阅读说明：本技术 一种取力器和取力方法 (Power takeoff and power takeoff method ) 是由 陈珊 唐善政 石永金 周长波 金元山 于 2019-02-18 设计创作，主要内容包括：本申请公开一种取力器和取力方法。取力器设置在车辆变速箱和车辆传动轴之间,包括：传动轮、输入轴、齿圈、输出轴、啮合套、拨叉和动力源,啮合套的位置随拨叉的位置的变化而变化。第一输入信号作用下,动力源的可移动部件推动拨叉运动至第一位置,齿圈通过啮合套与传动轮连接,车辆变速箱动力依次通过输入轴、齿圈、啮合套以及传动轮传递至车辆外部工程取力设备；无输入信号时或在第二输入信号作用下,拔叉处于第二位置,齿圈通过啮合套与输出轴连接,车辆变速箱动力依次通过输入轴、齿圈、啮合套以及输出轴传递至车辆传动轴。取力器构造轻巧,零件少,安装位置便于改装,对车辆现有架构性能无影响,取力难度得到有效降低,取力效率大大提升。(The application discloses a power takeoff and a power takeoff method. The power take-off is arranged between a vehicle gearbox and a vehicle transmission shaft and comprises: the transmission device comprises a transmission wheel, an input shaft, a gear ring, an output shaft, a meshing sleeve, a shifting fork and a power source, wherein the position of the meshing sleeve changes along with the position of the shifting fork. Under the action of a first input signal, a movable part of a power source pushes a shifting fork to move to a first position, a gear ring is connected with a driving wheel through a meshing sleeve, and power of a vehicle gearbox is transmitted to external engineering power taking equipment of a vehicle through an input shaft, the gear ring, the meshing sleeve and the driving wheel in sequence; when no input signal exists or under the action of a second input signal, the shifting fork is located at a second position, the gear ring is connected with the output shaft through the meshing sleeve, and the power of the vehicle gearbox is transmitted to the vehicle transmission shaft through the input shaft, the gear ring, the meshing sleeve and the output shaft in sequence. The power takeoff structure is light and handy, and the part is few, and the mounted position is convenient for the repacking, does not have the influence to the current framework performance of vehicle, and the power takeoff degree of difficulty is effectively reduced, and power takeoff efficiency promotes greatly.)

1. A power take-off disposed between a vehicle transmission and a vehicle driveshaft, said power take-off comprising: the transmission device comprises a transmission wheel, an input shaft, a gear ring, an output shaft, a meshing sleeve, a shifting fork and a power source; the position of the meshing sleeve changes along with the position of the shifting fork;

under the action of a first input signal, a movable part of the power source pushes the shifting fork to move to a first position, and the gear ring is indirectly connected with the driving wheel through the meshing sleeve; the power of the vehicle gearbox is transmitted to engineering power takeoff equipment outside the vehicle through the input shaft, the gear ring, the meshing sleeve and the transmission wheel in sequence;

when no input signal exists or under the action of a second input signal, the shifting fork is located at a second position, and the gear ring is indirectly connected with the output shaft through the meshing sleeve; and the power of the vehicle gearbox is transmitted to the vehicle transmission shaft through the input shaft, the gear ring, the meshing sleeve and the output shaft in sequence.

2. The power take-off of claim 1, further comprising: the working state prompting device is connected with the power source;

when the shifting fork is located at the first position, the power source sends a first output signal to the working state prompting device, and the working state prompting device is used for prompting that the power takeoff is located at a first working state according to the first output signal;

when the shifting fork is located at the second position, the power source sends a second output signal to the working state prompting device, and the working state prompting device is used for prompting that the power takeoff is in a second working state according to the second output signal.

3. The power takeoff of claim 2, wherein said operational condition prompting device is a signal light;

when the signal lamp receives the first output signal, the signal lamp is on; and when the signal lamp receives the second output signal, the signal lamp is turned off.

4. The power take-off of claims 1-3, further comprising: a trigger device connected to the power source;

the triggering device is used for sending the first input signal or the second input signal to the power source.

5. A power take-off as claimed in any one of claims 1 to 3, wherein the drive wheel is a pulley or a gear.

6. The power take-off of claim 5, wherein the ring gear is relatively movable and supported with respect to the pulley or the output shaft, respectively, by rolling bearings and spacers.

