A transformer rail shifting and transporting device and an operating method thereof

Abstract

The present application relates to the technical field of transformer moving, and discloses a transformer track-changing moving device and an operating method thereof, which comprises a power trolley, the power trolley comprises a bearing trolley plate, four groups of driving wheels which are adaptively installed at the bottom of the bearing trolley plate, four groups of driven wheels which are staggered with the driving wheels and installed at the bottom of the bearing trolley plate, and pneumatic rotating assemblies which are arranged at the two sides of the bottom of the bearing trolley plate and used for adjusting the walking directions of the driving wheels and the driven wheels; the mature PLC control technology is used to realize the integrated operation of machine, electricity and liquid, the intelligent modular integrated large transformer station transfer and displacement scheme can quickly change tracks, and 90% of construction time can be saved compared with the traditional transfer method; the hydraulic motor speed reducer assembly integrates the motor, the speed reducer and the walking wheels into one, greatly reduces the device volume, and enables the mobile equipment to work in a very small space.

Description

Technical Field

[0001] This invention relates to the technical field of transformer relocation, and more particularly to a transformer track-changing relocation device and its operation method. Background Technology

[0002] In recent years, large power plant transformers have generally been large in size and heavy in weight. During installation and maintenance, there is a transfer process from the work site to the maintenance workshop. Due to the large size and heavy weight of the transformers and the limited space in the station, the entire transfer process is quite difficult. Generally, winches are used for external dragging or wheeled transport with self-propelled capability. Both methods have certain drawbacks.

[0003] Currently, most self-propelled wheel sets use a combination of motor and reducer. When a larger output torque is required, multiple transmission gear sets need to be added, which further increases the overall size and limits its use. In addition, the wheel set carrying device lacks the ability to quickly change tracks, and the actual reversing operation is quite complicated. Summary of the Invention

[0004] Given that most existing self-propelled wheel sets use a combination of motor and reducer, and require additional multi-stage transmission gear sets when a larger output torque is needed, the overall size will increase further, limiting its use. Furthermore, the wheel set carrying device lacks the ability to quickly change tracks, and the actual reversing operation is quite complicated, this invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a transformer track-changing and transporting device.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: comprising, wherein:

[0007] The powered trolley includes a support plate, four sets of drive wheels adapted to be installed at the bottom of the support plate, four sets of driven wheels that are staggered with the drive wheels and installed at the bottom of the support plate, and a pneumatic rotating assembly disposed on both sides of the bottom of the support plate for adjusting the traveling direction of the drive wheels and the driven wheels.

[0008] The control mechanism includes a storage cart, an electrical control cabinet fixedly installed on the top of the storage cart, a hydraulic pump station adapted to be installed on the top of the storage cart, and a connecting assembly for connecting the support plate.

[0009] The path guiding mechanism includes several horizontal and vertical rails distributed perpendicularly to each other, and a reversing component disposed at the intersection of the horizontal and vertical rails.

[0010] As a preferred embodiment of the transformer track-changing and transporting device of the present invention, the active wheel set includes a first wheel set frame, a traveling wheel installed on one side of the inner cavity of the first wheel set frame, an auxiliary wheel installed on the other side of the inner cavity of the first wheel set frame, a hydraulic motor reducer assembly adapted to be installed on one side of the outer surface of the traveling wheel, a grating rotary encoder adapted to be installed on the other side of the outer surface of the traveling wheel, a first connecting seat fixedly installed on the upper part of the outer surface of the first wheel set frame, a first bearing connecting rod fixedly connected to the top of the first connecting seat, a first gear plate fixedly sleeved on the outer surface of the end of the first bearing connecting rod, and a first positioning plate fixedly installed on both sides of the bottom of the first wheel set frame.

[0011] As a preferred embodiment of the transformer track-changing and transporting device of the present invention, the driven wheel set includes a second wheel set frame, pulleys symmetrically installed on both sides of the inner cavity of the second wheel set frame, a second connecting seat fixedly installed on the upper part of the outer surface of the second wheel set frame, a second bearing connecting rod fixedly connected to the top of the second connecting seat, a second gear plate fixedly sleeved on the outer surface of the end of the second bearing connecting rod, and a second positioning plate fixedly installed on both sides of the bottom of the second wheel set frame.

