High-voltage switch handcart transfer platform for power grid guarantee

Abstract

The embodiment of the invention provides a high-voltage switch handcart transfer platform for power grid guarantee, and relates to the technical field of maintenance equipment. A high-voltage switch handcart transfer platform for power grid guarantee comprises a bottom frame, vertical cylinders are fixedly connected to the periphery of the top of the bottom frame, and side covers are fixedly connected to the two sides, close to the vertical cylinders, of the bottom frame; air cylinder barrels are fixedly connected to the two sides, close to the side covers, of the bottom frame, lifting assemblies used in cooperation with the vertical barrels are arranged on the periphery of an inner cavity of the bottom frame, and each lifting assembly comprises a servo motor fixed to the center of the bottom of the bottom frame; a supply assembly is arranged on the side, close to the air cylinder barrel, of the bottom frame, and a traction assembly used in cooperation with the lifting assembly is arranged on the inner side of the supply assembly. On the basis of mechanical and pneumatic dual-drive cooperation and by adopting a mode of combining four-axis stability, height adjustability and traction clamping, the high-voltage switch handcarts with different heights are efficiently transferred, and the sweeping and dust removing functions are also achieved for the high-voltage switch handcarts.

Description

Technical Field

[0001] The present invention belongs to the technical field of maintenance equipment, and in particular relates to a high-voltage switch trolley transfer platform for power grid protection. Background Art

[0002] High-voltage switchgear is a type of switchgear commonly used in medium and high voltage power systems (such as 35kV systems). It is a powerful assistant for power transmission and distribution systems such as industrial and mining enterprises and substations. It is responsible for controlling and protecting switches to ensure the stability and safety of power supply.

[0003] The existing technology (Patent Application No. CN209516430U, titled "A High-Voltage Switch Cart Transportation and Inspection Platform") provides flexible transport, portability, and ease of operation for switch carts. However, during implementation of this technical solution, it was discovered that the existing technology has at least the following problems.

[0004] During the maintenance of electrical equipment, high-voltage switch trolleys need to be transferred. Most of them use a transfer trolley composed of a welded frame, which is then moved by manual steering. Since the high-voltage switch trolleys are located at different heights, transfer trolleys of different heights are often used to match the transfer and maintenance operations of high-voltage switch trolleys of different heights, which is more troublesome. Summary of the Invention

[0005] This application aims to address at least one of the technical issues in the prior art, which is the inability to efficiently transfer high-voltage switchgear trolleys of varying heights using a combination of mechanical and pneumatic dual drive, and the inability to efficiently transfer high-voltage switchgear trolleys using a combination of four-axis stabilization, height adjustment, and pulling and clamping. To this end, this application proposes a high-voltage switchgear trolley transfer platform for power grid security.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0007] A high-voltage switch trolley transfer platform for power grid protection comprises a base frame, vertical cylinders are fixedly connected to the four sides of the top of the base frame, and side covers are fixedly connected to the two sides of the base frame close to the vertical cylinder;

[0008] The two sides of the chassis close to the side covers are fixedly connected with cylinder barrels, and the inner cavity of the chassis is provided with lifting components used in conjunction with the vertical cylinders. The lifting components include a servo motor fixed at the bottom center of the chassis;

[0009] A supply assembly is provided on the side of the base frame close to the cylinder barrel, and the supply assembly includes a three-way valve connected to one side of the cylinder barrel. A pulling assembly used in conjunction with the lifting assembly is provided on the inner side of the supply assembly, and a cleaning assembly is provided on the inner side of the side cover.

[0010] Preferably: the lifting assembly also includes an electric push rod embedded in the output shaft of the servo motor, and the piston rod of the electric push rod is fixedly connected to a large gear plate used in conjunction with the base frame, the large gear plate is meshed with main circular gears on all four sides, and the inner cavity of the main circular gear is embedded with a screw rod that rotates with the vertical cylinder, wherein two of the screw rods have hollow cavities, the screw rods are threaded with screw rod sleeves, and the inner side of the screw rod sleeve is fixedly connected to a connecting piece, and the inner side of the connecting piece is fixedly connected to a transfer seat for transporting high-voltage switch trolleys.

[0011] Preferably: the supply assembly also includes a pair of circular gears arranged on the other two sides of the large gear plate, and the top of the pair of circular gears is fixedly connected to a swing arm through a fixed rod, the swing arm is movably connected to a connecting rod, and the other side of the connecting rod is hinged with a piston that slides with the cylinder barrel, and the exhaust port of the three-way valve is connected to an exhaust pipe, wherein the upper and lower ends of the two screw rods are connected to a connecting end, and the outer ends of the connecting end are rotatably connected to a rotating end and maintain a mutual communication state with each other, and the rotating end located at the bottom is connected to the outer end of the exhaust pipe.

