Self-lifting type high-capacity series resonance withstand voltage test device

Abstract

The utility model discloses a self-lifting type large-capacity series resonance withstand voltage test device, which comprises a variable-frequency power supply, the output end of the variable-frequency power supply is electrically connected with an exciting transformer, the output end of the exciting transformer is electrically connected with a high-voltage reactor, and the output end of the high-voltage reactor is electrically connected with a capacitive voltage divider. Through the design of the base, the L-shaped rotating frame, the fixing frame, the extrusion block, the pushing piece and the moving piece, when the high-voltage reactors need to be stacked and fixed, the high-voltage reactors are sequentially and transversely placed at the top of the L-shaped rotating frame, and then the moving piece drives the extrusion block to extrude and fix the high-voltage reactors towards one side of the L-shaped rotating frame; and then the L-shaped rotating frame is driven by the pushing piece to rotate at the top of the base, so that the multiple high-voltage reactors are vertically stacked together, the situation that when the high-voltage reactors are stacked, the high-voltage reactors need to be manually carried at the required height is avoided, and therefore manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental devices, in particular to a self-lifting large-capacity series resonance withstand voltage test device. Background Art

[0002] Large capacity means that the device is suitable for handling high-capacity current or voltage, and is used to test large power systems or equipment. The variable frequency series resonance voltage withstand test device is composed of a variable frequency power supply, an excitation transformer, a high-voltage reactor and a capacitive voltage divider. When in use, the high-voltage reactors are stacked together end to end to avoid the problem of insufficient discharge distance from the ground. When stacking, it is necessary to move multiple high-voltage reactors to the required height in turn for stacking, which results in a large amount of manpower being wasted when stacking the high-voltage reactors. Summary of the invention

[0003] The utility model aims to provide a self-lifting large-capacity series resonance withstand voltage test device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-lifting large-capacity series resonant withstand voltage test device, comprising a variable frequency power supply, the output end of the variable frequency power supply is electrically connected to an excitation transformer, the output end of the excitation transformer is electrically connected to a high-voltage reactor, the output end of the high-voltage reactor is electrically connected to a capacitive voltage divider, a lifting assembly for installing the high-voltage reactor is provided at the bottom of the high-voltage reactor, the lifting assembly comprises a base, the top of the base is hinged with an L-shaped rotating frame, one side of the L-shaped rotating frame is provided with a pushing member, the other side of the L-shaped rotating frame is provided with a fixed frame, one side of the fixed frame is provided with an extrusion block for fixing the position of the high-voltage reactor, and one side of the extrusion block is provided with a moving member.

[0005] Preferably, the pushing member includes a mounting groove opened on the top of the base, an electric push rod is hinged on the inner wall of the bottom end of the mounting groove, and the electric push rod is hinged on one side of the L-shaped rotating frame.

[0006] Preferably, a storage groove is provided on the top of the base, and the L-shaped rotating frame is inserted and connected inside the storage groove.

[0007] Preferably, a positioning groove for limiting the movement of the high-voltage reactor is provided on the top of the L-shaped rotating frame.

[0008] Preferably, a sliding groove is provided on one side of the fixed frame, the extrusion block is inserted and connected inside the sliding groove, a threaded groove is provided on one side of the extrusion block, a threaded rod is inserted and connected through the internal thread of the threaded groove, a twist cap is fixedly connected to one end of the threaded rod, the threaded rod is inserted and connected to the inner wall of one side of the sliding groove, and a fixing piece for fixing the position of the threaded rod is provided in the middle of the threaded rod.

[0009] Preferably, the fixing member comprises a positioning ring arranged on an inner wall of one side of the sliding groove, and the positioning ring is sleeved on the middle part of the threaded rod.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model adopts the design of the base, the L-shaped rotating frame, the fixing frame, the extrusion block, the pushing member and the moving member. When the high-voltage reactors need to be stacked and fixed, the high-voltage reactors are sequentially placed horizontally on the top of the L-shaped rotating frame, and then the moving member drives the extrusion block to extrude and fix the high-voltage reactor to one side of the L-shaped rotating frame, and then the pushing member drives the L-shaped rotating frame to rotate on the top of the base, so that a plurality of high-voltage reactors are vertically stacked together, avoiding the height required for manually carrying the high-voltage reactors when they are stacked, thereby saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front sectional structural schematic diagram of the utility model.