[0012] As a preferred embodiment of the transformer track-changing and transporting device of the present invention, the pneumatic rotating assembly is fixedly installed on the double-headed cylinders on both sides of the bottom of the bearing plate, the push plate is fixedly connected to the output ends of the double-headed cylinders, the drive rack is fixedly connected to both ends of the outer surface of the push plate, and the drive gear meshes with the outer surface of the drive rack. The outer surfaces of the first gear plate and the second gear plate are both meshed with the corresponding drive gear.

[0013] As a preferred embodiment of the transformer rail-changing and transporting device of the present invention, the reversing component includes a plurality of short rails placed at the intersection of the horizontal rail and the vertical rail, clamping assemblies disposed on both sides of the middle section of the short rail cavity, positioning assemblies connected to the clamping assemblies, and a support assembly installed at the center of the bottom of the short rail.

[0014] As a preferred embodiment of the transformer rail-changing and moving device of the present invention, the clamping assembly includes spring telescopic cylinders symmetrically fixed on both sides of the middle section of the short rail cavity, a trigger element fixedly connected to the top of the spring telescopic cylinder, an inclined rod hinged to both sides of the outer surface of the trigger element, a vertical plate hinged to the lower end of the inclined rod, and a rubber block fixedly installed on the upper side of the outer surface of the vertical plate.

[0015] As a preferred embodiment of the transformer track-changing and moving device of the present invention, the positioning component includes: a roller rod fixedly installed on the outer surface of the trigger element, a connecting block that slides in contact with the roller rod, a sector gear fixedly connected to the end face of the connecting block, a first rotating rod fixedly disposed on the surface of the sector gear, a small gear disk meshing with the outer ring teeth of the sector gear, a second rotating rod fixedly disposed on the inner wall of the small gear disk, a large gear disk fixedly sleeved on both sides of the outer surface of the second rotating rod, a rack and pinion slide plate meshing with the bottom teeth of the large gear disk, and a limiting block fixedly connected to the outer end of the rack and pinion slide plate.

[0016] As a preferred embodiment of the transformer rail-changing and moving device of the present invention, the supporting component is fixedly installed on the connecting bearing at the center of the bottom of the short rail, the mounting plate adapted to be installed at the bottom of the connecting bearing, and the ball bearing disposed on the upper end of the mounting plate and in contact with the bottom of the short rail.

[0017] As a preferred embodiment of the transformer rail-changing and moving device of the present invention, wherein: the upper spherical part of the triggering element penetrates the top of the short rail, and the end of the rubber block away from the vertical plate penetrates the outer wall of the short rail; the outer end of the limiting block penetrates the end face of the short rail, and the ends of the horizontal rail and the vertical rail near the reversing component are each provided with limiting grooves for use with the limiting block; the positioning assembly also includes a reset spring coil fixedly disposed on the outer surface of the first rotating rod.

[0018] The present invention also provides an operating method.

[0019] This invention provides the following technical solution: an operating method, including the aforementioned transformer rail-changing and transferring device, the method comprising the following steps:

[0020] S1: Use a four-point synchronous lifting system to lift the transformer to a certain height, leaving space for the power trolley to enter;

[0021] S2: Drive the power trolley to move directly under the transformer;

[0022] S3: Then the four-point synchronous lifting cylinders descend, and the transformer is placed smoothly on the platform of the power trolley.

[0023] S4: Next, remove the four-point synchronous lifting system, and start the power trolley through the control mechanism to move the load transformer along the horizontal rail;

[0024] S5: When the trolley moves to the intersection of the horizontal and vertical rails, it stops precisely at the rail change point.

[0025] S6: Controls the activation of the pneumatic rotation assembly, driving the drive wheel set and the driven wheel set to rotate 90 degrees synchronously. At this time, it can synchronously drive the reversing component to rotate as well.

[0026] S7: After the reversal is completed, the intelligent control system continues to start the power trolley, which carries the transformer along the vertical rail.

[0027] The beneficial effects of this invention are as follows: Utilizing mature PLC control technology and hydraulic drive, it achieves integrated operation of mechanical, electrical, and hydraulic systems. The intelligent modular integration of a large transformer station transfer and relocation solution enables rapid track changes, saving 90% of construction time compared to traditional methods. The use of a hydraulic motor and reducer assembly integrates the motor, reducer, and wheels, significantly reducing the device's size and allowing the mobile equipment to operate in minimal space. The pneumatic rotating assembly drives the active and driven wheel sets to rotate, simultaneously rotating and connecting the short rails, completing rapid track changes and improving the efficiency of transformer relocation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 This is a schematic diagram of the overall structure of the power trolley of the present invention.

