Steering auxiliary device of converter transformer carrying trolley, converter transformer carrying trolley and steering method

Abstract

The invention provides a converter transformer carrying trolley steering auxiliary device, a converter transformer carrying trolley and a steering method, and relates to the technical field of converter station operation and maintaining.The steering auxiliary device comprises a lifting mechanism arranged on the ground and located at the lower end of the gravity center position of a carrying trolley body, and a lifting driving mechanism connected with the lifting mechanism; the lifting end of the lifting mechanism is driven to stretch out and draw back; the rotating mechanism comprises a supporting rod and a rotating disc, the lower end of the supporting rod is fixedly connected with the lifting end above the lifting mechanism, the upper end of the supporting rod is connected with the lower end of the rotating disc, the supporting rod and the rotating disc can rotate relatively, and the upper end of the rotating disc is used for supporting the gravity center position of the carrying trolley body; the rotation driving mechanism is fixedly installed on the rotating disc and used for driving the rotating disc to rotate relative to the supporting rod so that the carrying trolley body can rotate in situ when the carrying trolley body is supported by the lifting mechanism to be separated from the ground. According to the scheme, pivot steering of the converter transformer carrying trolley can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of converter station operation and maintenance, and in particular to a converter transformer carrying trolley steering auxiliary device, a converter transformer carrying trolley and a steering method. Background Art

[0002] During converter station maintenance, abnormalities often necessitate converter transformer replacement, making the transfer of converter transformers a critical step. Previously, a 25-ton crane was commonly used to divert the transport vehicle. This method not only required specialized drivers and per-shift billing, resulting in high costs, but also required preparatory work such as deploying the crane's outriggers, which took at least one to two hours. The lifting and diverting process also required supervisors and multiple safety personnel. This significant manpower investment resulted in very low efficiency.

[0003] To address the above technical issues, those skilled in the art are currently considering installing a circular track and, at the same time, providing vertically intersecting tracks within the circular track, thereby enabling the trolley to change direction by running along the track. Although this method eliminates the need for a crane and is no longer subject to the limitation of the crane boom being unable to be raised or lowered too high, it also reduces the safety risks associated with using a crane to steer the trolley. However, this method requires a significant amount of space within the substation for laying the track, and in some substations, laying the track for steering is not possible due to space limitations, making it less practical. Summary of the Invention

[0004] In view of this, in order to address the above shortcomings, it is necessary to propose a commutation transformer transport trolley steering auxiliary device, a commutation transformer transport trolley and a steering method to achieve on-site steering of the commutation transformer transport trolley.

[0005] In the first aspect, the present invention provides a steering assist device for a converter and a transport trolley, comprising: a lifting mechanism, a rotating mechanism, a rotating drive mechanism and a lifting drive mechanism; the lifting mechanism is used to be set on the ground and is located at the lower end of the center of gravity of the transport trolley body, and the lifting drive mechanism is connected to the lifting mechanism to drive the extension and retraction of the lifting end of the lifting mechanism; the rotating mechanism includes a support rod and a rotating disk, the lower end of the support rod is fixedly connected to the lifting end above the lifting mechanism, the upper end of the support rod is connected to the lower end of the rotating disk, and the support rod and the rotating disk can rotate relative to each other, and the upper end of the rotating disk is used to support the center of gravity of the transport trolley body; the rotating drive mechanism is fixedly installed on the rotating disk, and is used to drive the rotating disk to rotate relative to the support rod, so that the transport trolley body can rotate in place when the lifting mechanism lifts the transport trolley body off the ground.

[0006] Preferably, the lifting mechanism is a hydraulic jack, the lifting drive mechanism is a hydraulic pump, and a hydraulic pipe is connected between the hydraulic jack and the hydraulic pump.

[0007] Preferably, a plurality of universal wheels are provided at the bottom end of the hydraulic pump.

