Portable DTU simulation test device

Abstract

The utility model belongs to the field of simulation testing, and particularly relates to a portable DTU simulation testing device which comprises a main body and a movable testing device. The movable testing device is provided with a servo motor, the output end of the servo motor is fixedly provided with a first transmission wheel, one side of the first transmission wheel is movably provided with a first supporting block, and the periphery of the first transmission wheel is in transmission connection with a transmission belt; a servo motor is driven to enable a transmission belt to drive a movable seat to perform linear displacement, the position of a movable contact knife is controlled during movement, so that butt joint work is performed aiming at different static contact seats, and when the movable contact knife moves to be aligned with the static contact seats, a hydraulic cylinder is driven to enable a piston rod at the output end to control a bearing rod through an insulating bottom plate, so that butt joint work is performed. And one end of the bearing rod performs circumferential movement by taking the joint of the second insulator as an axis, so that the movable contact knife is butted with the static contact seat, the movable butting function is realized, the problem that a line needs to be reconnected, replaced and adjusted is solved, and the adaptability in use is improved.

Description

Technical Field

[0001] The utility model relates to the field of simulation testing, in particular to a portable DTU simulation testing device. Background Art

[0002] As a testing tool, the simulated circuit breaker can simulate the working status of an actual circuit breaker, providing a safe and efficient solution for the commissioning and maintenance of distribution automation equipment.

[0003] Chinese patent number CN202410681961.7 discloses a portable DTU simulation test device, comprising: a signal interaction panel, a ring main unit action simulation module, an operation display simulation panel, and a control circuit; the signal interaction panel is integrated with an analog signal interface for realizing voltage and current analog signal interaction with the DTU device and controlling the reception and transmission of signals; the ring main unit action simulation module is connected to the signal interaction panel and is used to accurately simulate the open, closed, and fault signals of the ring main unit and test the remote signaling response of the DTU device; the operation display simulation panel is connected to the control circuit and is used to perform switch simulation actions in manual or automatic operation modes and provide immediate operation feedback; the control circuit is connected to the signal interaction panel, the ring main unit action simulation module, and the operation display simulation panel, and is used to uniformly control the generation of analog signals, processing telemetry data, remote signaling alarms, sending and receiving remote control commands, and communication with the DTU device.

[0004] From the above, it can be seen that the telemetering, telesignaling and remote control functions of the DTU equipment can be fully tested without power outage, which improves the test efficiency. However, this case still has the following shortcomings: the existing simulated circuit breakers are expensive, complex in function, large in size, and have a small scope of application. During the simulation test, it is often necessary to perform closing and opening operations and other tests. During the operation, the knife switch cannot be moved, which leads to the need to rewire, replace and adjust the line. There are certain limitations in use, and the efficiency of simulation testing is gradually reduced.

[0005] Therefore, in order to solve the above problems, a portable DTU simulation test device is proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology and address the problem that lines need to be rewired, replaced and adjusted, the utility model proposes a portable DTU simulation test device.

[0007] The technical solution adopted by the utility model to solve its technical problem is: a portable DTU simulation test device described in the utility model includes a main body and a movable test device; the movable test device is installed with a servo motor, the output end of the servo motor is fixedly installed with a first transmission wheel, one side of the first transmission wheel is movably installed with a first support block, the first transmission wheel is transmission-connected with a transmission belt all around, the other side of the transmission belt is transmission-connected with a second transmission wheel, one side of the second transmission wheel is movably installed with a second support block, and one side of the transmission belt is fixedly installed with a movable seat.

[0008] Preferably, the main body is installed with a support plate, a plurality of universal wheels are fixedly installed on the bottom of the support plate, a plurality of support rods are fixedly installed on the top of the support plate, a first insulator is fixedly installed on the top of several of the support rods, and a static contact seat is fixedly installed on the top of several of the first insulators.

[0009] Preferably, two limiting rods are fixedly mounted on one side of the first support block, a movable seat is movably mounted through the two limiting rods, and a second support block is fixedly mounted on the other side of the two limiting rods.

[0010] Preferably, a second insulator is fixedly mounted on the top of the movable seat, a bearing rod is movably mounted on the top of the second insulator, a movable contact knife is fixedly mounted on one end of the bearing rod, and a static contact seat is clamped on one side of the movable contact knife.

[0011] Preferably, a hydraulic cylinder is hinged on the top of the movable seat, a piston rod is movably mounted on the output end of the hydraulic cylinder, an insulating bottom plate is hinged on the top end of the piston rod, and a bearing rod is passed through and fixedly mounted on the insulating bottom plate.

[0012] Preferably, a protective shell is fixedly installed on one side of the movable seat, a remote control mainboard is fixedly installed in the inner cavity of the protective shell, a camera is fixedly installed on the top of the remote control mainboard, a high-brightness LED light is fixedly installed on one side of the remote control mainboard, and the remote control mainboard is electrically connected to a servo motor and a hydraulic cylinder.

