CN219349075U - Test device for mechanical and electrical life and short circuit test of circuit breaker - Google Patents
Test device for mechanical and electrical life and short circuit test of circuit breaker Download PDFInfo
- Publication number
- CN219349075U CN219349075U CN202320263313.0U CN202320263313U CN219349075U CN 219349075 U CN219349075 U CN 219349075U CN 202320263313 U CN202320263313 U CN 202320263313U CN 219349075 U CN219349075 U CN 219349075U
- Authority
- CN
- China
- Prior art keywords
- axis
- module
- linear motion
- sample
- motion module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model adopts a test device for the mechanical and electrical life and short circuit test of a circuit breaker, which comprises an outer box body, a sample mounting module, a triaxial movement assembly, a terminal transmission assembly and an electric control system, wherein the electric control system drives the triaxial movement assembly to drive the terminal transmission assembly to execute triaxial movement on the outer box body, and drives an external opening and closing handle of a sample to be tested to execute pulling action through an opening and closing switch driving part of the terminal transmission assembly, so that the handle action of the circuit breaker is automatically driven, the action is accurate and reliable, and the test process of the test device is accurate and high when the mechanical and electrical life and short circuit test of the circuit breaker are performed.
Description
Technical Field
The utility model relates to the technical field of test equipment, in particular to a test device for a mechanical and electrical life and short circuit test of a circuit breaker.
Background
The circuit breaker is a switching device capable of closing, carrying and breaking a current under normal circuit conditions and closing, carrying and breaking a current under abnormal circuit conditions for a prescribed time, and is used for protecting an overcurrent of a line facility of a building and the like. In order to check the performance and standard of the circuit breaker, the circuit breaker used in the market needs to be subjected to various tests to test the working condition before leaving a factory.
Wherein for mechanical and electrical life tests of the circuit breaker it is required that the circuit breaker should be capable of performing a sufficient number of operating cycles at rated current, e.g. for circuit breakers rated for currents greater than 32A, the operating frequency should be 120 cycles per hour, and the circuit breaker should remain in the open position for at least 28s during each operating cycle. In case of manual operation, the circuit breaker should be operated at an operation speed of (0.1.+ -. 0.025) m/s during driving.
In the case of a short-circuit test of a circuit breaker, it is required that the circuit breaker should be capable of performing a predetermined number of short-circuit operations, and that an operator should not be endangered during the short-circuit operations, and that flashovers should not occur between live conductive members or between a dotted conductive member and ground. For example, when testing in the atmosphere, a grid circuit needs to be placed at the vent hole or a specified position of the circuit breaker to detect free gas emitted by the circuit breaker, and a polyethylene film needs to be arranged near the circuit breaker to observe whether a karst cave exists or not to judge whether the circuit breaker is harmful to an operator or not in the process of short-circuit operation, wherein the connection between the grid circuit and the test circuit is carried out according to national standard documents.
Meanwhile, in order to realize that the breaker can effectively and safely carry out automatic test in mechanical and electrical life test and short-circuit test, the breaker test equipment is generally needed, the existing test equipment is driven by air pressure of an air cylinder to realize control on opening and closing, and the opening and closing path is a linear opening and closing.
However, when the conventional test equipment is used for controlling air pressure, the condition of large speed control error can occur when the circuit breaker is used for carrying out operation cycle times of mechanical and electrical life tests due to unstable air pressure or other conditions. In addition, the switching-on and switching-off paths of the existing breaker switches are arc-shaped and not linear paths, and the linear switching-on and switching-off can fail for the breaker with a short switch handle, so that the condition that the testing process is accurate and poor when the breaker is subjected to mechanical and electrical life tests and short-circuit tests is caused.
Disclosure of Invention
In view of the above-mentioned shortcomings, the utility model provides a test device which can simulate actual manual operation at a specified speed when the mechanical and electrical life and short circuit test of a circuit breaker are carried out, can fit the opening and closing paths of a circuit breaker switch in the operation process, and has high accuracy in the test process.
