CN212622944U - Device for testing reliability of master switch - Google Patents
Device for testing reliability of master switch Download PDFInfo
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- CN212622944U CN212622944U CN202021908056.4U CN202021908056U CN212622944U CN 212622944 U CN212622944 U CN 212622944U CN 202021908056 U CN202021908056 U CN 202021908056U CN 212622944 U CN212622944 U CN 212622944U
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- master switch
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Abstract
The utility model provides a device for testing master switch reliability relates to master electrical apparatus technical field, has solved prior art and still has experimented the technical problem of blind spot to master switch long-term reliability's test. The device comprises a mounting rack, an electric connection assembly and a rotating device, wherein a plurality of detection stations for placing a master switch to be tested are arranged on the mounting rack; the power supply of the electric connection assembly is connected with the contact at the detection station through a lead and can provide rated voltage and rated current for the master switch to be detected; and the rotating device provides intermittent rotating force for the knob of the master switch, simulates the state that the master switch is twisted for many times in an after-sale use state, and tests the mechanical performance and the electrical performance of the master switch after reaching a certain number of rotation times so as to judge the quality of the master switch and realize the test of the long-term reliability of the master switch.
Description
Technical Field
The utility model belongs to the technical field of master control electrical apparatus technique and specifically relates to a device for testing master control switch reliability is related to.
Background
The master switch is a rotary switch, which uses a rotary shaft to control the on-off of one or more groups of contacts, and the operating element of the switch is a shaft or a mandrel, and if the contact state needs to be changed, the shaft needs to be rotated to one or more specified positions. The traditional main control window machine uses a main control switch to adjust the air speed of the machine, and a rotary switch which is arranged on the air conditioner and is used as the main control switch is used for controlling the running and the stopping of loads such as a motor, a compressor, electric auxiliary heat and the like. The switch is integrated and non-detachable, and the number of the contacts is generally more than three.
As the electrical parts for adjusting the windshield, the mechanical and electrical reliability of the electrical parts directly influences the normal use of the electrical parts due to the frequent rotation for a long time.
The applicant has found that the prior art has at least the following technical problems:
the prior art still tests the long-term reliability of the master switch in an experimental blind spot. Therefore, aiming at the mechanical property and the electrical property of the master switch, a device needs to be manufactured to simulate after-sale use, so that the device keeps a certain frequency to rotate, and after the specified experiment times are reached, whether the performance of the device meets the requirement is tested again to judge whether the master switch is qualified.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device for testing master switch reliability to the test to master switch long-term reliability that exists among the solution prior art still is the technical problem of experiment blind spot. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of a device for testing master switch reliability, include:
the mounting frame is provided with a plurality of detection stations for placing the master switch to be tested;
an electrical connection assembly comprising a power source and contacts, the power source providing a rated voltage and a rated current; the contact is connected with the power supply through a lead, and the contact is arranged at the detection station;
and the rotating device is arranged on the mounting rack and is used for providing intermittent rotating force for a knob of the master switch.
Optionally, the rotating device comprises a motor, a gear transmission mechanism and a connecting rod, and the motor is in transmission connection with the connecting rod through the gear transmission mechanism; the connecting end of the connecting rod is tubular, can be sleeved on a knob of the master switch and provides rotating force.
Optionally, the gear transmission mechanism includes a rack arranged along the arrangement direction of the plurality of detection stations and a plurality of gears adapted to the rack, the rack is in transmission connection with an output shaft of the motor, and the connecting rod is fixedly mounted on a rotating shaft of the gear.
Optionally, the mounting frame is provided with a plurality of positioning slots serving as detection stations, the contacts are arranged on the bottom sides of the positioning slots, and the master switch, the power supply connected through the wires and the contacts can form an electric circuit.
Optionally, the mounting rack includes a base and a lifting plate, the detection station is disposed on the base, and the rotating device is disposed on the lifting plate; the lifter plate is connected with a driving mechanism in a transmission manner and can be arranged above the detection station in a lifting manner.
Optionally, the driving mechanism includes an upward pushing cylinder, the upward pushing cylinder is disposed on the base, and an output push rod of the upward pushing cylinder is disposed on the bottom surface of the lifting plate.
Optionally, the upper jacking cylinder is connected with a pressure regulating valve.
