Caliper disc, differential mechanism assembly and automobile

Abstract

The utility model provides a caliper disc, a differential mechanism assembly and an automobile. The first caliper disc comprises a first main body, a first bulge and a first combination tooth which extend from a first end surface of the first main body along the axial direction of the first main body, and a second combination tooth which extends from the first bulge along the radial direction of the first main body; the first combining teeth are used for being combined with or disconnected from combining teeth of a first workpiece; the second combination teeth are used for being combined with or disconnected from combination teeth of a second workpiece, and a first avoiding space used for avoiding the combination teeth of the second workpiece is formed between the second combination teeth and the first combination teeth. According to the utility model, the first combination teeth are used for being combined with or disconnected from the combination teeth of the first workpiece, the second combination teeth are used for being combined with or disconnected from the combination teeth of the second workpiece, switching of at least three functions can be realized according to the state combination of the two groups of combination teeth, and the integration level can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of differential assemblies, in particular to a caliper, a differential assembly and a car. Background Art

[0002] A caliper is a disc-shaped component with specific teeth or protrusions. It connects and disconnects with other matching components to transmit and interrupt power. It is used in many devices, such as differential assemblies. Existing calipers can only connect and disconnect with a single workpiece, switching between two functions, and cannot meet the needs of multiple switching functions. Summary of the Invention

[0003] The utility model provides a caliper, a differential assembly and a car, so as to solve the problem that the existing caliper cannot meet the use requirements of multiple function switching.

[0004] A pliers disc comprises a first body, a first protrusion and a first coupling tooth extending from a first end surface of the first body in an axial direction of the first body, and a second coupling tooth extending from the first protrusion in a radial direction of the first body;

[0005] The first engaging teeth are used to engage with or disconnect from the engaging teeth of the first workpiece;

[0006] The second combining tooth is used to combine with or disconnect from the combining tooth of the second workpiece, and a first avoidance space for avoiding the combining tooth of the second workpiece is formed between the second combining tooth and the first combining tooth.

[0007] Preferably, when the first clamp is located at the first position, the first engaging teeth are disconnected from the engaging teeth of the first workpiece, and the second engaging teeth are disconnected from the engaging teeth of the second workpiece;

[0008] When the first clamp is located at the second position, the first engaging teeth are disconnected from the engaging teeth of the first workpiece, and the second engaging teeth are engaged with the engaging teeth of the second workpiece;

[0009] When the first clamp is located at the third position, the first engaging teeth engage with the engaging teeth of the first workpiece, and the second engaging teeth engage with the engaging teeth of the second workpiece;

[0010] When the first clamp is located at the fourth position, the first engaging teeth are engaged with the engaging teeth of the first workpiece, and the second engaging teeth are disconnected from the engaging teeth of the second workpiece.

[0011] Preferably, the first clamp disc further comprises a mounting body extending from the second end surface of the first body along the axial direction of the first body, and the mounting body is used to connect with a structure to be mounted.

[0012] Preferably, the mounting body includes a plurality of mounting portions, and the plurality of mounting portions are arranged at intervals along the circumferential direction.

[0013] A second pliers disc comprises a pliers disc housing and a third protrusion extending from a first end surface of the pliers disc housing in the axial direction of the pliers disc housing, wherein the third protrusion has a third engaging tooth extending in the radial direction of the pliers disc housing, the third engaging tooth being configured to engage with or disengage from an engaging tooth of a third workpiece;

[0014] The clamp housing is used to mount the first workpiece so that the engaging teeth of the first workpiece can be engaged with or separated from another engaging tooth of the third workpiece;

[0015] A second avoidance space for avoiding a combining tooth of the third workpiece is formed between the third combining tooth and the clamp housing.

[0016] Preferably, when the third workpiece is located at the first position, another coupling tooth of the third workpiece is disconnected from the coupling tooth of the first workpiece, and one coupling tooth of the third workpiece is disconnected from the third coupling tooth;

[0017] When the third workpiece is located at the second position, the other coupling tooth of the third workpiece is disconnected from the coupling tooth of the first workpiece, and the one coupling tooth of the third workpiece is coupled with the third coupling tooth;

[0018] When the third workpiece is located at the third position, another coupling tooth of the third workpiece is coupled with the coupling tooth of the first workpiece, and one coupling tooth of the third workpiece is coupled with the third coupling tooth;

[0019] When the third workpiece is located at the fourth position, another coupling tooth of the third workpiece is coupled with the coupling tooth of the first workpiece, and one coupling tooth of the third workpiece is disconnected from the third coupling tooth.

[0020] Preferably, the second pliers disc further comprises a fourth engaging tooth extending from the second end surface of the pliers disc housing along the axial direction of the pliers disc housing;

[0021] The fourth coupling teeth are used to couple with or disconnect from the coupling teeth of the fourth workpiece.

[0022] Preferably, the caliper housing includes a first supporting portion, an arc-shaped portion extending from one end of the first supporting portion in the axial direction, and a second supporting portion extending from one end of the arc-shaped portion in the axial direction;

[0023] The arc portion cooperates with the second supporting portion to form an accommodating space for mounting the first workpiece;

[0024] The third protrusion is provided on the second supporting portion, and the fourth combining tooth is provided on the first supporting portion.

[0025] A differential assembly includes a gear assembly, the first caliper plate and the second caliper plate;

[0026] The gear assembly is disposed in the second pliers disc;

[0027] The first pliers disc is movably disposed on a first side of the second pliers disc in an axial direction, and is coupled to or disconnected from the second pliers disc and / or the gear assembly.

[0028] Preferably, the differential assembly further comprises a differential housing and a differential end cover; the differential housing and the differential end cover are arranged opposite to each other in the axial direction, and the differential end cover is connected to the differential housing;

[0029] The second caliper disc is rotatably mounted in the differential housing, and the first caliper disc is movably mounted in the differential end cover.

[0030] Preferably, the differential assembly further comprises a locking toothed caliper disc, which is movably arranged on the second side of the second caliper disc in the axial direction and is coupled to or disconnected from the second caliper disc.

[0031] Preferably, the locking tooth pliers disc includes a second body and a sixth engaging tooth extending from one side of the second body in an axial direction;

[0032] The sixth engaging tooth is used to engage with or disconnect from the fourth engaging tooth of the second clamp disc.

[0033] Preferably, the differential assembly further comprises a first half-shaft and a second half-shaft;

[0034] The first half shaft is disposed in the differential end cover and is connected to the first side of the gear assembly;

[0035] The second half shaft is sequentially arranged in the locking caliper plate and the differential housing, and is connected to the second side of the gear assembly.

[0036] Preferably, the gear assembly comprises a planet shaft, two planet gears, a first side gear and a second side gear;

[0037] The planet shaft is arranged in the second clamp disc along the radial direction;

[0038] The two planetary gears are arranged on the planetary shaft at intervals;

[0039] The first side shaft gear is connected to the first side shaft, and the first side shaft gear is meshed with the first sides of the two planetary gears;

[0040] The second half-shaft gear is connected to the second half-shaft, and the second half-shaft gear is engaged with the second sides of the two planetary gears. The second half-shaft gear is provided with a fifth combining tooth, and the fifth combining tooth is used to combine with or separate from the first combining tooth of the first clamp disk.

[0041] Preferably, a first guide groove is provided on the inner wall of the second clamp disc, and a first guide protrusion is provided on the first side gear, and the first guide protrusion matches the first guide groove;

[0042] A second guide groove is provided on the inner wall of the differential end cover, and a second guide protrusion is provided on the second side gear, and the second guide protrusion matches the second guide groove.

[0043] Preferably, the differential assembly further includes a main reduction power gear;

[0044] The main reduction gear is sleeved outside the differential housing and the differential end cover, and is connected to the differential housing and the differential end cover.

[0045] Preferably, the differential assembly further comprises an execution structure; the execution structure is connected to the first caliper disc and / or the locking tooth caliper disc, and is used to adjust the position of the first caliper disc and / or the locking tooth caliper disc.

[0046] Preferably, the execution structure includes two execution components; one execution component is provided on the differential end cover and is used to connect with the first caliper;

[0047] Another of the actuator components is arranged on the reduction gear housing and is used for connecting with the locking jaw disc.

[0048] Preferably, the actuator assembly includes an electromagnetic clutch and an elastic member;

[0049] In one of the actuator components, the electromagnetic clutch is provided on the differential end cover and is used to connect with the first caliper disc, one end of the elastic member is connected with the differential end cover, and the other end of the elastic member is connected with the first caliper disc;

[0050] In another of the actuators, the electromagnetic clutch is arranged on the reduction gear housing for connecting with the locking caliper disc, one end of the elastic member is connected with the differential end cover, and the other end of the elastic member is connected with the locking caliper disc.

[0051] Preferably, the actuator further comprises a position sensor; the position sensor of the actuator is arranged on the first clamp;

[0052] The position sensor of the other actuator is arranged on the locking jaw disc.

[0053] Preferably, the electromagnetic clutch comprises a pusher, a magnetic ring and a coil;

[0054] The pushing member includes a pushing plate and a slider; the pushing plate is connected to the first clamp plate or the locking clamp plate, and one end of the slider is connected to the pushing plate; the magnetic ring is connected to the slider;

[0055] The coil is arranged opposite to the magnetic ring and is used to drive the magnetic ring to move.

[0056] Preferably, the execution assembly includes a motor and a worm gear;

[0057] In one of the actuator components, the motor is disposed on the differential end cover, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the first clamp;

[0058] In another of the actuator components, the motor is arranged on the differential housing, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the locking pliers disc.

[0059] An automobile comprises the differential assembly.

[0060] In the above-mentioned caliper, differential assembly, engine and automobile, the first caliper includes a first main body, a first protrusion, a first coupling tooth and a second coupling tooth; the first coupling tooth is used to couple with or disconnect with the coupling tooth of the first workpiece, and a first avoidance space for avoiding the coupling tooth of the second workpiece is formed between the second coupling tooth and the first coupling tooth, and the second coupling tooth is used to couple with or disconnect with the coupling tooth of the second workpiece. According to the state combination of the two groups of coupling teeth, at least three function switches can be realized. Compared with the existing technology that can only realize two function switches, it helps to greatly improve the integration, reduce the number and weight of parts, and is more conducive to structural layout. The structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0062] Figure 1 It is a cross-sectional view of the first clamping disc in one embodiment of the present utility model;

[0063] Figure 2 This is an isometric view of the first clamp disc in one embodiment of the present invention;

[0064] Figure 3 It is a cross-sectional view of the second clamping disc in one embodiment of the present utility model;

[0065] Figure 4 This is an isometric view of the second clamp disc in one embodiment of the present invention;

[0066] Figure 5 This is an isometric view of the second side gear in one embodiment of the present utility model;

[0067] Figure 6 is a cross-sectional view of a differential housing in one embodiment of the present utility model;

[0068] Figure 7 It is a cross-sectional view of a differential end cover in one embodiment of the present utility model;

[0069] Figure 8 This is a diagram of the differential assembly in a disconnected state in one embodiment of the present utility model;

[0070] Figure 9 This is a conventional differential state diagram of a differential assembly in one embodiment of the present utility model;

[0071] Figure 10 This is a diagram of a locked state of a differential assembly in one embodiment of the present utility model;

[0072] Figure 11 This is a diagram of a differential assembly in an on-site U-turn state according to an embodiment of the present invention;

[0073] Figure 12 This is a parking state diagram of the differential assembly in one embodiment of the present utility model.

[0074] Among them, 1. first clamp disc; 11. first body; 12. first protrusion; 13. first coupling tooth; 14. second protrusion; 15. second coupling tooth; 16. first avoidance space; 17. mounting body; 2. second clamp disc; 21. clamp disc housing; 211. first supporting portion; 212. arc-shaped portion; 213. second supporting portion; 22. third protrusion; 23. third coupling tooth; 24. second avoidance space; 25. fourth coupling tooth; 26. first guide groove; 3. gear assembly; 31. planetary shaft; 32. planetary gear; 33. first half-shaft gear; 331. first guide protrusion; 34. second half-shaft gear; 341 , second guide protrusion; 35, fifth coupling tooth; 4, differential housing; 41, first housing; 42, arc-shaped housing; 43, second housing; 44, third housing; 5, differential end cover; 51, end cover body; 52, end cover protrusion; 53, mounting hole; 54, second guide groove; 6, locking tooth pliers; 61, second body; 62, sixth coupling tooth; 63, limiting protrusion; 7, first half shaft; 8, second half shaft; 9, actuator; 91, electromagnetic clutch; 911, push piece; 9111, push plate; 9112, slider; 912, magnetic ring; 913, coil; 92, elastic member; 10, main reduction power gear. DETAILED DESCRIPTION

[0075] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0076] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0077] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0078] The utility model embodiment provides a first clamping disc 1, referring to Figure 1 、 Figure 2 and Figure 8 The first pliers 1 includes a first main body 11, a first protrusion 12 and a first combining tooth 13 extending from the first end surface of the first main body 11 along the axial direction of the first main body 11, and a second combining tooth 15 extending from the first protrusion 12 along the radial direction of the first main body 11; the first combining tooth 13 is used to combine with or disconnect with the combining teeth of the first workpiece; the second combining tooth 15 is used to combine with or disconnect with the combining teeth of the second workpiece, and a first avoidance space 16 for avoiding the combining teeth of the second workpiece is formed between the second combining tooth 15 and the first combining tooth 13.

[0079] The first end surface is the end surface of the first body 11 in the axial direction.

[0080] As an example, the first clamp 1 includes a first main body 11, a first protrusion 12, a first combining tooth 13 and a second combining tooth 15. The first main body 11 is in the shape of an annular disc; when installed, the first main body 11 is used to be movably installed on the structure to be installed. The first protrusion 12 and the first combining tooth 13 extend from the first end face of the first main body 11 along the axial direction of the first main body 11. Specifically, the first protrusion 12 and the first combining tooth 13 are arranged on the first main body 11 from the outside to the inside along the radial direction of the first main body 11. The first combining tooth 13 is used to combine with or disconnect from the combining tooth of the first workpiece. The second combining tooth 15 extends from one end of the first protrusion 12 along the radial direction of the first main body 11. The second combining tooth 15 is used to combine with the combining tooth of the second workpiece; a first avoidance space 16 for avoiding the combining tooth of the second workpiece is formed between the second combining tooth 15 and the first combining tooth 13.

[0081] Furthermore, the first clamp disc 1 also includes a second protrusion 14, which extends from the other end of the first protrusion 12 along the radial direction of the first main body 11, is located between the second combining tooth 15 and the first combining tooth 13, and cooperates with the first combining tooth 13 to form a space for installing the first workpiece, and forms a first avoidance space 16 between the second combining tooth 15 for avoiding the combining tooth of the second workpiece.

[0082] In this example, the first clamp disc 1 is installed on the structure to be installed and can be moved along the axial direction of the first clamp disc 1. When the first clamp disc 1 moves to different positions of the structure to be installed, the first combining teeth 13 and the second combining teeth 15 on the first clamp disc 1 can be adjusted to different positions accordingly to adjust the state of the combining teeth of the first combining teeth 13 and the first workpiece (combined or disconnected), and adjust the state of the combining teeth of the second combining teeth 15 and the second workpiece (combined or disconnected). According to the multiple state combinations between the two groups of combining teeth and the two workpieces, the following combination relationships are specifically formed: the first, the first combining teeth 13 are disconnected from the combining teeth of the first workpiece, and the second combining teeth 15 are connected to the second workpiece. The first type is that the first combining teeth 13 are combined with the combining teeth of the first workpiece, and the second combining teeth 15 are disconnected from the combining teeth of the second workpiece; the third type is that the first combining teeth 13 are combined with the combining teeth of the first workpiece, and the second combining teeth 15 are combined with the combining teeth of the second workpiece; the fourth type is that the first combining teeth 13 are disconnected from the combining teeth of the first workpiece, and the second combining teeth 15 are combined with the combining teeth of the second workpiece; so as to achieve the purpose of adjusting the multiple functional switching between the structure to be installed and the two workpieces by using one clamp disc, so as to solve the problem that multiple clamp discs need to be combined with different components in the prior art, resulting in low equipment integration, increased number and weight of parts, and unfavorable layout.

[0083] In this embodiment, the first clamp 1 includes a first body 11, a first protrusion 12, a first engaging tooth 13, and a second engaging tooth 15. The first engaging tooth 13 is used to engage or disengage with the engaging teeth of the first workpiece. The second engaging tooth 15 forms a first clearance space 16 with the first engaging tooth 13 for circumventing the engaging teeth of the second workpiece. The second engaging tooth 15 is used to engage or disengage with the engaging teeth of the second workpiece. The combination of the two sets of engaging teeth allows for at least three functional switching functions. Compared to existing methods that can only achieve one or two functional switching functions, this greatly improves integration, reduces the number and weight of components, and is more convenient for structural layout. The structure is simple and low-cost.

[0084] In one embodiment, referring to Figure 1 、 Figure 2 and Figure 8 When the first clamp disc 1 is in the first position, the first combining teeth 13 are disconnected from the combining teeth of the first workpiece, and the second combining teeth 15 are disconnected from the combining teeth of the second workpiece; when the first clamp disc 1 is in the second position, the first combining teeth 13 are disconnected from the combining teeth of the first workpiece, and the second combining teeth 15 are combined with the combining teeth of the second workpiece; when the first clamp disc 1 is in the third position, the first combining teeth 13 are combined with the combining teeth of the first workpiece, and the second combining teeth 15 are combined with the combining teeth of the second workpiece; when the first clamp disc 1 is in the fourth position, the first combining teeth 13 are combined with the combining teeth of the first workpiece, and the second combining teeth 15 are disconnected from the combining teeth of the second workpiece.

[0085] The first position, the second position, the third position and the fourth position are four positions that the first clamp 1 passes through in sequence when it moves along the axial direction of the first clamp 1 from the structure to be mounted to the first workpiece.

[0086] As an example, when the first clamp 1 moves toward the first workpiece to the first position along the axial direction of the first clamp 1, the first combining teeth 13 are disconnected from the combining teeth of the first workpiece, and the second combining teeth 15 are disconnected from the combining teeth of the second workpiece; when the first clamp 1 continues to move toward the first workpiece to the second position along the axial direction of the first clamp 1, the first combining teeth 13 are disconnected from the combining teeth of the first workpiece, and the second combining teeth 15 are connected to the combining teeth of the second workpiece; when the first clamp 1 continues to move toward the first workpiece to the third position along the axial direction of the first clamp 1, the first combining teeth 13 are connected to the combining teeth of the first workpiece. When the first clamp disc 1 is moved to the fourth position along the axial direction of the first clamp disc 1 toward the first workpiece, the engaging teeth of the second workpiece move to the first avoidance space 16, and the second engaging teeth 15 are disconnected from the engaging teeth of the second workpiece, and the first engaging teeth 13 are engaged with the engaging teeth of the first workpiece; by arranging the first engaging teeth 13, the second engaging teeth 15 and the first avoidance space 16 on the first clamp disc 1, different combinations of engaging and disconnecting states can be made between the first clamp disc 1 and the first workpiece and the second workpiece, thereby realizing switching of multiple functions.

