Oil pressure normally-open clutch transmission case for farming machine

Abstract

The utility model discloses an oil pressure normally-open clutch transmission case for a farming machine, which comprises a clutch main body and a cover plate fixedly connected to the surface of the clutch main body, and a lubricating component is fixedly mounted on the outer surface of the cover plate. The two chucks in the clutch start-stop device can be driven to be separated by rotating the poke rod, so that the transmission shaft is in a non-rotating state, after external force is stopped from being applied to the poke rod, the two chucks are meshed and transmitted through the elastic piece in the clutch start-stop device, the quick start-stop action is achieved, and the lubricating assembly is arranged on the surface of the cover plate, so that the clutch start-stop device is convenient to use. When the transmission assembly in the clutch body lacks oil, oil can be automatically supplemented to the transmission assembly, it can be ensured that a gear set in the transmission assembly is always kept in a proper lubricating state in the operation process, friction and abrasion are reduced, when the lubricating assembly is damaged, the lubricating assembly is convenient to replace, and practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an oil pressure normally open clutch transmission box for agricultural machinery. Background Art

[0002] The clutch used in agricultural machinery is a mechanical device used to separate or connect the engine and the transmission system to control the movement and stop of the agricultural machinery. It is usually composed of a clutch pressure plate, a clutch friction plate, a clutch releaser and other components. The clutch pedal or operating lever is used to control the start, shift and stop operations. The clutch plays a role in regulating power transmission in agricultural machinery, allowing the driver to control the operation of the agricultural machinery as needed.

[0003] After searching, the patent number is CN206329709U, and the specific name is a transmission case and clutch installation structure for agricultural machinery, including a transmission case and a clutch, the clutch includes a clutch gear ring and a clutch plate, the clutch gear ring is composed of an upper ring and a lower inner ring that are integrally arranged, two semicircular clutch plates are relatively installed in the upper ring of the clutch gear ring, the clutch gear ring is installed in the groove at the top of the transmission case, a deep groove ball bearing is installed between the transmission case and the clutch gear ring, the inner ring of the deep groove ball bearing is interference fit with the outer wall of the clutch gear ring, and the outer ring of the deep groove ball bearing is interference fit with the inner wall of the groove of the transmission case, so as to support the rotation of the clutch gear ring in the transmission case;

[0004] However, the transmission structure in the oil pressure normally open clutch transmission box for agricultural machinery in the prior art does not have a free oil replenishing structure. The transmission structure in the clutch will generate high temperature during long-term operation and cause carbonization of the lubricating oil, which will increase the friction of the transmission structure, thereby increasing the wear of parts and components and reducing the life of the clutch. The carbonization of the lubricating oil will increase the friction of the transmission structure, increase the wear and fatigue of parts and components, and increase the risk of mechanical failure, which may cause the agricultural machinery to be shut down for maintenance and loss. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a hydraulic normally open clutch transmission box for agricultural machinery, which solves the problem that the transmission structure in the hydraulic normally open clutch transmission box for agricultural machinery in the prior art does not have a free oil replenishing structure. The transmission structure in the clutch will generate high temperature during long-term operation and cause carbonization of the lubricating oil, which increases the friction of the transmission structure, thereby increasing the wear of parts and components and reducing the life of the clutch. The carbonization of the lubricating oil will increase the friction of the transmission structure, increase the wear and fatigue of parts and components, increase the risk of mechanical failure, and may cause the agricultural machinery to be shut down for maintenance and suffer losses.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: A hydraulic normally open clutch transmission box for a farming machine, comprising a clutch body and a cover plate fixedly connected to the surface of the clutch body, wherein a lubrication assembly is fixedly installed on the outer surface of the cover plate;

[0007] The lubrication assembly includes a fixed block fixedly mounted on the outer surface of the cover plate, an oil storage tank is provided inside the fixed block, a sealing block is slidably and sealably connected inside the oil storage tank, a servo motor is fixedly mounted inside the fixed block, a threaded rod is fixedly connected to the output end of the servo motor, a limiting rod is fixedly connected inside the oil storage tank, a first sealing plate is fixedly connected to the surface of the fixed block close to the cover plate, an oil filling groove is provided inside the fixed block, a threaded hole is provided at the center of the surface of the fixed block close to the cover plate, a threaded pipe is threadedly mounted inside the threaded hole, a fixed plate is fixedly connected to one end of the threaded pipe away from the fixed block, oil injection holes are equidistantly provided on the surface of the fixed plate, a temperature sensor is fixedly mounted at the center of the surface of the fixed plate, and a second sealing plate is fixedly connected to the surface of the fixed plate close to the fixed block.

