CN212377266U - Power takeoff - Google Patents
Power takeoff Download PDFInfo
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- CN212377266U CN212377266U CN202020633001.0U CN202020633001U CN212377266U CN 212377266 U CN212377266 U CN 212377266U CN 202020633001 U CN202020633001 U CN 202020633001U CN 212377266 U CN212377266 U CN 212377266U
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Abstract
The utility model discloses a power takeoff, which comprises a box body, an input component, an output component and a lubricating gear, wherein the input component is arranged in the box body and used for power input; the output assembly is arranged in the box body and comprises an output shaft, an output gear, a first clutch and a second clutch, the output gear is arranged on the output shaft and is in transmission connection with the input assembly, the first clutch is sleeved on the output shaft and fixed on the output gear, the second clutch is sleeved on the input end of the output shaft and fixed on the box body, and the first clutch is connected with the second clutch; meanwhile, the power takeoff has an active lubrication function, continuous work of the full-power takeoff can be realized, and the working efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the engine power takeoff device, especially, relate to a power takeoff.
Background
The power of the upper-mounted operation device of environmental sanitation vehicles, engineering vehicles, various modified vehicles and the like is from a main engine, and the power of the upper-mounted operation device is from an auxiliary engine; the power from the main engine needs to install a set of power take-off devices at the positions of the engine, the gearbox, the transfer case and the like, and the power take-off devices of the existing vehicles can not be meshed when the engine works, so that the load of the working device is always loaded on the engine when the engine is started, such as a cement mixer truck, thereby increasing the oil consumption of the engine and increasing the use cost; for working devices using auxiliary engine to take power, such as a washing and sweeping vehicle in a sanitation vehicle, the cost of the vehicle is increased and the oil consumption is increased due to the addition of the auxiliary engine, particularly, the vehicle cannot be sold due to the low emission level of the auxiliary engine, and meanwhile, the lubricating and cooling effects of the conventional power take-off device are poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel power takeoff, which has simple structure and stable operation, can be engaged and separated at any time when rotating at high speed, and can be engaged and separated at any time when a working device needs power; meanwhile, the power takeoff has an active lubrication function, can realize continuous work of a full-power takeoff, and improves the working efficiency so as to solve at least one problem in the prior art.
The utility model discloses a following technical scheme realizes:
a power takeoff comprises a box body, an input assembly, an output assembly and a lubricating gear, wherein the input assembly is mounted in the box body and used for power input; the output assembly is arranged in the box body and comprises an output shaft, an output gear, a first clutch and a second clutch, the output gear is arranged on the output shaft and is in transmission connection with the input assembly, the first clutch is sleeved on the output shaft and fixed on the output gear, the second clutch is sleeved on the input end of the output shaft and fixed on the box body, the first clutch is connected with the second clutch, in a first state, the first clutch rotates on the output shaft along with the output gear, and the second clutch brakes the output shaft to enable the output shaft to be static; in a second state, the first clutch rotates along with the output gear and drives the output shaft to rotate; the lubricating gear is arranged in the box body and meshed with the output gear.
As a further improvement of the technical scheme, the power transmission device further comprises a reserved power take-off assembly, the reserved power take-off assembly is installed in the box body and comprises a reserved output shaft and a reserved power take-off gear, and the reserved power take-off gear is fixed to the reserved output shaft and meshed with the output gear.
As a further improvement of the technical scheme, the lubricating gear pump further comprises a cooling device, wherein the cooling device is connected with a box body of the power takeoff through a first oil pipe and is connected with the lubricating gear pump through a second oil pipe.
As a further improvement of the above technical solution, the input assembly includes a coupler, an input shaft and an input gear, the coupler is fixed to the input end of the input shaft, the input gear is fixed to the input shaft and is in transmission connection with the output gear, and the input shaft and the output shaft are arranged in parallel and are rotatable.
As a further improvement of the above technical solution, the power transmission device further comprises a transmission shaft and a transmission gear fixed on the transmission shaft, wherein the transmission shaft is rotatably arranged in the box body and is parallel to the input shaft and the output shaft, and the transmission gear is engaged with the input gear and the output gear.
As a further improvement of the above technical solution, the clutch further includes a first driving member and a second driving member, the first clutch includes a first housing and a first friction plate, the second clutch includes a second housing and a second friction plate, the first housing is fixed to the output gear, the second housing is fixed to the box, the first friction plate and the second friction plate are connected to the output shaft in a transmission manner and can axially slide, the first friction plate and the second friction plate are connected, the first driving member and the second driving member provide opposite acting forces for the first friction plate and the second friction plate to slide on the output shaft, in a first state, the first friction plate is separated from the first housing, the second friction plate compresses the second housing, in a second state, the first friction plate compresses the first housing, the second friction plate is separated from the second housing.
