Relay protection device test platform

Abstract

A relay protection device test platform comprises a test board, a driving device is installed on the test board, and the driving device drives a cross-shaped fixing frame to rotate intermittently; a plurality of relay protection device fixing mechanisms are arranged on the cross-shaped fixing frame in the circumferential direction, and the relay protection device fixing mechanisms clamp relay protection devices; one side of the test board is provided with a current output end automatic plugging mechanism, one side of the current output end automatic plugging mechanism is electrically connected with the tester, and the output end of the current output end automatic plugging mechanism is plugged with or separated from the relay protection device. According to the relay protection device test platform provided by the utility model, the work of manually plugging and unplugging the test output end is avoided, meanwhile, continuous test can be performed, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a test platform, in particular to a relay protection device test platform. BACKGROUND

[0002] The relay protection device is the key equipment for detecting and isolating the fault in the power system, and it can act quickly when the system appears abnormal or fault, prevents the fault from expanding and guarantees the stable operation of the power system. The working principle is based on the change of the current, voltage and other electrical quantities when the fault occurs, and the change of these quantities is measured and compared with the preset threshold value to judge whether the fault occurs, so as to send the alarm or trip signal.

[0003] In order to detect whether the relay protection device produced can work normally, the relay protection device needs to be tested before the product is shipped or after the maintenance, and the test needs to use a special tester. After the output end of the detection line connected with the tester port is connected with the interface on the relay protection device, the test is completed by operating the tester to output the current of the relay protection device.

[0004] However, in the prior art, when batch testing of the relay protection device is carried out, the tester needs to plug and unplug the output pin and the relay protection device many times, and during the testing process of the two groups of relay protection devices, after the testing of one group of relay protection devices is completed, the tested relay protection device needs to be removed first, and then the new relay protection device is placed on the test table, so the efficiency is low. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem to provide a relay protection device test platform, compared with the prior art, the manual test output end is inserted and pulled out, and the testing of every two groups of relay protection devices can be continuously carried out, the process of removing the tested relay protection device and placing the new untested relay protection device in the existing test is avoided, the interval time between two tests is shortened, and the test efficiency is improved.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] A relay protection device test platform, including the test table, the test table is installed with the drive device, and the drive device drives the cross fixed frame to rotate intermittently;A plurality of relay protection device fixing mechanisms are arranged on the cross fixed frame in a circumferential direction, and the relay protection device fixing mechanism clamps the relay protection device;The test table is installed with the current output end automatic plug and unplug mechanism on one side, and the current output end automatic plug and unplug mechanism is electrically connected with the tester on one side, and the output end of the current output end automatic plug and unplug mechanism is inserted or separated from the relay protection device.

[0008] The relay protection device fixing mechanism comprises a fixing base, a screw rod driving mechanism is installed on the fixing base, the screw rod driving mechanism drives two mobile adjusting supports to be relatively close or far away from each other, a clamping device is installed on each mobile adjusting support, and the left and right clamping devices clamp the relay protection device.

[0009] The screw rod driving mechanism comprises a double-output-shaft motor, one first screw rod is connected to each output shaft of the double-output-shaft motor, the thread rotation directions of the two first screw rods are opposite, one end of each first screw rod is rotatably connected to a screw rod mounting seat at the bottom of the fixing base, the other end of each first screw rod is threadedly connected to a threaded transmission block on the mobile adjusting support, a first sliding rod is fixed at the bottom of the fixing base, and the first sliding rod is in sliding fit with a second sliding rod mounting seat on the mobile adjusting support.

[0010] The clamping device comprises a sliding rail fixed at one end of the mobile adjusting support, a second screw rod is rotatably installed on the sliding rail, the second screw rod is driven by a second motor, a first sliding block is threadedly connected to the second screw rod, the first sliding block is in sliding fit with the sliding rail, and an L-shaped clamping plate is installed at the top of the first sliding block.

[0011] The current output end automatic plugging mechanism comprises a supporting column, a first guide groove is installed on the supporting column, a second sliding block moves left and right along the first guide groove and is locked, the bottom of the second sliding block is fixed with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a second guide groove through a connecting seat, a third sliding block moves back and forth along the second guide groove and is locked, and the bottom of the third sliding block is fixed with a first output end fixing frame.

[0012] The first output end fixing frame and the second output end fixing frame are provided with output end fixing grooves at lower ends, the output end fixing grooves are provided with limiting grooves, the outer wall of the corresponding output end plug is provided with a limiting ring, and the limiting ring is clamped with the limiting groove.