[0012] Preferably: the pulling assembly includes a telescopic tube connected to the outer end of the top rotating end, and the bottom end of the telescopic tube is connected to a horizontal cylinder fixedly matched with the transfer seat, the inner cavity of the horizontal cylinder is embedded with an air bag used in conjunction with the telescopic tube, the air bag is embedded with a return spring, and the inner side of the head end of the air bag is fixedly connected to a skeleton that slides with the horizontal cylinder, a double-headed cylinder is embedded in the skeleton, and the two piston rods of the double-headed cylinder are fixedly connected to a sliding seat that slides with the skeleton, and the outer side of the slide is fixedly connected to a clamping frame that slides with the skeleton.

[0013] Preferably: the cleaning assembly includes a planetary gear rotating on the base frame near the front side of the large toothed disc, and a differential gear is provided on the front side of the planetary gear, the top of the differential gear is fixedly connected to the main bevel gear through a vertical rod, and the top of the main bevel gear is engaged with a secondary bevel gear, and the outer side of the secondary bevel gear is fixedly connected to a synchronous wheel through a cross rod, the rear side of the synchronous wheel is connected to the small toothed disc through a synchronous belt drive, and the four sides of the small toothed disc are engaged with a slave circular gear that rotates with the side cover, and a cleaning head is embedded in the inner cavity of the slave circular gear.

[0014] Preferably, a vertical groove that slides with the connecting piece is provided on the inner side of the vertical cylinder, and a universal ball bearing is movably connected to the bottom of the inner cavity of the transfer seat and adopts an array design.

[0015] Preferably, the front side of the horizontal cylinder is connected to a pressure relief pipe, and an outer end of the pressure relief pipe is provided with an arc chamfer, and an electric pressure relief valve is provided on the pressure relief pipe.

[0016] Preferably, the head end of the airbag is slidably connected to the horizontal cylinder, and the tail end of the airbag is fixed to the pressure relief pipe outside the horizontal cylinder and maintains a communicating state.

[0017] Preferably, weight-reducing grooves are provided around the inner cavity of the clamping frame and are designed in a triangular shape, and insulating pads are fixedly connected around the inner side of the clamping frame.

[0018] Preferably, the four sides of the bottom of the chassis are fixedly connected to Mecanum wheels with a drive motor through brackets, and the rear side of the bottom of the chassis is rotatably connected to a universal wheel.

[0019] The high-voltage switchgear transfer platform for power grid protection of the present invention has the following advantages:

[0020] 1. This high-voltage switch trolley transfer platform for power grid protection is first driven by a servo motor, and the electric push rod adjusts the meshing stroke between the large gear plate and the four sets of main circular gears. The four sets of main circular gears then drive the screw sleeves on the four screw rods to perform synchronous lifting movements. The four sets of screw sleeves drive the transfer seat to perform stable lifting through four sets of connecting parts. The four-axis stable lifting method is adopted to meet the transportation needs of high-voltage switch trolleys of different heights, while also keeping the high-voltage switch trolley under balanced force to prevent it from tipping over during transportation.

[0021] 2. This is a high-voltage switch trolley transfer platform for power grid protection. Secondly, the electric push rod first adjusts the meshing stroke between the large gear plate and the two sets of sub-circular gears, and then the two sets of sub-circular gears drive the two sets of swing arms, connecting rods and pistons to perform reciprocating work in the two sets of cylinder barrels. The pressurized air source generated in the two sets of cylinder barrels is then transmitted from the exhaust pipes on the two sets of three-way valves through the hollow cavities of the two screw rods to the two sets of connecting ends and the rotating ends in sequence, completing the supply and transportation of the pressurized air source.

[0022] 3. This is a high-voltage switch trolley transfer platform for power grid protection. Then, the pressurized air source in the two sets of rotating ends passes through the two telescopic tubes to reach the head ends of the air bags in the two sets of horizontal cylinders. Under the action of the pressure, the two air bags are forced to squeeze and contract backward, and the two return springs are compressed. Then the head ends of the two air bags drive the two sets of clamping frames to pull backward synchronously through the skeleton. Before that, the double-headed cylinder drives the two sets of clamping frames through the two sets of slides to clamp the sides of the high-voltage switch trolley after it is in place. Under the pulling force of the skeleton, the high-voltage switch trolley is forced to leave the cabinet and reach the transfer seat, thereby achieving an efficient transfer effect of the high-voltage switch trolley and providing convenience for the subsequent maintenance of the high-voltage switch trolley.

