Backfilled soil sorting device for electric power engineering lightning protection grounding body construction

Abstract

The backfill soil sorting device for electric power engineering lightning protection grounding body construction comprises a rack, the rack is provided with a vibration motor, a screen and a material pulling mechanism, the screen is provided with two layers of meshes, the distance between the two layers of meshes is larger than one time of the aperture of the screen, and grid side lines of the two layers of meshes are relatively inclined. The centers of the grids of the two layers of meshes are mutually staggered; the screen is obliquely arranged, and lower edge plates are arranged on the two bevel edge sides of the screen respectively; the material pulling mechanism comprises a material pulling assembly and a reciprocating driving part used for driving the material pulling assembly to do horizontal reciprocating motion, the material pulling assembly comprises a mounting base and a plurality of damping rollers, the mounting base is provided with a rotating driving part used for driving the damping rollers to rotate synchronously, and the rotating directions of every two adjacent damping rollers are opposite. Every two adjacent damping rollers can roll rod-shaped materials inserted into the screen. According to the application, the situation that the lightning protection grounding effect is affected due to the fact that rod-shaped materials such as deadwood and root hair are mixed in the lightning protection grounding backfill soil can be reduced.

Description

Technical Field

[0001] The present application relates to the field of engineering construction auxiliary equipment, and in particular to a backfill soil sorting device for the construction of lightning protection grounding bodies for power engineering projects. Background Art

[0002] The power system grounding project is a basic overvoltage protection device used to prevent power system operation overvoltage and external lightning overvoltage from causing damage to power equipment and personnel. Good grounding devices and smaller grounding resistance are effective measures to limit power system overvoltage. In order to control the grounding resistance, the soil used for lightning protection grounding backfill needs to be screened to remove larger stones, construction waste, etc. in the soil to reduce the air gap in the soil and the air gap between the soil and the grounding body.

[0003] The backfill soil may contain a large amount of plant dead branches and roots. In the process of screening the soil with a sieve, plant dead branches and roots sometimes pass through the sieve holes of the sieve and mix into the backfill soil. Rod-shaped materials such as plant dead branches and roots will affect the density of the soil backfill and have an adverse effect on the grounding effect of the lightning protection grounding electrode. Summary of the invention

[0004] In order to reduce the mixing of dead branches, roots and other rod-shaped materials in the backfill soil of lightning protection grounding, which affects the lightning protection grounding effect, the present application provides a backfill soil sorting device for the construction of lightning protection grounding bodies for power engineering.

[0005] The present application provides a backfill soil sorting device for the construction of lightning protection grounding bodies for power engineering, which adopts the following technical solutions: A backfill soil sorting device for the construction of lightning protection grounding bodies in power engineering projects, comprising a frame, the frame being provided with a vibration motor, the frame being provided with a screen and a material pulling mechanism, the screen having two layers of meshes, the spacing between the two layers of the meshes being greater than one time the aperture of the screen, the grid edges of the two layers of the meshes being relatively inclined, and the centers of the grids of the two layers of the meshes being staggered with each other; the screen being inclined, the two oblique sides of the screen being provided with lower side plates respectively, the frame being provided with a lower movable baffle, the lower movable baffle being located on the lower side of the screen, and the lower movable baffle being used to shield the material on the surface of the screen; the material pulling mechanism The structure includes a material pulling component and a reciprocating driving member for driving the material pulling component to move horizontally back and forth. The material pulling component includes a mounting seat and a plurality of damping rollers. The damping rollers are arranged vertically or obliquely. The plurality of damping rollers are sequentially rotated and mounted on the mounting seat along a straight line. The mounting seat is provided with a rotating driving member for driving the plurality of damping rollers to rotate synchronously. The rotation directions of two adjacent damping rollers are opposite. The two adjacent damping rollers can roll and feed the rod-shaped materials inserted on the screen. The mounting seat is provided with a material receiving plate, and the material receiving plate is used to receive the rod-shaped materials rolled by the two adjacent damping rollers.