7. A power take-off as claimed in any one of claims 1 to 3, wherein the power source is an electric motor and the movable member is a piston.

8. A method of power take-off, characterized by being applied to a power take-off arranged between a vehicle gearbox and a vehicle driveshaft, said power take-off comprising: the transmission device comprises a transmission wheel, an input shaft, a gear ring, an output shaft, a meshing sleeve, a shifting fork and a power source; the position of the meshing sleeve changes along with the position of the shifting fork; the method comprises the following steps:

receiving a first input signal, wherein under the action of the first input signal, a movable part of the power source pushes the shifting fork to move to a first position, and the gear ring is indirectly connected with the driving wheel through the meshing sleeve;

and transmitting the power of the vehicle gearbox to engineering power takeoff equipment outside the vehicle sequentially through the input shaft, the gear ring, the meshing sleeve and the transmission wheel.

9. The method of claim 8, further comprising:

when a second input signal is received or any input signal is not received, the shifting fork is located at a second position, and the gear ring is indirectly connected with the output shaft through the meshing sleeve;

and transmitting the power of the vehicle gearbox to the vehicle transmission shaft sequentially through the input shaft, the gear ring, the meshing sleeve and the output shaft.

10. The method of claim 9, wherein the power take-off further comprises: the working state prompting device, the method also includes:

when the shifting fork is located at the first position, the power source sends a first output signal to the working state prompting device, so that the working state prompting device prompts that the power takeoff is located at a first working state;

when the shifting fork is located at the second position, the power source sends a second output signal to the working state prompting device, so that the working state prompting device prompts that the power takeoff is in a second working state.

Technical Field

The application relates to the technical field of vehicle accessories, in particular to a power takeoff and a power takeoff method.

Background

The power takeoff, also called power takeoff, is mainly used to take and transmit the power of the engine or the transmission to the engineering power takeoff equipment outside the vehicle, such as a lift pump.

At present, most of power takeoff devices of vehicle chassis are arranged at the output end of an engine or the output end of a gearbox to obtain power, which needs to make great changes on the structure of the vehicle engine or the gearbox. The mature vehicle inside overall arrangement of many motorcycle types is compact, and current power takeoff adopts gear drive power takeoff mostly, or adopts the power supply of atmospheric pressure, hydraulic pressure, mechanical type, consequently, if need use current power takeoff, the degree of difficulty that needs reequip the vehicle is all very big with the complexity, hardly realizes the vehicle repacking fast in the short time to increased the power takeoff degree of difficulty and influenced power takeoff efficiency.

Therefore, how to reduce the difficulty of power taking and improve the power taking efficiency becomes a technical problem which needs to be solved urgently in the field.

Disclosure of Invention

Based on the problems, the application provides a power takeoff and a power takeoff method so as to reduce the power takeoff difficulty and improve the power takeoff efficiency.

The embodiment of the application discloses the following technical scheme:

in a first aspect, the present application provides a power take-off arranged between a vehicle gearbox and a vehicle driveshaft, said power take-off comprising: the transmission device comprises a transmission wheel, an input shaft, a gear ring, an output shaft, a meshing sleeve, a shifting fork and a power source; the position of the meshing sleeve changes along with the position of the shifting fork;

under the action of a first input signal, a movable part of the power source pushes the shifting fork to move to a first position, and the gear ring is indirectly connected with the driving wheel through the meshing sleeve; the power of the vehicle gearbox is transmitted to engineering power takeoff equipment outside the vehicle through the input shaft, the gear ring, the meshing sleeve and the transmission wheel in sequence;

when no input signal exists or under the action of a second input signal, the shifting fork is located at a second position, and the gear ring is indirectly connected with the output shaft through the meshing sleeve; and the power of the vehicle gearbox is transmitted to the vehicle transmission shaft through the input shaft, the gear ring, the meshing sleeve and the output shaft in sequence.

Optionally, the power take-off further comprises: the working state prompting device is connected with the power source;

when the shifting fork is located at the first position, the power source sends a first output signal to the working state prompting device, and the working state prompting device is used for prompting that the power takeoff is located at a first working state according to the first output signal;

when the shifting fork is located at the second position, the power source sends a second output signal to the working state prompting device, and the working state prompting device is used for prompting that the power takeoff is in a second working state according to the second output signal.

