coupler, including the first connecting shaft connected with engine and with the said first connecting shaft set up and second connecting shaft connected with electrical machinery relatively, engage and cover the first friction body that can move axially on the said first connecting shaft often, connect with the second friction body fixedly on the said second connecting shaft; it is characterized in that the preparation method is characterized in that,
the first friction body is a permanent magnet friction body, the first connecting shaft is provided with a magnetic powder cavity in a sleeved mode along the direction close to the engine, magnetic powder is filled in the magnetic powder cavity, a coil is wound in the inner cavity of the magnetic powder cavity and along the circumferential direction of the magnetic powder cavity, and the coil is connected with a direct-current power supply.
2. The coupling of claim 1, wherein the coil has a first terminal and a second terminal, the first terminal being connected to a positive terminal of the dc power source and the second terminal being connected to a negative terminal of the dc power source; or the first terminal is connected with the negative electrode of the direct current power supply, and the second terminal is connected with the positive electrode of the direct current power supply.
3. A coupling according to claim 1 or 2, wherein the permanent magnet friction body has a permanent magnet end and a friction end, the permanent magnet end being adjacent the motor and the friction end being adjacent the electric machine.
4. The coupling according to claim 1 or 2, wherein the magnetic powder chamber is supported on the first connecting shaft by a first connecting bearing, one end of the second friction body in the axial direction is supported on the first connecting shaft by a second bearing, and the other end is fixedly connected to the second connecting shaft.
5. The coupling of claim 4 wherein said first connecting shaft is of an externally splined configuration and said second connecting shaft is of an internally splined configuration.
6. The coupling of claim 5, wherein the inner race of the second connecting bearing is in interference fit with the first connecting shaft and the outer race of the second connecting bearing is in interference fit with the second friction body.
7. The coupling of claim 6, wherein the second friction body is integrally formed with the second connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267431 CN202732774U (en) | 2012-06-07 | 2012-06-07 | Coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267431 CN202732774U (en) | 2012-06-07 | 2012-06-07 | Coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732774U true CN202732774U (en) | 2013-02-13 |
Family
ID=47658475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220267431 Expired - Fee Related CN202732774U (en) | 2012-06-07 | 2012-06-07 | Coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326536A (en) * | 2013-07-03 | 2013-09-25 | 江苏大学 | Coil and permanent magnet hybrid excitation type eddy current retarder |
| CN109973555A (en) * | 2019-04-15 | 2019-07-05 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of normally closed shaft coupling with arrangement of clutch |
-
2012
- 2012-06-07 CN CN 201220267431 patent/CN202732774U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326536A (en) * | 2013-07-03 | 2013-09-25 | 江苏大学 | Coil and permanent magnet hybrid excitation type eddy current retarder |
| CN109973555A (en) * | 2019-04-15 | 2019-07-05 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of normally closed shaft coupling with arrangement of clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20200607 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |