Inter-axle differential and engineering machine

Abstract

The utility model belongs to the technical field of engineering machinery, especially relates to an axle differential and engineering machinery. Axle differential includes deceleration subassembly, first output shaft, second output shaft, poking piece and brake piece, and deceleration subassembly includes input piece, first output piece and second output piece, first output shaft can selectively combine or separate with first output piece, first output shaft can selectively combine or separate with second output piece, and second output shaft is connected with second output piece, poking piece sets up in first output shaft and can drive first output shaft moves along the axial movement to make first output shaft have first position, second position and third position, brake piece can carry out brake to first output shaft. Through the different state combination of poking piece and brake, can realize differential, lock, neutral gear / power interruption, double speed / bridge breaking function, increase the function of axle differential, and the use scene of axle differential is enriched.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to an inter-shaft differential and engineering machinery. Background Technology

[0002] Inter-axle differentials adjust the torque distribution between the front and rear drive axles to ensure smooth operation of the vehicle when cornering or driving on uneven surfaces. In related technologies, the clutch in the inter-axle differential can engage or disengage the two output shafts. When the clutch engages, the two output shafts are locked; when the clutch disengages, the two output shafts are in a differential state. However, inter-axle differentials in these technologies only provide differential and locking functions, offering limited functionality. Utility Model Content

[0003] The purpose of this utility model is to provide an inter-axle differential and engineering machinery. The inter-axle differential can realize functions such as differential, locking, neutral / power interruption, speed doubling / disengagement, etc., thus increasing the functionality of the inter-axle differential.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] The deceleration assembly includes an input component, a first output component, and a second output component;

[0006] A first output shaft and a second output shaft, wherein the first output shaft can be selectively coupled to or detached from the first output component, and the first output shaft can also be selectively coupled to or detached from the second output component, and the second output shaft is connected to the second output component;

[0007] An actuating element is disposed on the first output shaft and is capable of driving the first output shaft to move axially, so that the first output shaft has a first position, a second position, and a third position. When the first output shaft is in the first position, the first output shaft is engaged with the first output component and disengaged from the second output component; when the first output shaft is in the second position, the first output shaft is engaged with the first output component and disengaged from the second output component; when the first output shaft is in the third position, the first output shaft is disengaged from the first output component and disengaged from the second output component.

[0008] The braking component is capable of braking the first output shaft.

[0009] As a preferred technical solution for an inter-shaft differential, the reduction assembly includes a sun gear, planet gears, a planet carrier, and a ring gear, wherein the planet carrier is the input component, the sun gear is the first output component, and the ring gear is the second output component.

[0010] As a preferred technical solution for the inter-shaft differential, the reduction assembly includes a first gear, a second gear, and a third gear. The second gear and the third gear both mesh with the first gear. The first gear is the input component, the second gear is the first output component, and the third gear is the second output component.

[0011] As a preferred technical solution for the inter-shaft differential, the first output component is provided with a first connecting part, the first connecting part is provided with a first through hole, and the first output shaft is provided with a first insertion part, the first insertion part being able to be inserted into the first through hole so that the first output shaft is connected to the first output component.

[0012] As a preferred technical solution for the inter-shaft differential, the second output component is provided with a second connecting part, the second connecting part is provided with a second through hole, the second output shaft is provided with a second insertion part, the second insertion part is inserted into the second through hole, and a portion of the first insertion part can pass through the first through hole and be inserted into the second through hole, so that the first output shaft and the second output component are connected.

[0013] As a preferred technical solution for inter-shaft differentials, the first output shaft and the second output shaft are coaxially arranged.

[0014] As a preferred technical solution for inter-axle differentials, the braking component is connected to the first output component via a connecting shaft.

[0015] As a preferred technical solution for the inter-shaft differential, the connecting shaft is provided with an axially through central hole, and the first output shaft passes through the central hole.

[0016] As a preferred technical solution for the inter-axle differential, it also includes a housing, and the reduction assembly is disposed within the housing.

[0017] Construction machinery, including inter-axle differentials as described in any of the above schemes.

