Gear shifting module, gearbox assembly and operation machine

Abstract

The utility model relates to the technical field of transmission equipment, and discloses a gear shifting module, a gearbox assembly and an operation machine. The gear shifting module comprises a shifting fork assembly and a middle transmission assembly. The shifting fork assembly is arranged in the gearbox assembly and provided with a shifting fork body capable of sliding in the gear shifting direction. The middle transmission assembly is arranged in the gearbox assembly and connected with the shifting fork assembly. The middle transmission assembly is used for driving the shifting fork body to slide in the gear shifting direction. A gear shifting actuator in the gearbox assembly is used for being in transmission connection with the intermediate transmission assembly. According to the gear shifting module, the gear shifting circuit is shortened through the middle transmission assembly, the structural strength of the whole gear shifting circuit is improved, the positioning deviation of the gear shifting position is effectively avoided, the faults such as out-of-gear and clamping stagnation are avoided, the gear shifting module is more stable and reliable, and the user operation experience is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transmission equipment, and particularly relates to a gear shifting module, a gearbox assembly and a working machine. BACKGROUND

[0002] In recent years, with the rapid development of agricultural machinery towards high efficiency and intelligence, the working capacity and operation quality demand of the agricultural machinery are significantly improved. In order to meet the differentiated requirements of the power output in various operation scenes (such as deep plowing, seeding, harvesting, etc.) in complex agricultural environments, the design of the gearbox of the agricultural machinery tends to be a structure scheme with multiple gears and a large speed ratio range.

[0003] However, in order to realize the multi-gear function and adapt to the high-power power system, the gearbox usually adopts a multi-shaft type and a nested type layout, which leads to an increase in the overall structure size and a lengthening of the transmission chain. This design feature increases the driving path of the gear shifting actuator (such as a shift fork and a synchronizer), and the problem of a too long gear shifting line is increasingly prominent. Specifically, it is easy to cause a gear shifting position positioning deviation, and even cause a gear shifting failure, a gear jamming and the like, which seriously affects the operation stability and the operation experience.

[0004] In the prior art, local improvement measures are usually adopted to optimize the gear shifting precision, for example, by optimizing the shape of a guide groove of a gear shifting fork, adding a spring return mechanism or using a high-precision sensor to detect a gear position state. However, such a scheme is limited by the inherent defects of the overall layout of the gearbox, is difficult to shorten the gear shifting force transmission path from the root, and may further aggravate the structural complexity due to the increase in additional components. CONTENT OF THE UTILITY MODEL

[0005] The application aims to provide a gear shifting module, a gearbox assembly and a working machine, which are used to solve the problem of a gear shifting position positioning deviation caused by a too long gear shifting line in the prior art.

[0006] In order to achieve the above-mentioned purpose, the first aspect of the application provides a gear shifting module applied to a gearbox assembly, which comprises:

[0007] a shift fork assembly arranged in the gearbox assembly, the shift fork assembly having a shift fork body which is slidable in a gear shifting direction; and

[0008] an intermediate transmission assembly arranged in the gearbox assembly and connected to the shift fork assembly, the intermediate transmission assembly being used to drive the shift fork body to slide in the gear shifting direction.

[0009] The gear shifting actuator in the gearbox assembly is used to be in transmission connection with the intermediate transmission assembly.

[0010] As a further improvement of the above-mentioned technical solution:

[0011] In some embodiments, the shift fork assembly further comprises a first shift fork shaft fixedly arranged in the gearbox assembly, an axis direction of the first shift fork shaft being consistent with the shift direction, and at least one of the shift fork bodies being sleeved on the first shift fork shaft in a sliding manner.

[0012] The intermediate transmission assembly is arranged in the gearbox assembly in a sliding manner along the shift direction and connected with the corresponding shift fork body.

[0013] In some embodiments, the intermediate transmission assembly comprises:

[0014] a second shift fork shaft arranged in the gearbox assembly in a sliding manner along the shift direction;

[0015] a shift lever having one end fixedly connected with the second shift fork shaft and the other end fixedly connected with the shift fork body;

[0016] The shift lever is provided with a connecting sleeve for transmission connection with the shift actuator.

[0017] In some embodiments, the intermediate transmission assembly comprises:

[0018] a second shift fork shaft arranged in the gearbox assembly in a sliding manner along the shift direction;

[0019] a shift lever having one end fixedly connected with the second shift fork shaft and the other end fixedly connected with the shift fork body; and

[0020] a connecting sleeve arranged on the second shift fork shaft for transmission connection with the shift actuator.