[0023] 4. This is a high-voltage switch trolley transfer platform for power grid protection. Then, the large gear plate adjusted to the right position drives the differential gear to rotate through the planetary gear. The differential gear successively drives the main bevel gear and the secondary bevel gear to rotate. The secondary bevel gear drives two sets of small gear plates to rotate through two sets of synchronous wheels. The two sets of small gear plates drive two sets of cleaning heads on the circular gears to clean the sides of the high-voltage switch trolley that arrives at the transfer seat, thereby increasing the functional diversity of the transfer device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a front view of the initial state of a high-voltage switch trolley transfer platform structure for power grid protection according to the present invention;

[0026] Figure 2 This is a bottom view of the initial state of a high-voltage switch trolley transfer platform structure for power grid protection according to the present invention;

[0027] Figure 3 This is a rear view of a high-voltage switch trolley transfer platform structure in a lifting state for power grid protection according to the present invention;

[0028] Figure 4 This is a rear view of a high-voltage switch trolley transfer platform structure for power grid protection according to the present invention in a pulled state;

[0029] Figure 5 This is a partial bottom-up cross-sectional view of a high-voltage switch trolley transfer platform structure for power grid protection according to the present invention;

[0030] Figure 6 This is a partial bottom view of a high-voltage switch trolley transfer platform structure for power grid protection according to the present invention;

[0031] Figure 7 A side cross-sectional view of the initial state of the base frame, vertical cylinder and lifting assembly structure of the present invention;

[0032] Figure 8 It is a bottom-view cross-sectional view of the base frame, vertical cylinder and lifting assembly structure of the present invention in the lifting state;

[0033] Figure 9 This is a diagram showing the lifting state of the lifting assembly structure of the present invention;

[0034] Figure 10 It is a bottom view of the cylinder barrel, lifting assembly, supply assembly and pulling assembly structure of the present invention in the initial state;

[0035] Figure 11 It is a cross-sectional view of the cylinder barrel, transfer seat, supply assembly and pulling assembly structure of the present invention in a pulling state;

[0036] Figure 12 A partial top view of the lifting assembly and supply assembly structure of the present invention;

[0037] Figure 13 A partial side view of the supply assembly and pulling assembly structure of the present invention;

[0038] Figure 14 A top cross-sectional view of the pulling assembly structure of the present invention;

[0039] Figure 15 This is a front view of the cylinder barrel, lifting assembly, supply assembly, cleaning assembly and negative pressure assembly structure of the present invention;

[0040] Figure 16 This is a front view of the initial state of the lifting assembly and cleaning assembly structure of the present invention;

[0041] Figure 17 A bottom view of the lifting assembly and cleaning assembly structure of the present invention in a cleaning state;

[0042] Figure 18 A partial bottom view of the lifting assembly and cleaning assembly structure of the present invention in a cleaning state;

[0043] Figure 19 A side view of the cylinder barrel, lifting assembly, supply assembly, cleaning assembly and negative pressure assembly structure of the present invention;

[0044] Figure 20 A side cross-sectional view of the cylinder barrel, lifting assembly, supply assembly, cleaning assembly and negative pressure assembly structure of the present invention;

[0045] Figure 21 It is a partial cross-sectional exploded view of the cylinder barrel, supply assembly, cleaning assembly and negative pressure assembly structure of the present invention;

[0046] Figure 22 This is a top-down cross-sectional view of the cleaning head, negative pressure chamber, and dust suction hole structure of the present invention.

[0047] Explanation of the marks in the figure: 1. chassis; 2. vertical cylinder; 3. side cover; 4. cylinder; 51. servo motor; 52. electric push rod; 53. large gear plate; 54. main circular gear; 55. screw rod; 56. screw rod sleeve; 57. connector; 58. transfer seat; 61. secondary circular gear; 62. swing arm; 63. connecting rod; 64. piston; 65. three-way valve; 66. exhaust pipe; 67. connecting end; 68. rotating end; 71. telescopic tube; 72. horizontal cylinder; 73. air bag; 74. return spring; 75. skeleton; 76. double Head cylinder; 77, slide; 78, clamping frame; 81, planetary gear; 82, differential gear; 83, main bevel gear; 84, secondary bevel gear; 85, synchronous wheel; 86, small gear plate; 87, follower gear; 88, cleaning head; 91, suction pipe; 92, filter; 93, angle pipe; 94, negative pressure pipe; 95, connecting joint; 96, rotary joint; 97, negative pressure chamber; 98, dust suction hole; 10, vertical slot; 11, universal ball; 12, pressure relief pipe; 13, insulating pad; 14, Mecanum wheel; 15, universal wheel. DETAILED DESCRIPTION

[0048] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0049] like Figure 1-Figure 22 As shown, a high-voltage switch trolley transfer platform for power grid protection of the present invention includes a base frame 1, vertical cylinders 2 are fixedly connected to the four sides of the top of the base frame 1, and side covers 3 are fixedly connected to the two sides of the base frame 1 close to the vertical cylinder 2. Mecanum wheels 14 with drive motors are fixedly connected to the four sides of the base frame 1 through brackets. The drive motor drives the Mecanum wheels 14 to move, which facilitates the stable transfer of components thereon and the high-voltage switch trolley through the base frame 1. The rear side of the bottom of the base frame 1 is rotatably connected to a universal wheel 15, which assists in stabilizing the steering of the base frame 1 to prevent the base frame 1 from tilting and tipping, thereby improving its stability.