[0031] Figure 3 This is a schematic diagram showing the installation distribution of the path guidance mechanism of the present invention.

[0032] Figure 4 This is a schematic diagram of the driving wheel assembly and driven wheel assembly of the present invention.

[0033] Figure 5 This is a schematic diagram of the wheel assembly distribution of the power trolley of the present invention before track changing.

[0034] Figure 6 This is a schematic diagram of the wheel set distribution of the power trolley of the present invention after track change.

[0035] Figure 7 This is a comparative schematic diagram of the path guidance mechanism of the present invention before and after track change.

[0036] Figure 8 This is a schematic diagram showing the connection between the reversing component and the cross rail of the present invention.

[0037] Figure 9 This is a schematic diagram of the internal cross-section of the short rail of the present invention.

[0038] Figure 10 This is a schematic diagram of the internal structure of the short rail of the present invention. Detailed Implementation

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0042] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0043] Example 1

[0044] Reference Figures 1-7 The first embodiment of the present invention provides a transformer track-changing and moving device, which includes:

[0045] The power trolley 100 includes a support plate 101, four sets of drive wheel sets 102 adapted to be installed at the bottom of the support plate 101, four sets of driven wheel sets 103 interleaved with the drive wheel sets 102 and installed at the bottom of the support plate 101, and a pneumatic rotating assembly 104 provided on both sides of the bottom of the support plate 101 for adjusting the travel direction of the drive wheel sets 102 and the driven wheel sets 103;

[0046] The control mechanism 200 includes a storage cart 201, an electrical control cabinet 202 fixedly installed on the top of the storage cart 201, a hydraulic pump station 203 adapted to be installed on the top of the storage cart 201, and a connection assembly 204 for connecting the support plate 101.

[0047] The path guiding mechanism 300 includes several horizontal rails 301 and vertical rails 302 that are perpendicularly distributed to each other, and a reversing component 303 disposed at the intersection of the horizontal rails 301 and vertical rails 302.

[0048] Among them, the hydraulic pump is driven by a variable frequency motor to generate fluid force to drive the hydraulic motor reducer assembly 102d. The hydraulic pump station 203 is mainly a hydraulic source device composed of an electric motor, hydraulic pump, oil tank, electric control valve, throttle valve, relief valve, accumulator, etc. It includes a hydraulic source system, control system, safety system, heat dissipation system, cleaning and filtration system, etc. The flow, pressure and flow direction control are designed according to the requirements of the actuator device. It is suitable for various machines where the load device and the hydraulic station are separated. The hydraulic pump is connected to the drive device cylinder or motor with oil pipes, and the hydraulic system can realize various specified actions and purposes.

[0049] The control mechanism 200 is equipped with two control subsystems: lifting and pushing. The lifting and pushing process adopts a multi-point displacement synchronous double-layer ring coupling control strategy, which specifically includes double-layer fuzzy PID control and a ring coupling control strategy between hydraulic cylinders or motors to achieve dual closed-loop control of displacement and pressure. The multi-point displacement synchronous double-layer ring coupling control strategy effectively solves the problems of equipment stability and precision control.

[0050] Specifically, the drive wheel assembly 102 includes a first wheel frame 102a, a travel wheel 102b installed on one side of the inner cavity of the first wheel frame 102a, an auxiliary wheel 102c installed on the other side of the inner cavity of the first wheel frame 102a, a hydraulic motor reducer assembly 102d adapted to be installed on one side of the outer surface of the travel wheel 102b, a grating rotary encoder 102e adapted to be installed on the other side of the outer surface of the travel wheel 102b, a first connecting seat 102f fixedly installed on the upper part of the outer surface of the first wheel frame 102a, a first bearing connecting rod 102g fixedly connected to the top of the first connecting seat 102f, a first gear plate 102h fixedly sleeved on the outer surface of the end of the first bearing connecting rod 102g, and a first positioning plate 102i fixedly installed on both sides of the bottom of the first wheel frame 102a.

