Frame for 1.5 kV direct current circuit breaker

Abstract

The utility model discloses a frame for a 1.5 kV direct-current circuit breaker, and belongs to the technical field of loading and transferring. The frame comprises a frame body, a rolling shaft protective cover is arranged at the bottom of the frame body, wheel covers are fixedly connected to the two sides of the rolling shaft protective cover, the wheel covers are arranged on the two sides of the bottom of an extension table, and a rolling shaft is rotationally connected to the middle of the rolling shaft protective cover; the two sides of the rolling shaft penetrate through the wheel cover, then the outer side of the rolling shaft is fixedly connected with wheels, a speed sensor, a driving assembly and an energy recovery assembly are arranged on the outer side of the rolling shaft, the speed sensor is located on one side of the wheel cover, and the energy recovery assembly is close to the position of the wheel cover on the other side. The driving assembly can stably and efficiently drive the cart to advance or retreat, the stability and safety of the direct current circuit breaker in the transportation process are ensured, through the linkage design of the push-pull rod and the connecting block, a worker can flexibly adjust the driving direction of the cart, and the cart adapts to the complex and changeable transportation environment.

Description

Technical Field

[0001] This application relates to the field of loading and transportation technology, and more particularly to a chassis for a 1.5kV DC circuit breaker. Background Technology

[0002] With the development of the power industry, DC circuit breakers play a crucial role in power systems as key equipment. The safety and efficiency of their transportation directly affect the stable operation and maintenance costs of the power system. Therefore, developing a device capable of efficiently and safely transporting DC circuit breakers has become an urgent need in the industry.

[0003] Traditional transportation equipment is affected by road conditions and load during the transfer of DC circuit breakers, which makes it impossible to guarantee the stability of their operating speed. The internal DC circuit breakers may shake or be damaged during transportation due to speed fluctuations. Therefore, this patent needs to upgrade and modify the existing technology. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a chassis for a 1.5kV DC circuit breaker, which overcomes the deficiencies of existing technologies and aims to solve the problem that traditional transportation equipment is affected by road conditions and load during the transfer of DC circuit breakers, making it impossible to guarantee the stability of their operating speed, and causing the internal DC circuit breaker to shake or be damaged during transportation due to speed fluctuations.

[0005] To achieve the above objectives, this application provides the following technical solution: a chassis for a 1.5kV DC circuit breaker, comprising a chassis, a roller cover at the bottom of the chassis, wheel covers fixedly connected to both sides of the roller cover, the wheel covers being located at both sides of the bottom of an extension platform, a roller rotatably connected to the middle of the roller cover, wheels fixedly connected to the outer sides of the rollers after passing through the wheel covers, a speed sensor, a drive assembly, and an energy recovery assembly respectively provided on the outer side of the rollers, the speed sensor being located on one side of the wheel cover, and the energy recovery assembly being located near the other side of the wheel cover.

[0006] By adopting the above technical solution, the frame is relatively heavy to push during transportation because the DC circuit breaker is stored inside. The frame is driven by a drive assembly to rotate the rollers, which in turn drive the outer wheels to roll, thus driving the frame forward or backward. The speed sensor can monitor the trolley's speed in real time and adjust the output power of the drive assembly according to the speed to maintain the trolley's constant speed. When the frame carrying the DC circuit breaker travels downhill, the energy recovery assembly can recover the kinetic energy of the frame using the downward force, converting the trolley's kinetic energy into electrical energy and storing it. At the same time, it provides braking force to the trolley to help it maintain a constant speed descent. This enables the trolley to maintain a constant speed under different terrain and load conditions.

[0007] As a preferred technical solution of this application, a battery is fixedly connected to the middle position of the bottom of the frame, and a controller is fixedly connected to one end of the bottom. The speed sensor, drive assembly, energy recovery assembly, battery and controller are electrically connected.

