CN219600925U - Transfer case with high power output, agricultural machinery transmission system and self-propelled agricultural machinery - Google Patents

Abstract

The utility model relates to the technical field of transfer cases of agricultural machinery, in particular to a transfer case with high-power output, which comprises a main transfer case and an angle transmission case, wherein the input end of the main transfer case is used for being connected with the output end of an engine, the output end of the main transfer case is connected with the input end of the angle transmission case, a dry type hydraulic clutch is arranged in the main transfer case, a wet type hydraulic clutch is arranged in the angle transmission case, a motor interface is arranged on the wet type hydraulic clutch, the motor interface is connected with a hydraulic motor, and the wet type hydraulic clutch and the dry type hydraulic clutch are both connected with a control valve group; the hydraulic transmission is integrated with the characteristics of high efficiency of flexible transmission and mechanical transmission of hydraulic transmission, the transmission efficiency is greatly improved while the reliability of control is ensured, the power of a transmission system under a high-power working condition can be effectively and efficiently output, and the research and development and localization processes of middle-high-end high-horsepower agricultural machinery equipment in China can be promoted.

Description

Transfer case with high power output, agricultural machinery transmission system and self-propelled agricultural machinery

Technical Field

The utility model relates to the technical field of transfer cases of agricultural machinery, in particular to a transfer case with high-power output, an agricultural machinery transmission system and a self-propelled agricultural machinery.

Background

At present, the matched power of self-propelled agricultural machinery in China is basically lower than 360 horsepower, the transfer case technology used is mature, and the performance is stable.

With the technical upgrading of agricultural machinery equipment in China, the matched power is continuously improved, the existing transfer case cannot meet the effective and efficient output of power of a transmission system under the working condition of high dynamic rate, and the development and localization processes of the high-end and high-horsepower agricultural machinery equipment in China are severely restricted.

Disclosure of Invention

The utility model aims to provide a transfer case with high-power output, which can improve transmission efficiency, meet the requirement of effective and high-efficiency output of power of a transmission system under a high-power working condition, and promote the development and localization processes of middle-high-end high-horsepower agricultural machinery equipment in China.

The utility model further aims to provide an agricultural machine transmission system which can improve transmission efficiency, can meet the requirement of effective and efficient power output of the transmission system under a high-power working condition, and can promote the development and localization processes of middle-high-end high-horsepower agricultural machine equipment in China.

The utility model further aims to provide a self-propelled agricultural machine, which can improve the transmission efficiency, meet the requirement of effective and efficient output of power of a transmission system under a high-power working condition, and promote the development and localization processes of middle-high-end high-horsepower agricultural machine equipment in China.

The technical scheme of the utility model is realized as follows:

the utility model provides a high-power take off's transfer case, includes main transfer case and angle drive case, the input of main transfer case is used for being connected with the output of engine, the output of main transfer case with the input of angle drive case is connected, the built-in dry-type hydraulic clutch of main transfer case, the built-in wet-type hydraulic clutch of angle drive case, be provided with the motor interface on the wet-type hydraulic clutch, motor interface connection hydraulic motor, wet-type hydraulic clutch with dry-type hydraulic clutch all is connected with the control valves.

Further, the main transfer case is provided with a plurality of power output ports, wherein four power output ports are in parallel shaft transmission with the power input end of the engine and are used for installing and connecting a hydraulic pump of a hydraulic system.

Further, the four power output ports are a first power output port, a second power output port, a third power output port and a fourth power output port respectively.

Further, the power output ports further comprise a fifth power output port, and the fifth power output port and the power input end of the engine are located on the same horizontal plane and form an included angle of 90 degrees for right-angle transmission output.

Further, the main transfer case and the angle drive case are both provided with gear pumps, and the two gear pumps are communicated with a lubrication system and are respectively used for providing circulating lubricating oil for the main transfer case and the angle drive case.

Further, the output end of the main transfer case is further provided with a high-elastic coupling, and the output end of the main transfer case is connected with the input end of the angle transmission case through the high-elastic coupling.

