Lifting device suitable for different road conditions and used for transformer substation

Abstract

The invention discloses a lifting device suitable for different road conditions for a transformer substation, and belongs to the technical field of transformer substation construction.The lifting device comprises a chassis, a left bearing plate of the chassis is fixedly connected with a driving box located below the chassis, a first motor is arranged in the driving box, and the first motor is connected with a transmission assembly; the transmission assembly is connected with a left transmission shaft, the two ends of the left transmission shaft extend to the front outer side and the rear outer side of the chassis respectively, the two ends of the left transmission shaft are both connected with triangular left driving wheels, a right transmission shaft is arranged at the right end of the chassis, and the two ends of the right transmission shaft are both connected with triangular right driving wheels. And a connecting assembly is arranged below the right end of the chassis. Through the arrangement of the triangular left driving wheel and the triangular right driving wheel, the device can stride over pits or steps to adapt to various uneven road surfaces. Through the arrangement of the connecting assembly, the lifting device can get on and off the truck more easily in a labor-saving mode.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer substation construction, and in particular relates to a lifting device for transformer substations which is adaptable to different road conditions. Background Art

[0002] As a forklift, hydraulic lift is one of the commonly used tools in substation construction. With the help of lift, it is very convenient and fast to carry goods at high places. However, the working road surface in the substation is usually an uneven gravel ground. It is difficult for the lift to travel on this ground, and it is very bumpy, which increases the uncertainty in the operation. There is a step about 20cm high on the edge of the gravel road. If the lift wants to pass this step, it usually needs to be carried and dragged by manpower, which is very troublesome. Therefore, it is necessary to improve the lift so that it can easily pass the steps and can travel stably on the gravel road, saving manpower and ensuring the smooth operation. In addition, the lift is stored in the warehouse. When the lift is needed during operation, it is necessary to use a truck to transport the lift from the warehouse to the site. In this process, at least four people are required to lift the lift onto or off the truck. If the existing lift can be improved to make it suitable for poor road conditions, and then a suitable auxiliary device is designed for it to help it get on and off the truck, it will provide great convenience for the construction of the front-line operation site.

[0003] Publication (Announcement) No.: CN108557698B, discloses a liftable trolley for substation maintenance, which is composed of a horizontal frame, a vertical gantry, a trolley guide rail, an adjustment mechanism for adjusting the height and width of the trolley guide rail, a hydraulic mechanism for lifting a circuit breaker trolley, and a handle, wherein the hydraulic mechanism is composed of a boom, a pulley, a gear, a chain, a hydraulic pump, and a hydraulic lifting column. The circuit breaker trolley is first moved to the bottom of the boom through the trolley guide rail. The trolley guide rail can be appropriately adjusted according to the width of the circuit breaker trolley. Then, the circuit breaker trolley is hung by the hook on the boom. The hydraulic pump is turned on to provide power for the hydraulic lifting column. The lifting column of the hydraulic lifting column rises upward and drives the gear at the top of the lifting column to move upward. Since one end of the chain is fixed to the fixed end of the hydraulic lifting column, the other end of the chain bypasses the gear and begins to shrink upward, driving the boom to move upward, and finally drives the circuit breaker trolley to move upward to complete the lifting action. The lowering operation is reversed.

[0004] Publication (announcement) number: CN112027968B, discloses a lifting platform for substation maintenance, including a scissors-type lift, the scissors-type lift includes a top plate, a bottom plate and an electric push rod, a PLC is installed on the scissors-type lift, the control end of the electric push rod is electrically connected to the output end of the PLC, a plurality of connecting ropes are vertically arranged between the top plate and the bottom plate, a movable groove is arranged on the connecting rope, and a driving component for driving the movable groove to move up and down is arranged in the top plate and the bottom plate. In the present invention, the required tools can be delivered to the hands of the staff without lowering the scissors-type lift, thereby improving the maintenance efficiency.

[0005] Publication (Announcement) No.: CN111776983B discloses a lifting device for a prefabricated substation, belonging to the field of prefabricated substations, including a substation body, a connecting frame sleeved on the substation body, the bottom of the connecting frame is rotatably connected with evenly distributed triangular clamps, the left and right sides of the connecting frame are fixedly connected with two rows of equally spaced sliding rods, the left and right sides of the connecting frame are provided with slide plates, the end of the sliding rod away from the connecting frame penetrates and extends to the outside of the slide plate, the bottom of the two slide plates are provided with a movable plate, the two movable plates are fixedly installed with two hydraulic rods, and the tops of the four hydraulic rods are respectively fixedly connected to the two slide plates. The present invention avoids traditional cranes or manual handling and placement, saves installation costs, saves time and effort, and is simple and convenient to operate. It can effectively ensure the stability of the substation body during security and avoid bumps and damage to the substation body.

