CN216846198U - Range extender shafting phase difference measuring device - Google Patents
Range extender shafting phase difference measuring device Download PDFInfo
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- CN216846198U CN216846198U CN202220575326.7U CN202220575326U CN216846198U CN 216846198 U CN216846198 U CN 216846198U CN 202220575326 U CN202220575326 U CN 202220575326U CN 216846198 U CN216846198 U CN 216846198U
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- phase difference
- angle encoder
- range extender
- motor rotor
- crankshaft
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Abstract
The utility model relates to a range extender shafting phase difference measuring device, the range extender includes bent axle (1), flywheel (2), shock attenuation belt pulley (3) and electric motor rotor (4), bent axle (1), flywheel (2), shock attenuation belt pulley (3) and electric motor rotor (4) synchronous rotation; the measuring device comprises an angle encoder (5), a photoelectric sensor (6), a code disc (7), a data acquisition card and an upper computer, wherein the angle encoder (5) is connected with the crankshaft (1), the code disc (7) is fixed with the motor rotor (4), the code disc (7) is matched with the photoelectric sensor (6), the angle encoder (5) and the photoelectric sensor (6) are respectively connected with the data acquisition card, and the data acquisition card is connected with the upper computer. An object of the utility model is to provide an increase journey ware shafting phase difference measuring device improves phase difference measurement accuracy, and the measuring result is more close to the true value.
Description
Technical Field
The utility model relates to an increase journey ware technical field, especially relate to an increase journey ware shafting phase difference measuring device.
Background
The range extender is composed of an engine, a torsional damper and a generator. The engine is connected with the rotor of the generator through a crankshaft flywheel and a torsional damper to rotate, and the generator generates electricity to charge the battery. The design of the torsional vibration damper directly influences the vibration of the whole power system, and the improper design can generate resonance to damage the whole shafting.
The quality of the design of the torsional damper needs to be evaluated by measuring the phase difference between the crankshaft of the engine and the rotor of the generator through a dynamic test.
In the prior art, the phase signal of the engine crankshaft directly adopts the signal of a crankshaft signal panel, and the measurement precision is +/-3 degrees because the crankshaft signal panel has 60 teeth, so that the measurement precision is low.
Meanwhile, as the two ends of the motor rotor of the range extender are not provided with connecting structures, an efficient measuring method does not exist at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an increase journey ware shafting phase difference measuring device improves phase difference measurement accuracy, and the measuring result is more close the true value, provides data support for the design of twisting the bumper shock absorber.
In order to achieve the above object, the basic scheme of the present invention is as follows:
a range extender shafting phase difference measuring device comprises a crankshaft and a motor rotor, wherein the crankshaft and the motor rotor synchronously rotate; the measuring device comprises an angle encoder, a photoelectric sensor, a code disc, a data acquisition card and an upper computer, wherein the angle encoder is connected with the crankshaft, the code disc is fixed with the motor rotor, the code disc is matched with the photoelectric sensor, the angle encoder and the photoelectric sensor are respectively connected with the data acquisition card, and the data acquisition card is connected with the upper computer.
Compare in prior art this application increase journey ware shafting phase difference measuring device has following beneficial effect:
the range extender shafting phase difference measuring device is provided with the angle encoder which is connected with the crankshaft, the code disc and the photoelectric sensor are arranged on a data acquisition card for transmitting output signals by the angle encoder, the acquired signals are transmitted to the data acquisition card through the photoelectric sensor, the upper computer converts the crankshaft angle encoding signals acquired by the data acquisition card and the photoelectric encoding signals of the motor rotor into angles respectively, and the angle phase difference is obtained through difference calculation.
The phase difference precision that this application set up angle encoder, code wheel and photoelectric sensing ware measurement and obtain is higher, and the measuring result is more close to the true value. Meanwhile, the existing angle measurement technology is limited by a connecting structure and an arrangement space, however, according to the technical scheme of the application, the connecting structure is not additionally arranged on the motor rotor, only the coded disc is required to be attached to the motor rotor, and the photoelectric sensor is used for measurement, so that extra space is not occupied.
