CN113866626B - Relay performance inspection device for limit detection - Google Patents
Relay performance inspection device for limit detection Download PDFInfo
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- CN113866626B CN113866626B CN202111360557.2A CN202111360557A CN113866626B CN 113866626 B CN113866626 B CN 113866626B CN 202111360557 A CN202111360557 A CN 202111360557A CN 113866626 B CN113866626 B CN 113866626B
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- 238000007689 inspection Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
Abstract
Aiming at the defect that an inspection device for inspecting a relay in the prior art cannot simulate complex environmental conditions to inspect the relay, the application provides a relay performance inspection device for limit detection, which belongs to the technical field of relay inspection equipment and comprises an inspection box and a performance detector, wherein the bottom of an inner cavity of the inspection box is connected with a sliding block in a sliding manner, an installation seat is arranged above the sliding block, and a swinging piece is arranged between the sliding block and the installation seat; the mounting seat is provided with a relay socket and a fastening mechanism; a driving mechanism is also fixedly arranged in the inspection box; the inspection box is externally provided with a controller. The application can simulate the working environment of the relay in the shaking state, and further test the performance of the relay in the shaking state.
Description
Technical Field
The application belongs to the technical field of relay inspection equipment, and particularly relates to a relay performance inspection device for limit detection.
Background
The relay is an electric control device, and is an electric appliance that causes a predetermined step change in the controlled quantity in an electric output circuit when the change in the input quantity reaches a prescribed requirement. The relay is provided with a control system and a controlled system, is generally applied to an automatic control circuit, and plays roles of automatic adjustment, safety protection, a switching circuit and the like in the circuit. At present, the relay is generally only tested whether the relay can normally operate in a conventional environment, and the relay cannot be tested under some complex environmental conditions, such as the performance of the relay under shaking conditions, so that detailed data of the relay operating under the complex environmental conditions are difficult to obtain.
Disclosure of Invention
Aiming at the defect that an inspection device for inspecting a relay in the prior art cannot simulate the vibration condition to inspect the relay, the application provides a relay performance inspection device for limit detection, which can simulate the vibration condition to inspect the relay.
The application aims at realizing the following technical scheme: the relay performance inspection device for limit detection comprises an inspection box and a performance detector for detecting the performance of a relay, wherein the inspection box comprises a box body provided with an opening and a sealing cover capable of completely sealing the opening;
the bottom of the inner cavity of the inspection box is slidably connected with a sliding block which can only do linear reciprocating motion, a mounting seat is arranged above the sliding block, a plurality of elastic swinging pieces which are used for supporting the mounting seat are arranged between the sliding block and the mounting seat, the swinging pieces are mutually parallel and distributed along the sliding direction of the sliding block, grooves which are in one-to-one correspondence with the swinging pieces are arranged at the upper end of the sliding block and the lower end of the mounting seat, the end parts of the swinging pieces are embedded into the corresponding grooves, at least two through grooves which are transversely arranged and sequentially penetrate through all the grooves are arranged on the sliding block and the mounting seat, through holes which are in one-to-one correspondence with the through grooves are also arranged on the swinging pieces, when the swinging pieces are embedded into the grooves, the through holes are aligned with the corresponding through grooves, the side walls around the swinging pieces are attached to the inner walls of the grooves, and limit rods which penetrate through the corresponding through holes on all the swinging pieces and fix all the swinging pieces in the grooves are detachably and fixedly connected in the through grooves;
the upper end of the mounting seat is detachably and fixedly connected with a relay socket used for mounting a relay and electrically connected with the relay, the mounting seat is also provided with a fastening mechanism used for fixing the relay on the relay socket, the fastening mechanism comprises a supporting frame, the supporting frame comprises a transverse plate positioned above the mounting seat, two ends of the transverse plate are fixedly connected with connecting pieces, the connecting pieces are slidably arranged on the mounting seat, and locking bolts capable of locking the connecting pieces and the mounting seat are screwed on the connecting pieces;