[0006] Publication (Announcement) No.: CN115057393B discloses a substation maintenance lifting device with a protective function, including a base, a protective mechanism fixedly connected to the top of the base, an adjustment mechanism fixedly connected to the top of the base, an adjustment plate fixedly connected to the top of the adjustment mechanism, two side plates fixedly connected to the top of the adjustment plate, the rear sides of the two side plates fixedly connected to the same protective plate, and an anti-sway mechanism provided at the bottom of the base. The substation maintenance lifting device with a protective function, by providing a protective mechanism, limits the top and bottom of the adjustment plate by providing a limit bar, thereby effectively avoiding the phenomenon of rapid descent due to mechanical failure during maintenance, avoiding the occurrence of safety incidents, and in addition, through the action of the rubber pad, it can reduce the damage to maintenance personnel when accidental electric shock occurs during maintenance, thereby improving the safety of the device.

[0007] The patent documents searched do not disclose the technical solution of the present invention, and do not solve the problem solved by the present invention of using an auxiliary device to assist the lifting device in getting on and off a truck in poor road conditions. Summary of the invention

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a lifting device for a substation that is adaptable to different road conditions, thereby solving the problems in the above-mentioned background technology.

[0009] The object of the present invention is achieved as follows: a lifting device for a substation that can adapt to different road conditions, comprising a chassis, a left bearing plate of the chassis fixedly connected to a drive box located below the chassis, a first motor arranged inside the drive box, the first motor connected to a transmission assembly, the transmission assembly connected to a left transmission shaft, the two ends of the left transmission shaft respectively extending to the front and rear outer sides of the chassis, both ends of the left transmission shaft connected to a triangular left drive wheel, a right transmission shaft arranged at the right end of the chassis, both ends of the right transmission shaft connected to a triangular right drive wheel; a connecting assembly is arranged below the right end of the chassis. The triangular left drive wheel and the triangular right drive wheel both include an auxiliary cylinder connected to the end of the left transmission shaft or the right transmission shaft, the side wall of the auxiliary cylinder is fixedly connected to a first support rod, a second support rod and a third support rod arranged in a triangular shape, the outer end of the first support rod is rotatably connected to a first sub-wheel, the outer end of the second support rod is rotatably connected to a second sub-wheel, and the outer end of the third support rod is rotatably connected to a third sub-wheel. Through the setting of the triangular left drive wheel and the triangular right drive wheel, during normal driving on a flat road, the two lower wheels touch the ground, and the upper wheel is suspended in the air. When the road is uneven, the wheels fall into uneven pits, or when passing over steps, the front wheels are unable to move forward due to force. At this time, the vehicle continues to be powered forward, and the triangular wheels will rotate with their front wheels as fulcrums, crossing the pits or steps. After the rotation, the suspended wheels become the front wheels, and the rear wheels are suspended in the air. Through the setting of the connecting assembly, when the lifting device is loaded onto or unloaded from a truck, the connecting plate of the connecting assembly is overlapped at the tail of the truck, making it easier and more labor-saving for the lifting device to get on and off the truck.

[0010] Furthermore, a lifting assembly is fixedly provided on the upper surface of the right bearing plate of the chassis, and a bearing platform is fixedly provided on the upper end of the lifting assembly; an operating driving assembly is fixedly provided on the upper surface of the left bearing plate of the chassis; an auxiliary assembly for assisting the lifting device to be moved to the interior of the truck is provided at the right end of the chassis; a left supporting assembly is provided at the left end of the chassis, and a right supporting assembly is provided at the right end of the chassis. When in use, the operator controls the forward and backward movement of the chassis of the lifting device by operating the driving assembly, and controls the raising and lowering of the lifting assembly by operating the driving assembly, and people can stand and tools can be placed on the top of the bearing platform. After the chassis moves to the designated position, the chassis is firmly fixed and stopped by the left supporting assembly and the right supporting assembly.

