Ditching device for electric power wiring
By designing a trenching device for power wiring with an adjustable trenching component and a rotary drive component, the problem of fixed trench width in traditional trenching devices is solved, the trench width can be flexibly adjusted, and work efficiency and practicality are improved.
Patent Information
- Application Number
- CN202422851395.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The width of the trench opened by the traditional trenching device is fixed and cannot be adjusted, which means that it needs to be used multiple times when a wider trench needs to be opened, wasting manpower, material resources and time.
A trenching device for power wiring is designed, which includes an adjustable trenching assembly and a rotary drive assembly. The trench width can be adjusted by cooperating with the distance adjustment mechanism and the sprocket mechanism. The staggered distribution of the driving cylinder and the sprocket teeth ensures the flexible adjustment of the trench width.
The trenching device is capable of trenching trenches of different widths, thereby improving efficiency and practicality and reducing the need for repetitive work.
Smart Images
Figure CN223373777U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric power construction, in particular to a trenching device for electric power wiring. Background Art
[0002] A cable trench is an underground conduit used for laying and replacing power or telecommunication cable facilities. It is also the enclosure structure for the laid cable facilities. Direct buried cable trench is one type of cable trench. It involves excavating a trench on the natural ground, laying the cable in the trench, and finally filling the trench.
[0003] In the past, trench excavation was typically done manually or with an excavator. Manual excavation is inefficient and physically demanding, and to reduce labor intensity, trenching devices were developed to improve work efficiency. A trenching device is a device used to create a trench in the soil during cable laying. However, with the advancement of technology, the requirements for trenching devices for cable laying have become increasingly stringent, resulting in traditional trenching devices no longer being able to meet these requirements.
[0004] When using the existing trenching device, the width of the trenching device is fixed after production and cannot be adjusted. Therefore, when a wider trench needs to be opened, the device needs to be moved back and forth on both sides of the same trench to open the trench, resulting in the device needing to be used multiple times. At the same time, it also requires a waste of manpower, material resources and time to repeat the work, which seriously affects the use effect of the device. Therefore, it is urgent to design a trenching device for power wiring to solve the above problems. Utility Model Content
[0005] The present invention aims to solve the technical problems existing in the prior art and provides a trenching device for power wiring with a reasonable structural design. The present invention can solve the problem of fixed width trenches opened by conventional trenching devices and can open trenches of different widths, thereby improving the practicality of the trenching device.
[0006] The utility model adopts the following technical solutions to solve the technical problems existing in the known technology: a trenching device for electric wiring includes a mounting bridge for mounting on a driving vehicle, an adjustable trenching assembly is pivotally connected to the mounting bridge, a driving oil cylinder for driving the adjustable trenching assembly to swing up and down is installed between the mounting bridge and the adjustable trenching assembly; the utility model also includes a rotary drive assembly installed on the mounting bridge for driving the adjustable trenching assembly; the adjustable trenching assembly includes a fixed sprocket frame and a swing frame structure that are pivotally connected to the mounting bridge through a rotating shaft and are relatively arranged, A movable sprocket frame is slidably inserted between the sprocket frame and the swing frame structure; a fixed sprocket mechanism is installed on the fixed sprocket frame, and a plurality of first blade teeth are installed on the fixed sprocket mechanism; an adjustable sprocket mechanism is installed on the movable sprocket frame, and a plurality of second blade teeth are installed on the adjustable sprocket mechanism; the fixed sprocket mechanism and the adjustable sprocket mechanism are connected through a first spline shaft and a second spline shaft arranged in parallel; it also includes a spacing adjustment mechanism installed between the fixed sprocket frame and the movable sprocket frame, which is used to drive the movable sprocket frame to move along the spline shaft; the first blade teeth and the second blade teeth are staggered.