As a further improvement of the above technical solution, the first friction plate and the second friction plate are in transmission connection with the output shaft through a spline.
As a further improvement of the above technical solution, the first driving member is a spring, the second driving member includes a cylinder, a solenoid valve, a first air tube, a second air tube and a third air tube, one end of the spring abuts against the inner side of the box body, the other end of the spring is connected to the second friction plate, the cylinder is connected to the solenoid valve through the first air tube, one end of the second air tube is communicated with the solenoid valve, the other end of the second air tube is communicated with a cavity formed by the first friction plate and the first housing, one end of the third air tube is communicated with the solenoid valve, the other end of the third air tube is communicated with a cavity formed by the second friction plate and the second housing, in a first state, the solenoid valve is not energized, the first friction plate is separated from the first housing under the driving of the spring, the second friction plate compresses the second housing, in a second state, the electromagnetic valve is electrified, the second air pipe and the third air pipe are ventilated, the first friction plate presses the first shell, and the second friction plate is separated from the second shell.
As a further improvement of the above technical solution, the flywheel type power transmission device further comprises an output flange, an output flywheel and a reserved output flange, wherein the output flange is fixed at the output end of the output shaft, the output flywheel is fixed at the output end of the input shaft, and the reserved output flange is fixed at the output end of the reserved output shaft.
As a further improvement of the above technical solution, the first clutch and the second clutch are wet clutches.
The utility model has the advantages that: the utility model discloses a power takeoff, including box, input module, output module and lubricated gear, the said input module is installed in the said box and used for the power input; the output assembly is arranged in the box body and comprises an output shaft, an output gear, a first clutch and a second clutch, the output gear is arranged on the output shaft and is in transmission connection with the input assembly, the first clutch is sleeved on the output shaft and fixed on the output gear, the second clutch is sleeved on the input end of the output shaft and fixed on the box body, the first clutch is connected with the second clutch, in a first state, the first clutch rotates on the output shaft along with the output gear, and the second clutch brakes the output shaft to enable the output shaft to be static; in a second state, the first clutch rotates along with the output gear and drives the output shaft to rotate; the lubricating gear is arranged in the box body and meshed with the output gear. The power takeoff has a simple structure and stable operation, and can be engaged and disengaged at any time during high-speed rotation, when the working device needs power, the power takeoff is engaged at any time, and when the working device does not need to work, the power takeoff is disengaged at any time, so that the load of an engine is reduced, and the oil consumption is reduced; through setting up lubricated gear for this power takeoff has initiative lubrication function, can realize the continuous operation of full-power takeoff, improves work efficiency.
Drawings
Fig. 1 is a perspective view of a power takeoff provided according to an embodiment of the present invention.
Fig. 2 is a side view of a power takeoff provided in accordance with an embodiment of the present invention.
Fig. 3 is a front view of a power takeoff provided in accordance with an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a power takeoff provided according to a first embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a power takeoff provided according to a second embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a power takeoff according to a third embodiment of the present invention in a non-operating state.
Fig. 7 is a schematic structural diagram of a power takeoff according to a third embodiment of the present invention in an operating state.
Fig. 8 is a schematic structural diagram of a power takeoff provided according to a second or third embodiment of the present invention.
Wherein: the power takeoff device comprises a power takeoff 100, a box body 1, a coupling 2, an input shaft 3, an input gear 4, an output flywheel 5, a transmission gear 6, an output gear 7, an output shaft 8, an output flange 9, a first clutch 10, a second clutch 11, a spring 12, a lubricating gear 13, a reserved power takeoff gear 14, a lubricating gear pump 15, a third air pipe 16, a second air pipe 17, an electromagnetic valve 18, a first air pipe 19, an air cylinder 20, a first oil pipe 21, a second oil pipe 22, a cooling device 23, a thrust bearing 24, a transmission shaft 25 and a reserved output flange 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention.
Next, a power takeoff 100 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 8.
