Transmission case of four-wheel-drive farming machine

Abstract

The utility model discloses a four-wheel drive farming machine transmission case which comprises a first shell, a second shell is fixed to the right side of the first shell, a gear set is arranged in the second shell, a transmission set is arranged in the first shell, and a lubricating oil spraying and sucking mechanism is arranged in the second shell. The front end of the uppermost rotating rod in the gear set penetrates through the second shell to be slidably connected with a moving cylinder, and the outer side wall of the moving cylinder is rotationally connected with a rotating mechanism. According to the transmission case of the four-wheel-drive farming machine, the rotating mechanism, the clutch and the belt pulley are arranged, and the rotating mechanism is moved upwards, so that the contact surface of the fixed cylinder and the rotating mechanism pushes the rotating mechanism to move forwards, the rotating mechanism jacks the clutch to be closed, the gear set rotates to enable the clutch to rotate, the clutch drives the belt pulley to rotate, and the rotating mechanism is loosened; the rotating mechanism moves downwards, the clutch is separated, the gear set rotates and does not drive the belt pulley to rotate, and therefore rotation of the belt pulley can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission boxes, in particular to a transmission box for a four-wheel-drive agricultural machine. Background Art

[0002] A tractor is a self-propelled power machine used to pull and drive working machinery to complete various mobile operations. It can also be used as a fixed working power. It consists of systems or devices such as engine, transmission, travel, steering, hydraulic suspension, power output, electrical instruments, driving control and traction. The engine power is transmitted to the drive wheel through the transmission system to make the tractor move. In real life, rubber belts are commonly used as the medium for power transmission.

[0003] After searching, the existing patent (publication number: CN219796020U) discloses a tractor transmission box, including a box body and a box cover, a transmission shaft is rotatably connected in the box body, a gear set is installed on the transmission shaft, a plurality of spraying mechanisms are installed on both sides of the inner wall of the box body, an oil storage chamber is provided at the bottom of the box body, lubricating oil is provided in the oil storage chamber, a filter screen is installed in the oil storage chamber, the spraying mechanism includes a suction pipe, a micro liquid pump and a nozzle, the top of the suction pipe is connected to the liquid inlet of the micro liquid pump, the liquid outlet of the micro liquid pump is installed with a nozzle, and the bottom of the suction pipe is located below the filter screen and is immersed in the liquid surface of the lubricating oil. The utility model sprays the oil at the bottom on the top of the transmission assembly through the micro liquid pump to lubricate the transmission assembly above, and the lubrication effect is good; the impurities of the lubricating oil are filtered through the filter screen to prevent the impurities from entering the suction pipe, ensure the cleanliness of the oil, and prevent the spraying mechanism from being blocked.

[0004] The lubricating oil inside the box body is sucked by a micro liquid pump, which requires adding multiple micro liquid pumps in the box body, which consumes energy to drive and is not conducive to energy saving and environmental protection. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a transmission box for a four-wheel drive agricultural machine, which solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a four-wheel drive agricultural machine transmission box, including a first shell, a second shell is fixed on the right side of the first shell, a gear group is provided inside the second shell, a transmission group is provided inside the first shell, a lubricating oil spraying and suction mechanism is provided inside the second shell, the front end of the topmost rotating rod in the gear group passes through the second shell and is slidably connected to a moving cylinder, the outer side wall of the moving cylinder is rotatably connected to a rotating mechanism, the outer side wall of the topmost rotating rod is located in front of the moving cylinder and is rotatably connected to a pulley, a clutch is provided inside the pulley, the inner side wall of the clutch and the outer side wall of the topmost rotating rod are fixedly connected, a fixed cylinder is fixed on the front surface of the second shell, the front end of the rotating mechanism passes through the pulley and contacts with the clutch, a gear steering adjustment mechanism is provided on the right side inside the second shell, and the right side of the gear steering adjustment mechanism passes through the second shell.

[0007] Preferably, the lubricating oil spraying and suctioning mechanism comprises a three-way pipe, and an oil spraying pipe and an oil suction pipe are respectively fixed to the top and the bottom of the three-way pipe.

