Drainage ditch digging equipment for highway construction

Abstract

The present invention discloses drainage ditch excavation equipment for highway construction, which relates to the technical field of highway construction, and includes an intermediate shell, and also includes: two side baffles, one end of the two side baffles is respectively fixed on both sides of the intermediate shell, the ends of the two side baffles that are far away from each other are both in an arc shape, and the arc-shaped end of the side baffle is slidably sleeved with a sleeve plate; a centering mechanism, the centering mechanism enables the two sleeve plates to move synchronously and in opposite directions along the side baffles; two first fixed plates, the tops of the two first fixed plates are respectively fixed to the bottom of the sleeve plate; two side excavation wheels, the outer side of the fixed plate is provided with a second rotating hole, the inner side of the second rotating hole is rotatably installed with a second rotating shaft, and the second rotating shaft is coaxially fixed with the side excavation wheel; two intermediate excavation wheels. The present invention excavates trapezoidal drainage ditches of different inclinations by adjusting the relative angle between the side excavation wheel and the ground, thereby improving its scope of application.

Description

Technical Field

[0001] The invention relates to the technical field of highway construction, in particular to drainage ditch digging equipment for highway construction. Background Art

[0002] Drainage ditches refer to ditches that lead water collected in low-lying areas near buildings to drainage systems. Traditional building drainage ditches are made by digging trenches first and then pouring concrete on the surface of the trenches. As buildings have higher and higher requirements for drainage performance, more and more building drainage ditches are using finished drainage ditches made of resin or stainless steel materials, that is, trenches that match the shape of the finished drainage ditches are first dug, and then the finished drainage ditches are installed in the trenches.

[0003] After searching, the Chinese patent with the announcement number CN113605475B discloses a construction device for opening a building drainage ditch, which belongs to the technical field of drainage ditch opening, including a connecting bottom plate, a moving component is arranged above the connecting bottom plate, a support frame plate is arranged above the moving component, a height adjustment component is arranged above the support frame plate, a slotting and alignment component is arranged inside the support frame plate, and a loosening component is arranged inside the slotting and alignment component. The patent discloses a construction device for opening a building drainage ditch, which can be effectively adjusted according to needs, and can rise and shrink to avoid affecting movement, improve the use efficiency, increase the accuracy of drainage ditch slotting, improve the flatness of the side wall of the trench, facilitate better and clearer determination of the drainage ditch boundary line, effectively separate the soil on the side wall of the trench, improve the slotting efficiency, improve the loosening efficiency, facilitate the later shoveling, improve the drainage ditch construction efficiency, improve the automatic performance of the entire facility, ensure the drainage ditch construction speed, and greatly save time and manpower.

[0004] However, the above invention has the following disadvantages: the drainage ditch of the highway may be designed to be trapezoidal due to the need to better collect water flow. However, the above equipment digs the ground through a shovel blade, which is only suitable for rectangular drainage ditches, not trapezoidal drainage ditches. Summary of the invention

[0005] The object of the present invention is to provide drainage ditch digging equipment for highway construction to solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the present invention is: a drainage ditch excavation device for highway construction, comprising an intermediate shell, and further comprising:

[0007] Two side baffles, one end of each of the two side baffles is fixed to two sides of the middle shell respectively, the ends of the two side baffles that are far away from each other are both in an arc shape, and a sleeve plate is slidably sleeved on the arc-shaped end of the side baffle;

[0008] A centering mechanism, which enables the two sleeve plates to move synchronously and in opposite directions along the side baffles;

[0009] Two first fixing plates, the tops of the two first fixing plates are respectively fixed to the bottom of the sleeve plate;

[0010] Two side excavating wheels, the outer side of the fixing plate is provided with a second rotating hole, the inner side of the second rotating hole is rotatably mounted with a second rotating shaft, and the second rotating shaft is coaxially fixed with the side excavating wheel;

[0011] Two intermediate excavating wheels, both sides of the intermediate shell are provided with fourth rotating holes, a fourth rotating shaft is installed in the two fourth rotating holes for common rotation, and both ends of the fourth rotating shaft are respectively coaxially fixed with the two intermediate excavating wheels;

[0012] A driving assembly is provided, wherein the driving assembly causes the fourth rotating shaft to rotate synchronously with the two second rotating shafts.

[0013] Preferably, the side excavating wheel and the middle excavating wheel have the same structure, and both the side excavating wheel and the middle excavating wheel include a circular wheel and a plurality of excavating knives fixed at the edge of the circular wheel.