As shown in fig. 1 to 4, a power takeoff 100 according to a first embodiment of the present invention includes a casing 1, an input shaft 3, an output shaft 8, a coupling 2, an input gear 4, an output gear 7, a first clutch 10 and a second clutch 11 installed in the casing 1, wherein the input shaft 3 and the output shaft 8 are disposed in parallel and rotatable, the input shaft 3 and the output shaft 8 can be installed on the casing 1 through a bearing, the coupling 2 is fixed to an input end of the input shaft 3 and coupled to the output shaft 8 of an engine to obtain output power of the engine, the input gear 4 is fixed to the input shaft 3 to drive the input shaft 3 to rotate, the output gear 7 is pivotally sleeved on the output shaft 8 and engaged with the input gear 4, the first clutch 10 is sleeved on the output shaft 8 and fixed to the output gear 7, the second clutch 11 is sleeved on an input end of the output shaft 8 and fixed to the casing 1, the first clutch 10 is connected with the second clutch 11, in the first state, the first clutch 10 rotates on the output shaft 8 along with the output gear 7, the second clutch 11 brakes the output shaft 8 to make the output shaft 8 static, and therefore the output shaft 8 does not have power output; in the second state, the first clutch 10 rotates along with the output gear 7 and drives the output shaft 8 to rotate, the output shaft 8 rotates in the second clutch 11, and the output shaft 8 outputs power. Here, the first state is a state in which the power take-off 100 is operating, and the second state is a state in which the power take-off 100 is not operating.
From this, through setting up the collaborative work between first clutch 10 and second clutch 11 and first clutch 10 and the second clutch 11 for this power takeoff 100 simple structure, the operation is stable, can mesh at any time, the power transmission who separates at any time when high-speed rotation, when equipment needs power, mesh at any time and get power, and when equipment need not work, power takeoff separates at any time, with reduce engine load, reduce the oil consumption.
Further, the power takeoff 100 further comprises a first driving member and a second driving member, the first clutch 10 comprises a first housing and a first friction plate, the second clutch 11 comprises a second housing and a second friction plate, the first housing is fixed on the output gear 7 to rotate with the output gear 7, the second housing is fixed on the box body 1, the first friction plate and the second friction plate are in transmission connection with the output shaft 8 and can axially slide, and the first friction plate is connected with the second friction plate, and the first friction plate and the second friction plate can be rigidly connected, such as a sliding spline sleeved on the output shaft 8, so that the first friction plate and the second friction plate can synchronously move, or other non-fixed connections can be adopted, only the first friction plate and the second friction plate need to synchronously slide on the output shaft 8, and the first driving piece and the second driving piece provide opposite acting forces for the first friction plate and the second friction plate to slide on the output shaft 8. In the first state, the first friction plate is separated from the first shell, so that no interaction force exists between the first friction plate and the first shell, the second friction plate presses the second shell, so that an interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, no driving force drives the output shaft 8 to rotate, and under the action of the friction force between the second friction plate and the second shell, the output shaft 8 is braked, and at this time, the power takeoff 100 does not work; in the second state, the first friction plate presses the first casing tightly, so that an interaction force exists between the first friction plate and the first casing, the second friction plate is separated from the second casing, so that no interaction force exists between the second friction plate and the second casing, therefore, when the first casing rotates on the output shaft 8 along with the output gear 7, the friction force between the first friction plate and the first casing is used as a driving force to drive the output shaft 8 to rotate, and the power takeoff 100 works. Therefore, the power takeoff 100 is simple in structure and stable in operation, can be meshed at any time and separated at any time when rotating at a high speed, and is meshed at any time when a working device needs power, and is separated at any time when the working device does not need to work, so that the load of an engine is reduced, and the oil consumption is reduced.
Further, the first friction plate and the second friction plate are in transmission connection with the output shaft 8 through splines. Therefore, the first friction plate and the second friction plate are conveniently connected with the output shaft 8 in a transmission mode, the structure is simple, the implementation is easy, and the installation and the manufacturing are convenient.
Further, the first driving member is connected to the second friction plate to provide driving force for the second friction plate and the first friction plate to slide towards the output gear 7, and the second driving member is respectively connected to the first friction plate and the second friction plate to provide driving force for the first friction plate and the second friction plate to slide away from the output gear 7. In a first state, under the driving of the first driving part, the first friction plate is separated from the first shell, so that no interaction force exists between the first friction plate and the first shell, the second friction plate presses the second shell, so that an interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, no driving force drives the output shaft 8 to rotate, and under the action of the friction force between the second friction plate and the second shell, the output shaft 8 is braked, and at this moment, the power takeoff 100 does not work; in the second state, under the driving of the second driving element, the first friction plate is pressed against the first casing, so that an interaction force exists between the first friction plate and the first casing, the second friction plate is separated from the second casing, so that no interaction force exists between the second friction plate and the second casing, therefore, when the first casing rotates on the output shaft 8 along with the output gear 7, the friction force between the first friction plate and the first casing serves as a driving force to drive the output shaft 8 to rotate, and the power takeoff 100 works. Therefore, the power takeoff 100 is simple in structure and stable in operation, can be meshed at any time and separated at any time when rotating at a high speed, and is meshed at any time when a working device needs power, and is separated at any time when the working device does not need to work, so that the load of an engine is reduced, and the oil consumption is reduced.
