Multi-layer pipe combined shaft for agricultural machine

Abstract

The utility model discloses a multi-layer pipe combination shaft for agricultural machinery, a round pipe a is connected in a round pipe b in a matching way, the two ends of the round pipe b are welded with the round pipe a, a plurality of round plug welding holes at intervals are formed in the circumferential directions of the round pipe b, the round pipe c, the round pipe d, the round pipe e and the round pipe f, and the round pipe b is welded with the round pipe a through the plug welding holes; the round pipe c is connected outside the round pipe b in a matched mode, the two ends of the round pipe c are welded to the round pipe b, and the round pipe c is welded to the round pipe b through plug welding holes; the round pipe d is connected outside the round pipe c in a matched mode, the two ends of the round pipe d are welded to the round pipe c, and the round pipe d is welded to the round pipe c through plug welding holes; the round pipe e is connected outside the round pipe d in a matched mode, the two ends of the round pipe e are welded to the round pipe d, and the round pipe e is welded to the round pipe d through plug welding holes; the round pipe f is connected outside the round pipe e in a matched mode, the two ends of the round pipe f are welded to the round pipe e, and the round pipe f is welded to the round pipe e through the plug welding holes. According to the utility model, the strength of the working shaft is effectively improved, and the condition that the working shaft is broken during working is avoided.

Description

Technical Field

[0001] The utility model relates to a multi-layer tube combined shaft for agricultural machinery, belonging to the technical field of agricultural machinery. Background Art

[0002] The working shafts used in existing agricultural machinery such as beaters, reclaimers, rotary tillers, stubble destroyers and combined tillers are all single tubular shafts with low strength. When working, the agricultural machinery will experience greater vibrations during work due to the uneven use site and mixed soil and rocks, thereby increasing the wear of agricultural machinery parts and components and easily leading to breakage of the working shaft. Especially when opening the field, due to continuous rain for many days and wet land, the water content in the soil is relatively high, and the agricultural machinery is greatly obstructed at work. Especially for low-power, low-torque agricultural machinery, it consumes more energy when working, and is more likely to have a working shaft break, causing work to stagnate and affecting work efficiency. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a multi-layer tube combined shaft for agricultural machinery, which effectively increases the strength of the working shaft, avoids the breakage of the working shaft during operation, and ensures the stability of the agricultural machinery operation.

[0004] The utility model solves the technical problem by adopting the following technical solution: a multi-layer tube combined shaft for agricultural machinery, comprising a round tube a, a round tube b, a round tube c, a round tube d, a round tube e and a round tube f, wherein the round tube a is connected in cooperation with the round tube b, both ends of the round tube a protrude from the round tube b, and both ends of the round tube b are welded to the tube body of the round tube a, and the round tubes b, the round tubes c, the round tubes d, the round tubes e and the round tube f are all provided with a plurality of spaced circular plug welding holes in the circumferential direction, and the tube body of the round tube b is welded to the round tube a through its own plug welding holes; the round tube c is connected in cooperation with the outside of the round tube b, both ends of the round tube b protrude from the round tube c, and both ends of the round tube c are welded to the round tube b , the tube body of round tube c is welded to round tube b through its own plug welding hole; round tube d is connected to the outside of round tube c, both ends of round tube c protrude from round tube d, both ends of round tube d are welded to round tube c, and the tube body of round tube d is welded to round tube c through its own plug welding hole; round tube e is connected to the outside of round tube d, both ends of round tube d protrude from round tube e, both ends of round tube e are welded to round tube d, and the tube body of round tube e is welded to round tube d through its own plug welding hole; round tube f is connected to the outside of round tube e, both ends of round tube e protrude from round tube f, both ends of round tube f are welded to round tube e, and the tube body of round tube f is welded to round tube e through its own plug welding hole.

[0005] The innermost tube a is the longest, and the outermost tube f is the shortest. From the inside to the outside, the length of each tube layer is greater than the length of the adjacent outer tube layer, and the two ends of the combined shaft are stepped.

[0006] The beneficial effects of the utility model are as follows: the utility model is a combined shaft composed of multiple layers of tube bodies, the strength of which is much greater than that of a single shaft body, and is suitable for agricultural machinery devices such as beaters, reclamation machines, rotary tillers, stubble removers and combined land preparation machines; through the fixed connection between several layers of tube bodies, the overall strength of the working shaft is effectively increased, and it can effectively withstand mechanical stresses from aspects such as rotation speed and temperature. The multiple tube bodies are jointly subjected to force, which avoids the working shaft from breaking during operation, enables the work to proceed smoothly, and ensures the stability of the agricultural machinery operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0010] Numbers in the figure:

[0011] 1. Round tube a, 2. Round tube b, 3. Round tube c, 4. Round tube d, 5. Round tube e, 6. Round tube f, 7. Plug welding hole. DETAILED DESCRIPTION