[0087] In one embodiment, referring to Figure 1 and Figure 2 The first clamp disc 1 further includes a mounting body 17 extending from the second end surface of the first body 11 along the axial direction of the first body 11 , and the mounting body 17 is used to connect with the structure to be mounted.

[0088] The second end surface and the first end surface are two end surfaces of the first body 11 that are oppositely arranged in the axial direction.

[0089] As an example, the first pliers disc 1 also includes a mounting body 17; the mounting body 17 extends from the second end face of the first body 11 along the axial direction of the first body 11. During installation, the mounting body 17 is inserted into the structure to be installed and can move along the axial direction to provide a guide limit for the mobile installation of the first pliers disc 1.

[0090] In one embodiment, referring to Figure 1 and Figure 2 The mounting body 17 includes a plurality of mounting portions, and the plurality of mounting portions are spaced apart along the circumferential direction.

[0091] As an example, the mounting body 17 includes a plurality of mounting portions, and the plurality of mounting portions are spaced apart along the circumferential direction, so that the first pliers disc 1 can be more securely and stably mounted in the structure to be mounted, facilitating the installation and removal of the first pliers disc 1 .

[0092] The utility model embodiment provides a second clamping disc 2, referring to Figure 3 、 Figure 4 and Figure 8 , including a pliers disc housing 21 and a third protrusion 22 extending from the first end surface of the pliers disc housing 21 along the axial direction of the pliers disc housing 21, the third protrusion 22 extending along the radial direction of the pliers disc housing 21 with a third coupling tooth 23, the third coupling tooth 23 is used to couple with or separate from a coupling tooth of the third workpiece; the pliers disc housing 21 is used to install the first workpiece so that the coupling tooth of the first workpiece is coupled with or separated from another coupling tooth of the third workpiece; a second avoidance space 24 for avoiding a coupling tooth of the third workpiece is formed between the third coupling tooth 23 and the pliers disc housing 21.

[0093] The axial direction is the axis direction of the second clamp disc 2 , and the radial direction is the diameter direction of the second clamp disc 2 .

[0094] As an example, the second pliers 2 includes a pliers housing 21 and a third protrusion 22. The pliers housing 21 is installed in the differential housing 4 as a mounting support, and is used to mount the first workpiece so that the coupling tooth of the first workpiece is coupled with or separated from another coupling tooth of the third workpiece. The third protrusion 22 extends from the first end of the pliers housing 21 along the axial direction of the pliers housing 21, and the third coupling tooth 23 extends from one end of the third protrusion 22 in a radial direction. The third coupling tooth 23 is used to couple with or disconnect with a coupling tooth of the third workpiece. A second avoidance space 24 is formed between the third coupling tooth 23 and the pliers housing 21. The second avoidance space 24 is used to avoid a coupling tooth of the third workpiece, so that the third workpiece is in a disconnected state with the second pliers 2. In this way, according to the state combination of the two groups of combining teeth, the following combination relationships can be specifically formed: first, the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, and a combining tooth of the third workpiece is disconnected from the third combining tooth 23; second, the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, and a combining tooth of the third workpiece is combined with the third combining tooth 23; third, the other combining tooth of the third workpiece is combined with the combining tooth of the first workpiece, and a combining tooth of the third workpiece is combined with the third combining tooth 23; fourth, the other combining tooth of the third workpiece is combined with the combining tooth of the first workpiece, and a combining tooth of the third workpiece is disconnected from the third combining tooth 23; at least three function switchings can be achieved. Compared with the existing technology that can only achieve two function switchings, it helps to greatly improve the integration, reduce the number and weight of parts, and is more conducive to structural layout, with a simple structure and low cost.

[0095] In one embodiment, referring to Figure 3 、 Figure 4 and Figure 8When the third workpiece is in the first position, the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, and a combining tooth of the third workpiece is disconnected from the third combining tooth 23; when the third workpiece is in the second position, the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, and a combining tooth of the third workpiece is combined with the third combining tooth 23; when the third workpiece is in the third position, the other combining tooth of the third workpiece is combined with the combining tooth of the first workpiece, and a combining tooth of the third workpiece is combined with the third combining tooth 23; when the third workpiece is in the fourth position, the other combining tooth of the third workpiece is combined with the combining tooth of the first workpiece, and a combining tooth of the third workpiece is disconnected from the third combining tooth 23.

[0096] As an example, when the third workpiece moves toward the first workpiece to a first position along the axial direction of the third workpiece, another combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, and one combining tooth of the third workpiece is disconnected from the third combining tooth 23; when the third workpiece continues to move toward the first workpiece to a second position along the axial direction of the third workpiece, another combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, and one combining tooth of the third workpiece is combined with the third combining tooth 23; when the third workpiece continues to move toward the first workpiece to a third position along the axial direction of the third workpiece, another combining tooth of the third workpiece is combined with the combining tooth of the first workpiece, and one combining tooth of the third workpiece is combined with the third combining tooth 23; when the third workpiece continues to move toward the first workpiece to a fourth position along the axial direction of the third workpiece, one combining tooth of the third workpiece moves to the second avoidance space 24, one combining tooth of the third workpiece is disconnected from the third combining tooth 23, and another combining tooth of the third workpiece is combined with the combining tooth of the first workpiece; by arranging the third combining tooth 23 and the second avoidance space 24 on the second clamp 2, the third workpiece can have different combinations of combining and disconnecting states with the second clamp 2 and the first workpiece, thereby realizing switching of multiple functions.