[0021] In some embodiments, the shift module further comprises a self-locking mechanism for limiting axial movement of the second shift fork shaft under no external force.

[0022] In some embodiments, the shift fork assembly further comprises a first shift fork shaft arranged in the gearbox assembly in a sliding manner along the shift direction, an axis direction of the first shift fork shaft being consistent with the shift direction, and the shift fork body being fixedly arranged on the first shift fork shaft.

[0023] The intermediate transmission assembly comprises a second shift fork shaft fixedly arranged in the gearbox assembly and a shift lever having one end connected with the second shift fork shaft in a sliding manner through a connecting sleeve and the other end fixedly connected with the shift fork assembly.

[0024] The connecting sleeve is in transmission connection with the shift actuator.

[0025] In some embodiments, the shift module further comprises a self-locking mechanism for limiting axial movement of the first shift fork shaft under no external force.

[0026] In some embodiments, the intermediate transmission assembly is detachably connected with the shift fork body.

[0027] The second aspect of the present application further provides a gearbox assembly comprising a shift actuator and the shift module according to the first aspect.

[0028] The third aspect of the present application further provides a working machine comprising the gearbox assembly according to the second aspect.

[0029] Compared with the prior art, the present application provides a shift module, a gearbox assembly and a working machine, which have the following beneficial effects:

[0030] The shift module provided by the present application drives the shift fork body to slide through the intermediate transmission assembly, and the shift actuator in the gearbox assembly is in transmission connection with the intermediate transmission assembly. In this way, when the shift fork body is driven to engage gears, the shift actuator first transmits power to the intermediate transmission assembly, and then the intermediate transmission assembly drives the shift fork body to slide in the shift direction, so as to achieve gear engagement. The shift actuator indirectly drives the shift fork body through the intermediate transmission assembly, compared with the shift actuator directly driving the shift fork body, the shift line is shortened, especially in a large gearbox assembly, the shift line is shortened through the intermediate transmission assembly, the structural strength of the entire shift line itself is improved, the shift position positioning deviation is effectively avoided, gear disengagement, jamming and other faults are avoided, it is more stable and reliable, and the user operation experience is improved.

[0031] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0033] Figure 1 A perspective structural schematic view of a first shift module provided by the embodiments of the present application;

[0034] Figure 2 A perspective structural schematic view of a second shift module provided by the embodiments of the present application;

[0035] Figure 3 A perspective structural schematic view of a third shift module provided by the embodiments of the present application; Figure 2A local enlarged view of the middle A;

[0036] Figure 4 A third perspective view of a shift module according to an embodiment of the present application;

[0037] Figure 5 A perspective view of a gearbox assembly according to an embodiment of the present application;

[0038] Figure 6 A perspective view of a gearbox assembly according to an embodiment of the present application;

[0039] Legend of reference signs

[0040] 100, shift module; 110, shift fork assembly; 111, shift fork body; 112, first shift fork shaft; 1120, second self-locking groove; 120, intermediate transmission assembly; 121, second shift fork shaft; 1210, first self-locking groove; 122, shift lever; 123, connecting sleeve; 130, self-locking mechanism; 131, return member; 132, self-locking ball;

[0041] 200, shift actuator;

[0042] 300, gear engagement sleeve;

[0043] 400, power intermediate shaft; 410, first power gear; 420, second power gear;

[0044] 500, first driven gear;

[0045] 600, second driven gear;

[0046] 700, coupled driven gear. DETAILED DESCRIPTION

[0047] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0048] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0049] Embodiment One

[0050] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 The present embodiment provides a shift module 100, which can be applied to a gearbox assembly.

[0051] Among them, as Figure 5As shown, the gearbox assembly includes a gearbox housing, a shift sleeve 300 and a shift actuator 200. The shift sleeve 300 is arranged in the gearbox housing and is used to engage with the gear in the gearbox housing. The shift actuator 200 is arranged outside the gearbox housing and is used to drive the shift module 100 to perform a shift action.

[0052] The shift module 100 provided by the embodiment includes a shift fork assembly 110 and an intermediate transmission assembly 120. The shift fork assembly 110 is arranged in the gearbox housing of the gearbox assembly. The shift fork assembly 110 has a shift fork body 111 which is slidable in a shift direction. The shift fork body 111 is in clamping engagement with the shift sleeve 300 in the gearbox assembly. The shift fork body 111 can drive the shift sleeve 300 to slide between the gear.

