Cover plate installation auxiliary device for transformer substation cable trench construction and method thereof

Abstract

The invention discloses a transformer substation cable trench construction cover plate installation auxiliary device and a method thereof.The transformer substation cable trench construction cover plate installation auxiliary device comprises a cable trench, a cover plate and a rack, a lifting conveyor is installed above the rack, a conveying seat is installed at the position, located on the rear side of the lifting conveyor, above the rack, and a fixing plate is connected to the rear side of the conveying seat; the tops of the fixed plates are integrally connected with a top plate, the left side and the right side of each fixed plate are each provided with a movable plate, and the number of the fixed plates is two, and the number of the movable plates is two. By arranging the first supporting mechanism and the second supporting mechanism, the automatic laying function of the cover plate can be achieved, manual carrying and adjustment are not needed in the laying process, clamping blocks on the front side and the rear side of the cover plate are inserted into a cable trench to support the cover plate to fall on the upper surface of the cable trench, and noise in the laying process of the cover plate is reduced; and by arranging a clamping air cylinder, a clamping block and a second ball, the effect of pre-centering treatment on the cover plate can be achieved, and it can be ensured that the cover plate stably falls on the upper surface of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of transformer substation construction engineering, in particular to a cover plate installation auxiliary device and method for transformer substation cable trench construction. Background Art

[0002] A cable trench refers to an underground channel used for laying cables and with an open cover. Since the cables in substations are distributed over a wide area, the construction of cable trenches is an indispensable part of substation construction projects. At present, the covers used for cable trenches in substation projects are mostly composite cable trench covers made of cement, supplemented with fine bone, glass fiber, minerals and modifiers. Compared with traditional cast iron or concrete covers, this cover has the characteristics of light weight, high strength, good corrosion resistance and flame retardancy, and long service life. This cover is in the shape of a rectangular plate with a grille at the bottom. The cable trench is covered by several covers laid tightly.

[0003] At present, the laying of cover plates on cable trenches in substation projects is usually carried out by crane or manually, and the cover plates are transferred to the cable trench one by one, and then the gaps between the cover plates are manually adjusted so that several cover plates are laid tightly on the cable trench.

[0004] However, the composite cable trench cover is heavy and the labor burden of manual handling is too great. If hoisting is used, not only does it require manual hoisting and loading and unloading of the cover, but it is also unsafe. There is a lack of time-saving and labor-saving cover laying auxiliary equipment, and the cover cannot be laid automatically and accurately. Summary of the invention

[0005] The object of the present invention is to provide a cover plate installation auxiliary device and method for substation cable trench construction to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cover plate installation auxiliary device for cable trench construction of a substation and a method thereof, comprising a cable trench, a cover plate and a frame, a lifting conveyor is installed above the frame, a conveying seat is installed above the frame at the rear side of the lifting conveyor, a fixed plate is connected to the rear side of the conveying seat, a top plate is integrally connected to the top of the fixed plate, movable plates are arranged on the left and right sides of the fixed plate, the number of the fixed plate and the movable plate is two, and the two movable plates and the two fixed plates are alternately arranged to surround to form a rectangular cavity, an opening is opened through the middle of the fixed plate at the front side, a lifting slot is opened through the middle of the fixed plate, a lifting plate is arranged inside the lifting slot, a first supporting mechanism is installed inside the lifting plate, a second supporting mechanism is installed in the middle of the inner wall of the movable plate, pulleys are connected to the bottom of the frame and the movable plate, an adjusting rod is opened through the inside of the fixed plate, and a controller is installed on the frame; The first support rod mechanism and the second support mechanism both include a lifting cylinder, a lifting seat is installed on the moving part of the lifting cylinder, a clamping cylinder is installed on the upper surface of the lifting seat, the telescopic end of the clamping cylinder is connected to a clamping block, a second groove is opened on the upper surface of the clamping block, and a second ball is arranged inside the second groove.

[0007] Preferably, the clamping block is in the shape of a rectangular block with an L-shaped cross-section, the clamping block is connected to the telescopic end of the clamping cylinder, the clamping block slides on the upper surface of the lifting seat, and the second ball is clamped in the second groove to form a rolling connection with the clamping block.

[0008] Preferably, a conveyor belt is provided inside the lifting conveyor, and positioning protrusions are provided on the upper surface of the conveyor belt. The positioning protrusions are cylindrical, and there are several positioning protrusions which are arranged equidistantly.

[0009] Preferably, a conveying roller is installed inside the conveying seat, and a propulsion mechanism is installed on the top of the inner cavity of the conveying seat. The conveying seat is in the shape of a rectangular box with a hollow interior and connected front and back sides. The conveying seat is welded and fixed to a fixed plate on the front side, and the inner cavity of the conveying seat is connected to an opening.

[0010] Preferably, the propulsion mechanism includes a propulsion cylinder, a propulsion seat is connected to the bottom of the moving part of the propulsion cylinder, a steering motor is installed on one side of the propulsion seat, and a push plate is installed on the other side of the propulsion seat. The push plate is connected to the shaft end of the steering motor, and the push plate is rotatably connected to the propulsion seat through the steering motor.