[0008] Preferably, the rotary drive mechanism includes an ear plate, a socket and a hand-held rod; two ear plates are symmetrically arranged on the rotating disk toward the front and rear ends of the transport trolley body, and each ear plate is provided with a socket. One end of the two hand-held rods extends from the front and rear ends of the transport trolley body respectively, and is inserted into the sockets on the front and rear end ear plates. The other end of the two hand-held rods extending out of the transport trolley body is used to be held by the operator to push the rotating disk to rotate relative to the support rod, thereby driving the transport trolley body to rotate in place.

[0009] Preferably, the rotation drive mechanism includes: a housing, a driving motor, a first bevel gear, a second bevel gear, a rotating shaft and a rotating block; the lower end of the housing is fixedly connected to the upper end of the support rod, the first bevel gear, the second bevel gear and the rotating shaft are arranged inside the housing, the driving motor is fixedly installed on the outside of the housing, and the driving end is deep into the interior of the housing and connected with the first bevel gear to drive the first bevel gear to rotate; the first bevel gear is meshed with the second bevel gear, and the second bevel gear is fixedly installed on one end of the rotating shaft, the other end of the rotating shaft is fixedly connected to one side of the rotating block, and the other side of the rotating block is fixedly connected to the lower end of the rotating disk, so that when the driving motor drives the first bevel gear to rotate, the rotating disk is driven to rotate relative to the support rod, thereby driving the carrying trolley body to rotate in place.

[0010] Preferably, the rotary drive mechanism also includes a fixed plate and a limiting column; the fixed plate is fixed on the lifting mechanism, and the four corners of the fixed plate are provided with through limiting holes, the upper ends of the four limiting columns are fixedly connected to the lower ends of the four corners of the shell, and the lower ends of the limiting columns pass through the limiting holes.

[0011] Preferably, the upper end surface of the rotating disk is provided with a first rack-like structure to engage with a second rack-like structure provided at the bottom of the transport trolley body.

[0012] In the second aspect, the present invention provides a converter transformer carrier trolley, comprising a carrier trolley body and a converter transformer carrier trolley steering assist device as described in the first aspect; a second rack-like structure is provided in the area at the center of gravity of the bottom of the carrier trolley body, and the second rack-like structure can be engaged with the first rack-like structure of the converter transformer carrier trolley body steering assist device.

[0013] In a third aspect, the present invention provides a method for steering a commutator-transport vehicle. The method is based on the commutator-transport vehicle steering assist device described in the first aspect, or the commutator-transport vehicle described in the second aspect, and comprises the following steps: Step S1: Assemble the commutation transformer carrier trolley steering assist device according to the connection requirements; Step S2: placing the assembled lifting mechanism at the center of gravity of the lower end of the transport trolley body, and driving the lifting end of the lifting mechanism to rise by the lifting drive mechanism, so that the first rack-like structure on the upper end surface of the rotating disk engages with the second rack-like structure below the transport trolley body; Step S3: further driving the lifting end of the lifting mechanism to rise by the lifting drive mechanism to lift the transport vehicle body off the ground to a preset height; Step S4: driving the rotating disk to rotate relative to the support rod through the rotary drive mechanism, so that the transport trolley body rotates in place; Step S5: When the transport vehicle body rotates to the target direction, it stops rotating; Step S6: The lifting end of the lifting mechanism is driven to be retracted by the lifting drive mechanism, so that the transport trolley is lowered to the ground, and the wheels of the transport trolley body are aligned with the track on the ground, thereby completing the turning of the transport trolley body.

[0014] Preferably, the step S4 specifically includes: From the front and rear ends of the trolley body, one end of the hand-held rod is inserted from the bottom of the trolley body and inserted into the corresponding socket on the ear plate; the other end is held by the operator and pushed in the same direction at the same time to complete the in-situ rotation of the trolley body; or, The driving motor of the rotary drive mechanism is started, and the driving motor controls the rotating disk to rotate relative to the support rod, thereby driving the transport trolley body to rotate in place.