[0051] The four independent drive wheel sets 102 are combined to form a four-wheel drive system, and each drive wheel set 102 is individually controlled to achieve controllable and adjustable speed of a single wheel set. The drive wheel sets 102 are equipped with grating rotary encoders 102e to achieve high speed control accuracy. At the same time, the control mechanism 200 enables the four-wheel drive wheel sets to perform closed-loop feedback synchronous control to achieve synchronous walking, which greatly increases the output torque of the walking equipment and improves passability. This design can effectively solve the problem of insufficient obstacle crossing ability or slippage of most wheel sets, resulting in insufficient passability. In addition, the hydraulic individual control of the four-wheel drive can realize differential movement of each wheel set, which can solve the problems of vehicle deviation and rail collision and rail biting caused by asynchrony between wheel sets during the vehicle's movement.

[0052] Furthermore, the driven wheel assembly 103 includes a second wheel frame 103a, pulleys 103b symmetrically installed on both sides of the inner cavity of the second wheel frame 103a, a second connecting seat 103c fixedly installed on the upper part of the outer surface of the second wheel frame 103a, a second bearing connecting rod 103d fixedly connected to the top of the second connecting seat 103c, a second gear plate 103e fixedly sleeved on the outer surface of the rod end of the second bearing connecting rod 103d, and a second positioning plate 103f fixedly installed on both sides of the bottom of the second wheel frame 103a.

[0053] Among them, the center-to-center distance between the travel wheel 102b and the auxiliary wheel 102c in the drive wheel set 102 is exactly the same as the center-to-center distance between the two pulleys 103b in the driven wheel set 103, which is 320mm. The center-to-center distance between the two triggers 303b-2 in the reversing component 303 is also 320mm.

[0054] It should be noted that the present invention designs a power trolley 100 with a total load capacity of 400t. The power trolley 100 has a total of 8 sets of wheels (4 sets of driving wheels 102 and 4 sets of driven wheels 103).

[0055] Furthermore, given that the mass of the load is 400t, the gravity N = 400 × 9.8 × 10 = 3920000N, and the coefficient of friction of the track is μ = 0.03 (refer to the mechanical handbook); to calculate the frictional force f, according to the formula f = μ∙N = 0.03 × 3920000 = 117600N, the on-track frictional force is 117600N.

[0056] The diameter of the travel wheel 102b in the drive wheel assembly 102 is selected as 387mm. According to the torque formula: t=M×F.

[0057] Where: t—torque N·m; M—lever arm m; F—force N.

[0058] The total driving torque required for the power trolley is: t = 387 / 2 * 1000 × 117600 = 22755.6 N∙m2. Driving capacity calculation and correction design are also considered. Furthermore, considering the gaps at the track joints and the risk of the drive wheel set 102 becoming dislodged, the power trolley is driven in a four-wheel drive configuration with two drive wheel sets 102 at the front and two at the rear. Each drive wheel set 102 is driven independently without interference, significantly improving the traveling ability of the power trolley 100. The four drive wheel sets 102 are independently controlled, and the differential speed action of the power trolley 100 during travel is achieved by controlling the input flow rate, thereby correcting the vehicle's deviation and preventing phenomena such as deviation and track wear. The control program includes both automatic and manual operation modes.

[0059] The technical parameters of the selected 102d walking hydraulic motor reducer assembly are as follows:

[0060] Maximum input flow rate: 80 L / min;

[0061] Motor displacement: 53 mL / r;

[0062] Maximum working pressure: 30MPa;

[0063] Gearbox reduction ratio: 45.569;

[0064] Theoretical output torque: 11500 N·m;

[0065] Rotation direction: bidirectional;

[0066] Braking method: hydraulic braking + brake pad braking.

[0067] When the driving pressure is 30MPa, the hydraulic motor output torque of a single drive wheel set 102 is 11500N·m. The total output torque of the four drive wheel sets 102 is 11500×4=46000N·m>22755.6N·m. The safety factor is 46000 / 22755=2.02, which meets the driving force design requirements.

[0068] The travel speed of the 100-speed power trolley can be controlled by changing the speed of the hydraulic pump and the output flow rate. In this solution, the hydraulic pump drive motor is a variable frequency motor, and the maximum speed can be controlled to be 700~1450 r / min.

[0069] In use, the four-point synchronous lifting system is used to lift the transformer T to a certain height, leaving space for the power trolley 100 to enter. The power trolley 100 is driven to move along the horizontal rail 301 directly under the transformer T. Then, the four-point synchronous lifting cylinder descends and places the transformer T smoothly onto the support plate 101. The four-point synchronous lifting system is then removed. The variable frequency motor is started by the control mechanism 200. The variable frequency motor drives the hydraulic pump, which generates fluid force to drive the hydraulic motor reducer assembly 102d. The hydraulic motor reducer assembly 102d drives the traveling wheels 102b, which in turn drive the power trolley 100 carrying the transformer T to move along the horizontal rail 301.