[0008] Preferably, a piston is slidably connected to the inside of the three-way tube, a fixing ring is fixed on the upper inside of the three-way tube, a first spring is fixed to the top of the fixing ring, a first blocking plate is fixed to the other end of the first spring, and the top of the first blocking plate is in contact with the inner upper surface of the three-way tube.

[0009] Preferably, a second spring is fixed at the lower inner part of the three-way pipe, a second blocking plate is fixed to the other end of the second spring, a blocking ring is provided above the second blocking plate, the outer wall of the blocking ring is fixedly connected to the inner wall of the three-way pipe, and the bottom of the blocking ring is in contact with the top of the second blocking plate.

[0010] Preferably, a plurality of connecting pipes are fixed to the outer side wall of the fuel injection pipe, and a spray head is fixed to one end of the connecting pipe away from the fuel injection pipe.

[0011] Preferably, the lower left rotating rod of the rotating rod located at the top in the gear group passes through the second shell and is fixed with a rotating plate, a round block is fixed on the front surface of the rotating plate, the outer side wall of the round block is rotatably connected with a movable rod, a fixed rod is fixed on the left side of the piston, and the right end of the movable rod is rotatably connected to the left end of the fixed rod.

[0012] Beneficial Effects

[0013] The utility model provides a transmission box for a four-wheel-drive agricultural machine. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The transmission box of the four-wheel drive agricultural machine is provided with a rotating mechanism, a clutch and a pulley, and the rotating mechanism is moved upward, so that the contact surface between the fixed cylinder and the rotating mechanism pushes the rotating mechanism to move forward, the rotating mechanism pushes the clutch to close, the gear set rotates to rotate the clutch, the clutch rotates with the pulley, the rotating mechanism is released, the rotating mechanism moves downward, the clutch is separated, and the gear set rotates without rotating the pulley, so that the rotation of the pulley can be controlled.

[0015] 2. The transmission box of the four-wheel drive agricultural machine is provided with a lubricating oil spraying and sucking mechanism. The gear set rotates with the rotating plate, the rotating plate rotates with the round block, the round block moves with the movable rod, the movable rod pushes and pulls the fixed rod and the piston, and the movement of the piston causes negative pressure and strong pressure to be generated inside the three-way pipe. When negative pressure is generated, the first blocking plate is sucked so that the oil extraction pipe can draw the lubricating oil at the bottom of the second shell, so that the lubricating oil enters the interior of the three-way pipe. When strong pressure is generated, the strong pressure pushes the second blocking plate, so that the lubricating oil inside the three-way pipe enters the oil injection pipe, then enters the connecting pipe, and is then sprayed out from the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the clutch and the rotating mechanism in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the rotating mechanism and the fixed cylinder in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the rotating mechanism and the moving cylinder in the utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the first shell and the second shell in the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the lubricating oil spraying and suction mechanism in the utility model;

[0022] Figure 7 It is a schematic diagram of the cross-sectional structure of the three-way pipe in the utility model.