the transverse plate is provided with an adjusting groove penetrating through the strip-shaped structure of the transverse plate, the length direction of the adjusting groove is vertical to the sliding direction of the supporting frame, the lower end surface of the transverse plate is fixedly provided with first clamping teeth distributed along the length direction of the adjusting groove at two sides of the adjusting groove, the position of the adjusting groove is provided with a compressing mechanism capable of sliding along the length direction of the adjusting groove and longitudinally moving, the compressing mechanism comprises an upper plate positioned above the transverse plate, the lower end surface of the upper plate is fixedly provided with a guide sleeve with an annular structure, the edges of the left side and the right side of the upper plate protrude outwards relative to the left side and the right side of the guide sleeve, the guide sleeve penetrates through the adjusting groove, the left side and the right side of the guide sleeve are respectively attached to the left inner wall and the right inner wall of the adjusting groove, the lower end of the guide sleeve is sleeved with a pressing block which can only longitudinally slide along the guide sleeve, a lower plate which is arranged around the guide sleeve and is positioned below the transverse plate is fixedly arranged on the outer side surface of the guide sleeve, a second latch which is matched with the first latch is arranged on the upper end surface of the lower plate, a first screw hole which penetrates through the upper plate is arranged on the upper plate, a second screw hole is arranged at the upper end of the pressing block, an adjusting piece is arranged between the upper plate and the pressing block and comprises a first screw rod which is in threaded connection with the first screw hole, a first knob which is positioned above the upper plate is fixedly arranged at the upper end of the first screw rod, a second screw rod which is in threaded connection with the second screw hole is fixedly arranged at the lower end of the first screw rod, and the spiral directions of external threads of the first screw rod and the second screw rod are opposite;
the inside of the inspection box is also fixedly provided with a driving mechanism which is used for driving the sliding block seat to linearly reciprocate and can adjust the movement amplitude and frequency of the sliding block;
and a controller for controlling the driving mechanism is further arranged outside the inspection box, and the performance detector is electrically connected with the relay socket.
Preferably, the through groove on the sliding block penetrates through the front end and the rear end of the sliding block, the through groove comprises a third screw hole, a connecting hole and a fourth screw hole which are sequentially arranged, the third screw hole and the fourth screw hole are respectively arranged at the two ends of the sliding block, the connecting hole penetrates through all the grooves, the inner diameter of the third screw hole is larger than that of the connecting hole, and the inner diameter of the connecting hole is larger than that of the fourth screw hole; the limiting rod comprises a limiting part with a cylindrical structure, wherein the outer diameter of the limiting part, the inner diameter of the connecting hole and the inner diameter of the through hole are equal, one end of the limiting part is fixedly connected with a first stud, the other end of the limiting part is fixedly provided with a second stud, the limiting part is sleeved in the connecting hole, the first stud is in threaded connection with a third screw hole, the second stud is in threaded connection with a fourth screw hole, and one end of the first stud opposite to the limiting part is fixedly provided with a second knob; the through groove on the mounting seat is identical to the through groove on the sliding block in structure, and the limiting rod on the mounting seat is identical to the limiting rod on the sliding block in structure.
Preferably, a plug is screwed in the fourth screw hole, a spring positioned in the fourth screw hole is fixedly arranged on the plug, and when the limiting rod is installed in the through groove, the second stud extrudes and deforms the spring. The arrangement of the spring can generate a transverse thrust to the plug and the limiting rod, so that the thread friction force between the second stud and the fourth screw hole and between the first stud and the third screw hole on the limiting rod is increased, the limiting rod is not easy to separate from the through groove under the action of no external force, and the plug is not easy to separate from the fourth screw hole.
Preferably, the two sides of the mounting seat are respectively provided with a guide groove which is transversely arranged, the connecting piece comprises a side plate which is vertically and fixedly connected with the transverse plate, and the lower end of the side plate is fixedly provided with a sliding block which is embedded into the guide grooves.
