Automatic running-in device for operating mechanism of ring main unit

Abstract

The utility model discloses an automatic running-in device for an operating mechanism of a ring main unit, which comprises a transfer trolley, a lifting platform and an automatic running-in device which are mutually combined to play a role, and is high in automation degree, high in universality, stable, reliable, convenient to move, simple in overall structure, capable of switching between automatic test and manual test back and forth, and high in reliability. Even if an angle of a special working environment is encountered, inclination of a target angle can be achieved through cooperation of the speed reducer and the lifting table.

Description

Technical Field

[0001] The utility model relates to the field of ring network cabinet operating mechanisms, in particular to an automatic running-in device for ring network cabinet operating mechanisms. Background Art

[0002] Ring main unit is an electrical device that is a group of high-voltage switchgear installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. Its core part adopts a circuit breaker or a load switch and fuse combination appliance. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in urban residential areas, high-rise buildings, large public buildings, factories and enterprises and other load centers. Ring main units mainly include gas insulated ring main units and solid insulated ring main units. Among them, gas insulated ring main units mainly use SF6 as the insulating medium.

[0003] The running-in of the ring main unit refers to the running-in operation after the ring main unit parts are assembled into a product, under the action of mutual force and friction, to achieve the best match between the parts under its design conditions. The concept of running-in has been a consensus among major switch manufacturers at home and abroad. The running-in test device can be used to realize the factory routine test, running-in test and life test of the ring main unit.

[0004] For example, the Chinese patent with publication number CN115188616A discloses a tooling that uses visual positioning automation to replace manual operating mechanism running-in, which includes an automatic movable base, a workpiece is arranged on the top of the automatic movable base, a control console is arranged on the right side of the automatic movable base, a visual locator is arranged on the left side of the control console, a control processor is arranged on the right side of the control console, a cylinder is arranged on the outer surface of the control console, a fixed block is arranged at the driving end of the cylinder, and a limiting mechanism is arranged inside the fixed block. The present invention realizes the full automation of the manual operating mechanism running-in of the ring network cabinet on the production line, solves the problem of time-consuming and labor-intensive manual operation, and solves the problem that information cannot be collected and recorded during the running-in test. It has a high degree of automation and greatly improves the consistency and reliability of the product.

[0005] The existing manual operating mechanism of the ring main unit lacks a dedicated automatic running-in device, and the running-in test can only be completed by manual operation. The running-in efficiency is low and the control accuracy is poor, which affects the quality inspection of the product. The running-in test is very time-consuming and labor-intensive.

[0006] The comparison document fails to achieve timely transfer and free switching between manual and automatic modes. The overall structure is too complicated and cannot work properly when facing special angles in various environments. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides an automatic running-in device for an operating mechanism of a ring main unit to solve the above problems.

[0008] In order to achieve the above objectives, the utility model is implemented through the following technical solutions.

[0009] An automatic running-in device for a ring network cabinet operating mechanism comprises a transfer vehicle, a lifting platform, and an automatic running-in device. The transfer vehicle is connected to the lifting platform, and the automatic running-in device is connected to the lifting platform. The automatic running-in device comprises a driving device, a control module, a skeleton, an operating handle, a cam, a travel switch, and a transmission gear set. The driving device is fixed to the skeleton, and the control module is connected to the rear of the skeleton. The operating handle is detachably mounted on the cam, and the travel switch is fixed to the skeleton and corresponds to the position of the cam. The transmission gear set is arranged in the skeleton, and one end is connected to the driving device and the other end is connected to the cam. The automatic running-in device has a high degree of automation, high universality, stability, reliability, and convenience in movement. The overall structure is relatively simple, and switching between automatic and manual testing can be achieved. Even when encountering angles in special working environments, the target angle of inclination can be achieved through the cooperation of a reducer and a lifting platform.

[0010] Preferably, the driving device is a motor.

[0011] Preferably, two travel switches are provided, and correspond to the cam positions respectively.

[0012] Preferably, the driving device is electrically connected to the control module.

[0013] Preferably, the travel switch is electrically connected to the control module.

[0014] Preferably, the transfer vehicle includes a vehicle armrest, a vehicle frame, casters, a reducer, a mounting plate, and an operating wheel. The vehicle armrest is fixed above the vehicle frame, the casters are arranged at the bottom of the vehicle frame, the reducer is fixed on the vehicle frame, the mounting plate is connected to the reducer, and the operating wheel is connected to the side of the reducer.

[0015] Preferably, a worm wheel and a worm are provided inside the reducer, and the two are meshed with each other for transmission.

