A concrete asphalt ground trenching machine

Abstract

The present invention discloses a trenching machine for concrete asphalt ground, including a frame, a power unit, a traveling mechanism, a cutting and crushing device, a trenching and soil dividing device and a hydraulic system. There are two traveling mechanisms, which are symmetrically arranged on both sides of the frame, and the power unit is connected to the traveling mechanism. The trenching and soil dividing device is arranged on the rear side of the vehicle body. The cutting and crushing device is arranged at the front end of the frame through a front support frame, and includes a transmission shaft, a crushing assembly, and a cutting blade. The transmission shaft is connected to the power unit through a first transmission belt. The cutting blade is arranged on the cutting blade drive shaft, and the cutting blade drive shaft is connected to the front support frame through a cradle. The crushing assembly includes a sleeve, an impact rod and an eccentric wheel. The impact rod is vertically movably arranged below the transmission shaft through the sleeve, and an impact head is arranged at the lower end thereof. The eccentric wheel is arranged on the transmission shaft. The structural design of the present invention is reasonable, cutting and crushing are performed first, and then rapid excavation is performed. The trenching depth can be adjusted to achieve deep excavation, replacing manual trenching, saving time and labor, and having high work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, and in particular to a concrete asphalt ground trenching machine. Background Art

[0002] At present, it is often necessary to dig drainage ditches in road construction and municipal engineering construction, and it is also necessary to dig trenches during the laying of pipes and cables. Most of the construction processes are done manually, but small trench diggers can also be used for digging trenches. Before manually digging hard ground, the hard ground needs to be broken, and the concrete or asphalt on the ground needs to be removed before the soil layer can be excavated. Manually breaking the hard ground is labor-intensive, time-consuming, labor-intensive, costly, and inefficient. Existing chain trench diggers, especially small trench diggers, cannot dig trenches on harder ground, such as concrete and asphalt ground, due to the chain structure. Due to the limitations of chain trench diggers, they cannot be used in many places. When some places are renovated, it is required to dig trenches on local ground without damaging the surrounding ground. Existing chain trench diggers cannot meet the above construction requirements. Therefore, it is urgent to develop trench diggers suitable for hard ground. Summary of the invention

[0003] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to propose a concrete asphalt ground trencher to solve the problems that the existing chain trencher is unable to dig trenches and local trenches on hard ground, and that manual breaking of hard ground is labor-intensive, time-consuming and labor-intensive, has high construction costs and low work efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A concrete asphalt ground trencher comprises a frame, a power unit, a traveling mechanism, a cutting and crushing device, a trenching and soil dividing device and a hydraulic system. The power unit is arranged at the front upper part of the frame. There are two traveling mechanisms, which are symmetrically arranged on the left and right sides of the frame. The power unit is connected to the traveling mechanism through a reversing box. The trenching and soil dividing device is arranged on the rear side of the vehicle body.

[0006] The cutting and crushing device is arranged at the front end of the frame through the front support frame, and includes a transmission shaft, a crushing assembly, and a cutting blade. The transmission shaft is transversely arranged on the upper part of the front support frame and is connected to an output end of the reversing box through a first transmission belt.

[0007] The cutting blade is located at the front side of the front support frame and is arranged on the cutting blade driving shaft. The cutting blade driving shaft is adjustably connected to the front support frame through a cradle, and the cutting blade driving shaft is connected to the driving shaft through a second transmission belt.

[0008] The crushing assembly includes a sleeve, an impact rod and an eccentric wheel. The impact rod is vertically movably arranged below the transmission shaft through the sleeve, and an impact head is arranged at the lower end. The eccentric wheel is arranged on the transmission shaft to drive the impact rod to move.

[0009] Furthermore, the vehicle frame is a structural frame made of square steel pipes and I-beams, and the power device includes a diesel engine, and the power output end of the diesel engine is connected to the input end of the reversing box.

[0010] A driving seat is arranged at the rear side of the diesel engine, and the bottom of the driving seat is fixedly mounted on the vehicle frame.

[0011] A water storage tank is arranged at the front end of the frame, a spray head is arranged on the front support frame, and the spray head is connected and communicated with the water storage tank through a water pipe.

[0012] Furthermore, the walking mechanism includes a track beam, a track and a track wheel assembly, the track beam is fixedly connected to the corresponding side of the vehicle body, and the track is sleeved on the outside of the track wheel assembly.