[0013] The clamps formed by the first output end fixing frame and the second output end fixing frame are multiple groups, the number and positions of the clamps correspond to the interfaces of the relay protection device one by one.

[0014] One end of the second guide groove is provided with an insertion groove, the end head supporting plate is inserted into the insertion groove and is screwed into locking through a locking screw.

[0015] The relay protection device testing platform has the following technical effects:

[0016] 1) by setting the adjustable relay protection device fixing mechanism, and can be applicable to different length and width of the relay protection device fixed, at the same time through the current output end automatic plug-in mechanism cooperation, make the device compared with prior art, without manual plug-in test output end work, at the same time, every two groups of relay protection device test can be continuous, avoid the process of taking down the test after the relay protection device and place the new one that has not been tested, shorten the interval between two times of test, improve the test efficiency.

[0017] 2) by setting the double shaft motor, double shaft motor can drive the two first screw rod movement, so as to adjust the two mobile adjusting support close or far, so as to adjust according to the length of the relay protection device; by setting the clamping device on the mobile adjusting support, the width between the two groups of L type clamping plate can be adjusted according to the width of the relay protection device. Thus the relay protection device fixing mechanism can adapt to different specifications of relay protection device.

[0018] 3) by the first guide groove, the second slider cooperation, can adjust the left and right position of the output end plug; by the second guide groove, the third slider cooperation, can adjust the front and back position of the output end plug; by the first output end fixed frame, the second output end fixed frame, can clamp and fix the output end plug. Thus ensure that the output end plug is adjusted to one-to-one correspondence with the interface of the relay protection device; by setting the electric telescopic rod, the height position of the output end plug can be adjusted, the output end plug and the interface of the relay protection device are inserted. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in connection with the drawings and examples:

[0020] Figure 1 It is the structure schematic diagram of the utility model.

[0021] Figure 2 It is the front view of the utility model.

[0022] Figure 3 It is the whole structure schematic diagram of relay protection device fixing mechanism in the utility model (first view angle).

[0023] Figure 4 It is the local structure schematic diagram of relay protection device fixing mechanism in the utility model (first view angle).

[0024] Figure 5 It is the whole structure schematic diagram of relay protection device fixing mechanism in the utility model (second view angle).

[0025] Figure 6 It is the local structure schematic diagram of relay protection device fixing mechanism in the utility model (second view angle).

[0026] Figure 7 It is the overall structure schematic view of the automatic plug mechanism of the current output end in the utility model.

[0027] Figure 8 It is Figure 7 The partial enlarged schematic view of A in the middle.

[0028] Figure 9 It is the front view of the automatic plug mechanism of the current output end in the utility model.

[0029] Figure 10 It is the installation schematic view of the output end plug in the utility model. Specific implementation

[0030] As Figures 1-2 The utility model relates to a kind of relay protection device test platform, including test table 1, test table 1 top is equipped with tester 2, test table 1 bottom is equipped with first motor 3, test table 1 top is equipped with bearing seat 4, bearing seat 4 inner side rotation is equipped with shaft 5.The bottom of shaft 5 is connected with the output end of first motor 3, and the top of shaft 5 is fixed with cross fixed frame 6.Four end portions of cross fixed frame 6 are equipped with relay protection device fixing mechanism 7.The fixing of relay protection device fixing mechanism 7 is suitable for the relay protection device of different length and width.In the top of test table 1, current output end automatic plug mechanism 23 is also fixedly installed in relay protection device fixing mechanism 7 side, by the cooperation of current output end automatic plug mechanism 23, compared with prior art, this device eliminates the work of manually plugging test output end, and the test of every two groups of relay protection device can be continuously carried out, eliminates the process of taking out the relay protection device after test and placing new relay protection device not tested during continuous test, shortens the interval length between twice tests, and improves test efficiency.