[0011] Preferably, screw holes are formed through the movable plate near the front and rear edges, a first groove is formed on the inner wall of the bottom of the movable plate, a first ball is arranged inside the first groove, a clamping block is connected to the top of the movable plate, and the first ball is clamped in the first groove to form a rolling connection with the movable plate.

[0012] Preferably, the top plate has a card slot at its bottom near the left and right edges, the card block is integrally connected to the movable plate, the card block is stuck in the card slot, and the movable plate is slidably connected to the top plate via the card block.

[0013] Preferably, a hydraulic telescopic rod is installed on the outer wall of the fixed plate, the lifting plate is in the shape of a rectangular plate with an inverted L-shaped cross-section, the width of the lifting plate is adapted to the width of the inner wall of the lifting slot, the lifting plate is clamped in the lifting slot to form a sliding connection with the fixed plate, and the telescopic end of the hydraulic telescopic rod is connected to the lifting plate.

[0014] Preferably, threads are provided on the outer surfaces of both ends of the adjusting rod, a bearing is connected between the middle part of the adjusting rod and the fixed plate, there are two adjusting rods, which respectively pass through the two fixed plates, one end of the adjusting rod on the front side is connected to a wheel disk, and the ends of the two adjusting rods close to the wheel disk are both provided with a transmission wheel, and a transmission belt is connected between the two transmission wheels. The thread directions of the two ends of the adjusting rod are opposite, the middle part of the adjusting rod is rotatably connected with the fixed plate via the bearing, the two ends of the adjusting rod are inserted into the screw holes to form a threaded connection with the two movable plates, and the two adjusting rods are transmission connected through the transmission wheel and the transmission belt.

[0015] A method for using a cover plate installation auxiliary device for substation cable trench construction, comprising the following steps: S1: Place the rack on the cable trench, with the two movable plates on both sides of the cable trench respectively. Rotate the wheel, which drives the front adjustment rod to rotate. The adjustment rod drives the front transmission wheel to rotate. The transmission wheel drives the rear transmission wheel to rotate via the transmission belt. The rear transmission wheel drives the rear adjustment rod to rotate synchronously. S2: The two adjusting rods rotate and drive the two movable plates to move through the threads. The threads at both ends of the adjusting rods in opposite directions drive the two movable plates to move closer to each other, and the clamping block slides in the clamping groove until the first balls on the inner sides of the two movable plates contact the side walls on both sides of the cable trench. S3: Push the rack to move toward the fixed plate, so that the rack and the movable plate move to a designated position above the cable trench through the pulley at the bottom; S4: Use a forklift to transport the cover plate to the front side of the lifting conveyor, lift the rear side of the cover plate so that it is tilted and placed on the conveyor belt, and insert the positioning protrusion into the gap of the grille at the bottom of the cover plate to limit the movement of the cover plate relative to the conveyor belt under the influence of gravity; S5: The cover plate is lifted and transported to the conveying seat by means of a conveyor belt, and the cover plate is transferred from the conveyor belt to a conveying roller, and then the conveying roller conveys it into the opening; S6: The propulsion motor drives the push plate to rotate, so that the push plate rotates from a horizontal state around the axis of the propulsion motor shaft end to a vertical state, and the propulsion cylinder drives the propulsion seat to move toward the opening, and the propulsion seat drives the push plate to move, so that the push plate pushes the cover plate through the opening and falls on the first support mechanism and the second support mechanism; S7: The clamping cylinders in the first supporting mechanism and the second supporting mechanism are extended to a fixed length, and the clamping cylinders push the clamping blocks to clamp the side walls around the cover plate. The bottom of the cover plate contacts the second ball bearing, and the ball bearing moves relative to the clamping blocks, so that the four clamping blocks clamp the cover plate in the center; S8: The lifting cylinders in the first supporting mechanism and the second supporting mechanism are started, and the clamping cylinder and the clamping block are driven to move downward through the lifting seat, and the clamping block clamps the cover plate downward until the lifting cylinder drops to the lowest point, the clamping cylinder of the second supporting mechanism is retracted, and the lifting cylinder rises and resets; S9: The hydraulic telescopic rod contracts to pull the lifting plate downward in the lifting slot, and the lifting plate drives the first supporting mechanism to descend until the clamping block on the first supporting mechanism is inserted into the cable trench, and the height of the clamping block is lower than the height of the upper surface of the cable trench. At this time, the cover plate falls on the upper surface of the cable trench; S10: The clamping cylinder in the first supporting mechanism at the rear side of the cover plate contracts and rises in coordination with the lifting cylinder, so that the clamping block is at the rear side of the cover plate. The clamping cylinder then extends and uses the clamping block to push the cover plate forward, contacting with the previous adjacent cover plate to complete tight paving.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The cover plate installation auxiliary device and method for the construction of the cable trench of the substation are provided with a first supporting mechanism and a second supporting mechanism. The cover plate falling on the first supporting mechanism and the second supporting mechanism is clamped by the clamping block pushed by the extension of the clamping cylinder to clamp the side walls around the cover plate. The lifting cylinder is started in coordination with the lifting cylinder, and the clamping cylinder and the clamping block are driven to move downward through the lifting seat. The clamping block clamps the cover plate and moves it downward. The lifting plate is then pulled downward in the lifting groove by the contraction of the hydraulic telescopic rod. The lifting plate drives the first supporting mechanism to descend, and the clamping block is inserted into the cable trench to support the cover plate to fall on the upper surface of the cable trench. The cover plate is then pushed forward by the clamping block on the rear side to contact with the previous adjacent cover plate to complete close laying, thereby realizing the automatic laying function of the cover plate. No manual handling and adjustment are required during the laying process, and the clamping blocks on the front and rear sides of the cover plate are inserted into the cable trench to support the cover plate to fall on the upper surface of the cable trench, thereby reducing the noise during the laying process of the cover plate.

