阅读说明：本技术 一种青贮机割台变速箱及青贮机 (Silage harvester header gearbox and silage harvester ) 是由 刘飞香 田泽宇 章如权 罗军 张贝贝 成习军 徐浩 杨思远 于 2021-01-15 设计创作，主要内容包括：本发明公开了一种青贮机割台变速箱及青贮机,该青贮机割台变速箱包括：箱体和可切换输出正反向转动的换向组件；与换向组件的输出端相连的输出轴,输出轴上设有至少一个动力输出组件,单个动力输出组件包括主动齿轮、惰轮和法兰轴内齿圈,主动齿轮与输出轴固定连接,法兰轴内齿圈与箱体转动连接,以输出动力,惰轮分别与主动齿轮和法兰轴内齿圈啮合传动。通过在同一输出轴上设置至少一个动力输出组件,并通过改变动力输出组件的传动比,可输出至少两个同轴差速转动的动力；且通过换向组件可使输出轴正反转,输出轴和所有动力输出组件共用同一个动力源,减少了动力源的数量,降低了成本及结构复杂性。该青贮机包括上述青贮机割台变速箱。(The invention discloses a header gearbox of an ensiling machine and the ensiling machine, wherein the header gearbox of the ensiling machine comprises: the box body and the reversing component can switch output forward and reverse rotation; the single power output assembly comprises a driving gear, an idler and a flange shaft inner gear ring, the driving gear is fixedly connected with the output shaft, the flange shaft inner gear ring is rotatably connected with the box body to output power, and the idler is respectively in meshing transmission with the driving gear and the flange shaft inner gear ring. At least one power output assembly is arranged on the same output shaft, and at least two coaxial differential rotating powers can be output by changing the transmission ratio of the power output assemblies; and the output shaft can rotate positively and negatively through the reversing assembly, and the output shaft and all power output assemblies share the same power source, so that the number of the power sources is reduced, and the cost and the structural complexity are reduced. The silage harvester comprises the silage harvester header gearbox.)

1. The utility model provides an ensilage header gearbox which characterized in that includes:

the box body and the reversing component can switch output forward and reverse rotation;

the power output assembly comprises a driving gear (21), an idler (22) and a flange shaft inner gear ring (23), the driving gear (21) is fixedly connected with the output shaft (1), the flange shaft inner gear ring (23) is rotatably connected with the box body to output power, and the idler (22) is in meshing transmission with the driving gear (21) and the flange shaft inner gear ring (23) respectively.

2. The silage header gearbox of claim 1, wherein the casing comprises a first casing (31) for mounting a single power take off assembly in a one-to-one correspondence, the flange shaft annulus gear (23) being in rotational connection with an inner side of the first casing (31).

3. The silage header gearbox according to claim 2, wherein at least one stationary shaft (311) is fixed in the first casing (31), and the idler (22) is rotatably connected to the stationary shaft (311).

4. The silage harvester header gearbox according to claim 3, wherein the number of the power output assemblies and the first boxes (31) is at least two, the positions of the fixed shafts (311) of two adjacent first boxes (31) are different, and a position limiting hole for the corresponding fixed shaft (311) to pass through is arranged at the position of one of the two adjacent first boxes (31) corresponding to the fixed shaft (311) of the other one.

5. The silage header gearbox according to claim 4, characterized in that one end of the fixed shaft (311) is externally threaded to fixedly connect two adjacent first casings (31) by means of a locknut (312) threadedly connected thereto.

6. The silage harvester header gearbox of any one of claims 1-5, wherein the reversing assembly comprises:

a main transmission bevel gear (41) and a first driven transmission bevel gear (42) and a second driven transmission bevel gear (43) which are respectively in meshing transmission with the main transmission bevel gear (41), wherein the first driven transmission bevel gear (42) and the second driven transmission bevel gear (43) are oppositely arranged so that the rotation directions of the two are opposite;

and the reversing gear sleeve (44) is connected with the first driven bevel gear (42) and the second driven bevel gear (43) in a switchable manner, and the reversing gear sleeve (44) is fixedly connected with the output shaft (1).

