Electric lifting type circuit breaker trolley carrying device

Abstract

The invention provides an electric lifting type circuit breaker trolley carrying device which comprises a lifting plate, the lifting plate is provided with two vertical sliding rails, the vertical sliding rails are in sliding connection with a supporting arm perpendicular to the lifting plate, the supporting arm is provided with a width adjusting module, the width adjusting module is provided with a first guide rail, and the first guide rail is provided with a second guide rail. The supporting arm vertically moves up and down under the action of an electric control system, the first guide rail transversely moves horizontally under the action of the electric control system, and the electric control system is arranged in the lifting plate. The circuit breaker trolley can be safely and stably descended to the ground, a manual carrying and lifting mode is omitted, and the workload of personnel is relieved while safety is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary equipment for circuit breakers of electrical equipment, in particular to an electric lifting type circuit breaker trolley transporting device. Background Art

[0002] Switchgear is a commonly used electrical equipment in power systems, mainly used for control, protection, measurement and power distribution. Its main working principle is to control and protect the power system by opening and closing switches and distribution protection devices to ensure the normal operation of the power system. Center-mounted switchgear, the full name of which is metal-clad center-mounted removable switchgear, is one of the more common forms of switchgear. For a long time, in the case of installation, maintenance and comprehensive overhaul, the circuit breaker trolley of the center-mounted switchgear usually needs to be transferred from the cabinet to the ground. At present, the landing process of the circuit breaker trolley of the center-mounted switchgear is completed by manual handling. As far as a single substation is concerned, there are a large number of center-mounted switchgears, and the maximum weight of the circuit breaker trolley is more than 200 kilograms. There are great safety hazards in manual handling. This not only consumes a lot of manpower and material resources, but also there is a risk of equipment falling and damage, and injury during the handling process, threatening personnel safety and the safe and stable operation of the power grid. Summary of the invention

[0003] The present invention solves the problem of great potential safety hazards in manual handling, and proposes an electric lifting circuit breaker trolley handling device, which can safely and smoothly lower the circuit breaker trolley to the ground, get rid of the manual handling and lifting mode, ensure safety and reduce the workload of personnel.

[0004] In order to achieve the above objectives, the following technical solutions are proposed: An electric lifting circuit breaker trolley transport device comprises a lifting plate, the lifting plate is provided with two vertical slide rails, the vertical slide rails are slidably connected to a support arm of the vertical lifting plate, the support arm is provided with a width adjustment module, the width adjustment module is provided with a first guide rail, the support arm makes vertical up and down motions under the action of an electric control system, the first guide rail makes horizontal lateral motions under the action of the electric control system, and the electric control system is arranged inside the lifting plate.

[0005] The vertical slide rails of the present invention are arranged symmetrically on the left and right, and the width adjustment modules on the two support arms can adjust the width of the first guide rail to meet the circuit breaker trolleys with different width requirements, and the scope of use is wider. At the same time, the first guide rail is modularly designed and designed according to the switch cabinet models of different manufacturers. It can carry circuit breaker trolleys of different models. The circuit breaker trolley slides above the support arm through the first guide rail, and then the support arm is lowered through the electric control system. The whole process is electrically lifted and lowered, which is fast and safe.

[0006] Preferably, the bottoms of both sides of the lifting plate are provided with horizontal wheel seats, and a plurality of load-bearing universal wheels are provided below the horizontal wheel seats. The invention is equipped with heavy-load universal wheels, which are firm and flexible.

[0007] Preferably, a guide ramp is slidably connected between the horizontal wheel seats on both sides. The purpose of configuring the guide ramp in the present invention is to guide the circuit breaker trolley after it descends so that it can slide to the ground.

[0008] Preferably, a telescopic guide rail is embedded in the support arm. The telescopic guide rail is configured in the present invention to guide the circuit breaker trolley after it is lowered so that it can slide to the ground.

[0009] Preferably, a handle is provided on the top of the rear side of the lifting plate. The purpose of configuring the handle in the present invention is to facilitate the user to grab and move the lifting plate, so that the first guide rail on the support arm can quickly and seamlessly connect with the cabinet, making the circuit breaker smooth and easy to push and pull.

[0010] Preferably, the width adjustment module comprises a first screw rod and a second screw rod which are coaxially arranged, and the first screw rod and the second screw rod are both rotatably connected to a screw rod slider, and the screw rod slider is slidably connected between the support arms on both sides.

[0011] The first guide rail of the present invention is fixed on the screw slider, and the screw sliders on both sides always move relative to each other, moving away from or approaching the centroid of the lifting plate at the same speed, so that the first guide rail is always set in the center to avoid the center of gravity shift when carrying the circuit breaker trolley.

[0012] Preferably, a gear set is connected between the first screw rod and the second screw rod, the gear set is driven by a motor, and the motor is electrically connected to the electronic control system.

