Detachable rotary cultivator with sealing transmission mechanism

Abstract

A detachable rotary cultivator with a sealing transmission mechanism comprises an engine and a gearbox, a clutch is arranged in the gearbox, the sealing transmission mechanism is arranged between the engine and the gearbox, a detaching part is arranged on the sealing transmission mechanism, the sealing transmission mechanism is connected with the gearbox, and the detaching part is connected with the engine. The sealing transmission mechanism comprises a sealing supporting piece, a first sealing sleeve is arranged in the sealing supporting piece, a first sealing piece is arranged between the sealing supporting piece and the first sealing sleeve, and the first sealing piece is connected with the clutch. The engine and the gearbox can be quickly and simply disassembled by arranging the disassembling piece; the power transmission part of the gearbox is sealed by arranging the sealing supporting piece and the first sealing sleeve, the exterior of a gearbox shell is sealed by arranging the first sealing piece, and the power transmission part of a clutch in the gearbox is sealed through the first sealing sleeve.

Description

Technical Field

[0001] The utility model belongs to the field of agricultural machinery, and particularly relates to a rotary tiller with a detachable sealed transmission mechanism. Background Technique

[0002] After farmers buy a rotary tiller, they generally use it more during the busy farming season, and the rotary tiller is idle at other times. Once the engine is idle, it is prone to aging.

[0003] If the engine on the rotary tiller can be disassembled and used elsewhere, it can not only avoid engine aging but also meet other needs of users. Once a rotary tiller with a detachable engine is put on the market, its market value is very high, such as for pumping water, generating electricity, etc.

[0004] For the existing rotary tiller, the disassembly of the gearbox and the engine is troublesome and requires going to a special repair shop. Since the existing structure realizes the connection between the engine and the gearbox through the simultaneous fixation of internal bolts and external bolts, and the internal bolts are arranged inside the gearbox body, the oil in the gearbox needs to be drained and then the box needs to be broken to remove the engine. If the gearbox leaks oil, it will cause waste of oil or pollution of the soil.

[0005] Therefore, our company has developed "a rotary tiller with a detachable sealed transmission mechanism" that can quickly disassemble the engine and the gearbox without oil leakage. Content of the Utility Model

[0006] In view of the above problems, the utility model designs a rotary tiller with a detachable sealed transmission mechanism, which includes an engine and a gearbox. A clutch is arranged inside the gearbox, and a sealed transmission mechanism is arranged between the engine and the gearbox. A disassembly part is arranged on the sealed transmission mechanism. The sealed transmission mechanism is connected to the gearbox, and the disassembly part is connected to the engine.

[0007] The sealed transmission mechanism includes a sealed support part. A first sealed sleeve is arranged inside the sealed support part. A first sealing part is arranged between the sealed support part and the first sealed sleeve. The first sealing part is connected to the clutch.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a sealed transmission mechanism between the engine and the gearbox, the power of the gearbox and the engine can be transmitted sequentially under sealed conditions. By providing a disassembly part on the sealed transmission mechanism, the engine and the gearbox can be disassembled quickly and simply. After disassembly, the engine can be used for pumping water, generating electricity, etc., avoiding the engine being in an idle state and meeting other usage requirements of users. By providing a sealed support part and a first sealing sleeve, the power transmission part of the gearbox is sealed. The sealed support part and the first sealing sleeve are sealed by a first sealing member, thereby sealing the outside of the gearbox housing. The power transmission part of the clutch in the gearbox is sealed by the first sealing sleeve, which can ensure that the gearbox is sealed both during transmission and after disassembly, sealing the power transmission space in the gearbox, without having to drain the oil in the gearbox, and can avoid oil leakage from the disassembled gearbox.

[0009] Further, one end of the sealed support part is connected to the gearbox, and the other end of the sealed support part is connected to the disassembly part;

[0010] The sealed support part is rotatably connected to the first sealing sleeve. One end of the first sealing sleeve is connected to the output end of the engine, and the other end of the first sealing sleeve is connected to the clutch.