Further, the first driving member is a spring 12, the second driving member includes a cylinder 20, an electromagnetic valve 18, a first air pipe 19, a second air pipe 17 and a third air pipe 16, the electromagnetic valve 18 can be a two-position three-way electromagnetic valve 18, one end of the spring 12 abuts against the inner side of the box body 1, the other end of the spring is connected to the second friction plate through a thrust bearing 24, the cylinder 20 is connected to the electromagnetic valve 18 through the first air pipe 19, one end of the first air pipe 19 is communicated with the electromagnetic valve 18, the other end of the first air pipe is communicated with a cavity formed by the first friction plate and the first shell, one end of the second air pipe 17 is communicated with the electromagnetic valve 18, and the other end of the second air pipe. This makes it possible to more easily control the sliding of the first friction disk and the second friction disk on the output shaft 8. When the switch of the electromagnetic valve 18 is closed, under the action of the elastic force of the spring 12, the first friction plate is separated from the first shell, so that no interaction force exists between the first friction plate and the first shell, the second friction plate presses the second shell, so that an interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, no driving force drives the output shaft 8 to rotate, and under the action of the friction force between the second friction plate and the second shell, the output shaft 8 is braked, and at this moment, the power takeoff 100 does not work; when the switch of the electromagnetic valve 18 is turned on, the second air pipe 17 and the third air pipe 16 are inflated to push the first friction plate and the second friction plate to slide in the direction away from the output gear 7 against the elastic force of the spring 12, the first friction plate presses the first shell, so that an interaction force exists between the first friction plate and the first shell, the second friction plate is separated from the second shell, so that no interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, the friction force between the first friction plate and the first shell serves as a driving force to drive the output shaft 8 to rotate, and the power takeoff 100 works.
Further, the transmission device also comprises a transmission shaft 25 and a transmission gear 6 fixed on the transmission shaft 25, wherein the transmission shaft 25 is rotatably arranged in the box body 1 and is arranged in parallel with the input shaft 3 and the output shaft 8, and the transmission gear 6 is meshed with the input gear 4 and the output gear 7. The transmission ratio of the transmission gear 6 can be designed according to actual requirements. The transmission gear 6 can realize speed change and increase torque, and prevents the output speed of the engine from being too high and the output torque from being too low, which is not suitable for actual conditions.
Further, the output flange 9 is further included, and the output flange 9 is fixed on the output end of the output shaft 8. The output flange 9 can facilitate the connection of the output shaft 8 and the external device, and is convenient for the quick assembly and disassembly of the external device.
Further, the device also comprises an output flywheel 5, and the output flywheel 5 is fixed at the output end of the input shaft 3. The output flywheel 5 can facilitate direct output of the main power.
Further, the first clutch 10 and the second clutch 11 are wet clutches. The wet clutch has long service life and stable power transmission, can reduce the fault of the power takeoff 100 and improve the reliability of the power takeoff 100.
As shown in fig. 1 to 3, 5 and 8, a power takeoff 100 according to a second embodiment of the present invention includes a casing 1, an input assembly, an output assembly, a reserved power takeoff assembly and a lubricating gear 13, wherein the input assembly is installed in the casing 1 for power input, and the input assembly can be directly coupled to an output shaft 8 of an engine to transmit power of the engine; the output assembly is arranged in the box body 1 and comprises an output shaft 8 and an output gear 7, the output gear 7 is arranged on the output shaft 8 and is in transmission connection with the input assembly so as to transmit power transmitted by the input assembly, and the output shaft 8 can be arranged on the box body 1 through a bearing and rotates on the box body 1; the reserved power take-off assembly is arranged in the box body 1 and comprises a reserved output shaft (not shown in the figure) and a reserved power take-off gear 14, and the reserved power take-off gear 14 is fixed on the reserved output shaft (not shown in the figure) and is meshed with the output gear 7; the lubricating gear 13 is installed in the case 1 and meshed with the output gear 7.