[0013] Preferably, if the first screw rod and the second screw rod rotate in the same direction, the threads of the first screw rod and the second screw rod are arranged in opposite directions, and if the first screw rod and the second screw rod rotate in opposite directions, the threads of the first screw rod and the second screw rod are arranged in the same direction. The purpose of the present invention is to ensure that the screw sliders on both sides always move relative to each other.

[0014] The beneficial effects of the present invention are as follows: the vertical slide rails of the present invention are arranged symmetrically on the left and right, and the width adjustment modules on the two support arms can adjust the width of the first guide rail so that it can meet the circuit breaker trolleys with different width requirements, and the scope of use is wider. At the same time, the first guide rail is modularly designed and is designed according to the switch cabinet models of different manufacturers. It can carry circuit breaker trolleys of different models. The circuit breaker trolley slides above the support arm through the first guide rail, and then the support arm is lowered through the electric control system. The whole process is electrically lifted and lowered, which is fast and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a simplified diagram of the device structure of Example 1; Figure 2 is a simplified side view of the device of Example 1; Figure 3 is a schematic diagram of the structure of the width adjustment module of Example 1; Figure 4 is a schematic diagram of the gearbox structure of Example 1; Figure 5 is a simplified diagram of the device structure of Example 2; Among them: 1. lifting plate; 2. horizontal wheel seat; 3. vertical slide rail; 4. support arm; 5. first guide rail; 6. guide ramp plate; 7. width adjustment module; 8. load-bearing universal wheel; 9. telescopic guide rail; 10. handle; 11. driving gear set; 12. rack; 71. gear set; 72. motor; 73. reinforcing arm; 74. first screw rod; 75. second screw rod; 76. screw rod slider; 77. bearing; 78. guide rod; 711. first bevel gear; 712. second bevel gear; 713. third bevel gear. DETAILED DESCRIPTION

[0016] Embodiment 1: This embodiment provides an electric lifting circuit breaker trolley transport device, referring to Figure 1 and Figure 3 , including a lifting plate 1, a handle 10 is provided at the top of the rear side of the lifting plate 1, horizontal wheel seats 2 are provided at the bottom of both sides of the lifting plate 1, and a plurality of load-bearing universal wheels 8 are provided below the horizontal wheel seats 2. A guide ramp plate 6 is slidably connected between the horizontal wheel seats 2 on both sides, the lifting plate 1 is provided with two vertical slide rails 3, the vertical slide rails 3 are slidably connected with a support arm 4 of the vertical lifting plate 1, a width adjustment module 7 is provided on the support arm 4, a reinforcing arm 73 is transversely connected between the two support arms 4, a first guide rail 5 is provided on the width adjustment module 7, the support arm 4 makes vertical up and down motion under the action of the electric control system, and the first guide rail 5 makes horizontal lateral motion under the action of the electric control system, and the electric control system is arranged inside the lifting plate 1.

[0017] refer to Figure 2 A driving gear set 11 is provided in the lifting plate 1, and the driving gear set 11 is meshed with a rack 12, and the rack 12 is fixedly connected to both sides of the guide ramp plate 6. The driving gear set 11 is electrically connected to the electronic control system, so the electronic control system controls the guide ramp plate 6 to slide.

[0018] refer to Figure 3The width adjustment module 7 includes a first screw rod 74 and a second screw rod 75 which are coaxially arranged. The first screw rod 74 and the second screw rod 75 are both rotatably connected with a screw slider 76. A guide rod 78 is provided between the support arms 4 on both sides. The screw slider 76 is slidably connected between the support arms 4 on both sides through the guide rod 78. The rotation of the first screw rod 74 and the second screw rod 75 will drive the screw slider 76 to move transversely. A gear set 71 is connected between the first screw rod 74 and the second screw rod 75. The other ends of the first screw rod 74 and the second screw rod 75 are nested in the support arm 4 through a bearing 77. The gear set 71 is driven by a motor 72, and the motor 72 is electrically connected to the electronic control system. The motor 72 is fixed on the reinforcing arm 73.

[0019] If the first screw rod 74 and the second screw rod 75 rotate in the same direction, the threads of the first screw rod 74 and the second screw rod 75 are arranged opposite to each other. If the first screw rod 74 and the second screw rod 75 rotate in opposite directions, the threads of the first screw rod 74 and the second screw rod 75 are arranged in the same direction.

[0020] refer to Figure 4 In this embodiment, the first screw rod 74 and the second screw rod 75 rotate in opposite directions as an illustration. The gear set 71 is provided with a first bevel gear 711, a second bevel gear 712 and a third bevel gear 713. The first bevel gear 711 is connected to the output shaft of the motor 72, the second bevel gear 712 and the third bevel gear 713 are coaxially meshed with the first bevel gear 711, the second bevel gear 712 is connected to the first screw rod 74, and the third bevel gear 713 is connected to the second screw rod 75.

