Extensible auxiliary disassembly and assembly equipment for generator circuit breaker operating mechanism

Abstract

The invention discloses extendable auxiliary dismounting equipment for a generator circuit breaker operating mechanism, the extendable auxiliary dismounting equipment comprises a main support frame, an extension frame and a rear bracket, the extension frame and the rear bracket are slidably mounted on the main support frame, the main support frame is provided with a sliding groove, the extension frame is mounted in the sliding groove, and the rear bracket is connected with an equipment push-out device. A front bracket is slidably mounted at the end, away from the rear bracket, of the extending frame, rolling wheels and rolling driving devices are mounted on the front bracket and the rear bracket, an omnidirectional driving wheel set is further arranged at the bottom of the main supporting frame, a lifting mechanism is further arranged between the main supporting frame and the omnidirectional driving wheel set, and the lifting mechanism is connected with a lifting driving device. A telescopic front supporting structure is further arranged at the end, away from the rear bracket, of the extending frame. According to the invention, the extension frame slidably mounted on the main support frame and the front support structure at one end of the extension frame are utilized to cross the wire duct to support the generator circuit breaker operating mechanism, so that the labor intensity is reduced, the disassembly and assembly speed is increased, and the disassembly and assembly quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of generator circuit breaker maintenance, and in particular relates to an extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism. Background Art

[0002] In the power system, the generator circuit breaker operating mechanism is crucial to ensure the safe and stable operation of the generator. When the generator output circuit breaker (GCB) operating mechanism and the GIS circuit breaker operating mechanism fail, the staff needs to dismantle and replace them;

[0003] However, in actual disassembly and assembly conditions, the installation positions of GIS circuit breaker operating mechanisms and some types of generator output circuit breakers (GCB) operating mechanisms are at a certain distance from the ground. At the same time, there are a large number of cable ducts in the installation scene that affect the disassembly and assembly of workers. In addition, due to the heavy weight of the circuit breaker operating mechanism itself, the disassembly and assembly process of the operating mechanism is cumbersome, inefficient, high-risk, and labor-intensive, and the disassembly and assembly quality cannot be guaranteed. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide an extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism. By using an extension frame slidably mounted on a main support frame and a front support structure at one end of the extension frame, the generator circuit breaker operating mechanism can be supported across the wire trough, thereby reducing labor intensity, increasing disassembly and assembly speed, and improving disassembly and assembly quality.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A kind of extendable auxiliary disassembly and assembly equipment for generator circuit breaker operating mechanism, comprising a main support frame and an extension frame and a rear bracket slidably mounted on the main support frame, the main support frame having a sliding groove, the extension frame being mounted in the sliding groove, the rear bracket being connected to an equipment pushing device, a front bracket being slidably mounted on an end of the extension frame away from the rear bracket, the extension frame being also connected to an extension drive device, rollers and a rolling drive device being mounted on both the front bracket and the rear bracket, the rolling drive device being connected to the rollers, an omnidirectional drive wheel group being also arranged at the bottom of the main support frame, a lifting mechanism being also arranged between the main support frame and the omnidirectional drive wheel group, the lifting mechanism being connected to the lifting drive device, and a retractable front support structure being also arranged at an end of the extension frame away from the rear bracket.

[0007] In one embodiment, the front support structure includes a cross shaft and a screw connected to the cross shaft, and the screw is connected to an output end of a servo motor.

[0008] In one embodiment, it also includes a control system, which includes a main controller, an information transmission module and a power module, the main controller is electrically connected to the information transmission module and the power module, and the extension drive device, the equipment pushing device, the rolling drive device, the lifting drive device, the front support device, the omnidirectional drive wheel group and the servo motor are all electrically connected to the information transmission module.

[0009] In one embodiment, the lifting mechanism includes a scissor arm, a guide plate and a bottom support plate. The scissor arms are arranged in pairs and are cross-rotatably connected to each other. The guide plate is composed of a fixed plate fixedly installed on the bottom support plate, a lifting plate slidably installed on the fixed plate and fixedly installed on the main support frame, and the fixed plate and the lifting plate are both provided with sliding rails.

[0010] In one embodiment, the two ends of one of the paired scissor arms are rotatably mounted on the main support frame and the slide block of the fixed plate, respectively, and the two ends of the other scissor arms are rotatably mounted on the slide block on the bottom support plate and the lifting plate, respectively. The omnidirectional drive wheel group is mounted on the bottom support plate, and the lifting drive device adopts a servo screw and is mounted on the main support frame, and its nut is fixedly connected to the slide block on the lifting plate in the lifting mechanism.