[0070] In summary, the hydraulic motor reducer assembly 102d integrates the motor, reducer, and traveling wheels 102b into one unit, greatly reducing the size of the device and enabling the mobile equipment to operate in a very small space. The cooperation between the power trolley 100 and the control mechanism 200 solves the torque problem during starting and braking. Under the same power conditions, it has the advantages of small size, light weight, compact structure, small motion inertia, fast response speed, convenient operation and control, long service life, and safety and reliability, and can realize stepless speed regulation.

[0071] Example 2

[0072] Reference Figures 5-10 This is the second embodiment of the present invention, which differs from the first embodiment in that it involves a specific track-changing scheme at the intersection of the horizontal and vertical rails.

[0073] Specifically, the pneumatic rotary assembly 104 is fixedly installed on the double-headed cylinder 104a on both sides of the bottom of the carrier plate 101, the push plate 104b is fixedly connected to the output ends of the double-headed cylinder 104a, the drive rack 104c is fixedly connected to both ends of the outer surface of the push plate 104b, and the drive gear 104d meshes with the outer surface of the drive rack 104c. The outer surfaces of the first gear plate 102h and the second gear plate 103e are both meshed with the corresponding drive gear 104d.

[0074] The drive rack 104c is slidably connected to the slide groove at the bottom of 101 via a slider, the drive gear 104d is mounted at the bottom of 101 via a bearing, and the output stroke of the double-headed cylinder 104a is set to drive the first gear plate 102h and the second gear plate 103e to rotate 90 degrees.

[0075] Specifically, the reversing component 303 includes several short rails 303a placed at the intersection of the horizontal rails 301 and the vertical rails 302, clamping components 303b disposed on both sides of the middle section of the inner cavity of the short rails 303a, positioning components 303c connected to the clamping components 303b, and support components 303d installed at the bottom center of the short rails 303a.

[0076] Among them, the short rail 303a is located at the axis where the horizontal rail 301 and the vertical rail 302 intersect, and is installed on the ground through the support component 303d. The height of the short rail 303a after installation is the same as the height of the horizontal rail 301 and the vertical rail 302, which ensures the passability of the wheel set.

[0077] Furthermore, the clamping assembly 303b includes spring telescopic cylinders 303b-1 symmetrically fixed on both sides of the middle section of the inner cavity of the short rail 303a, a trigger 303b-2 fixedly connected to the top of the spring telescopic cylinder 303b-1, a diagonal rod 303b-3 hinged to both sides of the outer surface of the trigger 303b-2, a vertical plate 303b-4 hinged to the lower end of the diagonal rod 303b-3, and a rubber block 303b-5 fixedly installed on one side of the upper end of the outer surface of the vertical plate 303b-4.

[0078] The bottom of the vertical plate 303b-4 is fixedly connected to a sliding rod, which ensures the stability of the movement of the rubber block 303b-5. After the rubber block 303b-5 is fully extended, it can apply pressure to the inner side of the first positioning plate 102i or the second positioning plate 103f, and the friction generated can overcome the resistance generated when the short rail 303a rotates.

[0079] Furthermore, the positioning component 303c includes a roller rod 303c-1 fixedly installed on the outer surface of the trigger 303b-2, a connecting block 303c-2 that slides in contact with the roller rod 303c-1, a sector gear 303c-3 fixedly connected to the end face of the connecting block 303c-2, a first rotating rod 303c-4 fixedly disposed on the surface of the sector gear 303c-3, a small gear disk 303c-5 that meshes with the outer ring teeth of the sector gear 303c-3, a second rotating rod 303c-6 fixedly disposed on the inner wall of the small gear disk 303c-5, a large gear disk 303c-7 fixedly sleeved on both sides of the outer surface of the second rotating rod 303c-6, a rack and pinion slide 303c-8 that meshes with the bottom teeth of the large gear disk 303c-7, and a limiting block 303c-9 fixedly connected to the outer end of the rack and pinion slide 303c-8.

[0080] Among them, the first rotating rod 303c-4 and the second rotating rod 303c-6 are rotatably connected to the inner wall of the short rail 303a; the cooperation of the sector gear 303c-3, the small gear plate 303c-5, the large gear plate 303c-7 and the rack and pinion slide 303c-8 has the function of reversing direction and amplifying stroke, ensuring that the limiting block 303c-9 can be fully inserted into the limiting groove K.