[0011] The beneficial effects of adopting the above further technical solution are as follows: By connecting one end of the sealed support part to the gearbox and the other end of the sealed support part to the disassembly part, a detachable sealed support structure can be formed between the gearbox and the engine, thereby limiting the internal power transmission. By rotatably arranging a first sealing sleeve inside the sealed support part, the output end of the engine can rotate, thereby driving the first sealing sleeve to rotate. The rotation of the first sealing sleeve drives the clutch to rotate, realizing the transmission of the engine power to the clutch inside the gearbox, ensuring the sealing performance during the transmission process, avoiding oil leakage of the clutch in the gearbox, and at the same time making the sealed support part detachably connected to the engine, enabling the gearbox and the engine to be disassembled quickly.

[0012] Further, a first cavity, a second cavity, and a third cavity are arranged inside the first sealing sleeve, and the first cavity, the second cavity, and the third cavity are communicated in sequence.

[0013] The beneficial effects of adopting the above further technical solution are as follows: By arranging a first cavity, a second cavity, and a third cavity inside the first sealing sleeve, and the first cavity, the second cavity, and the third cavity are communicated in sequence, a space for power transmission and sealing is formed inside the first sealing sleeve, realizing the transmission of the engine power to the gearbox, and at the same time sealing the power transmission space of the gearbox, avoiding oil leakage of the gearbox after the engine is disassembled.

[0014] Further, a first seal is sleeved outside the first seal sleeve, and a first transmission mechanism is also sleeved outside the first seal sleeve;

[0015] Preferably, the first seal is a ring.

[0016] The beneficial effect of adopting the above further technical solution is that: by providing a first transmission mechanism outside the first seal sleeve, the first seal sleeve can be rotatably connected to the seal support, so that the power of the engine is transmitted inside the first seal to the gearbox; by providing a first seal outside the first seal sleeve, one side of the transmission mechanism is sealed, ensuring the sealing performance of the gearbox during power transmission.

[0017] Further, a second seal is provided in the second cavity;

[0018] Preferably, the second seal is in a groove shape, and the diameter of the second cavity is larger than that of the first cavity.

[0019] The beneficial effect of adopting the above further technical solution is that: by providing a second seal in the second cavity, the connection between the power of the gearbox and the first seal sleeve is sealed;

[0020] Since the second seal is in a groove shape and the diameter of the second cavity is larger than that of the first cavity, the seal is limited, preventing the seal from running off.

[0021] Further, a second transmission mechanism is provided in the third cavity, and the second transmission mechanism is connected to the input end of the clutch;

[0022] More preferably, the diameter of the third cavity is larger than that of the second cavity.

[0023] The beneficial effect of adopting the above further technical solution is that: by providing a second transmission mechanism in the third cavity, the power at the input end of the gearbox can be transmitted in the third cavity; by the diameter of the third cavity being larger than that of the second cavity to limit the second transmission mechanism, the power of the gearbox is limited, preventing the power from shifting.

[0024] Further, the output shaft of the engine is arranged in the first cavity.

[0025] The beneficial effect of adopting the above further technical solution is that: by arranging the output end of the engine in the first cavity, the power at the output end of the engine can be transmitted in the first cavity, limiting the output end of the engine.

[0026] Further, a second seal sleeve is rotatably arranged inside the seal support. The second seal sleeve is arranged on the side of the first seal sleeve close to the engine. The first seal sleeve and the second seal sleeve are connected, and the second seal sleeve is connected to the output end of the engine;

[0027] Preferably, a fourth cavity is provided inside the second seal sleeve. A power transmission shaft is provided in the fourth cavity and the first cavity. The output end of the engine is provided in the fourth cavity.

[0028] More preferably, a third transmission mechanism is provided outside the second seal sleeve.

[0029] The beneficial effect of adopting the above further technical solution is that: by rotatably arranging the second seal sleeve inside the seal support, the second seal sleeve is driven to rotate by the output shaft of the engine, thereby driving the first seal sleeve to rotate, which can increase the length of power transmission, and the distance between the gearbox and the engine can be set according to the requirements of the rotary tiller for rotary tilling.