[0014] Preferably, the centering mechanism includes a double-threaded rod, two concave plates and two second fixed plates, the bottoms of the two second fixed plates are respectively fixed to the tops of the two side baffles, a sixth rotating hole is opened on the outer side of the second fixed plate, the middle position of the double-threaded rod is rotatably installed in the sixth rotating hole, both ends of the double-threaded rod are threadedly installed with internal threaded sleeves, one end of the internal threaded sleeve is fixed with a sliding rod, the bottoms of the two concave plates are respectively fixed to the sleeve plates, straight grooves are opened at both ends of the concave plates, and the two sliding rods are respectively slidably set in the straight grooves of the two concave plates.

[0015] Preferably, the driving assembly includes a reference shell, a guide assembly is arranged between the bottom of the reference shell and the top of the side baffle, the guide assembly includes a plurality of double-section telescopic cylinders, both ends of the double-section telescopic cylinders are respectively fixed to the bottom of the reference shell and the top of the side baffle.

[0016] Preferably, the drive assembly also includes a drive motor, a third rotating shaft, a first transmission pair, two fifth rotating shafts and two universal transmission shafts. The housing of the drive motor is fixed on the reference shell. A third rotating hole is provided at the top and the middle of the bottom of the reference shell. Both ends of the third rotating shaft are rotatably mounted in the third rotating hole, and the output shaft of the drive motor is coaxially fixed with the third rotating shaft. Two fifth rotating holes are provided at the bottom of the reference shell, which are respectively located on both sides of the third rotating hole. One end of the fifth rotating shaft is rotatably mounted in the fifth rotating hole. Both ends of the universal transmission shaft are respectively fixed on the second rotating shaft and the fifth rotating shaft. The third rotating shaft and the fifth rotating shaft rotate synchronously through the first transmission pair.

[0017] Preferably, the first transmission pair comprises a transmission gear and two driven gears meshing with the transmission gear, the transmission gear is coaxially fixed to the third rotating shaft, and the two driven gears are coaxially fixed to the fifth rotating shaft respectively.

[0018] Preferably, the drive assembly also includes a second transmission pair, a first rotating shaft, a first bevel gear and a second bevel gear. A first rotating hole is opened on the top of the intermediate shell, one end of the first rotating shaft is rotatably installed in the first rotating hole, the first bevel gear is coaxially fixed with the first rotating shaft, the second bevel gear is coaxially fixed with the fourth rotating shaft, the first bevel gear is meshed with the second bevel gear, and the third rotating shaft rotates synchronously with the first rotating shaft through the second transmission pair.

[0019] Preferably, the second transmission pair comprises a spline shaft and a spline sleeve sleeved on the spline shaft, the spline shaft is coaxially fixed to the first rotating shaft, and the spline sleeve is coaxially fixed to the third rotating shaft.

[0020] Preferably, a towing hook is fixed to the same side of the two side baffles.

[0021] Preferably, a plow blade is fixed to the bottom of the intermediate shell.

[0022] The present invention provides a drainage ditch digging device for highway construction by improvement, which has the following improvements and advantages compared with the prior art:

[0023] First, the present invention uses a centering mechanism to make the two sleeves slide along the side baffles, and at this time the first fixed plate on the sleeve moves accordingly, and the side excavating wheel moves with the first fixed plate, thereby changing the relative angle between the side excavating wheel and the ground, and the driving component makes the fourth rotating shaft rotate synchronously with the two second rotating shafts, and at this time the side excavating wheel rotates synchronously with the middle excavating wheel, and the land is excavated, such as Fig. 9 As shown, it can be seen that the entire excavation equipment is capable of excavating a trapezoidal drainage ditch;

[0024] Secondly: the present invention moves the double-threaded rod, and the two ends of the double-threaded rod use threaded transmission to make the two internal threaded sleeves perform centering movement (the internal threaded sleeves perform synchronous and opposite movement), the sliding rod on the internal threaded sleeve pushes the concave plate with the help of the straight groove, the concave plate pushes the sleeve plate, the sleeve plate slides along the side baffle plate, the sliding rod and the straight groove slide relative to each other, the first fixed plate on the side baffle plate moves accordingly, and the side digging wheel moves with the first fixed plate, thereby changing the relative angle between the side digging wheel and the ground, that is, by adjusting the relative angle between the side digging wheel and the ground, trapezoidal drainage ditches with different inclinations can be excavated, thereby improving its scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall first-view structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall second viewing angle structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the overall third viewing angle structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the overall internal structure of the present invention;

[0030] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A;

[0031] Figure 6 for Figure 4 A schematic diagram of the front view structure of

[0032] Figure 7 It is a schematic diagram of the partial structure of the centering mechanism of the present invention;

[0033] Figure 8 It is a schematic diagram of the interior of the driving assembly of the present invention;

[0034] Fig. 9 It is a working schematic diagram of the present invention.

