Stable agricultural machinery gearbox transmission shaft

Abstract

The utility model discloses a stable agricultural machinery gearbox transmission shaft which comprises a transmission shaft body. And the protection assembly comprises an inner shell, heat dissipation holes, a connecting column, an outer shell and a connecting plate. Through the arrangement of the inner shells and the outer shell, when the outer shell is subjected to impact force, the impact force on the outer shell can be dispersed under the arrangement of the connecting columns, so that the influence of deformation on the outer shell is reduced, through the double-layer design, the service life of the protective cover is longer, and when the two sets of inner shells and outer shells need to be fixed together, the protective cover is not prone to deformation. A tool is placed into a connecting hole, pulling force is applied to a movable rod, so that a spring is in a compressed state, a mounting block is aligned to a mounting groove, pressing force is applied to two sets of shells, the mounting block penetrates through the mounting groove, the force applied to the movable rod is cancelled, and a limiting column is bounced into the mounting block, and according to the scheme, the overall structure is more stable and firmer; the service lives of the outer shell and the inner shell are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shafts, in particular to a stable transmission shaft for an agricultural machinery gearbox. Background Technique

[0002] The stable transmission shaft for an agricultural machinery gearbox is a device for power transmission in modern agricultural machinery. Its function is to transmit the power generated by the engine to agricultural implements through the transmission shaft, driving the agricultural machinery to operate. The transmission shaft not only improves the durability of the equipment but also significantly reduces the maintenance cost and time, making it an indispensable part of modern agricultural machinery.

[0003] After retrieval, Chinese authorized publication number CN217814506U discloses a stable transmission shaft for an agricultural machinery gearbox. It includes a transmission shaft, which is a transmission shaft for an agricultural machinery gearbox; a protective cover, which includes a fixing rod and a clamping block. The protective cover is arranged on the upper and lower sides of the transmission shaft and is clamped and fixed to the transmission shaft; a connecting ring, which is fixedly installed on the inner wall of the outer side of the protective cover. The beneficial effects are: through the structure of the protective cover, the main body of the transmission shaft is protected to prevent it from being affected by harsh environments and avoid the transmission shaft from being collided by flying mud blocks and stones during operation, causing damage to the shaft rod. Through the structure of the clamping block and the fixing seat, the protective cover is pre-fixed, facilitating the alignment of the insertion rod and the slot on the fixing seat, and facilitating the fixing and installation of the protective cover on the outer side of the transmission shaft by the insertion rod. Through the structure of the sliding ring, the slot is controlled to contract into the connecting ring, facilitating the disassembly of the protective cover on the transmission shaft.

[0004] In the actual use process of the existing transmission shaft, a protective cover can be set to protect the shaft body part of the transmission shaft. However, the set protective cover is attached to the shaft body. When the protective cover is subjected to an impact force, the protective cover is prone to breakage. Over time, in order to better protect the shaft body, the protective cover needs to be frequently replaced, increasing the maintenance cost. Therefore, a stable transmission shaft for an agricultural machinery gearbox is needed to increase the structural stability and reduce the replacement of the protective cover. Content of the Utility Model

[0005] The purpose of the utility model is to provide a stable transmission shaft for an agricultural machinery gearbox to solve the problem proposed in the above background technique that in the actual use process of the existing transmission shaft, a protective cover can be set to protect the shaft body part of the transmission shaft. However, the set protective cover is attached to the shaft body. When the protective cover is subjected to an impact force, the protective cover is prone to breakage. Over time, in order to better protect the shaft body, the protective cover needs to be frequently replaced, increasing the maintenance cost.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a stable transmission shaft for an agricultural machinery gearbox, comprising:

[0008] A transmission shaft main body;

[0009] A protection component, which includes an inner shell, heat dissipation holes, connecting columns, an outer shell and connecting plates;

[0010] Among them, two groups of the inner shells are provided. The heat dissipation holes are arranged in a circumferential array inside any one of the inner shells. The connecting columns are fixedly arranged in a circumferential array on the outer surface of the inner shell. The outer shell is fixed on the outer surface of the connecting columns. The connecting plates are fixed on the outer surfaces of the inner shell and the outer shell, and four groups of the connecting plates are provided.