[0008] By adopting the above technical solution, the battery provides the necessary electrical energy to the motor, ensuring that the drive component can drive the trolley to operate continuously and stably. The speed sensor measures the wheel speed or overall travel speed of the trolley and sends it to the controller. The controller receives the feedback signal from the speed sensor and adjusts the output power of the drive component according to the preset speed target to maintain the trolley's constant speed. When the trolley speed is lower than the set speed, the controller increases the output power of the drive component; conversely, when the trolley speed is higher than the set speed, the controller decreases the output power of the drive component. At the same time, the controller can automatically adjust the control strategy according to different terrains such as uphill and downhill, ensuring that the trolley always maintains a constant speed. When going downhill, the energy recovery component realizes energy recovery and slowing control simultaneously, ensuring the safety and stability of the trolley when going downhill.

[0009] As a preferred technical solution of this application, one end of the frame is fixedly connected to an extension platform, the extension platform is rotatably connected to a rotating shaft, the rotating shaft passes through the bottom of the extension platform and is rotatably connected to a rotating shaft on the outer side, and the two ends of the outer side of the rotating shaft are rotatably connected to steering wheels.

[0010] By adopting the above technical solution, since the rotating shaft is rotatably connected inside the extension platform, the bottom rotating shaft can be rotated by rotating the rotating shaft, thereby driving the outer directional wheel to rotate. The direction of travel of the trolley can be adjusted by rotating the rotating shaft while the frame is traveling.

[0011] As a preferred technical solution of this application, a connecting block is fixedly connected to the top front end of the rotating shaft, and a push-pull rod is rotatably connected to the top of the connecting block.

[0012] By adopting the above technical solution, since one end of the push-pull rod is rotatably connected to the top of the connecting block, the push-pull rod will rotate around the connection point. When the push-pull rod rotates to a perpendicular angle with the connecting block, it can rotate horizontally. At this time, the push-pull rod will rotate around the connection point between the rotation axis and the extension platform, thereby realizing the adjustment of the trolley's travel direction by rotating the push-pull rod.

[0013] As a preferred technical solution of this application, a connecting block is fixedly connected to the lower part of the push-pull rod, and a spring is fixedly connected to the middle position of the connecting block. The spring is fixedly connected to the rear end position of the top of the rotating shaft.

[0014] By adopting the above technical solution, after the push-pull rod rotates downward around the connection point with the connecting block, the spring's contraction force can drive the push-pull rod back to a vertical state.

[0015] As a preferred technical solution of this application, support blocks are fixedly connected to both sides of the connecting block.

[0016] By adopting the above technical solution, when the push-pull rod is in a vertical state, the bottom of the support block is just against the top of the rotating shaft, thereby preventing the push-pull rod from hitting the frame when it returns to its original position, and thus preventing the push-pull rod from damaging the DC circuit breaker inside the frame.

[0017] As a preferred technical solution of this application, a bracket is fixedly connected to the top of the push-pull rod, a hand handle is fixedly connected to the top of the bracket, and an electric control button is pressed at one end of the bottom of the hand handle.

[0018] By adopting the above technical solution, the handheld lever is designed to facilitate hand-holding and pushing / pulling by staff, and the drive components are controlled by pressing the electronic control button to drive the trolley to move.

[0019] As a preferred technical solution of this application, a support baffle is fixedly connected inside the frame at the top of the battery, and a front plate of the frame is fixedly connected to the frame near the push-pull rod.

[0020] By adopting the above technical solution, the support baffle provides support for the circuit breaker stored at the top, while protecting the battery from being crushed.