In order to achieve the above purpose, the utility model adopts a test device for the mechanical and electrical life and short circuit test of the circuit breaker, which comprises an outer box body, a sample mounting module, a triaxial movement assembly, a tail end transmission assembly and an electric control system for providing power for the test device, wherein the sample mounting module, the triaxial movement assembly and the tail end transmission assembly are distributed on the outer box body and are limited;
the sample mounting module comprises a detection grid and a sample mounting area, wherein the external sample to be tested is limited in the sample mounting area and connected in parallel, the detection grid is distributed on one side of the sample mounting area, and the external sample to be tested is formed in the detection process through the detection grid and performs the detection action on the emitted free gas;
the end transmission assembly comprises an opening and closing switch driving part capable of driving an external sample to be tested to perform opening and closing work in an arc shape, the end transmission assembly is connected to the triaxial movement assembly, the triaxial movement assembly is driven by the electric control system to drive the end transmission assembly to perform triaxial movement on the outer box body, and the opening and closing handle of the external sample to be tested is driven by the opening and closing switch driving part to perform pulling action.
The utility model has the beneficial effects that: the test device relates to an outer box body, a sample mounting module, a triaxial movement assembly, an end transmission assembly and an electric control system, and the sample mounting module is limited to form a detection grid and a sample mounting area, wherein the upper part of the outer box body can play a role similar to a workbench, the triaxial movement assembly mainly plays a role in driving the end transmission assembly to move in triaxial directions, so that a switch-on/off switch driving part of the end transmission assembly can be aligned with a switch-on/off handle of a sample to be tested, namely a handle of a circuit breaker, in the sample mounting area of the sample mounting module, and the switch-on/off switch driving part is a part capable of moving through an arc-shaped form, thereby enabling a movement track of the switch-on/off switch driving part to be matched with a switch-on path pulled by the handle of the circuit breaker to move, therefore, when the handle of the automatic drive circuit breaker acts, the action is accurate and reliable, the electric control system is a general control part of the test device, the power supply of the test device can be supported, meanwhile, the driving power provided by the triaxial movement assembly and the tail end transmission assembly and the limit detection during movement can be supported, the linkage action of the triaxial movement assembly and the tail end transmission assembly is further driven, and the automatic drive on-off handle is acted on the circuit breaker, namely, the on-off of the circuit breaker is realized, in addition, when the life test of the test device is carried out, the circuit breaker can be connected with the electric control system through wiring to detect whether the circuit breaker is normally on-off, and when the short circuit test is carried out, the circuit breaker can be connected with equipment, the result caused by short circuit is observed, and the starting point position, the end point position and the speed of the on-off circuit breaker can be supported through the electric control system, the parameters such as the times of opening and closing and the number of opening and closing are set, so that the test process of the test device is high in accuracy when the mechanical and electrical life of the circuit breaker and the short circuit test are carried out; and because the sample installation module of the test device also relates to the detection grid, in the test of the circuit breaker short circuit, whether a user is harmed during the short circuit operation is judged by detecting free gas emitted by the circuit breaker through the detection grid and the corresponding circuit, so that whether a product is qualified is judged, in the test of the mechanical and electrical life of the circuit breaker, the detection grid is not needed, and whether the circuit breaker is damaged is judged only by judging whether current flows in the circuit breaker, so that whether the product is qualified is judged.
The three-axis linear motion module comprises an X-axis linear motion module, a Y-axis linear motion module and a Z-axis linear motion module, wherein the X-axis linear motion module comprises an X-axis driving body, the Y-axis linear motion module comprises a Y-axis driving body, and the Z-axis linear motion module comprises a Z-axis driving body;
the three-axis motion assembly is limited on the outer box body through an X-axis linear motion module, the Y-axis linear motion module is connected with the X-axis linear motion module, the Z-axis linear motion module is connected with the Y-axis linear motion module, and the tail end transmission assembly is connected with the Z-axis linear motion module;
the X-axis linear motion module drives the X-axis linear motion module to act through the X-axis driving body and jointly drives the Y-axis linear motion module to move, the Y-axis linear motion module drives the Y-axis linear motion module to act through the Y-axis driving body and jointly drives the Z-axis linear motion module to move, the Z-axis linear motion module drives the Z-axis linear motion module to act through the Z-axis driving body and jointly drives the tail end transmission assembly to move, and the three-axis-direction movement movements among the X-axis linear motion module, the Y-axis linear motion module and the Z-axis linear motion module are jointly driven to respectively move, so that the alignment of the opening and closing switch driving part on the tail end transmission assembly and the opening and closing handle of an external sample to be tested is formed.
Through the arrangement, the triaxial moving assembly can reliably drive the terminal transmission assembly in the triaxial moving motion required by the triaxial moving assembly, and therefore design rationality is ensured.
The utility model further provides that the sample mounting area comprises a sample mounting box and a guide rail fixedly arranged in the sample mounting box, and an external sample to be tested is mounted on the guide rail for limiting.
Through the arrangement, the circuit breaker product to be tested can be reliably installed on the test device, the circuit breaker product to be tested is installed on the guide rail after being installed, the circuit breaker product to be tested can slide left and right on the guide rail, the hand force point can be pushed, meanwhile, the direction of force is vertical when the test device is used for opening and closing a switch, the circuit breaker product cannot be moved left and right, the installation reliability is further ensured, in addition, the circuit breaker product is installed on the guide rail, the common guide rail can support a plurality of circuit breakers to be installed simultaneously, namely the test device can simultaneously install a plurality of circuit breaker products on the guide rail and test the circuit breaker products in the same batch, and therefore the test efficiency of the test device is greatly improved.
The X-axis linear motion module is further provided with an X-axis module body and an X-axis sliding block, wherein the X-axis module body is fixedly arranged on the outer box body, the X-axis driving body is connected with the X-axis module body and provides power for the X-axis module body, the X-axis sliding block is connected to the X-axis module body in a sliding manner, and the X-axis sliding block is formed to slide on the X-axis module body through the X-axis driving body;
the Y-axis linear motion module further comprises a Y-axis module body, a Y-axis sliding block and a module connecting piece, wherein the Y-axis driving body is connected with the Y-axis module body and provides power for the Y-axis module body, the Y-axis sliding block is connected to the Y-axis module body in a sliding manner, the Y-axis driving body forms a sliding motion of the Y-axis sliding block on the Y-axis module body, and the module connecting piece is fixedly arranged on the X-axis sliding block;
the Z-axis linear motion module further comprises a Z-axis module body and a Z-axis sliding block, wherein the Z-axis module body is connected to the module connecting piece, the Z-axis driving body is connected with the Z-axis module body and provides power for the Z-axis module body, the Z-axis sliding block is connected to the Z-axis module body in a sliding manner, and the Z-axis sliding block is formed to slide on the Z-axis module body through the Z-axis driving body.
By the arrangement, the reliable driving of the triaxial moving assembly in the triaxial moving motion required by the terminal transmission assembly can be further ensured.
The utility model further provides that the opening and closing switch driving part is a gear part, and the tail end transmission assembly further comprises a tail end transmission machine body, a tail end transmission driving body, a transmission sliding block, a rack, a supporting seat and a supporting shaft;
the tail end transmission machine body is fixedly arranged on the Z-axis sliding block, the tail end transmission driving body is connected with the tail end transmission machine body and provides power for the tail end transmission machine body, the transmission sliding block is connected to the tail end transmission machine body, and the transmission sliding block is formed to slide on the tail end transmission machine body through the tail end transmission driving body; the rack is connected to the transmission slide block, the support seat is fixedly arranged on the tail end transmission machine body, the support shaft is arranged on the support seat, a bearing is arranged between the support seat and the support shaft, the gear piece is sleeved on the support shaft, and the gear piece is in meshed connection with the rack.
Through the arrangement, the inside of the tail end transmission assembly can be reliably transmitted when the tail end transmission assembly automatically drives the opening and closing handle of the circuit breaker.
The utility model further provides that the opening and closing switch driving part comprises a cylindrical gear and an extending part formed at the gear tooth position of the cylindrical gear, wherein the extending part extends outwards relative to one end far away from the gear tooth position of the cylindrical gear, and the end of the extending part, which extends outwards, is abutted against the bottom end of the opening and closing handle of the external sample to be tested in the contact stage of the opening and closing switch driving part and the opening and closing handle of the external sample to be tested.
Through the arrangement, when the opening and closing switch driving part drives the breaker handle to perform opening and closing work, the opening and closing switch driving part can be suitable for breakers of various specifications, and the situation that the opening and closing switch driving part cannot be contacted with the breaker handle due to too short handle of part of the breakers is avoided, so that the practicability of the test device is ensured.
The utility model is further arranged that the sample installation area further comprises a baffle plate for limiting the outside sample to be tested of the installation guide rail from shaking in the sample installation box, the baffle plate is connected with the sample installation box in an openable mode, the baffle plate is closed or opened on the sample installation box, shaking limitation or limitation of the outside sample to be tested in the sample installation box is relieved, the baffle plate is provided with a naked groove, the outside sample to be tested, which is limited on the guide rail, is installed, and the opening and closing handle and the control area of the outside sample to be tested are exposed outside the sample installation area through the naked groove.