[0016] Preferably, one side of the worm is connected to an operating wheel.

[0017] Preferably, the middle output end of the turbine is connected to a mounting plate.

[0018] Preferably, the lifting platform includes a fixed platform, a screw, a coupling, a base, and a lifting operating wheel. The fixed platform is fixed above the screw. There are two screws, and a base is provided at the lower part. The bases are connected by a coupling, and the lifting operating wheel is connected to the base on one side.

[0019] Compared with the prior art, the utility model discloses an automatic running-in device for the operating mechanism of a ring network cabinet, including a transfer vehicle, a lifting platform, and an automatic running-in device. The three are used in combination with each other to play a role, with a high degree of automation, high universality, stability, reliability and convenience in movement. The overall structure is relatively simple, and it can switch back and forth between automatic and manual testing. Even when encountering special working environment angles, the target angle of inclination can be achieved through the cooperation of the reducer and the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the automatic running-in device for the operating mechanism of the ring main unit of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the transfer vehicle of the utility model;

[0022] Figure 3 This is a structural schematic diagram of the lifting platform of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the automatic running-in device of the utility model;

[0024] Figure 5 This is a schematic diagram of the circuit connection of the utility model;

[0025] Figure 6 This is a structural diagram of state 1 in embodiment 1 of the utility model;

[0026] Figure 7 This is a structural diagram of state 2 in embodiment 1 of the utility model;

[0027] Figure 8 It is a schematic diagram of the structure of the automatic running-in device of the utility model after the manual lever is inserted;

[0028] Fig. 9 This is a schematic diagram of the structure of the automatic running-in device of the utility model;

[0029] Fig.10 It is a structural schematic diagram of the automatic running-in device of the utility model. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] An automatic running-in device for a ring network cabinet operating mechanism comprises a transfer vehicle 1, a lifting platform 2, and an automatic running-in device 3. The transfer vehicle 1 is connected to the lifting platform 2, and the automatic running-in device 3 is connected to the lifting platform 2. The automatic running-in device 3 comprises a driving device 31, a control module 32, a skeleton 33, an operating handle 34, a cam 35, a travel switch 36, and a transmission gear set 37. The driving device 31 is fixed on the skeleton 33, the control module 32 is connected to the rear of the skeleton 33, the operating handle 34 is detachably sleeved on the cam 35, the travel switch 36 is fixed on the skeleton 33, and corresponds to the position of the cam 35. The transmission gear set 37 is arranged in the skeleton 33, and one end is connected to the driving device 31, and the other end is connected to the cam 35. The device 31 is a motor, and two travel switches 36 are provided, which correspond to the positions of the cams 35 respectively. The driving device 31 is electrically connected to the control module 32, and the travel switch 36 is electrically connected to the control module 32. The transfer vehicle 1 includes a vehicle handrail 11, a vehicle frame 12, casters 13, a reducer 14, a mounting plate 15, and an operating wheel 16. The vehicle handrail 11 is fixed above the vehicle frame 12, and the casters 13 are arranged at the bottom of the vehicle frame 12. The reducer 14 is fixed on the vehicle frame 12, and the mounting plate 15 is connected to the reducer 14. The operating wheel 16 is connected to the side of the reducer 14. A worm wheel and a worm are provided inside the reducer 14, and the two are meshed with each other for transmission. One side of the worm is connected to the operating wheel 16, and the output end of the middle part of the turbine is connected to the mounting plate 15.

[0032] The lifting platform 2 includes a fixed platform 21, a screw 22, a coupling 23, a base 24, and a lifting operating wheel 25. The fixed platform 21 is fixed above the screw 22. There are two screws 22, and a base 24 is provided at the lower part. The bases 24 are connected by a coupling 23. The lifting operating wheel 25 is connected to one side of the base 24.

[0033] The transfer vehicle 1 can carry the automatic running-in device 3 to the designated working position, and then adjust the working position to a suitable angle through the cooperation of the reducer 14. The lifting platform 2 controls the specific height, and the actual position can be adjusted according to the actual situation of the staff on site. The operating handle 34, the operating wheel 16, and the lifting operating wheel 25 can all be manually cranked, and can also be replaced by a motor drive. After adjusting the appropriate working position, the automatic running-in device 3 starts to work, and the operating handle 34 is inserted into the ring network cabinet operating mechanism to open and close the ring network cabinet switch. Different operating handles 34 can be replaced to adapt to different operating mechanisms. The cam 3 Reference numeral 5 denotes a limit device, which is fixed on the transmission main shaft of the transmission gear set 37 and rotates with the operating handle 34. After the cam 35 presses the travel switch 36, the driving device 31 will reverse. The control module 32 is electrically connected to the driving device 31 and the travel switch 36 and connected to the control circuit. By adjusting the positions of the two travel switches 36, the forward and reverse rotation angles of the operating handle 34 can be changed. The transmission gear set 37 is used to output the power of the motor to the operating handle 34 through gears. The driving device 31 can also be replaced with a manual mode by inserting a common manual lever into the transmission gear set 37 instead of the driving device 31.