[0011] In one embodiment, the extension drive device includes an electric push rod, a housing of the electric push rod is fixedly mounted on a main support frame, and a telescopic end of the electric push rod is connected to the extension frame.

[0012] In one embodiment, the equipment ejection device includes a servo screw mounted on the main support frame, and a nut of the servo screw is connected to the rear bracket.

[0013] In one embodiment, the rolling drive device includes a rolling servo motor mounted on the rear bracket, and an output end of the rolling servo motor is coaxially connected to a roller on the rear bracket.

[0014] In one embodiment, it further includes a sensor electrically connected to the main controller of the control system, wherein the sensor is arranged on the generator breaker operating mechanism to express the position and posture of the generator breaker operating mechanism in real time.

[0015] The beneficial effects of the present invention are:

[0016] (1) Through the cooperation of the main support frame, the front support structure and the extension frame, the operating mechanism of the generator circuit breaker can be disassembled and assembled by crossing the wire trough box. The heavy operating mechanism of the generator circuit breaker can be lifted by the lifting mechanism and the lifting drive device. The operating mechanism of the generator circuit breaker can be supported during installation and automatically taken out during disassembly, which effectively reduces the labor intensity, improves the disassembly and assembly speed, and improves the disassembly and assembly quality.

[0017] (2) The distance between the front bracket and the rear bracket is adjusted by manually sliding the front bracket to adapt to the span of different generator circuit breaker operating mechanisms, thereby supporting generator circuit breaker operating mechanisms of various sizes.

[0018] (3) The sensor is fixedly installed on the generator circuit breaker operating mechanism, which expresses the position and posture of the generator circuit breaker operating mechanism in real time through the operating system, and realizes the closed-loop motion control of the alignment of the screw holes and mounting holes of the generator circuit breaker operating mechanism. There is no need for manual control of the alignment, which effectively reduces labor intensity and improves the alignment efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0020] Figure 1 A schematic structural diagram of an embodiment of the present invention is shown;

[0021] Figure 2 Shows a schematic diagram of the structure of the present invention (explosion diagram);

[0022] Figure 3 A schematic diagram showing the structure of the extension frame of the present invention installed on the main support frame;

[0023] Figure 4 A schematic diagram (top view) showing the structure of the extension frame of the present invention installed on the main support frame;

[0024] Figure 5 A schematic diagram (exploded diagram) showing the structure of the extension frame of the present invention installed on the main support frame;

[0025] Figure 6 A schematic diagram showing the assembly structure of the main support frame, the rear bracket, the equipment ejection device, the roller and the rolling drive device of the present invention;

[0026] Figure 7 A schematic diagram showing the assembly structure of the main support frame, the extension frame, the extension drive device and the front support device of the present invention is shown;

[0027] Figure 8A schematic diagram showing the assembly structure of the extension frame, the front bracket, the roller and the front support frame of the present invention is shown;

[0028] Fig. 9 A schematic diagram showing the assembly structure of the lifting mechanism, the lifting drive device and the omnidirectional drive wheel set of the present invention is shown;

[0029] Fig.10 A schematic diagram showing the assembly structure of the lifting mechanism and the lifting drive device of the present invention is shown;

[0030] Fig.11 A schematic diagram showing the structure of the omnidirectional drive wheel set of the present invention is shown;

[0031] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0032] Reference numerals:

[0033] 1-main support frame, 2-extension frame, 3-extension drive device, 4-front bracket, 5-rear bracket, 6-equipment pushing device, 7-roller, 8-rolling drive device, 9-lifting mechanism, 10-lifting drive device, 11-front support device, 12-omnidirectional drive wheel set. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Since the installation positions of GIS circuit breaker operating mechanisms and some types of generator circuit breaker (GCB) operating mechanisms are a certain distance from the ground, there are a large number of cable ducts in the installation scene that affect the disassembly and installation of workers.