[0008] Preferably, a cover plate is fixedly mounted on the surface of the clutch body, a transmission assembly is installed inside the clutch body and the cover plate, a transmission shaft is rotatably connected inside the clutch body, a clutch starter and stop device is installed on the input end of the transmission shaft, a top seat is fixedly mounted on the top of the clutch body, and a toggle rod is rotatably connected to the outer surface of the clutch body.

[0009] Preferably, the fixing plate is sealed to the inner wall of the cover plate through the second sealing plate, the fixing block is sealed to the outer surface of the cover plate through the first sealing plate, the surface of the cover plate is provided with a socket matching the threaded tube and the outer surface of the threaded tube is inserted into the socket.

[0010] Preferably, the interior of the oil storage tank is filled with lubricating oil through an oil filling groove, and the input end of the oil filling groove extends to the outer surface of the fixing block and is sealed and connected by bolts.

[0011] Preferably, the outer surface of the limiting rod is inserted into the interior of the sealing block, and a sealing ring is fixedly mounted on the outer surface of the sealing block.

[0012] Preferably, the interior of the oil storage tank is connected to the interior of the oil injection hole through a threaded tube and a fixing plate, and the temperature sensor is connected to the servo motor signal through a controller.

[0013] Beneficial Effects

[0014] The utility model provides a hydraulic normally open clutch transmission box for agricultural machinery. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The oil pressure normally open clutch transmission box for the agricultural machine can drive the two chucks inside the clutch starter and stop device to separate by rotating the toggle lever, so that the transmission shaft is in a non-rotating state. After stopping applying external force to the toggle lever, the two chucks are engaged through the elastic part inside the clutch starter and stop device, and the roller shaft is driven to rotate through the transmission shaft and the transmission assembly to achieve rapid start and stop action, and a lubrication assembly is arranged on the surface of the cover plate. When the transmission assembly inside the clutch body is short of oil, it can automatically replenish oil to ensure that the gear group in the transmission assembly always maintains a proper lubrication state during operation, reduces friction and wear, and thus extends the service life of the gear group.

[0016] 2. The hydraulic normally open clutch transmission box for the agricultural machine can facilitate the assembly of the lubrication component and the cover plate by setting a fixed block and a fixed plate separation structure. When the lubrication component is damaged, it is also convenient to replace the lubrication component, thereby enhancing practicality.

[0017] 3. The oil pressure normally open clutch transmission box for the agricultural machine can be connected to the top seat at multiple angles, so that the clutch body can work at different installation positions and angles, so that the agricultural machine can contact the crops more smoothly during operation, reduce the damage to the fruits of economic crops caused by the excessive height of the machine, make the agricultural machine more adaptable to the growth conditions of different crops, improve the working efficiency, and reduce the influence of the fuselage height on open field operations. It can adapt to the needs of different economic crops, increase the scope of application of the agricultural machine, and make it more flexible and changeable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection between the transmission shaft and the clutch starter and stop device in the utility model;

[0021] Figure 4 It is a schematic diagram of the connection between the cover plate and the transmission assembly in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the lubrication component in the utility model;

[0023] Figure 6 It is a schematic diagram of the connection between the clutch body and the top seat after being turned 180 degrees in the utility model.

[0024] In the figure: 1. Clutch body; 2. Cover plate; 3. Transmission assembly; 5. Transmission shaft; 6. Clutch starter and stopper; 7. Top seat; 8. Toggle lever; 9. Lubrication assembly; 91. Fixed block; 92. Oil storage tank; 93. Sealing block; 94. Servo motor; 95. Threaded rod; 96. Limit rod; 97. First sealing plate; 98. Oil filling groove; 99. Threaded hole; 910. Threaded pipe; 911. Fixed plate; 912. Oil injection hole; 913. Second sealing plate; 914. Temperature sensor. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-6 The utility model provides a technical solution: a hydraulic normally open clutch transmission box for a farming machine, comprising a clutch body 1 and a cover plate 2 fixedly connected to the surface of the clutch body 1, and a lubrication component 9 is fixedly installed on the outer surface of the cover plate 2;