[0011] Further, an installation block is fixed on the surface of one side of the connecting plate, an installation groove is formed inside the connecting plate on the other side, and a support plate is fixed on the outer surface of the connecting plate on the other side. The support plate is located above the installation block.

[0012] Further, a movable rod is connected through the support plate. A connecting hole is formed inside the top end of the movable rod. A limiting column is fixed on the lower surface of the movable rod. The limiting column is located above the installation block. A spring is fixed between the limiting column and the inside of the support plate.

[0013] Further, a fixing component is further included, and the fixing component includes a fixing block, a fixing frame and a threaded rod;

[0014] Among them, the fixing blocks are fixed on the lower surfaces of the outer shell and the inner shell. Two groups of the fixing blocks are provided. The fixing frame is sleeved outside any one of the fixing blocks. The lower surface of the fixing frame is fixed to the outer surface of the transmission shaft main body. The threaded rod is in threaded connection with the inside of the fixing block and the fixing frame.

[0015] Further, a fixing plate is fixed on the outer surface of the threaded rod, and a fixing hole is formed inside the fixing plate.

[0016] Further, a limiting tube is sleeved inside the fixing block and the fixing frame. A magnet is embedded inside the limiting tube. A magnet is embedded inside the fixing block. A guiding hole is formed inside the limiting tube.

[0017] Compared with the prior art, the advantages of the utility model are as follows:

[0018] I. In this utility model, by providing an inner shell and an outer shell, when the outer shell is subjected to an impact force, with the arrangement of the connecting columns, the impact force on the outer shell can be dispersed, thereby reducing the influence of deformation on the outer shell. Moreover, through the double-layer design, the service life of the protective cover is longer. When it is necessary to fix two sets of inner shells and outer shells together, put a tool into the connecting hole, apply a pulling force to the movable rod to compress the spring, align the installation block with the installation slot, apply a pressing force to the two outer shells, pass the installation block through the installation slot, cancel the force applied to the movable rod, and the limiting post will spring into the installation block. This solution makes the overall structure more stable and firm, and extends the service life of the outer shell and the inner shell.

[0019] II. Based on the beneficial effect I, when it is necessary to fix the outer shell outside the main transmission shaft with the cooperation of the fixing component, insert the fixing block into the fixing frame, then insert the threaded rod into the fixing block and the fixing frame. Put a screwdriver into the fixing hole and continuously rotate the screwdriver to make the fixing plate and the threaded rod in a rotating state. Fix the threaded rod in the fixing block and the fixing frame, and then insert the limiting tube into the fixing block and the fixing frame so that the magnets are connected together. This solution can stably fix the outer shell and the inner shell outside the main transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a three-dimensional schematic diagram of this utility model;

[0022] Figure 2 is a structural diagram of the protective component of this utility model;

[0023] Figure 3 is this utility model Figure 2 is an enlarged view of part A;

[0024] Figure 4 is a cross-sectional view of the fixing component of this utility model.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 11. Main transmission shaft;

[0027] 21. Inner shell; 22. Heat dissipation holes; 23. Connecting columns; 24. Outer shell; 25. Connecting plates; 26. Installation grooves; 27. Installation blocks; 28. Support plates; 29. Movable rods; 291. Connecting holes; 292. Limit posts; 293. Springs;

[0028] 31. Fixed blocks; 32. Fixed frames; 33. Threaded rods; 34. Fixed plates; 35. Fixed holes; 36. Limit tubes; 37. Magnets; 38. Guide holes. Detailed implementation manners

[0029] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation manners disclosed below.

[0031] To make the purpose, technical solution, and advantages of the present utility model clearer, the following will further describe the implementation manners of the present utility model in detail in conjunction with the accompanying drawings.