[0021] The beneficial effects of this application are:

[0022] In this invention, the drive assembly can stably and efficiently drive the trolley forward or backward, ensuring the stability and safety of the DC circuit breaker during transportation. Through the linkage design of the push-pull rod and the connecting block, the operator can flexibly adjust the trolley's direction of travel to adapt to complex and ever-changing transportation environments. The speed sensor and controller can monitor the trolley's speed in real time and automatically adjust the output power of the drive assembly according to the preset speed target to achieve uniform speed travel of the trolley. This function not only improves transportation efficiency but also reduces potential safety hazards caused by speed fluctuations. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of this application;

[0024] Figure 2 This is a schematic diagram of the bottom view structure of this application;

[0025] Figure 3 This is a side view of the structure of this application;

[0026] Figure 4 This is a cross-sectional structural diagram of the spring location in this application;

[0027] Figure 5 This is a schematic diagram of the top view structure of this application;

[0028] Figure 6 This is a schematic diagram of the internal structure of the supporting baffle in this application.

[0029] In the diagram: 1. Frame; 2. Extension platform; 201. Rotating shaft; 202. Rotating shaft; 203. Connecting block; 204. Steering wheel; 3. Front panel of the frame; 4. Wheel; 401. Roller; 402. Wheel cover; 403. Roller guard; 5. Push-pull rod; 501. Connecting block; 502. Support block; 503. Spring; 504. Bracket; 505. Hand handle; 506. Electronic control button; 6. Speed ​​sensor; 7. Drive assembly; 8. Energy recovery assembly; 9. Battery; 10. Controller; 11. Support baffle. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Example 1: A chassis for a 1.5kV DC circuit breaker includes a chassis 1. A roller cover 403 is provided at the bottom of the chassis 1. Wheel covers 402 are fixedly connected to both sides of the roller cover 403. The wheel covers 402 are located at the bottom sides of the extension platform 2. The roller cover 403 has three sets respectively located at the bottom of the chassis 1. A roller 401 is rotatably connected to the middle of the roller cover 403. Wheels 4 are fixedly connected to the outer sides of the roller 401 after passing through the wheel covers 402. A front panel 3 of the chassis is fixedly connected to one side of the chassis 1, thereby realizing the transport of the 1.5kV DC circuit breaker.

[0032] Example 2: A chassis for a 1.5kV DC circuit breaker includes a chassis 1. A roller cover 403 is located at the bottom of the chassis 1. Wheel covers 402 are fixedly connected to both sides of the roller cover 403. The wheel covers 402 are located on both sides of the bottom of an extension platform 2. Three sets of roller covers 403 are respectively located at the bottom of the chassis 1. A roller 401 is rotatably connected to the middle of the roller cover 403. Wheels 4 are fixedly connected to the outer sides of the rollers 401 after passing through the wheel covers 402. A speed sensor 6, a drive assembly 7, and an energy recovery assembly 8 are respectively located on the outer side of the rollers 401. The speed sensor 6 is located on one side of the wheel cover 402, and the energy recovery assembly 8 is located near the other side of the wheel cover 402. Because the chassis 1... The presence of a DC circuit breaker makes the overall transport and pushing process of the frame 1 quite strenuous. Inside the frame 1, the drive assembly 7 drives the roller 401 to rotate, which in turn drives the outer wheels 4 to roll, thus driving the frame 1 forward or backward. The speed sensor 6 can monitor the travel speed of the cart in real time and adjust the output power of the drive assembly 7 according to the travel speed to maintain the constant speed of the cart. When the frame 1 carrying the DC circuit breaker travels to a downhill section, the energy recovery assembly 8 can recover the kinetic energy of the frame 1 using the downward force, converting the kinetic energy of the cart into electrical energy and storing it. At the same time, it provides braking force to the cart to help it maintain a constant speed descent, thereby enabling the cart to maintain a constant speed under different terrain and load conditions.

