阅读说明：本技术 传动装置和变速器 (Transmission device and speed changer ) 是由 赵德华 程大海 崔保平 于 2019-11-21 设计创作，主要内容包括：本发明涉及一种传动装置和变速器,其中传动装置包括基体、转动体、第一传动机构、第二传动机构和中间传动机构,转动体能够相对于基体转动,第一传动机构可选择地与基体连接或断开连接,第二传动机构的部分可选择地与基体连接或断开连接,中间传动机构设置在第一传动机构和第二传动机构之间；在第一传动机构与基体连接且第二传动机构的部分与基体断开连接时在第一传动机构和中间传动机构的限制作用下转动体获得的动力通过第二传动机构输出,并在第一传动机构与基体断开连接且第二传动机构的部分与基体连接时转动体获得的动力通过第二传动机构传递至第一传动机构和中间传动机构并通过第一传动机构和中间传动机构输出。(The invention relates to a transmission device and a speed changer, wherein the transmission device comprises a base body, a rotating body, a first transmission mechanism, a second transmission mechanism and an intermediate transmission mechanism, the rotating body can rotate relative to the base body, the first transmission mechanism can be selectively connected with or disconnected from the base body, part of the second transmission mechanism can be selectively connected with or disconnected from the base body, and the intermediate transmission mechanism is arranged between the first transmission mechanism and the second transmission mechanism; when the first transmission mechanism is connected with the base body and part of the second transmission mechanism is disconnected with the base body, the power obtained by the rotating body under the limiting action of the first transmission mechanism and the intermediate transmission mechanism is output through the second transmission mechanism, and when the first transmission mechanism is disconnected with the base body and part of the second transmission mechanism is connected with the base body, the power obtained by the rotating body is transmitted to the first transmission mechanism and the intermediate transmission mechanism through the second transmission mechanism and is output through the first transmission mechanism and the intermediate transmission mechanism.)

1. A transmission, comprising:

a base (10);

a rotating body (20) which can rotate relative to the base body (10);

a first transmission mechanism which can be selectively connected with or disconnected from the base body (10);

a second transmission mechanism, part of which can be selectively connected or disconnected with the base body (10); and

an intermediate transmission mechanism (60) disposed between the first transmission mechanism and the second transmission mechanism;

wherein the first transmission mechanism, the second transmission mechanism and the intermediate transmission mechanism (60) are configured to: first drive mechanism with base member (10) are connected just the part of second drive mechanism with when base member (10) disconnection first drive mechanism with under the limiting action of intermediate drive mechanism (60) the power that rotor (20) obtained passes through the output of second drive mechanism, and first drive mechanism with base member (10) disconnection just the part of second drive mechanism with when base member (10) is connected the power that rotor (20) obtained passes through the transmission of second drive mechanism extremely first drive mechanism with intermediate drive mechanism (60) and through first drive mechanism with intermediate drive mechanism (60) output.

2. The transmission according to claim 1, characterized in that the intermediate transmission mechanism (60) comprises a first gear (62), a connecting shaft (61) and a second gear (63), the first gear (62) and the second gear (63) are respectively connected at two ends of the connecting shaft (61), the first gear (62) is in transmission connection with the first transmission mechanism, and the second gear (63) is in transmission connection with the second transmission mechanism.

3. Transmission according to claim 2, characterized in that said first transmission comprises a third gear (30), said third gear (30) being intermeshed with said first gear (62), said third gear (30) being selectively connectable to or disconnectable from said base body (10).

4. Transmission according to claim 2, characterized in that said second transmission means comprise a planet carrier (40) and a fourth gear (50), said fourth gear (50) being rotatably mounted on said planet carrier (40), said fourth gear (50) being simultaneously engaged with said second gear (63) and with said rotor (20), said planet carrier (40) being selectively connectable to or disconnectable from said base body (10).

5. Transmission according to claim 4, characterized in that said first gear (62), said second gear (63) and said fourth gear (50) are all three in number.

6. Transmission according to claim 5, characterized in that three of said fourth gear wheels (50) are arranged evenly along the periphery of said rotor (20).

7. The transmission of claim 1, further comprising a first clutch (70) and a second clutch (80), the first clutch (70) being disposed between the first transmission and the base (10), the second clutch (80) being disposed between the second transmission and the base (10).

8. The transmission of claim 7, further comprising a drive mechanism for controlling opening and closing of the first clutch (70) and the second clutch (80).

9. Transmission according to claim 8, characterized in that the drive mechanism comprises a hydraulic pump (100) and a directional control valve (110), the hydraulic pump (100) being adapted to power the actuation of the first clutch (70) and the second clutch (80), the directional control valve (110) being adapted to control the switching of the connection oil paths between the hydraulic pump (100) and the first clutch (70) and the second clutch (80).