[0053] Optionally, the number of shift fork bodies 111 can be multiple, which is not specifically limited in the embodiment.

[0054] Optionally, the shift sleeve 300 can be a meshing sleeve, a synchronizer or a sliding sleeve. It should be understood that the above is only an example and is not a limitation of the protection scope of the present application.

[0055] Further, the intermediate transmission assembly 120 is arranged in the gearbox assembly and is connected to the shift fork assembly 110. The intermediate transmission assembly 120 is used to drive the shift fork body 111 to slide in the shift direction. The shift actuator 200 in the gearbox assembly is used to be in driving connection with the intermediate transmission assembly 120.

[0056] It should be noted that in a large gearbox assembly, the shift actuator 200 is usually directly connected to drive the shift fork body 111 without any structural transition, which results in an increase in the driving path of the shift actuator 200, thereby easily causing a shift position positioning deviation, even causing a shift out, a stuck and other faults, which seriously affects the operation stability and the operation experience.

[0057] In the present application, the intermediate transmission assembly 120 is used as a transition structure. In particular, in a large gearbox assembly, when the shift fork body 111 is driven to shift, the shift actuator 200 first transmits power to the intermediate transmission assembly 120, and then the intermediate transmission assembly 120 drives the shift fork body 111 to slide in the shift direction to achieve the shift. The shift actuator 200 indirectly drives the shift fork body 111 through the intermediate transmission assembly 120. Compared with the shift actuator 200 directly driving the shift fork body 111, the shift line is shortened, especially in a large gearbox assembly. The intermediate transmission assembly 120 shortens the shift line and improves the structural strength of the entire shift line, effectively avoids the shift position positioning deviation, avoids the shift out, the stuck and other faults, is more stable and reliable, and improves the user operation experience.

[0058] In order to more clearly describe the technical solutions of the present application, the structure of the gear shifting module 100 provided by the present embodiment is described in detail below as follows.

[0059] In the present embodiment, the fork assembly 110 further comprises a first fork shaft 112 fixedly arranged in the transmission case of the transmission assembly, and the axis direction of the first fork shaft 112 is consistent with the gear shifting direction. The fork body 111 is sleeved on the first fork shaft 112 and can slide along the first fork shaft 112.

[0060] The intermediate transmission assembly 120 is arranged in the transmission case of the transmission assembly in the gear shifting direction and is connected with the fork body 111.

[0061] In some embodiments, a plurality of fork bodies 111 can be slidably sleeved on one first fork shaft 112, and each fork body 111 is connected with a corresponding intermediate transmission assembly 120. In this way, when a plurality of gear shifting modules 100 are arranged, the first fork shaft 112 can be shared, which on the one hand facilitates flexible adjustment of the structural layout, and on the other hand reduces the number of first fork shafts 112 used and the occupation of the installation space, and the overall structure is more compact.

[0062] Please refer to Figure 1 In the present embodiment, the intermediate transmission assembly 120 comprises a second fork shaft 121 and a lever 122. The second fork shaft 121 is slidably arranged on the transmission case of the transmission assembly in the axial direction of the first fork shaft 112. One end of the lever 122 is connected with the second fork shaft 121, and the other end is connected with the fork body 111. The lever 122 is provided with a connecting sleeve 123 for transmission connection with the gear shifting actuator 200.

[0063] It can be understood that the connecting sleeve 123 and the second fork shaft 121 are arranged as an integral structure, so that the installation times are reduced, the lever 122 and the connecting sleeve 123 are installed in place at one time, and the installation efficiency is improved.

[0064] Alternatively, the lever 122 and the connecting sleeve 123 are combined into an integral structure or through bolts and screws.

[0065] Please refer to Figure 2 In some embodiments, the intermediate transmission assembly 120 comprises a second fork shaft 121, a lever 122 and a connecting sleeve 123. The second fork shaft 121 is slidably arranged in the transmission case of the transmission assembly in the axial direction of the first fork shaft 112. One end of the lever 122 is connected with the second fork shaft 121, and the other end is connected with the fork body 111. The connecting sleeve 123 is arranged on the second fork shaft 121 for transmission connection with the gear shifting actuator 200.