[0023] In the figure: 1. first housing; 2. pulley; 3. second housing; 4. lubricating oil spraying and suction mechanism; 5. clutch; 6. rotating mechanism; 7. moving cylinder; 8. fixed cylinder; 9. transmission group; 10. gear group; 11. oil injection pipe; 12. three-way pipe; 13. movable rod; 14. oil extraction pipe; 15. rotating plate; 16. round block; 17. fixed rod; 18. gear steering adjustment mechanism; 19. connecting pipe; 20. nozzle; 21. second spring; 22. second blocking plate; 23. blocking ring; 24. fixed ring; 25. first spring; 26. first blocking plate; 27. piston. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-7 The utility model provides a technical solution: a four-wheel drive agricultural machine transmission box, including a first housing 1, a second housing 3 is fixed to the right side of the first housing 1, a gear set 10 is arranged inside the second housing 3, a transmission group 9 is arranged inside the first housing 1, a lubricating oil spraying and sucking mechanism 4 is arranged inside the second housing 3, the front end of the uppermost rotating rod in the gear set 10 passes through the second housing 3 and is slidably connected to a moving cylinder 7, the outer side wall of the moving cylinder 7 is rotatably connected to a rotating mechanism 6, the outer side wall of the uppermost rotating rod is located in front of the moving cylinder 7 and is rotatably connected to a pulley 2, a clutch 5 is arranged inside the pulley 2, the inner side wall of the clutch 5 is fixedly connected to the outer side wall of the uppermost rotating rod, and the second housing 1 is provided with a transmission group 9, and the inner side wall of the clutch 5 is fixedly connected to the outer side wall of the uppermost rotating rod. A fixed cylinder 8 is fixed to the front surface of the body 3, and the front end of the rotating mechanism 6 passes through the pulley 2 and contacts the clutch 5. A gear steering adjustment mechanism 18 is provided on the right side inside the second housing 3. The right side of the gear steering adjustment mechanism 18 passes through the second housing 3, and the rotating mechanism 6 is moved upward, so that the contact surface between the fixed cylinder 8 and the rotating mechanism 6 pushes the rotating mechanism 6 to move forward, and the rotating mechanism 6 pushes the clutch 5 to close, and the gear set 10 rotates to rotate the clutch 5, and the clutch 5 rotates with the pulley 2, and the rotating mechanism 6 is released, and the rotating mechanism 6 moves downward, and the clutch 5 is separated, and the rotation of the gear set 10 will not rotate with the pulley 2, so that the rotation of the pulley 2 can be controlled.

[0026] Preferably, the lubricating oil injection and suction mechanism 4 includes a three-way pipe 12, the top and bottom of the three-way pipe 12 are respectively fixed with an oil injection pipe 11 and an oil extraction pipe 14, the lower left rotating rod of the top rotating rod in the gear set 10 passes through the second housing 3 and is fixed with a rotating plate 15, the front surface of the rotating plate 15 is fixed with a round block 16, the outer side wall of the round block 16 is rotatably connected with the movable rod 13, the left side of the piston 27 is fixed with a fixed rod 17, the right end of the movable rod 13 is rotatably connected with the left end of the fixed rod 17, the interior of the three-way pipe 12 is slidably connected with the piston 27, a fixing ring 24 is fixed on the upper part of the interior of the three-way pipe 12, a first spring 25 is fixed on the top of the fixing ring 24, a first blocking plate 26 is fixed on the other end of the first spring 25, the top of the first blocking plate 26 is in contact with the inner upper surface of the three-way pipe 12, a second spring 21 is fixed on the lower part of the interior of the three-way pipe 12, a second blocking plate 22 is fixed on the other end of the second spring 21, and the second A blocking ring 23 is provided above the blocking plate 22, and the outer wall of the blocking ring 23 is fixedly connected to the inner wall of the three-way pipe 12, and the bottom of the blocking ring 23 is in contact with the top of the second blocking plate 22. A plurality of connecting pipes 19 are fixed to the outer wall of the injection pipe 11, and a nozzle 20 is fixed to the end of the connecting pipe 19 away from the injection pipe 11. The rotation of the gear set 10 drives the rotating plate 15 to rotate, and the rotating plate 15 drives the round block 16 to rotate, and the round block 16 drives the movable rod 13 to move, and the movable rod 13 pushes and pulls the fixed rod 17 and the piston 27. The movement of the piston 27 generates negative pressure and strong pressure inside the three-way pipe 12. When negative pressure is generated, the first blocking plate 26 is sucked so that the oil extraction pipe 14 can draw the lubricating oil at the bottom of the second shell 3, so that the lubricating oil enters the interior of the three-way pipe 12. When strong pressure is generated, the strong pressure pushes the second blocking plate 22, so that the lubricating oil inside the three-way pipe 12 enters the injection pipe 11, then enters the connecting pipe 19, and then is sprayed out from the nozzle 20.