[0030] By providing a fourth cavity inside the second seal sleeve, the power is transmitted between the fourth cavity and the first cavity through the power transmission shaft. The output shaft of the engine is provided in the fourth cavity, and the power at the output end of the engine is transmitted to the first cavity inside the fourth cavity, so as to limit the output end of the engine.

[0031] Further, a gearbox opening is provided on one side of the gearbox, and the seal support is provided at the gearbox opening.

[0032] One side of the clutch is provided with a clutch opening, and one end of the first seal is provided inside the clutch opening.

[0033] The beneficial effect of adopting the above further technical solution is that: by providing a gearbox opening on one side of the gearbox housing, the seal support seals the gearbox opening.

[0034] By providing one end of the first seal inside the clutch opening, the first seal seals the clutch opening, ensuring that the power of the clutch can be transmitted in a sealed manner.

[0035] Further, the disassembly part includes a disassembly plate, which is threadedly connected to one side of the output end of the engine. A plurality of mounting holes are provided on the disassembly plate. Bolts are provided in the mounting holes and are threadedly connected to one side of the output end of the engine. A clamping hole is provided on the disassembly plate, and the output end of the engine is provided in the clamping hole.

[0036] The beneficial effect of adopting the above further technical solution is that: by providing a disassembly plate on the disassembly part, and the disassembly plate is threadedly connected to the engine, the output end of the engine passes through the clamping hole and then enters the sealed transmission mechanism, which can realize the quick disassembly and installation of the engine and the gearbox. Description of the Drawings

[0037] Figure 1 It is a schematic structural diagram of a rotary tiller with a detachable sealed transmission mechanism;

[0038] Figure 2Schematic diagram of the structure of a detachable engine and gearbox with a sealed transmission mechanism;

[0039] Figure 3 Schematic diagram of the structure of the sealed transmission mechanism and the disassembling part Figure 1 ;

[0040] Figure 4 Schematic diagram of the structure of the first sealing sleeve Figure 1 ;

[0041] Figure 5 Schematic diagram of the structure of the sealed transmission mechanism and the disassembling part Figure 2 ;

[0042] Markings in the figure: 1. Engine; 2. Gearbox; 21. Clutch; 211. Clutch opening; 22. Gearbox opening; 3. Sealed transmission mechanism; 31. Sealed support; 32. First sealing sleeve; 321. First cavity; 322. Second cavity; 323. Third cavity; 33. First transmission mechanism; 34. First seal; 35. Second seal; 36. Second transmission mechanism; 37. Second sealing sleeve; 371. Fourth cavity; 38. Power transmission shaft; 39. Third transmission mechanism; 4. Disassembling part; 41. Disassembling plate; 42. Clamping hole. Specific embodiments

[0043] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model.

[0044] This embodiment provides Embodiment 1: Please refer to Figures 1-4 , in view of the above problems, the present utility model designs a rotary tiller with a detachable sealed transmission mechanism, including an engine 1 and a gearbox 2. A clutch 21 is arranged inside the gearbox. A sealed transmission mechanism 3 is arranged between the engine 1 and the gearbox 2. A disassembling part 4 is arranged on the sealed transmission mechanism 3. The sealed transmission mechanism 3 is connected to the gearbox 2, and the disassembling part 4 is connected to the engine 1; the sealed transmission mechanism 3 includes a sealed support. A first sealing sleeve 32 is arranged inside the sealed support 31. A first seal 34 is arranged between the sealed support 31 and the first sealing sleeve 32. The first seal is connected to the clutch.

[0045] By arranging a sealed transmission mechanism 3 between the engine 1 and the gearbox 2, the power of the gearbox 2 and the engine 1 can be transmitted sequentially under sealed conditions. By arranging a disassembly part 4 on the sealed transmission mechanism 3, the engine 1 and the gearbox 2 can be disassembled quickly and simply. After disassembly, the engine 1 can be used for pumping water, generating electricity, etc., avoiding the engine 1 being idle and meeting other usage requirements of users. By arranging a sealed support part 31 and a first sealing sleeve 32, the power transmission part of the gearbox 2 is sealed. By using a first sealing part 34 to seal between the sealed support part 31 and the first sealing sleeve 32, the outside of the gearbox 2 housing is sealed. By using the first sealing sleeve 32 to seal the power transmission part of the clutch 21 inside the gearbox 2, it can ensure that the gearbox 2 is sealed whether during transmission or after disassembly, sealing the power transmission space inside the gearbox 2, without having to drain the oil inside the gearbox 2, and can avoid oil leakage from the gearbox 2 after disassembly.