[0066] It can be understood that the connecting sleeve 123 and the second shift shaft 121 are arranged in a split structure, so that the connecting sleeve 123 can be installed at a suitable position on the second shift shaft 121 according to the overall layout requirements of the gearbox assembly, and is not limited by the position of the shift lever 122, which is more flexible.

[0067] Optionally, the shift lever 122 is detachably connected with the second shift shaft 121 and the shift body 111, so as to facilitate disassembly and installation and subsequent maintenance.

[0068] In this way, through the above scheme, when the gear engagement action is performed, the gear shifter 200 first drives the connecting sleeve 123 to slide together with the second shift shaft 121, and then drives the shift lever 122 to slide the shift body 111 relative to the first shift shaft 112 along the gear shifting direction, so as to engage the gear.

[0069] Please refer to Figure 2 and Figure 3 Further, in the embodiment, the gear shifting module 100 further comprises a self-locking mechanism 130 for limiting the axial movement of the second shift shaft 121 under the action of no external force.

[0070] It can be understood that after the second shift shaft 121 moves axially by a preset gear position stroke, the shift lever 122 simultaneously drives the shift body 111 to move the same gear position stroke, so that the shift body 111 is engaged into the corresponding gear position, and at this time the self-locking mechanism 130 self-locks the second shift shaft 121 to limit the axial movement of the second shift shaft 121, and indirectly limits the movement of the shift body 111, thereby ensuring the stability after the gear is engaged and avoiding the problem of gear disengagement during the working process of the gearbox assembly.

[0071] Specifically, the self-locking mechanism 130 comprises a reset member 131 and a self-locking steel ball 132; the self-locking steel ball 132 is arranged at one end of the reset member 131 facing the second shift shaft 121; wherein the second shift shaft 121 is provided with a plurality of first self-locking grooves 1210 matched with the self-locking steel ball 132, each first self-locking groove 1210 corresponds to a different gear position engaged by the shift body 111, and the reset member 131 is used to drive the self-locking steel ball 132 to be clamped into the corresponding first self-locking groove 1210.

[0072] Optionally, the reset member 131 can be selected as a spring or a compression spring.

[0073] Embodiment two

[0074] Please refer to Figure 3 , Figure 4 and Figure 5 The embodiment provides a gear shifting module 100 which can be applied to a gearbox assembly.

[0075] The gearbox assembly includes a gearbox housing, a gearshift sleeve 300, and a gearshift actuator 200. The gearshift sleeve 300 is arranged in the gearbox housing and is used to engage with gearshift gears in the gearbox housing. The gearshift actuator 200 is arranged outside the gearbox housing and is used to drive the gearshift module 100 to perform gearshift actions.

[0076] The gearshift module 100 provided in the embodiment includes a shift fork assembly 110 and an intermediate transmission assembly 120. The shift fork assembly 110 is arranged in the gearbox housing of the gearbox assembly. The shift fork assembly 110 has a shift fork body 111 that is slidable in a gearshift direction. The shift fork body 111 is in clamping engagement with the gearshift sleeve 300 in the gearbox assembly. The shift fork body 111 can drive the gearshift sleeve 300 to slide between gearshift gears.

[0077] Optionally, the number of shift fork bodies 111 can be multiple, which is not specifically limited in the embodiment.

[0078] Optionally, the gearshift sleeve 300 can be replaced by a synchronizer or a sliding sleeve.

[0079] Further, the intermediate transmission assembly 120 is arranged in the gearbox assembly and is connected to the shift fork assembly 110. The intermediate transmission assembly 120 is used to drive the shift fork body 111 to slide in the gearshift direction. The gearshift actuator 200 in the gearbox assembly is used to be in transmission connection with the intermediate transmission assembly 120.

[0080] It should be noted that in a large gearbox assembly, the gearshift actuator 200 is usually directly connected to the shift fork body 111 without any intermediate structure, which leads to an increase in the driving path of the gearshift actuator 200, thereby easily causing gearshift position positioning deviation, even causing gearshift failure, such as gearshift disengagement and gearshift jamming, which seriously affects the operation stability and the operation experience.

[0081] In the present application, the intermediate transmission assembly 120 is used as an intermediate structure, especially in a large gearbox assembly. When the shift fork body 111 is driven to gearshift, the gearshift actuator 200 first transmits power to the intermediate transmission assembly 120, and then the intermediate transmission assembly 120 drives the shift fork body 111 to slide in the gearshift direction to realize gearshift. The gearshift actuator 200 indirectly drives the shift fork body 111 through the intermediate transmission assembly 120. Compared with the gearshift actuator 200 directly driving the shift fork body 111, the gearshift line is shortened. Especially in a large gearbox assembly, the gearshift line is shortened through the intermediate transmission assembly 120, the structural strength of the entire gearshift line is improved, the gearshift position positioning deviation is effectively avoided, the gearshift failure, such as gearshift disengagement and gearshift jamming, is avoided, and the operation experience of the user is improved.

