On-line test equipment for mechanical characteristics of switch

Abstract

The invention relates to on-line testing equipment for mechanical characteristics of a switch. The on-line testing equipment comprises a rack; the tremor mechanism is arranged on the test platform; a switch operation mechanism; the support legs comprise an upper support leg and a lower support leg, the test platform fluctuation adjusting mechanism is arranged between the upper support leg and the lower support leg, the test platform fluctuation adjusting mechanism comprises an elastic piece and an adjustable damping piece, and the adjustable damping piece adjusts the elasticity of the elastic piece; the vibration adjusting mechanism is arranged on the test platform, the vibration adjusting mechanism comprises a containing tank, damping particles are contained in the containing tank, hanging lugs are arranged on the outer ring of an isolation plate, the isolation plate is provided with a controllable opening, the switch operation mechanism is provided with an installation groove matched with the containing tank, and the containing tank is driven by a longitudinal driving cylinder and inserted into the installation groove. The damping particles in the downward cavity in the containing tank absorb part of vibration emitted by the vibration mechanism, and the top end of the mounting groove abuts against the hanging lug so as to press the damping particles in the upward cavity in the containing tank.

Description

Technical Field

[0001] The invention relates to the field of switch characteristic detection, and in particular to an online testing device for switch mechanical characteristics. Background Art

[0002] The switch is an important component in the power system. It can disconnect or connect the two ends of the circuit and power on or off the corresponding electrical appliances. The switch contains multiple mechanical characteristics, such as pressing force, switch travel, vibration resistance and shock resistance. After the switch is produced, the mechanical characteristics of the switch need to be tested.

[0003] Among the mechanical properties of switches, anti-vibration performance is a key parameter. The application field of switches is relatively wide, for example, on large mechanical equipment such as work vehicles and ships, or in small electrical appliances such as shavers, juicers, and fascia guns. Due to the different application scenarios of switches, the frequency, amplitude, period, etc. of the external vibrations they are subjected to are also different. For example, ships are subject to low-frequency and random shaking at sea, work vehicles are subject to low-frequency and large-amplitude vibrations, and shavers, juicers, fascia guns, etc. are subject to high-frequency and small-amplitude vibrations. In the prior art, the detection of the anti-vibration mechanical properties of the switch is generally carried out by installing a vibration motor on the workbench to vibrate the switch, but the vibration and amplitude generated by this method are fixed, and it is difficult to set according to the application scenario of the switch, and it is impossible to generate vibrations of multiple amplitudes and multiple random conditions.

[0004] The purpose of the present invention is to design an online testing device for switch mechanical characteristics in view of the above-mentioned problems in the prior art. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides an online testing device for switch mechanical characteristics, which can effectively solve at least one problem existing in the above-mentioned prior art.

[0006] The technical solution of the present invention is: A switch mechanical characteristic online testing device, comprising: A frame, including a plurality of legs, and a test platform supported by the plurality of legs; A vibration mechanism is arranged on the test platform; A switch operating mechanism, comprising a switch fixing seat and an upper and lower power mechanism for operating a switch on the switch fixing seat; The test platform fluctuation adjustment mechanism, the legs include an upper leg and a lower leg, the test platform fluctuation adjustment mechanism is arranged between the upper leg and the lower leg, the test platform fluctuation adjustment mechanism includes an elastic member and an adjustable damping member, the elastic member is supported between the upper leg and the lower leg, and the adjustable damping member adjusts the elasticity of the elastic member; A vibration adjustment mechanism, which is provided in several quantities on a test platform, comprises a containing tank body, wherein damping particles are contained in the containing tank body, and different containing tank bodies are provided with different damping particles, and the interior of the containing tank body is divided into two upper and lower isolated cavities by an isolation plate which moves up and down, and the outer ring of the isolation plate is provided with a hanging ear, and the isolation plate is provided with a controllable opening, and the containing tank body is driven by a longitudinal driving cylinder, and the switch operating mechanism is provided with a mounting groove which matches the containing tank body, and after the containing tank body is driven by the longitudinal driving cylinder and inserted into the mounting groove, the damping particles in the downward cavity in the containing tank body absorb a part of the vibration emitted by the vibration mechanism, and the top end of the mounting groove abuts against the hanging ear, thereby pressing the damping particles in the upward cavity in the containing tank body.