Optionally, the device for testing the reliability of the master switch further includes a controller, and the controller is in signal connection with the electrical connection component and the rotating device, can control the electrical connection component to be turned on and off, and can control the rotating device to be started and stopped.
Optionally, a sensor is arranged in a loop of the electrical connection assembly, and the sensor is in signal connection with the controller.
Optionally, the device for testing the reliability of the master switch further comprises an alarm, and the controller is in signal connection with the alarm.
The utility model provides a device for testing the reliability of a master switch.A plurality of detection stations for placing the master switch to be tested are arranged on a mounting rack; the power supply of the electric connection assembly is connected with the contact at the detection station through a lead and can provide rated voltage and rated current for the master switch to be detected; and the rotating device provides intermittent rotating force for the knob of the master switch, simulates the state that the master switch is twisted for many times in an after-sale use state, and tests the mechanical performance and the electrical performance of the master switch after reaching a certain number of rotation times so as to judge the quality of the master switch and realize the test of the long-term reliability of the master switch.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a device for testing reliability of a master switch according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a master switch;
FIG. 3 is a schematic perspective view of the apparatus for testing reliability of a master switch of FIG. 1 with an upper cylinder removed;
FIG. 4 is a schematic diagram of a front view of an apparatus for testing the reliability of a master switch;
FIG. 5 is a schematic diagram of a top view of an apparatus for testing the reliability of a master switch.
In fig. 1, a mounting frame; 11. a base; 111. positioning a groove; 12. a lifting plate; 2. a master switch; 21. a knob; 3. a motor; 4. a gear transmission mechanism; 41. a rack; 42. a gear; 5. a connecting rod; 6. and (6) pushing the cylinder upwards.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described 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 skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, 3-5, the utility model provides a device for testing master switch reliability, include:
the mounting rack 1 is provided with a plurality of detection stations for placing the master switch 2 to be tested;
an electrical connection assembly including a power source and contacts, the power source providing a rated voltage and a rated current; the contact is connected with a power supply through a lead and arranged at the detection station;
and the rotating device is arranged on the mounting frame 1 and is used for providing intermittent rotating force for the knob 21 of the master switch 2.
A plurality of detection stations for placing a master switch 2 to be tested are arranged on the mounting frame 1; the power supply of the electric connection assembly is connected with the contact at the detection station through a lead and can provide rated voltage and rated current for the master switch 2 to be detected; intermittent rotating force is provided for the knob 21 of the master switch 2 through the rotating device, the state that the master switch 2 is twisted for many times in an after-sale use state is simulated, and after a certain number of rotating times is reached, the mechanical performance and the electrical performance of the master switch 2 are tested, so that the quality of the master switch 2 is judged, and the long-term reliability of the master switch 2 is tested.
As an alternative embodiment, the rotating device comprises a motor 3, a gear 42 transmission mechanism 4 and a connecting rod 5, wherein the motor 3 is in transmission connection with the connecting rod 5 through the gear 42 transmission mechanism 4; the connecting end of the connecting rod 5 is tubular and can be sleeved on the knob 21 of the master switch 2 and provide rotating force. The structure of the master switch 2 is shown in figure 2. After the motor 3 is started, the gear 42 transmission mechanism 4 drives the connecting rod 5 to rotate by a preset angle, and the connecting rod 5 is sleeved on the knob 21 and can drive the knob 21 to rotate by the preset angle, so that the actual use condition is simulated. The connecting rod 5 should not slide or break the teeth
As an alternative embodiment, the gear 42 transmission mechanism 4 includes a rack 41 arranged along the arrangement direction of the plurality of detection stations and a plurality of gears 42 adapted to the rack 41, the rack 41 is in transmission connection with the output shaft of the motor 3, and the connecting rod 5 is fixedly mounted on the rotating shaft of the gear 42. The motor 3 drives the rack 41 to translate, the plurality of gears 42 meshed with the rack 41 rotate along with the rack, the connecting rod 5 installed on the rotating shaft of the gear 42 is driven to rotate, transmission is stable, and reliability is high.
