CN213240429U - Load switch characteristic testing device - Google Patents
Load switch characteristic testing device Download PDFInfo
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- CN213240429U CN213240429U CN202021905366.0U CN202021905366U CN213240429U CN 213240429 U CN213240429 U CN 213240429U CN 202021905366 U CN202021905366 U CN 202021905366U CN 213240429 U CN213240429 U CN 213240429U
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Abstract
The utility model relates to a load switch characteristic testing device, which comprises a frame, wherein the frame is provided with a testing mounting plate, the testing mounting plate is vertically arranged, and a plurality of clamping cylinders are arranged on the testing mounting plate and are suitable for clamping a load switch to be tested on the testing mounting plate; the grounding test assembly is suitable for forming contact fit with a grounding contact seat of the load switch; the upper contact seat testing assembly is suitable for forming contact fit with an upper contact seat of the load switch; the lower contact seat test assembly is suitable for forming contact fit with a lower contact seat of the load switch; and the loop resistance tester is suitable for testing the loop resistance between the grounding contact base and the upper contact base and between the grounding contact base and the lower contact base. The loop resistance of the switching-on station and the grounding station of the load switch can be tested, so that an enterprise can master the performance parameters of each batch of load switches in time, and the quality of the load switches is ensured.
Description
Technical Field
The utility model relates to an electrical equipment test field, concretely relates to load switch characteristic test device.
Background
The load switch is a switching device between a circuit breaker and a disconnecting switch, and has a simple arc-extinguishing device, and can cut off rated load current and a certain overload current, but can not cut off short-circuit current.
As shown in fig. 1, the load switch includes a housing 10, an operating shaft 18, an upper mounting seat 11, a lower mounting seat 13, an isolation knife 17 and a ground seat 15, three ground contact seats 16 are arranged on the ground seat 15, three upper contact seats 12 are arranged on the upper mounting seat 11, three lower contact seats 14 are arranged on the lower mounting seat 13, the lower end of the isolation knife 17 is connected with the lower contact seats 14 in a switching manner, an output shaft is connected with the isolation knife 17 through an arc-shaped connecting rod, and the isolation knife 17 is driven to rotate between the upper contact seats 12 and the ground seat 15 through the rotation of the output shaft.
When the isolating knife 17 rotates upwards to connect the upper contact seat 12 and the lower contact seat 14, the load switch is in a switch-on position; when the isolating knife 17 is screwed off the upper contact base 12 and is positioned between the upper contact base 12 and the grounding base 15, the load switch is in a switch-off position at the moment; when the isolating blade 17 is rotated downwards to connect the grounding contact seat 16, the load switch is in a grounding state.
For the processed load switch, three stations of the processed load switch need to be subjected to an electrifying loop test to test whether the processed load switch meets the industry performance index; in the past, no special testing device for the load switch exists in the industry, the circuit breaker is directly assembled in the past, then the circuit breaker is operated to carry out testing, testing is very inconvenient, testing efficiency is affected, and testing cost is increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects in the prior art are overcome, the load switch characteristic testing device is provided, and the problem that the conventional load switch is inconvenient to test is solved.
The utility model provides a technical scheme that its technical problem adopted is:
a load switch characteristic testing device comprises
The testing device comprises a rack, a testing device and a control device, wherein the rack is provided with a testing mounting plate which is vertically arranged, and the testing mounting plate is provided with a plurality of clamping cylinders which are suitable for clamping a load switch to be tested on the testing mounting plate;
the grounding test assembly is suitable for forming contact fit with a grounding contact seat of the load switch;
the upper contact seat testing assembly is suitable for forming contact fit with an upper contact seat of the load switch;
the lower contact seat test assembly is suitable for forming contact fit with a lower contact seat of the load switch;
and the loop resistance tester is suitable for testing the loop resistance between the grounding contact base and the upper contact base and between the grounding contact base and the lower contact base.
Furthermore, the grounding test assembly comprises a grounding bracket, a grounding lifting cylinder, a grounding mounting plate, three grounding sub-cylinders and three grounding contact assemblies;
the grounding lifting cylinder is fixedly arranged on the grounding support, and a push rod of the grounding lifting cylinder is connected with the grounding mounting plate and is suitable for driving the grounding mounting plate to move up and down on the grounding support;
two sides of the grounding mounting plate are respectively and fixedly provided with a first guide rod, and the first guide rods penetrate through the grounding bracket;
the three grounding sub-cylinders are horizontally and fixedly arranged on the grounding mounting plate, and the front ends of the three grounding sub-cylinders are respectively provided with a grounding contact assembly.