Through above-mentioned setting for the circuit breaker is difficult for appearing rocking when installing in the sample installation zone, causes the reliability of influence test in-process, divide-shut brake switch drive part and circuit breaker handle contact, and through the structural design who has seted up naked groove on the baffle, has realized this test device and is guaranteeing the difficult circumstances of rocking of circuit breaker, can not influence the normal clear of test.
The utility model is further arranged that the electric control system is arranged in the outer box body.
By the arrangement, the electric control system is reliably protected from installation.
Drawings
FIG. 1 is a schematic view of the structure of the test device according to the present utility model at a first view angle.
FIG. 2 is a schematic view of the structure of the test device according to the present utility model at a second view angle.
FIG. 3 is a schematic view of the structure of the test device according to the present utility model at a third view angle.
Fig. 4 is a schematic perspective view of the X-axis linear motion module of the present utility model.
Fig. 5 is a schematic perspective view of a sample mounting module according to the present utility model.
Fig. 6 is a schematic perspective view of a Y-axis linear motion module according to the present utility model.
Fig. 7 is a schematic perspective view of a Z-axis linear motion module according to the present utility model.
FIG. 8 is a schematic diagram showing the front view of the end drive assembly of the present utility model in cooperation with a sample to be tested and a baffle.
Fig. 9 is a schematic perspective view of the end drive assembly of the present utility model after removal of the end drive body and mating with the sample to be tested and the baffle.
Fig. 10 is a schematic perspective view of the opening/closing switch driving unit according to the present utility model.
Fig. 11 is a simplified schematic diagram of the switch architecture of the miniature circuit breaker of the present utility model.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the drawings in the present embodiment, and it is apparent that the described embodiments are only some embodiments, not all embodiments. All other embodiments, which can be made by those skilled in the art without the inventive effort, are intended to be within the scope of the present embodiments.
In the description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
As shown in fig. 1-10, the specific embodiment of the utility model is a test device for mechanical and electrical life and short circuit test of a circuit breaker, comprising an outer box body 1, a sample mounting module 2, a triaxial movement assembly 3, a terminal transmission assembly 4 and an electric control system for providing power for the test device, wherein the electric control system is arranged in the outer box body 1, and the sample mounting module 2, the triaxial movement assembly 3 and the terminal transmission assembly 4 are distributed on the outer box body 1 and limited;
the sample mounting module 2 comprises a detection grid 203 and a sample mounting area, an external sample a to be tested is limited in the sample mounting area and is connected with the sample mounting area, the detection grid 203 is distributed on one side of the sample mounting area, and the external sample a to be tested is formed in the detection process through the detection grid 203 and performs the detection action on the emitted free gas;
the tail end transmission assembly 4 comprises a switching-on/off switch driving part 46 which can drive an external sample a to be tested in an arc shape to perform switching-on/off operation, the tail end transmission assembly 4 is connected to the triaxial movement assembly 3, the triaxial movement assembly 3 is driven by the electric control system to drive the tail end transmission assembly 4 to perform triaxial movement on the outer box body 1, and the switching-on/off handle a1 of the external sample a to be tested is driven by the switching-on/off switch driving part 46 to perform pulling action.
The test device relates to the outer box body 1, the sample mounting module 2, the triaxial movement assembly 3, the tail end transmission assembly 4 and the electric control system, and the sample mounting module 2 is limited to form a detection grid 203 and a sample mounting area, wherein the upper part of the outer box body 1 can play a role similar to a workbench, the triaxial movement assembly 3 mainly plays a role of driving the tail end transmission assembly 4 to move in triaxial directions, so that the opening and closing switch driving part 46 of the tail end transmission assembly 4 can be aligned with the opening and closing handle a1 of a sample to be tested, namely the handle of a breaker, in the sample mounting area of the sample mounting module 2, and because the opening and closing switch driving part 46 is a part capable of moving in an arc-shaped mode, the motion track of the opening and closing switch driving part 46 can be matched with the opening and closing path of the handle pulling of the breaker to act, so that the operation accuracy and reliability of the handle automatically driving the breaker are ensured, the electric control system is a main control part of the test device, the power supply of the test device can be supported, the driving power supply of the triaxial motion assembly 3 and the tail end transmission assembly 4 and the limit detection during the movement can be supported, the linkage action of the triaxial motion assembly 3 and the tail end transmission assembly 4 can be driven, the breaker is acted, the automatic opening and closing driving handle a1 is driven to pull, namely the opening and closing of the breaker is realized, in addition, the breaker can be connected with the electric control system through wiring to detect whether the breaker is normally opened or closed when the life test device is used for the life test, and the breaker can be externally connected with equipment for the short circuit test, the consequences caused during the short circuit observation are also supported, the electric control system can also support the setting of parameters such as starting point position, end point position, speed, switching-on and switching-off times, switching-on and switching-off number and the like when the circuit breaker is switched on and off, so that the test process of the test device is accurate when the circuit breaker is subjected to mechanical and electrical life and short circuit test; and because the sample installation module 2 of the test device also relates to the detection grid 203, in the test of the short circuit of the circuit breaker, whether a user is harmed during the short circuit operation is judged by detecting free gas emitted by the circuit breaker through the detection grid 203 and a corresponding circuit, so that whether a product is qualified is judged, and in the test of the mechanical and electrical life of the circuit breaker, the detection grid 203 is not needed, and whether the circuit breaker is damaged is judged only by judging whether current flows in the circuit breaker, so that whether the product is qualified is judged.