[0050] The base frame 1 is fixedly connected to the cylinder barrel 4 on both sides near the side cover 3, and a lifting assembly used in conjunction with the vertical cylinder 2 is provided on all sides of the inner cavity of the base frame 1. The lifting assembly includes a servo motor 51 fixed at the bottom center of the base frame 1, and adopts a four-axis stable lifting method to meet the transportation needs of high-voltage switch trolleys of different heights, while also keeping the high-voltage switch trolley under balanced force to prevent it from tipping over during transportation; a supply assembly is provided on the side of the base frame 1 near the cylinder barrel 4, and the supply assembly includes a three-way valve 65 connected to one side of the cylinder barrel 4. After clamping the side of the high-voltage switch trolley after it is in place, under the action of the pulling force, the high-voltage switch trolley is forced to leave the cabinet and reach the transfer seat 58, thereby achieving efficient transportation of the high-voltage switch trolley and providing convenience for subsequent maintenance of the high-voltage switch trolley. A pulling assembly used in conjunction with the lifting assembly is provided on the inner side of the supply assembly, and a cleaning assembly is provided on the inner side of the side cover 3 to clean the side of the high-voltage switch trolley that arrives at the transfer seat 58, thereby increasing the functional diversity of the transfer device.

[0051] like Figure 7-18 As shown, the lifting assembly also includes an electric push rod 52 embedded in the output shaft of the servo motor 51, and the piston rod of the electric push rod 52 is fixedly connected to a large toothed disc 53 used in conjunction with the base frame 1. The large toothed disc 53 is meshed with main circular gears 54 on all sides. The servo motor 51 provides a driving source, and the electric push rod 52 adjusts the meshing stroke between the large toothed disc 53 and the four sets of main circular gears 54. The inner cavity of the main circular gear 54 is embedded with a screw rod 55 that rotates with the vertical cylinder 2, wherein two screw rods 55 have hollow cavities, and the screw rods 55 are threaded. The screw sleeves 56 are connected to the four screw rods 55, and the four sets of main circular gears 54 drive the screw sleeves 56 on the four screw rods 55 to perform synchronous lifting and lowering movements. The inner side of the screw sleeves 56 is fixedly connected to a connecting piece 57, and the inner side of the connecting piece 57 is fixedly connected to a transfer seat 58 for transferring the high-voltage switch trolley. The four sets of screw sleeves 56 drive the transfer seat 58 to be stably lifted and lowered through the four sets of connecting pieces 57. The four-axis stable lifting method is adopted to meet the transportation requirements of high-voltage switch trolleys of different heights, while also keeping the high-voltage switch trolley under balanced force to prevent it from tipping over during transportation;

[0052] A vertical groove 10 is provided on the inner side of the vertical cylinder 2, which slides with the connecting part 57 and serves as a sliding limit for the connecting part 57, thereby improving the lifting and lowering stability of the connecting part 57 to prevent the transfer seat 58 and the high-voltage switch trolley on it from shaking, tilting, tipping over and falling. The bottom of the inner cavity of the transfer seat 58 is movably connected with a universal ball 11 and adopts an array design, which assists the rolling movement of the high-voltage switch trolley pulled onto the transfer seat 58, thereby facilitating the rapid pulling of the high-voltage switch trolley into place.

[0053] The supply assembly also includes a pair of circular gears 61 arranged on the other two sides of the large toothed disc 53. The electric push rod 52 adjusts the meshing stroke between the large toothed disc 53 and the two sets of pair circular gears 61. The top of the pair circular gear 61 is fixedly connected to a swing arm 62 through a fixed rod. A connecting rod 63 is movably connected to the swing arm 62, and the other side of the connecting rod 63 is hinged with a piston 64 that slides with the cylinder barrel 4. The two sets of pair circular gears 61 drive the two sets of swing arms 62, connecting rods 63 and pistons 64 to reciprocate in the two sets of cylinder barrels 4, and the three-way valve The exhaust port of 65 is connected to the exhaust pipe 66, wherein the upper and lower ends of the two screw rods 55 are connected to the connecting end portion 67, and the outer ends of the connecting end portion 67 are rotatably connected to the rotating end portion 68 and maintain a mutual state. The rotating end portion 68 at the bottom is connected to the outer end of the exhaust pipe 66, and then the pressurized air source generated in the two groups of cylinder barrels 4 is transmitted from the exhaust pipes 66 on the two groups of three-way valves 65 to the two groups of connecting end portions 67 and the rotating end portion 68 in sequence through the hollow cavities of the two screw rods 55, completing the supply and delivery of the pressurized air source;