[0017] 2. The cover plate installation auxiliary device and method for the construction of the cable trench of the substation are provided with a clamping cylinder, a clamping block and a second ball. The clamping cylinder in the first support mechanism and the second support mechanism is extended to a fixed length. The clamping cylinder pushes the four clamping blocks to clamp the side walls of the cover plate respectively. The bottom of the cover plate contacts the second ball. When the clamping block is pushed, the bottom of the cover plate moves relative to the clamping block with the help of the ball, so that the four clamping blocks clamp the cover plate to center, thereby achieving the effect of pre-centering the cover plate, which can ensure that the cover plate falls stably on the upper surface of the cable.

[0018] 3. The cover plate installation auxiliary device and method for the construction of the cable trench of the substation are provided with a conveyor belt, a positioning protrusion, a conveying roller and a pushing mechanism. The cover plate is placed on the conveyor belt, and the positioning protrusion is inserted into the gap of the grid at the bottom of the cover plate to limit the movement of the cover plate relative to the conveyor belt under the influence of gravity. The cover plate can be stably lifted on the conveyor belt, and then the conveying roller drives the cover plate to move horizontally. The push plate pushes the cover plate to the inner side of the movable plate and the fixed plate, and the cover plate can be automatically conveyed from the ground to the first supporting mechanism and the second supporting mechanism for laying. The conveyor belt, the conveying roller and the pushing mechanism replace the manual handling or crane hoisting method in the traditional laying process, making the laying of the cover plate more labor-saving and faster.

[0019] 4. The cover plate installation auxiliary device and method for the construction of the cable trench of the substation are provided with a movable plate and an adjusting rod. By rotating the wheel, the wheel drives an adjusting rod to rotate, and the transmission wheel of the adjusting rod rotates. The transmission wheel drives another transmission wheel to rotate via a transmission belt, and the other transmission wheel drives another adjusting rod to rotate synchronously. The two adjusting rods rotate and drive the two movable plates to approach each other through threads, so as to achieve the effect of adjusting the spacing between the movable plates, so that the device can be applied to cable trenches of different widths and cover plate laying, thereby increasing the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front cutaway structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the side cutaway structure of the present invention; Figure 4 It is a schematic diagram of the connection structure between the movable plate and the fixed plate of the present invention; Figure 5 It is a schematic structural diagram of the first supporting mechanism of the present invention; Figure 6 It is a schematic diagram of the propulsion mechanism structure of the present invention.