[0007] Further, the switch operating mechanism includes a sliding seat, the sliding seat is arranged on the test platform, the sliding seat is driven by a transverse driving cylinder, and the switch fixing seat is arranged on the sliding seat; The up and down electric mechanism includes a swing rod, which is hingedly arranged above the sliding seat. One end of the swing rod is connected through a pressing drive cylinder. The pressing drive cylinder drives the swing rod to swing to operate the switch.

[0008] Furthermore, the adjustable damping member is an airbag, which is an annular columnar structure. One end of the airbag is fixedly connected to the upper leg or the lower leg. The lower leg is provided with a guide column, which extends into the inner wall of the airbag. The airbag is connected to the corresponding inflatable member. After the inflatable member inflates the airbag, the friction between the inner circle of the airbag and the guide column increases, thereby hindering the elastic force of the elastic member.

[0009] Furthermore, a pressure-maintaining valve is provided between the airbag and the inflatable member.

[0010] Furthermore, a pressing column is arranged at the top of the containing tank body. The pressing column is a hollow structure. A spring is arranged inside the pressing column. The spring in an unstressed state protrudes above the pressing column. After the containing tank body is driven by the longitudinal driving cylinder and inserted into the installation groove, the pressing column abuts against the hanging ear, and the spring applies an elastic force on the hanging ear that tends to move upward.

[0011] Furthermore, it comprises a rotating cylinder, which is driven by the longitudinal driving cylinder and drives the containing tank body to rotate.

[0012] Furthermore, the isolation plate is provided with an opening slot, and the controllable opening comprises a rotating plate hinged to one side of the opening slot, and the rotating plate is driven by a rotating motor to cover or open the opening slot.

[0013] Furthermore, the damping particles are spherical particles supported by one or more materials selected from metal, plastic, rubber, glass, and ceramic, and the diameter of the damping particles is 1-5 mm.

[0014] Furthermore, the control method includes: S1, control the controllable opening to close, so that all the damping particles are contained in the upward cavity in the containing tank body, control the longitudinal drive cylinder to drive the containing tank body to be inserted into the installation groove and pressed, control the vibration mechanism to vibrate, and during the vibration of the vibration mechanism, control the damping of the adjustable damping member to gradually increase, so that the switch operating mechanism is subjected to different fluctuations; S2, controlling the damping of the adjustable damping member to reach the maximum, controlling the controllable opening to open and drop a portion of damping particles into the downward cavity in the containing tank body, controlling the longitudinal drive cylinder to drive the containing tank body to be inserted into the installation groove and pressed, and the damping particles absorb a portion of the vibration and change the amplitude or frequency of the vibration received by the switch operating mechanism; S3, loop S2 until all the damping particles fall into the downward cavity in the containing tank, and the test is completed.

[0015] Therefore, the present invention provides the following effects and / or advantages: The present application realizes the change of the supporting rigidity between the upper leg and the lower leg through elastic parts and adjustable damping parts, thereby changing the fluctuation of the low-frequency vibration generated by the vibration mechanism on the test platform, making the amplitude and range of the fluctuation adjustable. It can be applied to different scenarios by simulating the low-frequency vibration of ships at sea or working vehicles, as well as the fluctuation of switches caused by vehicles or ships under different loads.

[0016] The present application separates the upper and lower cavities by an isolation plate, and releases particles in stages through a controllable opening. The damping strength is adjusted by the amount of particle fall, and the particles gradually increase their participation in energy consumption to achieve rapid switching and superposition of damping characteristics. High-frequency vibration energy is dissipated by particle collision and friction, and the vibration amplitude transmitted to the switch is gradually reduced to test the performance of the switch under centered vibration.