Preferably, the driving mechanism comprises a hinge seat fixed at one end of the sliding block and a first stepping motor fixed in the box body, a cam is vertically and fixedly connected to a rotating shaft of the first stepping motor, a connecting rod with adjustable length is arranged between the hinge seat and the cam, the connecting rod comprises a connecting sleeve hinged with the hinge seat, a connecting rod capable of moving along the length direction of the connecting sleeve is sleeved at one end of the connecting sleeve opposite to the hinge seat, a screw rod capable of rotating is arranged in the connecting sleeve, a second stepping motor for driving the screw rod to rotate is fixedly arranged in the connecting sleeve, the first stepping motor and the second stepping motor are respectively and electrically connected with the controller, the controller can be used for controlling the rotating speed of the rotating shaft of the first stepping motor and the rotating direction of the rotating shaft of the second stepping motor, a fifth screw hole is formed in one end of the connecting rod extending into the connecting sleeve, the screw rod is connected with the fifth screw hole, and the end of the connecting rod opposite to the connecting sleeve is rotationally connected with the cam. The distance measuring device is characterized in that a distance measuring sensor is further fixedly arranged in the box body, the distance measuring sensor is arranged on an extension line of the moving direction of the sliding block and used for measuring the distance change between the distance measuring sensor and the sliding block, and the distance measuring sensor is electrically connected with the controller.
Preferably, a visual window is arranged on the side wall of the box body, and a transparent plate is fixedly arranged at the position of the visual window.
Preferably, the upper end surface of the mounting seat is provided with a plurality of mounting screw holes, and the relay socket is fastened on the mounting seat through a fixing bolt which is in threaded connection with the mounting screw holes.
Compared with the prior art, the application has the following beneficial effects: according to the application, the sliding block can be driven to do linear reciprocating motion through the driving mechanism, the relay can be controlled to swing through the driving mechanism and the swinging piece, the swinging frequency and the amplitude are adjustable, so that the working environment of the relay in a limited swinging state can be simulated, the performance of the relay in a complex environment can be further checked, meanwhile, the relay is reinforced through the fastening mechanism, and the bad influence on the checking data caused by the contact of the relay and a relay socket in the swinging simulation state can be avoided.
Drawings
FIG. 1 is a perspective view of the present application;
FIG. 2 is a schematic diagram of the internal structure of the present application;
FIG. 3 is a perspective view of a support frame;
FIG. 4 is a perspective view of a hold-down mechanism;
FIG. 5 is a schematic view of the internal structure of the pressing mechanism
FIG. 6 is a perspective view of a slider with a stop lever mounted thereto;
FIG. 7 is a top view of a slider with a stop bar mounted thereto;
FIG. 8 is a cross-sectional view taken at A-A of FIG. 7;
FIG. 9 is a perspective view of a wobble plate;
FIG. 10 is a perspective view of a stop lever;
FIG. 11 is a schematic view of the internal structure of the connecting rod;
FIG. 12 is a schematic view of the structure between the components of the present application connected to the controller;
the marks in the figure: 1. the performance detector, 5, the box body, 6, the sealing cover, 7, the buckle, 8, the sliding block, 9, the mounting seat, 10, the swinging plate, 11, the groove, 12, the through hole, 13, the limiting rod, 14, the third screw hole, 15, the connecting hole, 16, the fourth screw hole, 17, the limiting part, 18, the first stud, 19, the second stud, 20, the second knob, 21, the plug, 22, the spring, 23, the guide groove, 24, the relay socket, 25, the transverse plate, 26, the side plate, 27, the sliding block, 28, the locking bolt, 29, the adjusting groove, 30, the first tooth, 31 and the pressing mechanism, 32, upper plate, 33, uide bushing, 34, briquetting, 35, lower plate, 36, second latch, 37, first screw, 38, second screw, 39, adjusting piece, 40, first screw, 41, first knob, 42, second screw, 43, actuating mechanism, 44, articulated seat, 45, first stepper motor, 46, cam, 47, connecting rod, 48, adapter sleeve, 49, connecting rod, 50, lead screw, 51, second stepper motor, 52, controller, 53, fifth screw, 57, ranging sensor, 59, visual window, 60, transparent plate.
Detailed Description
The application is further described below with reference to embodiments shown in the drawings in which:
example 1
As shown in fig. 1-12, a relay performance inspection device for limit detection comprises an inspection box and a performance detector 1 for detecting relay performance, wherein the inspection box comprises a box body 5 provided with an opening and a sealing cover 6 capable of completely sealing the opening, and detachable connection is realized between the box body 5 and the sealing cover 6 through a buckle 7.
