Device for testing withstand voltage of transformer

Abstract

The utility model discloses a voltage withstanding device for a transformer, which comprises a portal frame, a base arranged below the portal frame, rollers fixedly connected to the left and right sides of the bottom of the portal frame, the bottoms of the rollers movably contacting with the base, a controller mounted on the front side of the base, and a transformer movably placed on the top of the base. The top of the transformer is provided with a power interface. According to the utility model, the portal frame, the base, the rollers, the transformer, the power interface, the movable port, the threaded rod, the threaded block, the mounting plate, the hydraulic cylinder, the insulating plate, the voltage output rod, the driving mechanism, the servo motor, the servo rotating shaft, the driving gear, the driven gear, the positioning assembly, the vertical plate, the telescopic rod, the threaded sleeve, the threaded clamping rod, the handle and the clamping groove are matched with one another; and the effect that the position of the voltage output rod can be conveniently adjusted is achieved, then the voltage output rod can be conveniently connected with a power interface of the transformer in a butt joint mode, and therefore the using effect of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer withstand voltage testing device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. It can be divided into power transformer and special transformer according to its use.

[0003] At present, transformers need to undergo a withstand voltage test before leaving the factory, such as the patent with application number CN202210384236.4. The present invention discloses a transformer withstand voltage test device, which belongs to the field of withstand voltage test. A transformer withstand voltage test device includes a feeding conveyor belt and a sample to be tested, wherein the sample to be tested is placed on the upper end of the feeding conveyor belt, baffles are fixedly connected on both sides of the feeding conveyor belt, side brackets are fixedly connected to the outer side of the baffles, and the two baffles are fixedly connected to a suspension through the side brackets.

[0004] However, in actual use, the above patent has the following defects: it is not possible to conveniently adjust the position of the voltage output rod, and thus it is not possible to conveniently connect the voltage output rod with the power interface of the transformer, resulting in poor use effect. For this reason, we propose a transformer withstand voltage test device. Utility Model Content

[0005] The utility model aims to provide a transformer withstand voltage test device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a transformer withstand voltage test device, comprising:

[0007] Gantry;

[0008] A base is provided below the gantry, rollers are fixedly connected to the left and right sides of the bottom of the gantry, the bottom of the rollers is in active contact with the base, and a controller is installed on the front side of the base;

[0009] A transformer is movably placed on the top of the base, and a power interface is provided on the top of the transformer;

[0010] A movable opening, a movable opening is provided on the top of the gantry, bearings are fixedly connected to the left and right sides of the inner wall of the movable opening, the two bearings are rotatably connected by a threaded rod, a threaded block is threadedly connected at the center of the surface of the threaded rod, the top and bottom of the threaded block both penetrate the movable opening and extend to the outside of the movable opening, the threaded block is movably connected to the movable opening, a mounting plate is fixedly connected to the bottom of the threaded block, the lower part between the left and right sides of the inner wall of the movable opening is fixedly connected by a guide rod, the guide rod and the threaded block are slidably connected, a hydraulic cylinder is fixedly connected to the bottom of the mounting plate, an insulating plate is fixedly connected to the telescopic end of the hydraulic cylinder, and a voltage output rod is fixedly installed on the bottom of the insulating plate;

[0011] A driving mechanism is provided on the top of the gantry;

[0012] A positioning component is arranged on the top of the base.

[0013] Furthermore, the driving mechanism includes a servo motor, a servo shaft, a driving gear and a driven gear. The servo motor is fixedly connected to the left side of the top of the gantry, the servo shaft is fixedly connected to the output shaft of the servo motor, and the right end of the servo shaft is fixedly connected to the driving gear.

[0014] Furthermore, a driven gear is fixedly connected to a position on the surface of the threaded rod corresponding to the driving gear, and the driving gear and the driven gear are meshed with each other.

[0015] Furthermore, the positioning assembly includes a vertical plate, a telescopic rod, a threaded sleeve, a threaded clamping rod, a handle and a clamping slot. The front left side of the top of the base is fixedly connected with the vertical plate, and the front side of the vertical plate is fixedly connected with the telescopic rod.

[0016] Furthermore, the telescopic end of the telescopic rod passes through the vertical plate and extends to the outside of the vertical plate and is fixedly connected to the gantry. A threaded sleeve is fixedly connected to the lower left side of the gantry, and the internal thread of the threaded sleeve is connected to a threaded clamping rod.

[0017] Furthermore, the top of the threaded clamping rod passes through the threaded sleeve and extends to the outside of the threaded sleeve and is fixedly connected with a handle, and a plurality of clamping grooves are sequentially opened on the left side of the top of the base from front to back.

