Soil discharging mechanism of ditcher

Abstract

The utility model discloses a dumping mechanism of a ditcher, which comprises a frame, a driving device, a double-helix blade and a fender, and the driving device comprises an output shaft rotatably connected to the frame and a driving unit for driving the output shaft to rotate; the double-spiral blade comprises a connecting shaft, a first spiral blade and a second spiral blade, the connecting shaft is connected with the output shaft, the first spiral blade and the second spiral blade are fixedly connected to the outer wall of the connecting shaft, and the rotating direction of the first spiral blade and the rotating direction of the second spiral blade are opposite; the mud guard is fixedly connected to the rack and correspondingly arranged on the rear side of the double-spiral blade, the double-spiral blade is adopted for dumping, the dumping efficiency of the dumping mechanism is improved, the load of a single spiral blade during dumping is reduced, and the service life of the spiral blade is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of trenching machines, and in particular to a soil discharge mechanism for a trenching machine. Background Technology

[0002] A trenching machine is a type of engineering machinery used for digging ditches. Trenching machines are used in many fields to dig ditches efficiently and accurately, improving engineering efficiency and quality. For example, they are used in agricultural irrigation, drainage systems, cable laying, pipeline installation, road construction, landscaping, and building construction.

[0003] The soil discharge mechanism of the trenching machine includes an output shaft, a spiral blade connected to the output shaft, a drive device that drives the output shaft to rotate, and a mudguard connected to the frame and located at the rear end of the spiral blade. For details, please refer to the trenching component of a chain trenching machine disclosed in Chinese Patent Announcement No. (CN113863408B).

[0004] However, existing waste disposal mechanisms still have the following problems:

[0005] 1. The spiral blades have a single spiral structure, resulting in low soil removal efficiency and high load during soil removal, thus leading to a shorter service life.

[0006] 2. The existing relative position of the spiral blades and the output shaft is fixed. When a wider chain needs to be replaced, the chain will interfere with the spiral blades, resulting in poor versatility. Therefore, it needs to be improved. Utility Model Content

[0007] The purpose of this invention is to provide a soil discharge mechanism for a trencher, which uses double helical blades for soil discharge, thereby improving the soil discharge efficiency, reducing the load on a single helical blade during soil discharge, and extending the service life of the blades.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a soil discharge mechanism for a trenching machine, comprising...

[0009] frame,

[0010] The drive device includes an output shaft rotatably connected to the frame and a drive unit that drives the output shaft to rotate.

[0011] The double helical blade includes a connecting shaft, a first helical blade, and a second helical blade. The connecting shaft is connected to the output shaft. The first and second helical blades are fixedly connected to the outer wall of the connecting shaft, and the rotation directions of the first and second helical blades are opposite.

[0012] Mudguards are fixedly connected to the frame and are positioned on the rear side of the double helical blades.

[0013] Furthermore, the first and second helical blades are offset by 180° at the starting position of the connecting shaft.

[0014] Furthermore, the mudguard has an arc-shaped structure and surrounds the rear side of the double-helix blade.

[0015] Furthermore, the double helical blades are arranged perpendicular to the tool chain of the trencher.

[0016] Furthermore, the position of the double helical blades along the length of the output shaft is adjustablely connected to the output shaft.

[0017] Furthermore, the output shaft is sleeved with the double helix blade. One end of the output shaft connected to the double helix blade is provided with multiple sets of first connecting holes spaced apart along the length of the output shaft. The connecting shaft of the double helix blade is provided with a second connecting hole that matches the first connecting hole. When assembling the double helix blade, the second connecting hole is aligned with the first connecting hole at the required position. The first connecting piece is inserted into the aligned first connecting hole and second connecting hole and locked to fix the output shaft and the double helix blade.