Furthermore, the upper contact base test assembly comprises an upper mounting frame, an upper air cylinder, an upper mounting plate and three upper contact assemblies, wherein the upper air cylinder is horizontally and fixedly arranged on the upper mounting frame, a push rod of the upper air cylinder is fixedly connected with the upper mounting plate, two ends of the upper mounting plate are respectively and fixedly provided with a second guide rod, and the second guide rods penetrate through the upper support; the three upper contact assemblies are fixedly arranged on the upper mounting plate.
Further, the lower contact testing assembly comprises a lower mounting frame, a lower air cylinder, a lower mounting plate and three lower contact assemblies, wherein the lower air cylinder is horizontally and fixedly arranged on the lower mounting frame, a push rod of the lower air cylinder is fixedly connected with the lower mounting plate, two ends of the lower mounting plate are respectively and fixedly provided with a third guide rod, and the third guide rods penetrate through the lower support; the three lower contact assemblies are fixedly arranged on the lower mounting plate.
Furthermore, the load switch characteristic testing device further comprises an auxiliary supporting device, the auxiliary supporting device comprises an auxiliary support, an auxiliary cylinder and a supporting block, the auxiliary cylinder is vertically arranged on the auxiliary support, and a push rod of the auxiliary cylinder is fixedly connected with the supporting block.
Furthermore, the grounding contact assembly, the upper contact assembly and the lower contact assembly respectively comprise a contact mounting plate, a contact mounting seat and at least one contact, the contact mounting seat is fixedly connected with the contact mounting plate, and each contact is inserted into the contact mounting seat.
The utility model has the advantages that:
the utility model discloses a load switch characteristic testing arrangement can test load switch combined floodgate station, the return circuit resistance of ground connection station, makes the enterprise in time master every batch load switch's performance parameter, ensures load switch's quality.
The testing device comprises an auxiliary supporting device, and an operator can support the load switch to a preset height by means of the auxiliary supporting device and then clamp the load switch when the load switch to be detected is installed.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a load switch to be tested;
FIG. 2 is a schematic diagram of a load switch testing device (with load switch);
FIG. 3 is a schematic diagram of a load switch testing apparatus;
FIG. 4 is a schematic view of a grounding test assembly, an upper contact test assembly, a lower contact test assembly and an auxiliary support device;
FIG. 5 is a schematic view of the contact assembly;
10, a shell, 11, an upper mounting seat, 12, an upper contact seat, 13, a lower mounting seat, 14, a lower contact seat, 15, a grounding seat, 16, a grounding contact seat, 17, an isolation knife, 18 and an operating shaft;
2. the mounting plate is tested and then the test is carried out,
3. the clamping cylinder is used for clamping the air cylinder,
4. a grounding test assembly 41, a grounding support 42, a grounding lifting cylinder 43, a grounding mounting plate 44, a grounding sub cylinder 45 and a grounding contact assembly;
5. the test assembly of the upper contact seat comprises an upper contact seat test assembly 51, an upper mounting frame 52, an upper cylinder 53, an upper mounting plate 54 and an upper contact assembly;
6. the method comprises the following steps of (1) lower contact seat test assembly, 61, a lower mounting frame, 62, a lower cylinder, 63, a lower mounting plate, 64 and lower contact assembly;
7. the auxiliary supporting device 71, the auxiliary bracket 72, the auxiliary cylinder 73 and the supporting block;
81. contact mounting plate, 82, contact mount, 83, contact.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 to 5, a load switch characteristic testing device includes a rack, the rack is provided with a testing mounting plate 2, the testing mounting plate 2 is vertically arranged, and a plurality of clamping cylinders 3 are arranged on the testing mounting plate 2 and adapted to clamp a load switch to be tested on the testing mounting plate 2;
a grounding test assembly 4 adapted to be brought into contact engagement with a grounding contact 16 of a load switch;
an upper contact base test assembly 5 adapted to form a contact fit with an upper contact base 12 of the load switch;
a lower contact test assembly 6 adapted to form a contact fit with a lower contact 14 of the load switch;
a loop resistance tester adapted to test the loop resistance between ground contact 16 and upper and lower contacts 12, 14. The loop resistance tester is obtained by direct purchase on the market, the model is LHL100A, and the purchased loop resistance tester is directly installed on the rack.