[0027] During operation, the rotating mechanism 6 is moved upward, so that the contact surface between the fixed cylinder 8 and the rotating mechanism 6 pushes the rotating mechanism 6 forward, the rotating mechanism 6 pushes the clutch 5 to close, the gear set 10 rotates to rotate the clutch 5, the clutch 5 rotates with the pulley 2, the rotating mechanism 6 is released, the rotating mechanism 6 moves downward, the clutch 5 is separated, the gear set 10 rotates without rotating the pulley 2, so that the rotation of the pulley 2 can be controlled, and the gear set 10 rotates with the rotating plate 15, and the rotating plate 15 rotates with the round block 16 The round block 16 moves with the movable rod 13, and the movable rod 13 pushes and pulls the fixed rod 17 and the piston 27. The movement of the piston 27 generates negative pressure and strong pressure inside the three-way pipe 12. When negative pressure is generated, the first blocking plate 26 is sucked so that the oil extraction pipe 14 can draw the lubricating oil at the bottom of the second shell 3, allowing the lubricating oil to enter the interior of the three-way pipe 12. When strong pressure is generated, the strong pressure pushes the second blocking plate 22, so that the lubricating oil inside the three-way pipe 12 enters the oil injection pipe 11, then enters the connecting pipe 19, and is finally sprayed out from the nozzle 20.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission case for a four-wheel-drive agricultural machine, comprising a first housing (1), characterized in that: A second housing (3) is fixed on the right side of the first housing (1), a gear group (10) is provided inside the second housing (3), a transmission group (9) is provided inside the first housing (1), a lubricating oil spraying and sucking mechanism (4) is provided inside the second housing (3), a front end of the topmost rotating rod in the gear group (10) passes through the second housing (3) and is slidably connected to a moving cylinder (7), an outer wall of the moving cylinder (7) is rotatably connected to a rotating mechanism (6), an outer wall of the topmost rotating rod is located in front of the moving cylinder (7) and is rotatably connected to a pulley (2), a clutch (5) is provided inside the pulley (2), an inner wall of the clutch (5) and an outer wall of the topmost rotating rod are fixedly connected, a fixed cylinder (8) is fixed on the front surface of the second housing (3), a front end of the rotating mechanism (6) passes through the pulley (2) and contacts the clutch (5), a gear steering adjustment mechanism (18) is provided on the right side inside the second housing (3), and the right side of the gear steering adjustment mechanism (18) passes through the second housing (3).

2. A four-wheel drive agricultural machine transmission box according to claim 1, characterized in that: The lubricating oil spraying and suction mechanism (4) comprises a three-way pipe (12), and an oil spraying pipe (11) and an oil suction pipe (14) are respectively fixed to the top and the bottom of the three-way pipe (12).

3. A four-wheel drive agricultural machine transmission box according to claim 2, characterized in that: The interior of the three-way pipe (12) is slidably connected with a piston (27), a fixing ring (24) is fixed on the interior of the three-way pipe (12), a first spring (25) is fixed on the top of the fixing ring (24), a first blocking plate (26) is fixed on the other end of the first spring (25), and the top of the first blocking plate (26) is in contact with the internal upper surface of the three-way pipe (12).

4. A four-wheel drive agricultural machine transmission box according to claim 3, characterized in that: A second spring (21) is fixed at the lower part of the interior of the three-way pipe (12), a second blocking plate (22) is fixed to the other end of the second spring (21), a blocking ring (23) is provided above the second blocking plate (22), the outer wall of the blocking ring (23) is fixedly connected to the inner wall of the three-way pipe (12), and the bottom of the blocking ring (23) is in contact with the top of the second blocking plate (22).

5. The transmission box for a four-wheel-drive agricultural machine according to claim 4, characterized in that: A plurality of connecting pipes (19) are fixed to the outer side wall of the fuel injection pipe (11), and a spray head (20) is fixed to one end of the connecting pipe (19) away from the fuel injection pipe (11).

6. A transmission box for a four-wheel-drive agricultural machine according to claim 5, characterized in that: The lower left rotating rod of the rotating rod located at the top of the gear group (10) passes through the second housing (3) and is fixed with a rotating plate (15). A round block (16) is fixed to the front surface of the rotating plate (15). The outer wall of the round block (16) is rotatably connected to a movable rod (13). A fixed rod (17) is fixed to the left side of the piston (27). The right end of the movable rod (13) is rotatably connected to the left end of the fixed rod (17).

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