[0018] Furthermore, the output shaft is provided with a plurality of third connecting holes spaced apart along its length. The third connecting holes are offset from the first connecting holes along the axial direction of the output shaft and offset from the first connecting holes along the circumferential direction of the output shaft. The double helical blade is provided with a fourth connecting hole that is offset from the second connecting hole and matches the third connecting hole. When assembling the double helical blade, when the second connecting hole is aligned with the first connecting hole at the required position, the fourth connecting hole is aligned with the corresponding second connecting hole. The second connecting piece is inserted into the third connecting hole and the fourth connecting hole and locked.

[0019] Furthermore, the connecting shaft is provided with a central channel, the diameter of which matches the outer diameter of the output shaft, and is fitted with double helical blades. The connecting shaft is fitted onto the outside of the output shaft.

[0020] Furthermore, the first connecting hole passes through the connecting shaft, and the first connecting member includes a connecting post and an elastic pin. One end of the connecting post is provided with a limit cap, and the other end of the connecting post is provided with a socket. The elastic pin is inserted into the socket to fix the output shaft and the double helix blades.

[0021] Furthermore, the first connecting hole is a threaded hole with a limiting end face at the inner end of the threaded hole, and the first connecting member is a connecting screw that matches the threaded hole.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. The soil discharge mechanism of the trencher of this utility model adopts double helical blades for soil discharge, which improves the soil discharge efficiency of the soil discharge mechanism, reduces the load on a single helical blade during soil discharge, and extends the service life of the blades.

[0024] 2. The soil discharge mechanism of the trencher of this utility model has a double helical blade whose position in the length direction of the output shaft is adjustable to the output shaft. The position of the double helical blade can be adjusted according to the width of the tool chain to ensure the distance between the end of the double helical blade and the tool chain, while avoiding interference with the tool chain, thus effectively improving the applicability of the soil discharge mechanism. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is an exploded view of the present invention.

[0027] Figure 3 This is the utility model Figure 2 Enlarged view of point A.

[0028] Figure 4 This is a schematic diagram of the structure of the double helix blade of this utility model.

[0029] In the diagram: 10, frame; 20, drive unit; 21, output shaft; 211, first connecting hole; 212, third connecting hole; 22, drive unit; 30, double helical blade; 31, connecting shaft; 311, second connecting hole; 312, fourth connecting hole; 32, first helical blade; 33, second helical blade; 40, mudguard; 50, tool chain; 60, first connector; 61, connecting post; 611, limit cap; 612, insertion hole; 62, elastic pin; 70, second connector. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] like Figures 1-4 As shown, a soil discharge mechanism for a trenching machine includes a frame 10, a drive device 20, double helical blades 30, and a mudguard 40, which constitute the basic structure of this utility model.

[0032] The drive device 20 includes an output shaft 21 rotatably connected to the frame 10 and a drive unit 22 that drives the output shaft 21 to rotate. Specifically, the output shaft 21 is arranged laterally in the left-right direction. The drive unit 22 includes a motor fixedly connected to the frame 10 and a gearbox connected to the output end of the motor. The output end of the gearbox is connected to the output shaft 21.

[0033] The double helical blade 30 includes a connecting shaft 31, a first helical blade 32, and a second helical blade 33. The connecting shaft 31 is connected to the output shaft 21. The first helical blade 32 and the second helical blade 33 are fixedly connected to the outer wall of the connecting shaft 31, and the rotation directions of the first helical blade 32 and the second helical blade 33 are opposite. Specifically, the first helical blade 32 and the second helical blade 33 are integrally formed on the connecting shaft 31, and the pitch of the first helical blade 32 and the second helical blade 33 are equal. The soil discharge mechanism of the trencher of this utility model adopts double helical blades for soil discharge, which improves the soil discharge efficiency of the soil discharge mechanism, reduces the load on a single helical blade during soil discharge, and extends the service life of the blades.

[0034] The mudguard 40 is fixedly connected to the frame 10 and is correspondingly arranged on the rear side of the double helical blade 30. The function of the mudguard 40 is to prevent the mud discharged from the double helical blade 30 from splashing onto the operator and to block the mud.