[0027] The lubrication assembly 9 includes a fixed block 91 fixedly mounted on the outer surface of the cover plate 2, an oil storage tank 92 is provided inside the fixed block 91, a sealing block 93 is sealingly and slidably connected inside the oil storage tank 92, a sealing ring is fixedly mounted on the outer surface of the sealing block 93, a servo motor 94 is fixedly mounted inside the fixed block 91, a threaded rod 95 is fixedly connected to the output end of the servo motor 94, a limiting rod 96 is fixedly connected inside the oil storage tank 92, and the outer surface of the limiting rod 96 is inserted into the inside of the sealing block 93, a first sealing plate 97 is fixedly connected to the surface of the fixed block 91 close to the cover plate 2, the fixed block 91 is sealingly connected to the outer surface of the cover plate 2 through the first sealing plate 97, an oil filling groove 98 is provided inside the fixed block 91, the interior of the oil storage tank 92 is filled with lubricating oil through the oil filling groove 98, the input end of the oil filling groove 98 extends to the outer surface of the fixed block 91 and is sealed and connected by bolts, a threaded hole 99 is provided at the center of the surface of the fixed block 91 close to the cover plate 2, and the internal thread of the threaded hole 99 is arranged A threaded tube 910 is installed, a socket matching the threaded tube 910 is provided on the surface of the cover plate 2, and the outer surface of the threaded tube 910 is inserted into the socket, and the end of the threaded tube 910 away from the fixed block 91 is fixedly connected to a fixed plate 911, and the surface of the fixed plate 911 is equidistantly provided with oil injection holes 912, and the interior of the oil storage tank 92 is connected to the interior of the oil injection hole 912 through the threaded tube 910 and the fixed plate 911, and a temperature sensor 914 is fixedly installed at the center of the surface of the fixed plate 911, and a second sealing plate 913 is fixedly connected to the surface of the fixed plate 911 close to the fixed block 91, and the fixed plate 911 is sealed and connected to the inner wall of the cover plate 2 through the second sealing plate 913. By arranging a lubrication component 9 on the surface of the cover plate 2, when the transmission component 3 inside the clutch body 1 is short of oil, it can automatically replenish oil, which can ensure that the gear group in the transmission component 3 always maintains a proper lubrication state during operation, reduces friction and wear, and thus extends the service life of the gear group;

[0028] The temperature sensor 914 is connected to the servo motor 94 signal through the controller. When the operation is too long, the temperature of the transmission component 3 will be too high. When the temperature reaches a certain level, the temperature sensor 914 will feed back to the controller and control the servo motor 94 to rotate for a certain period of time.

[0029] A cover plate 2 is fixedly installed on the surface of the clutch body 1, and a transmission assembly 3 is installed inside the clutch body 1 and the cover plate 2. A transmission shaft 5 is rotatably connected inside the clutch body 1, and a clutch starter and stop device 6 is installed on the input end of the transmission shaft 5. A top seat 7 is fixedly installed on the top of the clutch body 1. Since the clutch body 1 and the top seat 7 can be connected at multiple angles, the clutch body 1 can work at different installation positions and angles, so that the agricultural machine can contact the crops more stably during operation, reduce the damage to the fruits of economic crops caused by the excessive height of the machine, make the agricultural machine more easily adapt to the growth conditions of different crops, improve the operation efficiency, and reduce the influence of the height of the machine body on the operation in the open field, so that it can adapt to the needs of different economic crops, increase the scope of application of the agricultural machine, and make it more flexible and changeable;

[0030] The outer surface of the clutch body 1 is rotatably connected to a toggle rod 8. By setting the toggle rod 8, the two chucks inside the clutch starter and stopper 6 can be driven to separate, so that the transmission shaft 5 is in a non-rotating state. After the external force on the toggle rod 8 stops, the two chucks are engaged through the elastic member inside the clutch starter and stopper 6, and the roller shaft is driven to rotate through the transmission shaft 5 and the transmission component 3 to achieve a quick start and stop action, and a lubrication component 9 is set on the surface of the cover plate 2. When the transmission component 3 inside the clutch body 1 is short of oil, it can automatically replenish oil to ensure that the gear group in the transmission component 3 always maintains a proper lubrication state during operation, reduces friction and wear, and thus extends the service life of the gear group.