[0012] like Figure 1 As shown in FIG. 2, a multi-layer tube composite shaft for agricultural machinery comprises a round tube a1, a round tube b2, a round tube c3, a round tube d4, a round tube e5 and a round tube f6, wherein the round tube a1 is connected in cooperation with the round tube b2, both ends of the round tube a1 protrude from the round tube b2, and both ends of the round tube b2 are welded to the tube body of the round tube a1, and the round tubes b2, the round tubes c3, the round tubes d4, the round tubes e5 and the round tubes f6 are provided with a plurality of circular plug welding holes 7 at intervals in the circumferential direction, and the tube body of the round tube b2 is welded to the round tube a1 through its own plug welding holes 7; the round tube c3 is connected in cooperation with the outside of the round tube b2, both ends of the round tube b2 protrude from the round tube c3, and both ends of the round tube c3 are welded to the round tube b2, and the tube body of the round tube c3 is welded through Its own plug welding hole 7 is welded to the round tube b2; the round tube d4 is connected to the outside of the round tube c3, the two ends of the round tube c3 protrude from the round tube d4, the two ends of the round tube d4 are welded to the round tube c3, and the tube body of the round tube d4 is welded to the round tube c3 through its own plug welding hole 7; the round tube e5 is connected to the outside of the round tube d4, the two ends of the round tube d4 protrude from the round tube e5, the two ends of the round tube e5 are welded to the round tube d4, and the tube body of the round tube e5 is welded to the round tube d4 through its own plug welding hole 7; the round tube f6 is connected to the outside of the round tube e5, the two ends of the round tube e5 protrude from the round tube f6, the two ends of the round tube f6 are welded to the round tube e5, and the tube body of the round tube f6 is welded to the round tube e5 through its own plug welding hole 7.

[0013] The innermost tube a1 is the longest, and the outermost tube f6 is the shortest. From the inside to the outside, the length of each tube layer is greater than the length of the adjacent outer tube layer, and the two ends of the combined shaft are stepped.

[0014] The device is suitable for use in agricultural machinery devices such as beaters, reclaimers, rotary tillers, stubble destroyers and combined land preparation machines. The multi-layer tube combined shaft is fixedly connected between several layers of tube bodies. From the inside to the outside, the two ends of each tube body and several plug welding holes in the circumferential direction of the tube body are welded to the tube body matched with the inside thereof, so that these tube bodies form an integral through shaft, which effectively improves the strength of the combined shaft. When the combined shaft is subjected to force, it is no longer subjected to force by a single tube shaft, but by multiple tube bodies to bear the force together and share the force together, and can effectively withstand mechanical stress from aspects such as rotation speed and temperature, so that the strength of the combined shaft composed of the multi-layer tube bodies is much greater than that of a single shaft body; the two ends of the combined shaft are stepped, which facilitates the installation of the combined shaft and the driving components and supporting components of the agricultural machinery; during use, the combined shaft can withstand a large impact load, and will not break due to excessive resistance during work, and the number of round tube layers required for the combined shaft can be selected according to actual use conditions; after long-term use verification, the multi-layer tube combined shaft has a good use effect.

Claims

1. A multi-layer tube composite shaft for agricultural machinery, characterized in that: The invention comprises a circular tube a (1), a circular tube b (2), a circular tube c (3), a circular tube d (4), a circular tube e (5) and a circular tube f (6), wherein the circular tube a (1) is connected in cooperation with the circular tube b (2), both ends of the circular tube a (1) protrude from the circular tube b (2), and both ends of the circular tube b (2) are welded to the tube body of the circular tube a (1). The circular tubes b (2), c (3), d (4), e (5) and f (6) are provided with a plurality of circular plug welding holes (7) at intervals in the circumferential direction, and the tube body of the circular tube b (2) is welded to the circular tube a (1) through its plug welding holes (7); the circular tube c (3) is connected in cooperation with the outside of the circular tube b (2), both ends of the circular tube b (2) protrude from the circular tube c (3), and both ends of the circular tube c (3) are welded to the circular tube b (2), and the tube body of the circular tube c (3) is welded to the circular tube a (1) through its plug welding holes (7). The round tube b (2) is welded; the round tube d (4) is connected to the outside of the round tube c (3), the two ends of the round tube c (3) protrude from the round tube d (4), the two ends of the round tube d (4) are welded to the round tube c (3), and the tube body of the round tube d (4) is welded to the round tube c (3) through its own plug welding hole (7); the round tube e (5) is connected to the outside of the round tube d (4), the two ends of the round tube d (4) protrude from the round tube e (5), the two ends of the round tube e (5) are welded to the round tube d (4), and the tube body of the round tube e (5) is welded to the round tube d (4) through its own plug welding hole (7); the round tube f (6) is connected to the outside of the round tube e (5), the two ends of the round tube e (5) protrude from the round tube f (6), the two ends of the round tube f (6) are welded to the round tube e (5), and the tube body of the round tube f (6) is welded to the round tube e (5) through its own plug welding hole (7).

2. The multi-layer tube composite shaft for agricultural machinery according to claim 1, characterized in that: The innermost circular tube a (1) is the longest, and the outermost circular tube f (6) is the shortest. From the inside to the outside, the length of each layer of the tube body is greater than the length of the adjacent outer layer of the tube body, and the two ends of the combined shaft are stepped.

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