[0035] In some embodiments, the first helical blade 32 and the second helical blade 33 are offset by 180° at the starting position of the connecting shaft 31. Specifically, the first helical blade 32 and the second helical blade 33 are arranged on the connecting shaft 31 in a centrally symmetrical manner. The purpose of this arrangement is to make the soil discharge more uniform, the soil discharge more stable, and the strength higher.

[0036] In some embodiments, the mudguard 40 has an arc-shaped structure and surrounds the rear side of the double helical blade 30. Further, the mudguard 40 has a semi-circular arc structure with the output shaft 21 as the axis, or a near-semi-circular arc structure, which can block mud splashes over a wider range.

[0037] In some embodiments, the double helical blades 30 are arranged perpendicularly to the tool chain 50 of the trencher, that is, the tool chain 50 is arranged in the front-back direction, i.e., longitudinally. The structure of the tool chain 50 is not the inventive point of this utility model, and will not be described in this utility model.

[0038] In some embodiments, the position of the double helix blade 30 along the length of the output shaft 21 is adjustablely connected to the output shaft 21. Specifically, the output shaft 21 is sleeved with the double helix blade 30, and one end of the output shaft 21 connected to the double helix blade 30 is provided with multiple sets of first connecting holes 211 spaced apart along the length of the output shaft 21. The connecting shaft 31 of the double helix blade 30 is provided with a second connecting hole 311 that matches the first connecting hole 211. When assembling the double helix blade 30, the second connecting hole 311 is aligned with the first connecting hole 211 at the desired position, and the first connecting member 60 is inserted into the aligned first connecting hole 211 and second connecting hole 311 and locked to fix the output shaft 21 and the double helix blade 30.

[0039] In some embodiments, the output shaft 21 is provided with a plurality of third connecting holes 212 spaced apart along its length. The third connecting holes 212 are offset from the first connecting holes 211 along the axial direction of the output shaft 21, and the third connecting holes 212 are offset from the first connecting holes 211 along the circumferential direction of the output shaft 21. The double helical blade 30 is provided with a fourth connecting hole 312 that is offset from the second connecting hole 311 and matches the third connecting hole 212. When assembling the double helical blade 30, when the second connecting hole 311 is aligned with the first connecting hole 211 at the required position, the fourth connecting hole 312 is aligned with the corresponding second connecting hole 311. The second connector 70 is inserted into the third connecting hole 212 and the fourth connecting hole 312 and locked.

[0040] In some embodiments, the connecting shaft 31 is provided with a central channel, the diameter of which matches the outer diameter of the output shaft 21, and a double helical blade 30 is fitted thereon, with the connecting shaft 31 fitted onto the outside of the output shaft 21.

[0041] In some embodiments, the first connecting hole 211 passes through the connecting shaft 31, and the first connecting member 60 includes a connecting post 61 and an elastic pin 62. One end of the connecting post 61 is provided with a limit cap 611, and the other end of the connecting post 61 is provided with a socket 612. The elastic pin 62 is inserted into the socket 612 to fix the output shaft 21 and the double helix blade 30. Further, the third connecting hole 212 also passes through the connecting shaft 31. The first connecting member 60 and the second connecting member 70 include a connecting post 61 and an elastic pin 62. One end of the connecting post 61 is provided with a limit cap 611, and the other end of the connecting post 61 is provided with a socket 612. The elastic pin 62 is inserted into the socket 612 to fix the output shaft 21 and the double helix blade 30.

[0042] In some embodiments, the first connecting hole 211 is a threaded hole with a limiting end face at its inner end, and the first connecting member 60 is a connecting screw that matches the threaded hole. Further, the third connecting hole 212 is also a threaded hole, and the second connecting member 70 is a connecting screw.

[0043] The soil discharge mechanism of the trencher of this utility model has a double helical blade 30 whose position in the length direction of the output shaft 21 is adjustable to the output shaft 21. The position of the double helical blade 30 can be adjusted according to the width of the cutter chain 50 to ensure the distance between the end of the double helical blade 30 and the cutter chain 50, while avoiding interference with the cutter chain 50, thus effectively improving the applicability of the soil discharge mechanism.