[0015] As can be seen from the above technical solutions, in the embodiment of the present invention, the steering auxiliary device for the converter transformer transport vehicle, the converter transformer transport vehicle, and the steering method provided by the embodiment of the present invention include a lifting mechanism, a rotating mechanism, a rotating drive mechanism, and a lifting drive mechanism. The lifting mechanism is arranged on the bottom surface of the transport vehicle body at the center of gravity position. The lifting drive mechanism is connected to the lifting mechanism and can drive the lifting end of the lifting mechanism to extend and retract. The rotating mechanism includes a support rod and a rotating disk. The lower end of the support rod is fixedly connected to the lifting end above the lifting mechanism. The upper end of the support rod is connected to the lower end of the rotating disk. The support rod and the rotating disk can rotate relative to each other. The upper end of the rotating disk is used to support the center of gravity position of the transport vehicle body. The rotating drive mechanism can drive the rotating disk to rotate relative to the support rod, so that the transport vehicle body can rotate in place when the lifting mechanism lifts the transport vehicle body off the ground. In this way, after the auxiliary device is installed, the lifting end of the lifting mechanism is raised by the lifting drive mechanism, so that the upper end surface of the rotating disk is supported at the center of gravity position of the transport vehicle body. The lifting end of the lifting structure is further driven to rise by the lifting drive mechanism, supporting the carrier body and lifting it off the ground at a preset height. The rotating disk is then driven to rotate relative to the support rod by the rotating drive mechanism, causing the carrier body to rotate in situ. When the carrier body rotates to the target direction, it stops rotating, and the carrier body can be turned in situ. It can be seen that this solution can achieve in-situ turning of the converter carrier body without laying a track specifically for turning, reducing the space occupied by the track in the substation. It is convenient to use even in substations with smaller spaces, and has higher applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a steering assist device for a converter-transformer carrier provided in Example 1 of the present invention.

[0017] Figure 2 Schematic diagram of the rotating mechanism and the rotating drive mechanism provided in Example 1 of the present invention.

[0018] Figure 3 Schematic diagram of the rotary drive mechanism provided in Example 1 of the present invention.

[0019] Figure 4 This is a schematic diagram of a steering assist device for a converter transformer carrier provided in Example 2 of the present invention.

[0020] Figure 5 Schematic diagram of the rotary drive mechanism provided in Example 2 of the present invention.

[0021] Figure 6 Schematic diagram of a commutator-transformer-carrying trolley including the commutator-transformer-carrying trolley steering assist device according to embodiment 1 of the present invention.

[0022] Figure 7Schematic diagram of a commutator-transformer-carrying trolley including the commutator-transformer-carrying trolley steering assist device according to embodiment 2 of the present invention.

[0023] Figure 8 This is a bottom view of the transport vehicle body.

[0024] In the figure: lifting mechanism 10, rotating mechanism 20, support rod 21, rotating disk 22, first rack-like structure 221, lifting drive mechanism 30, hydraulic pipe 31, universal wheel 32, ear plate 41, jack 42, hand-held rod 43, shell 51, drive motor 52, first bevel gear 53, second bevel gear 54, rotating shaft 55, rotating block 56, fixing plate 57, limiting column 58, carrying trolley body 100, second rack-like structure 1001, and commutation carrying trolley steering assist device 200. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work. Example 1

[0026] like Figure 1-3 As shown, the present invention provides a steering assist device 200 for a converter and transformer transport trolley, comprising: a lifting mechanism 10, a rotating mechanism 20, a rotating drive mechanism and a lifting drive mechanism 30; the lifting mechanism 10 is used to be set on the ground and located at the lower end of the center of gravity of the transport trolley body 100, and the lifting drive mechanism 30 is connected to the lifting mechanism 10, and is used to drive the extension and retraction of the lifting end of the lifting mechanism 10; the rotating mechanism 20 includes a support rod 21 and a rotating disk 22, the lower end of the support rod 21 is fixedly connected to the lifting end above the lifting mechanism 10, the upper end of the support rod 21 is connected to the lower end of the rotating disk 22, and the support rod 21 and the rotating disk 22 can rotate relative to each other, and the upper end of the rotating disk 22 is used to be supported at the center of gravity of the transport trolley body 100; the rotating drive mechanism is fixedly installed on the rotating disk 22, and is used to drive the rotating disk 22 to rotate relative to the support rod 21, so that when the lifting mechanism 10 lifts the transport trolley body 100 off the ground, the transport trolley body 100 rotates in place.