The bottom of the inner cavity of the box body 5 is slidably connected with a sliding block 8 which can only do linear reciprocating motion, an installation seat 9 is arranged above the sliding block 8, seven swinging plates 10 which are used for supporting the installation seat 9 and are elastic are arranged between the sliding block 8 and the installation seat 9, the swinging plates 10 are mutually parallel and distributed along the sliding direction of the sliding block 8, grooves 11 which are in one-to-one correspondence with the swinging plates 10 are arranged at the upper end of the sliding block 8 and the lower end of the installation seat 9, through grooves which are transversely arranged and sequentially penetrate through all the grooves 11 are arranged on the sliding block 8 and the installation seat 9, through holes 12 which are in one-to-one correspondence with the through grooves are also formed in the swinging plates 10, when the swinging plates 10 are embedded into the grooves 11, the through holes 12 are aligned with the corresponding through grooves, the side walls around the swinging plates 10 are attached to the inner walls of the grooves 11, and limit rods 13 which penetrate through the corresponding through holes 12 on all the swinging plates 10 and fix all the swinging plates 10 in the grooves 11 are detachably fixedly connected in the through grooves. The through grooves on the sliding block 8 penetrate through the front end and the rear end of the sliding block 8, the through grooves comprise a third screw hole 14, a connecting hole 15 and a fourth screw hole 16 which are sequentially arranged, the third screw hole 14 and the fourth screw hole 16 are respectively arranged at the two ends of the sliding block 8, the spiral directions of internal threads of the third screw hole 14 and the fourth screw hole 16 are the same, the connecting hole 15 penetrates through all the grooves 11, the inner diameter of the third screw hole 14 is larger than the inner diameter of the connecting hole 15, and the inner diameter of the connecting hole 15 is larger than the inner diameter of the fourth screw hole 16; the limiting rod 13 comprises a limiting part 17 with a cylindrical structure, the outer diameter of the limiting part 17, the inner diameter of the connecting hole 15 and the inner diameter of the through hole 12 are equal, one end of the limiting part 17 is fixedly connected with a first stud 18, the other end of the limiting part 17 is fixedly provided with a second stud 19, the limiting part 17 is sleeved in the connecting hole 15, the first stud 18 is in threaded connection with the third screw hole 14, the second stud 19 is in threaded connection with the fourth screw hole 16, and one end of the first stud 18 opposite to the limiting part 17 is fixedly provided with a second knob 20; the through groove on the mounting seat 9 is identical to the through groove on the sliding block 8 in structure, and the limiting rod 13 on the mounting seat 9 is identical to the limiting rod 13 on the sliding block 8 in structure. The fourth screw hole 16 is internally and spirally connected with a plug 21, a spring 22 positioned in the fourth screw hole 16 is fixedly arranged on the plug 21, and when the limiting rod 13 is installed in the through groove, the second stud 19 extrudes and deforms the spring 22.
The left and right sides of mount pad 9 respectively is equipped with a guide way 23 that transversely sets up, the mount pad 9 up end is equipped with a plurality of installation screw, and the fixed connection is dismantled to mount pad 9 upper end and is used for installing relay and with relay electric connection's relay socket 24, relay socket 24 is in through setting up the fixing bolt fastening with the installation screw spiro union on the mount pad 9. The mounting seat 9 is also provided with a fastening mechanism for fixing the relay on the relay socket 24, the fastening mechanism comprises a supporting frame, the supporting frame comprises a transverse plate 25 positioned above the mounting seat 9, two ends of the transverse plate 25 are fixedly connected with connecting pieces, each connecting piece comprises a side plate 26 which is fixedly connected with the transverse plate 25 vertically, and the lower end of each side plate 26 is fixedly provided with a sliding block 27 which is embedded into the corresponding guide groove 23 and can only slide along the corresponding guide groove 23. A locking bolt 28 capable of locking the connecting piece and the mounting seat 9 is screwed on the sliding block 27 on the connecting piece.