[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a trenching device for power wiring, which drives a fixed sprocket mechanism and an adjustable sprocket mechanism in the adjustable trenching assembly to rotate by providing an adjustable trenching assembly and a rotation drive assembly for driving the adjustable trenching assembly, thereby driving a plurality of first blade teeth and a plurality of second blade teeth to rotate, and the adjustable trenching assembly can be driven to flip around a pivot axis by providing a driving oil cylinder, thereby ensuring that the rotating plurality of first blade teeth and a plurality of second blade teeth can contact the ground, thereby enabling a trenching operation; by providing a swing frame structure, a movable sprocket frame and a fixed sprocket frame that are slidably plugged in, the width between the adjustable sprocket mechanism and the fixed sprocket mechanism is adjustable, by providing a distance adjustment mechanism, the width between the adjustable sprocket mechanism and the fixed sprocket mechanism can be automatically adjusted, by providing a first spline shaft and a second spline shaft, the adjustable sprocket mechanism and the fixed sprocket mechanism can be ensured to rotate synchronously before and after adjustment, ultimately solving the problem of a fixed width of a trench opened by a traditional trenching device, enabling trenches of different widths to be opened, and improving the practicality of the trenching device.
[0008] Preferably: the pitch adjustment mechanism includes a pitch adjustment seat plate fixed to the fixed sprocket frame, a pitch adjustment guide seat fixed to the pitch adjustment seat plate, a pitch adjustment circular rack and a pitch adjustment guide rod slidingly connected thereto and arranged in parallel are passed through the pitch adjustment guide seat, the ends of the pitch adjustment circular rack and the pitch adjustment guide rod are connected to the movable sprocket frame; it also includes a pitch adjustment motor fixed to the pitch adjustment seat plate, a drive gear keyed to the output shaft of the pitch adjustment motor, and the drive gear meshes with the pitch adjustment circular rack.
[0009] Preferably: the fixed sprocket mechanism includes a driven sprocket rotatably connected to the outer end of the fixed sprocket frame, also includes a driving sprocket keyed to the second spline shaft, and also includes a supporting sprocket keyed to the first spline shaft, a chain is transmission-connected between the driving sprocket, the driven sprocket and the support sprocket, and a plurality of first teeth are mounted on the chain; the adjustable sprocket mechanism includes a driven sprocket rotatably connected to the outer end of the movable sprocket frame, also includes a driving sprocket mounted on the second spline shaft and mated with its splines, and also includes a supporting sprocket mounted on the first spline shaft and mated with its splines, a chain is transmission-connected between the driving sprocket, the driven sprocket and the support sprocket, and a plurality of second teeth are mounted on the chain.
[0010] Preferably: the adjustable ditching assembly also includes a follower pivot seat fixed on the swing frame structure, and also includes a fixed pivot seat fixed on the fixed sprocket frame, and a pivot shaft is fixed on the follower pivot seat and the fixed pivot seat, and the two groups of pivot shafts are coaxially arranged, and two groups of driving cylinders are provided, and the protruding ends of the two groups of driving cylinders are connected to the pivot shaft.
[0011] Preferably: the rotary drive assembly includes a gearbox and a reducer fixed on the mounting bridge, an input transmission pair is installed between the output shaft of the gearbox and the input shaft of the reducer, a sprocket transmission pair is installed between the output shaft of the reducer and the second spline shaft, and also includes a tensioning mechanism installed on the mounting bridge and connected to the sprocket transmission pair; and also includes a drive motor connected to the gearbox.
[0012] Preferably: the tensioning mechanism includes a tensioning mounting seat installed on the mounting bridge, two sets of sliding guide bars arranged opposite to each other are fixedly connected to the tensioning mounting seat, a sprocket sliding seat slidingly matched with the two sets of sliding guide bars is inserted between the two sets of sliding guide bars, a tensioning sprocket engaged with the sprocket transmission pair is rotatably connected to the sprocket sliding seat, and also includes a spring tensioning seat fixed on the tensioning mounting seat and arranged opposite to the sprocket sliding seat, spring guide rods are fixedly connected to the opposite surfaces of the spring tensioning seat and the sprocket sliding seat, and also includes a tensioning spring arranged between the spring tensioning seat and the sprocket sliding seat and sleeved on the two sets of spring guide rods.