[0032] Please refer to Figures 1 - 3 As shown, this embodiment is a stable agricultural machinery transmission shaft, including:

[0033] Transmission shaft main body 11;

[0034] Protection assembly, the protection assembly includes an inner shell 21, heat dissipation holes 22, connecting columns 23, an outer shell 24, and a connecting plate 25;

[0035] Among them, two groups of inner shells 21 are provided. The heat dissipation holes 22 are arranged in a circumferential array inside any one group of inner shells 21. The connecting columns 23 are fixed on the outer surface of the inner shell 21 in a circumferential array. The outer shell 24 is fixed on the outer surface of the connecting columns 23. The connecting plate 25 is fixed on the outer surfaces of the inner shell 21 and the outer shell 24. Four groups of connecting plates 25 are provided;

[0036] Under the design of the heat dissipation holes 22, the air inside the transmission shaft main body 11 flows, avoiding the transmission shaft main body 11 from overheating and affecting the normal use of the transmission shaft main body 11. The connecting columns 23 are used to connect the outer shell 24 and the inner shell 21 together, and the connecting plate 25 is used to connect the two groups of outer shells 24 together;

[0037] On one side of the connecting plate 25, a mounting block 27 is fixed on the surface, on the other side, a mounting groove 26 is formed inside the connecting plate 25, and a support plate 28 is fixed on the outer surface of the other side connecting plate 25. The support plate 28 is located on top of the mounting block 27;

[0038] The mounting groove 26 is for the mounting block 27 to pass through its interior, thereby connecting the two sets of connecting plates 25 together, and the support plate 28 is for the movable rod 29 to move inside it;

[0039] A movable rod 29 is connected through the interior of the support plate 28. A connection hole 291 is formed inside the top end of the movable rod 29. A limiting post 292 is fixed on the lower surface of the movable rod 29. The limiting post 292 is located on top of the mounting block 27, and a spring 293 is fixed between the limiting post 292 and the interior of the support plate 28;

[0040] The movable rod 29 is used to change the position of the limiting post 292. The connection hole 291 facilitates applying a pulling force to the movable rod 29. The limiting post 292 is used to limit the mounting block 27 in the required position, and the spring 293 is used to change the position of the limiting post 292;

[0041] When the outer shell 24 is subjected to an impact force, with the setting of the connecting column 23, the impact force on the outer shell 24 can be dispersed, thereby reducing the influence of deformation on the outer shell 24. And through the double-layer design, the service life of the protective cover is longer. When it is necessary to fix the two sets of inner shells 21 and the outer shell 24 together, put a tool into the connection hole 291, apply a pulling force to the movable rod 29 to make the spring 293 in a compressed state, align the mounting block 27 with the mounting groove 26, apply a pressing force to the two sets of outer shells 24, pass the mounting block 27 through the mounting groove 26, cancel the force applied to the movable rod 29, and the limiting post 292 will spring into the mounting block 27;

[0042] This step makes the overall structure more stable and firm, and extends the service life of the outer shell 24 and the inner shell 21.

[0043] Please refer to Figure 1 、 Figure 2 and Figure 4 As shown in, on the basis of the above-mentioned Embodiment 1, this embodiment further includes a fixing component. The fixing component includes a fixing block 31, a fixing frame 32 and a threaded rod 33;

[0044] Among them, the fixing block 31 is fixed on the lower surfaces of the outer shell 24 and the inner shell 21. There are two sets of fixing blocks 31 in total. The fixing frame 32 is sleeved outside any one of the fixing blocks 31. The lower surface of the fixing frame 32 is fixed to the outer surface of the transmission shaft main body 11. The threaded rod 33 is threadedly connected to the interiors of the fixing block 31 and the fixing frame 32;

[0045] The provided fixed block 31 is used to be installed inside the fixed frame 32, thereby fixing the outer shell 24 and the inner shell 21 outside the transmission shaft main body 11, and the threaded rod 33 is used to connect the fixed block 31 and the fixed frame 32 together;

[0046] A fixing plate 34 is fixed on the outer surface of the threaded rod 33, and a fixing hole 35 is provided inside the fixing plate 34;