[0054] The pulling assembly includes a telescopic tube 71 connected to the outer end of the top rotating end 68, and the bottom end of the telescopic tube 71 is connected to a horizontal cylinder 72 fixedly matched with the transfer seat 58. The inner cavity of the horizontal cylinder 72 is embedded with an air bag 73 used in conjunction with the telescopic tube 71. The pressurized air source in the two groups of rotating ends 68 passes through the two telescopic tubes 71 to reach the head ends of the air bags 73 in the two groups of horizontal cylinders 72. The air bags 73 are embedded with return springs 74. Under the action of pressure, the two air bags 73 are forced to squeeze and contract backward, and the two return springs 74 are compressed. The inner side of the head end of the air bag 73 is fixedly connected to a skeleton 75 that slides with the horizontal cylinder 72. The skeleton 75 is embedded with a double-headed air bag The two piston rods of the double-headed cylinder 76 are fixedly connected to a slide 77 that slides with the frame 75. The outer side of the slide 77 is fixedly connected to a clamping frame 78 that slides with the frame 75. The head ends of the two air bags 73 that are squeezed and contracted backward drive the two sets of clamping frames 78 to pull backward synchronously through the frame 75. Before this, the double-headed cylinder 76 drives the two sets of clamping frames 78 through the two sets of slides 77 to clamp the side of the high-voltage switch trolley after it is in place. Under the pulling force of the frame 75, the high-voltage switch trolley is forced to leave the cabinet and arrive at the transfer seat 58, thereby achieving an efficient transfer effect of the high-voltage switch trolley and providing convenience for the subsequent maintenance of the high-voltage switch trolley.

[0055] The front side of the horizontal cylinder 72 is connected to a pressure relief pipe 12, which relieves the pressure of the pressurized air source in the airbag 73 in the horizontal cylinder 72, which is beneficial for the airbag 73 to reset under the elastic force of the reset spring 74, and the outer end of the pressure relief pipe 12 is provided with an arc chamfer, and an electric pressure relief valve is provided on the pressure relief pipe 12 to play an electric opening and closing control role for the pressure relief pipe 12. The head end of the airbag 73 is slidably connected to the horizontal cylinder 72, and the end thereof is fixed and maintained in a connected state with the pressure relief pipe 12 outside the horizontal cylinder 72, which is beneficial for the normal expansion and contraction sliding of the airbag 73. The inner cavity of the clamping frame 78 is provided with weight-reducing grooves all around and adopts a triangular design, and the inner side of the clamping frame 78 is fixedly connected with insulating pads 13 all around, which not only insulates the high-voltage switch trolley in the clamped state, but also protects the clamping position on the side of the high-voltage switch trolley.

[0056] The cleaning assembly includes a planetary gear 81 that rotates on the chassis 1 near the front side of the large toothed disc 53, and a differential gear 82 is provided on the front side of the planetary gear 81. The large toothed disc 53 after being adjusted into place drives the differential gear 82 to rotate through the planetary gear 81. The top of the differential gear 82 is fixedly connected to the main bevel gear 83 through a vertical rod, and the top of the main bevel gear 83 is engaged with the secondary bevel gear 84. The differential gear 82 successively drives the main bevel gear 83 and the secondary bevel gear 84 to rotate, and the outer side of the secondary bevel gear 84 is fixed by a cross bar. It is connected to a synchronous wheel 85, and the rear side of the synchronous wheel 85 is connected to a small toothed disc 86 through a synchronous belt drive, and the four sides of the small toothed disc 86 are meshed with a slave circular gear 87 that rotates with the side cover 3. A cleaning head 88 is embedded in the inner cavity of the slave circular gear 87. The secondary bevel gear 84 drives the two groups of small toothed discs 86 to rotate through the two groups of synchronous wheels 85. The two groups of small toothed discs 86 drive the two groups of cleaning heads 88 on the slave circular gears 87 to clean the side of the high-voltage switch trolley that arrives at the transfer seat 58, thereby increasing the functional diversity of the transfer device.