[0081] Specifically, the support component 303d is fixedly installed in the center of the bottom of the short rail 303a, the connecting bearing 303d-1 is adapted to be installed in the bottom of the connecting bearing 303d-1, and the ball bearing 303d-3 is provided on the upper end of the mounting plate 303d-2 and in contact with the bottom of the short rail 303a.

[0082] The mounting plate 303d-2 has mounting holes on its surface, which can be used to fix the reversing component 303 to the ground with screws; the ball bearing 303d-3 can reduce the frictional resistance of the reversing component 303 during the rotation reversing process while ensuring support.

[0083] It should also be noted that the upper spherical part of the trigger 303b-2 penetrates the top of the short rail 303a, and the end of the rubber block 303b-5 away from the vertical plate 303b-4 penetrates the outer wall of the short rail 303a; the outer end of the limiting block 303c-9 penetrates the end face of the short rail 303a, and the ends of the horizontal rail 301 and the vertical rail 302 near the reversing component 303 are both provided with limiting grooves K for use with the limiting block 303c-9; the positioning assembly 303c also includes a reset spring coil 303c-10 fixedly installed on the outer surface of the first rotating rod 303c-4.

[0084] The reset spring coil 303c-10 includes a spring plate and a sleeve. One end of the spring plate is fixed to the first rotating rod 303c-4, and the other end is fixed to the inner wall of the sleeve, which can provide the rotational reset driving force for the sector gear 303c-3.

[0085] In use, the four-point synchronous lifting system is used to lift the transformer T to a certain height, leaving space for the power trolley 100 to enter. The power trolley 100 is driven to move along the horizontal rail 301 directly under the transformer T. Then, the four-point synchronous lifting cylinders descend, placing the transformer T smoothly onto the support plate 101. The four-point synchronous lifting system is then removed. The variable frequency motor is started by the control mechanism 200. The variable frequency motor drives the hydraulic pump, generating fluid force to drive the hydraulic motor reducer assembly 102d. The hydraulic motor reducer assembly 102d drives the traveling wheels 102b, which in turn drive the power trolley 100 carrying the transformer T to move along the horizontal rail 301.

[0086] Through the monitoring and control of the control mechanism 200, the driving wheel set 102 and the driven wheel set 103 can be driven to the corresponding reversing component 303. The traveling wheel 102b and the auxiliary wheel 102c are exactly above the two triggers 303b-2. The two pulleys 103b are exactly above the corresponding two triggers 303b-2. The triggers 303b-2 are moved downward by the force. The downward movement of the triggers 303b-2 drives the inclined rod 303b-3. The inclined rod 303b-3 pushes the vertical plate 303b-4 to move outward. The vertical plate 303b-4 pushes the rubber block 303b-5 to extend until it contacts the corresponding first positioning plate 102i or second positioning plate 103f.

[0087] The synchronous trigger 303b-2 moves downward, driving the roller rod 303c-1. The roller rod 303c-1 drives the connecting block 301c-2 to rotate downward around the first rotating rod 303c-4. The connecting block 303c-2 drives the sector gear 303c-3 to rotate. The sector gear 303c-3 drives the small gear 303c-5. The small gear 303c-5 drives the second rotating rod 303c-6. The second rotating rod 303c-6 drives the large gear 303c-7 to rotate. The rotation of the large gear 303c-7 drives the rack and pinion slide 303c-8 to move inward. The rack and pinion slide 303c-8 drives the limit block 303c-9 to retract, releasing the limiting effect between the reversing component 303 and the horizontal rail 301 and the vertical rail 302.

[0088] The double-headed cylinder 104a is opened by controlling the output end of the double-headed cylinder 104a to extend and drive the push plate 104b. The push plate 104b drives the drive rack 104c to move outward. The drive rack 104c drives the drive gear 104d to rotate. The drive gear 104d drives the corresponding first gear plate 102h or second gear plate 103e to rotate. The second gear plate 103e and the first gear plate 102h drive the drive wheel set 102 and the driven wheel set 103 to rotate 90 degrees. The contact friction between the rubber block 303b-5 and the first positioning plate 102i and the second positioning plate 103f can synchronously drive the corresponding short rail 303a to rotate.