The transverse plate 25 is provided with an adjusting groove 29 penetrating through the strip-shaped structure of the transverse plate 25, the length direction of the adjusting groove 29 is vertical to the sliding direction of the supporting frame, the lower end surface of the transverse plate 25 is fixedly provided with first latches 30 distributed along the length direction of the adjusting groove 29 at two sides of the adjusting groove 29, the position of the adjusting groove 29 is provided with a pressing mechanism 31 capable of sliding along the length direction of the adjusting groove 29 and longitudinally moving, the pressing mechanism 31 comprises an upper plate 32 positioned above the transverse plate 25, the lower end surface of the upper plate 32 is fixedly provided with a guide sleeve 33 with an annular structure, the left and right side edges of the upper plate 32 protrude outwards relative to the left and right sides of the guide sleeve 33, the guide sleeve 33 penetrates through the adjusting groove 29, the left and right sides of the guide sleeve 33 are respectively attached to the left and right inner walls of the adjusting groove 29, the lower end of the guide sleeve 33 is sleeved with a pressing block 34 which can only longitudinally slide along the guide sleeve 33, a lower plate 35 which is arranged around the guide sleeve 33 and is positioned below the transverse plate 25 is fixedly arranged on the outer side surface of the guide sleeve 33, a second latch 36 which is matched with the first latch 30 is arranged on the upper end surface of the lower plate 35, a first screw hole 37 which penetrates through the upper plate 32 is arranged on the upper plate 32, a second screw hole 38 is arranged at the upper end of the pressing block 34, an adjusting piece 39 is arranged between the upper plate 32 and the pressing block 34, the adjusting piece 39 comprises a first screw rod 40 which is in threaded connection with the first screw hole 37, a first knob 41 which is positioned above the upper plate 32 is fixedly arranged at the upper end of the first screw rod 40, a second screw rod 42 which is in threaded connection with the second screw hole 38 is fixedly arranged at the lower end of the first screw rod 40, and external threads on the first screw rod 40 are opposite to the external threads on the second screw rod 42.
The inspection box is internally and fixedly provided with a driving mechanism 43 for driving the slide block 8 to linearly reciprocate and adjusting the movement amplitude and frequency of the slide block 8, the driving mechanism 43 comprises a hinge seat 44 fixed at one end of the slide block 8 and a first stepping motor 45 fixed in the box body 5, a cam 46 is vertically and fixedly connected to a rotating shaft of the first stepping motor 45, a connecting rod 47 with adjustable length is arranged between the hinge seat 44 and the cam 46, the connecting rod 47 comprises a connecting sleeve 48 hinged with the hinge seat 44, one end, opposite to the hinge seat 44, of the connecting sleeve 48 is sleeved with a connecting rod 49 which can only move along the length direction of the connecting sleeve 48, a screw rod 50 capable of rotating is arranged in the connecting sleeve 48, and a second stepping motor 51 for driving the screw rod 50 to rotate is fixedly arranged in the connecting sleeve 48. The end of the connecting rod 49 extending into the connecting sleeve 48 is provided with a fifth screw hole 53, the screw rod 50 is connected with the fifth screw hole 53, and the end of the connecting rod 49 opposite to the connecting sleeve 48 is rotatably connected with the cam 46.
The box 5 is also fixedly provided with a distance measuring sensor 57, and the distance measuring sensor 57 is arranged on an extension line of the moving direction of the sliding block 8 and is used for measuring the distance change between the distance measuring sensor 57 and the sliding block 8. The distance measuring sensor 57 is electrically connected to the controller 52.
A controller 52 for controlling the driving mechanism 43 is further arranged outside the inspection box, the controller 52 is a PLC controller 52, and the performance detector 1 is electrically connected with the relay socket 24; the first stepper motor 45 and the second stepper motor 51 are respectively electrically connected with the controller 52, and the controller 52 can be used for controlling the rotation speed of the rotating shaft of the first stepper motor 45 and controlling the rotation speed and the rotation direction of the rotating shaft of the second stepper motor 51.
The side wall of the box body 5 is provided with a visual window 59, and a transparent plate 60 is fixedly arranged at the position of the visual window 59. The inside of the inspection box can be observed through the transparent plate 60.