[0011] Furthermore, the auxiliary component includes an auxiliary plate fixedly arranged inside the right end of the chassis, the upper surface of the auxiliary plate is fixedly connected with a front vertical plate and a right vertical plate, a rotating shaft is rotatably arranged between the front vertical plate and the rear vertical plate, a second motor is fixedly arranged on the upper surface of the auxiliary plate, the output shaft of the second motor is connected to one end of the rotating shaft, a front traction rope and a rear traction rope are wound around the side wall of the rotating shaft, and the front traction rope and the rear traction rope are arranged correspondingly, and a front guide component corresponding to the front traction rope and a rear guide component corresponding to the rear traction rope are arranged at the right end of the chassis. When in use, the auxiliary component and the connecting component cooperate with each other to make the lifting device more convenient to get on and off the truck. First, one end of the connecting plate of the connecting component is placed in the rear compartment of the truck, and the other end of the connecting plate is placed under the chassis of the lifting device. The second motor starts to drive the shaft to rotate. During the rotation of the shaft, the front and rear traction ropes are released, and the front and rear traction ropes are extended, and the outer ends of the two traction ropes are connected to the hooks at the front end of the truck compartment. At this time, the second motor rotates in the opposite direction, and the second motor drives the shaft to rotate in the opposite direction, thereby driving the front and rear traction ropes to reel in, shorten the front and rear traction ropes, and drive the chassis to move along the connecting plate to the interior of the truck compartment. At the same time, the traction efficiency is improved by setting the front guide assembly and the rear guide assembly.

[0012] Further, the front guide assembly includes a front concave seat, a front pulley is arranged inside the front concave seat, a front rotating rod is rotatably arranged on the upper end of the front concave seat, the front traction rope passes through the gap between the front rotating rod and the front pulley and extends to the outside of the chassis, the outer end of the front traction rope is connected to a front blocking member, and the maximum cross-sectional diameter of the front blocking member is larger than the gap between the front pulley and the front rotating rod. The rear guide assembly includes a rear concave seat, a rear pulley is arranged inside the rear concave seat, a rear rotating rod is rotatably arranged on the upper end of the rear concave seat, the rear traction rope passes through the gap between the rear rotating rod and the rear pulley and extends to the outside of the chassis, the outer end of the rear traction rope is connected to a rear blocking member, and the maximum cross-sectional diameter of the rear blocking member is larger than the gap between the rear pulley and the rear rotating rod. When in use, during the movement of the front traction rope and the rear traction rope, the pulleys can reduce the friction between the traction rope and the truck by utilizing the setting of the front pulley and the rear pulley, thereby reducing the friction between the lifting device and the truck.

[0013] Further, the left support assembly includes a left front support ear and a left rear support ear fixedly connected to the left end of the chassis, the plate surfaces of the left front support ear and the left rear support ear are both provided with threaded holes, a left screw is threadedly connected inside the threaded hole, a left support plate is fixedly provided at the lower end of the left screw, and a left through hole for driving the left screw to rotate is provided at the upper end of the left screw. The right support assembly includes a right front support ear and a right rear support ear fixedly connected to the right end of the chassis, the plate surfaces of the right front support ear and the right rear support ear are both provided with threaded holes, a right screw is threadedly connected inside the threaded hole, a right support plate is fixedly provided at the lower end of the right screw, and a right through hole for driving the right screw to rotate is provided at the upper end of the right screw. When in use, after the chassis is moved to the designated position, the operator rotates a left screw or a right screw to move the left screw or the right screw downward, so that the left support plate or the right support plate at its lower end contacts the ground, replenishes the uneven road surface, and makes the chassis stop more stably.

[0014] Furthermore, a card holder is provided below the right end of the chassis, and a connecting plate is detachably connected to the inside of the card holder, and the card holder includes a front L-shaped card ear and a rear L-shaped card ear, and a folded edge portion is provided at one end of the connecting plate. When in use, the connecting plate is pulled out of the card holder, and when not in use, the connecting plate is inserted into the two L-shaped cards, which is convenient to use and easy to store. Through the provision of the folded edge portion, when the connecting plate is placed between the truck and the lifting device, one end of the folded edge portion is placed in the compartment of the truck, and the folded edge portion is used to increase the friction between the connecting plate and the truck, so that the placement of the connecting plate is more stable.

[0015] The beneficial effects of the present invention are as follows: through the arrangement of the triangular left driving wheel and the triangular right driving wheel, during normal driving on a flat road, the two lower wheels touch the ground, and the upper wheel is suspended in the air. When the road surface is uneven, the wheel falls into an uneven pit, or passes through a step, the front wheel is forced to be unable to move forward, and the power to the vehicle continues to be given forward. At this time, the triangular wheel will rotate with its front wheel as a fulcrum, crossing the pit or step, and after the rotation, the suspended wheel becomes the front wheel, and the rear wheel is suspended. Through the arrangement of the connecting assembly, in the process of loading the lifting device onto a truck or unloading it from a truck, the connecting plate of the connecting assembly is overlapped at the tail of the truck, making it easier for the lifting device to get on and off the truck. When in use, the operator controls the chassis of the lifting device to move forward and backward by operating the driving assembly, and controls the lifting assembly to rise and fall by operating the driving assembly, and people can stand and place tools on the top of the load-bearing platform. After the chassis moves to the specified position, the chassis is firmly fixed and stopped by the left support assembly and the right support assembly.