[0033] In this embodiment, as Figure 1 - Figure 5As shown, a battery 9 is fixedly connected to the middle of the bottom of the frame 1, and a controller 10 is fixedly connected to one end of the bottom. The speed sensor 6, drive assembly 7, energy recovery assembly 8, battery 9, and controller 10 are electrically connected. The battery 9 provides the necessary power to the motor, ensuring that the drive assembly 7 can drive the trolley to run continuously and stably. The speed sensor 6 measures the wheel speed or overall speed of the trolley and sends it to the controller 10. The controller 10 receives the feedback signal from the speed sensor 6 and adjusts the output power of the drive assembly 7 according to the preset speed target to maintain the trolley's constant speed. When the trolley speed is lower than the set speed, the controller 10 increases the output power of the drive assembly 7; conversely, when the trolley speed is higher than the set speed, the controller 10 decreases the output power of the drive assembly 7. At the same time, the controller 10 can automatically adjust the control strategy according to different terrains such as uphill and downhill to ensure that the trolley always maintains a constant speed. When going downhill, the energy recovery assembly 8 realizes energy recovery and slowing control simultaneously, ensuring the safety and stability of the trolley when going downhill.

[0034] In this embodiment, as Figure 1 - Figure 5 As shown, one end of the frame 1 is fixedly connected to an extension platform 2. A rotating shaft 201 is rotatably connected inside the extension platform 2. The rotating shaft 201 passes through the bottom of the extension platform 2 and is rotatably connected to a rotating shaft 202 on the outer side. Steering wheels 204 are rotatably connected to both ends of the outer side of the rotating shaft 202. Since the rotating shaft 201 is rotatably connected inside the extension platform 2, rotating the rotating shaft 201 can drive the bottom rotating shaft 202 to rotate, thereby driving the outer steering wheels 204 to rotate. When the frame 1 is in motion, the direction of travel of the cart can be adjusted by rotating the rotating shaft 201.

[0035] In this embodiment, as Figure 1 - Figure 5 As shown, a connecting block 203 is fixedly connected to the top front end of the rotating shaft 201. A push-pull rod 5 is rotatably connected to the top of the connecting block 203. Since one end of the push-pull rod 5 is rotatably connected to the top of the connecting block 203, the push-pull rod 5 will rotate around the connection point. When the push-pull rod 5 rotates to a perpendicular angle with the connecting block 203, it can be rotated horizontally. At this time, the push-pull rod 5 will rotate around the connection point between the rotating shaft 201 and the extension platform 2, thereby realizing the adjustment of the trolley's travel direction by rotating the push-pull rod 5.

[0036] In this embodiment, as Figure 1 - Figure 5As shown, a connecting block 501 is fixedly connected to the lower part of the push-pull rod 5, and a spring 503 is fixedly connected to the middle position of the connecting block 501. The spring 503 is fixedly connected to the top rear end position of the rotating shaft 201. After the push-pull rod 5 rotates downward around the connection point with the connecting block 203, the spring 503 can cause its contraction force to drive the push-pull rod 5 to return to the vertical state.

[0037] In this embodiment, as Figure 1 - Figure 5 As shown, support blocks 502 are fixedly connected to both sides of the connecting block 501. When the push-pull rod 5 is in a vertical state, the bottom of the support block 502 just touches the top of the rotating shaft 201, thereby preventing the push-pull rod 5 from hitting the frame 1 when it returns to its original position, thus preventing the push-pull rod 5 from damaging the DC circuit breaker inside the frame 1.

[0038] In this embodiment, as Figure 1 - Figure 5 As shown, a bracket 504 is fixedly connected to the top of the push-pull rod 5, and a hand handle 505 is fixedly connected to the top of the bracket 504. An electric control button 506 is pressed at one end of the bottom of the hand handle 505. The hand handle 505 is designed to facilitate the operator's hand and push-pull operation. Pressing the electric control button 506 controls the operation of the drive assembly 7, thereby driving the trolley to move.

[0039] In this embodiment, as Figure 1 - Figure 5 As shown, a support baffle 11 is fixedly connected inside the frame 1 at the top of the battery 9. A front frame 3 is fixedly connected to the frame 1 near the push-pull rod 5. The support baffle 11 provides support for the circuit breaker stored at the top and protects the battery 9 from being crushed.

