CN220207066U - Clutch response time measuring device - Google Patents

Clutch response time measuring device Download PDF

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Publication number
CN220207066U
CN220207066U CN202321822960.7U CN202321822960U CN220207066U CN 220207066 U CN220207066 U CN 220207066U CN 202321822960 U CN202321822960 U CN 202321822960U CN 220207066 U CN220207066 U CN 220207066U
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China
Prior art keywords
clutch
passive
response time
active
motor
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CN202321822960.7U
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Chinese (zh)
Inventor
刘程延
鲁剑
王科
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Sichuan Iat New Energy Automobile Co ltd
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Sichuan Iat New Energy Automobile Co ltd
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Abstract

The utility model relates to the technical field of clutch testing, in particular to a device for measuring response time of a clutch. The device comprises an active synchronous mechanism, a passive synchronous mechanism, a driving piece and detection equipment; a tested clutch is arranged between the active synchronous mechanism and the passive synchronous mechanism, the tested clutch is provided with a connection state for enabling the active synchronous mechanism to drive the passive synchronous mechanism to synchronously act and a disconnection state for enabling the active synchronous mechanism to be disconnected from the passive synchronous mechanism, and the driving piece is used for driving the tested clutch to switch between the connection state and the disconnection state; the detection device is capable of detecting and recording the time when the clutch under test is switched from the off state to the on state and the time when the passive synchronization mechanism starts to act. The measuring device provided by the application can accurately measure the response time of the clutch, and lighten the labor intensity; the device also has the advantages of wide measurement application range, simple structure and low cost.