[0017] The present application realizes the implementation of the present solution by using the mounting groove to cooperate with the hanging ear to press the damping particles above it, so that the damping particles in this area do not participate in the vibration absorption effect. And the spring applies an upward movement tendency force to the hanging ear, thereby ensuring that the isolation plate always keeps the damping particles above it in a squeezing state.

[0018] The present application is provided with a rotating cylinder, which can rotate the tank body after completing a single test, so as to automatically adapt to the next measurement work without manual operation.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0020] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of one viewing angle of an embodiment of the present invention.

[0022] Figure 2 It is a structural schematic diagram of another perspective of an embodiment of the present invention.

[0023] Figure 3 It is a structural cross-sectional view of the test platform fluctuation adjustment mechanism.

[0024] Figure 4 It is a structural schematic diagram of the vibration adjustment mechanism.

[0025] Figure 5 for Figure 4 sectional view of .

[0026] Figure 6 A schematic diagram of the structure for containing the tank.

[0027] Figure 7 Schematic diagram of the structure of the isolation plate.

[0028] Figure 8 Schematic diagram of the switch operating mechanism.

[0029] Description of reference numerals: Frame 1, upper leg 11, lower leg 12, test platform 13, guide column 14, vibration mechanism 2, switch operating mechanism 3, switch fixing seat 31, upper and lower power mechanism 32, rocker arm 321, pressing drive cylinder 322, sliding seat 33, lateral drive cylinder 34, test platform fluctuation adjustment mechanism 4, elastic member 41, adjustable damping member 42, vibration adjustment mechanism 5, containing tank body 51, damping particles 52, isolation plate 53, hanging ear 54, controllable opening 55, mounting groove 56, pressing column 561, spring 562, longitudinal drive cylinder 57, rotating cylinder 58. DETAILED DESCRIPTION

[0030] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the embodiments in conjunction with the accompanying drawings: refer to Figure 1-8 , a switch mechanical characteristics online testing device, comprising: A frame 1, comprising a plurality of legs, and a test platform 13 supported by the plurality of legs; A vibration mechanism 2, arranged on the test platform 13; The switch operating mechanism 3 includes a switch fixing seat 31 and an upper and lower power mechanism 32 for operating the switch on the switch fixing seat 31; In this embodiment, the vibration mechanism 2 and the switch operating mechanism 3 can be directly adopted from the existing technology. The vibration mechanism 2 is used to emit vibration, and the switch operating mechanism 3 is used to power on and off the switch. It can be a push type, a rotary type, a travel type, or other types of operations. The push type can press the switch to turn the power on and off, the rotary type can rotate the switch to adjust the opening of the switch or turn the power on and off, and the travel type can perform a toggle-like action on the switch to turn the power on and off.

[0031] A test platform fluctuation adjustment mechanism 4, wherein the legs include an upper leg 11 and a lower leg 12, the test platform fluctuation adjustment mechanism 4 is disposed between the upper leg 11 and the lower leg 12, the test platform fluctuation adjustment mechanism 4 includes an elastic member 41 and an adjustable damping member 42, the elastic member 41 is supported between the upper leg 11 and the lower leg 12, and the adjustable damping member 42 adjusts the elasticity of the elastic member 41; In order to adapt to the low-frequency vibration of ships at sea or working vehicles, the present application is implemented by the test platform fluctuation adjustment mechanism 4. The environment in which the ship or working vehicle is located has certain vibrations or fluctuations, such as vibrations from the engine or waves, and the amplitude or frequency of the vibrations to which the switches on the ship or working vehicle are subjected to are also different under different loads, environments, or engine powers. In order to simulate the low-frequency vibration with various random conditions such as different amplitudes and frequencies, this embodiment is implemented by an elastic member 41 and an adjustable damping member 42, wherein the elastic member 41 is supported between the upper leg 11 and the lower leg 12, and plays a certain supporting role, and also has a certain buffering effect. The adjustable damping member 42 adjusts the elasticity of the elastic member 41. It can be understood that when the adjustable damping member 42 reduces the elasticity of the spring 562, the rigid component of the supporting force of the spring 562 on the upper leg 11 and the lower leg 12 increases, thereby changing the natural frequency of the system composed of the switch operating mechanism 3, the frame 1 and other components, thereby changing the vibration of the switch operating mechanism 3 by the vibration mechanism 2, and then simulating low-frequency fluctuations under various conditions.