Further, the dry type hydraulic clutch is a friction type hydraulic control normally open clutch, and is in a combined state when the clutch is in a pressure-releasing state;

when the control valve group controls the wet hydraulic clutch to be in a separation state and then the dry hydraulic clutch is in a combination state, the output end of the angle transmission box works positively;

when the control valve group controls the wet hydraulic clutch to be in a combined state and starts the hydraulic motor to be in a separated state, and then the dry hydraulic clutch is connected to the engine in the combined state, the output end of the angle gearbox is started in a soft mode;

when the control valve group controls the dry hydraulic clutch to be in a separation state and then the wet hydraulic clutch is in a combination state, the output end of the angle transmission box reversely works.

An agricultural machinery transmission system comprises the transfer case with high power output.

Further, the transfer case also comprises an engine, a power connection disc and a control valve group, wherein the engine is connected with the main transfer case through the power connection disc;

the control valve group is used for controlling the wet hydraulic clutch and the dry hydraulic clutch.

A self-propelled agricultural machine comprises the agricultural machine transmission system.

Compared with the prior art, the utility model has the beneficial effects that:

the transfer case for high-power output comprises a main transfer case and an angle transmission case, wherein double clutches (a wet hydraulic clutch and a dry hydraulic clutch) are arranged in the transfer case, and the wet hydraulic clutch is connected with a hydraulic motor to realize free switching of forward and reverse rotation and soft start of an output end.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a transfer case of the present utility model connected to an engine;

FIG. 2 is a schematic illustration of the transfer case of FIG. 2 with a main structure of the transfer case shown in section;

FIG. 3 is a schematic diagram of the configuration of four power outlets on a main transfer case of the present utility model.

In the figure: (description of the reference numerals)

1-a main transfer case; 2-an angle transmission case; 3-a dry hydraulic clutch;

4-wet hydraulic clutch; 5-a hydraulic motor; 6-a lubrication system;

7-a power output port; 701-a first power take-off; 702-a second power take-off;

703-a third power outlet; 704-fourth power take-off;

8-an engine; 9-a power connection pad; 10-the output end of the angle transmission case.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model 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 utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Example 1

At present, the matched power of self-propelled agricultural machinery in China is basically lower than 360 horsepower, the transfer case technology used is mature, and the performance is stable.

With the technical upgrading of agricultural machinery equipment in China, the matched power is continuously improved, the existing transfer case cannot meet the effective and efficient output of power of a transmission system under the working condition of high dynamic rate, and the development and localization processes of the high-end and high-horsepower agricultural machinery equipment in China are severely restricted.

Aiming at the defects existing in the prior art, the embodiment provides a transfer case with high power output, as shown in fig. 1-3, which comprises a main transfer case 1 and an angle transmission case 2, wherein the input end of the main transfer case 1 is connected with the output end of an engine 8, the output end of the main transfer case 1 is connected with the input end of the angle transmission case 2, a dry type hydraulic clutch 3 is arranged in the main transfer case 1, a wet type hydraulic clutch 4 is arranged in the angle transmission case 2, a motor interface is arranged on the wet type hydraulic clutch 4, the motor interface is connected with a hydraulic motor 5, the wet type hydraulic clutch 4 and the dry type hydraulic clutch 3 are connected with a control valve group, and the control valve group is used for respectively controlling the wet type hydraulic clutch 4 and the dry type hydraulic clutch 3 to be in a combined state and a separated state.

The main transfer case 1 is provided with a plurality of power output ports 7, wherein four power output ports 7 and the power input end of an engine 8 are driven by parallel shafts, and are used for installing and connecting a hydraulic pump of a hydraulic system, and the four power output ports 7 are connected by gears and power output discs and are not influenced by a clutch. The four power output ports 7 are a first power output port 701, a second power output port 702, a third power output port 703 and a fourth power output port 704, respectively, as shown in fig. 3. In addition, there is a fifth power output, which is located at the same horizontal plane as the power input end of the engine 8 and forms an included angle of 90 ° for right-angle transmission output.