The application process of the application is as follows: the relay socket 24 with corresponding specification is selected according to the relay to be detected, the relay socket 24 is fixed on the mounting seat 9 through the fixing bolt, then the relay is mounted on the relay socket 24, the relay is electrically connected with the relay socket 24, the locking bolt 28 is loosened, the supporting frame is moved to the upper side of the relay socket 24, the locking bolt 28 is screwed, then the pressing mechanism 31 is transversely moved, the pressing mechanism 31 is moved to a proper position along the adjusting groove 29, the adjusting piece 39 on the pressing mechanism 31 is rotated to enable the adjusting piece 39 to move downwards, the pressing piece 34 can move downwards at a higher speed due to the fact that the external threads of the first screw 40 on the adjusting piece 39 are opposite to the external threads of the second screw 42, so that the pressing piece 34 is pressed on the relay, the adjusting piece 39 is continuously rotated, the pressing piece 34 continuously extends towards the lower side of the guide sleeve 33, the guide sleeve 33 is lifted upwards until the second clamping tooth 36 on the lower plate 35 is meshed with the first clamping tooth 30 on the lower end face of the transverse plate 25, at the moment, the pressing mechanism 31 can press the relay on the relay socket 24, meanwhile, the pressing mechanism 31 can be continuously moved to the position of the relay on the relay 24, the pressing mechanism 31 can be continuously detected, and the pressing mechanism can be continuously moved to the position on the relay 24, and the relay can be completely detected. The driving mechanism 43 is controlled to operate by the controller 52, the first stepping motor 45 drives the cam 46 to rotate, the cam 46 drives the connecting rod 47 to operate, the sliding block 8 is driven to reciprocate by the hinging seat 44, the sliding block 8 is connected with the mounting seat 9 through the swinging piece 10, when the sliding block 8 moves forwards under the inertia action of the mounting seat 9, the mounting seat 9 deflects backwards relative to the sliding block 8, the sliding block 8 continuously performs linear reciprocating motion, the mounting seat 9 can swing forwards and backwards, the relay and the relay socket 24 swing forwards and backwards along with the mounting seat 9, so that the state of the relay under the shaking environment condition is simulated, and the performance detector 1 is used for detecting the performance of the relay. The controller 52 can control the first stepping motor 45 to change the rotation speed, so that the movement frequency of the sliding block 8 can be changed, and the swinging frequency of the mounting seat 9 can be changed. The controller 52 can also control the driving mechanism 43 to adjust the movement amplitude of the sliding block 8, the controller 52 sets the rotation speed of the second stepping motor 51, and the controller 52 controls the ranging sensor 57 to start working, when the driving mechanism 43 drives the sliding block 8 to gradually approach the ranging sensor 57, the controller 52 controls the second stepping motor 51 to rotate forward, drives the lead screw 50 to rotate forward, at the same time, the connecting rod 49 gradually moves towards the outside of the connecting sleeve 48, i.e. the length of the connecting rod 47 increases, when the driving mechanism 43 drives the sliding block 8 to gradually move away from the ranging sensor 57, the controller 52 controls the second stepping motor 51 to rotate reversely, drives the lead screw 50 to rotate reversely, at the same time, the connecting rod 49 gradually moves towards the inside of the connecting sleeve 48, i.e. the length of the connecting rod 47 shortens, thus the movement amplitude of the sliding block 8 can be changed, the swing amplitude of the mounting seat 9 and the relay is changed, the faster the rotation speed of the second stepping motor 51 is, the movement amplitude of the sliding block 8 is larger, the above-mentioned operation process is controlled by the controller 52, and is controlled by a preset program inside the controller 52. Through the scheme, the working environment of the relay in the shaking state can be simulated, and the performance of the relay is detected through the performance detector 1. When the driving mechanism 43 is used for driving sliding motion and further driving the relay to swing, the pressing mechanism 31 presses the relay on the relay socket 24 on the mounting seat 9, so that the detection result of the performance detector 1 on the relay due to bad contact between the relay and the relay socket 24 is avoided.