[0032] A plurality of vibration adjustment mechanisms 5 are provided on the test platform 13. The vibration adjustment mechanism 5 includes a containing tank 51, wherein the containing tank 51 contains damping particles 52. Different containing tanks 51 have different damping particles 52 arranged therein. The interior of the containing tank 51 is divided into two upper and lower isolated cavities by an isolation plate 53 that moves up and down. The outer ring of the isolation plate 53 is provided with a hanging ear 54. The isolation plate 53 is provided with a controllable opening 55. The containing tank 51 is driven by a longitudinal driving cylinder 57. The switch operating mechanism 3 is provided with a mounting groove 56 that matches the containing tank 51. After the containing tank 51 is driven by the longitudinal driving cylinder 57 and inserted into the mounting groove 56, the damping particles 52 in the cavity facing downward in the containing tank 51 absorb a portion of the vibration emitted by the vibration mechanism 2. The top of the mounting groove 56 abuts against the hanging ear 54, thereby pressing the damping particles 52 in the cavity facing upward in the containing tank 51.

[0033] The vibration adjustment mechanism 5 is also one of the core improvements of the present application.

[0034] First, the containing tank 51 is separated into two cavities, one above and one below, by the isolation plate 53, and the isolation plate 53 is provided with a controllable opening 55, so the controllable opening 55 can be opened or closed, thereby releasing a part of the damping particles 52 to fall into the cavity facing downward. The damping particles 52 below the isolation plate 53 have a certain space to move. After the vibration mechanism 2 vibrates, the movable damping particles 52 collide and rub against each other, thereby absorbing a part of the vibration received by the switch operating mechanism 3, and reducing the frequency or amplitude of the vibration emitted by the vibration mechanism 2. By opening or closing the controllable opening 55, the number of movable damping particles 52 below the isolation plate 53 can be controlled, thereby changing the vibration absorption effect of the vibration adjustment mechanism 5, and finally changing the vibration received by the switch operating mechanism 3.

[0035] In addition, the containing tank body 51 is driven by a longitudinal driving cylinder 57 and a hanging ear 54 is provided on the isolation plate 53. The hanging ear 54 is provided on the outer side of the containing tank body 51, so pushing the hanging ear 54 can push the isolation plate 53 to move. When the containing tank body 51 is inserted into the mounting groove 56, the isolation plate 53 is pushed upward to squeeze the space of the damping particles 52 above the isolation plate 53, so that they cannot collide or rub against each other, etc., that is, the damping particles 52 above the isolation plate 53 are squeezed and cannot move. At this time, the damping particles 52 in this area do not work and do not affect the vibration.

[0036] By setting different damping particles 52 in different containing tanks 51, for example, setting damping particles 52 of different materials or particle sizes in the containing tank 51, the vibration of the switch can be controlled by the different materials or particle sizes of the damping particles 52 having different absorption frequencies, absorption amplitudes, absorption rates, etc.

[0037] By using different damping particles 52 and changing the number of movable damping particles 52 , the vibration absorption effect is also different, thereby simulating vibrations of various amplitudes and frequencies, and then performing a full range of tests on the switch.