7. The silage header gearbox of claim 6, wherein the reversing gearcase (44) is movable between the first and second slave bevel drive gears (42, 42) to shift the reversing gearcase (44) into connection with the first or second slave bevel drive gear (42, 43).

8. The silage harvester header gearbox of claim 7, wherein the first driven bevel gear (42) and the second driven bevel gear (43) are respectively provided with an insertion hole, and two ends of the reversing gear sleeve (44) are respectively provided with an insertion part for being matched and fixed with the corresponding insertion holes.

9. The gearbox of claim 6, wherein the housing comprises a second housing (32), the reversing assembly is disposed in the second housing (32), and a rotating shaft of the main drive bevel gear (41) is rotatably connected to the second housing (32).

10. An ensilage machine comprising an ensilage machine header gearbox, wherein said ensilage machine header gearbox is as defined in any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a gearbox of a cutting table of an ensilage machine. In addition, the invention also relates to an ensiling machine comprising the ensiling machine cutting table gearbox.

Background

The header belongs to the important part of silage machine, and it includes cutting knife, collection stem cylinder and actuating mechanism, and during normal work, need guarantee cutting knife and collection stem cylinder differential and rotate.

In the prior art, a driving mechanism usually adopts two power sources to respectively drive a cutter head and a stalk collecting roller to rotate; obviously, such a drive mechanism is complicated in structure, high in space occupation ratio, and high in cost.

In addition, in order to prevent the cutter head from being blocked due to overload, the cutter head needs to be capable of reversing, the reversing cannot be realized on a single group of header rollers in the prior art, and the reversing needs to be carried out from a power source head when external power is input, so that higher requirements are provided for a driving mechanism, and the power control cost is further increased.

In summary, how to simplify the structure of the power mechanism and reduce the power cost while satisfying the requirements of differential rotation and reversible rotation of the cutter head and the stalk collecting roller is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of this, the present invention provides a gearbox for a cutting table of an ensilage machine, so as to reduce the structural complexity of a power mechanism and reduce the power cost.

Another object of the present invention is to provide an ensilage machine comprising the above mentioned gearbox for the cutting table of the ensilage machine, wherein the gearbox for the cutting table of the ensilage machine has a simple structure and is low in cost.

In order to achieve the above purpose, the invention provides the following technical scheme:

a silage harvester header gearbox comprising:

the box body and the reversing component can switch output forward and reverse rotation;

the power output assembly comprises a driving gear, an idler and a flange shaft inner gear ring, the driving gear is fixedly connected with the output shaft, the flange shaft inner gear ring is rotatably connected with the box body to output power, and the idler is respectively in meshing transmission with the driving gear and the flange shaft inner gear ring.

Preferably, the box body comprises a first box body used for installing the single power output assembly in a one-to-one correspondence mode, and the annular gear of the flange shaft is rotatably connected with the inner side of the first box body.

Preferably, at least one fixed shaft is fixedly arranged in the first box body, and the idler wheel is rotatably connected with the fixed shaft.

Preferably, the number of the power output assemblies and the number of the first box bodies are at least two, the positions of the fixing shafts of two adjacent first box bodies are different, and a position of one of the two adjacent first box bodies, which corresponds to the position of the fixing shaft of the other one of the two adjacent first box bodies, is provided with a limiting hole for the corresponding fixing shaft to pass through.

Preferably, one end of the fixed shaft is provided with an external thread so as to fixedly connect two adjacent first cases through a lock nut in threaded connection therewith.

Preferably, the reversing assembly comprises:

the first driven bevel gear and the second driven bevel gear are oppositely arranged so that the rotation directions of the first driven bevel gear and the second driven bevel gear are opposite;

and the reversing gear sleeve is connected with the first driven bevel gear and the second driven bevel gear in a switchable manner, and the reversing gear sleeve is fixedly connected with the output shaft.