[0013] The track wheel group includes a driving track wheel, an upper supporting track wheel and a plurality of lower supporting track wheels. The driving track wheel is arranged at the upper rear of the track beam, the upper supporting track wheel is arranged at the upper front of the track beam, and the plurality of lower supporting track wheels are arranged in sequence and spaced apart at the lower part of the track beam.

[0014] Furthermore, the cradle is located at the front side of the front support frame, and its rear end is hinged to the front support frame.

[0015] A first oil cylinder is arranged below the cradle, one end of the first oil cylinder is hinged to the front support frame, and the other end is connected to the middle part of the cradle, and the hydraulic system supplies oil and returns oil to the first oil cylinder.

[0016] A shaft sleeve is arranged at the front end of the cradle, the cutting blade driving shaft is arranged in the shaft sleeve, and its two ends extend out of the shaft sleeve. There are two groups of cutting blades, and the two groups of cutting blades are symmetrically arranged on the left and right sides of the shaft sleeve.

[0017] Each group of cutting blades includes at least one cutting blade, all the cutting blades are arranged vertically, and the center of the cutting blade is fixedly connected to the cutting blade driving shaft.

[0018] Furthermore, there are multiple crushing assemblies, and each sleeve is fixed on the front support frame in sequence and at intervals in a transverse direction. The interior of the sleeve is a vertical stepped hole, and the impact rod is arranged inside the sleeve.

[0019] The upper end of the impact rod extends to the outside of the sleeve and is fixed with a limiting part. A return spring is provided inside the sleeve. The return spring is sleeved on the outside of the impact rod, one end of which is clamped at the shoulder of the stepped hole, and the other end is clamped at the bottom of the limiting part. The upper surface of the limiting part contacts the bottom of the eccentric wheel.

[0020] Furthermore, the trenching and soil dividing device includes a rear support frame, a soil digging mechanism and a soil dividing mechanism. The front end of the rear support frame is rotatably connected to the rear end of the frame through a shaft sleeve, and two second oil cylinders are symmetrically arranged on both sides of the rear of the frame.

[0021] One end of the second oil cylinder is hinged to the frame, and the other end is hinged to the middle of the rear support frame. The piston rods of the two second oil cylinders are synchronously extended and retracted, and the hydraulic system supplies oil and returns oil to the second oil cylinders.

[0022] The digging mechanism is arranged on the rear supporting frame, and there are two soil dividing mechanisms which are symmetrically arranged on the left and right sides of the front part of the rear supporting frame.

[0023] Furthermore, the digging mechanism includes a chain, a first sprocket, a second sprocket and a third sprocket, the first sprocket and the second sprocket are respectively arranged at the front and rear ends of the rear support frame, the third sprocket is arranged at the rear and lower part of the first sprocket, and the chain sleeve is arranged on the outside of the first sprocket, the second sprocket and the third sprocket.

[0024] The sprocket shaft of the first sprocket is located in the shaft sleeve, one end of the first sprocket is connected to the other output end of the reversing box through the third transmission belt, the first sprocket is a driving sprocket, and the first sprocket drives the second sprocket and the third sprocket to rotate through the chain.

[0025] Furthermore, the chain is a closed ring structure formed by a plurality of chain plates connected end to end in rotation, and the inner side of each chain plate has a tooth groove that matches the sprocket.

[0026] Multiple groups of alloy special-shaped blades and multiple groups of manganese steel special-shaped blades are arranged on the outer side of the chain. The alloy special-shaped blade groups and the manganese steel special-shaped blade groups are alternately fixed on the chain in sequence along the length direction of the chain.

[0027] Each group of alloy shaped blades includes two alloy shaped blades arranged oppositely, and each group of manganese steel shaped blades includes two manganese steel shaped blades arranged oppositely. The manganese steel shaped blades and the alloy shaped blades are both fixed with a hard alloy block on one side of their moving direction.

[0028] The two alloy special-shaped blades in the same group are open in an eight-shaped shape on one side of their moving direction. The two manganese steel special-shaped blades in the same group are both right-angled trapezoidal structures with a convex middle. The wide side of the right-angled trapezoid is located on one side of their moving direction, and the oblique sides of the manganese steel special-shaped blades are bent inward to form a folded edge.