[0031] When working, the engine drives the transmission shaft 5 and the transmission component 3 to rotate through the clutch starter and stop device 6. At this time, the agricultural machine is in a walking state. The clutch handle is operated externally to rotate the toggle rod 8. Through the connection between the toggle rod 8 and the clutch starter and stop device 6, the two chucks inside the clutch starter and stop device 6 can be driven to separate, so that the transmission shaft 5 is in a non-rotating state. After stopping applying external force to the toggle rod 8, the two chucks are engaged through the elastic part inside the clutch starter and stop device 6, and the roller shaft is driven to rotate through the transmission shaft 5 and the transmission component 3 to achieve a quick start and stop action. When working for too long, the temperature of the transmission component 3 will exceed 300 °C. When the temperature reaches a certain level, the temperature sensor 914 feeds back to the controller and controls the servo motor 94 to rotate for a certain period of time. The servo motor 94 starts to drive the threaded rod 95 to rotate, causing the sealing block 93 to slide toward the fixed plate 911. At this time, the lubricating oil in the oil storage tank 92 enters the fixed plate 911 through the threaded tube 910, and then is sprayed out through the oil spray hole 912 to lubricate the surface of the transmission component 3, which can ensure that the gear set in the transmission component 3 always maintains a proper lubrication state during operation, reduces friction and wear, and thus extends the service life of the gear set.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A hydraulic normally open clutch transmission box for an agricultural machine, comprising a clutch body (1) and a cover plate (2) fixedly connected to the surface of the clutch body (1), Features: A lubrication assembly (9) is fixedly mounted on the outer surface of the cover plate (2); The lubrication assembly (9) comprises a fixed block (91) fixedly mounted on the outer surface of the cover plate (2); an oil storage tank (92) is provided inside the fixed block (91); a sealing block (93) is slidably connected to the inside of the oil storage tank (92); a servo motor (94) is fixedly mounted inside the fixed block (91); a threaded rod (95) is fixedly connected to the output end of the servo motor (94); a limit rod (96) is fixedly connected to the inside of the oil storage tank (92); a first sealing plate (97) is fixedly connected to the surface of the fixed block (91) close to the cover plate (2); An oil injection groove (98) is provided inside, a threaded hole (99) is provided at the center of the surface of the fixing block (91) close to the cover plate (2), a threaded tube (910) is installed in the internal thread of the threaded hole (99), a fixing plate (911) is fixedly connected to one end of the threaded tube (910) away from the fixing block (91), oil injection holes (912) are equidistantly provided on the surface of the fixing plate (911), a temperature sensor (914) is fixedly installed at the center of the surface of the fixing plate (911), and a second sealing plate (913) is fixedly connected to the surface of the fixing plate (911) close to the fixing block (91).

2. A hydraulic normally open clutch transmission box for agricultural machinery according to claim 1, Features: A cover plate (2) is fixedly mounted on the surface of the clutch body (1), a transmission assembly (3) is mounted inside the clutch body (1) and the cover plate (2), a transmission shaft (5) is rotatably connected inside the clutch body (1), a clutch starter (6) is mounted on the input end of the transmission shaft (5), a top seat (7) is fixedly mounted on the top of the clutch body (1), and a toggle rod (8) is rotatably connected to the outer surface of the clutch body (1).

3. A hydraulic normally open clutch transmission box for agricultural machinery according to claim 1, Features: The fixing plate (911) is sealedly connected to the inner wall of the cover plate (2) via a second sealing plate (913); the fixing block (91) is sealedly connected to the outer surface of the cover plate (2) via a first sealing plate (97); a plug hole matching the threaded tube (910) is provided on the surface of the cover plate (2), and the outer surface of the threaded tube (910) is inserted into the plug hole.

4. A hydraulic normally open clutch transmission box for agricultural machinery according to claim 1, Features: The interior of the oil storage tank (92) is filled with lubricating oil via an oil filling tank (98), and an input end of the oil filling tank (98) extends to the outer surface of the fixing block (91) and is sealed and connected via bolts.

5. A hydraulic normally open clutch transmission box for agricultural machinery according to claim 1, Features: The outer surface of the limiting rod (96) is inserted into the interior of the sealing block (93), and a sealing ring is fixedly mounted on the outer surface of the sealing block (93).

6. A hydraulic normally open clutch transmission box for agricultural machinery according to claim 1, Features: The interior of the oil storage tank (92) is connected to the interior of the oil injection hole (912) through a threaded tube (910) and a fixing plate (911), and the temperature sensor (914) is connected to the servo motor (94) through a controller.

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