Composite driving shaft of ditcher

Abstract

The utility model relates to a compound driving shaft of a ditcher. The left end of the driving shaft extends out of the left side of the moving trolley and is coaxially and fixedly connected with a horizontal auger; the right end extends out of the right side of the moving trolley and is in driving connection with an engine on the moving trolley; the driving shaft is rotationally connected with the moving trolley; the cutting chain row system comprises a chain row left frame and a chain row right frame; the moving trolley is provided with a telescopic cylinder; the left end of the driving shaft is rotationally connected with the chain row left frame, and the right end is rotationally connected with a hook-shaped swing plate. One end of the swing plate is hinged to the telescopic end of the telescopic cylinder. The fixed end of the telescopic cylinder is hinged to the moving trolley; the other end of the swing plate is fixedly connected with the chain row right frame; the middle of the driving shaft is coaxially and fixedly connected with a driving chain wheel of the cutting chain row system. The device simultaneously acts on a horizontal auger and a cutting chain row system, so that the operation difficulty is reduced; according to the utility model, a swing center is provided for the swing of the swing plate, and the inclination angle of the cutting chain row system is adjusted, so that the ditcher can dig ditches with different depths.

Description

Technical Field

[0001] The utility model relates to the technical field of trenching machine accessories, in particular to a trenching machine composite drive shaft. Background Art

[0002] Trenchers are widely used mechanical equipment for trenching and grooving, including wheeled and chain trenchers. Wheeled trenchers dig using a rotating wheel disc, but their complex structure leads to high manufacturing and maintenance costs, resulting in low trenching efficiency. Chain trenchers, on the other hand, have a simpler structure, produce trenches of consistent depth and width, and offer high excavation speeds and low maintenance costs, making them widely used. A conventional chain trencher consists of a cutting chain system, a horizontal auger, and a trolley. The cutting chain system is connected to the trolley at one end and faces outward at the other end. The cutting chain cuts the ground and transfers the cut soil to the trolley. The horizontal auger, located to the side of the connection between the cutting chain system and the trolley, transfers the cut soil to the side to prevent it from backfilling the excavated trench. The cutting chain system is connected to the trolley via a drive shaft, which also provides torque to the cutting chain system, enabling its operation. The horizontal auger, on the other hand, has a separate power source. Therefore, the existing trenching machine needs to start the cutting chain system and the horizontal auger in sequence, which is very troublesome to operate. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a composite drive shaft for a trencher.

[0004] The technical solution of the utility model is: a trenching machine compound drive shaft, the left end of the shaft extends out of the left side of the mobile trolley, and is coaxially fixed with a horizontal auger; the right end extends out of the right side of the mobile trolley; the trenching machine compound drive shaft rotates to output torque to the horizontal auger, so that the horizontal auger works normally; the trenching machine compound drive shaft is rotatably connected to the mobile trolley; the cutting chain system includes a chain left frame and a chain right frame fixed to each other; the chain left frame and the chain right frame form the cutting chain system as a whole; the deflection of the chain left frame and the chain right frame also forms the deflection of the cutting chain system; the mobile trolley is provided with a telescopic cylinder; the left end of the trenching machine compound drive shaft is rotatably connected to the chain left frame, and the right end is connected to the chain left frame. The end is rotatably connected with a swing plate; the swing plate is hook-shaped as a whole; one end of the swing plate is hinged to the telescopic end of the telescopic cylinder; the fixed end of the telescopic cylinder is hinged to the mobile trolley; the other end of the swing plate is fixed to the right frame of the chain; the telescopic action of the telescopic cylinder acts on the right frame of the chain through the swing plate, so that the cutting chain system tilts; the tilted cutting chain system can penetrate deep into the ground to cut soil blocks; the trenching depth of the cutting chain system is different for different tilt angles; the active sprocket of the cutting chain system is coaxially fixed to the middle part of the trencher composite drive shaft; the rotating trencher composite drive shaft also acts on the cutting chain system through the active sprocket, so that the cutting chain system cuts soil blocks.

[0005] Preferably, the right end of the trencher composite drive shaft is coaxially fixed with a drive wheel to obtain external torque.