[0036] The present invention provides an extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism, comprising a main support frame 1, an extension frame 2, an extension drive device 3, a front bracket 4, a rear bracket 5, an equipment push-out device 6, a roller 7, a rolling drive device 8, a lifting mechanism 9, a lifting drive device 10, a front support device 11 and an omnidirectional drive wheel set 12;

[0037] In this embodiment, if Figure 1-Figure 2 As shown, a set of lifting mechanisms 9 and a set of omnidirectional driving wheel sets 12 are correspondingly provided at the four corners of the main support frame 1;

[0038] Specifically, Figure 9-10 As shown, four sets of lifting mechanisms 9 correspond to two sets of lifting drive devices 10, and each set of lifting drive devices 10 can drive two sets of lifting mechanisms 9;

[0039] The lifting mechanism 9 adopts a scissor lift mechanism, including scissor arms, guide plates and a bottom support plate. The scissor arms are arranged in pairs and cross each other and are connected by pivot rotation. The guide plate is composed of a fixed plate fixedly mounted on the bottom support plate and a lifting plate slidably mounted on the fixed plate and fixedly mounted on the main support frame 1. The fixed plate and the lifting plate are both provided with horizontally arranged slide rails. The two ends of one of the scissor arms are respectively rotatably mounted on the slide rail sliders on the main support frame 1 and the fixed plate, and the two ends of the other scissor arms are respectively rotatably mounted on the slide rail sliders on the bottom support plate and the lifting plate. The omnidirectional drive wheel set 12 is mounted on the bottom support plate.

[0040] The lifting drive device 10 adopts a servo screw and uses a servo motor as a power source, and is provided with two sections of screws and two nuts corresponding to the two sets of lifting mechanisms 9; the screws are installed on the main support frame 1 through bearings, and the nuts on the screws are fixedly connected to the slide rail sliders on the lifting plates in the corresponding lifting mechanisms 9; the two sections of screws are coaxially fixedly connected and connected to the output shaft of the servo motor through a coupling;

[0041] It should be noted that the servo motor drives the two connected lead screws to rotate synchronously, so that the nut drives the slide block on the lifting plate to move, the scissor arms rotate around the pivot, and the scissor arms extend or contract, thereby driving the main support frame 1 to rise and fall.

[0042] Specifically, Fig.11 As shown, the omnidirectional driving wheel set 12 adopts a steering wheel, and each set of steering wheels adopts a dual-motor drive method consisting of an azimuth motor and a roll motor. Through motion control instructions, three degrees of freedom movement in the plane can be achieved, that is, movement in the plane X and Y directions and rotation around the Z axis, as follows:

[0043] When the azimuth motors control the steering to 0°, all the rolling motors are controlled to rotate in the same direction and speed, so that the main support frame 1 can move horizontally;

[0044] When the azimuth motors control the steering to 90°, all the rolling motors are controlled to rotate in the same direction and speed, so that the main support frame 1 can be moved longitudinally;

[0045] When the azimuth motors control the steering direction to α°, all the rolling motors are controlled to rotate in the same direction and speed, so that the main support frame 1 can be moved obliquely, and the angle between the oblique direction and the X-axis is α°;

[0046] When the azimuth motors control the steering to point to the geometric center of the main support frame 1, all the roll motors are controlled to rotate at specific speeds, so that the main support frame 1 can perform a rotational motion around the geometric center of the main support frame 1;

[0047] like Figure 2-Figure 8As shown, both the main support frame 1 and the extension frame 2 are provided with horizontally arranged slide rails; the slide rail on the main support frame 1 is slidably installed with two front and rear sliders, the extension frame 2 is fixedly connected to the slider located in the front, and the rear bracket 5 is fixedly installed on the slider located in the rear, the extension drive device 3 adopts an electric push rod, the electric push rod housing is fixedly installed on the main support frame 1, and its telescopic end is fixedly connected to the extension frame 2, the front bracket 4 is fixedly installed on the slide rail slider of the extension frame 2, and the equipment ejection device 6 adopts a servo screw, which is installed on the main support frame 1, and its nut is fixedly connected to the rear bracket 5;

[0048] The upper end surfaces of the front bracket 4 and the rear bracket 5 are both arc-shaped, and four rollers 7 are rotatably mounted on both. The axes of the four rollers 7 are distributed in an arc shape. The rolling drive device 8 adopts a servo motor and is fixedly mounted on the rear bracket 5. The output end thereof is coaxially fixedly connected with a roller 7 located on the edge of the rear bracket 5.