Optionally, the working state prompting device is a signal lamp;

when the signal lamp receives the first output signal, the signal lamp is on; and when the signal lamp receives the second output signal, the signal lamp is turned off.

Optionally, the power take-off further comprises: a trigger device connected to the power source;

the triggering device is used for sending the first input signal or the second input signal to the power source.

Optionally, the drive wheel is a pulley or a gear.

Optionally, the gear ring and the belt pulley or the output shaft respectively realize relative movement and support through a rolling bearing and a gasket.

Optionally, the power source is an electric motor and the movable member is a piston.

In a second aspect, the present application provides a method of power take-off for use with a power take-off disposed between a vehicle transmission and a vehicle driveshaft, the power take-off comprising: the transmission device comprises a transmission wheel, an input shaft, a gear ring, an output shaft, a meshing sleeve, a shifting fork and a power source; the position of the meshing sleeve changes along with the position of the shifting fork; the method comprises the following steps:

receiving a first input signal, wherein under the action of the first input signal, a movable part of the power source pushes the shifting fork to move to a first position, and the gear ring is indirectly connected with the driving wheel through the meshing sleeve;

and transmitting the power of the vehicle gearbox to engineering power takeoff equipment outside the vehicle sequentially through the input shaft, the gear ring, the meshing sleeve and the transmission wheel.

Optionally, the method further comprises:

when a second input signal is received or any input signal is not received, the shifting fork is located at a second position, and the gear ring is indirectly connected with the output shaft through the meshing sleeve;

and transmitting the power of the vehicle gearbox to the vehicle transmission shaft sequentially through the input shaft, the gear ring, the meshing sleeve and the output shaft.

Optionally, the power take-off further comprises: the working state prompting device, the method also includes:

when the shifting fork is located at the first position, the power source sends a first output signal to the working state prompting device, so that the working state prompting device prompts that the power takeoff is located at a first working state;

when the shifting fork is located at the second position, the power source sends a second output signal to the working state prompting device, so that the working state prompting device prompts that the power takeoff is in a second working state.

Compared with the prior art, the method has the following beneficial effects:

the application provides a power takeoff can set up between vehicle gearbox and vehicle transmission shaft, and the power takeoff includes: the gear comprises a driving wheel, an input shaft, a gear ring, an output shaft, a meshing sleeve, a shifting fork and a power source, wherein the position of the meshing sleeve changes along with the change of the position of the shifting fork; under the action of a first input signal, a movable part of the power source pushes the shifting fork to move to a first position, the gear ring is indirectly connected with the driving wheel through the meshing sleeve, and the power of the vehicle gearbox is transmitted to engineering power taking equipment outside the vehicle through the input shaft, the gear ring, the meshing sleeve and the driving wheel in sequence; when no input signal exists or under the action of a second input signal, the shifting fork is located at a second position, the gear ring is indirectly connected with the output shaft through the meshing sleeve, and the power of the vehicle gearbox is transmitted to the vehicle transmission shaft through the input shaft, the gear ring, the meshing sleeve and the output shaft in sequence.

The power takeoff structure is light and handy, the number of parts is small, the installation position is convenient to modify, the existing framework performance of a vehicle is not affected, the power takeoff difficulty is effectively reduced, and the power takeoff efficiency is greatly improved. In addition, this power takeoff can realize power takeoff mode and driving mode's switching according to the input signal of difference to, it is very convenient to use, improves user's experience.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a cross-sectional view of a power take-off provided in an embodiment of the present application;

FIG. 2 is a cross-sectional view of a power take-off provided by an embodiment of the present application in a second position;

FIG. 3 is a cross-sectional view of a power take-off provided by an embodiment of the present application with the power take-off in a first position;

FIG. 4 is a cross-sectional view of another power take-off provided by an embodiment of the present application;

fig. 5 is a flowchart of a power takeoff method according to an embodiment of the present application;

FIG. 6 is a flow chart of another method for extracting force provided by an embodiment of the present application;

fig. 7 is a flowchart of another force extraction method according to an embodiment of the present disclosure.