Description

Clutch response time measuring device
Technical Field
The utility model relates to the technical field of clutch testing, in particular to a device for measuring response time of a clutch.
Background
The clutch is widely applied to the fields of automobiles and the like and plays an important role in power transmission; the response time of the clutch directly affects the performance of the clutch, and therefore, the response time of the clutch needs to be measured to evaluate the performance of the clutch in actual use. At present, the clutch response time is obtained by theoretical calculation; the clutch response time is formed by adding three parts of time, and the response time of each part is respectively as follows: the first part is the current response time, which is the response time of the current from zero to the target current; the second part is the moving time of the mechanical structure in the electromagnetic clutch, including the time of approaching, attaching, friction and successful engagement; the third part is the engine shaft speed synchronization time, i.e. the time when the engine speed is adjusted from zero to the target speed or from the current speed to the required speed after the engagement is successful. The existing measuring method needs manual calculation, the labor intensity of workers is increased, and the data obtained by theoretical calculation are not accurate enough.
Disclosure of Invention
The utility model aims to provide a measuring device for clutch response time, which is used for solving the technical problems of high manual labor intensity and inaccurate calculation result existing in the prior art by theoretically calculating the clutch response time.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the clutch response time measuring device comprises an active synchronous mechanism, a passive synchronous mechanism, a driving piece and a detection device;
a tested clutch is arranged between the active synchronous mechanism and the passive synchronous mechanism, the tested clutch is provided with a connection state for enabling the active synchronous mechanism to drive the passive synchronous mechanism to synchronously act and a disconnection state for enabling the active synchronous mechanism to be disconnected from the passive synchronous mechanism, and the driving piece is used for driving the tested clutch to switch between the connection state and the disconnection state;
the detection device can detect and record the time when the clutch to be detected is switched from the off state to the on state and the time when the passive synchronous mechanism starts to act.
Further, the clutch to be tested is an electromagnetic clutch, and the driving piece is a direct current power supply.
Further, the detection device comprises an oscilloscope, and the oscilloscope is electrically connected with the direct-current power supply.
Further, the passive synchronization mechanism comprises a first power component and a passive motor connected with the first power component.
Further, the detection equipment further comprises a motor rotating speed acquisition instrument, and the motor rotating speed acquisition instrument is electrically connected with the passive motor and the oscilloscope.
Further, the detection equipment further comprises a differential probe, and two ends of the differential probe are respectively connected with the direct-current power supply and the motor rotating speed acquisition instrument.
Further, the passive motor is a permanent magnet synchronous motor.
Further, the active synchronization mechanism comprises a second power component and an active motor connected with the second power component.
Further, the active synchronization mechanism comprises a second power component, an automobile differential connected with the second power component and an active motor connected with the automobile differential.
Further, the number of the driving motors is two, and the two driving motors are respectively connected with two half shafts of the automobile differential mechanism.
The utility model has the beneficial effects that:
the utility model provides a measuring device for clutch response time, which comprises an active synchronous mechanism, a passive synchronous mechanism, a driving piece and detection equipment, wherein the active synchronous mechanism is used for driving the driving piece to rotate; a tested clutch is arranged between the active synchronous mechanism and the passive synchronous mechanism, the tested clutch is provided with a connection state for enabling the active synchronous mechanism to drive the passive synchronous mechanism to synchronously act and a disconnection state for enabling the active synchronous mechanism to be disconnected from the passive synchronous mechanism, and the driving piece is used for driving the tested clutch to switch between the connection state and the disconnection state; the detection device is capable of detecting and recording the time when the clutch under test is switched from the off state to the on state and the time when the passive synchronization mechanism starts to act. During measurement, the time for switching the clutch to be measured from the off state to the on state and the time for starting the action of the passive synchronous mechanism are obtained through the detection mechanism, and the difference between the two times is read to obtain the response time of the clutch to be measured. The measuring device provided by the application can accurately measure the response time of the clutch, makes up for the blank of the industry, and reduces the labor intensity of workers; the device can also measure the clutches with different product specifications/structures, and the measuring application range is wide; in addition, the device has the advantages of simple structure, low cost and strong practicability.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a clutch response time measurement device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a device for measuring response time of a clutch according to a second embodiment of the present utility model.
Icon:
1-an active synchronization mechanism; 11-a second power assembly; 12-an active motor; 13-an automotive differential;
2-a passive synchronization mechanism; 21-a first power assembly; 22-a passive motor;
3-a driving member;
4-a detection device; 41-oscilloscopes; 42-a motor rotation speed acquisition instrument; 43 differential probe;