Therefore, the power takeoff device 100 can achieve multi-end power takeoff by arranging the reserved power takeoff assembly, the power takeoff device 100 has an active lubricating function by arranging the lubricating gear 13, continuous work of the full-power takeoff device 100 can be achieved, and work efficiency is improved.
Further, the lubricating gear pump further comprises a cooling device 23, and the cooling device 23 is connected with the lubricating gear pump 15 through a second oil pipe 22; is connected with the upper end of the power takeoff box body through a first oil pipe. The lubricating gear pump 15 is driven by the lubricating gear 13, lubricating oil is conveyed to the cooling device 23 through the fourth oil pipe, the lubricating oil filter and the third oil pipe, the lubricating oil in the cooling device 23 flows into the power takeoff 100 through the first oil pipe 21 after being cooled, so that the cooling of the power takeoff 100 is realized, and the continuous work of the power takeoff 100 is ensured.
Further, the input assembly comprises a coupler 2, an input shaft 3 and an input gear 4, the coupler 2 is fixed at the input end of the input shaft 3 and is used for being connected with an output shaft 8 of the engine to obtain output power of the engine, the input gear 4 is fixed on the input shaft 3 and is in transmission connection with an output gear 7, and the input shaft 3 and the output shaft 8 are arranged in parallel and can rotate. This enables the power take-off 100 to take off power from the engine output shaft 8.
Further, the transmission device also comprises a transmission shaft 25 and a transmission gear 6 fixed on the transmission shaft 25, wherein the transmission shaft 25 is rotatably arranged in the box body 1 and is parallel to the input shaft 3 and the output shaft 8, and the transmission gear 6 is meshed with the input gear 4 and the output gear 7. The transmission gear 6 can realize speed change and increase torque, and prevents the output speed of the engine from being too high and the output torque from being too low, which is not suitable for actual conditions.
Further, the input shaft 3, the output shaft 8 and the transmission shaft 25 are all mounted to the case 1 through bearings. The bearings can reduce the friction between the input shaft 3, the output shaft 8 and the transmission shaft 25 and the case 1, so that the power takeoff 100 is more energy-saving.
Further, the output flange 9 is further included, and the output flange 9 is fixed on the output end of the output shaft 8. The output flange 9 can be convenient for the hookup of output shaft 8 and power takeoff, the quick assembly disassembly of the external power consumption ware of being convenient for.
Further, the device also comprises an output flywheel 5, and the output flywheel 5 is fixed at the output end of the input shaft 3. The output flywheel 5 can facilitate direct output of the main power.
Further, a reserved output flange 26 is further included, and the reserved output flange 26 is fixed to an output end of a reserved output shaft (not shown in the figure). The reserved output flange 26 can facilitate the connection between a reserved output shaft (not shown in the figure) and an external device, and can also facilitate the quick assembly and disassembly of the external device.
As shown in fig. 1 to 3 and 6 to 8, a power takeoff 100 according to a third embodiment of the present invention includes a casing 1, an input assembly, an output assembly and a lubricating gear 13, wherein the input assembly is installed in the casing 1 for power input, and the input assembly can be directly coupled to an output shaft 8 of an engine to transmit power of the engine; the output assembly is arranged in the box body 1 and comprises an output shaft 8, an output gear 7, a first clutch 10 and a second clutch 11, the output gear 7 is arranged in the output shaft 8 and is in transmission connection with the input assembly so as to transmit power transmitted by the input assembly, the first clutch 10 is sleeved on the output shaft 8 and is fixed on the output gear 7, the second clutch 11 is sleeved on the input end of the output shaft 8 and is fixed on the box body 1, the first clutch 10 is connected with the second clutch 11, in a first state, the first clutch 10 rotates on the output shaft 8 along with the output gear 7, the second clutch 11 brakes the output shaft 8 to enable the output shaft 8 to be static, and therefore the output shaft 8 does not have power to output; in a second state, the first clutch 10 rotates along with the output gear 7 and drives the output shaft 8 to rotate, the output shaft 8 rotates in the second clutch 11, and the output shaft 8 outputs power; the lubricating gear 13 is installed in the case 1 and meshed with the output gear 7. Here, the first state is a state in which the power take-off 100 is operating, and the second state is a state in which the power take-off 100 is not operating.