[0013] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A.

[0014] Figure 3 It is a schematic diagram of a partial top-view cross-sectional structure of the utility model.

[0015] In the figure: 1. frequency conversion power supply; 2. excitation transformer; 3. high-voltage reactor; 4. capacitor voltage divider; 5. base; 6. L-shaped rotating frame; 7. fixed frame; 8. extrusion block; 9. sliding groove; 10. threaded groove; 11. threaded rod; 12. twist cap; 13. positioning ring; 14. positioning groove; 15. electric push rod; 16. storage groove; 17. installation groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1-3 A self-lifting large-capacity series resonant withstand voltage test device shown in the figure includes a variable frequency power supply 1, the output end of the variable frequency power supply 1 is electrically connected to an excitation transformer 2, the output end of the excitation transformer 2 is electrically connected to a high-voltage reactor 3, the output end of the high-voltage reactor 3 is electrically connected to a capacitive voltage divider 4, and a lifting component for installing the high-voltage reactor 3 is arranged at the bottom of the high-voltage reactor 3, and the lifting component includes a base 5, and the top of the base 5 is hinged with an L-shaped rotating frame 6, one side of the L-shaped rotating frame 6 is provided with a pushing member, and the other side of the L-shaped rotating frame 6 is provided with a fixed frame 7, one side of the fixed frame 7 is provided with an extrusion block 8 for fixing the position of the high-voltage reactor 3, and one side of the extrusion block 8 is provided with a moving member.

[0018] It should be noted that the variable frequency power supply 1, excitation transformer 2, high voltage reactor 3 and capacitor voltage divider 4 are components of a frequency modulation type series resonance test device of model JHXZ83. The cross section of the L-shaped rotating frame 6 is set to be L-shaped. The L-shaped rotating frame 6 is hinged on the top of the base 5 so that the L-shaped rotating frame 6 can be driven by the pusher to rotate on the top of the base 5. When the high voltage reactor 3 needs to be installed, the L-shaped rotating frame 6 is first rotated so that its long side is rotated to be parallel to the base 5. Then, the high-voltage reactor 3 is placed on the long side of the L-shaped rotating frame 6 in sequence, and then the extrusion block 8 is driven by the moving part to move toward the high-voltage reactor 3. The high-voltage reactor 3 is clamped and fixed by the extrusion block 8 and the L-shaped rotating frame 6 to prevent the high-voltage reactor 3 from moving at will; an arc-shaped groove adapted to the outer wall of the high-voltage reactor 3 is provided on one side of the extrusion block 8. When in use, the arc-shaped groove is fitted with the outer wall of the high-voltage reactor 3, and the contact area between the extrusion block 8 and the high-voltage reactor 3 is increased through the arc-shaped design.

[0019] Specifically, the push member includes a mounting groove 17 provided on the top of the base 5 , an electric push rod 15 is hingedly connected to the inner wall of the bottom end of the mounting groove 17 , and the electric push rod 15 is hingedly connected to one side of the L-shaped rotating frame 6 .

[0020] It should be noted that the electric push rod 15 is an electric telescopic rod of model BJTG-001. When in use, the output end of the electric push rod 15 drives the connection point between the L-shaped rotating frame 6 and the electric push rod 15 to move, so that the L-shaped rotating frame 6 rotates on the top of the base 5.

[0021] Specifically, a receiving groove 16 is formed on the top of the base 5 , and the L-shaped rotating frame 6 is inserted and connected inside the receiving groove 16 .

[0022] Specifically, a positioning groove 14 for limiting the movement of the high-voltage reactor 3 is provided on the top of the L-shaped rotating frame 6 .

[0023] It should be noted that the positioning groove 14 is adapted to the bottom of the high-voltage reactor 3 and is used to insert the bottom end of the high-voltage reactor 3 into the positioning groove 14 during use, thereby preventing the high-voltage reactor 3 from being displaced due to collision.