Preferably, the device further comprises a bracket, and the angle encoder is mounted on the bracket.
Preferably, the angle encoder is connected to the crankshaft by a bolt.
In the technical scheme, the angle encoder is fixed on the test bed through the support and is connected with a crankshaft of the engine through a bolt.
Preferably, the code wheel is adhered to the outer circumferential surface of the motor rotor.
In the technical scheme, the code disc is adhered to the outer circumferential surface of the motor rotor and fixed with the motor rotor, the time interval between the convex teeth and the concave teeth on the code disc is collected through the photoelectric sensor, and a collected signal is transmitted to the data collection card.
Preferably, the resolution of the angular encoder is 1000P/R.
Has the advantages that: the angle encoder adopts 1000P/R resolution, and the angle resolution precision can reach +/-0.35 degrees.
Preferably, a pulley is arranged on one side of the crankshaft close to the angle encoder.
In this technical scheme, belt pulley connection external rotation motor makes bent axle and electric motor rotor rotate.
Preferably, the bracket is provided with a positioning hole, the angle encoder is matched with the positioning hole, and the end part of the bracket extends to one side to form a fixing plate.
Preferably, the bracket is provided with a first arc plate and a second arc plate, and the first arc plate and the second arc plate form the positioning hole.
Has the advantages that: the quick location of angle encoder and support is convenient for realize in the setting of locating hole, improves the installation effectiveness of angle encoder and support.
Drawings
Fig. 1 is a schematic structural diagram of a device for measuring a phase difference of a range extender shafting according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electric motor rotor according to an embodiment of the present invention;
fig. 3 is a working principle block diagram of a device for measuring a phase difference of a range extender shafting provided by the embodiment of the present invention;
fig. 4 is an assembly view of the bracket and the angle encoder provided by the embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a crankshaft 1, a flywheel 2, a damping belt pulley 3, a motor rotor 4, an angle encoder 5, a photoelectric sensor 6, a code disc 7, a support 8, a bolt 9, a belt pulley 10, a fixing plate 11, a first arc plate 12 and a second arc plate 13.
As shown in fig. 1-3, the present embodiment shows a phase difference measuring device for a shafting of a range extender, where the range extender includes a crankshaft 1, a flywheel 2, a damping pulley 3 and a motor rotor 4, and the crankshaft 1, the flywheel 2, the damping pulley 3 and the motor rotor 4 rotate synchronously; the measuring device comprises an angle encoder 5, a photoelectric sensor 6, a code disc 7, a data acquisition card and an upper computer, wherein the angle encoder 5 is connected with the crankshaft 1, the code disc 7 is fixed with the motor rotor 4, the code disc 7 is matched with the photoelectric sensor 6, the angle encoder 5 and the photoelectric sensor 6 are respectively connected with the data acquisition card, and the data acquisition card is connected with the upper computer.
The working principle of the range extender shafting phase difference measuring device in the embodiment is as follows: the angle encoder 5 is connected with the crankshaft 1, the angle encoder 5 is used for collecting angular displacement of the crankshaft 1, the angle encoder 5 is used for transmitting output signals to a data acquisition card, a code disc 7 and a photoelectric sensor 6 are arranged on the data acquisition card, the photoelectric sensor 6 is used for transmitting collected signals to the data acquisition card, an upper computer is used for converting angle coded signals of the crankshaft 1 and photoelectric coded signals of the motor rotor 4 collected by the data acquisition card into angles respectively, and angle phase difference is obtained through difference calculation.
During the specific test, still include support 8, angle encoder 5 installs on support 8. The angle encoder 5 is connected to the crankshaft 1 by a bolt. One side of bent axle 1 near angle encoder 5 is provided with belt pulley 10, and belt pulley 10 connects the external rotation motor for rotate the motor and drive bent axle 1 and motor rotor 4 through belt pulley 10 and rotate.