As an alternative embodiment, the mounting frame 1 is provided with a plurality of positioning slots 111 serving as detection stations, contacts are arranged at bottom sides of the positioning slots 111, the master switch 2 and a power supply and contacts connected through wires can form an electric circuit, the positioning slots 111 are arranged on the base 11, the contacts are located at bottom sides of the positioning slots 111, and when the master switch 2 is placed in the positioning slots 111, the power supply provides rated voltage and rated current for the master switch 2, so that an actual use state is simulated. The positioning slot 111 should be able to close the limit of the main switch 2, and should not cause the damage of the sample due to the large gap.
As an alternative embodiment, the mounting rack 1 comprises a base 11 and a lifting plate 12, the detection station is arranged on the base 11, and the rotating device is arranged on the lifting plate 12; the lifting plate 12 is connected with a driving mechanism in a transmission manner and can be arranged above the detection station in a lifting manner.
As an alternative embodiment, the driving mechanism comprises an upper jacking cylinder 6, the upper jacking cylinder 6 is arranged on the base 11, and an output jacking rod of the upper jacking cylinder 6 is arranged on the bottom surface of the lifting plate 12. The top rod of the top cylinder 6 is connected with the lifting plate 12 on the top, the master switch 2 is placed in the positioning groove 111 after top lifting, and the connecting rod 5 is inserted into the knob 21 of the master switch 2 when descending. The product is clamped in the positioning groove 111, and the contact at the bottom of the positioning groove 111 is connected with the conductive insert of the master switch 2 and then powered on (similar to the matching of a socket and a plug). The upper jacking air cylinder 6 controls the feeding master switch 2 to fix the start of the test, and the master switch 2 is retreated after the test is finished.
As an alternative embodiment, the upper ejection cylinder 6 is connected with a pressure regulating valve, which is used for regulating the air pressure of the upper ejection cylinder 6, and the air source pressure is reduced and stabilized to a fixed value.
As an optional implementation manner, the apparatus for testing the reliability of the master switch further includes a controller, and the controller is in signal connection with the electrical connection assembly and the rotating device, and can control the electrical connection assembly to be switched on and off, and can control the rotating device to be started and stopped.
In an alternative embodiment, a sensor is arranged in the loop of the electrical connection assembly, and the sensor is in signal connection with the controller.
In an optional implementation mode, the device for testing the reliability of the master switch further comprises an alarm, and the controller is in signal connection with the alarm. And when the circuit of the five master switches 2 to be detected is in a simultaneously conducting state under the normal condition every time the circuit rotates once, if the circuit is not conducted, the sensor sends a signal to the controller, and the controller controls the alarm to give an alarm. The reason for non-conduction includes abnormal electric shock or abnormal mechanical capacity, and needs to be analyzed manually.
The servo motor 3 is adopted to drive the gear 42 transmission mechanism 4, and then five (initial station number) connecting rods 5 are driven to rotate, and after the rotation angle is set by software, corresponding pulses are correspondingly given to the servo motor 3. The master switch 2 is placed in the positioning groove 111, the sample is pneumatically pushed to be matched and sleeved with the connecting rod 5 of the gear 42, and therefore the installation time of a tester (the master switch 2 needs to be fixed through two screws on the whole machine) can be saved. The rotation angle and the operation frequency are set, the operation is started, the interface displays the real-time operation frequency, the controller controls the electric connection assembly to be powered off after the frequency is reached, and the servo motor 3 is controlled to stop, so that the automatic stop is realized.
The device for testing the reliability of the master switch in the test process can enable the master switch 2 to be connected with rated voltage and rated current, and simulate the influence of frequent operation on a product when the master switch is installed on a complete machine. And monitoring the conduction of the contact in the process, and setting software to automatically alarm when the contact of the switch is abnormal or the mechanical capacity is reduced in the process.
The main technical performance indexes of the device for testing the reliability of the master switch are as follows:
(1) rotation angle: according to different sample models, the required tool can meet the requirement that the servo motor 3 acts once, and the switch rotates by 45 degrees, 60 degrees or 72 degrees;
(2) rotation frequency: the sample at the 45-degree angle position needs to be rotated for 1 circle in 0.3 second, the sample at the 60-degree angle position needs to be rotated for 1 circle in 0.5 second, and the sample at the 72-degree angle position needs to be rotated for 1 circle in 0.7 second; the rotating angle and the frequency should not have excessive errors, so that the mechanical property abnormality caused by the excessive rotating angle is avoided, and the test result is not influenced; the rotating speed is high in the test process, the contact time of the contact is short, the sample state in the test process is monitored, and the contact condition can be monitored in time.