Detailed Description

As described above, current power take-offs require significant modification to the vehicle engine or transmission when needed for use. Meanwhile, the complex structure of the power takeoff also increases the modification difficulty. Therefore, the difficulty and the complexity of taking power in the mature motorcycle type of current power takeoff are all higher, influence power takeoff efficiency, are difficult to convenient application.

In view of the above problem, the inventors have studied and provided a power takeoff and a power takeoff method having a novel structure. This power takeoff includes: the transmission wheel, the input shaft, the gear ring, the output shaft, the meshing sleeve, the shifting fork, the power source and the like. Under the action of different input signals, the shifting forks in the power takeoff are respectively moved to different positions, and the meshing sleeve is correspondingly positioned at different positions, so that the meshing sleeve is connected with the gear ring and the transmission wheel or is connected with the gear ring and the output shaft. When the gear ring is indirectly connected with the driving wheel through the meshing sleeve, the power of the vehicle gearbox is transmitted to engineering power taking equipment outside the vehicle through the input shaft, the gear ring, the meshing sleeve and the driving wheel in sequence so as to facilitate engineering power taking; when the gear ring is indirectly connected with the output shaft through the meshing sleeve, the power of the vehicle gearbox is transmitted to a vehicle transmission shaft through the input shaft, the gear ring, the meshing sleeve and the output shaft in sequence so as to drive the vehicle normally. Therefore, the power takeoff can realize the switching between the power takeoff mode and the driving mode according to different input signals, so that the power takeoff is very convenient to use, and the user experience is improved. In addition, this power takeoff structure is light and handy, and the part is few to the mounted position is convenient for the repacking very much, does not have the influence to the current framework performance of vehicle, therefore the power takeoff degree of difficulty is effectively reduced, and power takeoff efficiency promotes greatly.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First embodiment

Referring to fig. 1, a cross-sectional view of a power takeoff provided in an embodiment of the present application is shown.

As shown in fig. 1, the power takeoff provided by the embodiment of the present application includes: the transmission wheel, the input shaft, the gear ring, the output shaft, the meshing sleeve, the shifting fork and the power source.

In this embodiment, the power take-off may be arranged between the vehicle gearbox and the vehicle driveshaft. The input shaft of the power takeoff is used for connecting the output shaft of a vehicle gearbox; the output shaft of the power takeoff is used for connecting a vehicle transmission shaft. The gear ring is assembled with the input shaft. When the power takeoff works normally after the gear ring and the input shaft are assembled, no mutual movement exists between the gear ring and the input shaft.

In this embodiment, the power source is capable of receiving an input signal. The power take-off can specifically realize the switching between the driving mode and the power take-off mode according to the input signal. The driving mode means that when the vehicle normally drives, the power of the vehicle gearbox is transmitted to a vehicle transmission shaft through a power takeoff to realize driving; the power take-off mode refers to that when the vehicle is stopped and engineering power take-off is needed, the power of the vehicle gearbox is transmitted to engineering power take-off equipment outside the vehicle through the power take-off. In this embodiment, an input signal for driving the power takeoff to realize the power takeoff mode is referred to as a first input signal; the input signal for actuating the power take-off to switch from the power take-off mode to the drive mode is referred to as the second input signal.

The power source of the power take-off is configured to include a movable member that is movable when the power source receives either the first input signal or the second input signal. As an example, the power source may be an electric motor, and the movable member may be a piston inside the electric motor, which pushes the fork to advance to the first position when the electric motor obtains the first input signal; when the electric motor obtains the second input signal, the piston in the electric motor does not push the shifting fork any more, and the shifting fork retreats to the second position from the first position. It is understood that in the present embodiment, the power source may be an electric motor, or may be another type of power source, and therefore, the specific type of power source in the power takeoff is not limited.

As a possible realization mode, the movable part of the power source is connected with the shifting fork by a return spring. When the shifting fork is at the second position, the return spring is in a compressed state; after receiving the first input signal, the shifting fork gradually moves to a first position, and the return spring is further compressed; when the shifting fork moves from the first position to the second position when receiving the second input signal or not receiving any signal, the return spring is stretched relative to the former state, but the whole is still in a compressed state.