[0029] Furthermore, two soil-dividing mechanisms are symmetrically installed on the left and right sides of the third sprocket. The soil-dividing mechanism includes a fixed shaft and a spiral piece. One end of the fixed shaft is coaxially fixed to the sprocket shaft of the third sprocket. The spiral piece surrounds half the circumference of the fixed shaft and is welded to the fixed shaft.

[0030] One end of the spiral sheet away from the third sprocket is connected with a plane section, and the plane section is welded with the spiral sheet and the fixed shaft to form an integral structure.

[0031] Furthermore, the cutting blade is a circular thin blade made of cemented carbide, and a plurality of stress grooves are evenly opened at the edge of the cutting blade, and the stress grooves extend along the normal direction of the cutting blade.

[0032] By adopting the above technical scheme, the beneficial technical effects of the present invention are: the present invention has a reasonable structural design, low manufacturing cost, and convenient repair and maintenance. The cutting and crushing device first cuts and crushes the concrete or asphalt ground, and the trenching and soil dividing device cooperates with the cutting and crushing device to achieve rapid excavation, which can replace manual trenching, save time and labor, and has a fast excavation speed. The trenching depth can be adjusted to achieve deep excavation and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The present invention is a schematic diagram of the structural principle of a concrete asphalt ground trenching machine.

[0034] Figure 2 yes Figure 1 A schematic diagram of a portion of the structure shows the front support frame and crushing assembly.

[0035] Figure 3 yes Figure 2 A cross-sectional view of a crushing assembly is shown in FIG.

[0036] Figure 4 yes Figure 1 The structural schematic diagram of another part shows the cutting and crushing device.

[0037] Figure 5 It is a structural schematic diagram of the manganese steel special-shaped blade of the present invention.

[0038] Figure 6 It is a structural schematic diagram of the alloy special-shaped blade of the present invention. DETAILED DESCRIPTION

[0039] The present invention is described in detail below in conjunction with the accompanying drawings:

[0040] Combination Figures 1 to 6A concrete asphalt ground trencher includes a frame 1, a power unit 2, a traveling mechanism 3, a cutting and crushing device 4, a trenching and soil dividing device and a hydraulic system. The frame 1 is a structural frame made of square steel pipes and I-beams. The power unit 2 is arranged at the front upper part of the frame 1. The power unit 2 includes a diesel engine 21. The diesel engine 21 is fixedly mounted on the top of the frame 1. The power output end of the diesel engine 21 is connected to the input end of the reversing box 22. The reversing box 22 adopts the cross reversing box already available in the prior art. A cab is arranged at the rear side of the diesel engine 21. A driving seat 11 is arranged inside the cab. The bottom of the driving seat 11 is fixedly mounted on the frame 1. A water tank is arranged at the front end of the frame 1. A nozzle is arranged on the front support frame. The nozzle is connected to the water tank through a water pipe.

[0041] There are two traveling mechanisms 3, which are symmetrically arranged on the left and right sides of the vehicle frame 1. The power unit 2 is connected to the two traveling mechanisms 3 through the reversing box 22 and the transmission structure. The traveling mechanism 3 includes a track beam 31, a track 32 and a track wheel group. The track beam 31 is fixedly connected to the corresponding side of the vehicle body, and the track 32 is sleeved on the outside of the track wheel group. The track wheel group includes a driving track wheel 33, an upper supporting track wheel 34 and a plurality of lower supporting track wheels 35. The driving track wheel 33 is arranged at the upper rear of the track beam 31. The driving track wheel 33 is connected to the power unit 2 through the transmission mechanism and the reversing box 22 of the prior art. The upper supporting track wheel 34 is arranged at the upper front of the track beam 31. The plurality of lower supporting track wheels 35 are arranged at intervals in sequence at the lower part of the track beam 31. The plurality of lower supporting track wheels 35 play a role in supporting the trencher to walk. In the working state, the driving track wheel 33 drives the trencher forward or backward through the track 32.