[0046] The sealed transmission mechanism 3 includes a sealed support part 31. One end of the sealed support part 31 is connected to the gearbox 2, and the other end of the sealed support part 31 is connected to the disassembly part 4. The sealed support part 31 is rotatably connected to the first sealing sleeve 32. One end of the first sealing sleeve 32 is connected to the output end of the engine 1, and the other end of the first sealing sleeve 32 is connected to the clutch 21. By connecting one end of the sealed support part 31 to the gearbox 2 and the other end of the sealed support part 31 to the disassembly part 4, a detachable sealed support structure can be formed between the gearbox 2 and the engine 1, thereby limiting the internal power transmission. By rotatably arranging the first sealing sleeve 32 inside the sealed support part 31, the output end of the engine 1 rotates, driving the first sealing sleeve 32 to rotate. The rotation of the first sealing sleeve 32 drives the clutch 21 to rotate, realizing the transmission of the power of the engine 1 to the clutch 21 inside the gearbox 2, ensuring the sealing performance during the transmission process, avoiding oil leakage of the clutch 21 inside the gearbox 2, and at the same time enabling the detachable connection between the sealed support part 31 and the engine 1, allowing the gearbox 2 and the engine 1 to be disassembled quickly.

[0047] The first sealing sleeve 32 is internally provided with a first cavity 321, a second cavity 322, and a third cavity 323, and the first cavity 321, the second cavity 322, and the third cavity 323 are communicated in sequence. By arranging the first cavity 321, the second cavity 322, and the third cavity 323 inside the first sealing sleeve 32 and the first cavity 321, the second cavity 322, and the third cavity 323 being communicated in sequence, a space for power transmission and sealing is formed inside the first sealing sleeve 32, realizing the transmission of the power of the engine 1 to the gearbox 2, and at the same time sealing the power transmission space of the gearbox 2, avoiding oil leakage of the gearbox 2 after the engine 1 is disassembled.

[0048] The first seal 34 is sleeved outside the first sealing sleeve 32, and a first transmission mechanism 33 is also sleeved outside the first sealing sleeve 32; preferably, the first seal 34 is circular; by providing the first transmission mechanism 33 outside the first sealing sleeve 32, the first sealing sleeve 32 can be rotationally connected to the sealing support 31, so that the power of the engine 1 is transmitted inside the first seal 34 to the transmission 2; by providing the first seal 34 outside the first sealing sleeve 32, one side of the transmission mechanism is sealed, ensuring the sealing performance of the transmission 2 during the power transmission process.

[0049] Further, a second seal 35 is provided in the second cavity 322;

[0050] Preferably, the second seal 35 is groove-shaped, and the diameter of the second cavity 322 is larger than the diameter of the first cavity 321; by providing the second seal 35 in the second cavity 322, the connection between the power of the transmission 2 and the first sealing sleeve 32 is sealed; by the second seal 35 being groove-shaped and the diameter of the second cavity 322 being larger than the diameter of the first cavity 321, the seal is limited, preventing the seal from running off.

[0051] A second transmission mechanism 36 is provided in the third cavity 323, and the second transmission mechanism 36 is connected to the input end of the clutch 21; more preferably, the diameter of the third cavity 323 is larger than the diameter of the second cavity 322; by providing the second transmission mechanism 36 in the third cavity 323, the power at the input end of the transmission 2 can be transmitted in the third cavity 323; by the diameter of the third cavity 323 being larger than the diameter of the second cavity 322, the second transmission mechanism 36 is limited, thereby limiting the power of the transmission 2 and preventing the power from shifting.