[0013] Preferably: it also includes a mudguard structure installed on the mounting bridge; the mudguard structure includes two groups of mudguard mounting rods fixedly connected to the mounting bridge, the two groups of mudguard mounting rods are arranged in parallel, and a mudguard for mudguarding is installed at the outer end of each mudguard mounting rod; each mudguard is disc-shaped. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the adjustable ditching assembly in the utility model;
[0016] Figure 3 yes Figure 2 A magnified schematic diagram of area A;
[0017] Figure 4 It is a three-dimensional structural diagram of the distance adjustment mechanism in the utility model;
[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotary drive assembly in the present utility model;
[0019] Figure 6 It is a three-dimensional structural diagram of the tensioning mechanism in the utility model.
[0020] In the figure: 1. Mounting bridge; 2. Adjustable trenching assembly; 2-1. Pitch adjustment mechanism; 2-1-1. Pitch adjustment seat plate; 2-1-2. Pitch adjustment guide seat; 2-1-3. Pitch adjustment round rack; 2-1-4. Pitch adjustment motor; 2-1-5. Pitch adjustment guide rod; 2-1-6. Rod mounting member; 2-2. Fixed sprocket mechanism; 2-3. Fixed sprocket frame; 2-4. First cutter tooth; 2-5. Second cutter tooth; 2-6. Adjustable sprocket mechanism; 2-7. Movable sprocket frame; 2-8. Follow-up pivot seat; 2-9. Swing frame structure; 2-10. Fixed pivot Seat; 2-11, first spline shaft; 2-12, second spline shaft; 3, mudguard structure; 3-1, mudguard; 3-2, mudguard mounting rod; 4, driving cylinder; 5, rotary drive assembly; 5-1, reducer; 5-2, input transmission pair; 5-3, gearbox; 5-4, tensioning mechanism; 5-4-1, tensioning sprocket; 5-4-2, sprocket sliding seat; 5-4-3, sliding guide bar; 5-4-4, tightening spring; 5-4-5, tensioning mounting seat; 5-4-6, spring tightening seat; 5-4-7, spring guide rod; 6, driving vehicle. DETAILED DESCRIPTION
[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail:
[0022] See Figure 1 The utility model comprises a trenching device for power wiring, comprising a mounting bridge 1 for mounting on a driving vehicle 6, an adjustable trenching assembly 2 being pivotally connected to the mounting bridge 1, and a driving cylinder 4 for driving the adjustable trenching assembly 2 to swing up and down being installed between the mounting bridge 1 and the adjustable trenching assembly 2;
[0023] like Figure 2 and Figure 3As shown, the adjustable ditching assembly 2 includes a fixed sprocket frame 2-3 and a swing frame structure 2-9 that are pivotally connected to the mounting bridge 1 through a rotating shaft and are arranged opposite to each other. A movable sprocket frame 2-7 is slidably inserted between the fixed sprocket frame 2-3 and the swing frame structure 2-9. The two ends of the movable sprocket frame 2-7 are slidably inserted on the fixed sprocket frame 2-3 and the swing frame structure 2-9 respectively. The movable sprocket frame 2-7 is provided with a strip hole extending along its length. The movable sprocket frame 2-7 is locked and connected to the fixed sprocket frame 2-3 and the swing frame structure 2-9 by screws and locking nuts inserted into the above-mentioned strip holes. In addition, a rotating shaft is fixed to the ends of the swing frame structure 2-9 and the fixed sprocket frame 2-3. The two sets of rotating shafts are coaxially arranged and pivotally connected to the mounting bridge 1 through rolling bearings.
[0024] like Figure 2 and Figure 3 As shown, a fixed sprocket mechanism 2-2 is mounted on a fixed sprocket frame 2-3, and a plurality of first blade teeth 2-4 are mounted on the fixed sprocket mechanism 2-2. An adjustable sprocket mechanism 2-6 is mounted on a movable sprocket frame 2-7, and a plurality of second blade teeth 2-5 are mounted on the adjustable sprocket mechanism 2-6. The first blade teeth 2-4 and the second blade teeth 2-5 are staggered, i.e., the plurality of second blade teeth 2-5 are located between two adjacent groups of first blade teeth 2-4, and similarly, the plurality of first blade teeth 2-4 are located between two adjacent groups of second blade teeth 2-5, thereby ensuring that no bulge is left in the middle of the completed ditch. The fixed sprocket mechanism 2-2 and the adjustable sprocket mechanism 2-6 are connected by a first spline shaft 2-11 and a second spline shaft 2-12 arranged in parallel.