(3) The test times are as follows: setting randomly for 0-5 ten thousand times; when the test times reach a set value, the device automatically stops.
Power switch on the operation panel: the start button and the stop button are used for controlling the internal circuit of the device to be connected.
The touch screen is used for setting and inputting test parameters, and the setting of test times, rotation angles and the like is completed through the touch screen; and (5) monitoring the starting and stopping of the test operation and displaying the test record, and displaying the test result after the test is finished. Including all parameter inputs.
The device for testing the reliability of the master switch detects the functional influence of a product after long-term use, identifies the defects of the product in advance and reduces the after-sale cost; and the test times and the experimental results can be automatically stored and recorded, so that the follow-up batch tracing is facilitated.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be understood that the terms "mounted", "connected" and "connected", unless expressly specified or limited otherwise, are intended to be interpreted broadly, as meaning either a fixed connection or a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
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 (10)
1. An apparatus for testing reliability of a master switch, comprising:
the mounting rack (1) is provided with a plurality of detection stations for placing the master switch (2) to be tested;
an electrical connection assembly comprising a power source and contacts, the power source providing a rated voltage and a rated current; the contact is connected with the power supply through a lead, and the contact is arranged at the detection station;
and the rotating device is arranged on the mounting rack (1) and is used for providing intermittent rotating force for a knob (21) of the master switch (2).
2. The device for testing the reliability of the master switch according to claim 1, wherein the rotating device comprises a motor (3), a gear transmission mechanism (4) and a connecting rod (5), and the motor (3) is in transmission connection with the connecting rod (5) through the gear transmission mechanism (4); the connecting end of the connecting rod (5) is tubular, and can be sleeved on a knob (21) of the master switch (2) and provide rotating force.
3. The device for testing the reliability of the master switch according to claim 2, wherein the gear transmission mechanism (4) comprises a rack (41) arranged along the arrangement direction of the detection stations and a plurality of gears (42) matched with the rack, the rack (41) is in transmission connection with an output shaft of the motor (3), and the connecting rod (5) is fixedly mounted on a rotating shaft of the gears (42).
4. The device for testing the reliability of the master switch according to claim 1, wherein the mounting frame (1) is provided with a plurality of positioning slots (111) as detection stations, the contacts are arranged at the bottom sides of the positioning slots, and the master switch, the power supply and the contacts connected through the wires can form an electric loop.
5. The device for testing the reliability of the master switch according to claim 1, wherein the mounting frame comprises a base (11) and a lifting plate (12), the detection station is arranged on the base (11), and the rotating device is arranged on the lifting plate (12); the lifting plate (12) is in transmission connection with a driving mechanism and can be arranged above the detection station in a lifting mode.
6. The device for testing the reliability of the master switch according to claim 5, wherein the driving mechanism comprises an upper jacking cylinder (6), the upper jacking cylinder (6) is arranged on the base (11), and an output ejector rod of the upper jacking cylinder (6) is arranged on the bottom surface of the lifting plate (12).
7. The device for testing the reliability of the master switch according to the claim 6, characterized in that the upper jacking cylinder (6) is connected with a pressure regulating valve.
8. The apparatus of claim 1, further comprising a controller, wherein the controller is in signal connection with the electrical connection component and the rotating device, and can control the electrical connection component to be turned on and off and control the rotating device to be turned on and off.
9. The apparatus for testing the reliability of the master switch according to claim 8, wherein a sensor is disposed in the loop of the electrical connection assembly, and the sensor is in signal connection with the controller.
10. The apparatus for testing the reliability of a master switch according to claim 9, further comprising an alarm, wherein the controller is in signal connection with the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021908056.4U CN212622944U (en) | 2020-09-03 | 2020-09-03 | Device for testing reliability of master switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021908056.4U CN212622944U (en) | 2020-09-03 | 2020-09-03 | Device for testing reliability of master switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212622944U true CN212622944U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021908056.4U Active CN212622944U (en) | 2020-09-03 | 2020-09-03 | Device for testing reliability of master switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212622944U (en) |
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2020
- 2020-09-03 CN CN202021908056.4U patent/CN212622944U/en active Active
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