[0016] The auxiliary components and the connecting components cooperate with each other to make the lifting device more convenient for getting on and off the truck. First, place one end of the connecting plate of the connecting component in the rear compartment of the truck, and place the other end of the connecting plate under the chassis of the lifting device. The second motor starts to drive the rotating shaft to rotate. During the rotation of the rotating shaft, the front traction rope and the rear traction rope are released, and the front traction rope and the rear traction rope are extended. The outer ends of the two traction ropes are connected to the hooks at the front end of the truck compartment. At this time, the second motor is rotated in the opposite direction, and the second motor drives the rotating shaft to rotate in the opposite direction, thereby driving the front traction rope and the rear traction rope to reel in, and the front traction rope and the rear traction rope are shortened, driving the chassis to move along the connecting plate to the interior of the truck compartment. At the same time, the traction efficiency is improved by the setting of the front guide component and the rear guide component.

[0017] During the movement of the front and rear traction ropes, the pulleys can reduce the friction between the traction rope and the truck and reduce the friction between the lifting device and the truck by using the setting of the front and rear pulleys. After moving the chassis to the specified position, the operator rotates a left screw or a right screw to move the left screw or the right screw downward, and the left support plate or the right support plate at its lower end contacts the ground to compensate for the uneven road surface, so that the chassis stops more stably. When the connecting plate is not in use, insert the connecting plate into the two L-shaped ears, which is convenient to use and easy to store. Through the setting of the folding part, when the connecting plate is placed between the truck and the lifting device, one end of the folding part is placed in the compartment of the truck. The folding part is used to increase the friction between the connecting plate and the truck, so that the placement of the connecting plate is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the prior art structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 The present invention Figure 2 Middle A: Enlarged view; Figure 4 It is a schematic diagram of the main structure of the chassis of the present invention; Figure 5 It is a schematic diagram of the chassis structure viewed from above of the present invention; Figure 6 It is a left-side perspective structural diagram of the chassis of the present invention; Figure 7 The present invention Figure 6 Middle B: Enlarged view; Figure 8 It is a right-side perspective structural diagram of the chassis of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the chassis of the present invention when viewed from above; Fig.10 The present invention Fig. 9 Middle C enlarged image.

[0019] In the figure: 1, chassis 2, drive box 3, left drive wheel 4, right drive wheel 5, auxiliary cylinder 6, first sub-wheel 7, second sub-wheel 8, third sub-wheel 9, lifting assembly 10, carrying platform 11, operating driving assembly 12, auxiliary assembly 13, left support assembly 14, right support assembly 15, auxiliary plate 16, second motor 17, front pulling rope 18, rear pulling rope 19, front guide assembly 20, rear guide assembly 21, front concave seat 22, front pulley 23, front rotating rod 24, left front support ear 25, right front support ear 26, left support plate 27, right support plate 28, front L clamp ear 29, rear L clamp ear 30, connecting plate. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings. It should be pointed out that all directional words such as up, down, front, back, left, and right appearing in the present invention do not limit the present invention, but are only for clearer description and explanation of the present invention.

[0021] Example 1 like Figure 1-10 As shown, this embodiment discloses a lifting device for a substation that can adapt to different road conditions, which includes a chassis 1, a left bearing plate of the chassis 1 is fixedly connected to a drive box 2 located below the chassis 1, a first motor is arranged inside the drive box 2, the first motor is connected to a transmission assembly, the transmission assembly is connected to a left transmission shaft, the two ends of the left transmission shaft extend to the front and rear outer sides of the chassis 1 respectively, both ends of the left transmission shaft are connected to a triangular left driving wheel 3, a right transmission shaft is arranged at the right end of the chassis 1, and both ends of the right transmission shaft are connected to a triangular right driving wheel 4; a connecting assembly is arranged below the right end of the chassis 1. The triangular left driving wheel 3 and the triangular right driving wheel 4 both include an auxiliary cylinder 5 connected to the end of the left transmission shaft or the right transmission shaft, the side wall of the auxiliary cylinder 5 is fixedly connected to a first support rod, a second support rod and a third support rod arranged in a triangular shape, the outer end of the first support rod is rotatably connected to a first sub-wheel 6, the outer end of the second support rod is rotatably connected to a second sub-wheel 7, and the outer end of the third support rod is rotatably connected to a third sub-wheel 8. By setting the triangular left driving wheel 3 and the triangular right driving wheel 4, during normal driving on a flat road, the two lower wheels touch the ground, and the upper wheel is suspended in the air. When the road surface is uneven, the wheels fall into an uneven pit, or when passing over a step, the front wheel is forced to be unable to move forward. At this time, the power to the vehicle continues to move forward, and the triangular wheel will rotate with its front wheel as the fulcrum, crossing the pit or step. After the rotation, the suspended wheel becomes the front wheel, and the rear wheel is suspended. By setting the connecting assembly, when the lifting device is loaded onto or unloaded from a truck, the connecting plate 30 of the connecting assembly is overlapped on the tail of the truck, making it easier and more labor-saving for the lifting device to get on and off the truck.