[0089] After the reversal is completed, the intelligent control system continues to start the power trolley 100. At the moment the power trolley 100 starts, the top pressure of the trigger 303b-2 is released and it extends out. At the same time, the rubber block 303b-5 releases the clamping force with the driving wheel set 102 and the driven wheel set 103. The limit block 303c-9 extends into the limit groove K to ensure the stability of the connection with the horizontal rail 301 and the vertical rail 302. The power trolley 100 carries the transformer T along the vertical rail 302 until it moves to the target maintenance area.

[0090] In summary, the pneumatic rotating assembly 104 can drive the driving wheel set 102 and the driven wheel set 103 to rotate, and simultaneously drive the short rail 303a to rotate and connect, thus completing the rapid rail change action and improving the transportation efficiency of the transformer T.

[0091] Example 3

[0092] Reference Figures 1-10 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an operating method, including a transformer rail-changing and transferring device, the method comprising the following steps:

[0093] S1: Use a four-point synchronous lifting system to lift the transformer to a certain height, leaving space for the power trolley to enter;

[0094] S2: Drive the power trolley to move directly under the transformer;

[0095] S3: Then the four-point synchronous lifting cylinders descend, and the transformer is placed smoothly on the platform of the power trolley.

[0096] S4: Next, remove the four-point synchronous lifting system, and start the power trolley through the control mechanism to move the load transformer along the horizontal rail;

[0097] S5: When the trolley moves to the intersection of the horizontal and vertical rails, it stops precisely at the rail change point.

[0098] S6: Controls the activation of the pneumatic rotation assembly, driving the drive wheel set and the driven wheel set to rotate 90 degrees synchronously. At this time, it can synchronously drive the reversing component to rotate as well.

[0099] S7: After the reversal is completed, the intelligent control system continues to start the power trolley, which carries the transformer along the vertical rail.

[0100] In summary, by using mature PLC control technology and hydraulic drive, a comprehensive integrated operation of mechanical, electrical, and hydraulic systems is achieved. This intelligent, modular integrated large transformer station transfer and relocation solution enables rapid track changes and saves 90% of construction time compared to traditional relocation methods.

[0101] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention) may be omitted.