[0006] Furthermore, the driving wheel is a sprocket, which is connected to an external driving device through a chain; the cooperation between the sprocket and the chain can ensure the effective transmission of external torque.

[0007] Preferably, the horizontal auger includes a connecting pipe and a spiral sheet arranged around the connecting pipe; the right end of the connecting pipe is connected to the left end of the trencher composite drive shaft through a pin shaft and a pin hole; an open pin hole is provided at the end of the pin shaft; an open pin is installed in the open pin hole; the horizontal auger and the trencher composite drive shaft form a simple detachable structure.

[0008] Preferably, there are at least two driving sprockets; the trencher composite drive shaft is connected to the driving sprocket through a key bar; the driving sprocket and the trencher composite drive shaft have a detachable structure with a simple stroke; a long keyway is provided in the middle of the trencher composite drive shaft; the driving sprocket is provided with a short keyway; the key bar is inserted into the long keyway and the short keyway to ensure that the driving sprocket transmits torque stably; a spacer sleeve is also provided in the middle of the trencher composite drive shaft; the end of the spacer sleeve is connected to the end face of the driving sprocket to keep the driving sprocket in a suitable axial position.

[0009] Preferably, a left-side ring body is provided on the left side of the mobile trolley; bearing A is nested and installed in the left-side ring body; the left end of the trencher compound drive shaft is connected to the inner ring of bearing A; a right-side ring body is provided on the right side of the mobile trolley; bearing B is nested and installed in the right-side ring body; the right end of the trencher compound drive shaft is connected to the inner ring of bearing B; bearing A and bearing B can reduce the rotational friction of the trencher compound drive shaft.

[0010] Furthermore, a side wall and a frustum shell are provided on the right side of the mobile trolley; the frustum shell is installed on the outside of the side wall; the right ring body passes through the side wall and the frustum shell; the side wall, the frustum shell and the right ring body are welded; the frustum shell provides stable support for the right ring body.

[0011] Preferably, the telescopic cylinder is an electric push rod or an electric oil cylinder, which can stably drive the cutting chain system to deflect; the mobile trolley is also provided with a mobile power supply; the mobile power supply is electrically connected to the electric push rod or the electric oil cylinder to provide power for the electric push rod.

[0012] The beneficial effects of the utility model are as follows: the composite drive shaft of the trencher of the utility model has the following advantages:

[0013] (1) The utility model acts on the horizontal auger and the cutting chain system simultaneously, so that the excavation of soil blocks and the discharge of soil blocks to the side of the trencher are carried out synchronously, which reduces the difficulty of operation. In addition, the utility model provides a swing center for the swing of the swing plate to adjust the inclination angle of the cutting chain system, so that the trencher can open trenches of different depths.

[0014] (2) The long keyway of the utility model can be used to install different numbers of cutting chain systems to meet different trenching needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the composite drive shaft of the utility model trenching machine Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the composite drive shaft of the utility model trenching machine Figure 2 ;

[0017] Figure 3 yes Figure 1 Side view of

[0018] Figure 4 yes Figure 3 AA section view;

[0019] Figure 5 yes Figure 4 I magnified view of;

[0020] Figure 6 yes Figure 5 BB cross-sectional view;

[0021] In the figure: 01. Mobile trolley, 011. Left ring body, 0111. Bearing A, 012. Right ring body, 0121. Bearing B, 013. Side wall, 014. Cone shell, 021. Chain rack left frame, 022. Chain rack right frame, 023. Driving sprocket, 0231. Short keyway, 1. Horizontal auger, 11. Connecting pipe, 12. Spiral plate, 2. Telescopic cylinder, 3. Swing plate, 4. Long keyway, 5. Spacer sleeve, 6. Mobile power supply, 7. Drive wheel, 71. Chain, 8. Pin. DETAILED DESCRIPTION