Preferably, the reversing gear sleeve is movable between the first slave bevel drive gear and the second slave bevel drive gear to make the reversing gear sleeve in switching connection with the first slave bevel drive gear or the second slave bevel drive gear.

Preferably, the first driven transmission bevel gear and the second driven transmission bevel gear are respectively provided with an inserting hole, and two ends of the reversing gear sleeve are respectively provided with an inserting part which is used for being matched, inserted and fixed with the corresponding inserting hole.

Preferably, the box body comprises a second box body, the reversing assembly is arranged in the second box body, and a rotating shaft of the main transmission bevel gear is rotatably connected with the second box body.

The utility model provides an ensilage machine, includes the ensilage machine header gearbox, the ensilage machine header gearbox is above-mentioned arbitrary ensilage machine header gearbox.

According to the cutting table gearbox of the silage harvester, at least one power output assembly is arranged on the same output shaft, and the transmission ratio of the power output assembly is changed, so that the output shaft and the power output assembly can output at least two differential powers to drive different loads to rotate coaxially at different speeds.

It is apparent that the output shaft and all power take-off assemblies share the same power source, i.e. the silage cutter head gearbox has a single power source input. Compared with the prior art, the number of power sources is reduced, and the cost and the structural complexity are reduced. Meanwhile, the gearbox of the cutting table of the silage harvester only adopts a single output shaft to transmit power output, so that the inner gear rings of the flange shafts coaxially rotate, the layout is convenient, and the space volume of the box body is saved.

In addition, the direct reversing rotation of the output shaft can be realized through the reversing assembly, the reversing of the output shaft is realized, meanwhile, the power is prevented from being reversed from the initial position of the power source, meanwhile, the reversing assembly is combined with the coaxial differential output, the multipurpose of one box is realized, the structure is further simplified, and the space is saved.

The silage harvester provided by the invention comprises the silage harvester header gearbox, and has the beneficial effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a cross-sectional view of a gearbox of a header of an ensilage machine according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the case of FIG. 1;

fig. 3 is a top view of fig. 1.

The reference numerals in fig. 1 to 3 are as follows:

1 is an output shaft, 21 is a driving gear, 22 is an idle gear, 23 is a flange shaft ring gear, 31 is a first box, 311 is a fixed shaft, 312 is a locking nut, 32 is a second box, 41 is a main transmission bevel gear, 42 is a first driven transmission bevel gear, 43 is a second driven transmission bevel gear, 44 is a reversing gear sleeve, 51 is a first bearing, 52 is a second bearing, and 53 is a third bearing.

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 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.

The core of the invention is to provide a gearbox of a cutting table of an ensiling machine, so as to reduce the structural complexity of a power mechanism and reduce the power cost. The other core of the invention is to provide the silage harvester comprising the gearbox for the cutting table of the silage harvester, wherein the gearbox for the cutting table of the silage harvester has simple structure and low cost.

Referring to fig. 1-3, fig. 1 is a cross-sectional view of a gearbox of a header of an ensilage machine according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the case of FIG. 1; fig. 3 is a top view of fig. 1.

The invention provides a gearbox of a cutting table of an ensiling machine, which mainly comprises a box body, a reversing assembly, an output shaft 1 and at least one power output assembly.

Specifically, the box mainly plays a bearing role for setting and supporting the reversing assembly, the output shaft 1, the power output assembly and the like.

The reversing assembly can switch output forward and reverse rotation, and the output shaft 1 is connected with the output end of the reversing assembly, so that the reversing assembly drives the output shaft 1 to realize forward or reverse rotation.

All power output components are arranged on the output shaft 1, a single power output component comprises a driving gear 21, an idler 22 and a flange shaft ring gear 23, the driving gear 21 is fixedly connected with the output shaft 1, the flange shaft ring gear 23 is rotatably connected with the box body, the flange shaft ring gear 23 is used for outputting power, and the idler 22 is respectively in meshing transmission with the driving gear 21 and the flange shaft ring gear 23.

It can be understood that the rotating speed output by the flange shaft ring gear 23 can be changed by changing the transmission ratio of the driving gear 21, the idle gear 22 and the flange shaft ring gear 23.