[0082] In order to more clearly describe the technical solutions of the present application, the structure of the gear shifting module 100 provided by the present embodiment is described in detail below as follows.

[0083] In the present embodiment, the fork assembly 110 further comprises a first fork shaft 112 which is slidingly arranged in the gearbox housing of the gearbox assembly along the gear shifting direction, the axis direction of the first fork shaft 112 is consistent with the gear shifting direction, and the fork body 111 is fixedly arranged on the first fork shaft 112. In this way, the fork body 111 can move along the axis direction of itself with the first fork shaft 112.

[0084] The intermediate transmission assembly 120 is fixedly arranged in the gearbox housing of the gearbox assembly and connected with the fork body 111 or the first fork shaft 112.

[0085] In the present embodiment, the intermediate transmission assembly 120 comprises a second fork shaft 121 and a lever 122; the second fork shaft 121 is fixedly arranged on the gearbox housing of the gearbox assembly, and the axis direction of the second fork shaft 121 is parallel to the axis direction of the first fork shaft 112. One end of the lever 122 is slidingly sleeved on the second fork shaft 121 through a connecting sleeve 123, and the other end is connected with the fork body 111 or the first fork shaft 112. The connecting sleeve 123 is in transmission connection with the gear shifting actuator 200.

[0086] In this way, through the above-mentioned scheme, when the gear engagement action is performed, the gear shifting actuator 200 first drives the connecting sleeve 123 to slide along the second fork shaft 121, and then the connecting sleeve 123 drives the fork body 111 and the first fork shaft 112 to slide along the gear shifting direction through the lever 122, so as to engage the gear.

[0087] Optionally, the lever 122 is detachably connected with the second fork shaft 121 and the fork body 111, so as to facilitate the disassembly and installation and subsequent maintenance and replacement.

[0088] Further, in the present embodiment, the gear shifting module 100 further comprises a self-locking mechanism 130 which is used to limit the axial movement of the second fork shaft 121 under the action of no external force.

[0089] It can be understood that after the connecting sleeve 123 moves along the axis direction by a preset gear shifting stroke, the first fork shaft 112 and the fork body 111 are simultaneously driven by the lever 122 to move the same gear shifting stroke, so that the fork body 111 is engaged into the corresponding gear position, at this time, the self-locking mechanism 130 self-locks the first fork shaft 112 to limit the axial movement of the first fork shaft 112, and indirectly limits the movement of the fork body 111, thereby ensuring the stability after the gear engagement and avoiding the problem of gear disengagement during the working process of the gearbox assembly.

[0090] Specifically, the self-locking mechanism 130 also includes a reset member 131 and a self-locking ball 132; the self-locking ball 132 is arranged at one end of the reset member 131 facing the first shift fork shaft 112; wherein the first shift fork shaft 112 is provided with a plurality of second self-locking grooves 1120 adapted to the self-locking ball 132, each second self-locking groove 1120 corresponds to a different gear engaged by the shift fork body 111, and the reset member 131 is used to drive the self-locking ball 132 to be clamped into the corresponding second self-locking groove 1120.

[0091] Optionally, the reset member 131 can be a spring or a compression spring.

[0092] Embodiment three

[0093] Please refer to Figure 5 and Figure 6 , the embodiment provides a gearbox assembly which can be applied to working machines. The gearbox assembly includes a gear engagement sleeve 300, a gear shifting actuator 200 and a gear shifting module 100 provided according to the above-mentioned embodiment one or embodiment two.

[0094] In this embodiment, the gear shifting module 100 can be provided with multiple, each gear shifting module 100 can correspond to perform different gear engagement. This embodiment takes two gear shifting modules 100 as an example, wherein the first gear shifting module 100 is used to perform gear engagement of first gear and second gear. The second gear shifting module 100 is used to perform gear engagement of coupling gear.