[0025] like Figure 3 As shown, bearing seat plates are fixed to the inner ends of the fixed sprocket frame 2-3 and the swing frame structure 2-9, and the second spline shaft 2-12 is rotatably connected to the bearing seat plate through a rolling bearing; the first spline shaft 2-11 is rotatably connected to the fixed sprocket frame 2-3 and the swing frame structure 2-9 through a seat bearing.
[0026] like Figure 2 and Figure 3As shown, the fixed sprocket mechanism 2-2 includes a driven sprocket rotatably connected to the outer end of the fixed sprocket frame 2-3, a driving sprocket keyed to the second spline shaft 2-12, and a supporting sprocket keyed to the first spline shaft 2-11, a chain is connected for transmission between the driving sprocket, the driven sprocket and the supporting sprocket, and a plurality of first teeth 2-4 are mounted on the above-mentioned chain; the adjustable sprocket mechanism 2-6 includes a driven sprocket rotatably connected to the outer end of the movable sprocket frame 2-7, a driving sprocket mounted on the second spline shaft 2-12 and splined to cooperate with the driving sprocket, and a supporting sprocket mounted on the first spline shaft 2-11 and splined to cooperate with the driving sprocket, a chain is connected for transmission between the driving sprocket, the driven sprocket and the supporting sprocket, and a plurality of second teeth 2-5 are mounted on the chain.
[0027] In addition, a shaft sleeve is installed on the rotating shaft of the driven sprocket of the adjustable sprocket mechanism 2-6, and a strip hole extending along its axial direction is opened on the outer peripheral wall of the shaft sleeve. The rotating shaft of the driven sprocket of the fixed sprocket mechanism 2-2 is slidably inserted in the above-mentioned shaft sleeve and is slidably connected to the shaft sleeve through a screw passed through the strip hole opened on the shaft sleeve.
[0028] like Figure 2 As shown, the adjustable ditching assembly 2 also includes a spacing mechanism 2-1 installed between the fixed sprocket frame 2-3 and the movable sprocket frame 2-7, which is used to drive the movable sprocket frame 2-7 to move along the spline shaft.
[0029] See further Figure 4 The above-mentioned pitch adjustment mechanism 2-1 includes a pitch adjustment seat plate 2-1-1 fixed on the fixed sprocket frame 2-3, a pitch adjustment guide seat 2-1-2 fixed on the pitch adjustment seat plate 2-1-1, and a pitch adjustment circular rack 2-1-3 and a pitch adjustment guide rod 2-1-5 slidingly connected thereto and arranged in parallel are passed through the pitch adjustment guide seat 2-1-2. The pitch adjustment circular rack 2-1-3 and the pitch adjustment guide rod 2-1-5 are both arranged horizontally and their ends are connected to the movable sprocket frame 2-7; it also includes a pitch adjustment motor 2-1-4 fixed on the pitch adjustment seat plate 2-1-1, the output shaft of the pitch adjustment motor 2-1-4 is arranged longitudinally, and a drive gear is keyed to the output shaft of the pitch adjustment motor 2-1-4, and the drive gear is meshed with the pitch adjustment circular rack 2-1-3. The pitch-adjusting circular rack 2-1-3 and the pitch-adjusting guide rod 2-1-5 are both fixedly connected to the movable sprocket frame 2-7 through the rod mounting member 2-1-6; a through groove is provided on the pitch-adjusting guide seat 2-1-2, and the above-mentioned driving gear is arranged in the through groove and is clearance-matched with the pitch-adjusting guide seat 2-1-2.