[0042] The cutting and crushing device 4 is arranged at the front end of the frame 1 through the front support frame 40, and includes a transmission shaft 41, a crushing assembly 42, and a cutting blade 43. The transmission shaft 41 is transversely arranged at the upper part of the front support frame 40 through a bearing. One end of the transmission shaft 41 is provided with a first pulley 411 and a second pulley. The first pulley 411 is connected to an output end of the reversing box 22 through a first transmission belt 47. The reversing box 22 drives the transmission shaft 41 to rotate through the first transmission belt 47. The cutting blade 43 is a circular thin sheet made of hard alloy, and a plurality of stress grooves are evenly opened at its edge, and the stress grooves extend along the normal direction of the cutting blade. The cutting blade 43 is located at the front side of the front support frame 40 and is arranged on the cutting blade drive shaft 44. The cutting blade drive shaft 44 is adjustably connected to the front support frame 40 through a cradle 49. One end of the cutting blade drive shaft 44 is provided with a third pulley 441. The third pulley 441 is connected to the second pulley on the transmission shaft 41 through a second transmission belt 48. The transmission shaft 41 drives the cutting blade drive shaft 44 to rotate through the second transmission belt 48. The cutting blade drive shaft 44 drives the cutting blade 43 to rotate at a high speed to cut the concrete or asphalt ground. The nozzle sprays water to cool the cutting blade 43 to prevent its temperature from being too high, and it can also play a role of lubrication.

[0043] The cradle 49 is located at the front side of the front support frame 40, and the rear end of the cradle 49 is connected to the front support frame 40 for rotation. A first oil cylinder 8 is provided below the cradle 49, one end of the first oil cylinder 8 is hinged to the front support frame 40, and the other end of the first oil cylinder 8 is connected to the middle part of the cradle 49. The hydraulic system supplies oil and returns oil to the first oil cylinder 8, and the first oil cylinder 8 drives the cradle 49 to rotate around the connection between its rear end and the front support frame 40. A sleeve 491 is provided at the front end of the cradle 49, and the cutting blade drive shaft 44 is arranged in the sleeve 491 through a bearing. The cutting blade drive shaft 44 can rotate relative to the sleeve 491, and both ends of the cutting blade drive shaft 44 extend out of the sleeve 491. There are two groups of cutting blades 43, and the two groups of cutting blades 43 are symmetrically arranged on the left and right sides of the sleeve. Each group of cutting blades 43 includes one cutting blade 43, and all cutting blades 43 are arranged vertically, and the center of the cutting blade 43 is fixedly connected to the cutting blade drive shaft 44. According to the actual situation of the concrete or asphalt floor, by reasonably arranging the number and width of the cutting blades 43, the cutting depth of the concrete or asphalt floor by the cutting blades 43 can be adjusted by the first cylinder 8. The cutting blades 43 can cut through the concrete or asphalt floor and cut the concrete or asphalt floor into several independent long strips.

[0044] There are multiple crushing assemblies 42, and the multiple crushing assemblies 42 are arranged in sequence on the front support frame 40 at equal intervals in the horizontal direction. The crushing assembly 42 includes a sleeve 421, an impact rod 422 and an eccentric wheel 423. The impact rod 422 is vertically movable through the sleeve 421 and is arranged below the transmission shaft 41. An impact head 424 is arranged at the lower end. The eccentric wheel 423 is arranged on the transmission shaft 41 to drive the impact rod 422 to move.

[0045] Specifically, each sleeve 421 is fixedly welded on the front support frame 40, the interior of the sleeve 421 is a vertical stepped hole, the impact rod 422 is arranged inside the sleeve 421, and the impact rod 422 is vertically slidably matched with the inner wall of the sleeve 421. The upper end of the impact rod 422 extends to the outside of the sleeve 421 and is fixed with a limiting portion 425. A return spring 426 is arranged inside the sleeve 421, and the return spring 426 is sleeved on the outside of the impact rod 422, one end of which is clamped at the shoulder of the stepped hole, and the other end is clamped at the bottom of the limiting portion 425, and the upper surface of the limiting portion 425 is in contact with the bottom of the eccentric wheel 423. Each eccentric wheel 423 is installed on the transmission shaft 41 through a spline. The transmission shaft 41 drives each eccentric wheel 423 to rotate. The eccentric wheel 423 contacts the limiting part 425 and drives the impact rod 422 to move downward. When the eccentric wheel 423 rotates, the return spring 426 drives the impact rod 422 to move upward. This process is repeated. The impact rod 422 drives the impact head 424 to impact and crush the cut concrete or asphalt floor. During the forward movement, the impact head 424 breaks the long strips of concrete or asphalt floor into smaller pieces, providing conditions for the subsequent excavation of soil layers.