[0057] like Figures 19-22 As shown, during the cleaning of the high-voltage switch trolley after being transferred to the designated position, the dust attached to its surface falls off as the cleaning head 88 rotates, and the negative pressure dust removal function is not provided, resulting in the dust falling off being scattered everywhere, affecting the subsequent maintenance work of the high-voltage switch trolley and reducing the cleanliness of the maintenance site environment. A negative pressure component is provided on the cleaning component, and the negative pressure component includes an intake pipe 91 connected to the intake port of the three-way valve 65, the outer end of the intake pipe 91 is connected to a filter 92, and the top of the filter 92 is connected to an angle pipe 93 with a one-way valve, and the inner end of the angle pipe 93 is connected to a negative pressure pipe 94. The negative pressure generated by the work of the piston 64 in the two groups of cylinder barrels 4 is transmitted through the intake pipe 91 on the two groups of three-way valves 65 to the two groups of filters 92, and then transmitted from the two groups of filters 92 to the two groups of negative pressure pipes 94 through the two angle pipes 93, so that negative pressure suction is generated in the two groups of negative pressure pipes 94;

[0058] The inner end of the negative pressure pipe 94 is connected to a connecting joint 95, and the inner cavity of the connecting joint 95 is rotatably connected to a rotary joint 96 used in conjunction with the cleaning head 88, and they maintain an interconnected state with each other. The inner cavity of the cleaning head 88 is provided with a negative pressure chamber 97 that is connected and cooperates with the connecting joint 95 and the rotary joint 96. The cleaning head 88 is provided with dust suction holes 98 staggered with the brushes around it and connected to the negative pressure chamber 97. The negative pressure suction generated in the two sets of negative pressure pipes 94 is transmitted to the negative pressure chamber 97 in the two sets of cleaning heads 88 in turn by the two sets of connecting joints 95 and the rotary joint 96. Under the action of the negative pressure suction, the dust falling off when the brush cleans the side of the high-voltage switch trolley is adsorbed and collected through the dust suction holes 98 on the two sets of cleaning heads 88. After passing through the two sets of filters 92 for dust removal, it is supplied to the two sets of cylinder barrels 4, providing a clean air source for the extended stroke work of the piston 64, achieving dust collection and dust removal effects, and improving the cleanliness of the maintenance environment.

[0059] The working principle of a high-voltage switch trolley transfer platform for power grid protection is as follows: first, under the stable steering cooperation of the universal wheel 15, the four drive motors are controlled to start and the chassis 1 is driven to move to the front of the transfer position of the high-voltage switch trolley through the four Mecanum wheels 14. Then, the electric push rod 52 is controlled to start and drive the large gear plate 53 to move down to the meshing part of the four main circular gears 54. Then, the servo motor 51 is controlled to start and drive the screw rods 55 on the four main circular gears 54 to rotate forward or reverse synchronously through the meshed large gear plate 53. The four screw rods 55 drive the four sets of screw rod sleeves 56 to move up and down accordingly. The four sets of screw rod sleeves 56 drive the transfer seat 58 to move up or down through the four sets of connecting parts 57. After the height of the transfer seat 58 reaches the predetermined position of the high-voltage switch trolley, the servo motor 51 is controlled to start and drive the large gear plate 53 to move down to the meshing part of the four main circular gears 54. The motor 51 pauses, and then controls the electric push rod 52 to close and drive the large gear plate 53 to move up and disengage the meshing part of the four sets of main circular gears 54 to the initial state. At the same time, the two sets of clamping frames 78 that follow the transfer seat 58 to rise and fall synchronously also reach the clamping positions on both sides of the high-voltage switch trolley, and control the double-headed cylinder 76 to open and drive the clamping frames 78 on the two sets of slides 77 to expand outward or shrink inward in advance until the spacing between the two sets of clamping frames 78 matches the width of the high-voltage switch trolley. Then, control the four sets of drive motors to open again and drive the base frame 1 to move forward through the four sets of Mecanum wheels 14, so that the two sets of clamping frames 78 adjusted in place extend into the clamping positions on both sides of the high-voltage switch trolley. Then control the double-headed cylinder 76 to open again and drive the clamping frames 78 on the two sets of slides 77 to clamp both sides of the high-voltage switch trolley.