[0097] In one embodiment, referring to Figure 2 and Figure 3 The second pliers 2 further includes a fourth engaging tooth 25 extending from the second end surface of the pliers housing 21 along the axial direction of the pliers housing 21 ; the fourth engaging tooth 25 is used to engage with or disconnect from the engaging tooth of the fourth workpiece.

[0098] As an example, the second pliers 2 also includes a fourth coupling tooth 25, which extends axially from the second end of the pliers housing 21; the fourth coupling tooth 25 is used to couple with or disconnect with the coupling tooth of the fourth workpiece, so that the state of the second pliers 2 can be controlled by the fourth workpiece, and in conjunction with the third workpiece, the switchable functional mode can be further increased. Specifically, the following several combination relationships are formed: the first is that the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, a combining tooth of the third workpiece is disconnected from the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is disconnected from the fourth combining tooth 25 of the second clamp disc 2; the second is that the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, a combining tooth of the third workpiece is disconnected from the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is combined with the fourth combining tooth 25 of the second clamp disc 2; the third is that the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, a combining tooth of the third workpiece is combined with the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is disconnected from the fourth combining tooth 25 of the second clamp disc 2; the fourth is that the other combining tooth of the third workpiece is disconnected from the combining tooth of the first workpiece, a combining tooth of the third workpiece is combined with the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is combined with the fourth combining tooth 25 of the second clamp disc 2 The tooth 25 of the third workpiece is engaged; the fifth type is that the other combining tooth of the third workpiece is engaged with the combining tooth of the first workpiece, a combining tooth of the third workpiece is engaged with the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is disconnected from the fourth combining tooth 25 of the second clamp disc 2; the sixth type is that the other combining tooth of the third workpiece is engaged with the combining tooth of the first workpiece, a combining tooth of the third workpiece is engaged with the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is engaged with the fourth combining tooth 25 of the second clamp disc 2; the seventh type is that the other combining tooth of the third workpiece is engaged with the combining tooth of the first workpiece, a combining tooth of the third workpiece is disconnected from the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is disconnected from the fourth combining tooth 25 of the second clamp disc 2; the eighth type is that the other combining tooth of the third workpiece is engaged with the combining tooth of the first workpiece, a combining tooth of the third workpiece is disconnected from the third combining tooth 23 of the second clamp disc 2, and the combining tooth of the fourth workpiece is engaged with the fourth combining tooth 25 of the second clamp disc 2.

[0099] In one embodiment, referring to Figure 2 、 Figure 3 and Figure 8 The pliers disc housing 21 includes a first support portion 211, an arc-shaped portion 212 extending from one end of the first support portion 211 in the axial direction, and a second support portion 213 extending from one end of the arc-shaped portion 212 in the axial direction; the arc-shaped portion 212 cooperates with the second support portion 213 to form a receiving space for installing the first workpiece; the third protrusion 22 is arranged on the second support portion 213, and the fourth combining tooth 25 is arranged on the first support portion 211.

[0100] As an example, the pliers housing 21 includes a first support portion 211, an arcuate portion 212, and a second support portion 213. The first support portion 211 and the second support portion 213 are two circular tubular structures with different diameters. During installation, the first support portion 211 is used as a reference and is specifically installed on the second semi-shaft 8. The arcuate portion 212 extends axially from one end of the first support portion 211, and the arc opening of the arcuate portion 212 is arranged inward, specifically toward the center of the pliers housing 21. The second support portion 213 extends axially from one end of the arcuate portion 212. The arcuate portion 212 cooperates with the second support portion 213 to form a accommodating space for installing the first workpiece. Specifically, a mounting position is provided on the second support portion 213, and the first workpiece is movably installed in the mounting position. The third protrusion 22 is arranged on the second supporting portion 213, and the third combining tooth 23 extends from the outer side of one end of the third protrusion 22 in the radial direction. The third combining tooth 23 is used to combine with or disconnect from a combining tooth of the third workpiece; the fourth combining tooth 25 is arranged on the first supporting portion 211, and the fourth combining tooth 25 is used to combine with or disconnect from the combining tooth of the fourth workpiece.

[0101] The present invention provides a differential assembly, referring to Figure 1-12 , including a gear assembly 3, a first pliers disc 1 and a second pliers disc 2; the gear assembly 3 is arranged in the second pliers disc 2; the first pliers disc 1 is movably arranged on the first side of the second pliers disc 2 along the axial direction, and is combined with or disconnected from the second pliers disc 2 and / or the gear assembly 3.