Wherein, angle encoder 5 passes through support 8 to be fixed on the test bench, and angle encoder 5 passes through bolt 9 and is connected with the bent axle 1 of engine.
Specifically, the code wheel 7 is adhered to the outer circumferential surface of the motor rotor 4, the code wheel 7 is fixed with the motor rotor 4, the time interval between the convex teeth and the concave teeth on the code wheel 7 is collected through the photoelectric sensor 6, and the collected signals are transmitted to the data collection card.
In this embodiment, the angle encoder 5 adopts 1000P/R resolution, and the angle resolution precision can reach +/-0.35 degrees.
In another embodiment, as shown in fig. 4, a positioning hole is provided on the bracket 8, the angle encoder 5 is adapted to the positioning hole, and a fixing plate 11 extends from an end of the bracket 8 to one side.
Specifically, in this embodiment, the bracket 8 is provided with a first arc plate 12 and a second arc plate 13, and the first arc plate 12 and the second arc plate 13 form the positioning hole.
Wherein, 5 tip of angle encoder insert in the locating hole during the assembly, realize 5 and 8 quick location of support of angle encoder to improve 5 and 8 installation effectiveness of support of angle encoder. The fixed plate 11 is fixedly connected with the test bed, and the purpose that the angle encoder 5 is installed on the test bed is achieved.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. A device for measuring the phase difference of a range extender shaft system is characterized in that: the range extender comprises a crankshaft (1) and a motor rotor (4), and the crankshaft (1) and the motor rotor (4) rotate synchronously; the measuring device comprises an angle encoder (5), a photoelectric sensor (6), a code disc (7), a data acquisition card and an upper computer, wherein the angle encoder (5) is connected with the crankshaft (1), the code disc (7) is fixed with the motor rotor (4), the code disc (7) is matched with the photoelectric sensor (6), the angle encoder (5) and the photoelectric sensor (6) are respectively connected with the data acquisition card, and the data acquisition card is connected with the upper computer.
2. The device for measuring the phase difference of the range extender shafting according to claim 1, wherein: the device is characterized by further comprising a support (8), wherein the angle encoder (5) is installed on the support (8).
3. The device for measuring the phase difference of the range extender shafting according to claim 2, wherein: the angle encoder (5) is connected with the crankshaft (1) through a bolt (9).
4. The device for measuring the phase difference of the range extender shafting according to claim 1, wherein: the coded disc (7) is adhered to the outer circumferential surface of the motor rotor (4).
5. The device for measuring the phase difference of the range extender shafting according to claim 1, wherein: the resolution of the angle encoder (5) is 1000P/R.
6. The device for measuring the phase difference of the range extender shafting according to claim 1, wherein: and a belt pulley (10) is arranged on one side of the crankshaft (1) close to the angle encoder (5).
7. The device for measuring the phase difference of the range extender shafting according to claim 2, wherein: the angle encoder is characterized in that a positioning hole is formed in the support (8), the angle encoder (5) is matched with the positioning hole, and a fixing plate (11) extends towards one side of the end of the support (8).
8. The device for measuring the phase difference of the range extender shafting according to claim 7, wherein: be provided with first circular arc board (12) and second circular arc board (13) on support (8), first circular arc board (12) with second circular arc board (13) form the locating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220575326.7U CN216846198U (en) | 2022-03-15 | 2022-03-15 | Range extender shafting phase difference measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220575326.7U CN216846198U (en) | 2022-03-15 | 2022-03-15 | Range extender shafting phase difference measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216846198U true CN216846198U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220575326.7U Active CN216846198U (en) | 2022-03-15 | 2022-03-15 | Range extender shafting phase difference measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216846198U (en) |
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2022
- 2022-03-15 CN CN202220575326.7U patent/CN216846198U/en active Active
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