[0021] In the figure: 1, cable trench; 2, cover plate; 3, frame; 4, lifting conveyor; 41, conveyor belt; 42, positioning convex block; 5, conveying seat; 51, conveying roller; 52, propulsion mechanism; 521, propulsion cylinder; 522, propulsion seat; 523, steering motor; 524, push plate; 6, fixed plate; 61, opening; 7, top plate; 71, card slot; 8, movable plate; 81, screw hole; 82, first groove; 83, first ball; 84, card block ; 9. lifting slot; 10. lifting plate; 101. hydraulic telescopic rod; 11. first supporting mechanism; 111. lifting cylinder; 112. lifting seat; 113. clamping cylinder; 114. clamping block; 115. second groove; 116. second ball; 12. second supporting mechanism; 13. pulley; 14. adjusting rod; 141. thread; 142. bearing; 143. wheel; 144. transmission wheel; 145. transmission belt; 15. controller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figures 1 to 6As shown, the cover plate installation auxiliary device and method for substation cable trench construction in this embodiment include a cable trench 1, a cover plate 2 and a frame 3, a lifting conveyor 4 is installed above the frame 3, the lifting conveyor 4 is inclined, and the rear side wall of the lifting conveyor 4 is connected to the conveying seat 5, and a conveying seat 5 is installed above the frame 3 at the rear side of the lifting conveyor 4, and a fixed plate 6 is connected to the rear side of the conveying seat 5, and a top plate 7 is integrally connected to the top of the fixed plate 6. Movable plates 8 are arranged on the left and right sides of the fixed plate 6, and the number of fixed plates 6 and movable plates 8 is two, and the two movable plates 8 are alternately arranged around the two fixed plates 6 to form a rectangular cavity, the fixed plate 6 is integrally connected to the top plate 7, and the movable plate 8 is slidably connected to the top plate 7, the two fixed plates 6 are arranged front and back, and the two movable plates 8 are arranged left and right, and the middle part of the fixed plate 6 on the front side is penetrated by an opening 61, and the opening 61 penetrates a fixed plate 6 on the front side, and the inner cavity of the conveying seat 5 is The opening 61 is connected to the rectangular cavity between the fixed plate 6 and the movable plate 8. A lifting groove 9 is provided in the middle of the fixed plate 6. A lifting plate 10 is provided inside the lifting groove 9. The lifting plate 10 is used to install a first supporting mechanism 11. The first supporting mechanism 11 is installed inside the lifting plate 10. A second supporting mechanism 12 is installed in the middle of the inner wall of the movable plate 8. The first supporting mechanism 11 and the second supporting mechanism 12 respectively support the front and back and the left and right sides of the cover plate 2, and drive the cover plate 2 to fall into the cable trench 1. The frame 3 and the bottom of the movable plate 8 are connected with a pulley 13. The pulley 13 increases the convenience of the device to move, and it is convenient to lay the cover plates 2 one by one on the surface of the long cable trench 1. An adjusting rod 14 is provided inside the fixed plate 6. The adjusting rod 14 is used to adjust the distance between the two movable plates 8. A controller 15 is installed on the frame 3. The controller 15 serves as the main control center of the power equipment in the device. The first support rod mechanism and the second support mechanism 12 both include a lifting cylinder 111. The lifting cylinder 111 of the first support mechanism 11 is installed on the lifting plate 10, and the lifting cylinder 111 of the second support mechanism 12 is installed on the inner wall of the movable plate 8. A lifting seat 112 is installed on the moving part of the lifting cylinder 111, and a clamping cylinder 113 is installed on the upper surface of the lifting seat 112. The clamping cylinder 113 is installed on the lifting seat 112. The actual models of the clamping cylinder 113 and the lifting cylinder 111 are selected according to the actual sizes of the movable plate 8 and the lifting seat 112. The telescopic end of the clamping cylinder 113 is connected with a clamping block 114, which is used for supporting the cover plate 2 to descend and for pushing the clamp plate to center. A second groove 115 is opened on the upper surface of the clamping block 114, and a second ball 116 is arranged inside the second groove 115.

[0026] Specifically, the clamp block 114 is in the shape of a rectangular block with an L-shaped cross section. The clamp block 114 is connected to the telescopic end of the clamping cylinder 113. The clamp block 114 slides on the upper surface of the lifting seat 112. When the cover plate 2 falls on the clamp block 114, the cover plate 2 is supported by the clamp block 114. When the cover plate 2 is pushed onto the clamp block 114 by the propulsion mechanism 52, the four clamping cylinders 113 are all in a semi-extended state. At this time, the distance between the front and rear clamp blocks 114 is less than the length of the cover plate 2, and the distance between the left and right clamp blocks 114 is less than the width of the cover plate 2. When the clamp block 114 clamps the side wall of the cover plate 2 and pushes it to the center, the clamping cylinder 113 is in a fully extended state. When the clamp block 114 contracts and separates from the cover plate 2, the clamping The cylinder 113 is in a fully retracted state to avoid obstruction to the falling of the cover plate 2. The second ball 116 is stuck in the second groove 115 and forms a rolling connection with the clamping block 114. There are several second balls 116, which are equidistantly arranged on the upper surface of the clamping block 114. The top of the second ball 116 contacts the bottom of the cover plate 2. After the clamping cylinder 113 is started, the clamping cylinder 113 pushes the four clamping blocks 114 to clamp the side walls of the cover plate 2 respectively. The bottom of the cover plate 2 contacts the second ball 116. When the clamping block 114 thrusts the bottom of the cover plate 2, the ball moves relative to the clamping block 114, so that the four clamping blocks 114 clamp the cover plate 2 to center it, thereby achieving the effect of pre-centering the cover plate 2.

[0027] Furthermore, a conveyor belt 41 is provided inside the lifting conveyor 4, and a driving device for controlling the operation of the conveyor is also provided below the lifting conveyor 4. Positioning protrusions 42 are provided on the upper surface of the conveyor belt 41. The positioning protrusions 42 are cylindrical. There are several positioning protrusions 42, which are arranged equidistantly. By placing the cover plate 2 on the conveyor belt 41 and inserting the positioning protrusions 42 into the gaps in the bottom grid of the cover plate 2, the movement of the cover plate 2 relative to the conveyor belt 41 due to gravity is restricted, so that the cover plate 2 can be stably lifted on the conveyor belt 41, and the cover plate 2 on the forklift can be transported upward by using the conveyor belt 41, thereby completing the initial automatic transportation of the cover plate 2.