As shown in fig. 1-4, 6 and 7, the three-axis motion assembly 3 includes an X-axis linear motion module 31, a Y-axis linear motion module 32 and a Z-axis linear motion module 33, the X-axis linear motion module 31 includes an X-axis driving body 313, the Y-axis linear motion module 32 includes a Y-axis driving body 323, and the Z-axis linear motion module 33 includes a Z-axis driving body 333;
the three-axis motion module 3 is limited on the outer box body 1 through an X-axis linear motion module 31, a Y-axis linear motion module 32 is connected with the X-axis linear motion module 31, a Z-axis linear motion module 33 is connected with the Y-axis linear motion module 32, and the tail end transmission module 4 is connected with the Z-axis linear motion module 33;
the X-axis linear motion module 31 drives the X-axis linear motion module 31 to move through the X-axis driving body 313, and jointly drives the Y-axis linear motion module 32 to move, the Y-axis linear motion module 32 drives the Y-axis linear motion module 32 to move through the Y-axis driving body 323, and jointly drives the Z-axis linear motion module 33 to move, the Z-axis linear motion module 33 drives the Z-axis linear motion module 33 to move through the Z-axis driving body 333, and jointly drives the end transmission assembly 4 to move, so that the movement movements in three axial directions among the X-axis, the Y-axis and the Z-axis linear motion modules 33 are respectively formed, and the opening and closing switch driving component 46 on the end transmission assembly 4 is aligned with the opening and closing handle a1 of the external sample a to be tested.
As shown in fig. 1-3 and 5, the sample mounting area includes a sample mounting box 24 and a guide rail 21 fixedly arranged in the sample mounting box 24, and an external sample a to be tested is mounted on the guide rail 21 for limiting.
As shown in fig. 1-4, 6 and 7, the X-axis linear motion module 31 further includes an X-axis module body 311 and an X-axis slider 312, wherein the X-axis module body 311 is fixedly arranged on the outer case 1, an X-axis driving body 313 is connected with the X-axis module body 311 and provides power for the X-axis module body 311, the X-axis slider 312 is slidably connected to the X-axis module body 311, and the X-axis slider 312 is configured to slide on the X-axis module body 311 through the X-axis driving body 313;
the Y-axis linear motion module 32 further comprises a Y-axis module body 321, a Y-axis sliding block 322 and a module connecting piece 324, wherein a Y-axis driving body 323 is connected with the Y-axis module body 321 and provides power for the Y-axis module body 321, the Y-axis sliding block 322 is connected to the Y-axis module body 321 in a sliding manner, the Y-axis sliding block 322 is formed to slide on the Y-axis module body 321 through the Y-axis driving body 323, and the module connecting piece 324 is fixedly arranged on the X-axis sliding block 312;
the Z-axis linear motion module 33 further includes a Z-axis module body 331 and a Z-axis slider 332, the Z-axis module body 331 is connected to the module connector 324, the Z-axis driving body 333 is connected to the Z-axis module body 331 and provides power for the Z-axis module body 331, the Z-axis slider 332 is slidably connected to the Z-axis module body 331, and the Z-axis slider 332 is configured to slide on the Z-axis module body 331 through the Z-axis driving body 333.