[0006] By adopting the above technical solution, when the backfill soil sorting device is used for soil sorting, the soil is poured onto the screen. With the vibration of the vibration motor, the soil that meets the particle size standard passes through the two layers of the screen and is screened off by the screen, while the gravel, soil blocks, etc. that are larger than the screen aperture are retained on the screen by the lower side plate and the lower movable baffle. Subsequently, the lower baffle plate is removed to discharge the gravel, soil blocks, etc. on the screen from the lower side of the screen. In the process of using the screen to screen the soil, rod-shaped materials such as branches and roots carried in the soil will be inserted into the mesh of the screen. Since the mesh holes of the upper and lower layers of the screen are staggered and the edge lines of the two layers of mesh are relatively inclined, it is difficult for the rod-shaped materials to pass through the two layers of mesh at the same time, so that the rod-shaped materials inserted into the screen remain upright and plugged into the screen. In this case, after the gravel and soil blocks on the screen are discharged, the pulling mechanism is used to translate along the surface of the screen, so that the damping roller of the pulling mechanism uses friction damping to roll the rod-shaped materials inserted on the screen to the receiving plate to remove the rod-shaped materials on the screen, thereby achieving the purpose of separating materials such as branches and roots in the soil, reducing the mixing of branches and roots in the soil into the backfill soil, and reducing the situation where the density of the backfill soil is affected by branches and roots, so as to ensure the lightning protection and grounding of the backfill soil.

[0007] Optionally, the damping roller is arranged at an angle, the material receiving plate is located on the side of the damping roller that is inclined upward, and the edge of the material receiving plate close to the damping roller is located below the lower end surface of the damping roller.

[0008] By adopting the above technical solution, the damping roller is tilted so that the lower end surface of the damping roller is tilted, and the lower end surface of the damping roller has a larger distribution range along the height direction, so that the receiving plate can be horizontally staggered with the lower end surface of the damping roller during installation.

[0009] Optionally, the material receiving plate gradually tilts downward in a direction away from the damping roller, and side panels are respectively provided on two opposite sides of the material receiving plate, and a limit plate is hingedly connected between the two side panels, and the lower edge of the limit plate is lower than the lower side of the material receiving plate. The frame is provided with a blocking rod, and the blocking rod is used to force the limit plate to flip in a horizontal direction. The side plate is provided with an elastic reset member, and the elastic reset member is used to force the limit plate to abut against the lower side of the material receiving plate.

[0010] By adopting the above technical solution, when the damping roller rolls the rod-shaped material to the receiving plate, the rod-shaped material slides away from the damping roller along the surface of the receiving plate and accumulates in the angle area between the limit plate and the receiving plate. When the pulling mechanism moves away from the screen and touches the blocking rod, the blocking rod forces the limit plate to rotate horizontally, causing the rod-shaped material on the receiving plate to slide off the receiving plate and be unloaded.

[0011] Optionally, a roller-material gap is formed between two adjacent damping rollers, and the roller-material gap is divided into a material gathering gap and a material rejection gap according to the rolling direction, wherein the rolling direction of the material gathering gap is toward the material receiving plate, and the rolling direction of the material rejection gap is away from the material receiving plate; the mounting seat is provided with a plurality of guide members, the guide members are located on the side of the damping roller away from the material receiving plate, the guide members are used to shield the material rejection gap, the guide members have an outwardly convex guide surface, the guide surface is away from the damping roller, and the guide surface is used to guide the rod-shaped material on the screen to the material gathering gap.

[0012] By adopting the above technical scheme, the material gathering gap between adjacent damping rollers can roll the rod-shaped materials, while the material rejection gap cannot roll the rod-shaped materials. By setting the guide member, the guide member guides the rod-shaped materials inserted on the screen to the material gathering gap, thereby reducing the situation where the rod-shaped materials inserted on the screen fall into the material rejection gap, and the material pulling mechanism can pull out the rod-shaped materials on the screen as much as possible.