[0052] The output shaft of the engine 1 is arranged in the first cavity 321; by arranging the output end of the engine 1 in the first cavity 321, the power at the output end of the engine 1 can be transmitted in the first cavity 321, limiting the output end of the engine 1.

[0053] The disassembly part 4 includes a disassembly plate 41, the disassembly plate 41 is threadedly connected to one side of the output end of the engine 1, a number of mounting holes are provided on the disassembly plate 41, bolts are arranged in the mounting holes, the bolts are threadedly connected to one side of the output end of the engine 1, a sealing gasket is arranged on one side of the disassembly plate 41, the bolts penetrate through the sealing gasket and press the sealing gasket between the engine 1 and the disassembly part 4, and a clamping hole 42 is provided on the disassembly plate 41, and the output end of the engine 1 is arranged in the clamping hole 42; by providing the disassembly plate 41 on the disassembly part 4 and the disassembly plate 41 being threadedly connected to the engine 1, so that the output end of the engine 1 passes through the clamping hole 42 and then enters the sealed transmission mechanism 3, the quick disassembly and installation of the engine 1 and the transmission 2 can be realized.

[0054] Embodiment 2: Please refer to Figure 5 , a second sealing sleeve 37 is rotatably arranged inside the sealing support 31. The second sealing sleeve 37 is arranged on the side of the first sealing sleeve 32 close to the engine 1. The first sealing sleeve 32 is connected to the second sealing sleeve 37, and the second sealing sleeve 37 is connected to the output end of the engine 1. Preferably, a fourth cavity 371 is arranged inside the second sealing sleeve 37. A power transmission shaft 38 is arranged in the fourth cavity 371 and the first cavity 321. The output end of the engine 1 is arranged in the fourth cavity 371. More preferably, a third transmission mechanism 39 is arranged outside the second sealing sleeve 37. By rotatably arranging the second sealing sleeve 37 inside the sealing support 31 and driving the second sealing sleeve 37 to rotate through the output shaft of the engine 1, thereby driving the first sealing sleeve 32 to rotate, the length of power transmission can be increased, and the distance between the gearbox 2 and the engine 1 can be set according to the requirements of rotary tilling of the rotary tiller. By arranging the fourth cavity 371 inside the second sealing sleeve 37, the power is transmitted between the fourth cavity 371 and the first cavity 321 through the power transmission shaft 38, and the output shaft of the engine 1 is arranged in the fourth cavity 371, so that the power at the output end of the engine 1 is transmitted into the first cavity 321 in the fourth cavity 371, and the output end of the engine 1 is limited.

[0055] The first transmission mechanism 33, the second transmission mechanism 36, and the third transmission mechanism 39 are ball bearings. Spline grooves are arranged in the first cavity 321 and the fourth cavity 371. The power transmission shaft 38 is a spline shaft, and a spline is arranged on the output shaft of the engine 1.

[0056] The spline of the power transmission shaft 38 fits with the spline grooves in the first cavity 321 and the fourth cavity 371, and the spline on the output shaft of the engine 1 fits with the spline groove in the first cavity 321 or the fourth cavity 371.

[0057] A third sealing member is sleeved outside the second sealing sleeve 37. The third sealing member

[0058] The first sealing member 34 is a ring, and the second sealing member 35 is a groove shape. The first sealing member, the second sealing member 35, and the third sealing member are all rubber sealing members.

[0059] A gearbox opening 22 is arranged on one side of the gearbox 2. The sealing support 31 is arranged at the gearbox opening 22. A clutch opening 211 is arranged on one side of the clutch 21. One end of the first sealing member 34 is arranged in the clutch opening 211. By arranging the gearbox opening 22 on one side of the gearbox, the sealing support 31 seals the gearbox opening 22. By arranging one end of the first sealing member 34 in the clutch opening 211, the first sealing member 34 seals the clutch opening 211, ensuring that the power of the clutch 21 can be sealed and transmitted.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary tiller with a detachable sealed transmission mechanism, comprising an engine (1) and a gearbox (2), wherein a clutch (21) is arranged in the gearbox, and is characterized in that: A sealed transmission mechanism (3) is provided between the engine (1) and the gearbox (2). A disassembly part (4) is provided on the sealed transmission mechanism (3). The sealed transmission mechanism (3) is connected to the gearbox (2), and the disassembly part (4) is connected to the engine (1); The sealed transmission mechanism (3) includes a sealed support member (31). Inside the sealed support member (31), there is a first sealed sleeve (32). Between the sealed support member (31) and the first sealed sleeve (32), there is a first seal (34). The first seal (34) is connected to the clutch (21).