10. A variator comprising a transmission as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of transmission mechanisms, in particular to a transmission device and a transmission.

Background

With the rapid development of society, people have more and more requirements on the functions of machines and higher performance requirements. Planetary gear transmission is a transmission form widely applied to various industrial fields at present.

The traditional planetary gear train mechanism has low integration level, high cost, complex structure and short service life. In the application of the traditional planetary gear reducer and the planetary gear transmission, the planetary gear train is a gear mechanism with single-shaft input and single-shaft output, can only realize single input and single output, is suitable for a machine, cannot realize modularization, and has poor universality.

It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a transmission device and a transmission, which are suitable for more working condition requirements.

To achieve the above object, the present invention provides a transmission device including:

a substrate;

the first transmission mechanism is selectively connected or disconnected with the base body;

the second transmission mechanism is selectively connected or disconnected with the base body; and

the intermediate transmission mechanism is arranged between the first transmission mechanism and the second transmission mechanism;

wherein the first transmission mechanism, the second transmission mechanism and the intermediate transmission mechanism are configured to: when the first transmission mechanism is connected with the base body and the second transmission mechanism is disconnected with the base body, the power of the base body is transmitted to the second transmission mechanism through the first transmission mechanism and the intermediate transmission mechanism and is output through the second transmission mechanism, and when the first transmission mechanism is disconnected with the base body and the second transmission mechanism is connected with the base body, the power of the base body is transmitted to the first transmission mechanism and the intermediate transmission mechanism through the second transmission mechanism and is output through the first transmission mechanism and the intermediate transmission mechanism.

In some embodiments, the intermediate transmission mechanism includes a first gear, a connecting shaft, and a second gear, the first gear and the second gear are respectively connected to two ends of the connecting shaft, the first gear is in transmission connection with the first transmission mechanism, and the second gear is in transmission connection with the second transmission mechanism.

In some embodiments, the first transmission includes a third gear intermeshed with the first gear, the third gear being selectively connectable to and disconnectable from the base.

In some embodiments, the second transmission mechanism includes a fourth gear mounted to the base, a carrier rotatably mounted to the carrier, and a fifth gear in simultaneous meshing engagement with the second and fourth gears, the carrier being selectively connectable to and disconnectable from the base.

In some embodiments, the first gear, the second gear, and the fifth gear are all three in number.

In some embodiments, three fifth gears are evenly arranged along the periphery of the fourth gear.

In some embodiments, the transmission further includes a first clutch disposed between the first transmission and the base and a second clutch disposed between the second transmission and the base.

In some embodiments, the transmission further comprises a drive mechanism for controlling the opening and closing of the first clutch and the second clutch.

In some embodiments, the drive mechanism includes a hydraulic pump for powering the actuation of the first and second clutches and a directional valve for controlling the shifting of the connection oil path between the hydraulic pump and the first and second clutches.

In order to achieve the purpose, the invention also provides a transmission which comprises the transmission device.

Based on the technical scheme, the first transmission mechanism and the second transmission mechanism are matched with the base body in a mode of selectively connecting or disconnecting, so that the connection states of the first transmission mechanism and the second transmission mechanism with the base body can be switched according to actual needs, the output states of the first transmission mechanism, the second transmission mechanism and the middle transmission mechanism are changed, the number of the output ends of the transmission device is changed, and the requirements of more working conditions are met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic diagram of one embodiment of the transmission of the present invention.

FIG. 2 is a schematic structural diagram of one embodiment of the transmission of the present invention.

FIG. 3 is a schematic view of another embodiment of the transmission of the present invention.

Fig. 4 is a schematic view of the structure of an intermediate transmission mechanism in one embodiment of the transmission of the present invention.

FIG. 5 is a schematic view of a first side of an embodiment of the transmission of the present invention.

FIG. 6 is a schematic diagram of the second side of an embodiment of the transmission of the present invention.

FIG. 7 is a hydraulic schematic of the switching mechanism in one embodiment of the transmission of the present invention.

In the figure:

10. a substrate; 20. a rotating body; 30. a third gear; 40. a planet carrier; 50. a fourth gear; 60. an intermediate transmission mechanism; 61. a connecting shaft; 62. a first gear; 63. a second gear; 70. a first clutch; 80. a second clutch; 90. a housing; 100. a hydraulic pump; 110. a reversing valve.

Detailed Description

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. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention.