[0013] Optionally, the frame is provided with a screening grille, the screening grille is inclined, the screening grille is located above the screen, the two oblique sides of the screening grille are respectively provided with upper side plates, the frame is provided with an upper movable baffle, the upper movable baffle is located on the lower side of the screening grille, and the upper movable baffle is used to shield the material on the surface of the screening grille.

[0014] By adopting the above technical solution, the screening grid can screen out larger-sized stones, concrete blocks and other materials in the soil, and reduce the impact of larger-sized stones, concrete blocks and other materials on the screen when they fall on the screen.

[0015] Optionally, the frame is provided with an upper material guide chute and a lower material guide chute, the upper material guide chute is used to receive the material on the screening grid, and the lower material guide chute is used to receive the material on the screen; the material guiding directions of the upper material guide chute and the lower material guide chute are opposite.

[0016] By adopting the above technical scheme, the material on the screening grille is discharged through the upper guide trough, and the material on the screen is discharged through the lower guide trough. The upper guide trough and the lower guide trough can guide the material to a position farther away from the center of the backfill soil sorting device, so that the material discharged from the screening grille and the material discharged from the screen are as far away as possible from the soil screened by the screen, so that the soil screened by the screen has a larger stacking space.

[0017] Optionally, the frame is provided with walking wheels.

[0018] By adopting the above technical solution, as the space below the backfill soil sorting device is gradually occupied by the soil screened by the screen, the backfill soil sorting device is moved to an open space aside by using the walking wheels, so that the backfill soil sorting device can continue to screen the soil.

[0019] Optionally, auxiliary support wheels are installed on the lower side of the upper material guide chute and the lower side of the lower material guide chute.

[0020] By adopting the above technical solution, the upper material guide chute and the lower material guide chute are respectively supported by the auxiliary support wheels, which is conducive to enabling the backfill soil sorting device to move more smoothly.

[0021] Optionally, the auxiliary support wheel is provided with an elastic buffer, and the auxiliary support wheel is mounted to the upper material guide chute or the lower material guide chute through the elastic buffer.

[0022] By adopting the above technical solution, the elastic buffer can make the contact between the auxiliary support wheel and the ground softer, so that the backfill soil sorting device can adapt to the movement on uneven ground.

[0023] Optionally, the frame is hingedly provided with a feeding guide plate, one side of the feeding guide plate is hinged to the frame, and the other side is connected to the frame with a height adjusting part, the side of the feeding guide plate close to the height adjusting part is set as a movable side, and the height adjusting part is used to adjust the height position of the movable side of the feeding guide plate, when the movable side of the feeding guide plate is at a low point position, the feeding guide plate is inclined in a direction away from the hinged side, and when the movable side of the feeding guide plate is at a high point position, the feeding guide plate is in a horizontal state as a whole; the feeding guide plate is a corrugated plate, and the grain direction of the corrugated plate is arranged along the inclination direction of the feeding guide plate; the lower side edge of the feeding guide plate is located directly above the screening grid, and a horizontal spacing of 10-15 cm is left between the discharge port of the screening grid.

[0024] By adopting the above technical solution, before the backfill soil sorting device performs soil sorting, the feed guide plate is adjusted to a horizontal state by using a height adjustment member, and then the soil to be sorted is first poured onto the feed guide plate. Under the vibration of the vibration motor, the feed guide plate can arrange the rod-shaped materials in the soil along the direction of the corrugated lines of the feed guide plate. After the soil on the feed guide plate vibrates for a certain period of time, the feed guide plate is adjusted to an inclined state by using a height adjustment member, so that the soil on the feed guide plate gradually slides onto the feed grid. During the sliding process of the rod-shaped materials in the soil, the effective contact length between the rod-shaped materials and the feed guide plate is longer, which can make the rod-shaped materials slide out a farther distance, thereby facilitating the early separation of the rod-shaped materials with larger diameters in the soil.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: In the process of using the screen to screen the soil, rod-shaped materials such as branches and roots carried in the soil will be inserted into the mesh of the screen, and the rod-shaped materials inserted into the screen will remain upright and plugged into the screen; the pulling mechanism is translated along the surface of the screen, so that the damping roller of the pulling mechanism uses friction damping to roll the rod-shaped materials inserted on the screen to the receiving plate, thereby achieving the purpose of separating materials such as branches and roots in the soil, which is beneficial to ensure the lightning protection and grounding of the backfill soil.

[0026] The material on the screen grille is discharged through the upper guide trough, and the material on the screen is discharged through the lower guide trough. The upper guide trough and the lower guide trough can guide the material to a position farther away from the center of the backfill soil sorting device, so that the material discharged from the screen grille and the material discharged from the screen are as far away as possible from the soil screened by the screen, so that the soil screened by the screen has a larger stacking space. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0028] Figure 2 yes Figure 1 Magnified view at A in the middle.

[0029] Figure 3 It is a schematic diagram of the material pulling component in this embodiment when the protective cover is removed.

[0030] Figure 4 It is a schematic diagram used to illustrate the relative position relationship between the guide member and the roller gap in this embodiment.

[0031] Description of reference numerals: 1. Frame; 11. Traveling wheel; 12. Auxiliary support wheel; 13. Elastic buffer; 14. Upper guide trough; 15. Lower guide trough; 2. Vibration motor; 3. Screen; 31. Lower side plate; 32. Lower movable baffle; 4. Screening grid; 41. Upper side plate; 42. Upper movable baffle; 5. Upper material guide plate; 51. Height adjustment member; 511. Cam; 5111. Rotating shaft; 512. Active pin; 513. Pin seat; 6. Material extraction mechanism; 6 1. Material pulling assembly; 611. Mounting seat; 612. Damping roller; 62. Reciprocating drive member; 63. Rotating drive member; 631. Motor; 632. Driving gear; 633. Driven gear; 64. Material receiving plate; 641. Side plate; 642. Limiting plate; 643. Blocking rod; 644. Elastic reset member; 65. Roller-material gap; 651. Material gathering gap; 652. Material rejection gap; 66. Guide member; 661. Guide surface; 67. Protective cover. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a backfill soil sorting device for construction of lightning protection grounding body for electric power engineering. Figure 1 The backfill soil sorting device for the construction of lightning protection grounding body of power engineering comprises a frame 1, a vibration motor 2, a screen 3 and a screen material grid 4, the screen material grid 4 is located above the screen 3, and the screen 3 and the screen material grid 4 are inclined in opposite directions; the two oblique sides of the screen 3 are respectively provided with lower side plates 31, and the two oblique sides of the screen material grid 4 are respectively provided with upper side plates 41, the frame 1 is provided with an upper movable baffle 42 and a lower movable baffle 32, the lower movable baffle 32 is located at the lower side of the screen 3, and is used to block the material on the surface of the screen 3; the upper movable baffle 42 is located at the lower side of the screen material grid 4, and is used to block the material on the surface of the screen material grid 4. The frame 1 is provided with an upper material guide trough 14 and a lower material guide trough 15, the upper material guide trough 14 is used to receive the material on the screen material grid 4, and the lower material guide trough 15 is used to receive the material on the screen 3; the upper material guide trough 14 and the lower material guide trough 15 have opposite material guiding directions. Traveling wheels 11 are provided at the bottom of the frame 1 , and the backfill soil sorting device can be moved by the traveling wheels 11 .

[0034] When the backfill soil sorting device screens the soil, the screening grid 4 first screens out the larger-sized solid materials such as stones and concrete blocks in the soil, and the screen 3 then screens out the smaller-sized fine stone particles in the soil to screen out the smaller-sized soil particles. The materials on the screening grid 4 are discharged through the upper guide chute 14 after the upper movable baffle 42 is opened, and the materials on the screen 3 are discharged through the lower guide chute 15 after the lower movable baffle 32 is opened. The upper guide chute 14 and the lower guide chute 15 guide the materials in opposite directions respectively.

[0035] Reference Figure 1 The upper movable baffle 42 and the lower movable baffle 32 are respectively connected to the frame 1 in a vertical sliding manner. The upper surface of the screening grid 4 can be used as a limit surface of the upper movable baffle 42; the upper surface of the screen 3 can be used as a limit surface of the lower movable baffle. The upper movable baffle 42 and the lower movable baffle 32 move upwards respectively to complete the unloading action of the screening grid 4 and the screen 3; the upper movable baffle 42 and the lower movable baffle 32 can be manually operated, or a special lifting drive structure can be set.

[0036] In addition to being installed by sliding connection, the upper movable baffle 42 and the lower movable baffle 32 can also be installed by hinged connection combined with locking pins.

[0037] Reference Figure 1 Auxiliary support wheels 12 are installed on the lower side of the upper guide trough 14 and the lower guide trough 15. The auxiliary support wheel 12 is provided with an elastic buffer 13, which is a helical compression spring. The auxiliary support wheel 12 is installed to the upper guide trough 14 or the lower guide trough 15 through the elastic buffer 13.

[0038] Reference Figure 1 and Figure 2 The frame 1 is hingedly provided with a feeding guide plate 5, one side of the feeding guide plate 5 is hinged to the frame 1, the hinged side of the feeding guide plate 5 is away from the high side of the screening grid 4, a height adjusting member 51 is connected between the side of the feeding guide plate 5 away from the hinged side and the frame 1, the side of the feeding guide plate 5 close to the height adjusting member 51 is set as a movable side, the movable side of the feeding guide plate 5 is close to the high side of the screening grid 4, the height adjusting member 51 includes a cam 511, the cam 511 has a rotating shaft 5111, the rotating shaft 5111 of the cam 511 is rotatably connected to the frame 1, and the height position of the movable side of the feeding guide plate 5 can be adjusted during the rotation of the cam 511.

[0039] When the movable side of the feeding guide plate 5 is at the low point, the feeding guide plate 5 is inclined in the direction away from the hinge side, and when the movable side of the feeding guide plate 5 is at the high point, the feeding guide plate 5 is in a horizontal state as a whole. The cam 511 is provided with a movable pin 512, and the movable pin 512 is parallel to the rotating shaft 5111. The lower surface of the feeding guide plate 5 is fixedly provided with a latch seat 513, and the latch seat 513 is provided with a pin hole for the movable pin 512 to be inserted. When the movable pin 512 is inserted into the pin hole, the movable side of the feeding guide plate 5 is at the high point.

[0040] The feeding guide plate 5 is a corrugated plate, and the grain direction of the corrugated plate is arranged along the inclined direction of the feeding guide plate 5; the lower side edge of the feeding guide plate 5 is located directly above the screening grid 4, and there is a horizontal distance of 10-15 cm between the feeding guide plate 5 and the discharge port of the screening grid 4.

[0041] Before the backfill soil sorting device performs soil sorting, the feed guide plate 5 is adjusted to a horizontal state by using the height adjustment member 51, and then the soil to be sorted is first poured onto the feed guide plate 5. Under the vibration of the vibration motor, the feed guide plate 5 can arrange the rod-shaped materials in the soil along the direction of the corrugation of the feed guide plate 5. After the soil on the feed guide plate 5 vibrates for a certain period of time, the feed guide plate 5 is adjusted to an inclined state by using the height adjustment member 51, so that the soil on the feed guide plate 5 gradually slides onto the feed grid. During the sliding process, the effective contact length between the rod-shaped materials in the soil and the feed guide plate 5 is longer, which can make the rod-shaped materials slide out a farther distance, thereby facilitating the early separation of the rod-shaped materials with larger diameters in the soil.

[0042] The screen 3 has two layers of mesh, the spacing between the two layers of mesh is greater than one time the aperture of the screen 3 and less than two times the aperture of the screen 3, the mesh edges of the two layers of mesh are relatively inclined, and the centers of the meshes of the two layers of mesh are staggered. Since the mesh holes of the two layers of mesh of the screen 3 are staggered and the edge directions are relatively inclined, it is difficult for some plant roots and dead branches in the soil to continue to pass through the lower mesh after penetrating the upper mesh, so that the plant roots and dead branches in the soil can be retained on the screen 3 in a vertical insertion manner.