[0049] The front support device 11 is installed at the front end of the extension frame 2, and adopts a telescopic frame driven by a screw. The servo motor drives the screw to rotate, so that the cross shaft connected to the screw moves along the axial direction of the screw, thereby driving the entire frame to extend and retract. The telescopic frame is extended and landed to support the extension frame 2;

[0050] A handle is fixedly mounted on the main support frame 1;

[0051] This embodiment also includes an operating system, which includes a main controller, an information transmission module and a power module; the main controller is electrically connected to the information transmission module and the power module, and is used to control the operation of the entire multi-axis adaptive auxiliary disassembly and assembly device; the information transmission module is electrically connected to the extension drive device 3, the device push-out device 6, the rolling drive device 8, the lifting drive device 10, the front support device 10 and the omnidirectional drive wheel set 12, and the power module supplies power to other electrical components;

[0052] In one embodiment, the working principle of this embodiment is as follows:

[0053] 1. Dismantle the operating mechanism of the generator circuit breaker

[0054] In the first step, the operator controls the omnidirectional drive wheel set 10 through the operating system to move the main support frame 1 to the location of the generator circuit breaker operating mechanism that needs to be disassembled;

[0055] In the second step, the extension drive device 3 is started, the extension frame 2 moves over the wire trough box toward the generator circuit breaker operating mechanism, and moves to the bottom of the generator circuit breaker operating mechanism, and the front bracket 4 moves with the extension frame 2;

[0056] The third step is to start the equipment pushing device 6, and the rear bracket 5 moves forward on the main support frame 1 to the bottom of the generator circuit breaker operating mechanism, and the operator manually slides the front bracket 4 so that the distance between the front bracket 4 and the rear bracket 5 can adapt to the span of the generator circuit breaker operating mechanism that needs to be disassembled;

[0057] Step 4: Start the lifting drive device 10, the lifting mechanism 9 drives the main support frame 1 to move upward, the rollers 7 on the front bracket 4 and the rear bracket 5 contact the generator circuit breaker operating mechanism, and the main support frame 1 stops moving;

[0058] In the fifth step, the operator disassembles the generator circuit breaker operating mechanism; after the disassembly is completed, the generator circuit breaker operating mechanism falls on the front bracket 4 and the rear bracket 5, and the equipment pushing device 6 is started to drive the rear bracket 5 to move backward to the original position on the main support frame 1, and the front bracket 4 and the disassembled generator circuit breaker operating mechanism move backward accordingly (the front bracket 4 slides relatively backward on the extension frame 2), and then the extension drive device 3 is started to drive the extension frame 2 to move backward to the original position on the main support frame 1 (the front bracket 4 slides relatively forward on the extension frame 2), so as to take out the generator circuit breaker operating mechanism;

[0059] 2. Install the generator circuit breaker operating mechanism

[0060] In the first step, the operator manually slides the front bracket 4 so that the distance between the front bracket 4 and the rear bracket 5 can adapt to the span of the generator circuit breaker operating mechanism to be installed, and then the operator places the generator circuit breaker operating mechanism to be installed on the rollers 7 of the front bracket 4 and the rear bracket 5;

[0061] In the second step, the operator controls the omnidirectional drive wheel set 10 through the operating system to move the main support frame 1 to the installation location of the generator circuit breaker operating mechanism; then the lifting drive device 10 is started, and the lifting mechanism 9 drives the main support frame 1 to move upward, and lifts the connection head of the generator circuit breaker operating mechanism to a height that is roughly flush with the installation location;

[0062] In the third step, the extension drive device 3 is started, and the extension frame 2 is extended toward the installation position (the front bracket 4 moves backward relative to the extension frame 2), and then the front support device 11 is started, and the telescopic frame is extended to the ground to form a stable support structure to support the extension frame 2;

[0063] The fourth step is to start the equipment pushing device 6, and the rear bracket 5 moves forward on the main support frame 1, driving the generator circuit breaker operating mechanism to continuously approach the installation position (the front bracket 4 moves forward relative to the extension frame 2); then start the rolling drive device 8, driving the roller 7 connected thereto to rotate, thereby driving the generator circuit breaker operating mechanism to rotate, so that the screw hole of the generator circuit breaker operating mechanism is aligned with the installation hole;

[0064] Step 5: After the screw hole is aligned with the mounting hole, the equipment pushing device 6 is started again to make the screw hole of the generator circuit breaker operating mechanism dock with the mounting hole; then the operator starts the installation work; after the installation is completed, the lifting drive device 10 is started, the main support frame 1 descends, the generator circuit breaker operating mechanism is separated from the front bracket 4 and the rear bracket 5, and finally the extendable auxiliary disassembly and assembly equipment is withdrawn;

[0065] In one embodiment, a sensor electrically connected to the main controller of the operating system is further included. The sensor adopts an industrial image processing sensor as a terminal positioning and detection unit to assist the screw hole of the generator circuit breaker operating mechanism to align with the mounting hole. When the sensor is actually working, it needs to be fixedly installed on the generator circuit breaker operating mechanism whose posture is adjusted, so as to collect image information of the mounting hole in real time.