[0035] Reference numerals:

[0036] 1. Drive assembly; 2. Side baffle; 3. Sleeve plate; 4. Side digging wheel; 5. Centering mechanism; 6. First fixed plate; 7. Intermediate digging wheel; 8. Universal transmission shaft; 9. Double-section telescopic cylinder; 10. Intermediate shell; 11. Plow blade; 12. First bevel gear; 13. First rotating shaft; 14. Spline shaft; 15. Second bevel gear; 16. Second rotating shaft; 17. Reference shell; 18. Driven gear; 19. Drive motor; 20. Third rotating shaft; 21. Spline sleeve; 22. Concave plate; 23. Straight notch; 24. Slide rod; 25. Internal thread sleeve; 26. Double thread rod; 27. Second fixed plate; 28. Fourth rotating shaft; 29. ​​Transmission gear; 30. Fifth rotating shaft. DETAILED DESCRIPTION

[0037] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention provides drainage ditch digging equipment for highway construction by improvement. The technical solution of the present invention is:

[0039] like Figures 1 to 9 As shown, the embodiment of the present invention provides a drainage ditch excavation device for highway construction, including an intermediate shell 10, and also including:

[0040] Two side baffles 2, one end of the two side baffles 2 is respectively fixed on both sides of the middle shell 10, the ends of the two side baffles 2 that are far away from each other are both in an arc shape, and a sleeve plate 3 is slidably sleeved on one end of the side baffle 2 in the arc shape, and the sleeve plate 3 can rotate downward;

[0041] A centering mechanism 5, wherein the centering mechanism 5 enables the two sleeve plates 3 to move synchronously and in opposite directions along the side baffle plate 2;

[0042] Two first fixing plates 6, the tops of the two first fixing plates 6 are respectively fixed to the bottom of the sleeve plate 3;

[0043] Two side excavating wheels 4, the outer side of the fixing plate is provided with a second rotating hole, the inner side of the second rotating hole is rotatably mounted with a second rotating shaft 16, and the second rotating shaft 16 is coaxially fixed with the side excavating wheel 4;

[0044] Two intermediate excavating wheels 7, both sides of the intermediate shell 10 are provided with fourth rotating holes, the insides of the two fourth rotating holes are equipped with a fourth rotating shaft 28 for common rotation, and the two ends of the fourth rotating shaft 28 are respectively coaxially fixed with the two intermediate excavating wheels 7;

[0045] The driving assembly 1 causes the fourth rotating shaft 28 to rotate synchronously with the two second rotating shafts 16;

[0046] In the present invention, the two sleeve plates 3 are slid along the side baffle plates 2 by the centering mechanism 5, and the first fixing plate 6 on the sleeve plates 3 moves accordingly, and the side excavating wheel 4 moves along with the first fixing plate 6, thereby changing the relative angle between the side excavating wheel 4 and the ground. The driving assembly 1 makes the fourth rotating shaft 28 rotate synchronously with the two second rotating shafts 16, and the side excavating wheel 4 rotates synchronously with the middle excavating wheel 7 to excavate the land, such as Fig. 9 As shown, it can be seen that the entire excavating equipment is capable of excavating trapezoidal drainage ditches. By adjusting the relative angle between the side excavating wheel 4 and the ground, trapezoidal drainage ditches with different inclinations can be excavated, thereby improving its scope of application.

[0047] Specifically, the side excavating wheel 4 and the middle excavating wheel 7 have the same structure, and both the side excavating wheel 4 and the middle excavating wheel 7 include a round wheel and a plurality of excavating knives fixed at the edge of the round wheel;

[0048] In the present invention, when the circular wheel rotates at a high speed, the circular wheel digs the ground through the digging knife.