[0102] As an example, the caliper of a conventional differential assembly can only engage or disengage with one workpiece, and therefore can only integrate a conventional differential + disengagement function or a conventional differential + differential lock function at most, but cannot provide both conventional differential + disengagement + differential lock functions. The differential assembly in this example includes a gear assembly 3, a first caliper 1, and a second caliper 2. During installation, the gear assembly 3 is disposed within the second caliper 2. The first caliper 1 is axially movable on a first side of the second caliper 2, engaging or disengaging with the second caliper 2 and / or the gear assembly 3. In this way, the first caliper 1 can drive the second caliper 2 and / or the gear assembly 3 to rotate, thereby controlling the working state of the two half-axles and switching the different functions of the differential assembly. This greatly improves the level of integration, reduces the number and weight of components, and provides a smaller size that facilitates layout, resulting in a simple structure and low cost.

[0103] In this example, the first caliper 1 and the second caliper 2 and / or the gear assembly 3 in the differential assembly can form the following combinations:

[0104] Reference Figure 8When the first clamp disc 1 is in the first position A, the first coupling tooth 13 of the first clamp disc 1 is disconnected from the fifth coupling tooth 35 of the gear assembly 3, and the second coupling tooth 15 is disconnected from the third coupling tooth 23 of the second clamp disc 2. At this time, the first clamp disc 1 is connected to the power input end, the gear assembly 3 is connected to the power output end, and the gear assembly 3 is rotatably installed in the second clamp disc 2. The first clamp disc 1 is decoupled from the gear assembly 3 and the second clamp disc 2, realizing the disconnection function.

[0105] Reference Figure 9 When the first caliper 1 is in the second position B, the first engaging tooth 13 of the first caliper 1 is disconnected from the fifth engaging tooth 35 of the gear assembly 3, and the second engaging tooth 15 is engaged with the third engaging tooth 23 of the second caliper 2. At this time, the first caliper 1 is connected to the power input end, and the gear assembly 3 is connected to the power output end. The gear assembly 3 is rotatably installed in the second caliper 2. Torque can be transmitted between the first caliper 1 and the gear assembly 3, realizing the function of a conventional differential.

[0106] Reference Figure 10 When the first caliper 1 is in the third position C, the first engaging tooth 13 of the first caliper 1 is engaged with the fifth engaging tooth 35 of the gear assembly 3, and the second engaging tooth 15 is engaged with the third engaging tooth 23 of the second caliper 2. At this time, the first caliper 1 is connected to the power input end, and the gear assembly 3 is connected to the power output end. The first caliper 1 locks the second caliper 2 and the gear assembly 3 together, and the two half-shafts cannot produce a speed difference, thereby realizing the differential lock function.

[0107] Reference Figure 11 When the first caliper 1 is in the fourth position D, the first engaging tooth 13 of the first caliper 1 engages with the fifth engaging tooth 35 of the gear assembly 3, the second engaging tooth 15 is in the second avoidance space 24, and the third engaging tooth 23 is in the first avoidance space 16. The second engaging tooth 15 is disconnected from the third engaging tooth 23 of the second caliper 2. At this time, the first caliper 1 is connected to the power input end, the gear assembly 3 is connected to the power output end, and the gear assembly 3 is rotatably mounted within the second caliper 2. Torque can be transmitted between the first caliper 1 and the gear assembly 3, achieving the function of a conventional differential. Among them, the first position A, second position B, third position C, and fourth position D of the first caliper 1 are four positions arranged sequentially along the axial direction of the differential end cover 5.

[0108] In this embodiment, the first pliers 1 includes a first body 11, a first protrusion 12, a first engaging tooth 13, and a second engaging tooth 15. The first engaging tooth 13 is used to engage with or disengage the fifth engaging tooth 35 of the gear assembly 3. A first clearance space 16 is formed between the second engaging tooth 15 and the first engaging tooth 13 for circumventing the third engaging tooth 23 of the second pliers 2. The second engaging tooth 15 is used to engage with or disengage the third engaging tooth 23 of the second pliers 2. Based on the state combination of the two sets of engaging teeth, at least three functional switching functions can be achieved. Compared to the prior art method that can only achieve two functional switching functions, this method helps to greatly improve the integration level, reduce the number of components and weight, and is more conducive to structural layout. The structure is simple and low-cost.

[0109] In one embodiment, referring to Figure 6 、 Figure 7 and Figure 8 The differential assembly also includes a differential housing 4 and a differential end cover 5; the differential housing 4 and the differential end cover 5 are arranged opposite to each other in the axial direction, and the differential end cover 5 is connected to the differential housing 4; the second caliper 2 is rotatably mounted in the differential housing 4, and the first caliper 1 is movably mounted in the differential end cover 5.