From this, through setting up the collaborative work between first clutch 10 and second clutch 11 and first clutch 10 and the second clutch 11 for this power takeoff 100 simple structure, the operation is stable, can mesh at any time, the power transmission who separates at any time when high-speed rotation, when equipment needs power, mesh at any time and get power, and when equipment need not work, power takeoff separates at any time, with reduce engine load, reduce the oil consumption. By arranging the lubricating gear 13, the power takeoff 100 has an active lubricating function, continuous work of the full-power takeoff 100 can be realized, and the work efficiency is improved.
Further, still include and reserve power take-off subassembly, reserve power take-off subassembly and install in box 1 and including reserving output shaft (not shown in the figure) and reserving power take-off gear 14, reserve power take-off gear 14 and be fixed in reserving output shaft (not shown in the figure) and mesh in output gear 7. Through the arrangement of the reserved power take-off assembly, the power take-off device 100 can realize multi-end power take-off.
Further, the lubricating gear pump further comprises a cooling device 23, and the cooling device 23 is connected with the lubricating gear pump 15 through a second oil pipe 22; is connected with the upper end of the power takeoff box body through a first oil pipe. The lubricating gear pump 15 is driven by the lubricating gear 13, lubricating oil is conveyed to the cooling device 23 through the fourth oil pipe, the lubricating oil filter and the third oil pipe, the lubricating oil in the cooling device 23 flows into the power takeoff 100 through the first oil pipe 21 after being cooled, so that the cooling of the power takeoff 100 is realized, and the continuous work of the power takeoff 100 is ensured.
Further, the input assembly comprises a coupler 2, an input shaft 3 and an input gear 4, the coupler 2 is fixed at the input end of the input shaft 3, the input gear 4 is fixed on the input shaft 3 and is in transmission connection with an output gear 7, and the input shaft 3 and the output shaft 8 are arranged in parallel and can rotate. This enables the power take-off 100 to take off power from the engine output shaft 8.
Further, the transmission device also comprises a transmission shaft 25 and a transmission gear 6 fixed on the transmission shaft 25, wherein the transmission shaft 25 is rotatably arranged in the box body 1 and is parallel to the input shaft 3 and the output shaft 8, and the transmission gear 6 is meshed with the input gear 4 and the output gear 7. The transmission gear 6 can realize speed change and increase torque, and prevents the output speed of the engine from being too high and the output torque from being too low, which is not suitable for actual conditions.
Further, the power takeoff 100 further comprises a first driving member and a second driving member, the first clutch 10 comprises a first housing and a first friction plate, the second clutch 11 comprises a second housing and a second friction plate, the first housing is fixed on the output gear 7 to rotate with the output gear 7, the second housing is fixed on the box body 1, the first friction plate and the second friction plate are in transmission connection with the output shaft 8 and can axially slide, and the first friction plate is connected with the second friction plate, and the first friction plate and the second friction plate can be rigidly connected, such as a sliding spline sleeved on the output shaft 8, so that the first friction plate and the second friction plate can synchronously move, or other non-fixed connections can be adopted, only the first friction plate and the second friction plate need to synchronously slide on the output shaft 8, and the first driving piece and the second driving piece provide opposite acting forces for the first friction plate and the second friction plate to slide on the output shaft 8. In the first state, the first friction plate is separated from the first shell, so that no interaction force exists between the first friction plate and the first shell, the second friction plate presses the second shell, so that an interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, no driving force drives the output shaft 8 to rotate, and under the action of the friction force between the second friction plate and the second shell, the output shaft 8 is braked, and at this time, the power takeoff 100 does not work; in the second state, the first friction plate presses the first casing tightly, so that an interaction force exists between the first friction plate and the first casing, the second friction plate is separated from the second casing, so that no interaction force exists between the second friction plate and the second casing, therefore, when the first casing rotates on the output shaft 8 along with the output gear 7, the friction force between the first friction plate and the first casing is used as a driving force to drive the output shaft 8 to rotate, and the power takeoff 100 works. Therefore, the power takeoff 100 is simple in structure and stable in operation, can be meshed at any time and separated at any time when rotating at a high speed, and is meshed at any time when a working device needs power, and is separated at any time when the working device does not need to work, so that the load of an engine is reduced, and the oil consumption is reduced.
The first friction plate and the second friction plate are in transmission connection with the output shaft 8 through splines. Therefore, the first friction plate and the second friction plate are conveniently connected with the output shaft 8 in a transmission mode, the structure is simple, the implementation is easy, and the installation and the manufacturing are convenient.