[0022] Example 2 like Figure 1-10 As shown, this embodiment discloses a lifting device for a substation that can adapt to different road conditions, which includes a chassis 1, a left bearing plate of the chassis 1 is fixedly connected to a drive box 2 located below the chassis 1, a first motor is arranged inside the drive box 2, the first motor is connected to a transmission assembly, the transmission assembly is connected to a left transmission shaft, the two ends of the left transmission shaft extend to the front and rear outer sides of the chassis 1 respectively, both ends of the left transmission shaft are connected to a triangular left driving wheel 3, a right transmission shaft is arranged at the right end of the chassis 1, and both ends of the right transmission shaft are connected to a triangular right driving wheel 4; a connecting assembly is arranged below the right end of the chassis 1. The triangular left driving wheel 3 and the triangular right driving wheel 4 both include an auxiliary cylinder 5 connected to the end of the left transmission shaft or the right transmission shaft, the side wall of the auxiliary cylinder 5 is fixedly connected to a first support rod, a second support rod and a third support rod arranged in a triangular shape, the outer end of the first support rod is rotatably connected to a first sub-wheel 6, the outer end of the second support rod is rotatably connected to a second sub-wheel 7, and the outer end of the third support rod is rotatably connected to a third sub-wheel 8. By setting the triangular left driving wheel 3 and the triangular right driving wheel 4, during normal driving on a flat road, the two lower wheels touch the ground, and the upper wheel is suspended in the air. When the road surface is uneven, the wheels fall into an uneven pit, or when passing over a step, the front wheel is forced to be unable to move forward. At this time, the power to the vehicle continues to move forward, and the triangular wheel will rotate with its front wheel as the fulcrum, crossing the pit or step. After the rotation, the suspended wheel becomes the front wheel, and the rear wheel is suspended. By setting the connecting assembly, when the lifting device is loaded onto or unloaded from a truck, the connecting plate 30 of the connecting assembly is overlapped on the tail of the truck, making it easier and more labor-saving for the lifting device to get on and off the truck.

[0023] For better effect, a lifting assembly 9 is fixedly provided on the upper surface of the right bearing plate of the chassis 1, and a bearing platform 10 is fixedly provided on the upper end of the lifting assembly 9; an operating driving assembly 11 is fixedly provided on the upper surface of the left bearing plate of the chassis 1; an auxiliary assembly 12 for assisting the lifting device to be moved to the interior of the truck is provided at the right end of the chassis 1; a left supporting assembly 13 is provided at the left end of the chassis 1, and a right supporting assembly 14 is provided at the right end of the chassis 1. When in use, the operator controls the chassis 1 of the lifting device to move forward and backward by operating the driving assembly 11, and controls the lifting and lowering of the lifting assembly 9 by operating the driving assembly 11, and people can stand and place tools on the top of the bearing platform 10. After the chassis 1 moves to the designated position, the left supporting assembly 13 and the right supporting assembly 14 are used to firmly fix the chassis 1 and stop it.