Therefore, when the number of the power output components is one, the cutter head and the stalk collecting roller can be in differential rotation by respectively connecting the cutter head and the stalk collecting roller with the output shaft 1 and the flange shaft inner gear ring 23 of the power output components.

When the number of the power output components is two, the cutter head and the stalk collecting roller are correspondingly connected with the flange shaft inner gear rings 23 of the two power output components respectively, and the transmission ratios of the two power output components are different, so that the differential rotation of the cutter head and the stalk collecting roller can be realized.

Of course, the number of the power output assemblies can be more than three, so that the loads can realize differential rotation.

Therefore, the invention can be seen that at least one power output assembly is arranged on the same output shaft 1, and the transmission ratio of the power output assembly is changed, so that the output shaft 1 and the power output assembly can output at least two differential powers to drive different loads to coaxially rotate in a differential manner.

It is clear that the output shaft 1 and all power take-off assemblies share the same power source, i.e. the silage cutterhead gearbox has a single power source input. Compared with the prior art, the number of power sources is reduced, and the cost and the structural complexity are reduced. Meanwhile, the gearbox of the cutting table of the silage harvester only adopts a single output shaft 1 to transmit power output, so that the annular gears 23 of the flange shafts rotate coaxially, the layout is convenient, and the space volume of the box body is saved.

In addition, the direct reversing rotation of the output shaft 1 can be realized through the reversing assembly, the reversing of the output shaft 1 is realized, meanwhile, the power is prevented from reversing from the initial position of the power source, meanwhile, the reversing assembly is combined with the coaxial differential output, the multipurpose of one box is realized, the structure is further simplified, and the space is saved.

In view of the convenience of mounting of the power output components, on the basis of the above-described embodiment, the case includes the first case 31 for mounting the individual power output components in a one-to-one correspondence, and the flange shaft ring gear 23 is rotatably connected to the inside of the first case 31.

That is to say, the number of the first cases 31 is the same as the number of the power output assemblies, the power output assemblies and the first cases 31 are installed in the first cases 31 in a one-to-one correspondence, and the first cases 31 mainly bear the power output assemblies.

It will be appreciated that the flange shaft annulus gear 23 is rotatably connected to the inside of the first casing 31 to ensure that the flange shaft annulus gear 23 acts as a power take off to transmit power to a load.

Preferably, the flange shaft inner gear 23 is rotatably connected with the first case 31 through a first bearing 51.

In addition, when the number of the power output assemblies and the first cases 31 is at least two, it is preferable that all the first cases 31 be fixedly coupled to one body.

Further, in consideration of the convenience of mounting the idle gear 22, in the above embodiment, at least one fixed shaft 311 is fixedly installed in the first casing 31, and the idle gear 22 is rotatably coupled to the fixed shaft 311.

That is, in the present embodiment, the fixed shaft 311 serves as a shaft for supporting the idle gear 22, so that the idle gear 22 rotates around the fixed shaft 311 when operating.

In the present embodiment, the specific arrangement of the fixed shaft 311 is not limited, and the fixed shaft 311 is preferably welded and fixed to the first casing 31.

In addition, in the present embodiment, the specific number of the idle wheels 22 is not limited, and preferably, the number of the idle wheels 22 is three, and correspondingly, the number of the fixed shafts 311 is also three.

Preferably, when the number of the idle gear 22 and the fixing shaft 311 is two or more, the two or more fixing shafts 311 are uniformly arranged in the first casing 31.

In addition, in the present embodiment, the rotation connection manner between the idle gear 22 and the fixed shaft 311 is not limited, and preferably, the idle gear 22 is rotatably connected to the fixed shaft 311 through the second bearing 52.

In consideration of the positioning problem between two or more first cases 31 when the number of the first cases 31 is at least two, on the basis of the above embodiment, the number of the power output assemblies and the number of the first cases 31 are at least two, the positions of the fixing shafts 311 on two adjacent first cases 31 are different, and a position limiting hole for matching with the fixing shaft 311 for limiting is arranged at a position of one of the two adjacent first cases 31 corresponding to the fixing shaft 311 of the other one.