[0018] Furthermore, the bottom of the threaded clamping rod sequentially passes through the threaded sleeve and the clamping slot and extends to the inside of the clamping slot, and the threaded clamping rod is movably clamped with the clamping slot.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The utility model achieves the effect of conveniently adjusting the position of the voltage output rod through the cooperation of the gantry, base, roller, transformer, power interface, movable port, threaded rod, threaded block, mounting plate, hydraulic cylinder, insulating plate, voltage output rod, driving mechanism, servo motor, servo shaft, active gear, driven gear, positioning assembly, vertical plate, telescopic rod, threaded sleeve, threaded clamping rod, handle and clamping groove, so as to conveniently connect the voltage output rod with the power interface of the transformer, thereby greatly improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view structural schematic diagram of the utility model;

[0022] Figure 2 It is a side view structural schematic diagram of the utility model;

[0023] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0024] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0025] In the figure: 1. gantry; 2. base; 3. roller; 4. transformer; 5. power interface; 6. movable port; 7. threaded rod; 8. threaded block; 9. mounting plate; 10. hydraulic cylinder; 11. insulating plate; 12. voltage output rod; 13. driving mechanism; 131. servo motor; 132. servo shaft; 133. driving gear; 134. driven gear; 14. positioning assembly; 141. vertical plate; 142. telescopic rod; 143. threaded sleeve; 144. threaded clamping rod; 145. handle; 146. clamping slot. DETAILED DESCRIPTION

[0026] 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.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1-4 A transformer withstand voltage test device includes a gantry 1, a base 2 is arranged below the gantry 1, rollers 3 are fixedly connected to the left and right sides of the bottom of the gantry 1, the bottom of the roller 3 is in active contact with the base 2, a controller is installed on the front side of the base 2, a transformer 4 is movably placed on the top of the base 2, a power interface 5 is provided on the top of the transformer 4, a movable opening 6 is provided on the top of the gantry 1, bearings are fixedly connected to the left and right sides of the inner wall of the movable opening 6, the two bearings are rotatably connected by a threaded rod 7, a threaded block 8 is threadedly connected at the center of the surface of the threaded rod 7, and the threaded block The top and bottom of 8 both penetrate the movable opening 6 and extend to the outside of the movable opening 6. The threaded block 8 is movably connected to the movable opening 6. The bottom of the threaded block 8 is fixedly connected with a mounting plate 9. The lower part between the left and right sides of the inner wall of the movable opening 6 is fixedly connected by a guide rod. The guide rod and the threaded block 8 are slidably connected. The bottom of the mounting plate 9 is fixedly connected with a hydraulic cylinder 10. The telescopic end of the hydraulic cylinder 10 is fixedly connected with an insulating plate 11. The bottom of the insulating plate 11 is fixedly installed with a voltage output rod 12. A driving mechanism 13 is provided on the top of the gantry 1, and a positioning component 14 is provided on the top of the base 2.

[0030] Specifically, the driving mechanism 13 includes a servo motor 131, a servo shaft 132, a driving gear 133 and a driven gear 134. The servo motor 131 is fixedly connected to the left side of the top of the gantry 1, the servo shaft 132 is fixedly connected to the output shaft of the servo motor 131, and the right end of the servo shaft 132 is fixedly connected to the driving gear 133.

[0031] In a specific implementation, a driven gear 134 is fixedly connected to a position on the surface of the threaded rod 7 corresponding to the driving gear 133 , and the driving gear 133 and the driven gear 134 are meshed with each other.

[0032] Specifically, the positioning assembly 14 includes a vertical plate 141, a telescopic rod 142, a threaded sleeve 143, a threaded clamping rod 144, a handle 145 and a clamping slot 146. The vertical plate 141 is fixedly connected to the front left side of the top of the base 2, and the telescopic rod 142 is fixedly connected to the front side of the vertical plate 141.

[0033] During the specific implementation, the telescopic end of the telescopic rod 142 passes through the vertical plate 141 and extends to the outside of the vertical plate 141 and is fixedly connected to the gantry 1. A threaded sleeve 143 is fixedly connected to the lower left side of the gantry 1, and the internal thread of the threaded sleeve 143 is connected to the threaded clamping rod 144.

[0034] Specifically, the top of the threaded clamping rod 144 passes through the threaded sleeve 143 and extends to the outside of the threaded sleeve 143 and is fixedly connected to a handle 145. A plurality of clamping grooves 146 are sequentially opened on the left side of the top of the base 2 from front to back.

[0035] During specific implementation, the bottom of the threaded clamping rod 144 passes through the threaded sleeve 143 and the clamping groove 146 in sequence and extends to the inside of the clamping groove 146 , and the threaded clamping rod 144 and the clamping groove 146 are movably clamped.