[0049] Specifically, the centering mechanism 5 includes a double-threaded rod 26, two concave plates 22 and two second fixed plates 27. The bottoms of the two second fixed plates 27 are respectively fixed to the tops of the two side baffles 2. A sixth rotating hole is provided on the outer side of the second fixed plate 27. The middle position of the double-threaded rod 26 is rotatably installed in the sixth rotating hole. Both ends of the double-threaded rod 26 are threadedly installed with internal threaded sleeves 25. One end of the internal threaded sleeve 25 is fixed with a slide bar 24. The bottoms of the two concave plates 22 are respectively fixed to the sleeve plate 3. Both ends of the concave plates 22 are provided with straight slots 23, and the two slide bars 24 are respectively slidably arranged in the straight slots 23 of the two concave plates 22.

[0050] In the present invention, the double-threaded rod 26 is moved, and the two ends of the double-threaded rod 26 cause the two internally threaded sleeves 25 to perform a centering movement through threaded transmission (the internally threaded sleeves 25 perform synchronous and opposite movement), and the slide rod 24 on the internally threaded sleeve 25 pushes the concave plate 22 with the help of the straight slot 23, and the concave plate 22 pushes the sleeve plate 3, and the sleeve plate 3 slides along the side baffle 2, and the slide rod 24 and the straight slot 23 slide relative to each other.

[0051] Specifically, the driving assembly 1 includes a reference shell 17, a guide assembly is provided between the bottom of the reference shell 17 and the top of the side baffle 2, and the guide assembly includes a plurality of double-section telescopic cylinders 9, and the two ends of the double-section telescopic cylinders 9 are respectively fixed to the bottom of the reference shell 17 and the top of the side baffle 2;

[0052] In the present invention, the guide assembly is arranged so that the reference housing 17 can only move linearly relative to the side baffle 2 .

[0053] Specifically, the drive assembly 1 also includes a drive motor 19, a third rotating shaft 20, a first transmission pair, two fifth rotating shafts 30 and two universal transmission shafts 8. The housing of the drive motor 19 is fixed on the reference shell 17. The top and the middle of the bottom of the reference shell 17 are provided with third rotating holes. The two ends of the third rotating shaft 20 are respectively rotatably mounted in the third rotating holes, and the output shaft of the drive motor 19 is coaxially fixed with the third rotating shaft 20. The bottom of the reference shell 17 is provided with two fifth rotating holes respectively located on both sides of the third rotating hole. One end of the fifth rotating shaft 30 is rotatably mounted in the fifth rotating hole. The two ends of the universal transmission shaft 8 are respectively fixed on the second rotating shaft 16 and the fifth rotating shaft 30. The third rotating shaft 20 and the fifth rotating shaft 30 rotate synchronously through the first transmission pair. The first transmission pair includes a transmission gear 29 and two driven gears 18 meshing with the transmission gear 29. The transmission gear 29 is coaxially fixed with the third rotating shaft 20, and the two driven gears 18 are respectively coaxially fixed with the fifth rotating shaft 30.

[0054] In the present invention, the driving motor 19 causes the third rotating shaft 20 to rotate axially through the output shaft, and the transmission gear 29 on the third rotating shaft 20 rotates accordingly. The transmission gear 29 causes the two driven gears 18 meshing therewith to rotate accordingly, and the driven gear 18 drives the fifth rotating shaft 30 to rotate accordingly. The fifth rotating shaft 30 causes the second rotating shaft 16 to rotate through the universal transmission shaft 8, and the second rotating shaft 16 causes the side excavating wheel 4 to rotate synchronously.

[0055] Specifically, the drive assembly 1 also includes a second transmission pair, a first rotating shaft 13, a first bevel gear 12 and a second bevel gear 15. A first rotating hole is opened on the top of the intermediate housing 10, one end of the first rotating shaft 13 is rotatably installed in the first rotating hole, the first bevel gear 12 is coaxially fixed with the first rotating shaft 13, the second bevel gear 15 is coaxially fixed with the fourth rotating shaft 28, the first bevel gear 12 is meshed with the second bevel gear 15, the third rotating shaft 20 is synchronously rotated with the first rotating shaft 13 through the second transmission pair, the second transmission pair includes a spline shaft 14 and a spline sleeve 21 sleeved on the spline shaft 14, the spline shaft 14 is coaxially fixed with the first rotating shaft 13, and the spline sleeve 21 is coaxially fixed with the third rotating shaft 20;

[0056] In the present invention, the third rotating shaft 20 causes the spline sleeve 21 to rotate synchronously, the spline sleeve 21 causes the first rotating shaft 13 to rotate synchronously through the spline shaft 14, the first bevel gear 12 on the first rotating shaft 13 rotates accordingly, the first bevel gear 12 drives the fourth rotating shaft 28 to rotate synchronously through the second bevel gear 15 meshing therewith, and the fourth rotating shaft 28 causes the intermediate excavating wheel 7 to rotate synchronously.