For convenience of description, it is assumed that there are two power output assemblies, and correspondingly, there are two first cases 31, one of the first cases 31 is called a first case, the other first case 31 is called a second case, the fixing shaft 311 of the first case is called a first fixing shaft, and the fixing shaft 311 of the second case is called a second fixing shaft, so that the positions of the first fixing shaft and the second fixing shaft are different, that is, the axes of the first fixing shaft and the second fixing shaft are not collinear; meanwhile, the second box body is provided with a limiting hole for yielding the first fixing shaft, and when the second box body is installed, the limiting hole of the second box body is directly aligned with the first fixing shaft of the first box body to be inserted, so that the first box body and the second box body can be positioned.

In view of the convenience of the connection between the first cases 31, on the basis of the above-described embodiment, one end of the fixing shaft 311 is provided with an external thread to fixedly connect the adjacent two first cases 31 by the lock nut 312 screw-coupled thereto.

That is, after the fixing shaft 311 passes through the limiting hole, the fastening nut 312 is screwed on the external thread of the fixing shaft 311, so that the adjacent two first cases 31 can be fixedly connected.

In addition, in the present embodiment, the specific structure of the reversing component and the reversing principle thereof are not limited, as long as the output shaft 1 can be rotated forward and backward.

Preferably, on the basis of the above embodiment, the reversing assembly comprises a main transmission bevel gear 41, a first slave transmission bevel gear 42, a second slave transmission bevel gear 43 and a reversing gear sleeve 44.

Specifically, the first driven bevel gear 42 and the second driven bevel gear 43 are respectively in mesh transmission with the main drive bevel gear 41 and are arranged oppositely so that the rotation directions of the first driven bevel gear 42 and the second driven bevel gear 43 are opposite, meanwhile, the reversing gear sleeve 44 is in switchable connection with the first driven bevel gear 42 and the second driven bevel gear 43, and the reversing gear sleeve 44 is fixedly connected with the output shaft 1.

That is, when the reversing gear sleeve 44 is connected to the first slave bevel gear 42, the reversing gear sleeve 44 and the output shaft 1 are connected to one body, and at this time, when the master bevel gear 41 rotates, the output shaft 1 is rotated by the first slave bevel gear 42.

When the reversing gear sleeve 44 is connected with the second slave transmission bevel gear 43, the reversing gear sleeve 44 and the output shaft 1 are connected into a whole, and at this time, when the main transmission bevel gear 41 rotates, the output shaft 1 is driven to rotate by the second slave transmission bevel gear 43.

Since the first driven bevel gear 42 and the second driven bevel gear 43 rotate in opposite directions, the reversing gear sleeve 44 is switched to connect the first driven bevel gear 42 and the second driven bevel gear 43, so that the forward and reverse rotation of the output shaft 1 can be realized.

Preferably, the first driven bevel gear 42, the second driven bevel gear 43 and the reversing gear sleeve 44 are all sleeved on the output shaft 1.

It can be understood that the first driven bevel gear 42 and the second driven bevel gear 43 are respectively rotatably sleeved with the output shaft 1, so that the second driven bevel gear 43 can rotate relative to the output shaft 1 when the first driven bevel gear 42 drives the output shaft 1 to rotate; when the second driven bevel gear 43 drives the output shaft 1 to rotate, the first driven bevel gear 42 is made to rotate relative to the output shaft 1.

Preferably, the first driven bevel gear 42 and the second driven bevel gear 43 are respectively in rotational connection with the output shaft 1 through a third bearing 53.

It should be noted that the present embodiment does not limit the specific switching manner of the reversing gear sleeve 44, and as a preferable solution, on the basis of the above embodiment, the reversing gear sleeve 44 can move between the first slave transmission bevel gear 42 and the second slave transmission bevel gear 43, so as to switch and connect the reversing gear sleeve 44 with the first slave transmission bevel gear 42 or the second slave transmission bevel gear 43.