[0018] The beneficial effects of this utility model are:

[0019] The inter-axle differential provided by this utility model can realize functions such as differential, locking, neutral / power interruption, speed multiplication / disengagement through different combinations of the toggle and brake states, thereby increasing the functionality of the inter-axle differential and enriching its application scenarios. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the principle of an inter-shaft differential provided in one embodiment of the present invention;

[0021] Figure 2This is a schematic diagram of the principle of an inter-shaft differential provided in another embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram illustrating the principle of the inter-shaft differential in the inter-shaft differential state according to another embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram illustrating the principle of the inter-shaft differential in an inter-shaft locked state according to another embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram illustrating the principle of the inter-axle differential in parking brake mode according to another embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram illustrating the principle of the inter-shaft differential in neutral / power interruption state according to another embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram illustrating the principle of the inter-shaft differential in a double-speed / disconnected-bridge state according to another embodiment of the present invention.

[0027] In the picture:

[0028] 10. Reduction gear assembly; 11. Sun gear; 12. Planet gear; 13. Planet carrier; 14. Ring gear; 15. First gear; 16. Second gear; 17. Third gear; 18. First engagement part; 19. Second engagement part; 20. First output shaft; 21. First insertion part; 30. Second output shaft; 40. Actuator; 50. Brake; 60. Connecting shaft. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figure 1 and Figure 2 As shown, this utility model embodiment provides an inter-shaft differential, including a reduction assembly 10, a first output shaft 20, a second output shaft 30, a toggle member 40, and a brake member 50. The reduction assembly 10 includes an input member, a first output member, and a second output member. The first output shaft 20 can selectively engage or disengage with the first output member, and the first output shaft 20 can also selectively engage or disengage with the second output member. The second output shaft 30 is connected to the second output member. The toggle member 40 is disposed on the first output shaft 20 and can drive the first output shaft 20 to move axially, thereby causing the first output shaft 30 to move axially. The output shaft 20 has a first position, a second position, and a third position. When the first output shaft 20 is in the first position, the first output shaft 20 is engaged with the first output component and disengaged from the second output component. When the first output shaft 20 is in the second position, the first output shaft 20 is engaged with the first output component and disengaged from the second output component. When the first output shaft 20 is in the third position, the first output shaft 20 is disengaged from the first output component and disengaged from the second output component. The braking component 50 can brake the first output shaft 20.

[0034] In some embodiments, refer to Figure 1 The reduction gear assembly 10 is a planetary gear set, including a sun gear 11, planet gears 12, a planet carrier 13, and a ring gear 14. The planet carrier 13 is the input component, the sun gear 11 is the first output component, and the ring gear 14 is the second output component. In some embodiments, refer to... Figure 2The reduction assembly 10 is a gear assembly, including a first gear 15, a second gear 16 and a third gear 17. The second gear 16 and the third gear 17 both mesh with the first gear 15. The first gear 15 is an input component, the second gear 16 is a first output component, and the third gear 17 is a second output component.

[0035] The following explanation uses a gear assembly as an example to illustrate the functional modes of an inter-shaft differential.

[0036] like Figure 3 As shown, when the actuating element 40 is in the first position A and the brake is not applied, the first output shaft 20 and the second output shaft 30 operate at different speeds; as Figure 4 As shown, when the actuating element 40 is in the second position B and the brake is not applied, the first output shaft 20 and the second output shaft 30 are locked; as Figure 5 As shown, when the actuating element 40 is in the second position B and the brake is applied, the inter-axle differential achieves parking braking; as Figure 6 As shown, when the actuating element 40 is in the third position C and the brake is not applied, the inter-axle differential achieves neutral / power interruption; as Figure 7 As shown, when the actuating element 40 is in the third position C and the brake is applied, the inter-shaft differential achieves double speed / disengagement.

[0037] The inter-axle differential provided by this utility model can realize functions such as differential, locking, neutral / power interruption, speed multiplication / disengagement through different state combinations of the toggle member 40 and the brake, thereby increasing the functionality of the inter-axle differential and enriching its application scenarios.

[0038] In some embodiments, refer to Figures 3 to 7 The first output component has a first connecting portion 18 with a first through hole. The first output shaft 20 has a first insertion portion 21 that can be inserted into the first through hole, so that the first output shaft 20 is connected to the first output component. Further, the second output component has a second connecting portion 19 with a second through hole. The second output shaft 30 has a second insertion portion that is inserted into the second through hole. A portion of the first insertion portion 21 can extend out of the first through hole and insert into the second through hole, so that the first output shaft 20 is connected to the second output component. (See reference...) Figure 3 When the first output shaft 20 is in the first position, the first insertion part 21 is inserted into the first through hole but not into the second through hole. At this time, the first output shaft 20 is engaged with the first output component, but the first output shaft 20 is not engaged with the second output component; see reference. Figure 4 and Figure 5When the first output shaft 20 is in the second position, the first insertion part 21 is simultaneously inserted into the first through hole and the second through hole. At this time, the first output shaft 20 is engaged with the first output component, and the first output shaft 20 is also engaged with the second output component; see reference. Figure 6 and Figure 7 When the first output shaft 20 is in the third position, the first insertion part 21 is neither inserted into the first through hole nor into the second through hole. At this time, the first output shaft 20 is separated from the first output component and the first output shaft 20 is separated from the second output component.