As shown in fig. 1 to 3, in one embodiment of the present invention, the actuator includes a base 10, a first actuator, a second actuator, and an intermediate actuator, the rotor 20 is rotatable with respect to the base 10, the first actuator is selectively connected to or disconnected from the base 10, a portion of the second actuator is selectively connected to or disconnected from the base 10, the intermediate actuator 60 is disposed between the first actuator and the second actuator, and the first actuator, the second actuator, and the intermediate actuator 60 are configured to: the power obtained by the rotating body 20 under the restriction of the first transmission mechanism and the intermediate transmission mechanism 60 is output through the second transmission mechanism when the first transmission mechanism is connected to the base body 10 and the portion of the second transmission mechanism is disconnected from the base body 10, and the power obtained by the rotating body 20 when the first transmission mechanism is disconnected from the base body 10 and the portion of the second transmission mechanism is connected to the base body 10 is transmitted to the first transmission mechanism and the intermediate transmission mechanism 60 through the second transmission mechanism and is output through the first transmission mechanism and the intermediate transmission mechanism 60.

In the above embodiments, the first transmission mechanism and the second transmission mechanism are respectively matched with the base body 10 in a mode of selectively connecting or disconnecting, that is, the first transmission mechanism can be connected with the base body 10 or disconnected with the base body 10; parts of the second transmission mechanism can be connected to the base body 10 or disconnected from the base body 10.

The advantage of the arrangement is that the output states (including the non-output state and the output state, wherein the first transmission mechanism, the second transmission mechanism or the intermediate transmission mechanism is kept still or is used as a transmission part to transmit power) of the first transmission mechanism, the second transmission mechanism or the intermediate transmission mechanism can be changed by switching the connection state (including connection and disconnection) of the first transmission mechanism and the base body 10 and the connection state of the second transmission mechanism and the base body 10 according to actual needs, and the first transmission mechanism, the second transmission mechanism or the intermediate transmission mechanism is used as an output part to output power in the output state, so that the number of the output ends of the transmission device is changed, and the requirements of more working conditions are met.

When the first transmission mechanism is connected to the base body 10 and a part of the second transmission mechanism is disconnected from the base body 10, the first transmission mechanism is fixed relative to the base body 10, the second transmission mechanism serves as an output member under the restriction of the first transmission mechanism and the intermediate transmission mechanism 60, and the power obtained by the rotating body 20 is output through the second transmission mechanism.

When the first transmission mechanism is disconnected from the base body 10 and the part of the second transmission mechanism is connected to the base body 10, the part of the second transmission mechanism is fixed relative to the base body 10, the first transmission mechanism and the intermediate transmission mechanism 60 serve as output members, and the power obtained by the rotating body 20 is transmitted to the first transmission mechanism and the intermediate transmission mechanism 60 through the part of the second transmission mechanism movable relative to the base body 10 and is output through the first transmission mechanism and the intermediate transmission mechanism 60. At this time, the first transmission mechanism and the intermediate transmission mechanism 60 can both output power, so that the output ends of the transmission device are increased, and more requirements can be met; meanwhile, when more output ends are not needed, the mode of outputting only through the second transmission mechanism can be switched, the output form is flexible and switchable, and the adaptability is higher.

The transmission further comprises a housing 90, the base body 10, the first transmission mechanism, the second transmission mechanism and the intermediate transmission mechanism 60 being arranged in the housing 90.

The base body 10 and the shell 90 are relatively fixed, the base body 10 can be of a shaft structure, the rotating body 20 is sleeved on the periphery of the base body 10, and external force acts on the rotating body 20 to enable the rotating body 20 to rotate around the central axis of the base body 10 relative to the base body 10.

As shown in fig. 4, the intermediate transmission mechanism 60 includes a first gear 62, a connecting shaft 61 and a second gear 63, the first gear 62 and the second gear 63 are respectively connected to two ends of the connecting shaft 61, the first gear 62 is in transmission connection with the first transmission mechanism, and the second gear 63 is in transmission connection with the second transmission mechanism. The transmission connection means that power can be transmitted, the intermediate transmission mechanism serves as a component for transmitting power in the middle, and power transmission between the first transmission mechanism and the second transmission mechanism can be realized.

The intermediate transmission 60 is in the form of a double gear and can be in transmission connection, for example in meshing connection, with both the first transmission and the second transmission.

As shown in fig. 1-6, the first transmission includes a third gear 30, the third gear 30 intermeshes with the first gear 62, and the third gear 30 is selectively connectable to or disconnectable from the base 10.

The periphery of third gear 30 sets up the teeth of a cogwheel, and the center of third gear 30 is equipped with the through-hole, and third gear 30 passes through the through-hole cover and establishes the periphery at base member 10, and the teeth of a cogwheel of first gear 62 periphery and the teeth of a cogwheel intermeshing of third gear 30 periphery.

The second transmission mechanism includes a carrier 40 and a fourth gear 50, the fourth gear 50 is rotatably mounted on the carrier 40, the fourth gear 50 is simultaneously engaged with the second gear 63 and the rotor 20, and the carrier 40 is selectively connected to or disconnected from the base body 10.

The number of the first gear 62, the second gear 63 and the fourth gear 50 can be flexibly set according to the requirement, and for example, the number can be one, two or three.