As shown in fig. 1-3 and 8-10, the above-mentioned opening and closing switch driving part 46 is a gear part, and the end transmission assembly 4 further includes an end transmission body 41, an end transmission driving body 43, a transmission slider 42, a rack 47, a supporting seat 44, and a supporting shaft 45;
the tail end transmission body 41 is fixedly arranged on the Z-axis sliding block 332, the tail end transmission driving body 43 is connected with the tail end transmission body 41 and provides power for the tail end transmission body 41, the transmission sliding block 42 is connected to the tail end transmission body 41, and the tail end transmission driving body 43 forms sliding motion of the transmission sliding block 42 on the tail end transmission body 41; the rack 47 is connected to the driving slide block 42, the supporting seat 44 is fixedly arranged on the tail end driving machine body 41, the supporting shaft 45 is arranged on the supporting seat 44, a bearing is arranged between the supporting seat 44 and the supporting shaft 45, the gear piece is sleeved on the supporting shaft 45, and the gear piece is in meshed connection with the rack 47.
As shown in fig. 8 to 10, the above-mentioned switch driving member 46 includes a cylindrical gear 462, an extension member 461 formed at the gear teeth 4621 of the cylindrical gear 462, and the extension member 461 extends outwardly with respect to an end of the extension member 461 remote from the gear teeth 4621 of the cylindrical gear 462, and the outwardly extending end of the extension member 461 abuts against the bottom end of the switch lever a1 of the external sample a to be tested at a contact stage of the switch driving member 46 with the switch lever a1 of the external sample a to be tested.
As shown in fig. 1 to 4, the sample mounting area further includes a baffle 22 for limiting the external sample a to be tested on the mounting rail 21 from shaking in the sample mounting box 24, the baffle 22 is connected on the sample mounting box 24 in an openable manner, the baffle 22 is closed or opened on the sample mounting box 24, the shaking limit or restriction release of the external sample a to be tested in the sample mounting box 24 is formed by the baffle 22, a bare slot 221 is formed on the baffle 22, the external sample a to be tested limited on the rail 21 is mounted, and the opening and closing handle a1 of the external sample a to be tested and the control area are exposed on the outer side of the sample mounting area through the bare slot 221.
The above-described X-axis driving body 313, Y-axis driving body 323, Z-axis driving body 333, and end transmission driving body 43 are preferably motors.
When the device is used, the sample mounting box 24 is fixedly mounted on the outer box body 1, the sample a to be tested is fixedly mounted on the guide rail 21 in the sample mounting box 24, and the movement of each sliding block is controlled through the electric control system, so that the tail end of the gear piece is contacted with the breaker switch to serve as the starting position of closing and opening the brake. The running speeds of the four motors are controlled, so that the gear piece can rotate and do circular arc movement, and meanwhile, the switch of the circuit breaker is pushed to be switched on, and the circuit breaker switch can be switched on at a specified speed and a specified movement rule. The switch is opened and the control motor is operated so that the rack 47 partially presses down the switch to realize the opening.
The speed implementation principle in triaxial test is described as follows: the gear teeth 4621 bar 47 and the switch structure relationship of the miniature circuit breaker are simplified as shown in fig. 11, wherein (a) and (b) respectively represent the starting point and the end point states in the switching-on process of the switch.
As shown in part (a) of fig. 11, the opening Guan Jian is a lever OP which is rotated at an angular velocity ω about a fixed point O during the closing of the switch O Rotating; the gear rotates around point C at an angular velocity- ω O Rotating the center point C of the gear around the point O at the angular velocity omega O And (5) rotating. Therefore, if the linear velocity of the switch end point P is set to v P =100 mm/s, then the circular arc linear velocity at point C is
The gear rotational linear velocity, i.e., the rack 47 linear velocity is: />
In summary, when the radius Rgear of the gear is known, the linear velocity of the end of the switch is determined to be 100mm/s, and the starting point and the end point of the switch closing are set, the lengths l of OP and OC are measured OP 、l OC The circular arc linear velocity v of the gear circle center C can be obtained C (realized by double-shaft motor arc interpolation-X-axis and Z-axis transmission assembly), and the linear speed v of the rack 47 (realized by a separate motor-end transmission assembly 4).
Conversely, the speed of the X-axis, Z-axis and end transmission assembly 4 is controlled to enable the speed of opening and closing of the switch to reach the set value.