[0021] The purpose of the present invention is to ensure that the screw sliders 76 on both sides always move relative to each other.

[0022] The invention is equipped with heavy-load universal wheels, which are firm and flexible.

[0023] The purpose of configuring the guide ramp plate 6 in the present invention is to guide the circuit breaker trolley after it descends so that it can slide to the ground.

[0024] The purpose of configuring the handle 10 of the present invention is to facilitate the user to grab the movable lifting plate 1, so that the first guide rail 5 on the support arm 4 can be quickly and seamlessly connected to the cabinet, making the circuit breaker smooth and easy to push and pull.

[0025] The first guide rail 5 of the present invention is fixed on the screw slider 76, and the screw sliders 76 on both sides always make relative motion, moving away from or approaching the centroid of the lifting plate 1 at the same speed, so that the first guide rail 5 is always set in the center to avoid the center of gravity shift when carrying the circuit breaker trolley.

[0026] The vertical slide rail 3 of the present invention is arranged symmetrically on the left and right, and the width adjustment modules 7 on the two support arms 4 can adjust the width of the first guide rail 5 to meet the circuit breaker trolleys with different width requirements, and the scope of use is wider. At the same time, the first guide rail 5 is modularly designed and designed according to the switch cabinet models of different manufacturers. It can carry circuit breaker trolleys of different models. The circuit breaker trolley slides above the support arm 4 through the first guide rail 5, and then the support arm 4 is lowered through the electric control system. The whole process is electrically lifted and lowered, which is fast and safe.

[0027] Embodiment 2: This embodiment provides an electric lifting circuit breaker trolley transport device, referring to Figure 5 A telescopic guide rail 9 is nested in the support arm 4. The telescopic guide rail 9 includes three sections of sleeved slide rails, and the last section is provided with an inclination. The telescopic guide rail 9 is configured by manual or electric stretching. The purpose of the present invention to configure the telescopic guide rail 9 is to guide the circuit breaker trolley after it is lowered so that it can slide to the ground.

[0028] This embodiment is an alternative to Embodiment 1, which can reduce the overall weight of the device. Compared with Embodiment 1, the disadvantage is that the structural strength is relatively weaker. Therefore, the preferred solution is Embodiment 1, and Embodiment 2 is only used as a supplement.

Claims

1. An electric lifting circuit breaker trolley transport device, characterized in that: The invention comprises a lifting plate (1), wherein the lifting plate (1) is provided with two vertical slide rails (3), wherein the vertical slide rails (3) are slidably connected to a support arm (4) of the vertical lifting plate (1), wherein a width adjustment module (7) is provided on the support arm (4), wherein the width adjustment module (7) is provided with a first guide rail (5), wherein the support arm (4) performs vertical up and down movement under the action of an electric control system, wherein the first guide rail (5) performs horizontal transverse movement under the action of the electric control system, and wherein the electric control system is arranged inside the lifting plate (1).

2. The electric lifting circuit breaker trolley transport device according to claim 1 is characterized in that: Horizontal wheel seats (2) are provided at the bottom of both sides of the lifting plate (1), and a plurality of load-bearing universal wheels (8) are provided below the horizontal wheel seats (2).

3. The electric lifting circuit breaker trolley transport device according to claim 2 is characterized in that: A guide ramp plate (6) is slidably connected between the horizontal wheel seats (2) on both sides.

4. The electric lifting circuit breaker trolley transport device according to claim 1 or 2, characterized in that: A telescopic guide rail (9) is nested inside the support arm (4).

5. The electric lifting circuit breaker trolley transport device according to claim 1 is characterized in that: A handle (10) is provided on the top of the rear side of the lifting plate (1).

6. The electric lifting circuit breaker trolley transport device according to claim 1 is characterized in that: The width adjustment module (7) comprises a first screw rod (74) and a second screw rod (75) which are coaxially arranged, and the first screw rod (74) and the second screw rod (75) are both rotatably connected to a screw rod slider (76), and the screw rod slider (76) is slidably connected between the support arms (4) on both sides.

7. The electric lifting circuit breaker trolley transport device according to claim 6 is characterized in that: A gear set (71) is connected between the first screw rod (74) and the second screw rod (75); the gear set (71) is driven by a motor (72); and the motor (72) is electrically connected to an electronic control system.

8. The electric lifting circuit breaker trolley transport device according to claim 7 is characterized in that: If the first screw rod (74) and the second screw rod (75) rotate in the same direction, the threads of the first screw rod (74) and the second screw rod (75) are arranged in opposite directions; if the first screw rod (74) and the second screw rod (75) rotate in opposite directions, the threads of the first screw rod (74) and the second screw rod (75) are arranged in the same direction.

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