[0027] In this embodiment, the lifting mechanism 10 is mainly responsible for the vertical lifting task, the lifting height range can be 0-400mm, and the load should be more than 50 tons. Specifically, the lifting mechanism 10 can be a hydraulic jack, and the lifting drive mechanism 30 is a hydraulic pump. The hydraulic jack and the hydraulic pump are connected by a hydraulic pipe 31 with a self-sealing quick plug. The hydraulic pump can move back and forth in an up and down fan-shaped trajectory through the operating lever to achieve hydraulic energy storage lifting. The movement speed should be able to be accurately controlled at about 1 millisecond per second to ensure a smooth lifting process and avoid the carrier trolley from tipping over.

[0028] In addition, four universal wheels 32 should be provided at the bottom end of the hydraulic pump to facilitate the transport and movement of the hydraulic pump and reduce the workload of the operators.

[0029] The rotating mechanism 20 includes a support rod 21 and a rotating disk 22. The lower end of the support rod 21 is fixedly connected to the lifting end above the lifting mechanism 10, and the upper end of the support rod 21 is connected to the lower end of the rotating disk 22. The support rod 21 and the rotating disk 22 are relatively rotatable. The support rod 21 can be set to different heights as needed, for example, a height of 350 mm and a diameter of 60 mm, or a height of 150 mm and a diameter of 60 mm, depending on the height of the on-site transport trolley body 100. The support rod 21 and the lifting mechanism 10 can be fixedly connected or detachably connected by means of threads or other means.

[0030] The rotating disk 22 can be a hollow cylinder with an open lower end, and a first rack-like structure 221 can be provided on its upper end surface to engage with the second rack-like structure 1001 at the bottom of the carrying trolley body 100. Of course, the second rack-like structure 1001 provided at the bottom of the carrying trolley body 100 should be set with the center of gravity of the carrying trolley body 100 as the center of the circle and cover a certain area outward. In this way, when installing the auxiliary device, the first rack-like structure 221 on the upper surface of the rotating disk 22 can be appropriately adjusted to the position of the auxiliary device according to the inclination of the carrying trolley body 100, that is, the engagement position of the first rack-like structure 221 on the upper surface of the rotating disk 22 on the second rack-like structure 1001 at the lower end of the carrying trolley body 100 is adjusted, thereby ensuring that the carrying trolley body 100 has better balance when it is propped up. In addition, a rack-like structure is provided on the upper surface of the rotating disk 22 and the carrying trolley body 100, and is connected by a toothed engagement. During the rotation of the rotating disk 22, the toothed engagement can better drive the carrying trolley body 100 to rotate, thereby avoiding relative sliding between the rotating disk 22 and the carrying trolley body 100, which affects the rotation effect of the carrying trolley body 100.

[0031] As for the rotary drive mechanism, it may include an ear plate 41, a socket 42 and a hand-held rod 43; two ear plates 41 are symmetrically arranged on the rotating disk 22 toward the front and rear ends of the transport trolley body 100, and each ear plate 41 is provided with a socket 42. One end of the two hand-held rods 43 extends from the front and rear ends of the transport trolley body 100 respectively, and is inserted into the socket 42 on the front and rear end ear plates 41. The other end of the two hand-held rods 43 extends out of the transport trolley body 100 for being held by the operator to push the rotating disk 22 to rotate relative to the support rod 21, thereby driving the transport trolley body 100 to rotate in place.