[0028] Furthermore, a plurality of conveying rollers 51 are installed inside the conveying seat 5, and the plurality of conveying rollers 51 are rotatably connected to the conveying seat 5, and adjacent conveying rollers 51 are synchronously rotated by sprockets, and the cover plate 2 is driven to move horizontally in the conveying seat 5 toward the fixed plate 6, so as to complete the secondary automatic conveying of the cover plate 2. A propulsion mechanism 52 is installed on the top of the inner cavity of the conveying seat 5. The conveying seat 5 is in the shape of a rectangular box which is hollow inside and connected on the front and back sides. The conveying seat 5 is welded and fixed to the fixed plate 6 on the front side, and the inner cavity of the conveying seat 5 is connected to the opening 61. The cover plate 2 on the conveyor belt 41 is transferred to the opening 61 by the conveying rollers 51. The height dimension of the inner wall of the conveying seat 5 needs to meet the inclined movement of the cover plate 2 on the conveyor belt 41, that is, during the inclined conveying of the cover plate 2 at the top of the conveyor belt 41, the highest point of the cover plate 2 will not form an obstacle with the height of the conveying seat 5.

[0029] Furthermore, the propulsion mechanism 52 includes a propulsion cylinder 521, which is installed at the top of the inner cavity of the conveying seat 5, and the bottom of the moving part of the propulsion cylinder 521 is connected to the propulsion seat 522. A steering motor 523 is installed on one side of the propulsion seat 522. The steering motor 523 is essentially a motor with a forward and reverse circuit. The steering motor 523 is installed on one side of the propulsion seat 522. The shaft end of the steering motor 523 passes through the propulsion seat 522 and is connected to the push plate 524. A push plate 524 is installed on the other side of the propulsion seat 522. The push plate 524 is connected to the shaft end of the steering motor 523, and the shaft end of the steering motor 523 is connected to the upper half of the push plate 524. The push plate 524 is connected at one-sixth of the section, and is rotationally connected to the propulsion seat 522 through the steering motor 523. When the cover plate 2 is not pushed, the push plate 524 is in a horizontal state, and the bottom of the push plate 524 will not hinder the horizontal transmission of the cover plate 2. When the cover plate 2 needs to be pushed, the steering motor 523 drives the push plate 524 to rotate 90° around the axis of the steering motor 523 shaft end, so that the push plate 524 is in a vertical state. At this time, the longer side of the push plate 524 moves to the bottom to push the front side wall of the cover plate 2, and pushes the cover plate 2 through the opening 61 and falls on the first support mechanism 11 and the second support mechanism 12, completing the third automatic transmission of the cover plate 2.

[0030] Furthermore, screw holes 81 are formed through the movable plate 8 near the front and rear edges, a first groove 82 is formed on the inner wall of the bottom of the movable plate 8, a first ball 83 is arranged inside the first groove 82, a clamping block 84 is connected to the top of the movable plate 8, the first ball 83 is clamped in the first groove 82 to form a rolling connection with the movable plate 8, and after the device is placed on the cable trench 1, the first ball 83 on the inner side of the movable plate 8 contacts the side walls of the cable trench 1 on both sides, and when the device moves, the first ball 83 rotates relative to the side walls of the cable trench 1, which not only reduces the obstruction of the device during movement, but also avoids wear on the inner wall of the movable plate 8.

[0031] Furthermore, a card slot 71 is provided at the bottom of the top plate 7 near the left and right edges. The cross-sections of the card slot 71 and the card block 84 are both T-shaped. The card block 84 is integrally connected with the movable plate 8. The card block 84 is stuck in the card slot 71. The movable plate 8 is slidably connected with the top plate 7 through the card block 84. The card block 84 slides in the card slot 71, and the movable plate 8 slides relative to the top plate 7, so that the spacing between the movable plates 8 can be adjusted.

[0032] Furthermore, a hydraulic telescopic rod 101 is installed on the outer wall of the fixed plate 6, and the hydraulic telescopic rod 101 is installed on the outer wall of the fixed plate 6. The lifting plate 10 is a rectangular plate with an inverted L-shaped cross-section. The width of the lifting plate 10 is adapted to the width of the inner wall of the lifting groove 9. The lifting plate 10 is stuck in the lifting groove 9 and forms a sliding connection with the fixed plate 6. The telescopic end of the hydraulic telescopic rod 101 is connected to the lifting plate 10, and the lifting plate 10 is pulled down in the lifting groove 9 by the contraction of the hydraulic telescopic rod 101. The lifting plate 10 drives the first supporting mechanism 11 to descend until the clamping block 114 on the first supporting mechanism 11 is inserted into the cable trench 1. The height of the clamping block 114 is lower than the height of the upper surface of the cable trench 1, so that the cover plate 2 slowly falls on the upper surface of the cable trench 1, and the clamping blocks 114 on the front and rear sides of the cover plate 2 are inserted into the cable trench 1 to support the cover plate 2 to fall on the upper surface of the cable trench 1, thereby reducing the noise during the laying process of the cover plate 2.