[0038] Further, the switch operating mechanism 3 includes a sliding seat 33, the sliding seat 33 is arranged on the test platform 13, the sliding seat 33 is driven by a transverse driving cylinder 34, and the switch fixing seat 31 is arranged on the sliding seat 33; The up and down electric mechanism 32 includes a swing rod 321, which is hingedly arranged above the sliding seat 33. One end of the swing rod 321 is connected through a pressing drive cylinder 322, and the pressing drive cylinder 322 drives the swing rod 321 to swing so as to operate the switch.

[0039] In this embodiment, the sliding seat 33 can slide left and right, thereby driving the switch fixing seat 31 to approach or away from the power-on and power-off mechanism 32, so that the power-on and power-off mechanism 32 can perform power-on and power-off operations on the switch.

[0040] Furthermore, the adjustable damping member 42 is an airbag, which is an annular columnar structure. One end of the airbag is fixedly connected to the upper leg 11 or the lower leg 12. The lower leg 12 is provided with a guide column 14. The guide column 14 extends into the inner wall of the airbag. The airbag is connected to a corresponding inflatable member. After the inflatable member inflates the airbag, the friction between the inner circle of the airbag and the guide column 14 increases, thereby hindering the elastic force of the elastic member 41.

[0041] In this embodiment, the annular columnar structure of the airbag allows the guide column 14 to be inserted into the middle space therein. After the airbag is inflated, the volume of the airbag increases, compressing the middle space therein, thereby forming a structure similar to gripping the guide column 14, so that the spring 562 needs to overcome the friction between the inner circle of the airbag and the guide column 14 during the compression or expansion process, thereby increasing or decreasing the deformation ability of the spring 562.

[0042] Furthermore, a pressure-maintaining valve is provided between the airbag and the inflatable member.

[0043] The pressure-maintaining valve can maintain the air pressure in the airbag, thereby maintaining the friction between the airbag and the guide column 14 .

[0044] Furthermore, a pressing column 561 is provided at the top of the containing tank body 51. The pressing column 561 is a hollow structure. A spring 562 is provided inside the pressing column 561. The spring 562 in an unstressed state protrudes above the pressing column 561. After the containing tank body 51 is driven by the longitudinal driving cylinder 57 and inserted into the mounting groove 56, the pressing column 561 abuts against the hanging ear 54, and the spring 562 applies an elastic force to the hanging ear 54 that tends to move upward.

[0045] After the container 51 is inserted into the mounting groove 56, the container groove and the container 51 are both subjected to the vibrations generated by the vibration mechanism 2, and relative movement may occur between the two, thereby changing the pressing effect of the isolation plate 53 on the damping particles 52 above it, causing the damping particles 52 to produce relative movement, thereby absorbing part of the vibrations and interfering with the test process. Therefore, in this embodiment, a spring 562 is provided in the pressing column 561, and the spring 562 can generate an upward elastic force to further press the isolation plate 53 upward, so that the isolation plate 53 always tightly squeezes the damping particles 52 above it during operation, so that it cannot move relative to each other.

[0046] Furthermore, it includes a rotating cylinder 58 , which is driven by the longitudinal driving cylinder 57 , and the rotating cylinder 58 drives the containing tank body 51 to rotate.

[0047] After the test is completed, most of the damping particles 52 above the isolation plate 53 fall below it. At this time, the containing tank body 51 is rotated 180° by the rotation of the rotary cylinder 58, so that the next test can be automatically started.

[0048] Furthermore, the isolation plate 53 is provided with an opening slot, and the controllable opening 55 includes a rotating plate hinged to one side of the opening slot, and the rotating plate is driven by a rotating motor to cover or open the opening slot.

[0049] In this embodiment, the falling time of the damping particles 52 can be controlled by rotating the rotating plate, so that the falling weight can be roughly adjusted, thereby achieving damping particles 52 of different capacities to absorb vibrations of different amplitudes and frequencies to generate corresponding vibrations.

[0050] Furthermore, the damping particles 52 are spherical particles supported by one or more materials selected from metal, plastic, rubber, glass, and ceramics, and the diameter of the damping particles 52 is 1-5 mm.