[0031] As Figures 3-6The relay protection device fixing mechanism 7 includes four sets of fixing seats 8 fixed with the end of the cross fixing frame 6, and each set of fixing seat 8 is fixed with a first sliding rod mounting seat 9 and a screw rod mounting seat 10 on the left and right sides of the bottom, and a double-output shaft motor 12 is installed on each set of fixing seat 8 at the screw rod mounting seat 10. The double-output shaft motor 12 is a prior art, which has two output shafts and can simultaneously drive different devices left and right. The first sliding rod mounting seat 9 is fixed with a first sliding rod 11, and the first sliding rod 11 extends out of both ends and is in sliding cooperation with a set of second sliding rod fixing seat 15. The screw rod mounting seat 10 on the left and right sides of the double-output shaft motor 12 is rotatably installed with a first screw rod 13, and the two output ends of the double-output shaft motor 12 are connected with the two first screw rods 13. The screw threads of the two first screw rods 13 are opposite, and the other ends of the two first screw rods 13 are correspondingly screwed with a screw transmission block 16. The second sliding rod fixing seat 15 and the screw transmission block 16 on the left side are fixedly installed on the lower part of the left moving adjusting support 14, and the second sliding rod fixing seat 15 and the screw transmission block 16 on the right side are fixedly installed on the lower part of the right moving adjusting support 14.

[0032] Since the screw threads of the first screw rods 13 on the left and right sides of the double-output shaft motor 12 are opposite, when the double-output shaft motor 12 drives the first screw rods 13 to rotate, it can drive the left and right moving adjusting supports 14 to move towards or away from each other.

[0033] One end of each moving adjusting support 14 is provided with a clamping device, which includes a sliding rail 17 fixed on one end of the moving adjusting support 14, a second motor 18 installed on one end of the sliding rail 17, a second screw rod 19 rotatably installed on the inner side of the sliding rail 17, one end of the second screw rod 19 fixedly connected with the output end of the second motor 18, and the second screw rod 19 driven to rotate by the second motor 18. A first sliding block 20 is slidably installed on the inner side of the sliding rail 17 and is in threaded connection with the second screw rod 19. A clamping plate support 21 is installed on the top of the first sliding block 20, and an L-shaped clamping plate 22 is installed on one side of the clamping plate support 21.

[0034] The second motor 18 drives the second screw rod 19 to rotate, thereby driving the first sliding block 20 to drive the clamping plate support 21 and the L-shaped clamping plate 22 to move, and by adjusting the L-shaped clamping plate 22, the width between the two L-shaped clamping plates 22 can be adjusted according to the width of the relay protection device.

[0035] As Figures 7-10As shown, the current output end automatic plug mechanism 23 includes a support column 24 fixed on the top of the test table 1, the top of the support column 24 is provided with a first guide slot 25, the inner side of the first guide slot 25 is fixedly provided with a second sliding rod 26, a second sliding block 27 is penetrated by the second sliding rod 26 and is in sliding connection with the second sliding rod 26, and a locking screw 44 is threadedly connected to the upper end of the second sliding block 27. When the second sliding block 27 is slid to the position, the locking screw 44 is screwed into the limiting hole of the second sliding rod 26, so that the position of the second sliding block 27 is locked.

[0036] The bottom of the second sliding block 27 is fixedly provided with an electric telescopic rod 28, and the bottom of the electric telescopic rod 28 is fixed with a connecting seat 29. One end of the connecting seat 29 is fixedly connected with a second guide slot 30. The inner side of the second guide slot 30 is fixedly provided with a third sliding rod 31 along the length direction. A third sliding block 32 is penetrated by the third sliding rod 31 and is in sliding connection with the third sliding rod 31. After the third sliding block 32 is slid to the position, the locking screw 44 can be screwed to realize fixation.

[0037] A first output end fixed frame 33 is fixed to the bottom of the third sliding block 32, and a second output end fixed frame 34 is detachably arranged on one side of the first output end fixed frame 33. The first output end fixed frame 33 and the second output end fixed frame 34 can be fixed by screws 39 after being spliced. The bottom of the first output end fixed frame 33 and the second output end fixed frame 34 is provided with an output end fixed slot 35, and the inner wall of the output end fixed slot 35 is clamped with the output end plug 37 after the first output end fixed frame 33 and the second output end fixed frame 34 are spliced.

[0038] According to the position of the interface on the relay protection device, the position of the output end plug 37 needs to be adjusted. The left and right positions of the output end plug 37 can be adjusted by sliding the second sliding block 27 to drive the electric telescopic rod 28 and the second guide slot 30 to move left and right. The front and rear positions of the output end plug 37 can be adjusted by sliding the third sliding block 32 to drive the first output end fixed frame 33 and the second output end fixed frame 34 to move, so that the output end plug 37 clamped in the middle of each group of first output end fixed frame 33 and second output end fixed frame 34 can be aligned with the corresponding interface on the relay protection device. After the adjustment is completed, the locking screws 44 on the second sliding block 27 and the third sliding block 32 can be tightened to fix the second sliding block 27 and the third sliding block 32, and the test can be started.