[0022] Example 1: See Figure 1-6, a trencher compound drive shaft, the left end of the shaft extends out of the left side of the mobile trolley 01, and is coaxially fixed with a horizontal auger 1; the right end extends out of the right side of the mobile trolley 01; the trencher compound drive shaft rotates to output torque to the horizontal auger 1, so that the horizontal auger 1 works normally; the trencher compound drive shaft is rotatably connected to the mobile trolley 01; the cutting chain system includes a chain left frame 021 and a chain right frame 022 fixed to each other; the chain left frame 021 and the chain right frame 022 make the cutting chain system form a whole; the deflection of the chain left frame 021 and the chain right frame 022 is also the deflection of the cutting chain system; the mobile trolley 01 is provided with a telescopic cylinder 2; the left end of the trencher compound drive shaft is rotatably connected to the chain left frame 021, right The end is rotatably connected to a swing plate 3; the swing plate 3 is hook-shaped as a whole; one end of the swing plate 3 is hinged to the telescopic end of the telescopic cylinder 2; the fixed end of the telescopic cylinder 2 is hinged to the mobile trolley 01; the other end of the swing plate 3 is fixed to the right chain frame 022; the telescopic action of the telescopic cylinder 2 acts on the right chain frame 022 through the swing plate 3, causing the cutting chain system to tilt; the tilted cutting chain system can penetrate deep into the ground to cut soil blocks; the trenching depth of the cutting chain system is different for different tilt angles; the active sprocket 023 of the cutting chain system is coaxially fixed to the middle part of the trencher composite drive shaft; the rotating trencher composite drive shaft also acts on the cutting chain system through the active sprocket 023, causing the cutting chain system to cut soil blocks.

[0023] Compared with the prior art, the present invention acts on the horizontal auger 1 and the cutting chain system at the same time, so that the trencher can dig out soil blocks and discharge the soil blocks to the side simultaneously, which reduces the difficulty of operation; in addition, the present invention provides a swing center for the swing of the swing plate 3 to adjust the inclination angle of the cutting chain system, so that the trencher can dig trenches of different depths.

[0024] The right end of the composite drive shaft of the trencher is coaxially fixed with a drive wheel 7 to obtain external torque.

[0025] The driving wheel 7 is a sprocket, which is connected to an external driving device through a chain 71; the cooperation between the sprocket and the chain 71 can ensure the effective transmission of external torque.

[0026] The horizontal auger 1 includes a connecting pipe 11 and a spiral sheet 12 arranged around the connecting pipe 11; the right end of the connecting pipe 11 is connected to the left end of the trencher composite drive shaft through a pin shaft 8 and a pin hole; an open pin hole is provided at the end of the pin shaft 8; an open pin is installed in the open pin hole; the horizontal auger 1 and the trencher composite drive shaft form a simple detachable structure.

[0027] There are at least two driving sprockets 023. The trencher's composite drive shaft is connected to the driving sprockets 023 via a key bar. The driving sprockets 023 and the trencher's composite drive shaft are detachable for a simple travel. A long keyway 4 is provided in the middle of the trencher's composite drive shaft. The driving sprocket 023 has a short keyway 0231. The key bar engages the long keyway 4 and the short keyway 0231 to ensure stable torque transmission from the driving sprocket 023. A spacer sleeve 5 is also mounted in the middle of the trencher's composite drive shaft. The end of the spacer sleeve 5 connects to the end face of the driving sprocket 023 to maintain the proper axial position of the driving sprocket 023. The present utility model has two driving sprockets 023.

[0028] The long keyway 4 can be adapted to the installation of different numbers of cutting chain systems to meet different trenching needs.

[0029] A left ring body 011 is provided on the left side of the mobile trolley 01; a bearing A 0111 is nested and installed in the left ring body 011; the left end of the trencher compound drive shaft is connected to the inner ring of the bearing A 0111; a right ring body 012 is provided on the right side of the mobile trolley 01; a bearing B 0121 is nested and installed in the right ring body 012; the right end of the trencher compound drive shaft is connected to the inner ring of the bearing B 0121; the bearing A 0111 and the bearing B 0121 can reduce the rotational friction of the trencher compound drive shaft.

[0030] A side wall 013 and a frustum shell 014 are provided on the right side of the mobile trolley 01; the frustum shell 014 is installed on the outside of the side wall 013; the right ring body 012 passes through the side wall 013 and the frustum shell 014; the side wall 013, the frustum shell 014 and the right ring body 012 are welded; the frustum shell 014 provides stable support for the right ring body 012.