[0024] For better effect, the auxiliary component 12 includes an auxiliary plate 15 fixedly arranged inside the right end of the chassis 1, the upper surface of the auxiliary plate 15 is fixedly connected with a front vertical plate and a right vertical plate, a rotating shaft is rotatably arranged between the front vertical plate and the rear vertical plate, a second motor 16 is fixedly arranged on the upper surface of the auxiliary plate 15, the output shaft of the second motor 16 is connected to one end of the rotating shaft, a front traction rope 17 and a rear traction rope 18 are wound around the side wall of the rotating shaft, and the front traction rope 17 and the rear traction rope 18 are arranged correspondingly, and the right end of the chassis 1 is provided with a front guide component 19 corresponding to the front traction rope 17, and a rear guide component 20 corresponding to the rear traction rope 18. When in use, the auxiliary component 12 and the connecting component cooperate with each other to make the lifting device more convenient to get on and off the truck. First, one end of the connecting plate 30 of the connecting component is placed in the rear compartment of the truck, and the other end of the connecting plate 30 is placed under the chassis of the lifting device. The second motor 16 starts to drive the shaft to rotate. During the rotation of the shaft, the front traction rope 17 and the rear traction rope 18 are released, and the front traction rope 17 and the rear traction rope 18 are extended, and the outer ends of the two traction ropes are connected to the hook at the front end of the truck compartment. At this time, the second motor 16 is rotated in the opposite direction, and the second motor 16 drives the shaft to rotate in the opposite direction, thereby driving the front traction rope 17 and the rear traction rope 18 to reel up, and the front traction rope 17 and the rear traction rope 18 are shortened, driving the chassis 1 to move along the connecting plate 30 to the interior of the truck compartment. At the same time, the traction efficiency is improved by the arrangement of the front guide assembly 19 and the rear guide assembly 20.

[0025] Example 3 like Figure 1-10As shown, this embodiment discloses a lifting device for a substation that can adapt to different road conditions, which includes a chassis 1, a left bearing plate of the chassis 1 is fixedly connected to a drive box 2 located below the chassis 1, a first motor is arranged inside the drive box 2, the first motor is connected to a transmission assembly, the transmission assembly is connected to a left transmission shaft, the two ends of the left transmission shaft extend to the front and rear outer sides of the chassis 1 respectively, both ends of the left transmission shaft are connected to a triangular left driving wheel 3, a right transmission shaft is arranged at the right end of the chassis 1, and both ends of the right transmission shaft are connected to a triangular right driving wheel 4; a connecting assembly is arranged below the right end of the chassis 1. The triangular left driving wheel 3 and the triangular right driving wheel 4 both include an auxiliary cylinder 5 connected to the end of the left transmission shaft or the right transmission shaft, the side wall of the auxiliary cylinder 5 is fixedly connected to a first support rod, a second support rod and a third support rod arranged in a triangular shape, the outer end of the first support rod is rotatably connected to a first sub-wheel 6, the outer end of the second support rod is rotatably connected to a second sub-wheel 7, and the outer end of the third support rod is rotatably connected to a third sub-wheel 8. By setting the triangular left driving wheel 3 and the triangular right driving wheel 4, during normal driving on a flat road, the two lower wheels touch the ground, and the upper wheel is suspended in the air. When the road surface is uneven, the wheels fall into an uneven pit, or when passing over a step, the front wheel is forced to be unable to move forward. At this time, the power to the vehicle continues to move forward, and the triangular wheel will rotate with its front wheel as the fulcrum, crossing the pit or step. After the rotation, the suspended wheel becomes the front wheel, and the rear wheel is suspended. By setting the connecting assembly, when the lifting device is loaded onto or unloaded from a truck, the connecting plate 30 of the connecting assembly is overlapped on the tail of the truck, making it easier and more labor-saving for the lifting device to get on and off the truck.

[0026] For better effect, a lifting assembly 9 is fixedly provided on the upper surface of the right bearing plate of the chassis 1, and a bearing platform 10 is fixedly provided on the upper end of the lifting assembly 9; an operating driving assembly 11 is fixedly provided on the upper surface of the left bearing plate of the chassis 1; an auxiliary assembly 12 for assisting the lifting device to be moved to the interior of the truck is provided at the right end of the chassis 1; a left supporting assembly 13 is provided at the left end of the chassis 1, and a right supporting assembly 14 is provided at the right end of the chassis 1. When in use, the operator controls the chassis 1 of the lifting device to move forward and backward by operating the driving assembly 11, and controls the lifting and lowering of the lifting assembly 9 by operating the driving assembly 11, and people can stand and place tools on the top of the bearing platform 10. After the chassis 1 moves to the designated position, the left supporting assembly 13 and the right supporting assembly 14 are used to firmly fix the chassis 1 and stop it.