[0057] Specifically, a towing hook is fixed to the same side of the two side guard plates 2 , and the towing hook is used to be hooked on the towing end of the tractor.

[0058] Specifically, a plow blade 11 is fixed to the bottom of the intermediate shell 10 , and the plow blade 11 is used for positioning and breaking the soil.

[0059] Working principle: the double-threaded rod 26 is moved, and the two ends of the double-threaded rod 26 cause the two internally threaded sleeves 25 to perform centering movement through threaded transmission (the internally threaded sleeves 25 perform synchronous and opposite movement), and the slide bar 24 on the internally threaded sleeve 25 pushes the concave plate 22 with the help of the straight notch 23, and the concave plate 22 pushes the sleeve plate 3, and the sleeve plate 3 slides along the side baffle 2, and the slide bar 24 and the straight notch 23 slide relative to each other. At this time, the first fixed plate 6 on the sleeve plate 3 moves accordingly, and the side excavating wheel 4 moves with the first fixed plate 6, thereby changing the relative angle between the side excavating wheel 4 and the ground (when the sleeve plate 3 rotates downward, the sleeve plate 3 pulls the reference shell 17 downward through the universal transmission shaft 8, and the total length of the spline shaft 14 and the spline sleeve 21 is shortened accordingly), and the drive motor 19 drives the base housing 17 downward through the universal transmission shaft 8, and the total length of the spline shaft 14 and the spline sleeve 21 is shortened accordingly). The shaft causes the third rotating shaft 20 to rotate axially, and the transmission gear 29 on the third rotating shaft 20 rotates accordingly. The transmission gear 29 causes the two driven gears 18 meshing therewith to rotate accordingly, and the driven gear 18 drives the fifth rotating shaft 30 to rotate accordingly. The fifth rotating shaft 30 causes the second rotating shaft 16 to rotate through the universal transmission shaft 8, and the second rotating shaft 16 causes the side excavating wheel 4 to rotate synchronously. The third rotating shaft 20 causes the spline sleeve 21 to rotate synchronously, and the spline sleeve 21 causes the first rotating shaft 13 to rotate synchronously through the spline shaft 14, and the first bevel gear 12 on the first rotating shaft 13 rotates accordingly. The first bevel gear 12 drives the fourth rotating shaft 28 to rotate synchronously through the second bevel gear 15 meshing therewith, and the fourth rotating shaft 28 causes the intermediate excavating wheel 7 to rotate synchronously, so as to excavate the land. Fig. 9 As shown, it can be seen that the entire excavating equipment is capable of excavating trapezoidal drainage ditches. By adjusting the relative angle between the side excavating wheel 4 and the ground, trapezoidal drainage ditches with different inclinations can be excavated, thereby improving its scope of application.

[0060] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drainage ditch digging device for highway construction, comprising an intermediate shell (10), characterized in that: Also includes: Two side baffles (2), one end of each of the two side baffles (2) being fixed to two sides of the intermediate shell (10), the ends of the two side baffles (2) being away from each other being in an arc shape, and a sleeve plate (3) being slidably sleeved on one end of the side baffle (2) in the arc shape; A centering mechanism (5), wherein the centering mechanism (5) causes the two sleeve plates (3) to move synchronously and in opposite directions along the side baffle plate (2); Two first fixing plates (6), the tops of the two first fixing plates (6) being respectively fixed to the bottom of the sleeve plate (3); Two side excavating wheels (4), a second rotating hole is opened on the outer side of the fixing plate, a second rotating shaft (16) is rotatably mounted inside the second rotating hole, and the second rotating shaft (16) is coaxially fixed to the side excavating wheel (4); Two intermediate excavating wheels (7), both sides of the intermediate shell (10) are provided with fourth rotation holes, a fourth rotation shaft (28) is installed inside the two fourth rotation holes for common rotation, and both ends of the fourth rotation shaft (28) are respectively coaxially fixed to the two intermediate excavating wheels (7); A drive assembly (1), wherein the drive assembly (1) and the second rotating shaft (16) are connected together to a universal transmission shaft (8), the drive assembly (1) causes the second rotating shaft (16) to rotate via the universal transmission shaft (8), and the drive assembly (1) causes the fourth rotating shaft (28) to rotate synchronously with the two second rotating shafts (16).