[0046] The trenching and soil-dividing device is installed on the rear side of the vehicle body, and includes a rear support frame 51, a soil-digging mechanism 6 and a soil-dividing mechanism 7. The front end of the rear support frame 51 is rotatably connected to the bearing seat at the rear end of the frame 1 through a shaft sleeve, and two second oil cylinders 52 are symmetrically arranged on both sides of the rear of the frame 1. One end of the second oil cylinder 52 is hinged to the frame 1, and the other end is hinged to the middle part of the rear support frame 51. The piston rods of the two second oil cylinders 52 are synchronously extended and retracted, and the hydraulic system supplies oil and returns oil to the second oil cylinders 52. The two second oil cylinders 52 synchronously extend and retract to drive the rear support frame 51 to rotate around the connection between the rear end bearing seat and the frame 1, so as to achieve the height adjustment of the rear support frame 51. The second oil cylinder 52 controls the depth of trenching by adjusting the height of the rear end of the support frame 51, so as to achieve deep digging in the trenching process.

[0047] The digging mechanism 6 is arranged on the rear support frame 51, and the digging mechanism 6 includes a chain 61, a first sprocket 62, a second sprocket 63 and a third sprocket 64. The first sprocket 62 and the second sprocket 63 are arranged at the front and rear ends of the rear support frame 51 respectively, and the third sprocket 64 is arranged at the rear and lower part of the first sprocket 62. The chain 61 is sleeved on the outside of the first sprocket 62, the second sprocket 63 and the third sprocket 64. A guard plate 9 is arranged just above the chain, and the front end of the guard plate 9 is connected to the rear support frame 51, and the rear end of the guard plate 9 extends to the top of the second sprocket 63, and a fender 91 is installed. The sprocket shaft of the first sprocket 62 is located in the shaft sleeve, and one end of the first sprocket 62 is connected to the other output end of the reversing box 22 through the third transmission belt. The first sprocket 62 is a driving sprocket, and the first sprocket 62 drives the second sprocket 63 and the third sprocket 64 to rotate through the chain 61.

[0048] The chain 61 is a closed ring structure formed by a plurality of chain plates connected in rotation from end to end, and the inner side of each chain plate has a tooth groove matched with the sprocket. The outer side of the chain 61 is provided with a plurality of sets of alloy shaped blades and a plurality of sets of manganese steel shaped blades, and the alloy shaped blade group and the manganese steel shaped blade group are fixed on the chain 61 alternately along the length direction of the chain 61. Each set of alloy shaped blades includes two alloy shaped blades arranged oppositely, and each set of manganese steel shaped blades includes two manganese steel shaped blades arranged oppositely. The manganese steel shaped blades and the alloy shaped blades are fixed with a hard alloy block on one side of the moving direction, and the hard alloy block has a high ability to break soil and crush rocks. The blades on the trencher chain adopt an arrangement of alloy shaped blades and manganese steel shaped blades arranged alternately, so that the excavation is smooth, the side wall of the excavated hook is flatter, and the power consumption is small, which has an energy-saving effect and effectively reduces costs. The carbide block improves the rigid cutting ability of the blade. The edge of the manganese steel special-shaped blade is welded with carbide to give full play to the elasticity of the manganese steel matrix of the blade, increase the rigidity of the edge, and enhance the digging ability and wear resistance.

[0049] The two alloy special-shaped blades in the same group are open in an eight-shaped shape on one side of the moving direction, holding the excavated soil and gravel forward and transporting them to the ground. The two manganese steel special-shaped blades in the same group are both right-angled trapezoidal structures with a convex middle. The wide side of the right-angled trapezoid is located on one side of the moving direction, and the bevel of the manganese steel special-shaped blade is bent inward to form a folded edge. The trenching width is determined by the bending angle of the alloy blade and the width of the chain. The thickness of the manganese steel special-shaped blade is thin, and the sand blocks will not get stuck. At the same time, the angle of the bevel is increased, which will not get stuck on the blade, and the front end will be sharper when digging, and the effect will be better. The two alloy special-shaped blades have a good ability to break the soil on the side wall of the trench, and also have a good ability to transport the soil and gravel forward. The two manganese steel special-shaped blades have a good ability to break the soil at the bottom of the trench, and also have a good ability to transport the soil and gravel forward.