[0095] In the gearbox assembly, a power input power intermediate shaft 400 is also arranged in the gearbox housing, the power intermediate shaft 400 is provided with a first power gear 410 corresponding to the first gear shifting module 100, and a first driven gear 500 and a second driven gear 600 are arranged on both sides of the first power gear 410; a second power gear 420 is arranged corresponding to the second gear shifting module 100, and a coupling driven gear 700 is arranged on one side of the second power gear 420.

[0096] In this way, when the first gear is engaged, the gear engagement sleeve 300 fits the first power gear 410 and the first driven gear 500 at the same time. When the second gear is engaged, the gear engagement sleeve 300 fits the first power gear 410 and the second driven gear 600 at the same time. When the coupling gear is engaged, the gear engagement sleeve 300 fits the second power gear 420 and the coupling driven gear 700 at the same time.

[0097] The shift fork bodies 111 in the two gear shifting modules 100 can share the fixed first shift fork shaft 112 or the second shift fork shaft 121, so it is easy to adjust the structure.

[0098] Further, the embodiment also provides a working machine, which includes the gearbox assembly provided above. Of course, the working machine can also be used for agricultural working machines.

[0099] It should be noted that, in the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0100] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0101] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0102] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0103] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A shift module, characterized in that, Applied to a gearbox assembly, the shift module (100) comprises: a shift fork assembly (110) arranged in the gearbox assembly, the shift fork assembly (110) having a shift fork body (111) slidable in a shift direction; and an intermediate transmission assembly (120) arranged in the gearbox assembly and connected to the shift fork assembly (110), the intermediate transmission assembly (120) being configured to drive the shift fork body (111) to slide in the shift direction; wherein a shift actuator (200) in the gearbox assembly is configured to be in driving connection with the intermediate transmission assembly (120).

2. The shift module according to claim 1, characterized in that The shift fork assembly (110) further comprises a first shift fork shaft (112) fixedly arranged in the gearbox assembly, an axis direction of the first shift fork shaft (112) being consistent with the shift direction, and at least one shift fork body (111) being sleeved on the first shift fork shaft (112), the shift fork body (111) being in sliding fit with the first shift fork shaft (112). The intermediate transmission assembly (120) is arranged in the gearbox assembly in sliding fit in the shift direction and connected to the corresponding shift fork body (111).

3. The shift module according to claim 2, characterized in that The intermediate transmission assembly (120) comprises: a second shift fork shaft (121) arranged in the gearbox assembly in sliding fit in the shift direction; a shift lever (122) having one end fixedly connected to the second shift fork shaft (121) and the other end fixedly connected to the shift fork body (111); wherein the shift lever (122) is provided with a connecting sleeve (123) in driving connection with the shift actuator (200).

4. The shift module of claim 2, wherein, The intermediate transmission assembly (120) comprises: a second shift fork shaft (121) arranged in the gearbox assembly in sliding fit in the shift direction; a shift lever (122) having one end fixedly connected to the second shift fork shaft (121) and the other end fixedly connected to the shift fork body (111); and a connecting sleeve (123) arranged on the second shift fork shaft (121) and in driving connection with the shift actuator (200).

5. The shift module according to claim 3 or 4, characterized in that The shift module (100) further comprises a self-locking mechanism (130) configured to limit axial movement of the second shift fork shaft (121) under no external force.

6. The shift module of claim 1, wherein The shift fork assembly (110) further comprises a first shift fork shaft (112) arranged in the gearbox assembly in sliding fit in the shift direction, an axis direction of the first shift fork shaft (112) being consistent with the shift direction, and the shift fork body (111) being fixedly arranged on the first shift fork shaft (112). The intermediate transmission assembly (120) comprises a second shift fork shaft (121) and a shift lever (122), the second shift fork shaft (121) being fixedly arranged in the gearbox assembly, and the shift lever (122) being in sliding connection with the second shift fork shaft (121) through a connecting sleeve (123) at one end and fixedly connected to the shift fork assembly (110) at the other end. The connecting sleeve (123) is in transmission connection with the gear shift actuator (200).

7. The shift module according to claim 6, characterized in that The gear shift module (100) further comprises a self-locking mechanism (130) for limiting axial movement of the first shift fork shaft (112) under no external force.

8. The shift module according to any one of claims 1-4 or 6-7, characterized in that, The intermediate transmission assembly (120) is detachably connected with the shift fork body (111).

9. A transmission assembly characterized by, A gear shift assembly comprising a gear shift actuator (200) and a gear shift module (100) according to any one of claims 1-8.

10. A work machine characterized by, A gearbox assembly according to claim 8.

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