That is, the reversing gear sleeve 44 in the present embodiment is movable, and when the reversing gear sleeve 44 is moved to the first slave bevel gear 42, the reversing gear sleeve 44 is connected to the first slave bevel gear 42; when the reversing gear sleeve 44 is moved to the second slave bevel drive gear 43, the reversing gear sleeve 44 is connected to the second slave bevel drive gear 43.

It should be noted that during the process that the reversing gear sleeve 44 moves from the first driven bevel gear 42 to the second driven bevel gear 43, the reversing gear sleeve 44 gradually separates from the first driven bevel gear 42, and preferably, when the reversing gear sleeve 44 is located at an intermediate position between the first driven bevel gear 42 and the second driven bevel gear 43, the reversing gear sleeve 44 is not connected with the first driven bevel gear 42 and the second driven bevel gear 43, that is, the power transmission is interrupted; as the reversing gear sleeve 44 continues to move, the reversing gear sleeve 44 gradually contacts the second slave transmission bevel gear 43 and finally achieves connection, and the reversing gear sleeve 44 is switched from the state of being connected with the first slave transmission bevel gear 42 to the state of being connected with the second slave transmission bevel gear 43. And vice versa.

It should be noted that the present embodiment is not limited to a specific driving device for driving the reversing gear sleeve 44 to rotate, for example, a power-driven shift lever may be used to shift the reversing gear sleeve 44 to move.

In consideration of the implementation manner of connecting the reversing gear sleeve 44 with the first driven bevel gear 42 and the second driven bevel gear 43 respectively, on the basis of the above embodiment, the first driven bevel gear 42 and the second driven bevel gear 43 are provided with inserting holes respectively, and two ends of the reversing gear sleeve 44 are provided with inserting parts respectively for being matched, inserted and fixed with the corresponding inserting holes.

That is, when the direction changing gear sleeve 44 moves to the first slave transmission bevel gear 42, the direction changing gear sleeve 44 is inserted into the insertion hole of the first slave transmission bevel gear 42 toward the insertion portion of the first slave transmission bevel gear 42, and the connection between the direction changing gear sleeve 44 and the first slave transmission bevel gear 42 is achieved by means of the frictional force between the insertion portion and the insertion hole, that is, when the first slave transmission bevel gear 42 rotates, the direction changing gear sleeve 44 rotates together with the first slave transmission bevel gear 42 by transmitting the power through the frictional force between the first slave transmission bevel gear 42 and the direction changing gear sleeve 44.

Similarly, the reversing gear sleeve 44 is connected with the second driven bevel gear 43 by the matching connection of the insertion part facing one end of the second driven bevel gear 43 and the insertion hole of the second driven bevel gear 43, and the power is transmitted by the friction force between the reversing gear sleeve 44 and the second driven bevel gear 43.

In view of the smoothness of the connection between the insertion part and the insertion hole, the insertion part is preferably a cone part; the plug hole is an inner taper hole, that is, the connection between the reversing gear sleeve 44 and the first driven bevel gear 42 or the second driven bevel gear 43 is realized by the matching connection between the cone part and the inner taper hole in the present embodiment.

Further, on the basis of the above embodiment, the box body comprises the second box body 32, the reversing component is arranged in the second box body 32, and the rotating shaft of the main transmission bevel gear 41 is rotatably connected with the second box body 32.

That is to say, the reversing component in this embodiment is disposed in the second box 32 to avoid the reversing component being exposed, and at the same time, the second box 32 plays a role in disposing and supporting the reversing component.

Preferably, the second case 32 is fixedly coupled to the first case 31 adjacent thereto.

In addition to the above mentioned gear box of the header of the silage harvester, the present invention also provides a silage harvester including the gear box of the header of the silage harvester disclosed in the above embodiments, and the structure of other parts of the silage harvester is referred to the prior art, and will not be described herein again.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The gearbox of the header of the silage harvester and the silage harvester provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.