[0033] Furthermore, threads 141 are provided on the outer surfaces of both ends of the adjusting rod 14, a bearing 142 is connected between the middle of the adjusting rod 14 and the fixed plate 6, there are two adjusting rods 14, which respectively penetrate the two fixed plates 6, and the two adjusting rods 14 are respectively used to adjust the front and rear sides of the movable plate 8. A wheel 143 is connected to one end of the adjusting rod 14 on the front side, and a transmission wheel 144 is sleeved on one end of the two adjusting rods 14 close to the wheel 143. A transmission belt 145 is connected between the two transmission wheels 144. The threads 141 at both ends of the adjusting rod 14 are in opposite directions, and the middle part of the adjusting rod 14 is rotatably connected to the fixed plate 6 via the bearing 142. Both ends of the section rod 14 are inserted into the screw holes 81 to form a threaded connection with the two movable plates 8. The two adjusting rods 14 are connected to each other through a transmission wheel 144 and a transmission belt 145. The wheel 143 drives one adjusting rod 14 to rotate, and the transmission wheel 144 of the adjusting rod 14 rotates. The transmission wheel 144 drives another transmission wheel 144 to rotate via the transmission belt 145, and the other transmission wheel 144 drives another adjusting rod 14 to rotate synchronously. The two adjusting rods 14 rotate and drive the two movable plates 8 to approach each other through the thread 141, so as to achieve the effect of adjusting the spacing between the movable plates 8, so that the device can be suitable for laying cable trenches 1 and cover plates 2 of different widths.

[0034] A method for using a cover plate installation auxiliary device for substation cable trench construction, comprising the following steps: S1: Place the rack 3 on the cable trench 1, with the two movable plates 8 on both sides of the cable trench 1, and rotate the wheel 143, which drives the front adjusting rod 14 to rotate, and the adjusting rod 14 drives the front transmission wheel 144 to rotate, and the transmission wheel 144 drives the rear transmission wheel 144 to rotate via the transmission belt 145, and the rear transmission wheel 144 drives the rear adjusting rod 14 to rotate synchronously; S2: The two adjusting rods 14 rotate and drive the two movable plates 8 to move through the threads 141. The threads 141 at both ends of the adjusting rods 14 in opposite directions drive the two movable plates 8 to approach each other, and the clamping block 84 slides in the clamping groove 71 until the first balls 83 on the inner sides of the two movable plates 8 contact the side walls of the cable trench 1. S3: Push the rack 3 to move toward the fixed plate 6, so that the rack 3 and the movable plate 8 move to a designated position above the cable trench 1 through the pulley 13 at the bottom; S4: Use a forklift to transport the cover plate 2 to the front side of the lifting conveyor 4, lift the rear side of the cover plate 2 so that the rear side is tilted and placed on the conveyor belt 41, and insert the positioning protrusion 42 into the gap of the bottom grid of the cover plate 2 to limit the movement of the cover plate 2 relative to the conveyor belt 41 under the influence of gravity; S5: The cover plate 2 is lifted and transported to the conveying seat 5 by the conveying belt 41. The cover plate 2 is transferred from the conveying belt 41 to the conveying roller 51, and then the conveying roller 51 conveys it into the opening 61; S6: The propulsion motor drives the push plate 524 to rotate, so that the push plate 524 rotates from a horizontal state around the axis of the propulsion motor shaft end to a vertical state, and the propulsion cylinder 521 drives the propulsion seat 522 to move toward the opening 61, and the propulsion seat 522 drives the push plate 524 to move, so that the push plate 524 pushes the cover plate 2 through the opening 61 and falls on the first support mechanism 11 and the second support mechanism 12; S7: The clamping cylinders 113 in the first supporting mechanism 11 and the second supporting mechanism 12 are extended to a fixed length, and the clamping cylinders 113 push the clamping blocks 114 to clamp the side walls of the cover plate 2. The bottom of the cover plate 2 contacts the second ball bearings 116, and the ball bearings move relative to the clamping blocks 114, so that the four clamping blocks 114 clamp the cover plate 2 in the center. S8: The lifting cylinder 111 in the first supporting mechanism 11 and the second supporting mechanism 12 is started, and the clamping cylinder 113 and the clamping block 114 are driven to move downward through the lifting seat 112, and the clamping block 114 clamps the cover plate 2 and moves downward until the lifting cylinder 111 drops to the lowest point, the clamping cylinder 113 of the second supporting mechanism 12 contracts, and the lifting cylinder 111 rises and resets; S9: The hydraulic telescopic rod 101 contracts to pull the lifting plate 10 downward in the lifting slot 9, and the lifting plate 10 drives the first supporting mechanism 11 to descend until the clamping block 114 on the first supporting mechanism 11 is inserted into the cable trench 1. The height of the clamping block 114 is lower than the height of the upper surface of the cable trench 1. At this time, the cover plate 2 falls on the upper surface of the cable trench 1. S10: The clamping cylinder 113 in the first supporting mechanism 11 at the rear side of the cover plate 2 contracts and cooperates with the lifting cylinder 111 to rise, so that the clamping block 114 is at the rear side of the cover plate 2. The clamping cylinder 113 then extends and uses the clamping block 114 to push the cover plate 2 forward, making contact with the previous adjacent cover plate 2 to complete tight paving.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cover plate installation auxiliary device for substation cable trench construction, comprising a cable trench (1), a cover plate (2) and a frame (3), characterized in that: A lifting conveyor (4) is installed above the frame (3); a conveying seat (5) is installed above the frame (3) at the rear side of the lifting conveyor (4); a fixed plate (6) is connected to the rear side of the conveying seat (5); a top plate (7) is integrally connected to the top of the fixed plate (6); movable plates (8) are arranged on the left and right sides of the fixed plate (6); the number of the fixed plates (6) and the movable plates (8) are both two, and the two movable plates (8) and the two fixed plates (6) are alternately arranged to surround and form a rectangular cavity; the fixed plate at the front side (6) having an opening (61) extending through the middle, a lifting groove (9) extending through the middle of the fixed plate (6), a lifting plate (10) being arranged inside the lifting groove (9), a first supporting mechanism (11) being installed inside the lifting plate (10), a second supporting mechanism (12) being installed in the middle of the inner wall of the movable plate (8), a pulley (13) being connected to the bottom of the frame (3) and the movable plate (8), an adjusting rod (14) being arranged inside the fixed plate (6), and a controller (15) being installed on the frame (3); The first support rod mechanism and the second support mechanism (12) both comprise a lifting cylinder (111); a lifting seat (112) is mounted on a moving part of the lifting cylinder (111); a clamping cylinder (113) is mounted on an upper surface of the lifting seat (112); a clamping block (114) is connected to a telescopic end of the clamping cylinder (113); a second groove (115) is formed on an upper surface of the clamping block (114); a second ball (116) is disposed inside the second groove (115).