Fig. 2 and 3 are cross-sectional views of the power take-off with the shift fork of the power take-off in the second and first positions, respectively. In fig. 2 and 3, the arrow indicates the power transmission direction.

Fig. 2 shows the power take-off in the drive mode.

As can be seen from fig. 2, in this embodiment, when the fork of the power takeoff is located at the second position, the fork can block the gear ring, the meshing sleeve and the output shaft, so that the gear ring is indirectly connected with the output shaft through the meshing sleeve, and a power flow direction shown by an arrow in fig. 2 is formed, that is, power of the vehicle transmission case is transmitted to the vehicle transmission shaft sequentially through the input shaft, the gear ring, the meshing sleeve and the output shaft. . At this time, the vehicle is normally running.

Fig. 3 shows the power take-off in the power take-off mode.

As can be seen from fig. 3, when the shift fork of the power takeoff is located at the first position, the engagement sleeve is no longer connected to the output shaft, and the gear ring is indirectly connected to the transmission wheel through the engagement sleeve, so as to form a power flow direction indicated by an arrow in fig. 3, that is, the power of the vehicle transmission passes through the input shaft, the gear ring, the engagement sleeve and the transmission wheel in sequence. Because the driving wheel is connected with the engineering power take-off equipment outside the vehicle, the power is transmitted to the engineering power take-off equipment outside the vehicle. In this embodiment, the driving wheel is connected to an engineering power takeoff device outside the vehicle, for example, after the driving wheel obtains power, the driving wheel drives a pump wheel of the lift pump, so that the lift pump obtains power from a vehicle transmission case. In this embodiment, the transmission wheel may be a pulley or a gear, and the specific implementation form of the transmission wheel is not limited in this embodiment.

The above is the power takeoff provided by the embodiment of the application. The power takeoff structure is light and handy, the parts are few, the installation position is convenient to refit, during use, the input shaft of the power takeoff is only needed to be in butt joint with the output shaft of a vehicle gearbox, the output shaft of the power takeoff is in butt joint with a vehicle transmission shaft, and a transmission wheel of the power takeoff is in butt joint with engineering power takeoff equipment outside a vehicle. The existing framework performance of the vehicle is not affected, so that the power taking difficulty is effectively reduced, and the power taking efficiency is greatly improved. In addition, this power takeoff can realize power takeoff mode and driving mode's switching according to the input signal of difference to, it is very convenient to use, improves user's experience.

With some power take-offs currently available, the driver or technician is agnostic as to the operating state of the power take-off. That is, the driver or the technician cannot know the working state of the power takeoff, so that the power trend of the vehicle gearbox cannot be accurately known, and the control decision of the vehicle is inconvenient. Based on this problem, this application still provides a power takeoff that possesses operating condition feedback function. The power takeoff is described below with reference to the accompanying drawings and embodiments.

Second embodiment

Referring to fig. 4, a cross-sectional view of a power take-off provided by an embodiment of the present application is shown.

As shown in fig. 4, the power takeoff provided by the present embodiment further includes, on the basis of the transmission wheel, the input shaft, the gear ring, the output shaft, the meshing sleeve, the shift fork and the power source that are included in the power takeoff provided by the previous embodiment: and a working state prompting device. The working state prompting device is connected with the power source.

Under the action of a first input signal, a movable part of a power source pushes a shifting fork to move to a first position, a meshing sleeve is connected with a driving wheel and a gear ring through the shifting fork, and power of a vehicle gearbox is transmitted to engineering power takeoff equipment outside a vehicle sequentially through an input shaft, the gear ring, the meshing sleeve and the driving wheel. When the shifting fork is in the first position, the power supply sends first output signal to operating condition suggestion device, and operating condition suggestion device is used for showing the power takeoff and is in first operating condition according to first output signal suggestion. In the embodiment, the first working state means that the power takeoff transmits the power of the vehicle transmission to the engineering power takeoff device, and the power takeoff is in a power takeoff mode.