[0047] The fixing plate 34 is used to drive the threaded rod 33 to rotate synchronously, and the fixing hole 35 is used for a screwdriver to be inserted into it, so as to facilitate the rotation of the fixing plate 34;

[0048] A limiting tube 36 is sleeved inside the fixed block 31 and the fixed frame 32, a magnet 37 is embedded inside the limiting tube 36, a magnet 37 is embedded inside the fixed block 31, and a guiding hole 38 is provided inside the limiting tube 36;

[0049] The limiting tube 36 is used to fix the threaded rod 33 inside it, the magnet 37 is used to fix the limiting tube 36 inside the fixed block 31 and the fixed frame 32, and the guiding hole 38 facilitates the removal of the limiting tube 36 from the fixed block 31 and the fixed frame 32:

[0050] When it is necessary to fix the outer shell 24 outside the transmission shaft main body 11, insert the fixed block 31 into the fixed frame 32, then insert the threaded rod 33 into the fixed block 31 and the fixed frame 32, put the screwdriver into the fixing hole 35, and continuously rotate the screwdriver to make the fixing plate 34 and the threaded rod 33 in a rotating state, fix the threaded rod 33 inside the fixed block 31 and the fixed frame 32, and then insert the limiting tube 36 into the fixed block 31 and the fixed frame 32 to make the magnets 37 connected together;

[0051] This step can stably fix the outer shell 24 and the inner shell 21 outside the transmission shaft main body 11.

[0052] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0053] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stable agricultural machinery gearbox transmission shaft, characterized in that: include: Transmission shaft body (11); A protection component, the protection component comprising an inner shell (21), a heat dissipation hole (22), a connecting column (23), an outer shell (24) and a connecting plate (25); There are two groups of inner shells (21) in total, the heat dissipation holes (22) are arranged in a circular array inside any group of the inner shells (21), the connecting posts (23) are fixed on the outer surface of the inner shells (21) in a circular array, the outer shells (24) are fixed on the outer surfaces of the connecting posts (23), the connecting plates (25) are fixed on the outer surfaces of the inner shells (21) and the outer shells (24), and there are four groups of connecting plates (25) in total.

2. A stable agricultural machinery gearbox transmission shaft according to claim 1, characterized in that: A mounting block (27) is fixed on the surface of the connecting plate (25) on one side, a mounting groove (26) is provided inside the connecting plate (25) on the other side, and a supporting plate (28) is fixed on the outer surface of the connecting plate (25) on the other side, and the supporting plate (28) is located on the top of the mounting block (27).

3. A stable agricultural machinery gearbox transmission shaft according to claim 2, characterized in that: A movable rod (29) is connected to the inside of the support plate (28), a connection hole (291) is provided inside the top of the movable rod (29), a limiting column (292) is fixed to the lower surface of the movable rod (29), the limiting column (292) is located on the top of the mounting block (27), and a spring (293) is fixed between the limiting column (292) and the inside of the support plate (28).

4. The stable agricultural machinery gearbox transmission shaft according to claim 1, characterized in that: It also includes a fixing assembly, which includes a fixing block (31), a fixing frame (32) and a threaded rod (33); The fixing blocks (31) are fixed on the lower surfaces of the outer shell (24) and the inner shell (21), and two groups of the fixing blocks (31) are provided. The fixing frame (32) is sleeved on the outside of any group of the fixing blocks (31), and the lower surface of the fixing frame (32) is fixed to the outer surface of the transmission shaft body (11). The threaded rod (33) is threadedly connected to the inside of the fixing block (31) and the fixing frame (32).

5. A stable agricultural machinery gearbox transmission shaft according to claim 4, characterized in that: A fixing plate (34) is fixed on the outer surface of the threaded rod (33), and a fixing hole (35) is provided inside the fixing plate (34).

6. A stable agricultural machinery gearbox transmission shaft according to claim 4, characterized in that: The fixing block (31) and the fixing frame (32) are internally sleeved with a limiting tube (36), a magnet (37) is embedded in the limiting tube (36), a magnet (37) is embedded in the fixing block (31), and a guide hole (38) is provided in the limiting tube (36).

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