Further, the first driving member is connected to the second friction plate to provide driving force for the second friction plate and the first friction plate to slide towards the output gear 7, and the second driving member is respectively connected to the first friction plate and the second friction plate to provide driving force for the first friction plate and the second friction plate to slide away from the output gear 7. In a first state, under the driving of the first driving part, the first friction plate is separated from the first shell, so that no interaction force exists between the first friction plate and the first shell, the second friction plate presses the second shell, so that an interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, no driving force drives the output shaft 8 to rotate, and under the action of the friction force between the second friction plate and the second shell, the output shaft 8 is braked, and at this moment, the power takeoff 100 does not work; in the second state, under the driving of the second driving element, the first friction plate is pressed against the first casing, so that an interaction force exists between the first friction plate and the first casing, the second friction plate is separated from the second casing, so that no interaction force exists between the second friction plate and the second casing, therefore, when the first casing rotates on the output shaft 8 along with the output gear 7, the friction force between the first friction plate and the first casing serves as a driving force to drive the output shaft 8 to rotate, and the power takeoff 100 works. Therefore, the power takeoff 100 is simple in structure and stable in operation, can be meshed at any time and separated at any time when rotating at a high speed, and is meshed at any time when a working device needs power, and is separated at any time when the working device does not need to work, so that the load of an engine is reduced, and the oil consumption is reduced.
Further, the first driving member is a spring 12, and the second driving member includes a cylinder 20, a solenoid valve 18, a first air pipe 19,
A second air pipe 17 and a third air pipe 16, the electromagnetic valve 18 can be a two-position three-way electromagnetic valve 18, one end of the spring 12 is abutted against the inner side of the box body 1, the other end is connected with a second friction plate through a thrust bearing 24, the air cylinder 20 and the electromagnetic valve 18 are connected through a first air pipe 19, one end of the first air pipe 19 is communicated with the electromagnetic valve 18, the other end is communicated with a cavity formed by the first friction plate and the first shell, one end of the second air pipe 17 is communicated with the electromagnetic valve 18, and the other end is communicated with a cavity formed by the second friction plate and the second shell. This makes it possible to more easily control the sliding of the first friction disk and the second friction disk on the output shaft 8. When the switch of the electromagnetic valve 18 is closed, under the action of the elastic force of the spring 12, the first friction plate is separated from the first shell, so that no interaction force exists between the first friction plate and the first shell, the second friction plate presses the second shell, so that an interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, no driving force drives the output shaft 8 to rotate, and under the action of the friction force between the second friction plate and the second shell, the output shaft 8 is braked, and at this moment, the power takeoff 100 does not work; when the switch of the electromagnetic valve 18 is turned on, the second air pipe 17 and the third air pipe 16 are inflated to push the first friction plate and the second friction plate to slide in the direction away from the output gear 7 against the elastic force of the spring 12, the first friction plate presses the first shell, so that an interaction force exists between the first friction plate and the first shell, the second friction plate is separated from the second shell, so that no interaction force exists between the second friction plate and the second shell, therefore, when the first shell rotates on the output shaft 8 along with the output gear 7, the friction force between the first friction plate and the first shell serves as a driving force to drive the output shaft 8 to rotate, and the power takeoff 100 works.
Further, the output flange 9 is further included, and the output flange 9 is fixed on the output end of the output shaft 8. The output flange 9 can be convenient for the hookup of output shaft 8 and power takeoff, the quick assembly disassembly of the external power consumption ware of being convenient for.
Further, the device also comprises an output flywheel 5, and the output flywheel 5 is fixed at the output end of the input shaft 3. The output flywheel 5 may facilitate direct output of power.
Further, a reserved output flange 26 is further included, and the reserved output flange 26 is fixed to an output end of a reserved output shaft (not shown in the figure). The reserved output flange 26 can facilitate the connection between a reserved output shaft (not shown in the figure) and an external power takeoff device, and facilitates the quick assembly and disassembly of the external power utilization device.
The first clutch 10 and the second clutch 11 are wet clutches. The wet clutch has long service life and stable power transmission, can reduce the fault of the power takeoff 100 and improve the reliability of the power takeoff 100.
In the description of the present invention, the terms "first", "second", "further" and "further" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying a number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A power takeoff, comprising:
a box body;
the input assembly is arranged in the box body and used for power input;
the output assembly is arranged in the box body and comprises an output shaft, an output gear, a first clutch and a second clutch, the output gear is arranged on the output shaft and is in transmission connection with the input assembly, the first clutch is sleeved on the output shaft and fixed on the output gear, the second clutch is sleeved on the input end of the output shaft and fixed on the box body, the first clutch and the second clutch are connected, in a first state, the first clutch rotates on the output shaft along with the output gear, and the second clutch brakes the output shaft to enable the output shaft to be static; in a second state, the first clutch rotates along with the output gear and drives the output shaft to rotate;
and the lubricating gear is arranged in the box body and is meshed with the output gear.