2. The rotary tiller with a detachable sealed transmission mechanism according to claim 1, wherein: One end of the sealed support member (31) is connected to the gearbox (2), and the other end of the sealed support member (31) is connected to the disassembly part (4); The sealed support member (31) is rotatably connected to the first sealed sleeve (32). One end of the first sealed sleeve (32) is connected to the output end of the engine (1), and the other end of the first sealed sleeve (32) is connected to the clutch (21).

3. The rotary tiller with a detachable sealed transmission mechanism according to claim 2, wherein: Inside the first sealed sleeve (32), there are a first cavity (321), a second cavity (322), and a third cavity (323). The first cavity (321), the second cavity (322), and the third cavity (323) are connected in sequence.

4. The rotary tiller with a detachable sealed transmission mechanism according to claim 3, characterized in that: The first seal (34) is sleeved outside the first sealed sleeve (32). Outside the first sealed sleeve (32), there is also a first transmission mechanism (33) sleeved.

5. The rotary tiller with a detachable sealed transmission mechanism according to claim 4, characterized in that: The first seal (34) is a ring.

6. The rotary tiller with a detachable sealed transmission mechanism according to claim 4, characterized in that: A second seal (35) is provided inside the second cavity (322).

7. The rotary tiller with a detachable sealed transmission mechanism according to claim 6, characterized in that: The diameter of the second cavity (322) is larger than the diameter of the first cavity (321).

8. The rotary tiller with a detachable sealed transmission mechanism according to claim 6, wherein: A second transmission mechanism (36) is provided inside the third cavity (323). The second transmission mechanism (36) is connected to the input end of the clutch (21).

9. The rotary tiller with a detachable sealed transmission mechanism according to claim 8, wherein: The diameter of the third cavity (323) is larger than the diameter of the second cavity (322).

10. The rotary tiller with a detachable sealed transmission mechanism according to claim 9, characterized in that: The output shaft of the engine (1) is arranged inside the first cavity (321).

11. The rotary tiller with a detachable sealed transmission mechanism according to claim 7, characterized in that: Inside the sealed support member (31), there is a second sealed sleeve (37) rotatably arranged. The second sealed sleeve (37) is arranged on the side of the first sealed sleeve (32) close to the engine (1). The first sealed sleeve (32) and the second sealed sleeve (37) are connected. The second sealed sleeve (37) is connected to the output shaft of the engine (1).

12. The rotary tiller with a detachable sealed transmission mechanism according to claim 11, characterized in that: Inside the second sealed sleeve (37), there is a fourth cavity (371). Inside the fourth cavity (371) and the first cavity (321), there is a power transmission shaft (38). The output end of the engine (1) is arranged inside the fourth cavity (371).

13. The rotary tiller with a detachable sealed transmission mechanism according to claim 12, characterized in that: Outside the second sealed sleeve (37), there is a third transmission mechanism (39).

14. The rotary tiller with a detachable sealed transmission mechanism according to claim 1, characterized in that: On one side of the gearbox (2), there is a gearbox opening (22). The sealed support member (31) is arranged at the gearbox opening (22); On one side of the clutch (21), there is a clutch opening (211). One end of the first seal (34) is arranged inside the clutch opening (211).

15. The rotary tiller with a detachable sealed transmission mechanism according to claim 1, characterized in that: The disassembly part (4) includes a disassembly plate (41). The disassembly plate (41) is threadedly connected to one side of the output end of the engine (1). A clamping hole (42) is provided on the disassembly plate (41), and the output end of the engine (1) is arranged in the clamping hole (42).

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