[0027] For better effect, the auxiliary component 12 includes an auxiliary plate 15 fixedly arranged inside the right end of the chassis 1, the upper surface of the auxiliary plate 15 is fixedly connected with a front vertical plate and a right vertical plate, a rotating shaft is rotatably arranged between the front vertical plate and the rear vertical plate, a second motor 16 is fixedly arranged on the upper surface of the auxiliary plate 15, the output shaft of the second motor 16 is connected to one end of the rotating shaft, a front traction rope 17 and a rear traction rope 18 are wound around the side wall of the rotating shaft, and the front traction rope 17 and the rear traction rope 18 are arranged correspondingly, and the right end of the chassis 1 is provided with a front guide component 19 corresponding to the front traction rope 17, and a rear guide component 20 corresponding to the rear traction rope 18. When in use, the auxiliary component 12 and the connecting component cooperate with each other to make the lifting device more convenient to get on and off the truck. First, one end of the connecting plate 30 of the connecting component is placed in the rear compartment of the truck, and the other end of the connecting plate 30 is placed under the chassis of the lifting device. The second motor 16 starts to drive the shaft to rotate. During the rotation of the shaft, the front traction rope 17 and the rear traction rope 18 are released, and the front traction rope 17 and the rear traction rope 18 are extended, and the outer ends of the two traction ropes are connected to the hook at the front end of the truck compartment. At this time, the second motor 16 is rotated in the opposite direction, and the second motor 16 drives the shaft to rotate in the opposite direction, thereby driving the front traction rope 17 and the rear traction rope 18 to reel up, and the front traction rope 17 and the rear traction rope 18 are shortened, driving the chassis 1 to move along the connecting plate 30 to the interior of the truck compartment. At the same time, the traction efficiency is improved by the arrangement of the front guide assembly 19 and the rear guide assembly 20.

[0028] For better effect, the front guide assembly 19 includes a front concave seat 21, a front pulley 22 is arranged inside the front concave seat 21, a front rotating rod 23 is rotatably arranged on the upper end of the front concave seat 21, the front traction rope 17 passes through the gap between the front rotating rod 23 and the front pulley 22 and extends to the outside of the chassis 1, the outer end of the front traction rope 17 is connected to a front blocking member, and the maximum cross-sectional diameter of the front blocking member is larger than the gap between the front pulley 22 and the front rotating rod 23. The rear guide assembly 20 includes a rear concave seat, a rear pulley is arranged inside the rear concave seat, a rear rotating rod is rotatably arranged on the upper end of the rear concave seat, the rear traction rope 18 passes through the gap between the rear rotating rod and the rear pulley and extends to the outside of the chassis 1, the outer end of the rear traction rope 18 is connected to a rear blocking member, and the maximum cross-sectional diameter of the rear blocking member is larger than the gap between the rear pulley and the rear rotating rod. When in use, during the movement of the front pulling rope 17 and the rear pulling rope 18, the front pulley 22 and the rear pulley are used to reduce the friction between the pulling rope and the truck, thereby reducing the friction between the lifting device and the truck.

[0029] For better effect, the left support assembly 13 includes a left front support ear 24 and a left rear support ear fixedly connected to the left end of the chassis 1, the plate surfaces of the left front support ear 24 and the left rear support ear are both provided with threaded holes, a left screw is threadedly connected inside the threaded holes, a left support plate 26 is fixedly provided at the lower end of the left screw, and a left through hole for driving the left screw to rotate is provided at the upper end of the left screw. The right support assembly 14 includes a right front support ear 25 and a right rear support ear fixedly connected to the right end of the chassis 1, the plate surfaces of the right front support ear 25 and the right rear support ear are both provided with threaded holes, a right screw is threadedly connected inside the threaded holes, a right support plate 27 is fixedly provided at the lower end of the right screw, and a right through hole for driving the right screw to rotate is provided at the upper end of the right screw. When in use, after the chassis 1 is moved to the specified position, the operator rotates a left screw or a right screw to move the left screw or the right screw downward, so that the left support plate 26 or the right support plate 27 at the lower end contacts the ground, compensates for the uneven road surface, and makes the chassis 1 stop more stably.

[0030] For better effect, a card holder is provided at the lower right end of the chassis 1, and a connecting plate 30 is detachably connected inside the card holder. The card holder includes a front L-shaped ear 28 and a rear L-shaped ear 29, and one end of the connecting plate 30 is provided with a folded edge. When in use, the connecting plate 30 is pulled out of the card holder, and when not in use, the connecting plate 30 is inserted into the two L-shaped ears, which is convenient to use and easy to store. Through the setting of the folded edge, when the connecting plate 30 is placed between the truck and the lifting device, one end of the folded edge is placed in the compartment of the truck, and the folded edge is used to increase the friction between the connecting plate 30 and the truck, so that the placement of the connecting plate 30 is more stable.