100-measured clutch.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the description of the present utility model, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that, in the description of the present utility model, the terms "connected" and "mounted" should be understood in a broad sense, and for example, may be a fixed connection, a detachable connection, or an integral connection; can be directly connected or connected through an intermediate medium; either mechanically or electrically. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1, an embodiment of the present utility model provides a device for measuring response time of a clutch, including an active synchronization mechanism 1, a passive synchronization mechanism 2, a driving member 3, and a detection apparatus 4;
a tested clutch 100 is arranged between the active synchronous mechanism 1 and the passive synchronous mechanism 2, the tested clutch 100 is provided with an on state for enabling the active synchronous mechanism 1 to drive the passive synchronous mechanism 2 to synchronously act and an off state for enabling the active synchronous mechanism 1 to be disconnected from the passive synchronous mechanism 2, and the driving piece 3 is used for driving the tested clutch 100 to switch between the on state and the off state;
the detection device 4 is capable of detecting and recording the time at which the clutch 100 under test is switched from the off state to the on state and the time at which the passive synchronization mechanism 2 starts to operate.
The measuring process of the device is as follows:
in the initial state, all the components do not work, and the clutch 100 to be tested is in the disconnected state; the active synchronous mechanism 1 is started, and then the tested clutch 100 is driven by the driving piece 3 to switch from the off state to the on state, so that the active synchronous mechanism 1 drives the passive synchronous mechanism 2 to synchronously act; meanwhile, the detecting device 4 detects and records the time when the clutch 100 to be detected is switched from the off state to the on state and the time when the passive synchronous mechanism 2 starts to act, and the difference between the two times is read to be the response time of the clutch 100 to be detected.
The measuring device provided by the application can accurately measure the response time of the clutch, makes up for the blank of the industry, and reduces the labor intensity of workers; the device can also measure the clutches with different product specifications/structures, and the measuring application range is wide; in addition, the device has the advantages of simple structure, low cost and strong practicability.
In this embodiment, the clutch under test 100 is an electromagnetic clutch, and the driving member 3 is a dc power source. Specifically, the driving member 3 is a low-voltage dc power supply, which is connected to the positive and negative electrodes of the clutch under test 100 (electromagnetic clutch) through copper-core wires; the dc power supply is used to provide a stable constant current power supply, and the clutch under test 100 (electromagnetic clutch) is controlled to switch between an off state and an on state by turning on and off the dc power supply.
In other embodiments, the tested clutch 100 may be a clutch of other configurations, without limitation.
On the basis of the above configuration, the detection device 4 includes an oscilloscope 41, and the oscilloscope 41 is electrically connected to a dc power supply. As shown in fig. 1, a signal line is shown as a broken line, and the oscilloscope 41 is electrically connected to a dc power supply through the signal line. The oscilloscope 41 can collect the waveform of the dc power supply voltage change, and thus the time when the clutch 100 under test is switched from the off state to the on state.
Further, the active synchronization mechanism 1 comprises a second power assembly 11 and an active motor 12 connected with the second power assembly 11; the passive synchronization mechanism 2 includes a first power assembly 21 and a passive motor 22 connected to the first power assembly 21; the clutch under test 100 is disposed between the first power assembly 21 and the second power assembly 11, and serves to cut off or transmit power. The detecting device 4 further includes a motor rotation speed collector 42, and the motor rotation speed collector 42 is electrically connected with the passive motor 22 and the oscilloscope 41. During measurement, the driving motor 12 drives the second power assembly 11 to act, and the second power assembly 11 transmits power to the first power assembly 21 through the clutch 100 to be measured so as to drive the driven motor 22 to rotate; the motor rotation speed acquisition device 42 can acquire a rotation speed change signal (voltage signal) of the passive motor 22, and transmit the signal to the oscilloscope 41, thereby acquiring the time when the passive synchronous mechanism 2 starts to operate. When the device reads the response time, the response time of the tested clutch 100 can be obtained by only adjusting the time base of the oscilloscope and reading the time difference of the direct current power supply to the rotation of the passive motor 22.
The second power assembly 11 and the first power assembly 21 may be gear assembly structures, and the driving motor 12 and the driven motor 22 may be connected to the second power assembly 11 and the first power assembly 21, respectively, through transmission shafts.
In the present embodiment, the passive motor 22 is a permanent magnet synchronous motor; the reluctance torque of the permanent magnet synchronous motor is large, the influence of rotation speed fluctuation of the motor caused by lubricating oil disturbance can be avoided, and the accuracy of measured data is ensured. The active motor 12 is a three-phase asynchronous motor.
Optionally, the detecting device 4 further includes a differential probe 43, and two ends of the differential probe 43 are respectively connected with the dc power supply and the motor rotation speed collector 42 (when connected, attention is paid to distinguishing between positive and negative electrodes). The differential probe 43 facilitates the observation of differential signals to make the measurement data more accurate.
The measuring process of the measuring device is as follows:
1. powering up the driving part 3 (direct current power supply) and the oscilloscope 41, keeping a standby state, controlling the driving motor 12 to operate at a stable rotating speed, and driving the driving motor 12 to drive the second power assembly 11 (which can be a gear assembly) to rotate through a transmission shaft;
2. the data acquisition function of the oscilloscope 41 is adjusted to a current trigger control data capturing mode, so that the oscilloscope can trigger data capturing through a current rising signal of the direct-current power supply;