2. The cover plate installation auxiliary device for substation cable trench construction according to claim 1 is characterized in that: The clamping block (114) is in the shape of a rectangular block with an L-shaped cross section. The clamping block (114) is connected to the telescopic end of the clamping cylinder (113). The clamping block (114) slides on the upper surface of the lifting seat (112). The second ball (116) is clamped in the second groove (115) to form a rolling connection with the clamping block (114).

3. The cover plate installation auxiliary device for substation cable trench construction according to claim 1 is characterized in that: A conveyor belt (41) is arranged inside the lifting conveyor (4), and a positioning protrusion (42) is arranged on the upper surface of the conveyor belt (41). The positioning protrusion (42) is cylindrical, and there are a plurality of positioning protrusions (42) arranged at equal distances.

4. The cover plate installation auxiliary device for substation cable trench construction according to claim 1 is characterized in that: A conveying roller (51) is installed inside the conveying seat (5), and a propulsion mechanism (52) is installed on the top of the inner cavity of the conveying seat (5). The conveying seat (5) is in the shape of a rectangular box with a hollow interior and connected front and rear sides. The conveying seat (5) is welded and fixed to a fixing plate (6) on the front side, and the inner cavity of the conveying seat (5) is connected to an opening (61).

5. The cover plate installation auxiliary device for substation cable trench construction according to claim 4 is characterized in that: The propulsion mechanism (52) comprises a propulsion cylinder (521), the bottom of a moving part of the propulsion cylinder (521) is connected to a propulsion seat (522), a steering motor (523) is installed on one side of the propulsion seat (522), and a push plate (524) is installed on the other side of the propulsion seat (522), the push plate (524) is connected to the shaft end of the steering motor (523), and the push plate (524) is rotationally connected to the propulsion seat (522) via the steering motor (523).

6. The cover plate installation auxiliary device for substation cable trench construction according to claim 1 is characterized in that: The movable plate (8) is provided with screw holes (81) near the front and rear edges, the bottom inner wall of the movable plate (8) is provided with a first groove (82), a first ball (83) is arranged inside the first groove (82), and a clamping block (84) is connected to the top of the movable plate (8), the first ball (83) is clamped in the first groove (82) to form a rolling connection with the movable plate (8).

7. The cover plate installation auxiliary device for substation cable trench construction according to claim 6 is characterized in that: The bottom of the top plate (7) is provided with a clamping groove (71) near the left and right edges. The clamping block (84) is integrally connected with the movable plate (8). The clamping block (84) is clamped in the clamping groove (71). The movable plate (8) is slidably connected with the top plate (7) via the clamping block (84).

8. The cover plate installation auxiliary device for substation cable trench construction according to claim 1 is characterized by: A hydraulic telescopic rod (101) is installed on the outer wall of the fixed plate (6); the lifting plate (10) is in the shape of a rectangular plate with an inverted L-shaped cross section; the width of the lifting plate (10) is matched with the width of the inner wall of the lifting groove (9); the lifting plate (10) is clamped in the lifting groove (9) to form a sliding connection with the fixed plate (6); and the telescopic end of the hydraulic telescopic rod (101) is connected to the lifting plate (10).