[0051] In this embodiment, the damping particles 52 are directly adopted from the prior art.

[0052] Furthermore, the control method includes: S1, controlling the controllable opening 55 to be closed, so that all the damping particles 52 are contained in the upward cavity of the containing tank 51, controlling the longitudinal drive cylinder 57 to drive the containing tank 51 to be inserted into the mounting groove 56 and pressed, controlling the vibration mechanism 2 to vibrate, and during the vibration of the vibration mechanism 2, controlling the damping of the adjustable damping member 42 to gradually increase, so that the switch operating mechanism 3 is subjected to different fluctuations; S2, controlling the damping of the adjustable damping member 42 to reach the maximum, controlling the controllable opening 55 to open and drop a portion of the damping particles 52 into the cavity facing downward in the receiving tank 51, controlling the longitudinal drive cylinder 57 to drive the receiving tank 51 to insert into the mounting groove 56 and press it, and the damping particles 52 absorb a portion of the vibration to change the amplitude or frequency of the vibration received by the switch operating mechanism 3; S3, loop S2 until all the damping particles 52 fall into the downward cavity in the containing tank 51, and the test is completed.

[0053] In the present method, step S1 corresponds to controlling the switch operating mechanism 3 to be subjected to different fluctuations. At this time, the vibration mechanism 2 can be set to work in the low-frequency region so that it can generate large and low-frequency fluctuations to simulate sea fluctuations, vehicle sharp turns, etc. The damping of the adjustable damping member 42 is controlled to gradually increase, and the support rigidity between the upper leg 11 and the lower leg 12 can be controlled so that they can fluctuate to different degrees.

[0054] S2-S3 of the present method can control the number of damping particles 52 falling below the isolation plate 53, and can also make different proportions of the falling numbers of different vibration adjustment mechanisms 5, thereby achieving a variety of absorption frequency and amplitude proportions to expand more vibrations, thereby performing all-round vibration testing on the switch.

[0055] It should be noted that in the claims, any reference signs placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claim. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0056] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Claims

1. A switch mechanical characteristics online testing device, characterized in that: include: A frame (1) comprising a plurality of legs and a test platform (13) supported by the plurality of legs; A vibration mechanism (2) arranged on the test platform (13); A switch operating mechanism (3), comprising a switch fixing seat (31) and an upper and lower power mechanism (32) for operating a switch on the switch fixing seat (31); A test platform fluctuation adjustment mechanism (4), wherein the legs comprise an upper leg (11) and a lower leg (12), the test platform fluctuation adjustment mechanism (4) being arranged between the upper leg (11) and the lower leg (12), the test platform fluctuation adjustment mechanism (4) comprising an elastic member (41) and an adjustable damping member (42), the elastic member (41) being supported between the upper leg (11) and the lower leg (12), and the adjustable damping member (42) adjusting the elasticity of the elastic member (41); A plurality of vibration adjustment mechanisms (5) are provided on the test platform (13), wherein the vibration adjustment mechanism (5) comprises a containing tank (51), wherein the containing tank (51) contains damping particles (52), wherein different containing tanks (51) contain different damping particles (52), wherein the inside of the containing tank (51) is divided into two cavities isolated from each other by an isolation plate (53) that moves up and down, wherein the outer ring of the isolation plate (53) is provided with a hanging ear (54), wherein the isolation plate (53) is provided with a controllable opening (55), and wherein the containing tank (51) is provided with a controllable opening (55). The switch operating mechanism (3) is driven by a longitudinal drive cylinder (57), and is provided with a mounting groove (56) that matches the accommodating tank body (51). After the accommodating tank body (51) is driven by the longitudinal drive cylinder (57) and inserted into the mounting groove (56), the damping particles (52) in the downward cavity of the accommodating tank body (51) absorb a part of the vibration emitted by the vibration mechanism (2), and the top end of the mounting groove (56) abuts against the hanging ear (54), thereby pressing the damping particles (52) in the upward cavity of the accommodating tank body (51).