When the slider 8 drives the mounting seat 9 to move through the swinging piece 10, the degree of offset between the slider 8 and the mounting seat 9 also depends on the number of the swinging pieces 10, the more the number of the swinging pieces 10 are arranged between the slider 8 and the mounting seat 9, the smaller the degree of offset between the slider 8 and the mounting seat 9 is under the elastic action of the swinging pieces 10, the fewer the number of the swinging pieces 10 are arranged between the slider 8 and the mounting seat 9, the greater the degree of offset between the slider 8 and the mounting seat 9 is, and at least two swinging pieces 10 are required to be arranged for supporting the mounting seat 9. When the swing piece 10 needs to be disassembled and assembled, the second knob 20 on the limit rod 13 is only required to be rotated anticlockwise, the first stud 18 on the limit rod 13 is separated from the third screw hole 14, the second stud 19 is separated from the fourth screw hole 16, the limit rod 13 can be taken out from the through groove, and the swing piece 10 can be taken out from the groove 11 according to the requirement. When the swinging plate 10 needs to be fixed, the end part of the swinging plate 10 is only required to be embedded into the groove 11, then the limiting rod 13 is inserted into the through groove and rotates clockwise, so that the first stud 18 is in threaded connection with the third screw hole 14, the second stud 19 is in threaded connection with the fourth screw hole 16, the operation is very convenient, and the locking of all the swinging plates 10 can be completed through the cooperation of the limiting rod 13 and the groove 11.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the application. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the application or exceeding the scope of the application as defined in the accompanying claims.
Claims (7)
1. The relay performance inspection device for limit detection is characterized by comprising an inspection box and a performance detector for detecting the performance of a relay, wherein the inspection box comprises a box body provided with an opening and a sealing cover capable of completely sealing the opening;
the bottom of the inner cavity of the inspection box is slidably connected with a sliding block which can only do linear reciprocating motion, a mounting seat is arranged above the sliding block, a plurality of elastic swinging pieces which are used for supporting the mounting seat are arranged between the sliding block and the mounting seat, the swinging pieces are mutually parallel and distributed along the sliding direction of the sliding block, grooves which are in one-to-one correspondence with the swinging pieces are arranged at the upper end of the sliding block and the lower end of the mounting seat, the end parts of the swinging pieces are embedded into the corresponding grooves, at least two through grooves which are transversely arranged and sequentially penetrate through all the grooves are arranged on the sliding block and the mounting seat, through holes which are in one-to-one correspondence with the through grooves are also arranged on the swinging pieces, when the swinging pieces are embedded into the grooves, the through holes are aligned with the corresponding through grooves, the side walls around the swinging pieces are attached to the inner walls of the grooves, and limit rods which penetrate through the corresponding through holes on all the swinging pieces and fix all the swinging pieces in the grooves are detachably and fixedly connected in the through grooves;
the upper end of the mounting seat is detachably and fixedly connected with a relay socket used for mounting a relay and electrically connected with the relay, the mounting seat is also provided with a fastening mechanism used for fixing the relay on the relay socket, the fastening mechanism comprises a supporting frame, the supporting frame comprises a transverse plate positioned above the mounting seat, two ends of the transverse plate are fixedly connected with connecting pieces, the connecting pieces are slidably arranged on the mounting seat, and locking bolts capable of locking the connecting pieces and the mounting seat are screwed on the connecting pieces;
the transverse plate is provided with an adjusting groove penetrating through the strip-shaped structure of the transverse plate, the length direction of the adjusting groove is vertical to the sliding direction of the supporting frame, the lower end surface of the transverse plate is fixedly provided with first clamping teeth distributed along the length direction of the adjusting groove at two sides of the adjusting groove, the position of the adjusting groove is provided with a compressing mechanism capable of sliding along the length direction of the adjusting groove and longitudinally moving, the compressing mechanism comprises an upper plate positioned above the transverse plate, the lower end surface of the upper plate is fixedly provided with a guide sleeve with an annular structure, the edges of the left side and the right side of the upper plate protrude outwards relative to the left side and the right side of the guide sleeve, the guide sleeve penetrates through the adjusting groove, the left side and the right side of the guide sleeve are respectively attached to the left inner wall and the right inner wall of the adjusting groove, the lower end of the guide sleeve is sleeved with a pressing block which can only longitudinally slide along the guide sleeve, a lower plate which is arranged around the guide sleeve and is positioned below the transverse plate is fixedly arranged on the outer side surface of the guide sleeve, a second latch which is matched with the first latch is arranged on the upper end surface of the lower plate, a first screw hole which penetrates through the upper plate is arranged on the upper plate, a second screw hole is arranged at the upper end of the pressing block, an adjusting piece is arranged between the upper plate and the pressing block and comprises a first screw rod which is in threaded connection with the first screw hole, a first knob which is positioned above the upper plate is fixedly arranged at the upper end of the first screw rod, a second screw rod which is in threaded connection with the second screw hole is fixedly arranged at the lower end of the first screw rod, and the spiral directions of external threads of the first screw rod and the second screw rod are opposite;
the inside of the inspection box is also fixedly provided with a driving mechanism which is used for driving the sliding block to do linear reciprocating motion and can adjust the motion amplitude and frequency of the sliding block;
and a controller for controlling the driving mechanism is further arranged outside the inspection box, and the performance detector is electrically connected with the relay socket.