[0050] There are two soil-dividing mechanisms 7, which are symmetrically installed on the left and right sides of the front of the rear support frame 51. Specifically, the two soil-dividing mechanisms 7 are symmetrically installed on the left and right sides of the third sprocket 64, and the soil-dividing mechanism 7 includes a fixed shaft 71 and a spiral piece 72. One end of the fixed shaft 71 is coaxially fixed to the sprocket shaft of the third sprocket 64 as a whole, and the spiral piece 72 surrounds the fixed shaft 71 half a circle and is welded to the fixed shaft 71 as a whole. A plane section 73 is connected to the end of the spiral piece 72 away from the third sprocket 64, and the plane section 73 is welded to the spiral piece 72 and the fixed shaft 71 as an integral structure. According to the characteristics of large sand blocks, a large pitch spiral is used, and the sand blocks rotate with the spiral for no more than half a circle, and are pushed out laterally along the plane section, so as to better transport the sand blocks.

[0051] In the working state, the chain 61 drives the alloy special-shaped blade and the manganese steel special-shaped blade to dig the soil and transport the soil and gravel forward and upward. After being sent to the position of the soil dividing mechanism 7, the spiral blade 72 transports the soil and gravel to both sides above the ground to prevent the soil and gravel from accumulating under the chain 61.

[0052] Parts not described in the present invention can be implemented by adopting or drawing on existing technologies.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0055] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A concrete asphalt ground trencher, comprising a frame, a power unit, a traveling mechanism, a cutting and crushing device, a trenching and soil dividing device and a hydraulic system, characterized in that: The power device is arranged at the front upper part of the frame, and there are two traveling mechanisms, which are symmetrically arranged on the left and right sides of the frame. The power device is connected to the traveling mechanism through a reversing box, and the trenching and soil dividing device is arranged at the rear side of the vehicle body; The cutting and crushing device is arranged at the front end of the frame through the front support frame, and includes a transmission shaft, a crushing assembly, and a cutting blade. The transmission shaft is transversely arranged at the upper part of the front support frame and is connected to an output end of the reversing box through a first transmission belt; The cutting blade is located at the front side of the front support frame and is arranged on the cutting blade drive shaft. The cutting blade drive shaft is adjustably connected to the front support frame through a cradle, and the cutting blade drive shaft is connected to the drive shaft through a second transmission belt; The crushing assembly includes a sleeve, an impact rod and an eccentric wheel. The impact rod is vertically movable through the sleeve and is arranged below the transmission shaft. An impact head is arranged at the lower end. The eccentric wheel is arranged on the transmission shaft to drive the impact rod to move. The cutting blade is a circular thin piece made of cemented carbide, and a plurality of stress grooves are evenly opened on the edge of the cutting blade, and the stress grooves extend along the normal direction of the cutting blade.

2. A concrete asphalt floor trencher according to claim 1, characterized in that: The frame is a structural frame made of square steel tubes and I-beams, and the power device includes a diesel engine, and the power output end of the diesel engine is connected to the input end of the reversing box; A driving seat is provided at the rear side of the diesel engine, and the bottom of the driving seat is fixedly mounted on the vehicle frame; A water storage tank is arranged at the front end of the vehicle frame, a spray head is arranged on the front support frame, and the spray head is connected and communicated with the water storage tank through a water pipe.

3. A concrete asphalt ground trencher according to claim 1, characterized in that: The walking mechanism includes a crawler beam, crawler tracks and crawler wheel sets, wherein the crawler beam is fixedly connected to the corresponding side of the vehicle body, and the crawler tracks are sleeved on the outside of the crawler wheel sets; The track wheel group includes a driving track wheel, an upper supporting track wheel and a plurality of lower supporting track wheels. The driving track wheel is arranged at the upper rear of the track beam, the upper supporting track wheel is arranged at the upper front of the track beam, and the plurality of lower supporting track wheels are arranged in sequence and spaced apart at the lower part of the track beam.