[0030] like Figure 2As shown, the adjustable trenching assembly 2 in this embodiment also includes a follower pivot seat 2-8 fixedly connected to the swing frame structure 2-9, and a fixed pivot seat 2-10 fixedly connected to the fixed sprocket frame 2-3. Pivot shafts are fixedly connected to both the follower pivot seat 2-8 and the fixed pivot seat 2-10, and the two sets of pivot shafts are arranged coaxially. Two sets of drive cylinders 4 are provided, and the extended ends of the two sets of drive cylinders 4 are connected to the pivot shafts. The cylinder barrel of each drive cylinder 4 is pivotally connected to the mounting bridge 1 via a pin; a fisheye joint is installed at the extended end of each drive cylinder 4, and is pivotally connected to the pivot shafts fixed to both the follower pivot seat 2-8 and the fixed pivot seat 2-10 via the fisheye joint.
[0031] See further Figure 1 This embodiment also includes a rotary drive assembly 5 installed on the mounting bridge 1 for driving the adjustable ditching assembly 2.
[0032] like Figure 5 As shown, the rotary drive assembly 5 includes a gearbox 5-3 and a reducer 5-1 fixed to a mounting bridge 1. An input drive pair 5-2 is mounted between the output shaft of the gearbox 5-3 and the input shaft of the reducer 5-1. The input drive pair 5-2 utilizes a sprocket drive pair. A sprocket drive pair is mounted between the output shaft of the reducer 5-1 and the second spline shaft 2-12. The assembly also includes a tensioning mechanism 5-4 mounted on the mounting bridge 1 and drivingly connected to the sprocket drive pair. Furthermore, the assembly also includes a drive motor connected to the gearbox 5-3.
[0033] Among them, the above-mentioned gearbox 5-3 includes a box structure installed on the mounting bridge 1, a horizontally arranged driven shaft is rotatably connected in the box structure, the input transmission pair 5-2 is installed on the above-mentioned driven shaft, and a driven bevel gear is keyed to the driven shaft. It also includes a driving shaft rotatably connected in the box structure and perpendicular to the above-mentioned driven shaft, the output shaft of the above-mentioned drive motor is connected to the driving shaft, and a driving bevel gear meshing with the above-mentioned driven bevel gear is keyed to the driving shaft.
[0034] The sprocket transmission pair installed between the reducer 5-1 and the second spline shaft 2-12 includes a driving sprocket keyed to the output shaft of the reducer 5-1, and also includes a driven sprocket keyed to the second spline shaft 2-12, and a drive chain is connected between the driving sprocket and the driven sprocket.
[0035] See further Figure 6The above-mentioned tensioning mechanism 5-4 includes a tensioning mounting seat 5-4-5 installed on the mounting bridge 1, two sets of sliding guide bars 5-4-3 arranged opposite to each other are fixedly connected to the tensioning mounting seat 5-4-5, a sprocket sliding seat 5-4-2 slidingly matched with the two sets of sliding guide bars 5-4-3 is inserted between the two sets of sliding guide bars 5-4-3, a tensioning sprocket 5-4-1 meshing with the sprocket transmission pair is rotatably connected to the sprocket sliding seat 5-4-2, and also includes a spring tightening seat 5-4-6 fixed on the tensioning mounting seat 5-4-5 and arranged opposite to the sprocket sliding seat 5-4-2, spring guide rods 5-4-7 are fixedly connected to the opposite surfaces of the spring tightening seat 5-4-6 and the sprocket sliding seat 5-4-2, and also includes a tightening spring 5-4-4 arranged between the spring tightening seat 5-4-6 and the sprocket sliding seat 5-4-2 and sleeved on the two sets of spring guide rods 5-4-7. The above-mentioned sliding guide bar 5-4-3 is arranged longitudinally, thereby ensuring that when the adjustable trenching assembly 2 swings, the rotary drive assembly 5 can stably drive the adjustable trenching assembly 2 to operate.
[0036] like Figure 1 As shown, this embodiment also includes a mud retaining structure 3 installed on the mounting bridge 1, see further Figure 5 The above-mentioned mudguard structure 3 includes two groups of mudguard mounting rods 3-2 fixed on the mounting bridge 1. The two groups of mudguard mounting rods 3-2 are arranged in parallel, and a mudguard 3-1 for mudguarding is installed at the outer end of each mudguard mounting rod 3-2; each mudguard 3-1 is disc-shaped.