[0031] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting device for a substation that can adapt to different road conditions, including a chassis, characterized in that: The left bearing plate of the chassis is fixedly connected to a drive box located below the chassis, a first motor is arranged inside the drive box, the first motor is connected to a transmission assembly, the transmission assembly is connected to a left transmission shaft, both ends of the left transmission shaft extend to the front and rear outer sides of the chassis respectively, both ends of the left transmission shaft are connected to a triangular left driving wheel, a right transmission shaft is arranged at the right end of the chassis, both ends of the right transmission shaft are connected to a triangular right driving wheel; a connecting assembly is arranged below the right end of the chassis.

2. The lifting device for substations adapted to different road conditions according to claim 1 is characterized in that: The triangular left driving wheel and the triangular right driving wheel both include an auxiliary cylinder connected to the end of the left transmission shaft or the right transmission shaft, the side wall of the auxiliary cylinder is fixedly connected to a first support rod, a second support rod and a third support rod arranged in a triangle, the outer end of the first support rod is rotatably connected to the first minute wheel, the outer end of the second support rod is rotatably connected to the second minute wheel, and the outer end of the third support rod is rotatably connected to the third minute wheel.

3. The lifting device for substations adapted to different road conditions according to claim 1 is characterized in that: A lifting assembly is fixedly arranged on the upper surface of the right supporting plate of the chassis, and a carrying platform is fixedly arranged on the upper end of the lifting assembly; an operating driving assembly is fixedly arranged on the upper surface of the left supporting plate of the chassis; an auxiliary assembly for assisting the lifting device to be moved to the interior of the truck is arranged at the right end of the chassis; a left supporting assembly is arranged at the left end of the chassis, and a right supporting assembly is arranged at the right end of the chassis.

4. The lifting device for substations adapted to different road conditions according to claim 3 is characterized in that: The auxiliary component includes an auxiliary plate fixedly arranged inside the right end of the chassis, the upper surface of the auxiliary plate is fixedly connected with a front vertical plate and a right vertical plate, a rotating shaft is rotatably arranged between the front vertical plate and the rear vertical plate, a second motor is fixedly arranged on the upper surface of the auxiliary plate, the output shaft of the second motor is connected to one end of the rotating shaft, a front traction rope and a rear traction rope are wound around the side wall of the rotating shaft, and the front traction rope and the rear traction rope are arranged correspondingly, and a front guide component corresponding to the front traction rope and a rear guide component corresponding to the rear traction rope are arranged at the right end of the chassis.

5. The lifting device for substations adapted to different road conditions according to claim 4 is characterized in that: The front guide assembly includes a front concave seat, a front pulley is arranged inside the front concave seat, a front rotating rod is rotatably arranged on the upper end of the front concave seat, the front pulling rope passes through the gap between the front rotating rod and the front pulley and extends to the outside of the chassis, the outer end of the front pulling rope is connected to a front blocking member, and the maximum cross-sectional diameter of the front blocking member is larger than the gap between the front pulley and the front rotating rod.

6. The lifting device for substations adapted to different road conditions according to claim 4 is characterized in that: The rear guide assembly includes a rear concave seat, a rear pulley is arranged inside the rear concave seat, a rear rotating rod is rotatably arranged on the upper end of the rear concave seat, the rear pulling rope passes through the gap between the rear rotating rod and the rear pulley and extends to the outside of the chassis, the outer end of the rear pulling rope is connected to a rear blocking member, and the maximum cross-sectional diameter of the rear blocking member is larger than the gap between the rear pulley and the rear rotating rod.

7. The lifting device for substations adapted to different road conditions according to claim 3 is characterized in that: The left supporting assembly includes a left front support ear and a left rear support ear fixedly connected to the left end of the chassis, the plate surfaces of the left front support ear and the left rear support ear are provided with threaded holes, a left screw rod is threadedly connected inside the threaded hole, a left supporting plate is fixedly provided at the lower end of the left screw rod, and a left through hole for driving the left screw rod to rotate is provided at the upper end of the left screw rod.

8. The lifting device for substations adapted to different road conditions according to claim 3 is characterized in that: The right supporting assembly includes a right front support ear and a right rear support ear fixedly connected to the right end of the chassis, the plate surfaces of the right front support ear and the right rear support ear are provided with threaded holes, a right screw rod is threadedly connected inside the threaded hole, a right supporting plate is fixedly provided at the lower end of the right screw rod, and a right through hole for driving the right screw rod to rotate is provided at the upper end of the right screw rod.

9. The lifting device for substations adapted to different road conditions according to claim 1 is characterized in that: The connection component includes a card holder arranged below the right end of the chassis, the interior of the card holder is detachably connected with a connection plate, the card holder includes a front L-shaped ear and a rear L-shaped ear, and one end of the connection plate is provided with a folded edge portion.

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