[0032] In this embodiment, the rotational drive mechanism is manually driven. Specifically, a worker extends a handheld rod 43 from the front and rear ends of the trolley body 100 and inserts it into the sockets 42 on the front and rear end ear plates 41, respectively. Thus, when the trolley body 100 is lifted off the ground by the lifting mechanism 10, the worker can grasp the end of the handheld rod 43 extending from the trolley body 100 and push it in a circular direction, thereby causing the rotating disk 22 to rotate relative to the support rod 21. The trolley body 100 located above the rotating disk 22 is also driven to rotate, thereby achieving in-situ rotation of the trolley body 100. Example 2

[0033] like Figure 4-5 As shown, the present invention provides a steering assist device 200 for a converter and transformer transport trolley, comprising: a lifting mechanism 10, a rotating mechanism 20, a rotating drive mechanism and a lifting drive mechanism 30; the lifting mechanism 10 is used to be set on the ground and located at the lower end of the center of gravity of the transport trolley body 100, and the lifting drive mechanism 30 is connected to the lifting mechanism 10, and is used to drive the extension and retraction of the lifting end of the lifting mechanism 10; the rotating mechanism 20 includes a support rod 21 and a rotating disk 22, the lower end of the support rod 21 is fixedly connected to the lifting end above the lifting mechanism 10, the upper end of the support rod 21 is connected to the lower end of the rotating disk 22, and the support rod 21 and the rotating disk 22 can rotate relative to each other, and the upper end of the rotating disk 22 is used to be supported at the center of gravity of the transport trolley body 100; the rotating drive mechanism is fixedly installed on the rotating disk 22, and is used to drive the rotating disk 22 to rotate relative to the support rod 21, so that when the lifting mechanism 10 lifts the transport trolley body 100 off the ground, the transport trolley body 100 rotates in place.

[0034] Unlike Example 1, the rotary drive mechanism in Example 2 is driven by a motor. Specifically, the rotary drive mechanism includes: a housing 51, a drive motor 52, a first bevel gear 53, a second bevel gear 54, a rotating shaft 55, and a rotating block 56. The lower end of the housing 51 is fixedly connected to the upper end of the support rod 21. The first bevel gear 53, the second bevel gear 54, and the rotating shaft 55 are disposed inside the housing 51. The drive motor 52 is fixedly mounted on the outside of the housing 51, and its driving end extends deep into the housing 51 and is connected to the first bevel gear 53 to drive the first bevel gear 53 to rotate. The first bevel gear 53 is meshed with the second bevel gear 54. The second bevel gear 54 is fixedly mounted on one end of the rotating shaft 55. The other end of the rotating shaft 55 is fixedly connected to one side of the rotating block 56. The other side of the rotating block 56 is fixedly connected to the lower end of the rotating disk 22. When the drive motor 52 drives the first bevel gear 53 to rotate, the rotating disk 22 is driven to rotate relative to the support rod 21, thereby driving the carrying trolley body 100 to rotate in place.

[0035] In this embodiment, the rotation drive mechanism is driven by a motor. That is, after the auxiliary device is installed, the drive motor 52 is started to rotate. The drive motor 52 drives the first bevel gear 53 to rotate, and at the same time drives the second bevel gear 54 meshing with the first bevel gear 53. Then, as the second bevel gear 54 rotates, the rotation plate 22 is driven relative to the support rod 21 via the rotation shaft 55 and the rotation block 56, thereby achieving the in-situ rotation of the transport trolley body 100. The drive motor 52 can be driven by remote control, that is, the operator can control the start and stop and rotation direction of the drive motor 52 by remote control, thereby achieving the in-situ rotation and rotation direction of the transport trolley body 100.

[0036] In addition, in order to prevent the excessive weight of the transport trolley body 100 from causing the drive motor 52 to rotate the first bevel gear 53 and the second bevel gear 54, causing the structure on and inside the shell 51 to rotate while the transport trolley body 100 does not rotate, it is considered to further provide a fixed plate 57 and a limiting column 58 for fixed restriction. Specifically, the fixed plate 57 is fixed to the lifting mechanism 10, and the four corners of the fixed plate 57 are each provided with a through limiting hole. The upper ends of the four limiting columns 58 are fixedly connected to the lower ends of the four corners of the shell 51, and the lower ends of the limiting columns 58 pass through the limiting holes. In this way, by limiting the structure on the shell 51 through the limiting holes on the fixed plate 57, the shell 51 and its internal and installed structures are prevented from rotating, thereby ensuring that the drive mechanism can reliably drive the rotating disk 22 to rotate, and realize reliable in-situ rotation of the transport trolley body 100.