2. The switch mechanical characteristics online testing device according to claim 1, characterized in that: The switch operating mechanism (3) comprises a sliding seat (33), the sliding seat (33) is arranged on the test platform (13), the sliding seat (33) is driven by a transverse driving cylinder (34), and the switch fixing seat (31) is arranged on the sliding seat (33); The up and down electric mechanism (32) comprises a swing rod (321) hingedly arranged above the sliding seat (33); one end of the swing rod (321) is connected via a pressing drive cylinder (322); the pressing drive cylinder (322) drives the swing rod (321) to swing, thereby operating the switch.

3. The switch mechanical characteristic online testing device according to claim 1, characterized in that: The adjustable damping member (42) is an airbag, which is an annular columnar structure. One end of the airbag is fixedly connected to the upper leg (11) or the lower leg (12). The lower leg (12) is provided with a guide column (14). The guide column (14) extends into the inner wall of the airbag. The airbag is connected to a corresponding inflatable member. After the inflatable member inflates the airbag, the friction between the inner ring of the airbag and the guide column (14) increases, thereby hindering the elastic force of the elastic member (41).

4. The switch mechanical characteristic online testing device according to claim 3, characterized in that: A pressure-maintaining valve is arranged between the airbag and the inflatable member.

5. The switch mechanical characteristic online testing device according to claim 1, characterized in that: A pressing column (561) is arranged at the top of the containing tank body (51). The pressing column (561) is a hollow structure. A spring (562) is arranged inside the pressing column (561). The spring (562) in an unstressed state protrudes above the pressing column (561). After the containing tank body (51) is driven by the longitudinal drive cylinder (57) and inserted into the mounting groove (56), the pressing column (561) abuts against the hanging ear (54), and the spring (562) applies an elastic force to the hanging ear (54) to cause the hanging ear (54) to move upward.

6. The switch mechanical characteristic online testing device according to claim 1, characterized in that: It comprises a rotating cylinder (58), wherein the rotating cylinder (58) is driven by the longitudinal driving cylinder (57), and the rotating cylinder (58) drives the containing tank body (51) to rotate.

7. The switch mechanical characteristic online testing device according to claim 1, characterized in that: The isolation plate (53) is provided with an opening slot, and the controllable opening (55) comprises a rotating plate hinged to one side of the opening slot, and the rotating plate is driven by a rotating motor to cover or open the opening slot.

8. The switch mechanical characteristic online testing device according to claim 1, characterized in that: The damping particles (52) are spherical particles supported by one or more materials selected from metal, plastic, rubber, glass, and ceramics, and the diameter of the damping particles (52) is 1-5 mm.

9. The switch mechanical characteristic online testing device according to claim 1, characterized in that: Control methods include: S1, controlling the controllable opening (55) to close so that the damping particles (52) are all contained in the upwardly facing cavity of the containing tank (51), controlling the longitudinal drive cylinder (57) to drive the containing tank (51) to be inserted into the mounting groove (56) and pressed, controlling the vibration mechanism (2) to vibrate, and during the vibration of the vibration mechanism (2), controlling the damping of the adjustable damping member (42) to gradually increase so that the switch operating mechanism (3) is subjected to different fluctuations; S2, controlling the damping of the adjustable damping member (42) to reach a maximum, controlling the controllable opening (55) to open and drop a portion of the damping particles (52) into the downwardly facing cavity in the accommodating tank (51), controlling the longitudinal drive cylinder (57) to drive the accommodating tank (51) to be inserted into the mounting groove (56) and pressed, and the damping particles (52) absorb a portion of the vibration to change the amplitude or frequency of the vibration to which the switch operating mechanism (3) is subjected; S3, looping S2 until all the damping particles (52) fall into the downwardly facing cavity in the containing tank (51), and the test is completed.

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