4. A concrete asphalt floor trencher according to claim 1, characterized in that: The cradle is located at the front side of the front support frame, and its rear end is hinged to the front support frame; A first oil cylinder is provided below the cradle, one end of the first oil cylinder is hinged to the front support frame, and the other end is connected to the middle of the cradle, and the hydraulic system supplies oil and returns oil to the first oil cylinder; A shaft sleeve is arranged at the front end of the cradle, and the driving shaft of the cutting blade is arranged in the shaft sleeve, and its two ends extend out of the shaft sleeve. There are two groups of cutting blades, and the two groups of cutting blades are symmetrically arranged on the left and right sides of the shaft sleeve; Each group of cutting blades includes at least one cutting blade, all the cutting blades are arranged vertically, and the center of the cutting blade is fixedly connected to the cutting blade driving shaft.

5. The concrete asphalt floor trencher according to claim 1, characterized in that: There are multiple crushing assemblies, each sleeve is fixed on the front support frame in a horizontal manner and spaced apart from each other, the interior of the sleeve is a vertical stepped hole, and the impact rod is arranged inside the sleeve; The upper end of the impact rod extends to the outside of the sleeve and is fixed with a limiting part. A return spring is provided inside the sleeve. The return spring is sleeved on the outside of the impact rod, one end of which is clamped at the shoulder of the stepped hole, and the other end is clamped at the bottom of the limiting part. The upper surface of the limiting part contacts the bottom of the eccentric wheel.

6. A concrete asphalt ground trencher according to claim 1, characterized in that: The trenching and soil-dividing device comprises a rear support frame, a soil-digging mechanism and a soil-dividing mechanism. The front end of the rear support frame is rotatably connected to the rear end of the frame through a shaft sleeve. Two second oil cylinders are symmetrically arranged on both sides of the rear of the frame. One end of the second oil cylinder is hinged to the frame, and the other end is hinged to the middle of the rear support frame. The piston rods of the two second oil cylinders are synchronously extended and retracted, and the hydraulic system supplies oil and returns oil to the second oil cylinders. The digging mechanism is arranged on the rear supporting frame, and there are two soil dividing mechanisms which are symmetrically arranged on the left and right sides of the front part of the rear supporting frame.

7. A concrete asphalt floor trencher according to claim 6, characterized in that: The digging mechanism includes a chain, a first sprocket, a second sprocket and a third sprocket, wherein the first sprocket and the second sprocket are respectively arranged at the front and rear ends of the rear support frame, the third sprocket is arranged at the rear and lower part of the first sprocket, and the chain sleeve is arranged outside the first sprocket, the second sprocket and the third sprocket; The sprocket shaft of the first sprocket is located in the shaft sleeve, one end of the first sprocket is connected to the other output end of the reversing box through the third transmission belt, the first sprocket is a driving sprocket, and the first sprocket drives the second sprocket and the third sprocket to rotate through the chain.

8. A concrete asphalt floor trencher according to claim 7, characterized in that: The chain is a closed ring structure formed by a plurality of chain plates connected end to end in a rotational manner, and the inner side of each chain plate has a tooth groove that matches the sprocket; Multiple groups of alloy shaped blades and multiple groups of manganese steel shaped blades are arranged on the outer side of the chain, and the alloy shaped blade groups and the manganese steel shaped blade groups are alternately fixed on the chain in sequence along the length direction of the chain; Each group of alloy shaped blades includes two alloy shaped blades arranged opposite to each other, and each group of manganese steel shaped blades includes two manganese steel shaped blades arranged opposite to each other, and a hard alloy block is fixed on one side of the manganese steel shaped blades and the alloy shaped blades located in the moving direction thereof; The two alloy special-shaped blades in the same group are open in an eight-shaped shape on one side of their moving direction. The two manganese steel special-shaped blades in the same group are both right-angled trapezoidal structures with a convex middle. The wide side of the right-angled trapezoid is located on one side of their moving direction, and the oblique sides of the manganese steel special-shaped blades are bent inward to form a folded edge.

9. The concrete asphalt floor trencher according to claim 7, characterized in that: Two soil-dividing mechanisms are symmetrically installed on the left and right sides of the third sprocket, and the soil-dividing mechanism includes a fixed shaft and a spiral piece, one end of the fixed shaft is coaxially fixed to the sprocket shaft of the third sprocket as a whole, and the spiral piece surrounds half of the fixed shaft and is welded to the fixed shaft as a whole; One end of the spiral sheet away from the third sprocket is connected with a plane section, and the plane section is welded with the spiral sheet and the fixed shaft to form an integral structure.

Images