[0102] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A transformer track-changing and transporting device, characterized in that: include, The power trolley (100) includes a support plate (101), four sets of drive wheels (102) adapted to be installed at the bottom of the support plate (101), four sets of driven wheels (103) interleaved with the drive wheels (102) and installed at the bottom of the support plate (101), and a pneumatic rotating assembly (104) disposed on both sides of the bottom of the support plate (101) for adjusting the walking direction of the drive wheels (102) and the driven wheels (103). The control mechanism (200) includes a storage trolley (201), an electrical control cabinet (202) fixedly installed on the top of the storage trolley (201), a hydraulic pump station (203) adapted to be installed on the top of the storage trolley (201), and a connection assembly (204) for connecting the support plate (101). The path guiding mechanism (300) includes a plurality of horizontal rails (301) and vertical rails (302) that are perpendicularly distributed to each other, and a reversing component (303) disposed at the intersection of the horizontal rails (301) and the vertical rails (302). The active wheel assembly (102) includes a first wheel assembly frame (102a), a walking wheel (102b) installed on one side of the inner cavity of the first wheel assembly frame (102a), an auxiliary wheel (102c) installed on the other side of the inner cavity of the first wheel assembly frame (102a), a hydraulic motor reducer assembly (102d) adapted to be installed on one side of the outer surface of the walking wheel (102b), a grating rotary encoder (102e) adapted to be installed on the other side of the outer surface of the walking wheel (102b), a first connecting seat (102f) fixedly installed on the upper part of the outer surface of the first wheel assembly frame (102a), a first bearing connecting rod (102g) fixedly connected to the top of the first connecting seat (102f), a first gear plate (102h) fixedly sleeved on the outer surface of the rod end of the first bearing connecting rod (102g), and a first positioning plate (102i) fixedly installed on both sides of the bottom of the first wheel assembly frame (102a). The driven wheel assembly (103) includes a second wheel assembly frame (103a), pulleys (103b) symmetrically installed on both sides of the inner cavity of the second wheel assembly frame (103a), a second connecting seat (103c) fixedly installed on the upper part of the outer surface of the second wheel assembly frame (103a), a second bearing connecting rod (103d) fixedly connected to the top of the second connecting seat (103c), a second gear plate (103e) fixedly sleeved on the outer surface of the rod end of the second bearing connecting rod (103d), and a second positioning plate (103f) fixedly installed on both sides of the bottom of the second wheel assembly frame (103a). The pneumatic rotary assembly (104) is fixedly installed on the two sides of the bottom of the support plate (101) with a double-headed cylinder (104a), a push plate (104b) fixedly connected to the two output ends of the double-headed cylinder (104a), a drive rack (104c) fixedly connected to both ends of the outer surface of the push plate (104b), and a drive gear (104d) meshing with the outer surface of the drive rack (104c). The outer surfaces of the first gear plate (102h) and the second gear plate (103e) are both meshed with the corresponding drive gear (104d). The reversing component (303) includes a plurality of short rails (303a) placed at the intersection of the horizontal rail (301) and the vertical rail (302), clamping components (303b) disposed on both sides of the middle section of the inner cavity of the short rail (303a), positioning components (303c) connected to the clamping components (303b), and a support component (303d) installed at the bottom center of the short rail (303a). The clamping assembly (303b) includes spring telescopic cylinders (303b-1) symmetrically fixed on both sides of the middle section of the inner cavity of the short rail (303a), a trigger (303b-2) fixedly connected to the top of the spring telescopic cylinder (303b-1), a diagonal rod (303b-3) hinged to both sides of the outer surface of the trigger (303b-2), a vertical plate (303b-4) hinged to the lower end of the diagonal rod (303b-3), and a rubber block (303b-5) fixedly installed on one side of the upper end of the outer surface of the vertical plate (303b-4). The positioning assembly (303c) includes a roller rod (303c-1) fixedly mounted on the outer surface of the trigger (303b-2), a connecting block (303c-2) slidably contacting the roller rod (303c-1), a sector gear (303c-3) fixedly connected to the end face of the connecting block (303c-2), a first rotating rod (303c-4) fixedly disposed on the surface of the sector gear (303c-3), and a connecting rod (303c-4) connected to the sector gear (303c-2). 3) A small gear disc (303c-5) with outer ring teeth meshing, a second rotating rod (303c-6) fixedly disposed on the inner wall of the small gear disc (303c-5), a large gear disc (303c-7) fixedly sleeved on both sides of the outer surface of the second rotating rod (303c-6), a rack and pinion slide (303c-8) meshing with the bottom teeth of the large gear disc (303c-7), and a limiting block (303c-9) fixedly connected to the outer end of the rack and pinion slide (303c-8).

2. The transformer track-changing and transferring device according to claim 1, characterized in that: The support assembly (303d) is fixedly installed with a connecting bearing (303d-1) at the center of the bottom of the short rail (303a), a mounting plate (303d-2) adapted to be installed at the bottom of the connecting bearing (303d-1), and a ball bearing (303d-3) disposed on the upper end of the mounting plate (303d-2) and in contact with the bottom of the short rail (303a).

3. The transformer track-changing and transporting device according to claim 2, characterized in that: The upper spherical part of the trigger (303b-2) penetrates the top of the short rail (303a), and the end of the rubber block (303b-5) away from the vertical plate (303b-4) penetrates the outer wall of the short rail (303a); the outer end of the limiting block (303c-9) penetrates the end face of the short rail (303a), and the ends of the horizontal rail (301) and the vertical rail (302) near the reversing component (303) are both provided with limiting grooves (K) for use with the limiting block (303c-9); the positioning component (303c) also includes a return spring coil (303c-10) fixedly disposed on the outer surface of the first rotating rod (303c-4).

4. A method of use, characterized in that: The transformer track-changing and transporting device according to any one of claims 1 to 3, wherein the method comprises the following steps: S1: Use a four-point synchronous lifting system to lift the transformer to a certain height, leaving space for the power trolley to enter; S2: Drive the power trolley to move directly under the transformer; S3: Then the four-point synchronous lifting cylinders descend, and the transformer is placed smoothly on the platform of the power trolley. S4: Next, remove the four-point synchronous lifting system, and start the power trolley through the control mechanism to move the load transformer along the horizontal rail; S5: When the trolley moves to the intersection of the horizontal and vertical rails, it stops precisely at the rail change point. S6: Controls the activation of the pneumatic rotation assembly, driving the drive wheel set and the driven wheel set to rotate 90 degrees synchronously. At this time, it can synchronously drive the reversing component to rotate as well. S7: After the reversing is completed, the intelligent control system continues to start the power trolley, which carries the transformer along the vertical rail.

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