[0060] After the two sets of clamping frames 78 are clamped on both sides of the high-voltage switch trolley through the insulating pads 13, the electric push rod 52 is first controlled to open and drive the large toothed disc 53 to move up to the meshing portion of the two sets of sub-circular gears 61 and the planetary gears 81, and then the servo motor 51 is controlled to continue to open and drive the two sets of sub-circular gears 61 to rotate synchronously through the large toothed disc 53 that is meshed in place. The two sets of sub-circular gears 61 drive the two sets of swing arms 62 to rotate accordingly, and the two sets of swing arms 62 drive the pistons 64 on the two connecting rods 63 to reciprocate in the two sets of cylinder barrels 4. When the two sets of pistons 64 are in the extended range state in the two sets of cylinder barrels 4, the pressurized air source generated in the two sets of cylinder barrels 4 is supplied to the two exhaust pipes 66 through the two sets of three-way valves 65, and the two screw rods 55 are in the middle. With the auxiliary transmission cooperation of the cavity, the pressurized air source in the two exhaust pipes 66 is sequentially supplied into the two telescopic tubes 71 through the two groups of connecting ends 67 and the rotating end 68, and is supplied into the head space of the two groups of horizontal cylinders 72. With the continuous supply of the pressurized air source, under the action of the boost pressure, the two air bags 73 are forced to squeeze and shrink backward, and drive the two return springs 74 to compress. At the same time, the two air bags 73 drive the high-voltage switch trolley clamped by the two groups of clamping frames 78 to be pulled backward through the skeleton 75. With the auxiliary rolling cooperation of the universal ball 11, the high-voltage switch trolley is pulled to the transfer seat 58, and then the four groups of Mecanum wheels 14 are controlled to drive the high-voltage switch trolley pulled into place on the transfer seat 58 to be transported to the maintenance area through the base frame 1.

[0061] At the same time, the large gear plate 53 drives the two sets of secondary circular gears 61 to rotate, and also drives the planetary gears 81 to rotate synchronously. The planetary gears 81 drive the differential gear 82 to rotate accordingly. The differential gear 82 drives the main bevel gear 83 and the secondary bevel gear 84 to rotate successively through the vertical rod. The secondary bevel gear 84 drives the two sets of synchronous wheels 85 to rotate accordingly through the cross rod. The two sets of synchronous wheels 85 drive the two sets of small gear plates 86 to rotate accordingly through two synchronous belts. The two sets of small gear plates 86 drive the two sets of circumferentially symmetrically distributed slave circular gears 87 to rotate. The two sets of slave circular gears 87 drive the cleaning heads 88 thereon to clean the sides of the high-voltage switch trolley after pulling and transporting. At the same time, when the two sets of pistons 64 are in the return state in the two sets of cylinder barrels 4, the negative pressure generated in the two sets of cylinder barrels 4 is transmitted to the two sets of filters through the two suction pipes 91. 92, and then in turn from the negative pressure pipe 94 on the two angle tubes 93 through the two groups of connecting joints 95 and the rotary joint 96 to the negative pressure chamber 97 of the two groups of cleaning heads 88. Under the action of the negative pressure force, the dust removed by the cleaning head 88 is vacuumed through the dust suction hole 98, and then filtered by the two groups of filters 92. The clean air source obtained returns to the two groups of cylinder barrels 4 along the original route to provide air source supply for the extended stroke work of the two groups of pistons 64. After the two groups of cleaning heads 88 complete the cleaning and dust removal work on the side of the high-voltage switch trolley, the servo motor 51 is first controlled to be turned off, and then the electric push rod 52 is controlled to be turned off and drive the large gear plate 53 to move down and disengage from the meshing part of the two groups of sub-circular gears 61 and the planetary gear 81 to the initial position, and then the subsequent maintenance process operation is carried out on the high-voltage switch trolley after the transfer and cleaning is completed.

[0062] It should be noted that the specific models and specifications of the servo motor 51, electric push rod 52, double-head cylinder 76, filter 92 and drive motor need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0063] The servo motor 51 , the electric push rod 52 , the double-headed cylinder 76 , the filter 92 , the drive motor and the power supply circuits of various valves are clear to those skilled in the art and will not be described in detail here.

[0064] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A high-voltage switch trolley transfer platform for power grid protection, comprising a chassis (1), characterized in that: The four sides of the top of the base frame (1) are fixedly connected to vertical cylinders (2), and the two sides of the base frame (1) close to the vertical cylinders (2) are fixedly connected to side covers (3); The base frame (1) is fixedly connected to cylinder barrels (4) on both sides close to the side covers (3), and lifting components used in conjunction with the vertical cylinders (2) are provided around the inner cavity of the base frame (1), and the lifting components include a servo motor (51) fixed at the bottom center of the base frame (1); A supply assembly is provided on one side of the base frame (1) close to the cylinder barrel (4), and the supply assembly includes a three-way valve (65) connected to one side of the cylinder barrel (4). A pulling assembly used in conjunction with the lifting assembly is provided on the inner side of the supply assembly, and a cleaning assembly is provided on the inner side of the side cover (3).