[0031] The working principle of the utility model is as follows: torque is output to the horizontal auger 1 through the trencher compound drive shaft, so that the horizontal auger 1 works normally; the telescopic action of the telescopic cylinder 2 acts on the chain right frame 022 through the swing plate 3, so that the cutting chain system is tilted relative to the trencher compound drive shaft; the tilted cutting chain system can penetrate deep into the ground to cut soil blocks; the trenching depth of the cutting chain system is different for different tilt angles; the rotating trencher compound drive shaft also acts on the cutting chain system through the active sprocket 023, so that the cutting chain system can cut soil blocks.

[0032] Example 2: Example 2 is basically the same as Example 1, and the similarities are not repeated here. The differences are: the telescopic cylinder 2 is an electric push rod or an electric oil cylinder, which can stably drive the cutting chain system to deflect; the mobile trolley 01 is also provided with a mobile power supply 6; the mobile power supply 6 is electrically connected to the electric push rod or the electric oil cylinder to provide power for the electric push rod.

Claims

1. A composite drive shaft for a trencher, characterized in that: The left end of the shaft extends out from the left side of the moving trolley and is coaxially fixed with a horizontal auger; the right end extends out from the right side of the moving trolley; the trencher compound drive shaft is rotatably connected to the moving trolley; the cutting chain system includes a left chain frame and a right chain frame fixed to each other; the moving trolley is provided with a telescopic cylinder; the left end of the trencher compound drive shaft is rotatably connected to the left chain frame, and the right end is rotatably connected to a swing plate; the swing plate is hook-shaped as a whole; one end of the swing plate is hinged to the telescopic end of the telescopic cylinder; the fixed end of the telescopic cylinder is hinged to the moving trolley; the other end of the swing plate is fixed to the right chain frame; the middle part of the trencher compound drive shaft is coaxially fixed with the active sprocket of the cutting chain system.

2. The trencher composite drive shaft according to claim 1, characterized in that: The right end of the shaft is coaxially fixed with a driving wheel.

3. The trencher composite drive shaft according to claim 2, characterized in that: The driving wheel is a sprocket and is connected to an external driving device through a chain.

4. The trencher composite drive shaft according to claim 1, characterized in that: The horizontal auger includes a connecting pipe and a spiral sheet arranged around the connecting pipe; the right end of the connecting pipe is connected to the left end of the trencher composite drive shaft through a pin shaft and a pin hole; the end of the pin shaft is provided with a cotter pin hole; and a cotter pin is installed in the cotter pin hole.

5. The trencher composite drive shaft according to claim 1, characterized in that: There are at least two driving sprockets; the trencher composite drive shaft is connected to the driving sprocket through a key bar; a long key groove is provided in the middle of the trencher composite drive shaft; the driving sprocket is provided with a short key groove; the key bar is inserted into the long key groove and the short key groove; a spacer sleeve is also provided in the middle of the trencher composite drive shaft; the end of the spacer sleeve is connected to the end face of the driving sprocket.

6. The trencher composite drive shaft according to claim 1, characterized in that: A left ring body is provided on the left side of the mobile trolley; bearing A is nested in the left ring body; the left end of the trencher compound drive shaft is connected to the inner ring of bearing A; a right ring body is provided on the right side of the mobile trolley; bearing B is nested in the right ring body; the right end of the trencher compound drive shaft is connected to the inner ring of bearing B.

7. The trencher composite drive shaft according to claim 6, characterized in that: A side wall and a frustum shell are provided on the right side of the mobile trolley; the frustum shell is installed on the outer side of the side wall; the right ring body passes through the side wall and the frustum shell; the side wall, the frustum shell and the right ring body are welded.

8. The trencher composite drive shaft according to claim 1, characterized in that: The telescopic cylinder is an electric push rod or an electric oil cylinder; the mobile trolley is also provided with a mobile power supply; the mobile power supply is electrically connected to the electric push rod or the electric oil cylinder.

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