[0037] like Figure 6-8As shown, the present invention also provides a commutation transformer carrier trolley, comprising a carrier trolley body 100 and a commutation transformer carrier trolley steering assist device 200 as described in the above-mentioned embodiment 1 or embodiment 2; a second rack-like structure 1001 is provided in the area at the center of gravity of the bottom of the carrier trolley body 100, and the second rack-like structure 1001 can be engaged with the first rack-like structure 221 of the commutation transformer carrier trolley body steering assist device 200.

[0038] In this embodiment, a second rack-like structure 1001 is provided in the area below the center of gravity of the trolley body 100. This area should be centered on the center of gravity of the trolley and cover a certain area outward. In some cases, when the center of gravity of the trolley body 100 is slightly offset, the operator can adjust the position of the auxiliary device, that is, adjust the position of the meshing of the rack-like structure at the upper end of the rotating disk 22 and the lower end of the trolley body 100, thereby ensuring that the auxiliary device is located at the center of gravity of the trolley body 100 and ensuring the balance of the trolley body 100 when it is supported and rotated. Moreover, the rack-like meshing engagement method is set, and the direction of rotation is just perpendicular to the rack structure, which can have a better torsional state, that is, it can better drive the rotation of the trolley body 100 through the rotation of the rotating disk 22. Moreover, the meshing and locking method can prevent relative sliding between the transport trolley body 100 and the rotating disk 22, which affects the rotation effect of the transport trolley body 100, and also prevent the rotating disk 22 from deviating from the center of gravity of the transport trolley body 100 during rotation.

[0039] In addition, the present invention further provides a method for steering a commutator-transport vehicle. The method is based on the commutator-transport vehicle steering assist device 200 of the first aspect, or the commutator-transport vehicle of the second aspect, and comprises the following steps: Step S1: Assemble the inverter carrier trolley steering assist device 200 according to the connection requirements; Step S2: The assembled lifting mechanism 10 is placed at the center of gravity of the lower end of the transport vehicle body 100, and the lifting end of the lifting mechanism 10 is driven to rise by the lifting drive mechanism 30, so that the first rack-like structure 221 on the upper end surface of the rotating disk 22 engages with the second rack-like structure 1001 below the transport vehicle body 100; Step S3: Further driving the lifting end of the lifting mechanism 10 to rise by the lifting drive mechanism 30 to lift the transport vehicle body 100 off the ground to a preset height; Step S4: driving the rotating disk 22 to rotate relative to the support rod 21 via the rotary drive mechanism, so that the transport vehicle body 100 rotates in place; Step S5: When the transport vehicle body 100 rotates to the target direction, it stops rotating; Step S6: The lifting end of the lifting mechanism 10 is driven to retract by the lifting drive mechanism 30 so that the transport trolley falls to the ground and the wheels of the transport trolley body 100 coincide with the track on the ground, completing the turning of the transport trolley body 100.

[0040] Specifically, step S4 can be implemented in two ways: First, one end of the handle bar 43 can be inserted from the bottom of the trolley body 100 at the front and rear ends of the trolley body 100 and inserted into the corresponding socket 42 on the ear plate 41; the other end is held by the operator and pushed in the same direction at the same time to complete the in-situ rotation of the trolley body 100; Secondly, it is possible to start the driving motor 52 of the rotation driving mechanism, and control the rotating disk 22 to rotate relative to the support rod 21 through the driving motor 52, thereby driving the transport vehicle body 100 to rotate in place.

[0041] When performing the rotation operation of the transport vehicle body 100, it can be specifically achieved through the following process: (1) First, thoroughly inspect all parts of the auxiliary device and check the appearance to ensure that there is no damage, no oil leakage, and no scratches, deformation, etc. on the surface.

[0042] (2) Prepare the self-sealing oil pipes and other tools required for connection, and check their integrity and sealing to ensure that subsequent work proceeds smoothly.

[0043] (3) Select a support rod 21 of appropriate length according to the height of the transport vehicle body 100 and install it.