Claims (8)
1. A test device for circuit breaker mechanical electrical life and short circuit test, its characterized in that: the test device comprises an outer box body, a sample mounting module, a triaxial movement assembly, a terminal transmission assembly and an electric control system for providing power for the test device, wherein the sample mounting module, the triaxial movement assembly and the terminal transmission assembly are distributed on the outer box body and limited;
the sample mounting module comprises a detection grid and a sample mounting area, an external sample to be tested is limited in the sample mounting area and connected in parallel, the detection grid is distributed on one side of the sample mounting area, the external sample to be tested is formed in the detection process through the detection grid, and the detection action of the emitted free gas is executed;
the end transmission assembly comprises an opening and closing switch driving part capable of driving an external sample to be tested to perform opening and closing work in an arc shape, the end transmission assembly is connected to the triaxial movement assembly, the triaxial movement assembly is driven by the electric control system to drive the end transmission assembly to perform triaxial movement on the outer box body, and the opening and closing handle of the external sample to be tested is driven by the opening and closing switch driving part to perform pulling action.
2. The test device for mechanical and electrical life and short circuit testing of circuit breakers of claim 1, wherein: the three-axis motion assembly comprises an X-axis linear motion module, a Y-axis linear motion module and a Z-axis linear motion module, wherein the X-axis linear motion module comprises an X-axis driving body, the Y-axis linear motion module comprises a Y-axis driving body, and the Z-axis linear motion module comprises a Z-axis driving body;
the three-axis motion assembly is limited on the outer box body through an X-axis linear motion module, the Y-axis linear motion module is connected with the X-axis linear motion module, the Z-axis linear motion module is connected with the Y-axis linear motion module, and the tail end transmission assembly is connected with the Z-axis linear motion module;
the X-axis linear motion module drives the X-axis linear motion module to act through the X-axis driving body and jointly drives the Y-axis linear motion module to move, the Y-axis linear motion module drives the Y-axis linear motion module to act through the Y-axis driving body and jointly drives the Z-axis linear motion module to move, the Z-axis linear motion module drives the Z-axis linear motion module to act through the Z-axis driving body and jointly drives the tail end transmission assembly to move, and the three-axis-direction movement movements among the X-axis linear motion module, the Y-axis linear motion module and the Z-axis linear motion module are jointly driven to respectively move, so that the alignment of the opening and closing switch driving part on the tail end transmission assembly and the opening and closing handle of an external sample to be tested is formed.
3. Test device for the mechanical and electrical life and short circuit test of circuit breakers according to claim 1 or 2, characterized in that: the sample mounting area comprises a sample mounting box and a guide rail fixedly arranged in the sample mounting box, and an external sample to be tested is mounted on the guide rail for limiting.
4. The test device for mechanical and electrical life and short circuit testing of circuit breakers of claim 2, wherein: the X-axis linear motion module further comprises an X-axis module body and an X-axis sliding block, wherein the X-axis module body is fixedly arranged on the outer box body, the X-axis driving body is connected with the X-axis module body and provides power for the X-axis module body, the X-axis sliding block is connected to the X-axis module body in a sliding manner, and the X-axis sliding block is formed to slide on the X-axis module body through the X-axis driving body;
the Y-axis linear motion module further comprises a Y-axis module body, a Y-axis sliding block and a module connecting piece, wherein the Y-axis driving body is connected with the Y-axis module body and provides power for the Y-axis module body, the Y-axis sliding block is connected to the Y-axis module body in a sliding manner, the Y-axis driving body forms a sliding motion of the Y-axis sliding block on the Y-axis module body, and the module connecting piece is fixedly arranged on the X-axis sliding block;
the Z-axis linear motion module further comprises a Z-axis module body and a Z-axis sliding block, wherein the Z-axis module body is connected to the module connecting piece, the Z-axis driving body is connected with the Z-axis module body and provides power for the Z-axis module body, the Z-axis sliding block is connected to the Z-axis module body in a sliding manner, and the Z-axis sliding block is formed to slide on the Z-axis module body through the Z-axis driving body.
5. The test device for mechanical and electrical life and short circuit testing of circuit breakers of claim 4, wherein: the switching-on/off switch driving part is a gear part, and the tail end transmission assembly further comprises a tail end transmission machine body, a tail end transmission driving body, a transmission sliding block, a rack, a supporting seat and a supporting shaft;
the tail end transmission machine body is fixedly arranged on the Z-axis sliding block, the tail end transmission driving body is connected with the tail end transmission machine body and provides power for the tail end transmission machine body, the transmission sliding block is connected to the tail end transmission machine body, and the transmission sliding block is formed to slide on the tail end transmission machine body through the tail end transmission driving body; the rack is connected to the transmission slide block, the support seat is fixedly arranged on the tail end transmission machine body, the support shaft is arranged on the support seat, a bearing is arranged between the support seat and the support shaft, the gear piece is sleeved on the support shaft, and the gear piece is in meshed connection with the rack.