[0037] Working principle:
[0038] During the actual working process, the mounting bridge 1 is installed on the driving vehicle 6, and the driving vehicle 6 drives the ditching device to move to the ditching position, and the rotation of the chain in the fixed sprocket mechanism 2-2 and the adjustable sprocket mechanism 2-6 drives the first blade teeth 2-4 and the second blade teeth 2-5 to rotate, and the extension of the piston rod of the driving cylinder 4 drives the adjustable ditching assembly 2 to flip downward as a whole, so that the rotating first blade teeth 2-4 and the second blade teeth 2-5 contact the ground, and then the ditching work is carried out; when the ditching width needs to be increased, the pitch-adjusting motor 2-1-4 in the pitch-adjusting mechanism 2-1 is started to drive the driving gear installed thereon to rotate, and then drives the pitch-adjusting circular rack 2-1- 3 moves laterally, thereby pushing the movable sprocket frame 2-7 to move away from the fixed sprocket frame 2-3. After moving to the appropriate position, the swing frame structure 2-9 and the movable sprocket frame 2-7, as well as the movable sprocket frame 2-7 and the fixed sprocket frame 2-3 are locked and connected, thereby realizing width adjustment, so that the width of the trench is increased; it is worth noting that in the actual working process, the above-mentioned plurality of first blade teeth 2-4 and the plurality of second blade teeth 2-5 are staggered, that is, the plurality of second blade teeth 2-5 are all located between two adjacent groups of first blade teeth 2-4, and similarly, the plurality of first blade teeth 2-4 are all located between two adjacent groups of second blade teeth 2-5, thereby ensuring that no bulge is left in the middle part of the completed trench.
Claims
1. A trenching device for power wiring, characterized by: The invention comprises a mounting bridge (1) for mounting with a driving vehicle (6), an adjustable ditching assembly (2) being pivotally connected to the mounting bridge (1), and a driving oil cylinder (4) for driving the adjustable ditching assembly (2) to swing up and down being installed between the mounting bridge (1) and the adjustable ditching assembly (2); a rotary drive assembly (5) mounted on the mounting bridge (1) for driving the adjustable ditching assembly (2); the adjustable ditching assembly (2) comprising a fixed sprocket frame (2-3) and a swing frame structure (2-9) which are pivotally connected to the mounting bridge (1) via a rotating shaft and are arranged opposite to each other, a movable sprocket frame (2-7) being slidably inserted between the fixed sprocket frame (2-3) and the swing frame structure (2-9); a rotating drive assembly (5) mounted on the mounting bridge (1) for driving the adjustable ditching assembly (2) A fixed sprocket mechanism (2-2) is installed, a plurality of first blade teeth (2-4) are installed on the fixed sprocket mechanism (2-2), an adjustable sprocket mechanism (2-6) is installed on a movable sprocket frame (2-7), and a plurality of second blade teeth (2-5) are installed on the adjustable sprocket mechanism (2-6); the fixed sprocket mechanism (2-2) and the adjustable sprocket mechanism (2-6) are connected via a first spline shaft (2-11) and a second spline shaft (2-12) arranged in parallel; and a spacing adjustment mechanism (2-1) is also included, which is installed between the fixed sprocket frame (2-3) and the movable sprocket frame (2-7) and is used for driving the movable sprocket frame (2-7) to move along the spline shaft; the first blade teeth (2-4) and the second blade teeth (2-5) are staggered.
2. The trenching device for power wiring according to claim 1, wherein: The pitch adjustment mechanism (2-1) includes a pitch adjustment seat plate (2-1-1) fixedly connected to a fixed sprocket frame (2-3), a pitch adjustment guide seat (2-1-2) fixedly connected to the pitch adjustment seat plate (2-1-1), a pitch adjustment circular rack (2-1-3) and a pitch adjustment guide rod (2-1-5) slidingly connected and arranged in parallel with the pitch adjustment guide seat (2-1-2), and ends of the pitch adjustment circular rack (2-1-3) and the pitch adjustment guide rod (2-1-5) are connected to a movable sprocket frame (2-7); and also includes a pitch adjustment motor (2-1-4) fixedly connected to the pitch adjustment seat plate (2-1-1), a drive gear key-connected to the output shaft of the pitch adjustment motor (2-1-4), and the drive gear meshes with the pitch adjustment circular rack (2-1-3).