The three fourth gears 50 are uniformly arranged along the outer circumference of the rotating body 20. The three first gears 62 are uniformly arranged along the outer circumference of the third gear 30. The planet carrier 40 is triangular in shape.

The transmission may further include a first clutch 70 and a second clutch 80, the first clutch 70 being disposed between the first transmission and the base 10, the second clutch 80 being disposed between the second transmission and the base 10.

When the first clutch 70 is in the engaged state, the third gear 30 is fixedly connected with the base body 10; when the first clutch 70 is in the disengaged state, the third gear 30 is disconnected from the base 10, and the third gear 30 can rotate relative to the base 10. When the second clutch 80 is in the engaged state, the planet carrier 40 is fixedly connected with the base body 10; when the second clutch 80 is in the disengaged state, the carrier 40 is disconnected from the base body 10, and the carrier 40 can rotate relative to the base body 10.

By providing the first clutch 70 and the second clutch 80, the connection state of the first transmission mechanism and the second transmission mechanism to the base body 10 can be easily controlled.

The transmission may further include a driving mechanism for controlling opening and closing of the first clutch 70 and the second clutch 80.

As shown in fig. 7, the driving mechanism may include a hydraulic pump 100 for powering the actuation of the first clutch 70 and the second clutch 80, and a direction change valve 110 for controlling the switching of the connection oil path between the hydraulic pump 100 and the first clutch 70 and the second clutch 80.

The first clutch 70 and the second clutch 80 are normally closed hydraulic clutches, the directional valve 110 includes a two-position four-way directional valve, an oil inlet of the valve is communicated with an oil outlet P of the hydraulic pump 100, an oil outlet of the valve is communicated with an oil return port T of the hydraulic pump 100, and two working oil ports of the valve are respectively communicated with the first clutch 70 and the second clutch 80.

When the right position of the directional valve 110 is the working position, the hydraulic oil of the hydraulic pump 100 is supplied to the second clutch 80, so that the valve rod of the second clutch 80 moves to the left, the second clutch 80 is in the disengaged state, and the hydraulic oil in the valve rod chamber of the first clutch 70 is communicated with the oil return port T, and thus is in the engaged state.

When the left position of the directional valve 110 is the working position, the hydraulic oil of the hydraulic pump 100 is supplied to the first clutch 70, so that the valve rod of the first clutch 70 is moved to the right, the first clutch 70 is in the disengaged state, and the hydraulic oil in the valve rod chamber of the second clutch 80 is communicated with the oil return port T, and thus is in the engaged state.

The operation of one embodiment of the transmission of the present invention is described below with reference to fig. 1-7:

firstly, the hydraulic pump 100 is started, at the moment, the reversing valve 110 does not act, pressure oil enters a rod cavity of the oil cylinder of the second clutch 80, at the moment, a movable plate and a static plate of the second clutch 80 are disengaged, and the planet carrier 40 is disconnected with the base body 10; while the first clutch 70 is kept engaged, the third gear 30 is connected to the base body 10, and the third gear 30 is fixed relative to the base body 10. At this time, the transmission device is a single degree of freedom planetary gear train, when the rotating body 20 obtains external force to rotate relative to the base body 10, the intermediate transmission mechanism 60 and the fourth gear 50 perform a compound motion of rotating around their own axes and revolving around the central axis of the base body 10 under the restriction of the third gear 30, the carrier 40 performs a rotational motion around the central axis of the base body 10, and the carrier 40 is an output end. The transmission is a planetary gear transmission mechanism with a large speed ratio.

When the direction valve 110 is energized, pressurized oil enters the rod chamber of the first clutch 70, at which time the first clutch 70 is disengaged and the third gear 30 is disconnected from the base 10; while the second clutch 80 remains engaged, the carrier 40 is connected to the base body 10, and the carrier 40 is fixed relative to the base body 10. At this time, the transmission device is a fixed-axis gear train, when the rotating body 20 obtains external force to rotate relative to the base body 10, the fourth gear 50, the intermediate transmission mechanism 60 and the third gear 30 all make self-rotation motion, the first transmission mechanism and the three intermediate transmission mechanisms 60 are output ends, the first gears 62 of the three intermediate transmission mechanisms 60 are three offset outputs, and the third gear 30 is a coaxial output.

Through the description of the multiple embodiments of the transmission device, the embodiment of the transmission device realizes the change of the output end by changing the connection state of the first transmission mechanism and the second transmission mechanism with the base body, realizes different power flow distribution, and has the advantages of compact structure, convenient operation and wide application range.

Based on the transmission device, the invention also provides a speed changer which comprises the transmission device.

The positive technical effects of the transmission device in the above embodiments are also applicable to the transmission, and are not described in detail here.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made without departing from the principles of the invention, and these modifications and equivalents are intended to be included within the scope of the claims.