[0044] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A soil removal mechanism for a trenching machine, characterized in that: include Rack (10), The drive device (20) includes an output shaft (21) rotatably connected to the frame (10) and a drive unit (22) that drives the output shaft (21) to rotate. The double helical blade (30) includes a connecting shaft (31), a first helical blade (32) and a second helical blade (33). The connecting shaft (31) is connected to the output shaft (21). The first helical blade (32) and the second helical blade (33) are fixedly connected to the outer wall of the connecting shaft (31), and the first helical blade (32) and the second helical blade (33) are arranged in opposite directions. Mudguard (40) is fixedly connected to the frame (10) and is disposed on the rear side of the double helical blade (30).

2. The soil discharge mechanism of a trenching machine according to claim 1, characterized in that: The first helical blade (32) and the second helical blade (33) are offset by 180° at the starting position of the connecting shaft (31).

3. The soil discharge mechanism of a trenching machine according to claim 1, characterized in that: The mudguard (40) has an arc-shaped structure and surrounds the rear side of the double helical blade (30).

4. The soil discharge mechanism of a trenching machine according to claim 1, characterized in that: The double helical blades (30) are set perpendicular to the tool chain (50) of the trencher.

5. A soil removal mechanism for a trencher according to any one of claims 1-4, characterized in that: The position of the double helix blade (30) along the length of the output shaft (21) is adjustablely connected to the output shaft (21).

6. The soil discharge mechanism of a trenching machine according to claim 5, characterized in that: The output shaft (21) is sleeved with the double helix blade (30). One end of the output shaft (21) connected to the double helix blade (30) is provided with a plurality of first connecting holes (211) spaced apart along the length of the output shaft (21). The connecting shaft (31) of the double helix blade (30) is provided with a second connecting hole (311) that matches the first connecting hole (211). When assembling the double helix blade (30), the second connecting hole (311) is aligned with the first connecting hole (211) at the required position. The first connecting piece (60) is inserted into the aligned first connecting hole (211) and second connecting hole (311) and locked to fix the output shaft (21) and the double helix blade (30).

7. The soil discharge mechanism of a trenching machine according to claim 6, characterized in that: The output shaft (21) is provided with a plurality of third connecting holes (212) spaced apart along its length. The third connecting holes (212) and the first connecting holes (211) are offset from each other along the axial direction of the output shaft (21) and are offset from each other along the circumferential direction of the output shaft (21). The double helix blade (30) is provided with a fourth connecting hole (312) that is offset from the second connecting hole (311) and matches the third connecting hole (212). When assembling the double helix blade (30), when the second connecting hole (311) is aligned with the first connecting hole (211) at the required position, the fourth connecting hole (312) is aligned with the corresponding second connecting hole (311). The third connecting hole (212) and the fourth connecting hole (312) are inserted and locked by the second connector (70).

8. The soil discharge mechanism of a trenching machine according to claim 5, characterized in that: The connecting shaft (31) is provided with a central channel, the diameter of which matches the outer diameter of the output shaft (21), and is fitted with double helical blades (30). The connecting shaft (31) is fitted onto the outside of the output shaft (21).

9. The soil discharge mechanism of a trenching machine according to claim 6, characterized in that: The first connecting hole (211) passes through the connecting shaft (31). The first connecting member (60) includes a connecting post (61) and an elastic pin (62). One end of the connecting post (61) is provided with a limit cap (611), and the other end of the connecting post (61) is provided with a socket (612). The elastic pin (62) is inserted into the socket (612) to fix the output shaft (21) and the double helix blade (30) in place.

10. The soil discharge mechanism of a trenching machine according to claim 6, characterized in that: The first connecting hole (211) is a threaded hole with a limiting end face at the inner end of the threaded hole, and the first connecting piece (60) is a connecting screw that matches the threaded hole.

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