[0039] During the test, the electric telescopic rod 28 is controlled to drive the connecting seat 29 to descend, thereby driving the first output end fixed frame 33, the second output end fixed frame 34 and the output end plug 37 to descend, so that the pins on the output end plug 37 are inserted into the interface on the relay protection device, and then the tester 2 can be controlled to test the relay protection device.

[0040] The inner side of the output end fixed slot 35 is provided with a limiting slot 36, and the outer side of the corresponding output end plug 37 is provided with a limiting ring 38 which is integrally formed.

[0041] The limiting slot 36 and the limiting ring 38 are inserted and connected, and the first output end fixed frame 33, the second output end fixed frame 34 and the output end plug 37 are further limited and fixed, so as to ensure that the output end plug 37 is installed firmly.

[0042] As shown in Figure 10 The second guide slot 30 is provided with an insertion slot 40 at one end, the insertion slot 40 is inserted and connected with an insertion plate 41, and one end of the insertion plate 41 is integrally formed with an end support plate 42. The end support plate 42 and the insertion slot 40 are provided without affecting the structural strength of the second guide slot 30 and the third sliding rod 31, which facilitates disassembly, addition and subtraction of the third sliding block 32.

[0043] The end support plate 42 and one end of the third sliding rod 31 are provided with screw holes 43, and the locking screw 44 is screwed into the screw holes 43 of the two, so as to fix the end support plate 42 and the third sliding rod 31.

[0044] Through the setting of the locking screw 44, the second sliding block 27 and the third sliding block 32 can be fixed, and the end support plate 42 and the third sliding rod 31 can be fixed. The end support plate 42 is disassembled, and the third sliding block 32 can be replaced.

[0045] Working principle and process:

[0046] 1), in use, the limiting ring 38 on the side of the output end plug 37 is embedded in the limiting slot 36 in the output end fixed slot 35 of the first output end fixed frame 33. The second output end fixed frame 34 is combined with the first output end fixed frame 33, the first output end fixed frame 33 and the second output end fixed frame 34 are fixed by using the screw 39, and the output end plug 37 is clamped. Connect the output end plug 37 with the detection circuit, and connect the terminal at the other end of the detection circuit with the test interface on the tester 2.

[0047] 2), place the relay protection device to be detected on the top of the relay protection device fixing mechanism 7, and control the double output shaft motor 12 and the second motor 18 to operate.

[0048] The first screw rod 13 is driven to rotate by the double output shaft motor 12, and under the guidance of the first sliding rod 11, two groups of mobile adjusting supports 14 together with L-shaped clamping plates 22 are driven to move close to each other, so as to adjust the overall length of the relay protection device fixing mechanism 7, which can be adjusted according to the length of the relay protection device.

[0049] The second motor 18 drives the second screw rod 19 to rotate, thereby driving the first sliding block 20 to drive the clamping plate support 21 and the L-shaped clamping plate 22 to move. By adjusting the L-shaped clamping plate 22, the width between the two groups of L-shaped clamping plates 22 can be adjusted according to the width of the relay protection device. The relay protection device is fixed by the two groups of L-shaped clamping plates 22, and can be applied to relay protection devices of different lengths and widths.

[0050] 3) Adjust the position of the output plug 37 according to the position of the interface on the relay protection device.

[0051] The second sliding block 27 is slid to drive the electric telescopic rod 28 and the second guide groove 30 to move, thereby adjusting the left-right position of the output plug 37.

[0052] The third sliding block 32 is slid to drive the first output end fixing frame 33 and the second output end fixing frame 34 to move, thereby adjusting the front-back position of the output plug 37. Finally, the plurality of output plugs 37 can be aligned with the interfaces on the relay protection device one by one.

[0053] After the adjustment is completed, the locking screw 44 on the second sliding block 27 and the third sliding block 32 is tightened to fix the second sliding block 27 and the third sliding block 32, and the test can be started.

[0054] 4) During the test, the electric telescopic rod 28 is controlled to drive the connecting seat 29 to descend, thereby driving the output plug 37 to descend. The pins on the output plug 37 are inserted into the interfaces on the relay protection device. Then the tester 2 can be controlled to test the relay protection device.

[0055] 5) After the test is completed, the electric telescopic rod 28 is controlled to drive the output plug 37 to rise, and the output plug 37 is pulled out of the interfaces on the relay protection device. Then the first motor 3 is controlled to rotate the shaft 5 by 90°, so that the relay protection device on the next relay protection device fixing mechanism 7 moves below the output plug 37. The electric telescopic rod 28 is controlled to extend again to drive the output plug 37 to descend, and the pins at the bottom of the output plug 37 are inserted into the interfaces on the relay protection device again for testing.