[0040] Working principle: After the DC circuit breaker is placed inside the frame 1, the operator holds the hand lever 505 and starts the drive assembly 7 by pressing the electronic control button 506. After receiving the start signal, the controller 10 adjusts the output power of the drive assembly 7 according to the preset speed target. The speed sensor 6 monitors the trolley's speed in real time and sends the data to the controller 10. The controller 10 dynamically adjusts the output power of the drive assembly 7 according to the feedback signal from the speed sensor 6 to keep the trolley moving at a constant speed. If a turn is needed, the operator can rotate the push-pull rod 5 to rotate the connecting block 203, thereby changing the direction of the trolley. When the trolley travels to a downhill section, the energy recovery assembly 8 starts to work, using the kinetic energy of the trolley to recover energy. The recovered electrical energy is stored in the battery 9. At the same time, the energy recovery assembly 8 also provides braking force to help the trolley maintain a constant speed descent, thereby ensuring the stability of the DC circuit breaker during transportation.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A frame for a 1.5 kV DC circuit breaker comprising a frame (1), characterized in that, The bottom position of the frame (1) is provided with a roller guard (403), both sides of which are fixedly connected with a wheel cover (402), which is arranged at the bottom of both sides of the extension table (2), the middle position of the roller guard (403) is rotatably connected with a roller (401), both sides of the roller (401) are fixedly connected with a wheel (4) after penetrating the outer side of the wheel cover (402), the outer side of the roller (401) is respectively provided with a speed sensor (6), a driving assembly (7) and an energy recovery assembly (8), the speed sensor (6) is located at one side of the wheel cover (402), and the energy recovery assembly (8) is close to the other side of the wheel cover (402).

2. A vehicle frame for a 1.5 kV DC circuit breaker according to claim 1, characterized in that, The bottom of the frame (1) is fixedly connected with a battery (9), one end of the bottom is fixedly connected with a controller (10), and the speed sensor (6), the driving assembly (7), the energy recovery assembly (8), the battery (9) and the controller (10) are electrically connected.

3. The vehicle frame for a 1.5 kV DC circuit breaker according to claim 1, characterized by, One end of the frame (1) is fixedly connected with an extension table (2), the inside of the extension table (2) is rotatably connected with a rotating shaft (201), the rotating shaft (201) penetrates the bottom of the extension table (2) and is rotatably connected with a rotating shaft (202) outside the rear end, and the rotating shaft (202) is rotatably connected with a direction wheel (204) at both ends of the outer side.

4. A vehicle frame for a 1.5 kV DC circuit breaker according to claim 3, characterized in that, The top of the rotating shaft (201) is fixedly connected with a connecting block (203), and the top of the connecting block (203) is rotatably connected with a push-pull rod (5).

5. A vehicle frame for a 1.5 kV DC circuit breaker according to claim 4, characterized in that, One side of the push-pull rod (5) is fixedly connected with a connecting block (501), the middle position of the connecting block (501) is fixedly connected with a spring (503), and the spring (503) is fixedly connected to the top of the rear end of the rotating shaft (201).

6. A vehicle frame for a 1.5 kV DC circuit breaker according to claim 5, characterized in that, Both sides of the connecting block (501) are fixedly connected with supporting blocks (502).

7. A vehicle frame for a 1.5 kV DC circuit breaker according to claim 4, characterized in that, The top of the push-pull rod (5) is fixedly connected with a support (504), the top of the support (504) is fixedly connected with a hand-held rod (505), and one end of the bottom of the hand-held rod (505) is provided with an electric control button (506).

8. A vehicle frame for a 1.5 kV DC circuit breaker according to claim 4, characterized in that, The inside of the frame (1) is fixedly connected with a supporting baffle (11) at the top of the battery (9), and the frame (1) is fixedly connected with a frame front plate (3) on one side close to the push-pull rod (5).

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