[0044] (4) Clean the connection ports of the lifting mechanism 10 and the lifting drive mechanism 30 to remove any impurities and oil stains. Use a self-sealing oil pipe to connect the lifting mechanism 10 to the lifting drive mechanism 30. When connecting, ensure that the oil pipe plug is fully inserted into the connection port and confirm that the connection is secure. At the same time, check whether the connection is well sealed. You can observe whether there is any oil leakage by slightly shaking the oil pipe.

[0045] (5) Install the rotating mechanism 20.

[0046] (6) Move the installed auxiliary device to the bottom end of the transport vehicle body 100, while ensuring that the lifting drive mechanism 30 is located outside the transport vehicle.

[0047] (7) Slowly support the trolley body 100 through the lifting mechanism 10, observe whether the trolley body 100 is tilted, and adjust the support position if the trolley is tilted to ensure that the auxiliary device is evenly stressed when supporting the trolley body 100 without tilting or shaking.

[0048] (8) The operator operates the lifting drive mechanism 30, holding the operating lever with both hands and pressing it up and down to manually store energy, so that the lifting mechanism 10 gradually moves upward and supports the transport trolley body 100 to 20 mm from the ground.

[0049] (9) After the transport trolley body 100 is lifted into place, two workers at the front and rear ends of the transport trolley body 100 respectively push the rotating disk 22 to rotate by using the handheld rods 43, or drive the rotating disk 22 to rotate by using the drive motor 52, thereby driving the transport trolley body 100 to rotate.

[0050] (10) After the rotation is completed, the position of the transport trolley body 100 is adjusted so that the wheels of the transport trolley body 100 are realigned with the track.

[0051] (11) After confirming that the wheels are flush with the track, the operator slowly operates the lifting drive mechanism 30 to perform the pressure relief operation; the pressure relief process should be smooth and slow, and the descent of the transport trolley should be closely monitored until the transport trolley body 100 completely falls on the track, completing the in-situ turning work of the transport trolley body 100.

[0052] This demonstrates that the converter transformer trolley rotation scheme provided by this solution significantly saves time and improves efficiency compared to crane-driven operations. It also effectively reduces the risks associated with temporary power operations and large-scale lifting operations, ensuring the safety of on-site workers. Furthermore, this solution also eliminates the need for track laying for steering operations, requiring less space for the trolley's steering. Furthermore, this solution requires only one or two people to complete tasks that would otherwise require large machinery or multiple personnel, reducing equipment investment and labor costs, resulting in excellent economic benefits.

[0053] The modules or units in the apparatus of the embodiments of the present invention may be combined, divided, or deleted as needed. The above disclosure is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Persons skilled in the art will appreciate that any equivalent variations made by implementing all or part of the processes of the above embodiments in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A steering assist device for a converter vehicle, characterized in that: include: Lifting mechanism, rotating mechanism, rotating drive mechanism and lifting drive mechanism; The lifting mechanism is used to be set on the ground and located at the lower end of the center of gravity of the carrying trolley body. The lifting drive mechanism is connected to the lifting mechanism and is used to drive the extension and retraction of the lifting end of the lifting mechanism; the rotating mechanism includes a support rod and a rotating disk, the lower end of the support rod is fixedly connected to the lifting end above the lifting mechanism, the upper end of the support rod is connected to the lower end of the rotating disk, and the support rod and the rotating disk can rotate relative to each other, and the upper end of the rotating disk is used to be supported at the center of gravity of the carrying trolley body; the rotating drive mechanism is fixedly installed on the rotating disk and is used to drive the rotating disk to rotate relative to the support rod, so that the carrying trolley body can rotate in place when the lifting mechanism lifts the carrying trolley body off the ground.

2. The steering assist device for the converter vehicle according to claim 1, characterized in that: The lifting mechanism is a hydraulic jack, the lifting drive mechanism is a hydraulic pump, and a hydraulic pipe is connected between the hydraulic jack and the hydraulic pump.

3. The steering assist device for the converter vehicle according to claim 2, characterized in that: The bottom end of the hydraulic pump is provided with a plurality of universal wheels.