2. The relay performance inspection device for limit detection according to claim 1, wherein a through groove on the sliding block penetrates through the front end and the rear end of the sliding block, the through groove comprises a third screw hole, a connecting hole and a fourth screw hole which are sequentially arranged, the third screw hole and the fourth screw hole are respectively arranged at the two ends of the sliding block, the connecting hole penetrates through all the grooves, the inner diameter of the third screw hole is larger than the inner diameter of the connecting hole, and the inner diameter of the connecting hole is larger than the inner diameter of the fourth screw hole; the limiting rod comprises a limiting part with a cylindrical structure, wherein the outer diameter of the limiting part, the inner diameter of the connecting hole and the inner diameter of the through hole are equal, one end of the limiting part is fixedly connected with a first stud, the other end of the limiting part is fixedly provided with a second stud, the limiting part is sleeved in the connecting hole, the first stud is in threaded connection with a third screw hole, the second stud is in threaded connection with a fourth screw hole, and one end of the first stud opposite to the limiting part is fixedly provided with a second knob; the through groove on the mounting seat is identical to the through groove on the sliding block in structure, and the limiting rod on the mounting seat is identical to the limiting rod on the sliding block in structure.
3. The device for detecting the performance of the relay for limit detection according to claim 2, wherein a plug is screwed in the fourth screw hole, a spring positioned in the fourth screw hole is fixedly arranged on the plug, and when the limit rod is installed in the through groove, the second stud extrudes and deforms the spring.
4. A relay performance inspection apparatus for limit detection according to claim 1, 2 or 3, wherein two sides of the mounting base are respectively provided with a guide groove arranged transversely, the connecting piece comprises a side plate fixedly connected with the transverse plate vertically, and a sliding block embedded in the guide groove is fixedly arranged at the lower end of the side plate.
5. The relay performance inspection device for limit detection according to claim 1, wherein the driving mechanism comprises a hinge seat fixed at one end of the sliding block and a first stepping motor fixed in the box body, a cam is vertically and fixedly connected to a rotating shaft of the first stepping motor, a connecting rod with adjustable length is arranged between the hinge seat and the cam, the connecting rod comprises a connecting sleeve hinged with the hinge seat, a connecting rod capable of moving along the length direction of the connecting sleeve is sleeved at one end of the connecting sleeve opposite to the hinge seat, a screw rod capable of rotating is arranged in the connecting sleeve, a second stepping motor capable of driving the screw rod to rotate is fixedly arranged in the connecting sleeve, the first stepping motor and the second stepping motor are respectively and electrically connected with the controller, the controller can be used for controlling the rotating speed of the rotating shaft of the first stepping motor and the rotating direction of the rotating shaft of the second stepping motor, a fifth screw hole is arranged at one end of the connecting rod extending into the connecting sleeve, the screw rod is connected with the fifth screw hole, and the end of the connecting rod opposite to the connecting sleeve is rotationally connected with the cam; the distance measuring device is characterized in that a distance measuring sensor is further fixedly arranged in the box body, the distance measuring sensor is arranged on an extension line of the moving direction of the sliding block and used for measuring the distance change between the distance measuring sensor and the sliding block, and the distance measuring sensor is electrically connected with the controller.
6. The device for detecting the performance of the relay according to claim 1, wherein a visible window is arranged on the side wall of the box body, and a transparent plate is fixedly arranged at the position of the visible window.
7. The relay performance inspection device for limit detection according to claim 1, wherein the upper end surface of the mounting seat is provided with a plurality of mounting screw holes, and the relay socket is fastened on the mounting seat by a fixing bolt screwed with the mounting screw holes.
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