3. The trenching device for power wiring according to claim 1, wherein: The fixed sprocket mechanism (2-2) includes a driven sprocket rotatably connected to the outer end of the fixed sprocket frame (2-3), a driving sprocket key-connected to the second spline shaft (2-12), and a supporting sprocket key-connected to the first spline shaft (2-11); a chain is connected between the driving sprocket, the driven sprocket and the supporting sprocket, and a plurality of first blade teeth (2-4) are mounted on the chain; the adjustable sprocket mechanism (2-6) includes a driven sprocket rotatably connected to the outer end of the movable sprocket frame (2-7), a driving sprocket mounted on the second spline shaft (2-12) and spline-matched with the second spline shaft (2-12), and a supporting sprocket mounted on the first spline shaft (2-11) and spline-matched with the first spline shaft (2-11); a chain is connected between the driving sprocket, the driven sprocket and the supporting sprocket, and a plurality of second blade teeth (2-5) are mounted on the chain.
4. The trenching device for power wiring according to claim 1, wherein: The adjustable ditching assembly (2) further comprises a follower pivot seat (2-8) fixedly connected to the swing frame structure (2-9), and a fixed pivot seat (2-10) fixedly connected to the fixed sprocket frame (2-3). A pivot shaft is fixedly connected to both the follower pivot seat (2-8) and the fixed pivot seat (2-10). The two sets of pivot shafts are coaxially arranged. Two sets of driving oil cylinders (4) are provided, and the protruding ends of the two sets of driving oil cylinders (4) are both connected to the pivot shaft.
5. The trenching device for power wiring according to claim 1, wherein: The rotary drive assembly (5) includes a gear box (5-3) and a reducer (5-1) fixedly connected to a mounting bridge (1); an input transmission pair (5-2) is installed between the output shaft of the gear box (5-3) and the input shaft of the reducer (5-1); a sprocket transmission pair is installed between the output shaft of the reducer (5-1) and a second spline shaft (2-12); a tensioning mechanism (5-4) is installed on the mounting bridge (1) and is transmission-connected to the sprocket transmission pair; and a drive motor is connected to the gear box (5-3).
6. The trenching device for power wiring according to claim 1, wherein: The tensioning mechanism (5-4) includes a tensioning mounting seat (5-4-5) mounted on the mounting bridge (1), two sets of sliding guide bars (5-4-3) arranged opposite to each other are fixedly connected to the tensioning mounting seat (5-4-5), a sprocket sliding seat (5-4-2) slidingly matched with the two sets of sliding guide bars (5-4-3) is inserted between the two sets of sliding guide bars (5-4-3), a tensioning sprocket (5-4-1) meshing with the sprocket transmission pair is rotatably connected to the sprocket sliding seat (5-4-2), and further includes a A spring tensioning seat (5-4-6) fixedly connected to the tensioning mounting seat (5-4-5) and arranged opposite to the sprocket sliding seat (5-4-2) is provided. Spring guide rods (5-4-7) are fixedly connected to the opposing surfaces of the spring tensioning seat (5-4-6) and the sprocket sliding seat (5-4-2). The tensioning mounting seat (5-4-5) further comprises a tensioning spring (5-4-4) sleeved on two groups of spring guide rods (5-4-7) and arranged between the spring tensioning seat (5-4-6) and the sprocket sliding seat (5-4-2).
7. The trenching device for power wiring according to claim 1, wherein: The invention also includes a mud guard structure (3) installed on the mounting bridge (1); the mud guard structure (3) includes two groups of mud guard mounting rods (3-2) fixedly connected to the mounting bridge (1); the two groups of mud guard mounting rods (3-2) are arranged in parallel; and a mud guard (3-1) for mud guarding is installed on the outer end of each mud guard mounting rod (3-2); each mud guard (3-1) is in the shape of a disc.