[0036] In actual application: when in use, the transformer 4 to be tested is placed on the top of the base 2, and then according to the position of the power interface 5, the user rotates the handle 145 counterclockwise, so that the threaded clamping rod 144 is disengaged from the clamping slot 146, and then the gantry 1 is pushed forward or backward to a suitable position, and then the front and rear position of the voltage output rod 12 is adjusted. After the adjustment is completed, the handle 145 is rotated clockwise, so that the threaded clamping rod 144 is inserted into the corresponding clamping slot 146, and then the servo motor 131 drives the active gear 133 to rotate forward or reversely, so that the active gear 133 drives the driven gear 134 and the threaded rod 7 to rotate in turn, and then under the action of the thread, the thread block 8 drives the voltage output rod 12 to move left and right, so that the voltage output rod 12 moves to the top of the power interface 5, and then the hydraulic cylinder 10 drives the insulating plate 11 and the voltage output rod 12 to move downward, so that the voltage output rod 12 is docked with the power interface 5, and then the transformer 4 can be subjected to a withstand voltage test. Through the above steps, the position of the voltage output rod 12 can be conveniently adjusted, thereby facilitating the connection between the voltage output rod 12 and the power interface 5 .

[0037] All components in the present invention are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. At the same time, standard parts used in the present application documents can be purchased from the market, and each component in the present application document can be customized according to the description in the specification and drawings. The specific connection method of each component adopts conventional means such as mature bolts, rivets, welding, etc. in the prior art, and machinery, parts and equipment adopt conventional models in the prior art.

[0038] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the working principle, and the electrical connection between the electrical components should be completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The utility model mainly introduces the working principle and process, and no longer explains the electrical control.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer withstand voltage test device, characterized in that: include: Gantry (1); A base (2), wherein the base (2) is arranged below the gantry (1), rollers (3) are fixedly connected to the left and right sides of the bottom of the gantry (1), the bottom of the rollers (3) is in active contact with the base (2), and a controller is installed on the front side of the base (2); A transformer (4), the transformer (4) is movably placed on the top of the base (2), and a power interface (5) is provided on the top of the transformer (4); A movable opening (6), the top of the gantry (1) is provided with a movable opening (6), the left and right sides of the inner wall of the movable opening (6) are fixedly connected with bearings, the two bearings are rotatably connected via a threaded rod (7), a threaded block (8) is threadedly connected at the center of the surface of the threaded rod (7), the top and bottom of the threaded block (8) both penetrate the movable opening (6) and extend to the outside of the movable opening (6), the threaded block (8) is movably connected to the movable opening (6), the bottom of the threaded block (8) is fixedly connected with a mounting plate (9), the lower part between the left and right sides of the inner wall of the movable opening (6) is fixedly connected via a guide rod, the guide rod and the threaded block (8) are slidably connected, the bottom of the mounting plate (9) is fixedly connected with a hydraulic cylinder (10), the telescopic end of the hydraulic cylinder (10) is fixedly connected with an insulating plate (11), and the bottom of the insulating plate (11) is fixedly installed with a voltage output rod (12); A driving mechanism (13), wherein the top of the gantry (1) is provided with a driving mechanism (13); A positioning component (14), wherein a positioning component (14) is arranged on the top of the base (2).

2. A transformer withstand voltage test device according to claim 1, characterized in that: The driving mechanism (13) comprises a servo motor (131), a servo rotating shaft (132), a driving gear (133) and a driven gear (134); the servo motor (131) is fixedly connected to the left side of the top of the gantry (1); the servo rotating shaft (132) is fixedly connected to the output shaft of the servo motor (131); and the driving gear (133) is fixedly connected to the right end of the servo rotating shaft (132).

3. A transformer withstand voltage test device according to claim 2, characterized in that: A driven gear (134) is fixedly connected to the surface of the threaded rod (7) at a position corresponding to the driving gear (133), and the driving gear (133) and the driven gear (134) are meshed with each other.

4. A transformer withstand voltage test device according to claim 3, characterized in that: The positioning assembly (14) comprises a vertical plate (141), a telescopic rod (142), a threaded sleeve (143), a threaded clamping rod (144), a handle (145) and a clamping slot (146); the vertical plate (141) is fixedly connected to the front left side of the top of the base (2); and the telescopic rod (142) is fixedly connected to the front side of the vertical plate (141).

5. A transformer withstand voltage test device according to claim 4, characterized in that: The telescopic end of the telescopic rod (142) passes through the vertical plate (141) and extends to the outside of the vertical plate (141) and is fixedly connected to the gantry (1); a threaded sleeve (143) is fixedly connected to the lower left side of the gantry (1); and a threaded clamping rod (144) is internally threadedly connected to the threaded sleeve (143).

6. A transformer withstand voltage test device according to claim 5, characterized in that: The top of the threaded clamping rod (144) passes through the threaded sleeve (143) and extends to the outside of the threaded sleeve (143) and is fixedly connected to a handle (145). The left side of the top of the base (2) is provided with a plurality of clamping grooves (146) in sequence from front to back.

7. A transformer withstand voltage test device according to claim 6, characterized in that: The bottom of the threaded clamping rod (144) passes through the threaded sleeve (143) and the clamping groove (146) in sequence and extends to the inside of the clamping groove (146), and the threaded clamping rod (144) and the clamping groove (146) are movably clamped.

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