[0066] When installing the generator circuit breaker operating mechanism, the sensor is fixedly installed on the center of the generator circuit breaker operating mechanism connector. After the generator circuit breaker operating mechanism is close to the installation location, the sensor will collect image information of the installation hole in real time and transmit the image information to the main controller. The main controller processes the image information and calculates whether the position and posture of the generator circuit breaker operating mechanism to be installed are greater than the alignment error; if it is greater than the alignment error, the main controller transmits an electrical signal to the information transmission module, adjusts the position of the generator circuit breaker operating mechanism to be installed by controlling the extension drive device 3, the equipment pushing device 6, the lifting drive device 10 and the omnidirectional driving wheel group 12, and drives the generator circuit breaker operating mechanism to be installed to rotate around the central axis by controlling the rolling drive device 8, so as to adjust the posture, and then collects the image information again and performs posture calculation until the posture is less than the alignment error, that is, the screw hole on the generator circuit breaker operating mechanism is aligned with the installation hole;

[0067] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0068] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. An extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism, characterized in that: It includes a main support frame, an extension frame and a rear bracket slidably mounted on the main support frame, the main support frame has a sliding groove, the extension frame is mounted in the sliding groove, the rear bracket is connected to an equipment pushing device, a front bracket is slidably mounted on the end of the extension frame away from the rear bracket, the extension frame is also connected to an extension drive device, rollers and a rolling drive device are installed on the front bracket and the rear bracket, the rolling drive device is connected to the rollers, an omnidirectional drive wheel group is also provided at the bottom of the main support frame, a lifting mechanism is also provided between the main support frame and the omnidirectional drive wheel group, the lifting mechanism is connected to the lifting drive device, and a retractable front support structure is also provided on the end of the extension frame away from the rear bracket.

2. The extendable auxiliary disassembly and assembly device for the generator circuit breaker operating mechanism according to claim 1, characterized in that: The front support structure includes a cross shaft and a screw connected to the cross shaft, and the screw is connected to the output end of the servo motor.

3. The extendable auxiliary disassembly and assembly device for the generator circuit breaker operating mechanism according to claim 2, characterized in that: It also includes a control system, which includes a main controller, an information transmission module and a power module. The main controller is electrically connected to the information transmission module and the power module. The extension drive device, the equipment pushing device, the rolling drive device, the lifting drive device, the front support device, the omnidirectional drive wheel set and the servo motor are all electrically connected to the information transmission module.

4. The extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism according to claim 1, characterized in that: The lifting mechanism includes scissor arms, guide plates and a bottom support plate. The scissor arms are arranged in pairs and are cross-rotatably connected to each other. The guide plate is composed of a fixed plate fixedly installed on the bottom support plate, a lifting plate slidably installed on the fixed plate and fixedly installed on the main support frame, and the fixed plate and the lifting plate are both provided with sliding rails.

5. The extendable auxiliary disassembly and assembly device for the generator circuit breaker operating mechanism according to claim 4, characterized in that: The two ends of one of the scissor arms arranged in pairs are respectively rotatably mounted on the main support frame and the slide block of the fixed plate, and the two ends of the other scissor arms are respectively rotatably mounted on the slide block on the bottom support plate and the lifting plate. The omnidirectional drive wheel group is installed on the bottom support plate, and the lifting drive device adopts a servo screw and is installed on the main support frame, and its nut is fixedly connected to the slide block on the lifting plate in the lifting mechanism.

6. The extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism according to claim 1, characterized in that: The extension drive device comprises an electric push rod, a shell of which is fixedly mounted on a main support frame, and a telescopic end of the electric push rod is connected to the extension frame.

7. The extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism according to claim 1, characterized in that: The equipment pushing device comprises a servo screw installed on the main support frame, and a nut of the servo screw is connected to the rear bracket.

8. The extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism according to claim 1, characterized in that: The rolling drive device comprises a rolling servo motor mounted on the rear bracket, and an output end of the rolling servo motor is coaxially connected to a roller on the rear bracket.

9. The extendable auxiliary disassembly and assembly device for a generator circuit breaker operating mechanism according to claim 3, characterized in that: It also includes a sensor electrically connected to the main controller of the control system, and the sensor is arranged on the generator circuit breaker operating mechanism to express the position and posture of the generator circuit breaker operating mechanism in real time.

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