[0039] In some embodiments, the first output shaft 20 and the second output shaft 30 are coaxially arranged. In some embodiments, the brake member 50 is connected to the first output member via a connecting shaft 60. Furthermore, the connecting shaft 60 is provided with an axially through-hole, through which the first output shaft 20 passes. These features make the overall structure simpler and more rational.

[0040] The inter-shaft differential provided by this utility model also includes a housing, and the reduction assembly 10 is disposed inside the housing to protect the reduction assembly 10.

[0041] This utility model also provides a type of construction machinery, including the aforementioned inter-axle differential. By employing the aforementioned inter-axle differential, functions such as differential speed, locking, neutral / power interruption, and speed multiplication / disengagement can be achieved, simplifying the overall structure of the construction machinery.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An inter-shaft differential, characterized in that, include: The deceleration assembly (10) includes an input component, a first output component, and a second output component; A first output shaft (20) and a second output shaft (30), wherein the first output shaft (20) can be selectively coupled to or separated from the first output component, and the first output shaft (20) can also be selectively coupled to or separated from the second output component, and the second output shaft (30) is connected to the second output component; An actuating element (40) is disposed on the first output shaft (20) and is capable of driving the first output shaft (20) to move axially, so that the first output shaft (20) has a first position, a second position and a third position. When the first output shaft (20) is in the first position, the first output shaft (20) is engaged with the first output member and the first output shaft (20) is disengaged from the second output member; when the first output shaft (20) is in the second position, the first output shaft (20) is engaged with the first output member and the first output shaft (20) is engaged with the second output member; when the first output shaft (20) is in the third position, the first output shaft (20) is disengaged from the first output member and the first output shaft (20) is disengaged from the second output member. The braking element (50) is capable of braking the first output shaft (20).

2. The inter-shaft differential according to claim 1, characterized in that, The reduction assembly (10) includes a sun gear (11), planet gears (12), a planet carrier (13), and a ring gear (14). The planet carrier (13) is the input component, the sun gear (11) is the first output component, and the ring gear (14) is the second output component.

3. The inter-shaft differential according to claim 1, characterized in that, The deceleration assembly (10) includes a first gear (15), a second gear (16) and a third gear (17). The second gear (16) and the third gear (17) both mesh with the first gear (15). The first gear (15) is the input component, the second gear (16) is the first output component, and the third gear (17) is the second output component.

4. The inter-shaft differential according to claim 1, characterized in that, The first output component is provided with a first connecting part (18), the first connecting part (18) is provided with a first through hole, and the first output shaft (20) is provided with a first insertion part (21). The first insertion part (21) can be inserted into the first through hole so that the first output shaft (20) is connected to the first output component.

5. The inter-shaft differential according to claim 4, characterized in that, The second output component is provided with a second connecting part (19), the second connecting part (19) is provided with a second through hole, the second output shaft (30) is provided with a second insertion part, the second insertion part is inserted into the second through hole, and a portion of the first insertion part (21) can pass through the first through hole and be inserted into the second through hole so that the first output shaft (20) is connected to the second output component.

6. The inter-shaft differential according to any one of claims 1-5, characterized in that, The first output shaft (20) and the second output shaft (30) are coaxially arranged.

7. The inter-shaft differential according to any one of claims 1-5, characterized in that, The braking element (50) is connected to the first output element via a connecting shaft (60).

8. The inter-shaft differential according to claim 7, characterized in that, The connecting shaft (60) is provided with an axially through central hole, through which the first output shaft (20) passes.

9. The inter-shaft differential according to any one of claims 1-5, characterized in that, It also includes a housing, in which the deceleration assembly (10) is disposed.

10. Construction machinery, characterized in that, Including the inter-axle differential as described in any one of claims 1-9.

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