2. The power takeoff of claim 1, further comprising a reserved power takeoff assembly, wherein the reserved power takeoff assembly is installed in the box body and comprises a reserved output shaft and a reserved power takeoff gear, and the reserved power takeoff gear is fixed to the reserved output shaft and meshed with the output gear.
3. The power takeoff of claim 1, further comprising a cooling device connected to the case of the power takeoff by a first oil line and to the lubricated gear pump by a second oil line.
4. The power takeoff of claim 1, wherein said input assembly includes a coupling, an input shaft and an input gear, said coupling being secured to an input end of said input shaft, said input gear being secured to said input shaft in driving connection with said output gear, said input shaft and said output shaft being disposed in parallel and rotatable relation.
5. The power takeoff of claim 4, further comprising a drive shaft rotatably disposed within said housing and disposed parallel to said input and output shafts, and a drive gear secured to said drive shaft, said drive gear being engaged with said input and output gears.
6. The power takeoff of claim 1, further comprising a first drive member and a second drive member, said first clutch including a first housing and a first friction plate, said second clutch including a second housing and a second friction plate, said first housing being fixed to said output gear, said second housing being fixed to said casing, said first and second friction plates being drivingly connected to said output shaft and axially slidable, and said first and second friction plates being connected, said first and second drive members providing opposing forces for said first and second friction plates to slide on said output shaft, said first and second friction plates being disengaged from said first housing in a first condition, said second friction plate being compressed against said second housing in a second condition, said first friction plate being compressed against said first housing in a second condition, the second friction plate is separated from the second housing.
7. The power takeoff of claim 6, wherein said first and second friction plates are in splined driving connection with said output shaft.
8. The power takeoff device as claimed in claim 7, wherein the first driving member is a spring, the second driving member includes a cylinder, a solenoid valve, a first air pipe, a second air pipe and a third air pipe, one end of the spring abuts against the inner side of the casing, the other end of the spring is connected to the second friction plate, the cylinder and the solenoid valve are connected through the first air pipe, one end of the second air pipe is communicated with the solenoid valve, the other end of the second air pipe is communicated with a cavity formed by the first friction plate and the first casing, one end of the third air pipe is communicated with the solenoid valve, the other end of the third air pipe is communicated with a cavity formed by the second friction plate and the second casing, in a first state, the solenoid valve is not energized, the first friction plate is separated from the first casing under the driving of the spring, and the second friction plate presses the second casing, in a second state, the electromagnetic valve is electrified, the second air pipe and the third air pipe are ventilated, the first friction plate presses the first shell, and the second friction plate is separated from the second shell.
9. The power takeoff of claim 5, further comprising an output flange secured to the output end of said output shaft, an output flywheel secured to the output end of said input shaft, and a reserved output flange secured to the output end of said reserved output shaft.
10. The power take-off of claim 1 or 6, wherein the first clutch and the second clutch are wet clutches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020633001.0U CN212377266U (en) | 2020-04-24 | 2020-04-24 | Power takeoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020633001.0U CN212377266U (en) | 2020-04-24 | 2020-04-24 | Power takeoff |
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| Publication Number | Publication Date |
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| CN212377266U true CN212377266U (en) | 2021-01-19 |
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| CN202020633001.0U Active CN212377266U (en) | 2020-04-24 | 2020-04-24 | Power takeoff |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833812A (en) * | 2021-10-11 | 2021-12-24 | 铁建重工新疆有限公司 | Transfer case, transmission device and cotton picker |
| WO2023231874A1 (en) * | 2022-06-01 | 2023-12-07 | 安徽阿莫斯流体技术有限公司 | Electromagnetic engagement and disengagement power take-off (pto) |
-
2020
- 2020-04-24 CN CN202020633001.0U patent/CN212377266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833812A (en) * | 2021-10-11 | 2021-12-24 | 铁建重工新疆有限公司 | Transfer case, transmission device and cotton picker |
| WO2023231874A1 (en) * | 2022-06-01 | 2023-12-07 | 安徽阿莫斯流体技术有限公司 | Electromagnetic engagement and disengagement power take-off (pto) |
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