6. The test device for mechanical and electrical life and short circuit testing of circuit breakers of claim 5, wherein: the opening and closing switch driving part comprises a cylindrical gear and an extension piece formed at the gear tooth position of the cylindrical gear, wherein the extension piece extends outwards relative to one end far away from the gear tooth position of the cylindrical gear, and the end extending outwards on the extension piece is abutted against the bottom end of the opening and closing handle of the external sample to be tested in the contact stage of the opening and closing switch driving part and the opening and closing handle of the external sample to be tested.
7. A test device for the mechanical and electrical life and short circuit test of a circuit breaker according to claim 3, characterized in that: the sample installation area also comprises a baffle plate for limiting the outside sample to be tested of the installation guide rail to shake in the sample installation box, the baffle plate is connected on the sample installation box in an openable way, the baffle plate is closed or opened on the sample installation box, the shake limit or the limit release of the outside sample to be tested in the sample installation box is formed, the baffle plate is provided with a bare slot, the outside sample to be tested, which is limited on the guide rail, is arranged on the outside of the sample installation area, and the outside sample to be tested is formed by the bare slot, the opening and closing handle and the control area of the outside sample to be tested are exposed on the outside of the sample installation area.
8. The test device for mechanical-electrical life and short-circuit testing of circuit breakers according to claims 1, 2, 4, 5, 6 or 7, characterized in that: the electric control system is arranged in the outer box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320263313.0U CN219349075U (en) | 2023-02-08 | 2023-02-08 | Test device for mechanical and electrical life and short circuit test of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320263313.0U CN219349075U (en) | 2023-02-08 | 2023-02-08 | Test device for mechanical and electrical life and short circuit test of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219349075U true CN219349075U (en) | 2023-07-14 |
Family
ID=87104167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320263313.0U Active CN219349075U (en) | 2023-02-08 | 2023-02-08 | Test device for mechanical and electrical life and short circuit test of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219349075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929991B (en) * | 2024-03-22 | 2024-06-07 | 浙江省机电产品质量检测所有限公司 | Low-voltage switching device operation performance test system and control method |
-
2023
- 2023-02-08 CN CN202320263313.0U patent/CN219349075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117929991B (en) * | 2024-03-22 | 2024-06-07 | 浙江省机电产品质量检测所有限公司 | Low-voltage switching device operation performance test system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219349075U (en) | Test device for mechanical and electrical life and short circuit test of circuit breaker | |
| CN216900815U (en) | Automatic testing arrangement of circuit breaker characteristic | |
| CN111077388A (en) | Comprehensive test platform for modular servo drive unit | |
| CN106771751B (en) | Automatic preassemble debugging test box of mobile distribution network | |
| CN110824251A (en) | General maintenance platform of clamp type isolating switch | |
| CN207367903U (en) | The operation structure and breaker of a kind of breaker | |
| CN214254307U (en) | Positioning turnover mechanism for circuit breaker | |
| CN211478457U (en) | General maintenance platform of clamp type isolating switch | |
| KR101127404B1 (en) | Circuit breaker cradle having movable shutter | |
| CN108808708B (en) | Intelligent phase-change switch | |
| CN219144000U (en) | Circuit breaker | |
| KR100430224B1 (en) | Entrance/exit position indication apparatus for circuit breaker for distributing board | |
| CN215641687U (en) | Built-in isolating switch running-in test bench of circuit breaker | |
| CN104201065A (en) | Miniature circuit breaker with fault tripping indication | |
| KR20020048532A (en) | interlock device of earth switch for vacuum circuit breaker | |
| CN219449108U (en) | Master controller of bulb operating rod | |
| TR201815193T4 (en) | Thermal magnetic switch and method for its installation. | |
| CN213816008U (en) | Residual current circuit breaker device | |
| CN107749382A (en) | Operation structure, breaker and the control method of a kind of breaker | |
| CN117929991B (en) | Low-voltage switching device operation performance test system and control method | |
| CN219842940U (en) | Circuit breaker | |
| CN215261537U (en) | Quick inspection device for guide rail interlocking device of centrally installed switchgear | |
| CN117991085A (en) | Actuating mechanism and test system for circuit breaker test | |
| CN219017430U (en) | Mutual inductor and breaker with multiple sensing functions | |
| CN214080395U (en) | High-speed stable tool changing electrical control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |