A device and method for trenching in mountainous terrain

Abstract

The present application belongs to the technical field of mountainous area exploration trench, and specifically discloses a kind of mountainous area exploration trench device and method, its device includes exploration trench rack, is equipped with crawler-type drive wheel on exploration trench rack, and is equipped with tunneling and soil conveying mechanism at the head of exploration trench rack, and tunneling and soil conveying mechanism is connected with separation storage mechanism arranged on exploration trench rack;Exploration trench rack is equipped with at least one groove wall compaction mechanism, and groove wall compaction mechanism includes compaction connecting rod arranged on exploration trench rack, and compaction connecting rod is equipped with compactor at the end away from exploration trench rack;The present application moves exploration trench rack by crawler-type drive wheel drive, and the exploration trench is excavated by tunneling and soil conveying mechanism, and the soil produced in the process of excavation is stored by separation storage mechanism, and the exploration trench is compacted by groove wall compaction mechanism, which can effectively improve the stability of exploration trench wall, prevent the exploration trench wall from being loose, falling off and other problems, reduce the probability of exploration trench collapse, and effectively improve the stability of exploration trench.

Description

Technical Field

[0001] This invention belongs to the field of trenching technology in mountainous areas, specifically relating to a trenching device and method for use in mountainous areas. Background Technology

[0002] When excavating trenches for geological exploration and engineering construction in mountainous areas, traditional trench excavation relies heavily on manual labor or small machinery. This results in problems such as low efficiency, high labor intensity, and difficulty in ensuring the safety of workers in complex mountainous terrain.

[0003] Existing small trenching machines can usually only complete simple trench excavation. After trenching in mountainous areas, the poor stability of the geological conditions leads to poor stability of the trench walls, which are prone to loosening and falling off, making trench collapse accidents very likely. This not only affects subsequent exploration or construction, but also easily leads to safety accidents.

[0004] Furthermore, existing small trenching machines cannot effectively separate the soil and rock mixture generated during the excavation process, thus requiring additional equipment or manpower for subsequent sorting. This not only increases the construction process and costs but also has an unnecessary impact on the mountain ecological environment.

[0005] However, the existing technology lacks an integrated device that can effectively compact the trench walls simultaneously during the excavation process, resulting in low overall efficiency and safety of trench construction, making it difficult to meet the requirements of modern mountain engineering for trench quality and progress. Summary of the Invention

[0006] To address the aforementioned issues, a trenching device and method for mountainous areas are provided that can improve the safety of trenching.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention provides a trenching device for mountainous areas, including a trenching frame with tracked drive wheels. The trenching frame has a tunneling and soil conveying mechanism at its head end, which is connected to a separation and storage mechanism on the trenching frame. The trenching frame has at least one trench wall compaction mechanism, which includes a compaction link on the trenching frame, and a compactor at the end of the compaction link away from the trenching frame.

[0008] Preferably, the compactor includes a compaction main plate connected to a compaction connecting rod. At least one pair of compaction auxiliary plates are symmetrically arranged on both sides of the compaction main plate and rotatably connected to it via a compaction rotating shaft. A limiting main hole is provided on the side of the compaction main plate, corresponding to a limiting auxiliary hole provided on the side of the compaction auxiliary plate. A limiting main plate is provided within the limiting main hole, and the limiting main plate is rotatably connected to the limiting auxiliary plate provided within the limiting auxiliary hole via a limiting rotating shaft. The compaction rotating shaft is fixedly connected to a main plate protrusion on the compaction main plate, and both ends of the compaction rotating shaft are rotatably connected to auxiliary plate protrusions on the compaction auxiliary plates. Limiting balls are provided on the sides of both the limiting main plate and the limiting auxiliary plate, and the limiting balls engage with limiting grooves respectively provided on the sides of the limiting main hole and the limiting auxiliary hole.

[0009] Preferably, the compaction shaft is fitted with a limiting retaining shaft, which is connected to a limiting retaining plate through a fan-shaped retaining hole on the compaction shaft. The limiting retaining plate engages with multiple limiting retaining grooves on the side of the limiting sub-plate. The end of the limiting retaining shaft is provided with a detachable adjusting handle, which has an adjusting mark that cooperates with a scale ring on the end of the compaction shaft. The limiting main plate is provided with a limiting motor, and the movable end of the limiting motor engages with the limiting gear teeth on the limiting main plate through a gear. The fan-shaped retaining hole is located on the side of the compaction shaft near the limiting sub-plate. The depth of the limiting grooves is not uniform.

[0010] Preferably, the trenching frame is equipped with a compaction adjustment shaft, which is connected to the compaction connecting rod via a compaction bearing located within the compaction connecting rod. A detachable counterweight is located at the end of the compaction connecting rod furthest from the compactor. The counterweight has a fan-shaped compaction groove, which engages with a compaction motor mounted on the trenching frame. A compaction gear is located at the movable end of the compaction motor, meshing with compaction gear teeth located inside the fan-shaped compaction groove. Arc-shaped limiting plates are located on both sides of the fan-shaped compaction groove. A main compaction push rod connected to the main compaction plate is located within the compaction connecting rod. Symmetrically arranged on both sides of the compaction connecting rod are auxiliary compaction push rods connected to the auxiliary compaction plate. The two ends of the auxiliary compaction push rods are rotatably connected to the compaction connecting rod and the auxiliary compaction plate via push rod shafts, respectively. The main compaction push rod is rotatably connected to the main compaction plate via a main push rod shaft.

[0011] Preferably, the tunneling and soil conveying mechanism includes a tunneling structure disposed at the head end of the trench frame, the tunneling structure cooperating with a soil conveying structure disposed within the trench frame; the tunneling structure includes hydraulic telescopic arms disposed on both sides of the head end of the trench frame, the ends of the hydraulic telescopic arms being connected by a tunneling drum, and the tunneling drum cooperating with a tunneling motor disposed on the hydraulic telescopic arms.

[0012] Preferably, the soil conveying structure includes a bucket installed inside the trenching frame, a soil-shoveling shaft on the bucket, the soil-shoveling shaft being connected to a hydraulic soil-shoveling push rod inclined on the trenching frame; a soil-shoveling bearing on the soil-shoveling shaft, the soil-shoveling bearing being connected to a soil-shoveling chute inclined on the trenching frame, the soil-shoveling chute being arranged parallel to the hydraulic soil-shoveling push rod; a bucket shaft on the bucket, a bucket adjusting push rod rotatably connected to the hydraulic soil-shoveling push rod via a bucket adjusting shaft; and a soil conveying chute inclinedly installed inside the trenching frame.

[0013] Preferably, the hydraulic telescopic boom is rotatably connected to the trenching machine frame via a tunneling shaft; the trenching machine frame is equipped with a hydraulic adjusting arm, the two ends of which are rotatably connected to the hydraulic telescopic boom and the trenching machine frame respectively via adjusting shafts; and the tunneling drum is evenly distributed with breaking teeth.

[0014] Preferably, the separation and storage mechanism includes a soil-rock separation structure and a soil storage structure connected to the soil-rock separation structure; the soil-rock separation structure includes a screening cylinder installed inside the trenching machine frame and connected to the soil conveying chute at the tail end of the excavation and soil conveying mechanism; a horizontal screening plate is inclinedly installed inside the screening cylinder, and the horizontal screening plate is connected to the screening interval installed inside the screening cylinder; a front conical screening chamber and a rear conical screening chamber are respectively provided on both sides of the screening interval on the bottom surface of the screening cylinder; screening ears are provided at both ends of the screening cylinder, and the screening ears are connected to the vibrator installed on the trenching machine frame through screening rods; screening springs are sleeved on the screening rods and connected to the screening ears and the vibrator at both ends; screening railings are provided on the trenching machine frame on both sides of the screening cylinder.

[0015] Preferably, the soil storage structure includes screw conveyors respectively installed inside the trenching frame and connected to the bottom ends of the front and rear conical screening chambers. The top of the screw conveyor is provided with a storage guide plate whose end is inclined towards the tail end of the trenching frame. The end of the storage guide plate is rotatably connected to the screw conveyor through a storage guide shaft. A guide spring that cooperates with the storage guide plate is sleeved on the storage guide shaft. One end of the guide spring is fixedly connected to the storage guide plate, and the other end is fixedly connected to the screw conveyor. The input port of the screw conveyor is connected to the screening port located at the bottom end of the front and rear conical screening chambers. The input port of the screw conveyor is a flared nozzle that is clearance-fitted with the screening port.

[0016] A method for using a trenching device for mountainous areas includes the following steps: S1. Positioning and adjustment of the trenching device; The trenching device, transported to a suitable location in the mountainous area, is driven by tracked wheels to the trench to be excavated. Based on the preset trench location, the angle of the hydraulic telescopic arm is adjusted by the hydraulic adjusting arm to align the tunneling drum with the starting point of the trench excavation. According to the trench excavation shape, the shape of the compactor is adjusted. By adjusting the position of the limiting main plate and the limiting secondary plate, the angle between the compactor main plate and the compactor secondary plate is adjusted, so that the compactor meets the compaction requirements of trenches of different shapes.

[0017] S2, tunneling operation; The tunneling motor is started to drive the tunneling drum to rotate. The crushing teeth on the tunneling drum are used to break up the soil in the mountain. At the same time, the hydraulic telescopic boom extends downwards gradually according to the set depth of the trench to realize the initial excavation of the trench.

[0018] S3, Soil and rock collection and transportation; The crushed soil and rock mixture is collected using the bucket. The hydraulic shovel push rod is activated, and the bucket is tilted upwards and moved above the soil conveying chute via the shovel shaft. Then, the bucket push rod is adjusted to change the bucket angle via the bucket shaft, and the soil and rock mixture is poured into the soil conveying chute, which then transports it to the soil and rock separation structure.

[0019] S4. Separation of soil and rock; After the soil and rock mixture enters the screening cylinder, the vibrator drives the screening cylinder to vibrate through the screening rod, which in turn drives the horizontal screening plate to separate the soil and rock mixture. This causes the smaller soil particles to fall into the rear conical screening chamber through the horizontal screening plate, while the larger soil and rock particles remain in the front conical screening chamber.

[0020] S5. Storage of soil; The soil and rocks in the front and rear conical screening chambers enter the corresponding screw conveyors, which transport the soil and rocks upward to the storage guide plate. The storage guide plate rotates around the storage guide shaft under the action of the soil and rocks, storing the soil and rocks on both sides of the tail end of the soil and rock guide trench frame. The guide spring resets the storage guide plate after the soil and rocks are transported.

[0021] S6. Compact the trench walls; During the trench excavation process, the compaction motor meshes with the compaction wheel teeth on the inner side of the fan ring compaction groove through the compaction gear, driving the compaction connecting rod to rotate around the compaction adjustment shaft, thereby adjusting the angle between the compactor and the trench wall. After the compactor is adjusted, the main compaction push rod pushes the main compaction plate and the secondary compaction plate close to the trench wall to perform compaction operations on the trench wall.

[0022] S7, Trenching Propulsion; After the excavation, separation, storage and compaction of a section of the trench are completed, the tracked drive wheel drives the trenching device forward a set distance, and steps S2-S6 are repeated until the excavation of the entire trench is completed.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) Through integrated design, this invention can effectively realize the integrated operation of trench excavation, soil conveying, soil-rock separation, soil storage and trench wall compaction, solving the problem of single function and scattered process in traditional trench excavation; this invention drives the trench frame to move through tracked drive wheels, excavates the trench through the excavation and soil conveying mechanism, and the soil generated during the excavation process is stored by the separation and storage mechanism. The trench wall compaction mechanism is used to compact the excavated trench, which can effectively improve the stability of the trench wall, prevent the trench wall from loosening and falling off, reduce the probability of trench collapse, and effectively improve the stability of the trench.

[0024] (2) This invention utilizes the excavation and soil conveying mechanism at the head end of the trenching machine to excavate a trench. The angle and depth of the excavation drum are adjusted via a hydraulic telescopic arm, and the excavation drum with crushing teeth is driven by a tunneling motor to crush the mountain soil. The crushed soil-rock mixture is collected by a bucket and, under the synergistic action of a hydraulic shovel pusher and a bucket adjusting pusher, is conveyed to the soil-rock separation structure via a soil conveying chute. The screening cylinder in the soil-rock separation structure vibrates under the action of a vibrator, achieving efficient separation of soil and rock. The separated soil and soil-rock particles enter their respective screw conveyors. The storage structure uses a screw conveyor to transport soil and rock upwards. Under the action of the soil and rock's gravity and guide springs, the storage guide plate can achieve orderly storage of soil and rock. Finally, the trench wall compaction mechanism uses a compaction motor to drive the fan ring compaction trench to rotate. With the cooperation of the main compaction push rod and the secondary compaction push rod, the position and angle of the main compaction plate and the secondary compaction plate are adjusted. The limit motor and limit clamp shaft and other components ensure the precise fixation of the compaction angle. The arc-shaped limit plate ensures the stability of the compaction process. Thus, the trench wall compaction operation is completed simultaneously during the trench excavation process, which can significantly improve the overall construction efficiency and safety of the trench.

[0025] (2) The tunneling structure of this invention adopts a combination of hydraulic telescopic arm and hydraulic adjusting arm, and achieves multi-angle flexible adjustment through the tunneling shaft and adjusting shaft. With the help of tracked drive wheels, the device can adapt to the trenching needs of different slopes and undulating terrains in mountainous areas. In the soil conveying structure, the soil shovel chute and the hydraulic soil shovel push rod are set in parallel, and the soil shovel bearing slides in the chute to ensure the stability of the bucket lifting process. The bucket adjusting push rod precisely adjusts the bucket angle through the bucket shaft to avoid the soil-rock mixture from spilling during the conveying process. In the soil-rock separation structure, the front conical screening chamber and the rear conical screening chamber are combined with the inclined setting of the horizontal screening plate to utilize the gravity Force assists in soil and rock separation; the storage guide plate of the soil storage structure achieves automatic reset through the storage guide shaft and guide spring, ensuring the accuracy of the soil and rock storage position and avoiding secondary interference to the excavated trench; the compaction sub-plate of the trench wall compaction mechanism achieves multi-angle adjustment and fixation through components such as the limiting main plate, limiting sub-plate and limiting clamp shaft, and the arc-shaped limiting plate guides and limits the rotation of the fan ring compaction trench, ensuring the accuracy and stability of the compaction operation, so that the device can stably and efficiently complete the trench construction in the complex mountain environment, which can effectively improve the adaptability and operational reliability of the invention in the complex mountain terrain.

[0026] (3) By setting an independently adjustable trench wall compaction mechanism, the present invention can achieve targeted compaction treatment of the trench wall at different locations, effectively improving the overall stability of the trench in mountainous areas, and is especially suitable for trench excavation in humid environments. The present invention can flexibly configure the number and position of the trench wall compaction mechanism according to the actual width and depth requirements of the trench. The compactor of the trench wall compaction mechanism is composed of a compaction main plate and symmetrically arranged compaction sub-plates. The compaction sub-plates are rotatably connected to the compaction main plate through a compaction shaft, which makes it convenient to adjust the angle between the compaction sub-plates and the compaction main plate according to the shape of the trench, so that the compactor can meet the compaction requirements of rectangular trenches and arc-shaped trenches.

[0027] (4) In the compactor of the present invention, the limiting main plate in the limiting main hole and the limiting secondary plate in the limiting secondary hole are rotatably connected. By moving the limiting main plate and the limiting secondary plate completely into the limiting main hole and the limiting secondary hole of the compaction main plate and the compaction secondary plate respectively, the limiting main plate and the limiting secondary plate can be angled with the compaction main plate and the compaction secondary plate, so as to achieve the purpose of adjusting the unfolding angle between the compaction main plate and the compaction secondary plate, thereby meeting the compaction requirements of different slope groove walls; the cooperation of the limiting pin, the limiting plate and the limiting groove can reliably fix the compaction secondary plate after the adjustment is completed. The angle is designed to prevent angular deviation during compaction; the meshing of the limiting ball bearings and the limiting groove ensures the smoothness and stability of the limiting main plate and the limiting secondary plate during rotation adjustment, avoiding jamming; the design of multiple independently adjustable compaction mechanisms allows the device to perform precise compaction operations according to the actual conditions of the trench wall, such as differences in soil properties at different depths and changes in the inclination angle of the trench wall, effectively avoiding the risk of trench wall collapse due to inadequate local compaction, and significantly improving the safety and quality of trench construction.

[0028] (5) The separation and storage mechanism in this invention can improve the efficiency and accuracy of soil and rock separation through the soil and rock separation structure, which provides convenience for subsequent soil storage and utilization; the soil and rock separation structure uses a horizontally placed screen plate that is inclined inside the screen cylinder. The inclination angle can utilize the gravity of the soil and rock mixture itself to assist it in flowing in the screen cylinder, increase the screening time, and improve the separation effect; the size of the screen holes on the horizontally placed screen plate can be changed according to the actual exploration needs to adapt to the separation requirements of soil and rock with different particle sizes.

[0029] (6) The screening ear is connected to the vibrator through the screening rod. The excitation force generated by the vibrator is transmitted to the screening cylinder through the screening rod, causing the entire screening cylinder to vibrate at high frequency. This causes the soil-rock mixture to jump and roll continuously on the screening plate, accelerating the soil through the screen holes, while larger soil-rock particles are effectively intercepted in the front conical screening chamber. The screening spring sleeved on the screening rod plays a buffering role on the one hand, reducing the impact of vibration on the entire device structure, and on the other hand, it can also generate a certain elastic deformation during the vibration process, which helps to enhance the vibration amplitude of the screening cylinder and further improve the separation efficiency. The conical structure of the front conical screening chamber and the rear conical screening chamber is conducive to the separation of soil and rock into their respective screw conveyor inlets, avoiding the accumulation of soil and rock in the screening cylinder and ensuring the continuity of separation and conveying.

[0030] (7) The soil-rock separation structure of the present invention can make the separated soil particles uniform and the soil and rock particles have high purity, which not only facilitates the subsequent storage and management of soil, but also provides high-quality materials for the analysis and research of soil samples in geological exploration. At the same time, the separated soil and rock particles can also be centrally processed or reused, effectively reducing the generation of waste.

[0031] (8) In this invention, the separation and storage mechanism can achieve orderly and efficient storage of materials after soil and rock separation through the soil storage structure, which can reduce the interference to the surrounding environment of the trench and the trouble of secondary material handling; the soil storage structure uses a screw conveyor to transport the separated soil and soil and rock particles from the bottom of the screening cylinder upwards. The outer end of the storage guide plate is inclined towards the tail end of the trench frame. When the soil and rock are transported to the storage guide plate, under its own gravity, the storage guide plate will rotate downwards around the storage guide axis at a certain angle, so that the soil and rock can move smoothly towards the tail end of the trench frame; when the material is transported, the guide spring will pull the storage guide plate upwards to reset and return to the initial position, avoiding the influence of the guide plate being in an inclined state for a long time on the operation of other components of the device, effectively reducing the impact of soil and rock accumulation on subsequent construction or causing safety hazards, and also providing convenience for subsequent possible soil backfilling or soil and rock particle removal work.

[0032] (9) The tunneling and soil conveying mechanism can adjust the angle as needed during the trench excavation process; when the tunneling angle needs to be adjusted, the hydraulic adjusting arm drives the hydraulic telescopic arm to rotate around the tunneling shaft through the telescopic action, thereby changing the working angle of the tunneling drum; so that the tunneling drum can not only excavate in the vertical direction, but also flexibly adjust the excavation direction according to the undulation of the mountain terrain and the inclination requirements of the trench design. For example, when encountering a locally inclined mountain slope, the length of the hydraulic adjusting arm can be adjusted to make the tunneling drum form a suitable angle with the slope, ensuring that the direction and shape of the trench excavation meet the preset requirements; at the same time, the evenly distributed breaking teeth on the tunneling drum can effectively break the soil and rock at different angles, ensuring that a high tunneling efficiency can still be maintained after the angle is adjusted. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the trench wall compaction mechanism in this invention; Figure 3 This is a schematic diagram of the compactor in this invention; Figure 4 yes Figure 3 Schematic diagram of the structure of part A in the middle; Figure 5 This is a schematic diagram of the compaction shaft in this invention; Figure 6 This is a schematic diagram showing the connection between the limiting main board and the limiting sub-board in this invention; Figure 7 This is a schematic diagram of the counterweight block in this invention; Figure 8 This is a schematic diagram of the tunneling structure in this invention; Figure 9 This is a schematic diagram of the soil conveying structure in this invention; Figure 10 This is a schematic diagram of the soil-rock separation structure in this invention; Figure 11 This is a schematic diagram of the internal structure of the soil-rock separation structure in this invention; Figure 12 This is a schematic diagram of the structure for storing the guide plate in this invention; Figure 13 This is a schematic diagram showing that the cross-section of the trench is rectangular; Figure 14 This is a schematic diagram showing that the cross-section of the trench is arc-shaped.

[0034] In the diagram, 1 is the trenching frame; 2 is the tracked drive wheel; 3 is the soil conveying structure; 4 is the tunneling structure; 5 is the trench wall compaction mechanism; 6 is the separation and storage mechanism; 501 is the compaction sub-plate; 502 is the compaction main plate; 503 is the limit sub-plate; 504 is the limit sub-hole; 505 is the compaction main push rod; 506 is the compaction shaft; 507 is the compaction connecting rod; 508 is the compaction bearing; 509 is the counterweight; 510 is the compaction wheel tooth; 511 is the fan-shaped ring compaction groove; 512 is the limit main plate; 513 is the limit main hole; 514 is the limit clamping plate; 515 is the limit clamping shaft; 516 is the limit clamping groove; 517 is the fan-shaped ring clamping hole; 401 is the hydraulic telescopic boom; and 518 is the tunneling shaft. 402; Adjusting shaft 403; Hydraulic adjusting arm 404; Tunneling motor 405; Tunneling roller 406; Tunneling drum 407; Crushing tooth 408; Hydraulic shovel push rod 301; Shovel shaft 302; Bucket 303; Bucket shaft 304; Bucket adjusting push rod 305; Bucket adjusting shaft 306; Screening cylinder 601; Screening ear 602; Screening rod 603; Rear conical screening chamber 604; Screw conveyor 605; Front conical screening chamber 606; Horizontal screening plate 607; Screening interval 608; Storage guide shaft 609; Storage guide plate 610; Guide spring 611. Detailed Implementation

[0035] The present invention will be further illustrated by specific embodiments below, but this does not limit the scope of the invention.

[0036] Example 1 A trenching device for mountainous areas, the structure of which is as follows: Figure 1-12 As shown, the device includes a trenching frame 1, a tracked drive wheel 2 on the trenching frame 1, a tunneling and soil conveying mechanism at the head end of the trenching frame 1, and a separation and storage mechanism 6 on the trenching frame 1. The trenching frame 1 is equipped with at least one trench wall compaction mechanism 5, which includes a compaction connecting rod 507 on the trenching frame 1, and a compactor at the end of the compaction connecting rod 507 away from the trenching frame.

[0037] The compactor includes a compaction main plate 502 connected to a compaction connecting rod 507. At least one pair of compaction auxiliary plates 501 are symmetrically arranged on both sides of the compaction main plate 502 and are rotatably connected to the compaction main plate 502 via a compaction rotating shaft 506. A limiting main hole 513 is provided on the side of the compaction main plate 502, and the limiting main hole 513 corresponds to the limiting auxiliary hole 504 provided on the side of the compaction auxiliary plate 501. A limiting main plate 512 is provided in the limiting main hole 513, and the limiting main plate 512 is rotatably connected to the limiting auxiliary plate 503 provided in the limiting auxiliary hole 504.

[0038] The compaction shaft 506 is fitted with a limiting pin 515. The limiting pin 515 is connected to a limiting plate 514 through a fan-shaped pin hole 517 on the compaction shaft 506. The limiting plate 514 engages with multiple limiting slots 516 on the side of the limiting sub-plate 503.

[0039] The trenching frame 1 is equipped with a compaction adjustment shaft, which is connected to the compaction connecting rod 507 via a compaction bearing 508 located inside the compaction connecting rod 507. The end of the compaction connecting rod 507 away from the compactor is equipped with a detachable counterweight 509, which is equipped with a fan-shaped compaction groove 511. The fan-shaped compaction groove 511 cooperates with the compaction motor located on the trenching frame 1. The compaction connecting rod 507 is equipped with a main compaction push rod 505 connected to the main compaction plate 502.

[0040] The tunneling and soil conveying mechanism includes a tunneling structure 4 installed at the head end of the trench frame 1, which cooperates with a soil conveying structure 3 installed inside the trench frame 1. The tunneling structure 4 includes hydraulic telescopic arms 401 installed on both sides of the head end of the trench frame 1. The ends of the hydraulic telescopic arms 401 are connected by tunneling drums 407. The tunneling drums 407 cooperate with a tunneling motor 405 installed on the hydraulic telescopic arms 401 through tunneling rollers 406.

[0041] The soil conveying structure 3 includes a bucket 303 installed inside the trench frame 1. The bucket 303 is equipped with a soil shoveling shaft 302, which is connected to a hydraulic soil shoveling push rod 301 that is inclinedly installed on the trench frame 1. The bucket 303 is equipped with a bucket shaft 304, which is equipped with a bucket adjusting push rod 305 that is rotatably connected to the hydraulic soil shoveling push rod 301 via a bucket adjusting shaft 306. A soil conveying chute is inclinedly installed inside the trench frame 1.

[0042] The hydraulic telescopic boom 401 is rotatably connected to the trenching frame 1 via the tunneling shaft 402; the trenching frame 1 is equipped with a hydraulic adjusting arm 404, and the two ends of the hydraulic adjusting arm 404 are rotatably connected to the hydraulic telescopic boom 401 and the trenching frame 1 respectively via the adjusting shaft 403; the tunneling drum 407 is evenly distributed with breaking teeth 408.

[0043] The separation and storage mechanism 6 includes a soil-rock separation structure and a soil storage structure connected to the soil-rock separation structure; the soil-rock separation structure includes a screening cylinder 601 installed inside the trench frame 1 and connected to the soil conveying chute at the tail end of the excavation and soil conveying mechanism; a horizontal screening plate 607 is inclinedly installed inside the screening cylinder 601, and the horizontal screening plate 607 is connected to the screening interval 608 installed inside the screening cylinder 601; a front conical screening chamber 606 and a rear conical screening chamber 604 are respectively provided on both sides of the screening interval 608 on the bottom surface of the screening cylinder 601; screening ears 602 are provided at both ends of the screening cylinder 601, and the screening ears 602 are connected to the vibrator installed on the trench frame 1 through the screening rod 603.

[0044] The soil storage structure includes a screw conveyor 605, which is installed inside the trench frame 1 and connected to the bottom of the front conical screening chamber 606 and the rear conical screening chamber 604 respectively. The top of the screw conveyor 605 is provided with a storage guide plate 610 with its end inclined towards the tail end of the trench frame 1. The end of the storage guide plate 610 is rotatably connected to the screw conveyor 605 through a storage guide shaft 609. A guide spring 611 that cooperates with the storage guide plate 610 is sleeved on the storage guide shaft 609.

[0045] A method for using a trenching device for mountainous areas includes the following steps: S1. Positioning and adjustment of the trenching device; The trenching device, transported to a suitable location in the mountainous area, is driven to the trench to be excavated by the tracked drive wheels 2. According to the preset trench position, the angle of the hydraulic telescopic arm 401 is adjusted by the hydraulic adjusting arm 404 so that the tunneling drum 407 is aligned with the starting point of trench excavation. According to the trench excavation shape, the shape of the compactor is adjusted. By adjusting the position of the limiting main plate 512 and the limiting secondary plate 503, the angle between the compaction main plate 502 and the compaction secondary plate 501 is adjusted so that the compactor meets the compaction requirements of trenches of different shapes.

[0046] Based on the width and depth of the trench design, a trench wall compaction mechanism 5 is configured. In this embodiment, one trench wall compaction mechanism 5 is configured. Different trench devices can use different numbers of trench wall compaction mechanisms 5. The trench frame 1 has a corresponding number of compaction side holes corresponding to the trench wall compaction mechanism 5. Then, as needed, the limiting main plate 512 in the limiting main hole 513 and the limiting secondary plate 503 in the limiting secondary hole 504 are moved. Then, the angle between the compaction secondary plate 501 and the compaction main plate 502 is adjusted by the compaction rotating shaft 506 to adjust the compactor to the angle that matches the shape of the trench. Then, the limiting locking shaft 515 in the compaction rotating shaft 506 is rotated so that the limiting locking plate 514 in the fan-shaped locking hole 517 is inserted into the corresponding limiting locking slot 516 to complete the precise fixing of the angle of the compaction secondary plate 501. The tunneling and soil conveying mechanism is checked. The initial tunneling angle of the tunneling drum 407 is adjusted by the extension and retraction of the hydraulic adjusting arm 404 and the hydraulic telescopic arm 401 to ensure that the breaking teeth 408 have good contact with the ground.

[0047] When adjusting the angle between the compaction sub-plate 501 and the compaction main plate 502, such as Figure 13 As shown, if the cross-section of the trench is rectangular, the limiting main plate 512 and the limiting secondary plate 503 need to be moved so that the limiting secondary plate 503 at one end protrudes out of the limiting secondary hole 504. The two ends of the limiting main plate 512 and the limiting secondary plate 503 at the other end are located in the limiting main hole 513 and the limiting secondary hole 504, respectively, so that the compaction main plate 502 and the compaction secondary plate 501 are on the same plane, which facilitates the compactor to perform vertical compaction on the side wall of the excavated rectangular trench.

[0048] like Figure 14 As shown, if the cross-section of the test trench is arc-shaped, the limiting main plate 512 and the limiting secondary plate 503 are moved so that they are fully inserted into the corresponding limiting main hole 513 and limiting secondary hole 504, respectively. At this time, the limiting main plate 512 and the limiting secondary plate 503 will not affect the angle adjustment between the compaction main plate 502 and the compaction secondary plate 501. Then, according to the curvature of the arc, the angle between the compaction main plate 502 and the compaction secondary plate 501 is adjusted. Specifically, a tool is inserted into the inner groove at the end of the limiting clamping shaft 515 in each compaction shaft 506. The limiting clamping shaft 515 is rotated, and the limiting clamping shaft 515 rotates within the compaction shaft 506. The limiting clamping plate 514 rotates along the fan-shaped clamping hole 517, so that the limiting clamping plate 514 is inserted into the corresponding limiting clamping groove 516, thereby fixing the angle between the compaction main plate 502 and the compaction secondary plate 501. This allows the compactor to form an arc-shaped test trench sidewall.

[0049] S2, tunneling operation; The tunneling structure 4 is started, and the tunneling motor 405 drives the tunneling drum 407 to rotate through the tunneling roller 406. The breaking teeth 408 on the tunneling drum 407 are used to break the soil of the mountain. Then, the angle of the hydraulic telescopic arm 401 is adjusted by the hydraulic adjusting arm 404 in conjunction with the adjusting shaft 403. The hydraulic telescopic arm 401 rotates along the tunneling shaft 402 on the trench frame 1. The hydraulic telescopic arm 401 gradually extends downward according to the set depth of the trench to realize the initial excavation of the trench.

[0050] S3, Soil and rock collection and transportation; The soil conveying structure 3 uses a bucket to collect the crushed soil-rock mixture. The hydraulic shovel pusher 301 extends and moves along the inclined shovel chute on the trench frame 1 to a suitable position, causing the bucket 303 to descend to the excavation face. The bucket adjustment pusher 305 adjusts the bucket angle via the bucket shaft 304. The bucket adjustment shaft 306 facilitates angle adjustment of the bucket 303, shoveling the crushed soil-rock mixture into the bucket 303 for collection. Then, the hydraulic shovel pusher 301 retracts, causing the bucket 303 to tilt upwards above the soil conveying chute via the shovel shaft 302. The bucket adjustment pusher 305 then adjusts the bucket 303 angle via the bucket shaft 304, causing the bucket 303 to rise along the shovel chute and pour the soil-rock mixture into the inclined shovel chute. The mixture is then transported via the shovel chute to the screening cylinder 601 of the soil-rock separation structure in the separation and storage mechanism 6.

[0051] S4. Separation of soil and rock; After the soil and rock mixture enters the screening cylinder 601, the vibrator is started. The excitation force is transmitted to the screening ears 602 of the screening cylinder 601 through the screening rod 603, causing the screening cylinder 601 to vibrate. This causes the horizontal screening plate 607 on the screening interval 608 to separate the soil and rock mixture. The soil and rock mixture in the screening cylinder 601 jumps and rolls continuously on the inclined horizontal screening plate 607. Smaller soil particles fall into the rear conical screening chamber 604 through the screen holes on the horizontal screening plate 607 under the action of gravity and vibration. Larger soil and rock particles are intercepted in the front conical screening chamber 606, thus forming a separation process for the soil and rock mixture.

[0052] S5. Storage of soil; The soil and rocks in the front conical screening chamber 606 and the rear conical screening chamber 604 respectively enter the corresponding screw conveyors 605. The screw conveyors 605 convey the soil and rocks upward to the storage guide plate 610. Under the action of their own gravity, the soil and rocks cause the storage guide plate 610 to rotate downward around the storage guide shaft 609. The soil and rocks continuously output by the screw conveyor 605 are pushed along the inclined storage guide plate 610 towards the tail end of the trench frame 1 and stored in an orderly manner. When the screw conveyor 605 stops conveying, the guide spring 611 pulls the storage guide plate 610 upward to reset to the initial position.

[0053] S6. Compact the trench walls; During the trench excavation process, the compaction motor is started simultaneously. The compaction motor meshes with the compaction wheel teeth 510 on the inner side of the fan ring compaction groove 511 through the compaction gear, driving the compaction connecting rod 507 to rotate around the compaction adjustment shaft along the compaction bearing 508. The counterweight block 509 moves accordingly, thereby realizing the continuous adjustment of the angle between the compactor and the trench wall. During the compactor adjustment process, the main compaction push rod 505 pushes the main compaction plate 502 and the secondary compaction plate 501 close to the trench wall to continuously compact the trench wall, thereby realizing the gradual compaction treatment of the trench sidewall. When the trench wall at the tail end of the trench is compacted, the trench excavation is completed. After the trench device is controlled to complete the withdrawal from the trench, the trench device is poured into the excavated trench to compact the tail end of the trench.

[0054] S7, Trenching Propulsion; After the excavation, separation, storage and compaction of a section of the trench are completed, the tracked drive wheel 2 drives the trench device forward a set distance, repeating steps S2-S6 until the excavation, separation, storage and compaction of the entire trench is completed. During this period, the parameters of each mechanism can be adjusted at any time according to the actual construction situation to ensure construction efficiency and safety.

[0055] Example 2 A method for using a trenching device in mountainous areas, the structure of which is as follows: Figure 1-12 As shown, it includes the following steps: S1. Positioning and adjustment of the trenching device; The trenching device, transported to a suitable location in the mountainous area, is driven to the trench to be excavated by the tracked drive wheels 2. According to the preset trench position, the angle of the hydraulic telescopic arm 401 is adjusted by the hydraulic adjusting arm 404 so that the tunneling drum 407 is aligned with the starting point of trench excavation. According to the trench excavation shape, the shape of the compactor is adjusted. By adjusting the position of the limiting main plate 512 and the limiting secondary plate 503, the angle between the compaction main plate 502 and the compaction secondary plate 501 is adjusted so that the compactor meets the compaction requirements of trenches of different shapes.

[0056] Based on the width and depth of the trench design, a trench wall compaction mechanism 5 is configured. In this embodiment, one trench wall compaction mechanism 5 is configured. Different trench devices can use different numbers of trench wall compaction mechanisms 5. The trench frame 1 has a corresponding number of compaction side holes corresponding to the trench wall compaction mechanism 5. Then, as needed, the limiting main plate 512 in the limiting main hole 513 and the limiting secondary plate 503 in the limiting secondary hole 504 are moved. Then, the angle between the compaction secondary plate 501 and the compaction main plate 502 is adjusted by the compaction rotating shaft 506 to adjust the compactor to the angle that matches the shape of the trench. Then, the limiting locking shaft 515 in the compaction rotating shaft 506 is rotated so that the limiting locking plate 514 in the fan-shaped locking hole 517 is inserted into the corresponding limiting locking slot 516 to complete the precise fixing of the angle of the compaction secondary plate 501. The tunneling and soil conveying mechanism is checked. The initial tunneling angle of the tunneling drum 407 is adjusted by the extension and retraction of the hydraulic adjusting arm 404 and the hydraulic telescopic arm 401 to ensure that the breaking teeth 408 have good contact with the ground.

[0057] When adjusting the angle between the compaction sub-plate 501 and the compaction main plate 502, such as Figure 13 As shown, if the cross-section of the trench is rectangular, the limiting main plate 512 and the limiting secondary plate 503 need to be moved so that the limiting secondary plate 503 at one end protrudes out of the limiting secondary hole 504. The two ends of the limiting main plate 512 and the limiting secondary plate 503 at the other end are located in the limiting main hole 513 and the limiting secondary hole 504, respectively, so that the compaction main plate 502 and the compaction secondary plate 501 are on the same plane, which facilitates the compactor to perform vertical compaction on the side wall of the excavated rectangular trench.

[0058] like Figure 14 As shown, if the cross-section of the test trench is arc-shaped, the limiting main plate 512 and the limiting secondary plate 503 are moved so that they are fully inserted into the corresponding limiting main hole 513 and limiting secondary hole 504, respectively. At this time, the limiting main plate 512 and the limiting secondary plate 503 will not affect the angle adjustment between the compaction main plate 502 and the compaction secondary plate 501. Then, according to the curvature of the arc, the angle between the compaction main plate 502 and the compaction secondary plate 501 is adjusted. Specifically, a tool is inserted into the inner groove at the end of the limiting clamping shaft 515 in each compaction shaft 506. The limiting clamping shaft 515 is rotated, and the limiting clamping shaft 515 rotates within the compaction shaft 506. The limiting clamping plate 514 rotates along the fan-shaped clamping hole 517, so that the limiting clamping plate 514 is inserted into the corresponding limiting clamping groove 516, thereby fixing the angle between the compaction main plate 502 and the compaction secondary plate 501. This allows the compactor to form an arc-shaped test trench sidewall.

[0059] S2, tunneling operation; The tunneling structure 4 is started, and the tunneling motor 405 drives the tunneling drum 407 to rotate through the tunneling roller 406. The breaking teeth 408 on the tunneling drum 407 are used to break the soil of the mountain. Then, the angle of the hydraulic telescopic arm 401 is adjusted by the hydraulic adjusting arm 404 in conjunction with the adjusting shaft 403. The hydraulic telescopic arm 401 rotates along the tunneling shaft 402 on the trench frame 1. The hydraulic telescopic arm 401 gradually extends downward according to the set depth of the trench to realize the initial excavation of the trench.

[0060] S3, Soil and rock collection and transportation; The soil conveying structure 3 uses a bucket to collect the crushed soil-rock mixture. The hydraulic shovel pusher 301 extends and moves along the inclined shovel chute on the trench frame 1 to a suitable position, causing the bucket 303 to descend to the excavation face. The bucket adjustment pusher 305 adjusts the bucket angle via the bucket shaft 304. The bucket adjustment shaft 306 facilitates angle adjustment of the bucket 303, shoveling the crushed soil-rock mixture into the bucket 303 for collection. Then, the hydraulic shovel pusher 301 retracts, causing the bucket 303 to tilt upwards above the soil conveying chute via the shovel shaft 302. The bucket adjustment pusher 305 then adjusts the bucket 303 angle via the bucket shaft 304, causing the bucket 303 to rise along the shovel chute and pour the soil-rock mixture into the inclined shovel chute. The mixture is then transported via the shovel chute to the screening cylinder 601 of the soil-rock separation structure in the separation and storage mechanism 6.

[0061] S4. Separation of soil and rock; After the soil and rock mixture enters the screening cylinder 601, the vibrator is started. The excitation force is transmitted to the screening ears 602 of the screening cylinder 601 through the screening rod 603, causing the screening cylinder 601 to vibrate. This causes the horizontal screening plate 607 on the screening interval 608 to separate the soil and rock mixture. The soil and rock mixture in the screening cylinder 601 jumps and rolls continuously on the inclined horizontal screening plate 607. Smaller soil particles fall into the rear conical screening chamber 604 through the screen holes on the horizontal screening plate 607 under the action of gravity and vibration. Larger soil and rock particles are intercepted in the front conical screening chamber 606, thus forming a separation process for the soil and rock mixture.

[0062] S5. Storage of soil; The soil and rocks in the front conical screening chamber 606 and the rear conical screening chamber 604 respectively enter the corresponding screw conveyors 605. The screw conveyors 605 convey the soil and rocks upward to the storage guide plate 610. Under the action of their own gravity, the soil and rocks cause the storage guide plate 610 to rotate downward around the storage guide shaft 609. The soil and rocks continuously output by the screw conveyor 605 are pushed along the inclined storage guide plate 610 towards the tail end of the trench frame 1 and stored in an orderly manner. When the screw conveyor 605 stops conveying, the guide spring 611 pulls the storage guide plate 610 upward to reset to the initial position.

[0063] S6. Compact the trench walls; During the trench excavation process, the compaction motor is started simultaneously. The compaction motor meshes with the compaction wheel teeth 510 on the inner side of the fan ring compaction groove 511 through the compaction gear, driving the compaction connecting rod 507 to rotate around the compaction adjustment shaft along the compaction bearing 508. The counterweight block 509 moves accordingly, thereby realizing the continuous adjustment of the angle between the compactor and the trench wall. During the compactor adjustment process, the main compaction push rod 505 pushes the main compaction plate 502 and the secondary compaction plate 501 close to the trench wall to continuously compact the trench wall, thereby realizing the gradual compaction treatment of the trench sidewall. When the trench wall at the tail end of the trench is compacted, the trench excavation is completed. After the trench device is controlled to complete the withdrawal from the trench, the trench device is poured into the excavated trench to compact the tail end of the trench.

[0064] S7, Trenching Propulsion; After the excavation, separation, storage and compaction of a section of the trench are completed, the tracked drive wheel 2 drives the trench device forward a set distance, repeating steps S2-S6 until the excavation, separation, storage and compaction of the entire trench is completed. During this period, the parameters of each mechanism can be adjusted at any time according to the actual construction situation to ensure construction efficiency and safety.

[0065] Example 3 A trenching device and method for mountainous areas differs from Embodiment 1 in that: the end of the limiting shaft 515 is provided with a detachable adjustment handle, the adjustment handle is provided with an adjustment mark, and the adjustment mark cooperates with the scale ring provided at the end of the compaction shaft 506; the limiting main plate 512 is provided with a limiting motor, and the movable end of the limiting motor meshes with the limiting gear teeth provided on the limiting main plate 512 through gears.

[0066] Example 4 A trenching device and method for mountainous areas differs from Embodiment 1 in that: compaction connecting rod 507 is symmetrically provided with compaction auxiliary push rods connected to compaction auxiliary plate 501 on both sides, and the two ends of the compaction auxiliary push rods are rotatably connected to compaction connecting rod 507 and compaction auxiliary plate 501 respectively through push rod rotating shafts.

[0067] Example 5 A method and device for grooving in mountainous areas differs from Embodiment 1 in that: a grooving guide bar is provided at the bottom of the horizontal grooving plate 607, and the grooving guide bar engages with a grooving guide groove provided at the top of the grooving interval 608; a grooving side groove is provided on the grooving cylinder 601, which is in clearance fit with the horizontal grooving plate 607, and a grooving roller is provided in the grooving side groove, which engages with a grooving roller groove provided on the side of the horizontal grooving plate 607; a reciprocating spring is provided in the grooving cylinder 601, which is connected to the horizontal grooving plate 607, and a curved grooving protrusion is provided at the bottom of the horizontal grooving plate 607.

[0068] The above description is only a preferred embodiment of the present invention, but is not limited to the above examples. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A trenching device for mountainous areas, comprising a trenching frame, wherein tracked drive wheels are mounted on the trenching frame, characterized in that, The trenching frame is equipped with a tunneling and soil conveying mechanism at its head end, which is connected to a separation and storage mechanism set on the trenching frame. The trenching frame is equipped with at least one trench wall compaction mechanism, which includes a compaction connecting rod set on the trenching frame, and a compactor is provided at the end of the compaction connecting rod away from the trenching frame.

2. The trenching device for mountainous areas according to claim 1, characterized in that, The compactor includes a compaction main plate connected to a compaction connecting rod. At least one pair of compaction auxiliary plates are symmetrically arranged on both sides of the compaction main plate and are rotatably connected to the compaction main plate via a compaction rotating shaft. A limiting main hole is provided on the side of the compaction main plate, and the limiting main hole corresponds to the limiting auxiliary hole provided on the side of the compaction auxiliary plate. A limiting main plate is provided in the limiting main hole, and the limiting main plate is rotatably connected to the limiting auxiliary plate provided in the limiting auxiliary hole.

3. The trenching device for mountainous areas according to claim 2, characterized in that, The compaction shaft is fitted with a limiting pin, which is connected to a limiting plate through a fan-shaped locking hole on the compaction shaft. The limiting plate engages with multiple limiting slots on the side of the limiting sub-plate.

4. The trenching device for mountainous areas according to claim 3, characterized in that, The trenching machine frame is equipped with a compaction adjustment shaft, which is connected to the compaction connecting rod via a compaction bearing installed inside the compaction connecting rod. The end of the compaction connecting rod away from the compactor is equipped with a detachable counterweight block, which is equipped with a fan-shaped compaction groove. The fan-shaped compaction groove cooperates with the compaction motor installed on the trenching machine frame. The compaction connecting rod is equipped with a main compaction push rod connected to the main compaction plate.

5. The trenching device for mountainous areas according to claim 1, characterized in that, The tunneling and soil conveying mechanism includes a tunneling structure installed at the head end of the trench frame, which cooperates with a soil conveying structure installed inside the trench frame; the tunneling structure includes hydraulic telescopic arms installed on both sides of the head end of the trench frame, the ends of the hydraulic telescopic arms are connected by a tunneling drum, and the tunneling drum cooperates with a tunneling motor installed on the hydraulic telescopic arms.

6. The trenching device for mountainous areas according to claim 5, characterized in that, The soil conveying structure includes a bucket installed inside the trenching frame, a soil-shoveling shaft on the bucket, and a hydraulic soil-shoveling push rod inclined on the trenching frame; a bucket shaft on the bucket, and a bucket adjustment push rod rotatably connected to the hydraulic soil-shoveling push rod via a bucket adjustment shaft; and a soil conveying chute inclined inside the trenching frame.

7. The trenching device for mountainous areas according to claim 6, characterized in that, The hydraulic telescopic boom is rotatably connected to the trenching frame via a tunneling shaft; the trenching frame is equipped with a hydraulic adjusting arm, the two ends of which are rotatably connected to the hydraulic telescopic boom and the trenching frame respectively via adjusting shafts; the tunneling drum is evenly distributed with breaking teeth.

8. The trenching device for mountainous areas according to claim 1 or 6, characterized in that, The separation and storage mechanism includes a soil-rock separation structure and a soil storage structure connected to the soil-rock separation structure; the soil-rock separation structure includes a screening cylinder installed inside the trench frame and connected to the tail end of the excavation and soil conveying mechanism, with a horizontally placed screening plate inclinedly installed inside the screening cylinder, and the horizontally placed screening plate connected to the screening interval installed inside the screening cylinder; a front conical screening chamber and a rear conical screening chamber are respectively provided on both sides of the screening interval on the bottom surface of the screening cylinder; screening ears are provided at both ends of the screening cylinder, and the screening ears are connected to a vibrator installed on the trench frame through a screening rod.

9. The trenching device for mountainous areas according to claim 8, characterized in that, The soil storage structure includes screw conveyors respectively installed inside the trench frame and connected to the bottom ends of the front and rear conical screening chambers. The top of the screw conveyor is provided with a storage guide plate whose end is inclined towards the tail end of the trench frame. The end of the storage guide plate is rotatably connected to the screw conveyor through a storage guide shaft. A guide spring that cooperates with the storage guide plate is sleeved on the storage guide shaft.

10. The method of using the trenching device for mountainous areas according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Positioning and adjustment of the trenching device; The trenching device, transported to a suitable location in the mountainous area, is driven by tracked wheels to the trench to be excavated. Based on the preset trench location, the angle of the hydraulic telescopic arm is adjusted by the hydraulic adjusting arm to align the tunneling drum with the starting point of the trench excavation. According to the trench excavation shape, the shape of the compactor is adjusted. By adjusting the position of the limiting main plate and the limiting secondary plate, the angle between the compactor main plate and the compactor secondary plate is adjusted so that the compactor meets the compaction requirements of trenches of different shapes. S2, tunneling operation; The tunneling motor is started to drive the tunneling drum to rotate. The breaking teeth on the tunneling drum are used to break up the soil in the mountain. At the same time, the hydraulic telescopic boom extends downwards gradually according to the set depth of the trench to realize the initial excavation of the trench. S3, Soil and rock collection and transportation; The crushed soil and rock mixture is collected using the bucket. The hydraulic shovel push rod is activated, and the bucket is tilted upward and moved above the soil conveying chute via the shovel shaft. Then, the bucket adjustment rod is used to adjust the bucket angle via the bucket shaft, and the soil and rock mixture is poured into the soil conveying chute, which then transports it to the soil and rock separation structure. S4. Separation of soil and rock; After the soil and rock mixture enters the screening cylinder, the vibrator drives the screening cylinder to vibrate through the screening rod, which in turn drives the horizontal screening plate to separate the soil and rock mixture. This causes the smaller soil particles to fall into the rear conical screening chamber through the horizontal screening plate, while the larger soil and rock particles remain in the front conical screening chamber. S5. Storage of soil; The soil and rocks in the front and rear conical screening chambers enter the corresponding screw conveyors respectively. The screw conveyors transport the soil and rocks upward to the storage guide plate. The storage guide plate rotates around the storage guide shaft under the action of the soil and rocks, storing the soil and rocks on both sides of the tail end of the soil and rocks guide trench frame. The guide spring resets the storage guide plate after the soil and rocks are transported. S6. Compact the trench walls; During the trench excavation process, the compaction motor meshes with the compaction wheel teeth on the inner side of the fan ring compaction groove through the compaction gear, driving the compaction connecting rod to rotate around the compaction adjustment shaft, thereby adjusting the angle between the compactor and the trench wall. After the compactor is adjusted, the main compaction push rod pushes the main compaction plate and the secondary compaction plate close to the trench wall to perform compaction operation on the trench wall. S7, Trenching Propulsion; After the excavation, separation, storage and compaction of a section of the trench are completed, the tracked drive wheel drives the trenching device forward a set distance, and steps S2-S6 are repeated until the excavation of the entire trench is completed.

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