[0056] While testing the relay protection device in this group, the relay protection device on the previous relay protection device fixing mechanism 7 that has completed the test is removed and replaced with a new relay protection device that has not been tested. In this way, the pins of the output plug 37 can be automatically connected to the interfaces on the relay protection device, and while testing a group of relay protection devices, the relay protection device that has completed the test can be removed and replaced with a new relay protection device that has not been tested.

[0057] Compared with the prior art, the device eliminates the manual plugging and unplugging of the test output, and the test of every two groups of relay protection devices can be continuously performed, thereby eliminating the process of removing the tested relay protection devices and placing new untested relay protection devices during continuous testing, shortening the interval time between two tests, and improving the test efficiency.

Claims

1. A test platform for relay protection devices, characterized in that: The utility model provides a kind of relay protection device test bench, including test bench (1), test bench (1) is installed with driving device, driving device drives cross fixed frame (6) intermittent rotation;The cross fixed frame (6) is peripherally provided with multiple relay protection device fixing mechanisms (7), and relay protection device fixing mechanism (7) clamps relay protection device;Test bench (1) side is installed with current output end automatic plug mechanism (23), and current output end automatic plug mechanism (23) side is electrically connected with test instrument (2), and the output end of current output end automatic plug mechanism (23) is plugged or separated from relay protection device.

2. The platform of claim 1, wherein: The relay protection device fixing mechanism (7) includes a fixed seat (8), a lead screw drive mechanism is installed on the fixed seat (8), and the lead screw drive mechanism drives two mobile adjusting supports (14) to move closer or farther away from each other. Each mobile adjusting support (14) is installed with a clamping device, and the left and right clamping devices clamp the relay protection device.

3. The platform of claim 2, wherein: The lead screw drive mechanism includes a double-output shaft motor (12), and the two output shafts of the double-output shaft motor (12) are respectively connected with a first lead screw (13). The threads of the two first lead screws (13) are opposite in direction. One end of each first lead screw (13) is rotatably connected with a screw rod mounting seat (10) at the bottom of the fixed seat (8), and the other end is threadedly connected with a threaded transmission block (16) on the mobile adjusting support (14). A first sliding rod (11) is fixed to the bottom of the fixed seat (8), and the first sliding rod (11) is slidably connected with a second sliding rod fixing seat (15) on the mobile adjusting support (14).

4. The platform of claim 2, wherein: The clamping device includes a sliding rail (17) fixed to one end of the mobile adjusting support (14), and a second lead screw (19) is rotatably installed on the sliding rail (17). The second lead screw (19) is driven by a second motor (18). A first sliding block (20) is threadedly connected to the second lead screw (19), and the first sliding block (20) is slidably connected with the sliding rail (17). An L-shaped clamping plate (22) is installed on the top of the first sliding block (20).

5. The platform of claim 1, wherein: The current output end automatic plug mechanism (23) includes a support column (24), and a first guide slot (25) is installed on the support column (24). A second sliding block (27) moves left and right along the first guide slot (25) and is locked. An electric telescopic rod (28) is fixed to the bottom of the second sliding block (27), and the output end of the electric telescopic rod (28) is fixedly connected with a second guide slot (30) through a connecting seat (29). A third sliding block (32) moves forward and backward along the second guide slot (30) and is locked. A first output end fixing frame (33) is fixed to the bottom of the third sliding block (32), and the first output end fixing frame (33) is combined with a second output end fixing frame (34) and clamps an output plug (37).

6. The platform of claim 5, wherein: The first output end fixing frame (33) and the second output end fixing frame (34) are provided with an output fixing slot (35) at the lower end, and the output fixing slot (35) is provided with a limiting groove (36). The outer wall of the corresponding output plug (37) is provided with a limiting ring (38), and the limiting ring (38) is connected with the limiting groove (36).

7. The platform of claim 6, wherein: The first output end fixed frame (33) and the second output end fixed frame (34) constitute a plurality of clamps, and the number and position of the clamps correspond to the interfaces of the relay protection device one by one.

8. The platform of claim 7, wherein: One end of the second guide groove (30) is provided with an insertion groove (40), the end support plate (42) is inserted with the insertion groove (40) and is screwed into the lock by the locking screw (44).

Images