When no input signal exists or under the action of a second input signal, the movable part of the power source and the shifting fork move back to the second position together, the meshing sleeve is connected with the gear ring and the output shaft through the shifting fork, and the power of the vehicle gearbox is transmitted to the vehicle transmission shaft through the input shaft, the gear ring, the meshing sleeve and the output shaft in sequence. When the shifting fork is in the second position, the power supply sends the second output signal to operating condition suggestion device, and operating condition suggestion device is used for showing the power takeoff and is in the second operating condition according to second output signal suggestion. In the present embodiment, the second operating state refers to the power takeoff transmitting the power of the vehicle transmission to the vehicle propeller shaft, and the power takeoff being in the driving mode.

It should be noted that the operation state prompting device in the present embodiment may be disposed in the vehicle cabin, so that a driver or a technician in the vehicle cabin can know the specific operation state of the power takeoff according to the operation state prompting device.

As a possible implementation manner, the working state prompting device may be a signal lamp. When the signal lamp receives the first output signal, the signal lamp is turned on, and a driver or a technician is prompted to be in a first working state; when the signal lamp receives the second output signal, the signal lamp is turned off, and then a driver or a technician is prompted that the power takeoff is in a second working state.

Of course, the signal lamp may also prompt the driver or the technician about the current working state of the power takeoff, for example, when the signal lamp receives the first output signal, the signal lamp is turned on; and when the signal lamp receives the second output signal, the signal lamp lights red. Or when the signal lamp receives the first output signal, the signal lamp flickers; and when the signal lamp receives the second output signal, the signal lamp is on for a long time.

It is understood that, in this embodiment, the operation state prompting device may also be in other forms besides a signal lamp, such as a buzzer and the like. The working state prompting device respectively works in different forms according to different output signals, so as to prompt a driver or a technician to obtain different working states of the power takeoff. In this embodiment, the specific form of the operating state presenting device is not limited.

Above is the power takeoff that this embodiment provided promptly, in this power takeoff, when the shift fork was in primary importance and second place, the power supply sent different output signal to operating condition suggestion device respectively to make operating condition suggestion device can indicate the operating condition that the power takeoff is located currently according to the different output signal that receive. The power takeoff is convenient for a vehicle driver or a technician to know the working state of the power takeoff in real time, so that a vehicle control decision is facilitated to be executed, and the power takeoff use experience of the driver or the technician is improved.

The power takeoff provided by each of the foregoing embodiments may further include a triggering device. The trigger device is connected with the power source and is specifically used for sending a first input signal or a second input signal to the power source. The triggering device may be provided in the cab so that the driver or a technician can control the operating state of the power take-off in the cab using the triggering device.

In this embodiment, the triggering device may be a handle with a button, or may be in other forms. The specific form of the triggering device is not limited herein. As an example, the triggering device is a handle with a key, when power take-off is needed, a driver or a technician in a cab can press the key for a preset time (for example, five seconds) to trigger sending of a first input signal to the power source; when the power take-off needs to be stopped, the driver or the technician in the cab can press the key for a preset time (for example, five seconds) again to trigger the sending of the second input signal to the power source. It can be understood that when the trigger device is not operated, the power source cannot acquire any input signal, and at the moment, the shifting fork of the power takeoff is in the second position, and the shifting fork realizes the connection of the meshing sleeve with the gear ring and the output shaft. It should be understood that the manner of operating the trigger device to send the first input signal and the second input signal is only an example, and in practical applications, it may also be set that the trigger device is operated in other manners to send the first input signal and the second input signal to the power source.

Alternatively, in the power takeoff described in the foregoing embodiment, if the transmission wheel is embodied as a pulley, the ring gear may be relatively moved and supported with respect to the pulley or the output shaft via a rolling bearing and a spacer, respectively. In order to prolong the service life of the power takeoff, the gasket can be a wear-resistant gasket. The pulley may be provided with bearings and a splined hub. The connecting structure of the input shaft can be a flange or a spline; the connecting structure of the output shaft can also be a flange or a spline. In addition, the input shaft is provided with a clamp spring and used for clamping the input shaft and the gear ring.

Based on the power takeoff provided by the previous embodiment, the application also provides a power takeoff method. The method is illustrated and described below with reference to the examples and the figures.

Third embodiment

Referring to fig. 5, the figure is a flowchart of a power take-off method provided in an embodiment of the present application. The method is applied to the power takeoff provided by the previous embodiment. Namely, the power takeoff device at least comprises: the gear comprises a driving wheel, an input shaft, a gear ring, an output shaft, a meshing sleeve, a shifting fork and a power source, wherein the position of the meshing sleeve changes along with the change of the position of the shifting fork. The power takeoff is arranged between a vehicle gearbox and a vehicle transmission shaft.