4. The steering assist device for the converter vehicle according to claim 1, characterized in that: The rotary drive mechanism includes an ear plate, a socket and a hand-held rod; two ear plates are symmetrically arranged on the rotating disk toward the front and rear ends of the transport trolley body, and each ear plate is provided with a socket. One end of the two hand-held rods extends from the front and rear ends of the transport trolley body respectively, and is inserted into the sockets on the front and rear end ear plates. The other end of the two hand-held rods extending out of the transport trolley body is used to be held by the operator to push the rotating disk to rotate relative to the support rod, thereby driving the transport trolley body to rotate in place.

5. The steering assist device for the converter vehicle according to claim 1, characterized in that: The rotation drive mechanism includes: a housing, a driving motor, a first bevel gear, a second bevel gear, a rotating shaft and a rotating block; the lower end of the housing is fixedly connected to the upper end of the support rod, the first bevel gear, the second bevel gear and the rotating shaft are arranged inside the housing, the driving motor is fixedly installed on the outside of the housing, and the driving end is deep into the housing and connected with the first bevel gear to drive the first bevel gear to rotate; the first bevel gear is meshed with the second bevel gear, the second bevel gear is fixedly installed on one end of the rotating shaft, the other end of the rotating shaft is fixedly connected to one side of the rotating block, and the other side of the rotating block is fixedly connected to the lower end of the rotating disk, so that when the driving motor drives the first bevel gear to rotate, the rotating disk is driven to rotate relative to the support rod, thereby driving the carrying trolley body to rotate in place.

6. The steering assist device for the converter vehicle according to claim 5, characterized in that: The rotary drive mechanism also includes a fixed plate and a limiting column; the fixed plate is fixed on the lifting mechanism, and the four corners of the fixed plate are provided with through limiting holes, the upper ends of the four limiting columns are fixedly connected to the lower ends of the four corners of the shell, and the lower ends of the limiting columns pass through the limiting holes.

7. The steering assist device for the converter vehicle according to claim 1, characterized in that: The upper end surface of the rotating disk is provided with a first rack-shaped structure to engage with a second rack-shaped structure provided at the bottom of the transport trolley body.

8. A converter vehicle, characterized in that: It includes a transport trolley body and a steering assist device for the converter transformer transport trolley as described in claims 1-7; a second rack-like structure is provided in the area at the center of gravity of the bottom of the transport trolley body, and the second rack-like structure can be engaged with the first rack-like structure of the steering assist device for the converter transformer transport trolley body.

9. A method for steering a commutation vehicle, characterized in that: The method is implemented based on the commutator-transformer-carrying trolley steering assist device according to claims 1 to 7, or the commutator-transformer-carrying trolley according to claim 8, and comprises the following steps: Step S1: Assemble the commutation transformer carrier trolley steering assist device according to the connection requirements; Step S2: placing the assembled lifting mechanism at the center of gravity of the lower end of the transport trolley body, and driving the lifting end of the lifting mechanism to rise by the lifting drive mechanism, so that the first rack-like structure on the upper end surface of the rotating disk engages with the second rack-like structure below the transport trolley body; Step S3: further driving the lifting end of the lifting mechanism to rise by the lifting drive mechanism to lift the transport vehicle body off the ground to a preset height; Step S4: driving the rotating disk to rotate relative to the support rod through the rotary drive mechanism, so that the transport trolley body rotates in place; Step S5: When the transport vehicle body rotates to the target direction, it stops rotating; Step S6: The lifting end of the lifting mechanism is driven to be retracted by the lifting drive mechanism, so that the transport trolley is lowered to the ground, and the wheels of the transport trolley body are aligned with the track on the ground, thereby completing the turning of the transport trolley body.

10. The method for steering a commutation vehicle according to claim 9, characterized in that: The step S4 specifically includes: From the front and rear ends of the trolley body, one end of the hand-held rod is inserted from the bottom of the trolley body and inserted into the corresponding socket on the ear plate; the other end is held by the operator and pushed in the same direction at the same time to complete the in-situ rotation of the trolley body; or, The driving motor of the rotary drive mechanism is started, and the driving motor controls the rotating disk to rotate relative to the support rod, thereby driving the transport trolley body to rotate in place.

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