[0034] In addition, the transmission principle between the base 24 and the screw 22 in the lifting platform 2 is the screw 22 transmission, and it is a mature transmission structure available on the market. Here, this structure is only used for up and down lifting transmission, and the structure is not upgraded. Therefore, the specific internal technical features are not described in detail. Similarly, the power supply unit is also a prior art and is not the invention point of this scheme, so it will not be described in detail.

[0035] See Figure 5 :SB1 is the stop button, SB2 is the start button, SQ1 and SQ2 are travel switches, KM1 and KM2 are relays.

[0036] Working order: Press the start button SB → the device rotates counterclockwise → hits the travel switch SQ2 and then starts to rotate clockwise (see Figure 7 State 2) → After hitting the travel switch SQ1, it starts to rotate counterclockwise (see Figure 6 State 1) → The forward and reverse cycles continuously, the travel switches SQ1 and SQ2 are interlocked, and the relays KM1 and KM2 are interlocked, which ensures the safety and reliability of the circuit. In order to express the specific characteristics more clearly, Figure 6 and Figure 7 Marked in Chinese.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic running-in device for a ring main unit operating mechanism, characterized in that: The invention comprises a transfer vehicle (1), a lifting platform (2), and an automatic running-in device (3). The transfer vehicle (1) is connected to the lifting platform (2), and the automatic running-in device (3) is connected to the lifting platform (2). The automatic running-in device (3) comprises a driving device (31), a control module (32), a frame (33), an operating handle (34), a cam (35), a travel switch (36), and a transmission gear set (37). The driving device (31) is fixed to the frame (33), the control module (32) is connected to the rear of the frame (33), the operating handle (34) is detachably sleeved on the cam (35), the travel switch (36) is fixed to the frame (33) and corresponds to the position of the cam (35), and the transmission gear set (37) is arranged in the frame (33), and one end of the driving device (31) is connected to the cam (35), and the other end of the transmission gear set (37) is connected to the cam (35).

2. The automatic running-in device for the ring main unit operating mechanism according to claim 1 is characterized in that: The driving device (31) is a motor.

3. The automatic running-in device for the ring main unit operating mechanism according to claim 1 is characterized in that: Two travel switches (36) are provided, and correspond to the positions of the cams (35) respectively.

4. The automatic running-in device for the ring main unit operating mechanism according to claim 1 is characterized in that: The driving device (31) is electrically connected to the control module (32).

5. The automatic running-in device for the ring main unit operating mechanism according to claim 1 is characterized in that: The travel switch (36) is electrically connected to the control module (32).

6. The automatic running-in device for the ring main unit operating mechanism according to claim 1, characterized in that: The transfer vehicle (1) comprises a vehicle armrest (11), a vehicle frame (12), casters (13), a reducer (14), a mounting plate (15), and an operating wheel (16); the vehicle armrest (11) is fixed above the vehicle frame (12); the casters (13) are arranged at the bottom of the vehicle frame (12); the reducer (14) is fixed on the vehicle frame (12); the mounting plate (15) is connected to the reducer (14); and the operating wheel (16) is connected to the side of the reducer (14).

7. The automatic running-in device for the ring main unit operating mechanism according to claim 6 is characterized in that: The reducer (14) is provided with a worm wheel and a worm inside, and the two are meshed with each other for transmission.

8. The automatic running-in device for the ring main unit operating mechanism according to claim 7 is characterized in that: One side of the worm is connected to an operating wheel (16).

9. The automatic running-in device for the ring main unit operating mechanism according to claim 7 is characterized in that: The middle output end of the worm gear is connected to a mounting plate (15).

10. The automatic running-in device for the ring main unit operating mechanism according to claim 1, characterized in that: The lifting platform (2) comprises a fixed platform (21), a lead screw (22), a coupling (23), a base (24), and a lifting operation wheel (25). The fixed platform (21) is fixed above the lead screw (22). Two lead screws (22) are provided, and a base (24) is provided at the bottom of each lead screw. The bases (24) are connected via a coupling (23). The lifting operation wheel (25) is connected to one side of the base (24).

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