Specifically, in this embodiment, as shown in fig. 4, the grounding test assembly 4 includes a grounding bracket 41, a grounding lifting cylinder 42, a grounding mounting plate 43, three grounding sub-cylinders 44, and three grounding contact assemblies 45;
the grounding lifting cylinder 42 is fixedly arranged on the grounding support 41, and a push rod of the grounding lifting cylinder 42 is connected with the grounding mounting plate 43 and is suitable for driving the grounding mounting plate 43 to move up and down on the grounding support 41;
two sides of the grounding mounting plate 43 are respectively and fixedly provided with a first guide rod, and the first guide rods penetrate through the grounding bracket 41;
the three grounding sub-cylinders 44 are horizontally and fixedly arranged on the grounding mounting plate 43, and the front ends of the three grounding sub-cylinders 44 are respectively provided with a grounding contact assembly 45.
Specifically, in this embodiment, as shown in fig. 4, the upper contact testing assembly 5 includes an upper mounting frame 51, an upper cylinder 52, an upper mounting plate 53, and three upper contact assemblies 54, where the upper cylinder 52 is horizontally and fixedly disposed on the upper mounting frame 51, a push rod of the upper cylinder 52 is fixedly connected to the upper mounting plate 53, two ends of the upper mounting plate 53 are respectively and fixedly disposed with a second guide rod, and the second guide rod passes through the upper bracket; three upper contact assemblies 54 are fixedly mounted on the upper mounting plate 53.
Specifically, in this embodiment, as shown in fig. 4, the lower contact testing assembly 6 includes a lower mounting bracket 61, a lower cylinder 62, a lower mounting plate 63, and three lower contact assemblies 64, where the lower cylinder 62 is horizontally and fixedly disposed on the lower mounting bracket 61, a push rod of the lower cylinder 62 is fixedly connected to the lower mounting plate 63, two ends of the lower mounting plate 63 are respectively and fixedly disposed with a third guide rod, and the third guide rod passes through the lower bracket; three lower contact assemblies 64 are fixedly mounted on the lower mounting plate 63.
Specifically, in this embodiment, as shown in fig. 4, the load switch characteristic testing device further includes an auxiliary supporting device 7, the auxiliary supporting device 7 includes an auxiliary bracket 71, an auxiliary cylinder 72 and a supporting block 73, the auxiliary cylinder 72 is vertically disposed on the auxiliary bracket 71, and a push rod of the auxiliary cylinder 72 is fixedly connected to the supporting block 73.
Specifically, in this embodiment, the ground contact assembly 45, the upper contact assembly 54, and the lower contact assembly 64 each include a contact mounting plate 81, a contact mounting seat 82, and at least one contact 83, the contact mounting seat 82 is fixedly connected to the contact mounting plate 81, and each contact is plugged into the contact mounting seat 82.
The number of specific contacts in the ground contact assembly 45, the upper contact assembly 54 and the lower contact assembly 64 is selected according to actual requirements.
During operation, a load switch to be tested is placed on the supporting block 73, the auxiliary cylinder 72 is lifted, the load switch is lifted to a preset height, and then the clamping cylinder 3 on the test mounting plate 2 fixes the load switch on the test mounting plate 2.
After the load switch is installed, the operation shaft 18 is controlled to rotate, the isolation knife 17 rotates upwards firstly, so that the isolation knife 17 is in contact with the upper contact base, the load switch is switched on, at the moment, the upper contact base testing assembly 5 and the lower contact base testing assembly 6 of the testing device work, the upper cylinder 52 of the upper contact base testing assembly 5 works, and the contacts 83 of the three upper contact point assemblies 54 are in contact with the three upper contact bases 12 of the load switch; the lower cylinder 62 of the lower contact test assembly 6 works to contact the contact 83 of the lower contact test assembly 6 with the three lower contact seats 14 of the load switch, and at this time, the loop resistance tester is electrically connected with the upper contact test assembly 5 and the contact 83 of the lower contact test assembly 6 respectively, so that the loop resistance of the load switch during closing can be tested.