[0013] The utility model is beneficial in that:

[0014] 1. The present invention utilizes a structural design of a movable test device. A servo motor drives a transmission belt to drive a linear displacement of the movable seat. During this movement, the position of the movable contact blade is controlled, thereby enabling docking with different static contact seats. When the movable contact blade is aligned with the static contact seat, the hydraulic cylinder is driven to cause the piston rod at the output end to control the bearing rod through the insulating base plate, causing one end of the bearing rod to move in a circular motion about the connection point of the second insulator, thereby completing docking between the movable contact blade and the static contact seat. This achieves a movable docking function, solves the problem of rewiring, replacement, and adjustment required for the line, and improves adaptability during use.

[0015] 2. The utility model adopts the structural design of the activity test device. Personnel send signals to the remote control mainboard, and the remote control mainboard transmits electrical signals to the hydraulic cylinder and servo motor for remote control. During the overall activity, the on-site image can be projected through the camera, and the high-brightness LED light can be operated for fill light, thereby realizing the remote control function and improving the limitations in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a structural diagram of the active testing device of the utility model;

[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at center A;

[0021] Figure 5 It is a schematic diagram of the main structure of the utility model.

[0022] In the figure: 1. Main body; 2. Movable test device; 11. Support plate; 12. Universal wheel; 13. Support rod; 14. First insulator; 15. Static contact seat; 21. Servo motor; 22. First transmission wheel; 23. Transmission belt; 24. First support block; 25. Second transmission wheel; 26. Second support block; 27. Movable seat; 28. Limit rod; 29. ​​Second insulator; 31. Load-bearing rod; 32. Movable contact knife; 33. Hydraulic cylinder; 34. Piston rod; 35. Insulating bottom plate; 36. Protective shell; 37. Remote control mainboard; 38. Camera; 39. High-brightness LED light. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 5 As shown, a portable DTU simulation test device includes a main body 1 and a movable test device 2. The movable test device 2 is equipped with a servo motor 21. A first transmission wheel 22 is fixedly mounted on the output end of the servo motor 21. A first support block 24 is movably mounted on one side of the first transmission wheel 22. A transmission belt 23 is transmission-connected to the periphery of the first transmission wheel 22. The other side of the transmission belt 23 is transmission-connected to a second transmission wheel 25. A second support block 26 is movably mounted on one side of the second transmission wheel 25. A movable seat 27 is fixedly mounted on one side of the transmission belt 23.

[0025] During operation, the servo motor 21 provides power, and drives the first transmission wheel 22 to rotate. The first transmission wheel 22 and the second transmission wheel 25 cooperate with each other to realize the rotation of the transmission belt 23, which is conducive to adjusting the position of the movable seat 27.

[0026] Furthermore, the main body 1 is installed with a support plate 11, a plurality of universal wheels 12 are fixedly installed on the bottom of the support plate 11, a plurality of support rods 13 are fixedly installed on the top of the support plate 11, a first insulator 14 is fixedly installed on the top of the plurality of support rods 13, and a static contact seat 15 is fixedly installed on the top of the plurality of first insulators 14;

[0027] During operation, the support plate 11 supports the entire structure, which helps to ensure the stability of the entire structure during operation. At the same time, the installation of the universal wheels 12 facilitates the movement of the entire structure.

[0028] Furthermore, two limiting rods 28 are fixedly mounted on one side of the first support block 24. The two limiting rods 28 pass through and are movably mounted with a movable seat 27. The other side of the two limiting rods 28 is fixedly mounted with a second support block 26.

[0029] During operation, the movable seat 27 moves through the rotation of the transmission belt 23, which may cause instability and may cause shaking, resulting in deviation in the docking accuracy. The installation of the limit rod 28 is conducive to limiting the movement of the movable seat 27 and ensuring its stable linear horizontal displacement.

[0030] Furthermore, a second insulator 29 is fixedly mounted on the top of the movable seat 27, a bearing rod 31 is movably mounted on the top of the second insulator 29, a movable contact blade 32 is fixedly mounted on one end of the bearing rod 31, and a static contact seat 15 is clamped on one side of the movable contact blade 32;

[0031] During operation, the second insulator 29 movably mounts the bearing rod 31 , so that the bearing rod 31 can move in a circle with the connection of the second insulator 29 as the axis, thereby completing the docking work between the lines with respect to the static contact seat 15 .

[0032] Furthermore, a hydraulic cylinder 33 is hinged on the top of the movable seat 27, a piston rod 34 is movably mounted on the output end of the hydraulic cylinder 33, an insulating bottom plate 35 is hinged on the top end of the piston rod 34, and a bearing rod 31 is fixedly mounted through the insulating bottom plate 35;

[0033] During operation, the hydraulic cylinder 33 converts hydraulic energy into mechanical energy to drive the piston rod 34 to perform telescopic movement. The insulating bottom plate 35 of the actuator generates a linkage with the bearing rod 31 by fixing it, thereby controlling the circular movement of the bearing rod 31 .