2. A high-voltage switchgear transfer platform for power grid protection according to claim 1, characterized in that: The lifting assembly further comprises an electric push rod (52) embedded in the output shaft of the servo motor (51), and the piston rod of the electric push rod (52) is fixedly connected to a large toothed disc (53) used in conjunction with the base frame (1), the large toothed disc (53) is meshed with a main circular gear (54) on all four sides, and the inner cavity of the main circular gear (54) is embedded with a screw rod (55) that rotates with the vertical cylinder (2), wherein two screw rods (55) have hollow cavities, the screw rods (55) are threadedly connected to screw rod sleeves (56), and the inner side of the screw rod sleeve (56) is fixedly connected to a connecting piece (57), and the inner side of the connecting piece (57) is fixedly connected to a transfer seat (58) for transporting a high-voltage switch trolley.

3. A high-voltage switchgear transfer platform for power grid protection according to claim 2, characterized in that: The supply assembly further comprises a pair of circular gears (61) arranged on the other two sides of the large toothed disc (53), and the top of the pair of circular gears (61) is fixedly connected to a swing arm (62) via a fixed rod, a connecting rod (63) is movably connected to the swing arm (62), and the other side of the connecting rod (63) is hinged with a piston (64) that slides with the cylinder barrel (4), and the exhaust port of the three-way valve (65) is connected to an exhaust pipe (66), wherein the upper and lower ends of the two screw rods (55) are both connected to a connecting end (67), and the outer ends of the connecting end (67) are rotatably connected to a rotating end (68) and maintain a mutual communication state with each other, and the rotating end (68) located at the bottom is connected to the outer end of the exhaust pipe (66).

4. A high-voltage switchgear transfer platform for power grid protection according to claim 3, characterized in that: The pulling assembly includes a telescopic tube (71) connected to the outer end of the top rotating end (68), and the bottom end of the telescopic tube (71) is connected to a transverse cylinder (72) fixedly matched with the transfer seat (58), the inner cavity of the transverse cylinder (72) is embedded with an air bag (73) used in conjunction with the telescopic tube (71), the air bag (73) is embedded with a return spring (74), and the inner side of the head end of the air bag (73) is fixedly connected to a skeleton (75) that slides with the transverse cylinder (72), the skeleton (75) is embedded with a double-headed cylinder (76), and the two piston rods of the double-headed cylinder (76) are fixedly connected to a slide (77) that slides with the skeleton (75), and the outer side of the slide (77) is fixedly connected to a clamping frame (78) that slides with the skeleton (75).

5. A high-voltage switch trolley transfer platform for power grid protection according to claim 4, characterized in that: The cleaning assembly comprises a planetary gear (81) rotating on the chassis (1) near the front side of the large toothed disc (53), and a differential gear (82) is provided on the front side of the planetary gear (81), the top of the differential gear (82) is fixedly connected to the main bevel gear (83) through a vertical rod, and the top of the main bevel gear (83) is meshed with a secondary bevel gear (84), and the outer side of the secondary bevel gear (84) is fixedly connected to a synchronous wheel (85) through a horizontal rod, the rear side of the synchronous wheel (85) is connected to a small toothed disc (86) through a synchronous belt drive, and the four sides of the small toothed disc (86) are meshed with a secondary circular gear (87) that rotates with the side cover (3), and the inner cavity of the secondary circular gear (87) is embedded with a cleaning head (88).

6. A high-voltage switchgear transfer platform for power grid protection according to claim 5, characterized in that: A vertical groove (10) that is slidably engaged with the connecting piece (57) is provided on the inner side of the vertical cylinder (2), and a universal ball (11) is movably connected to the bottom of the inner cavity of the transfer seat (58) and adopts an array-shaped design.

7. A high-voltage switchgear transfer platform for power grid protection according to claim 6, characterized in that: The front side of the horizontal cylinder (72) is connected to a pressure relief pipe (12), and the outer end of the pressure relief pipe (12) is provided with an arc chamfer. An electric pressure relief valve is provided on the pressure relief pipe (12).

8. The high-voltage switch trolley transfer platform for power grid protection according to claim 7, characterized in that: The head end of the airbag (73) is slidably connected to the transverse cylinder (72), and the tail end thereof is fixed to the pressure relief pipe (12) outside the transverse cylinder (72) and maintains a communicating state.

9. A high-voltage switchgear transfer platform for power grid protection according to claim 8, characterized in that: The inner cavity of the clamping frame (78) is provided with weight-reducing grooves on all sides thereof and adopts a triangular design, and insulating pads (13) are fixedly connected on all sides of the inner side of the clamping frame (78).

10. A high-voltage switchgear transfer platform for power grid protection according to claim 9, characterized in that: Mecanum wheels (14) with a driving motor are fixedly connected to the four sides of the bottom of the base frame (1) through brackets, and a universal wheel (15) is rotatably connected to the rear side of the bottom of the base frame (1).

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