The isolating knife 17 rotates downwards by 45 degrees, and at the moment, the load switch is in a switch-off position; the isolation knife 17 rotates downwards until the isolation knife 17 is in contact with the grounding contact base 16, at the moment, the load switch is in a grounding position, at the moment, the grounding lifting cylinder 42 of the grounding test assembly 4 controls the three grounding sub-cylinders 44 to ascend, the three grounding sub-cylinders 44 horizontally extend out, so that the contacts 83 of the three grounding contact assemblies 45 are in contact with the grounding contact base 16 of the load switch, at the moment, the loop resistance tester is respectively electrically connected with the lower contact base test assembly 6 and the contacts 83 of the grounding test assembly 4, and the loop resistance of the load switch in the grounding position can be tested.
The utility model discloses a load switch characteristic testing arrangement makes things convenient for load switch to dismantle the installation on test mounting panel 2, is convenient for test load switch at combined floodgate, the return circuit resistance of ground connection time.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A load switch characteristic testing device is characterized by comprising
The testing device comprises a rack, a testing device and a control device, wherein the rack is provided with a testing mounting plate which is vertically arranged, and the testing mounting plate is provided with a plurality of clamping cylinders which are suitable for clamping a load switch to be tested on the testing mounting plate;
the grounding test assembly is suitable for forming contact fit with a grounding contact seat of the load switch;
the upper contact seat testing assembly is suitable for forming contact fit with an upper contact seat of the load switch;
the lower contact seat test assembly is suitable for forming contact fit with a lower contact seat of the load switch;
and the loop resistance tester is suitable for testing the loop resistance between the grounding contact base and the upper contact base and between the grounding contact base and the lower contact base.
2. The load switch characteristic test apparatus according to claim 1,
the grounding test assembly comprises a grounding bracket, a grounding lifting cylinder, a grounding mounting plate, three grounding sub-cylinders and three grounding contact assemblies;
the grounding lifting cylinder is fixedly arranged on the grounding support, and a push rod of the grounding lifting cylinder is connected with the grounding mounting plate and is suitable for driving the grounding mounting plate to move up and down on the grounding support;
two sides of the grounding mounting plate are respectively and fixedly provided with a first guide rod, and the first guide rods penetrate through the grounding bracket;
the three grounding sub-cylinders are horizontally and fixedly arranged on the grounding mounting plate, and the front ends of the three grounding sub-cylinders are respectively provided with a grounding contact assembly.
3. The load switch characteristic test apparatus according to claim 1,
the upper contact seat testing assembly comprises an upper mounting frame, an upper air cylinder, an upper mounting plate and three upper contact assemblies, wherein the upper air cylinder is horizontally and fixedly arranged on the upper mounting frame, a push rod of the upper air cylinder is fixedly connected with the upper mounting plate, two ends of the upper mounting plate are respectively and fixedly provided with a second guide rod, and the second guide rods penetrate through the upper support; the three upper contact assemblies are fixedly arranged on the upper mounting plate.
4. The load switch characteristic test apparatus according to claim 1,
the lower contact seat test assembly comprises a lower mounting frame, a lower air cylinder, a lower mounting plate and three lower contact assemblies, wherein the lower air cylinder is horizontally and fixedly arranged on the lower mounting frame, a push rod of the lower air cylinder is fixedly connected with the lower mounting plate, third guide rods are fixedly arranged at two ends of the lower mounting plate respectively, and the third guide rods penetrate through the lower support; the three lower contact assemblies are fixedly arranged on the lower mounting plate.
5. The load switch characteristic test apparatus according to claim 1,
the load switch characteristic testing device further comprises an auxiliary supporting device, the auxiliary supporting device comprises an auxiliary support, an auxiliary cylinder and a supporting block, the auxiliary cylinder is vertically arranged on the auxiliary support, and a push rod of the auxiliary cylinder is fixedly connected with the supporting block.
6. The load switch characteristic test apparatus according to claim 2,
the grounding contact assembly, the upper contact assembly and the lower contact assembly respectively comprise a contact mounting plate, a contact mounting seat and at least one contact, the contact mounting seat is fixedly connected with the contact mounting plate, and each contact is inserted into the contact mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021905366.0U CN213240429U (en) | 2020-09-03 | 2020-09-03 | Load switch characteristic testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021905366.0U CN213240429U (en) | 2020-09-03 | 2020-09-03 | Load switch characteristic testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213240429U true CN213240429U (en) | 2021-05-18 |
Family
ID=75872548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021905366.0U Active CN213240429U (en) | 2020-09-03 | 2020-09-03 | Load switch characteristic testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213240429U (en) |
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2020
- 2020-09-03 CN CN202021905366.0U patent/CN213240429U/en active Active
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