[0024] Specifically, a sliding groove 9 is opened on one side of the fixed frame 7, and the extrusion block 8 is inserted and connected inside the sliding groove 9. A threaded groove 10 is opened on one side of the extrusion block 8. A threaded rod 11 is inserted and connected to the internal thread of the threaded groove 10. A twist cap 12 is fixedly connected to one end of the threaded rod 11. The threaded rod 11 is inserted and connected to the inner wall of one side of the sliding groove 9, and a fixing part for fixing the position of the threaded rod 11 is set in the middle of the threaded rod 11.

[0025] Specifically, the fixing member includes a positioning ring 13 arranged on the inner wall of one side of the sliding groove 9 , and the positioning ring 13 is sleeved on the middle part of the threaded rod 11 .

[0026] It should be noted that the positioning ring 13 is fixedly mounted on the middle part of the threaded rod 11, and the positioning ring 13 is restricted by the inner wall of one side of the sliding groove 9, so that it cannot move to the side of the torsion cap 12. When the threaded rod 11 is subjected to the pulling force on one side of the torsion cap 12, the threaded rod 11 is restricted by the positioning ring 13, so that the threaded rod 11 cannot move to the side of the torsion cap 12. The sliding groove 9 is rectangular and matched with the part of the extrusion block 8 that penetrates the sliding groove 9. Therefore, the rectangular design can avoid the rotation of the extrusion block 8 inside the sliding groove 9. When the position of the extrusion block 8 needs to be moved, the torsion cap 12 is rotated to drive the threaded rod 11 to rotate, and the extrusion block 8 that is threadedly connected to it and cannot rotate is driven to move by the threaded rod 11.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-lifting large-capacity series resonant withstand voltage test device, comprising a variable frequency power supply (1), the output end of the variable frequency power supply (1) is electrically connected to an excitation transformer (2), the output end of the excitation transformer (2) is electrically connected to a high-voltage reactor (3), and the output end of the high-voltage reactor (3) is electrically connected to a capacitive voltage divider (4), characterized in that: A lifting assembly for mounting the high-voltage reactor (3) is arranged at the bottom of the high-voltage reactor (3), the lifting assembly comprising a base (5), an L-shaped rotating frame (6) being hingedly connected to the top of the base (5), a pushing member being arranged on one side of the L-shaped rotating frame (6), a fixing frame (7) being arranged on the other side of the L-shaped rotating frame (6), an extrusion block (8) for fixing the position of the high-voltage reactor (3) being arranged on one side of the fixing frame (7), and a moving member being arranged on one side of the extrusion block (8).

2. A self-lifting large-capacity series resonance withstand voltage test device according to claim 1, characterized in that: The pushing member comprises a mounting groove (17) formed on the top of the base (5), an electric push rod (15) is hingedly connected to the inner wall at the bottom end of the mounting groove (17), and the electric push rod (15) is hingedly connected to one side of the L-shaped rotating frame (6).

3. A self-lifting large-capacity series resonance withstand voltage test device according to claim 1, characterized in that: A storage groove (16) is provided on the top of the base (5), and the L-shaped rotating frame (6) is inserted and connected inside the storage groove (16).

4. A self-lifting large-capacity series resonance withstand voltage test device according to claim 1, characterized in that: A positioning groove (14) for limiting the movement of the high-voltage reactor (3) is provided on the top of the L-shaped rotating frame (6).

5. A self-lifting large-capacity series resonance withstand voltage test device according to claim 1, characterized in that: A sliding groove (9) is provided on one side of the fixing frame (7), the extrusion block (8) is inserted and connected inside the sliding groove (9), a threaded groove (10) is provided on one side of the extrusion block (8), a threaded rod (11) is inserted and connected through the internal threads of the threaded groove (10), one end of the threaded rod (11) is fixedly connected to a twist cap (12), the threaded rod (11) is inserted and connected to the inner wall of one side of the sliding groove (9), and a fixing piece for fixing the position of the threaded rod (11) is provided in the middle of the threaded rod (11).

6. A self-lifting large-capacity series resonance withstand voltage test device according to claim 5, characterized in that: The fixing member comprises a positioning ring (13) arranged on an inner wall of one side of the sliding groove (9), and the positioning ring (13) is sleeved on the middle part of the threaded rod (11).

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