The main transfer case 1 mainly comprises a transfer gearbox, a high-elastic coupling, a dry hydraulic clutch 3 and a gear pump, wherein the dry hydraulic clutch 3 is a friction type hydraulic control normally open clutch, is in a combination state when in pressure relief and is in a separation state when in pressure relief, and the transfer case is provided with two gear pumps, specifically, the main transfer case 1 and the angle transmission case 2 are both provided with the gear pump, and the two gear pumps are communicated with a lubrication system 6, and mainly serve to provide circulating lubricating oil for the main transfer case 1 and the angle transmission case 2. The inside of the angle transmission case 2 is provided with a wet hydraulic clutch 4, a motor interface is reserved on the angle transmission case 2, specifically, the wet hydraulic clutch 4 is provided with a motor interface, the motor interface is connected with a hydraulic motor 5, and the installation of the hydraulic motor 5 is realized, so that the soft start, the forward and reverse rotation of the output end of the transfer case are realized.

The output end of the main transfer case 1 is connected with the input end of the angle transmission case 2 through the high-elastic coupling, and the high-elastic coupling can have larger compensation error and better absorption transmission impact.

The transfer case not only meets the power output of a user in three directions, but also has the remarkable functional characteristics of realizing the forward and reverse rotation functions and soft start of angle transmission output. Namely, when the power actuating mechanism of the angle driving end is started or needs to rotate forward and backward, the soft start and the forward and backward switching can be conveniently realized by controlling the two clutches (the dry hydraulic clutch 3 and the built-in wet hydraulic clutch 4), and the specific realization mode is as follows:

1. when the output end of the angle transmission case 2 (the output end of the angle transmission case 2 is the output end 10 of the angle transmission case) is required to work in the normal rotation direction (positive direction), a user controls the wet hydraulic clutch 4 in the angle transmission case 2 through the control valve group to enable the wet hydraulic clutch to be in a separation state. Then, the user controls the dry hydraulic clutch 3 to enable the dry hydraulic clutch 3 to be in a combined state, and in this case, the output end 10 of the angle gearbox works normally under the power of the engine 8;

2. when the output end 10 of the angle gearbox is required to be started in a soft mode, a user firstly controls the built-in wet type hydraulic clutch 4 through the control valve group, so that the built-in wet type hydraulic clutch 4 is in a combined state, and the user starts the hydraulic motor 5; under the condition, the power of the output end 10 of the angle transmission case is not combined with the power of the engine 8, the angle transmission case is driven by the externally-driven hydraulic motor 5 to rotate, so that the working parts connected in an angle transmission manner rotate at a low speed to obtain a certain moment of inertia, at the moment, the built-in wet hydraulic clutch 4 is in a disconnection and separation state, and the dry hydraulic clutch 3 is combined with the power connected with the engine 8 to achieve stable soft start of the working parts;

3. when the angular gearbox output end 10 is required to reversely rotate, a user controls the dry hydraulic clutch 3 through the control valve group to be in a separation state; thereafter, the user controls the built-in wet hydraulic clutch 4 to combine the built-in wet hydraulic clutch 4, and the user starts the hydraulic motor 5; in this case, the output end 10 of the angle gearbox is separated from the power of the engine 8, and is driven by the external hydraulic motor 5 to rotate reversely.

Example 2

This embodiment provides an agricultural drive system, as in fig. 1-2, comprising the high power output transfer case of embodiment 1, further comprising an engine 8, a power connection disc 9 and a control valve bank (not shown), said engine 8 being connected to said main transfer case 1 via said power connection disc 9.

The control valve group is used for controlling the wet hydraulic clutch 4 and the dry hydraulic clutch 3 to respectively control the combination or the separation of the control valve group and the wet hydraulic clutch.

The power connection disc 9 is an elastic power connection disc.

The agricultural machinery transmission system can improve transmission efficiency, can meet the requirement of effective and efficient output of transmission system power under high-power working conditions, and can promote the research and development and localization processes of middle-high-end high-horsepower agricultural machinery equipment in China.