2. The drainage ditch digging equipment for highway construction according to claim 1, characterized in that: The side excavating wheel (4) and the middle excavating wheel (7) have the same structure, and both the side excavating wheel (4) and the middle excavating wheel (7) comprise a circular wheel and a plurality of excavating knives fixed on the edge of the circular wheel.

3. The drainage ditch digging equipment for highway construction according to claim 1, characterized in that: The centering mechanism (5) comprises a double-threaded rod (26), two concave plates (22) and two second fixed plates (27); the bottoms of the two second fixed plates (27) are respectively fixed to the tops of the two side baffles (2); a sixth rotation hole is provided on the outer side of the second fixed plate (27); the middle position of the double-threaded rod (26) is rotatably mounted in the sixth rotation hole; both ends of the double-threaded rod (26) are threadedly mounted with internal thread sleeves (25); one end of the internal thread sleeve (25) is fixed with a slide rod (24); the bottoms of the two concave plates (22) are respectively fixed to the sleeve plate (3); both ends of the concave plates (22) are provided with straight slots (23); and the two slide rods (24) are respectively slidably arranged in the straight slots (23) of the two concave plates (22).

4. The drainage ditch digging equipment for highway construction according to claim 1, characterized in that: The drive assembly (1) comprises a reference shell (17), a guide assembly being arranged between the bottom of the reference shell (17) and the top of the side baffle (2), the guide assembly comprising a plurality of double-section telescopic cylinders (9), the two ends of the double-section telescopic cylinders (9) being respectively fixed to the bottom of the reference shell (17) and the top of the side baffle (2).

5. The drainage ditch digging equipment for highway construction according to claim 4, characterized in that: The drive assembly (1) further comprises a drive motor (19), a third rotating shaft (20), a first transmission pair and two fifth rotating shafts (30); a housing of the drive motor (19) is fixed on the reference housing (17); a third rotating hole is provided at the top and the middle of the bottom of the reference housing (17); two ends of the third rotating shaft (20) are respectively rotatably mounted in the third rotating holes; an output shaft of the drive motor (19) is coaxially fixed to the third rotating shaft (20); two fifth rotating holes are provided at the bottom of the reference housing (17) and are respectively located on both sides of the third rotating hole; one end of the fifth rotating shaft (30) is rotatably mounted in the fifth rotating hole; two ends of the universal transmission shaft (8) are respectively fixed on the second rotating shaft (16) and the fifth rotating shaft (30); the third rotating shaft (20) and the fifth rotating shaft (30) rotate synchronously via the first transmission pair.

6. The drainage ditch digging equipment for highway construction according to claim 5, characterized in that: The first transmission pair comprises a transmission gear (29) and two driven gears (18) both meshing with the transmission gear (29); the transmission gear (29) is coaxially fixed to the third rotating shaft (20); and the two driven gears (18) are coaxially fixed to the fifth rotating shaft (30), respectively.

7. The drainage ditch digging equipment for highway construction according to claim 5, characterized in that: The drive assembly (1) further comprises a second transmission pair, a first rotating shaft (13), a first bevel gear (12) and a second bevel gear (15); a first rotating hole is opened at the top of the intermediate housing (10); one end of the first rotating shaft (13) is rotatably mounted in the first rotating hole; the first bevel gear (12) is coaxially fixed with the first rotating shaft (13); the second bevel gear (15) is coaxially fixed with a fourth rotating shaft (28); the first bevel gear (12) is meshed with the second bevel gear (15); and the third rotating shaft (20) rotates synchronously with the first rotating shaft (13) via the second transmission pair.

8. The drainage ditch digging equipment for highway construction according to claim 7, characterized in that: The second transmission pair comprises a spline shaft (14) and a spline sleeve (21) sleeved on the spline shaft (14); the spline shaft (14) is coaxially fixed to the first rotating shaft (13); and the spline sleeve (21) is coaxially fixed to the third rotating shaft (20).

9. The drainage ditch digging equipment for highway construction according to claim 8, characterized in that: A towing hook is fixed to the same side of the two side baffles (2).

10. The drainage ditch digging equipment for highway construction according to claim 1, characterized in that: A plow blade (11) is fixed to the bottom of the intermediate shell (10).

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