[0043] Reference Figure 1 and Figure 3 The frame 1 is provided with a material pulling mechanism 6, which includes a material pulling component 61 and a reciprocating drive member 62. The reciprocating drive member 62 is a linear module, a cylinder or an electric cylinder. The material pulling component 61 includes a mounting seat 611 and a plurality of damping rollers 612. The mounting seat 611 is installed above the screen 3 through the reciprocating drive member 62. The surface of the damping roller 612 is provided with a rubber layer. The damping roller 612 is tilted. The plurality of damping rollers 612 are rotated and installed on the mounting seat 611 in sequence along a straight line. The arrangement direction of the damping roller 612 is perpendicular to the driving direction of the reciprocating drive member 62.

[0044] The mounting seat 611 is provided with a rotary drive member 63 for driving a plurality of damping rollers 612 to rotate synchronously. The rotary drive member 63 includes a motor 631. The output shaft of the motor 631 is provided with a driving gear 632. The upper end of the damping roller 612 is provided with a driven gear 633. The driven gears 633 of two adjacent damping rollers 612 mesh with each other. The driving gear 632 meshes with one of the driven gears 633. The motor 631 drives each damping roller 612 to rotate simultaneously through the driving gear 632 and the driven gear 633. The rotation directions of the two adjacent damping rollers 612 are opposite. The two adjacent damping rollers 612 can roll the rod-shaped material inserted on the screen 3. The mounting seat 611 is provided with a protective cover 67. The protective cover 67 covers the driving gear 632 and the driven gear 633, so that the driving gear 632 and the driven gear 633 are protected.

[0045] The mounting seat 611 is fixed with a receiving plate 64, which is located on the side of the damping roller 612 that is tilted upward. The edge of the receiving plate 64 close to the damping roller 612 is located below the lower end surface of the damping roller 612. The receiving plate 64 is used to receive the rod-shaped material fed by two adjacent damping rollers 612.

[0046] Reference Figure 3 and Figure 4A roller-material gap 65 is formed between two adjacent damping rollers 612. The roller-material gap 65 is divided into a material gathering gap 651 and a material rejection gap 652 according to the rolling direction, wherein the rolling direction of the material gathering gap 651 is toward the material receiving plate 64, and the rolling direction of the material rejection gap 652 is away from the material receiving plate 64; the mounting seat 611 is provided with a plurality of guide members 66, the guide members 66 are located on the side of the damping roller 612 away from the material receiving plate 64, each guide member 66 corresponds to a material rejection gap 652, the guide member 66 is used to shield the corresponding material rejection gap 652, the guide member 66 has an outwardly convex guide surface 661, the guide surface 661 is used to guide the rod-shaped material on the surface of the screen 3 to the material gathering gap 651, the guide surface 661 is a V-shaped surface or an arc surface, and the guide surface 661 is away from the damping roller 612.

[0047] The receiving plate 64 gradually tilts downward in the direction away from the damping roller 612, and side plates 641 are respectively provided on two opposite sides of the receiving plate 64, and a limit plate 642 is hinged between the two side plates 641, and the lower edge of the limit plate 642 is lower than the lower side of the receiving plate 64, and the frame 1 is provided with a blocking rod, which is used to force the limit plate 642 to flip in the horizontal direction, and the side plate 641 is provided with an elastic reset member 644, which is used to force the limit plate 642 to abut against the lower side of the receiving plate 64, and the elastic reset member 644 is an elastic rope or a spring.

[0048] The material pulling mechanism 6 translates along the surface of the screen 3, so that the damping roller 612 of the material pulling mechanism 6 uses friction damping to roll the rod-shaped material inserted on the screen 3 to the material receiving plate 64, so as to remove the rod-shaped material inserted on the screen 3, and achieve the purpose of separating materials such as branches and roots in the soil. After the damping roller 612 rolls the rod-shaped material to the material receiving plate 64, the rod-shaped material slides away from the damping roller 612 along the surface of the material receiving plate 64, and accumulates in the angle area between the limit plate 642 and the material receiving plate 64. When the material pulling mechanism 6 moves away from the screen 3 and touches the blocking rod, the blocking rod forces the limit plate 642 to rotate in the horizontal direction, so that the rod-shaped material on the material receiving plate 64 slides off the material receiving plate 64 and is discharged.

[0049] The implementation principle of the backfill soil sorting device for the construction of the lightning protection grounding body of the power engineering in the embodiment of the present application is as follows: when the backfill soil sorting device is used for soil sorting, the soil is poured onto the feeding guide plate 5, and after being sorted and guided by the feeding guide plate 5, the soil slides from the feeding guide plate 5 to the screening grid 4. In this process, some longer rod-shaped materials in the soil are first separated from the soil; after the soil passes through the screening grid 4, larger stones, concrete blocks, etc. are separated from the soil; the soil passing through the screening grid 4 falls onto the screen 3, and the screen 3 further screens the soil, wherein the soil that meets the particle size standard passes through the two layers of mesh of the screen 3 and is screened off by the screen 3. Subsequently, the upper movable baffle 42 and the lower movable baffle 32 are removed, so that the screening grid 4 is discharged through the upper guide trough 14, and the remaining material on the screen 3 is discharged through the lower guide trough 15.

[0050] In the process of using the screen 3 to screen the soil, the rod-shaped materials such as branches and roots carried in the soil remain upright and inserted on the screen 3; in this case, after the gravel and soil blocks on the screen 3 are discharged, the pulling mechanism 6 is used to translate along the surface of the screen 3, so that the damping roller 612 of the pulling mechanism 6 uses friction damping to roll the rod-shaped materials inserted on the screen 3 to the receiving plate 64, so as to remove the rod-shaped materials on the screen 3, thereby achieving the purpose of separating materials such as branches and roots in the soil, reducing the mixing of branches and roots in the soil into the backfill soil, and reducing the situation where the density of the backfill soil is affected by branches and roots, so as to ensure the lightning protection and grounding effect of the backfill soil.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A backfill soil sorting device for construction of lightning protection grounding body for power engineering, characterized in that: The machine comprises a frame (1), the frame (1) being provided with a vibration motor (2), the frame (1) being provided with a screen (3) and a material removal mechanism (6), the screen (3) having two layers of meshes, the spacing between the two layers of meshes being greater than one time the aperture of the screen (3), the mesh edges of the two layers of meshes being relatively inclined, and the centers of the meshes of the two layers of meshes being staggered with each other; The screen (3) is arranged at an angle, and lower side plates (31) are respectively provided on the two oblique sides of the screen (3). The frame (1) is provided with a lower movable baffle (32), and the lower movable baffle (32) is located on the lower side of the screen (3). The lower movable baffle (32) is used to shield the material on the surface of the screen (3); The material pulling mechanism (6) comprises a material pulling component (61) and a reciprocating driving member (62) for driving the material pulling component (61) to move horizontally back and forth. The material pulling component (61) comprises a mounting seat (611) and a plurality of damping rollers (612). The damping rollers (612) are arranged vertically or obliquely. The plurality of damping rollers (612) are mounted on the mounting seat (611) in a rotational manner in sequence along a straight line. The mounting seat (611) is provided with a rotating driving member (63) for driving the plurality of damping rollers (612) to rotate synchronously. The rotation directions of two adjacent damping rollers (612) are opposite. The two adjacent damping rollers (612) can roll and convey rod-shaped materials inserted on the screen (3). The mounting seat (611) is provided with a material receiving plate (64). The material receiving plate (64) is used to receive the rod-shaped materials rolled and conveyed by the two adjacent damping rollers (612).

2. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 1 is characterized by: The damping roller (612) is arranged at an angle, the receiving plate (64) is located on the side of the damping roller (612) that is inclined upward, and the edge of the receiving plate (64) close to the damping roller (612) is located below the lower end surface of the damping roller (612).

3. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 1 is characterized by: The material receiving plate (64) is gradually inclined downward in a direction away from the damping roller (612); two opposite sides of the material receiving plate (64) are respectively provided with side plates (641); a limit plate (642) is hingedly connected between the two side plates (641); the lower edge of the limit plate (642) is lower than the lower side of the material receiving plate (64); the frame (1) is provided with a blocking rod (643); the blocking rod (643) is used to force the limit plate (642) to flip in a horizontal direction; the side plate (641) is provided with an elastic reset member (644); the elastic reset member (644) is used to force the limit plate (642) to abut against the lower side of the material receiving plate (64).

4. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 1 is characterized by: A roller-material gap (65) is formed between two adjacent damping rollers (612), and the roller-material gap (65) is divided into a material gathering gap (651) and a material repelling gap (652) according to the rolling direction, wherein the rolling direction of the material gathering gap (651) is toward the material receiving plate (64), and the rolling direction of the material repelling gap (652) is away from the material receiving plate (64); the mounting seat (611) is provided with a plurality of guide members (66), the guide members (66) are located on a side of the damping roller (612) away from the material receiving plate (64), the guide members (66) are used to shield the material repelling gap (652), the guide members (66) have an outwardly convex guide surface (661), the guide surface (661) is away from the damping roller (612), and the guide surface (661) is used to guide the rod-shaped material on the screen (3) to the material gathering gap (651).

5. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 1, characterized in that: The frame (1) is provided with a screening grille (4), the screening grille (4) is arranged at an angle, the screening grille (4) is located above the screen (3), and upper side plates (41) are respectively provided on the two oblique sides of the screening grille (4). The frame (1) is provided with an upper movable baffle (42), the upper movable baffle (42) is located on the lower side of the screening grille (4), and the upper movable baffle (42) is used to shield the material on the surface of the screening grille (4).

6. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 5, characterized in that: The frame (1) is provided with an upper material guide chute (14) and a lower material guide chute (15); the upper material guide chute (14) is used to receive materials on the screening grid (4), and the lower material guide chute (15) is used to receive materials on the screen (3); the material guiding directions of the upper material guide chute (14) and the lower material guide chute (15) are opposite.

7. A backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 6, characterized in that: The frame (1) is provided with running wheels (11).

8. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 7, characterized in that: Auxiliary support wheels (12) are installed on the lower side of the upper material guide trough (14) and the lower side of the lower material guide trough (15).

9. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 8, characterized in that: The auxiliary support wheel (12) is provided with an elastic buffer (13), and the auxiliary support wheel (12) is mounted to the upper material guide trough (14) or the lower material guide trough (15) through the elastic buffer (13).

10. The backfill soil sorting device for construction of lightning protection grounding body for electric power engineering according to claim 1, characterized in that: The frame (1) is hingedly provided with a feeding guide plate (5), one side of the feeding guide plate (5) is hingedly connected to the frame (1), and the other side is connected to the frame (1) with a height adjustment member (51), and the side of the feeding guide plate (5) close to the height adjustment member (51) is set as a movable side, and the height adjustment member (51) is used to adjust the height position of the movable side of the feeding guide plate (5). When the movable side of the feeding guide plate (5) is at a low point, the height adjustment member (51) is set as a movable side. The feeding guide plate (5) is inclined in a direction away from the hinged side, and when the movable side of the feeding guide plate (5) is at a high point, the feeding guide plate (5) is in a horizontal state as a whole; the feeding guide plate (5) is a corrugated plate, and the grain direction of the corrugated plate is arranged along the inclined direction of the feeding guide plate (5); the lower side edge of the feeding guide plate (5) is located directly above the screening grille (4), and a horizontal distance of 10-15 cm is left between the feeding guide plate and the discharge port of the screening grille (4).

Images