3. turning on an output switch of the direct current power supply to supply power to the clutch 100 to be tested, and enabling the clutch 100 to be tested to act so as to drive the first power assembly 21 to rotate, and further driving the passive motor 22 to rotate through a transmission shaft; at this time, the motor rotation speed collector 42 collects the rotation speed frequency signal of the passive motor 22, and transmits the signal to the oscilloscope 41, and the oscilloscope 41 collects the voltage variation waveform of the direct current power supply at the same time;
4. adjusting the time base and amplitude of the oscilloscope 41, adjusting the waveform to the center of the display screen (which is convenient for observation), locking the cursors between the current rise and the abrupt change of the waveform signal of the rotating speed, and reading the time difference between the cursors to obtain the complete response time of the tested clutch 100;
5. turning off the output power of the direct current power supply, disengaging the clutch 100 to be measured, gradually stopping the rotation of the driven motor 22, resetting the current signal and the rotating speed frequency signal acquired by the oscilloscope 41 to zero again, and starting the next measuring process; the debugging work of the test process is completed.
Example two
The clutch response time measuring device provided in the present embodiment is developed based on an automobile coupler, and in the present embodiment, the active synchronization mechanism 1 includes a second power assembly 11, an automobile differential 13 connected to the second power assembly 11, and an active motor 12 connected to the automobile differential 13.
Referring to fig. 2, the second power assembly 11 and the first power assembly 21 are components of an automobile coupler, and the second power assembly 11 is connected with an automobile differential 13; the number of the driving motors 12 is two, and the two driving motors 12 are respectively connected with two half shafts of the automobile differential 13; providing two active motors 12 can improve the accuracy of the measurement data. In other embodiments, the number of active motors 12 may be set to one, with the active motors 12 being connected to one of the half shafts of the automobile differential 13.
The measuring device provided by the embodiment can fully utilize the existing power structure of the automobile, and does not need to process the second power component 11 and the first power component 21, so that the aim of saving cost is fulfilled; and, the response time of the clutch 100 to be measured when being applied to the automobile coupler can be accurately measured, and data support is provided for the test of automobile power transmission.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The clutch response time measuring device is characterized by comprising an active synchronous mechanism (1), a passive synchronous mechanism (2), a driving piece (3) and a detecting device (4);
a tested clutch (100) is arranged between the active synchronization mechanism (1) and the passive synchronization mechanism (2), the tested clutch (100) is provided with an on state for enabling the active synchronization mechanism (1) to drive the passive synchronization mechanism (2) to synchronously act and an off state for enabling the active synchronization mechanism (1) to be disconnected from the passive synchronization mechanism (2), and the driving piece (3) is used for driving the tested clutch (100) to switch between the on state and the off state;
the detection device (4) can detect and record the time when the clutch (100) to be detected is switched from the off state to the on state and the time when the passive synchronization mechanism (2) starts to act.
2. The device for measuring the response time of a clutch according to claim 1, wherein the clutch under test (100) is an electromagnetic clutch and the driving member (3) is a direct current power source.
3. The clutch response time measurement device according to claim 2, characterized in that the detection means (4) comprise an oscilloscope (41), the oscilloscope (41) being electrically connected to the direct current power supply.
4. A device for measuring clutch response time according to claim 3, characterized in that the passive synchronization mechanism (2) comprises a first power assembly (21) and a passive motor (22) connected to the first power assembly (21).
5. The clutch response time measurement device according to claim 4, characterized in that the detection means (4) further comprises a motor speed acquisition instrument (42), the motor speed acquisition instrument (42) being electrically connected to the passive motor (22) and the oscilloscope (41).
6. The clutch response time measuring device according to claim 5, wherein the detecting means (4) further comprises a differential probe (43), and both ends of the differential probe (43) are connected to the dc power supply and the motor rotation speed collector (42), respectively.
7. The clutch response time measuring device according to claim 4, characterized in that the passive motor (22) is a permanent magnet synchronous motor.
8. The clutch response time measuring device according to claim 1, characterized in that the active synchronizing mechanism (1) comprises a second power assembly (11) and an active motor (12) connected to the second power assembly (11).
9. The device for measuring the response time of a clutch according to claim 1, characterized in that the active synchronizing mechanism (1) comprises a second power assembly (11), a car differential (13) connected to the second power assembly (11) and an active motor (12) connected to the car differential (13).
10. The device for measuring the response time of a clutch according to claim 9, characterized in that the number of active motors (12) is two, and that the two active motors (12) are connected to two half shafts of the automobile differential (13), respectively.
CN202321822960.7U 2023-07-11 2023-07-11 Clutch response time measuring device Active CN220207066U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321822960.7U CN220207066U (en) 2023-07-11 2023-07-11 Clutch response time measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321822960.7U CN220207066U (en) 2023-07-11 2023-07-11 Clutch response time measuring device

Publications (1)

Publication Number Publication Date
CN220207066U true CN220207066U (en) 2023-12-19

Family

ID=89147888

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321822960.7U Active CN220207066U (en) 2023-07-11 2023-07-11 Clutch response time measuring device

Country Status (1)

Country Link
CN (1) CN220207066U (en)

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