Example 3

The embodiment provides a self-propelled agricultural machinery, which comprises the agricultural machinery transmission system in the embodiment 2, can improve transmission efficiency, satisfies the effective and efficient output of transmission system power under high-power working conditions, and can promote the research and development and localization processes of middle-high-end high-horsepower agricultural machinery equipment in China.

The technical scheme of the utility model has the beneficial effects that:

the transfer case with high power output comprises a main transfer case 1 and an angle transmission case 2, wherein double clutches (a wet hydraulic clutch 4 and the dry hydraulic clutch 3) are arranged in the transfer case, the wet hydraulic clutch 4 is connected with a hydraulic motor 5 to realize free switching of forward and reverse rotation and soft start of an output end, the novel hydraulic and mechanical transmission hybrid transfer power transmission case integrates the characteristics of flexible transmission and high mechanical transmission efficiency of hydraulic transmission, the reliability of control is ensured, the transmission efficiency is greatly improved, the effective and high-efficiency output of power of a transmission system under high power working conditions can be met, and the research, development and domestic process of high-end high-horsepower agricultural machinery equipment in China can be promoted.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a high-power take off's transfer case, its characterized in that, includes main transfer case (1) and angle drive case (2), the input of main transfer case (1) is used for being connected with the engine output, the output of main transfer case (1) with the input of angle drive case (2) is connected, main transfer case (1) embeds dry-type hydraulic clutch (3), angle drive case (2) embeds wet-type hydraulic clutch (4), be provided with the motor interface on wet-type hydraulic clutch (4), motor interface connection hydraulic motor (5), wet-type hydraulic clutch (4) with dry-type hydraulic clutch (3) all are connected with the control valve group.

2. The high power take off transfer case according to claim 1, characterized in that the main transfer case (1) has a plurality of power take-offs (7), four of which power take-offs (7) are driven parallel to the power input of the engine (8) and are used for mounting and connecting hydraulic pumps of a hydraulic system.

3. The high power take off transfer case of claim 2, wherein the four power take off (7) are a first power take off (701), a second power take off (702), a third power take off (703) and a fourth power take off (704), respectively.

4. A transfer case for high power output according to claim 3, wherein the plurality of power outlets (7) further comprises a fifth power outlet, and the fifth power outlet is located at the same horizontal plane as the power input end of the engine and forms an included angle of 90 ° for right angle transmission output after the transfer case is connected with the engine.

5. The high power output transfer case according to claim 1, characterized in that the main transfer case (1) and the angle drive case (2) are each provided with a gear pump, both gear pumps being in communication with a lubrication system (6) for providing circulating lubrication oil to the main transfer case (1) and the angle drive case (2), respectively.

6. The high-power-take-off transfer case according to claim 1, characterized in that the output end of the main transfer case (1) is further provided with a high-elastic coupling, through which the output end of the main transfer case (1) is connected with the input end of the angle gearbox (2).

7. The high power take off transfer case of claim 1 wherein said dry hydraulic clutch (3) is a friction hydraulically controlled normally open clutch which is in an engaged condition when pressurized and in a disengaged condition when depressurized;

when the control valve group controls the wet hydraulic clutch (4) to be in a separation state and then the dry hydraulic clutch (3) to be in a combination state, the output end of the angle transmission case (2) works positively;

when the control valve group controls the wet hydraulic clutch (4) to be in a combined state and starts the hydraulic motor (5) to be in a separated state, and then the dry hydraulic clutch (3) is in a combined state to be connected with an engine, the output end of the angle transmission case (2) is started in a soft mode;

when the control valve group controls the dry type hydraulic clutch (3) to be in a separation state and the wet type hydraulic clutch (4) to be in a combination state, the output end of the angle transmission case (2) works reversely.

8. An agricultural drive system comprising the high power output transfer case of any one of claims 1-7.

9. The agricultural drive system of claim 8, further comprising an engine (8), a power land (9) and a control valve bank, the engine (8) being connected with the main transfer case (1) through the power land (9);

the control valve group is used for controlling the wet hydraulic clutch (4) and the dry hydraulic clutch (3).

10. A self-propelled agricultural machine comprising the agricultural machine drive system of claim 8 or 9.