[0034] Furthermore, a protective shell 36 is fixedly mounted on one side of the movable seat 27, a remote control mainboard 37 is fixedly mounted in the inner cavity of the protective shell 36, a camera 38 is fixedly mounted on the top of the remote control mainboard 37, a high-brightness LED light 39 is fixedly mounted on one side of the remote control mainboard 37, and the remote control mainboard 37 is electrically connected to the servo motor 21 and the hydraulic cylinder 33;

[0035] During operation, personnel can remotely control the servo motor 21 and the hydraulic cylinder 33 through the remote control motherboard 37, and cooperate with the camera 38 and the high-brightness LED light 39 to accurately complete the docking work between the dynamic contact knife 32 and the static contact seat 15.

[0036] Working principle: In embodiment 1, the servo motor 21 is driven to rotate the first transmission wheel 22 at the output end. The first transmission wheel 22 cooperates with the second transmission wheel 25 during operation, so that the transmission belt 23 rotates accordingly, and the transmission belt 23 drives the movable seat 27 to perform corresponding linear displacement. The position of the movable contact knife 32 is controlled during the activity, and then docking work is performed for different static contact seats 15. When the movable contact knife 32 is controlled to move to align with the static contact seat 15, the hydraulic cylinder 33 is driven to make the piston rod 34 at the output end telescopic movement, so that one end of the piston rod 34 is linked to the load-bearing rod 31 through the insulating bottom plate 35, so that one end of the load-bearing rod 31 performs circular movement with the connection point of the second insulator 29 as the axis, and when the movable contact knife 32 moves to dock with the static contact seat 15, the drive of the hydraulic cylinder 33 is stopped.

[0037] In the second embodiment, when personnel are not present, remote control can be performed through the remote control mainboard 37. By sending a signal to the remote control mainboard 37, the remote control mainboard 37 drives the hydraulic cylinder 33 and the servo motor 21 by transmitting an electrical signal. During the overall activity, the image of the scene can be projected through the camera 38, and the high-brightness LED light 39 can be operated for fill light, thereby ensuring that the moving contact knife 32 and the static contact seat 15 are perfectly docked.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A portable DTU simulation test device, characterized by: The invention comprises a main body (1) and a movable testing device (2); the movable testing device (2) is installed with a servo motor (21); a first transmission wheel (22) is fixedly installed at the output end of the servo motor (21); a first support block (24) is movably installed on one side of the first transmission wheel (22); a transmission belt (23) is transmission-connected around the first transmission wheel (22); the other side of the transmission belt (23) is transmission-connected with a second transmission wheel (25); a second support block (26) is movably installed on one side of the second transmission wheel (25); and a movable seat (27) is fixedly installed on one side of the transmission belt (23).

2. A portable DTU simulation test device according to claim 1, characterized in that: The main body (1) is installed with a support plate (11), a plurality of universal wheels (12) are fixedly installed on the bottom of the support plate (11), a plurality of support rods (13) are fixedly installed on the top of the support plate (11), a first insulator (14) is fixedly installed on the top of the plurality of support rods (13), and a static contact seat (15) is fixedly installed on the top of the plurality of first insulators (14).

3. The portable DTU simulation test device according to claim 1, characterized in that: Two limiting rods (28) are fixedly mounted on one side of the first support block (24); a movable seat (27) is movably mounted through the two limiting rods (28); and a second support block (26) is fixedly mounted on the other side of the two limiting rods (28).

4. A portable DTU simulation test device according to claim 3, characterized in that: A second insulator (29) is fixedly mounted on the top of the movable seat (27), a bearing rod (31) is movably mounted on the top of the second insulator (29), a movable contact blade (32) is fixedly mounted on one end of the bearing rod (31), and a static contact seat (15) is clamped on one side of the movable contact blade (32).

5. The portable DTU simulation test device according to claim 4, characterized in that: The top of the movable seat (27) is hinged with a hydraulic cylinder (33), the output end of the hydraulic cylinder (33) is movably mounted with a piston rod (34), the top end of the piston rod (34) is hinged with an insulating base plate (35), and the insulating base plate (35) passes through and is fixedly mounted with a bearing rod (31).

6. The portable DTU simulation test device according to claim 5, characterized in that: A protective shell (36) is fixedly mounted on one side of the movable seat (27), a remote control mainboard (37) is fixedly mounted in the inner cavity of the protective shell (36), a camera (38) is fixedly mounted on the top of the remote control mainboard (37), a high-brightness LED light (39) is fixedly mounted on one side of the remote control mainboard (37), and the remote control mainboard (37) is electrically connected to a servo motor (21) and a hydraulic cylinder (33).

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