9. The cover plate installation auxiliary device for substation cable trench construction according to claim 1 is characterized in that: The outer surfaces of both ends of the adjusting rod (14) are provided with threads (141), a bearing (142) is connected between the middle of the adjusting rod (14) and the fixed plate (6), there are two adjusting rods (14), which respectively penetrate the two fixed plates (6), one end of the adjusting rod (14) at the front side is connected with a wheel disc (143), one end of the two adjusting rods (14) close to the wheel disc (143) is sleeved with a transmission wheel (144), a transmission belt (145) is connected between the two transmission wheels (144), the threads (141) at both ends of the adjusting rod (14) are in opposite directions, the middle of the adjusting rod (14) is rotatably connected to the fixed plate (6) via the bearing (142), the two ends of the adjusting rod (14) are inserted into the screw holes (81) and are threadedly connected to the two movable plates (8), and the two adjusting rods (14) are transmission-connected via the transmission wheel (144) and the transmission belt (145).

10. A method for using a cover plate installation auxiliary device for substation cable trench construction, characterized in that: The following steps are involved: S1: placing the frame (3) on the cable trench (1), with the two movable plates (8) respectively located on both sides of the cable trench (1), rotating the wheel disc (143), the wheel disc (143) driving the front adjustment rod (14) to rotate, the adjustment rod (14) driving the front transmission wheel (144) to rotate, the transmission wheel (144) driving the rear transmission wheel (144) to rotate via the transmission belt (145), and the rear transmission wheel (144) driving the rear adjustment rod (14) to rotate synchronously; S2: The two adjusting rods (14) rotate through the threads (141) to drive the two movable plates (8) to move, and the threads (141) at both ends of the adjusting rod (14) in opposite directions drive the two movable plates (8) to move closer to each other, and the clamping block (84) slides in the clamping groove (71) until the first balls (83) on the inner sides of the two movable plates (8) contact the side walls of the cable trench (1); S3: pushing the frame (3) to move in a direction close to the fixed plate (6), so that the frame (3) and the movable plate (8) move to a designated position above the cable trench (1) via the pulley (13) at the bottom; S4: using a forklift to transport the cover plate (2) to the front side of the lifting conveyor (4), lifting the rear side of the cover plate (2) so that the rear side is tilted and placed on the conveyor belt (41), and inserting the positioning protrusion (42) into the gap of the bottom grid of the cover plate (2) to limit the movement of the cover plate (2) relative to the conveyor belt (41) under the influence of gravity; S5: The cover plate (2) is lifted and transported to the conveying seat (5) by means of the conveying belt (41); the cover plate (2) is transferred from the conveying belt (41) to the conveying roller (51), and then the conveying roller (51) conveys it into the opening (61); S6: The propulsion motor drives the push plate (524) to rotate, so that the push plate (524) rotates from a horizontal state around the axis of the shaft end of the propulsion motor to a vertical state, and the propulsion cylinder (521) drives the propulsion seat (522) to move toward the opening (61), and the propulsion seat (522) drives the push plate (524) to move, so that the push plate (524) pushes the cover plate (2) through the opening (61) and falls on the first support mechanism (11) and the second support mechanism (12); S7: The clamping cylinders (113) in the first supporting mechanism (11) and the second supporting mechanism (12) are extended to a fixed length, and the clamping cylinders (113) push the clamping blocks (114) to clamp the side walls of the cover plate (2). The bottom of the cover plate (2) contacts the second ball bearings (116), and the ball bearings move relative to the clamping blocks (114), so that the four clamping blocks (114) clamp the cover plate (2) in a centered manner; S8: The lifting cylinder (111) in the first supporting mechanism (11) and the second supporting mechanism (12) is started, and the clamping cylinder (113) and the clamping block (114) are driven to move downward via the lifting seat (112), and the clamping block (114) clamps the cover plate (2) and moves downward until the lifting cylinder (111) descends to the lowest point, and the clamping cylinder (113) of the second supporting mechanism (12) is retracted and the lifting cylinder (111) is raised and reset; S9: the hydraulic telescopic rod (101) contracts to pull the lifting plate (10) downward in the lifting groove (9), and the lifting plate (10) drives the first supporting mechanism (11) to descend until the clamping block (114) on the first supporting mechanism (11) is inserted into the cable trench (1), and the height of the clamping block (114) is lower than the height of the upper surface of the cable trench (1). At this time, the cover plate (2) falls on the upper surface of the cable trench (1); S10: The clamping cylinder (113) in the first supporting mechanism (11) at the rear side of the cover plate (2) contracts and cooperates with the lifting cylinder (111) to rise, so that the clamping block (114) is located at the rear side of the cover plate (2). The clamping cylinder (113) then extends and uses the clamping block (114) to push the cover plate (2) forward, so that it contacts the previous adjacent cover plate (2) to complete the tight laying.

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