As shown in fig. 5, the power takeoff method provided in this embodiment includes:

step 501: and receiving a first input signal, wherein under the action of the first input signal, a movable part of the power source pushes the shifting fork to move to a first position, and the gear ring is indirectly connected with the driving wheel through the meshing sleeve.

Step 502: and transmitting the power of the vehicle gearbox to engineering power takeoff equipment outside the vehicle sequentially through the input shaft, the gear ring, the meshing sleeve and the transmission wheel.

The power takeoff method provided by the embodiment is that in the method, the power takeoff arranged between the vehicle gearbox and the vehicle transmission shaft only needs to receive the first input signal, and the shifting fork of the power takeoff can be pushed to the first position by the movable part of the power source, so that the transmission paths from the input shaft to the gear ring, the meshing sleeve, the shifting fork and the transmission wheel are communicated in sequence, and the power from the vehicle gearbox at one end of the input shaft can be transmitted to the engineering power takeoff equipment at one end of the transmission wheel, so that the engineering power takeoff is realized.

The power takeoff applied in the method has the advantages of light structure, few parts, convenient modification of the installation position and no influence on the performance of the existing framework of the vehicle, so the power takeoff difficulty is effectively reduced, and the power takeoff efficiency is greatly improved. The power takeoff is very convenient to use, and the user experience is improved.

The force taking method provided in the above embodiment may further include the following steps 503 to 504.

Fig. 6 is a flowchart of another force taking method provided in the embodiments of the present application. In FIG. 6, step 503: when a second input signal is received or any input signal is not received, the shifting fork is located at the second position, and the gear ring is indirectly connected with the output shaft through the meshing sleeve.

Step 504: and transmitting the power of the vehicle gearbox to the vehicle transmission shaft sequentially through the input shaft, the gear ring, the meshing sleeve and the output shaft.

Steps 503 to 504 describe the operation of the power take-off in the drive mode (i.e. non-power take-off mode). Steps 503 to 504 may be performed before step 501, or may be performed after step 502. That is, the power takeoff used in the power takeoff method may be switched from the power takeoff mode to the drive mode, or may be switched from the drive mode to the power takeoff mode. In this embodiment, the execution sequence of steps 503 to 504 with respect to steps 501 to 502 is not limited.

It should be noted that, with some power take-offs currently available, the driver or technician is agnostic as to the operating state of the power take-off. That is, the driver or the technician cannot know the working state of the power takeoff, so that the power trend of the vehicle gearbox cannot be accurately known, and the control decision of the vehicle is inconvenient. Based on the problem, the power takeoff device in the embodiment of the application can further comprise a working state prompting device to prompt the working state of the power takeoff device. The force taking method provided by the embodiment of the application can further comprise a step A and a step B.

Fig. 7 is a flowchart of another force taking method provided in the embodiments of the present application. In fig. 7, step a: when the shifting fork is in the first position, the power source sends a first output signal to the working state prompting device, so that the working state prompting device prompts that the power takeoff is in a first working state. And B: when the shifting fork is located at the second position, the power source sends a second output signal to the working state prompting device, so that the working state prompting device prompts that the power takeoff is in a second working state.

In this embodiment, step a may be specifically executed after step 501, or may be executed simultaneously with step 502; step B may be specifically executed after step 503, or may be executed simultaneously with step 504. Since the execution sequence of steps 503 to 504 with respect to steps 501 to 502 is not limited in this embodiment, the relative execution sequence of steps a and B is also not limited.

In the power takeoff method, when the shifting fork is located at the first position and the second position, the power source sends different output signals to the working state prompting device respectively, so that the working state prompting device can prompt the current working state of the power takeoff according to the received different output signals. The method for executing the power takeoff is convenient for a vehicle driver or a technician to know the working state of the power takeoff in real time, so that the vehicle control decision is favorably executed, and the power takeoff using experience of the driver or the technician is improved.

It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus and system embodiments, since they are substantially similar to the method embodiments, they are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts suggested as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.