[0110] As an example, the differential assembly also includes a differential housing 4 and a differential end cover 5. During installation, the differential housing 4 and differential end cover 5 are mounted on a support structure via bearings. The differential housing 4 and differential end cover 5 are arranged relative to each other in the axial direction, and the differential end cover 5 is fixedly connected to the differential housing 4. The second caliper 2 is rotatably mounted within the differential housing 4, the gear assembly 3 is mounted within the second caliper 2, and the first caliper 1 is movably mounted within the differential end cover 5. Specifically, the first caliper 1 and differential end cover 5 are nested together and can move axially relative to each other but cannot rotate relative to each other. The second caliper 2 is loosely mounted on the differential housing 4 with a small gap. The differential housing 4 supports it axially and allows relative rotation. The gear assembly 3 is mounted on the second caliper 2 and is no longer connected to the differential housing 4.

[0111] In this example, the differential housing 4 includes a first housing 41, an arc-shaped housing 42 extending from one end of the first housing 41 in an axial direction, a second housing 43 extending from one end of the arc-shaped housing 42 in an axial direction, and a third housing 44 extending from the outside of one end of the second housing 43 in an axial direction. The first housing 41, the arc-shaped housing 42 and the second housing 43 are used to match the second caliper 2. A movable space is formed between the third housing 44 and the second housing 43 for movement of the first caliper 1. The differential end cover 5 includes an end cover body 51 and an end cover protrusion 52 extending from the inner side of the end cover body 51 in an axial direction. The end cover body 51 is provided with a mounting hole 53. The mounting body 17 of the first caliper 1 is passed through the mounting hole 53, and the first caliper 1 is installed in the mounting space.

[0112] In one embodiment, referring to Figure 8-12 The differential assembly also includes a locking tooth caliper disc 6, which is movably arranged on the second side of the second caliper disc 2 in the axial direction and is connected to or disconnected from the second caliper disc 2.

[0113] As an example, the differential assembly also includes a locking toothed caliper disc 6. When installed, the locking toothed caliper disc 6 is movably arranged in the axial direction on the second side of the second caliper disc 2. Specifically, the locking toothed caliper disc 6 is movably installed at the end of the differential housing 4 away from the differential end cover 5, and is used to engage with or disengage the second caliper disc 2. Specifically, the sixth engaging tooth 62 on the locking toothed caliper disc 6 is engaged with or disengaged from the fourth engaging tooth 25 on the second caliper disc 2, and is used to prevent or rotate the second caliper disc 2. The locking toothed caliper disc 6 is axially movable and radially locked with the reduction gear housing (equivalent to being locked with the frame), and rotates relative to the differential housing 4 to limit the movement of the second caliper disc 2, which can further realize the function of switching the differential assembly, and is mainly used in switching the in-situ U-turn function. In this example, the locking toothed caliper disc 6 in the differential assembly has two positions when it moves axially, engaging with or disengaging from the second caliper disc 2, and the first caliper disc 1 has four positions when it moves axially, engaging with or disengaging from the second caliper disc 2 and / or the gear assembly 3, and can form the following combination relationships:

[0114] Reference Figure 8 When the first pliers disc 1 is in the first position A and the locking tooth pliers disc 6 is in the first position E, the first combining tooth 13 of the first pliers disc 1 is disconnected from the fifth combining tooth 35 of the gear assembly 3, the second combining tooth 15 is disconnected from the third combining tooth 23 of the second pliers disc 2, and the sixth combining tooth 62 of the locking tooth pliers disc 6 is disconnected from the fourth combining tooth 25 of the second pliers disc 2. At this time, the first pliers disc 1 is decoupled from the gear assembly 3, realizing the disconnection function.

[0115] Reference Figure 9 When the first pliers 1 is in the second position B and the locking tooth pliers 6 is in the first position E, the first engaging tooth 13 of the first pliers 1 is disconnected from the fifth engaging tooth 35 of the gear assembly 3, the second engaging tooth 15 is engaged with the third engaging tooth 23 of the second pliers 2, and the sixth engaging tooth 62 of the locking tooth pliers 6 is disconnected from the fourth engaging tooth 25 of the second pliers 2. At this time, torque can be transmitted between the first pliers 1 and the gear assembly 3, realizing the function of a conventional differential.

[0116] Reference Figure 10When the first pliers 1 is in the third position C and the locking tooth pliers 6 is in the first position E, the first engaging tooth 13 of the first pliers 1 is engaged with the fifth engaging tooth 35 of the gear assembly 3, the second engaging tooth 15 is engaged with the third engaging tooth 23 of the second pliers 2, and the sixth engaging tooth 62 of the locking tooth pliers 6 is disconnected from the fourth engaging tooth 25 of the second pliers 2. At this time, the first pliers 1 locks the second pliers 2 and the gear assembly 3 together, and the two half-shafts cannot produce a speed difference, thereby realizing the differential lock function.

[0117] Reference Figure 12 When the first caliper 1 is in the third position C and the locking tooth caliper 6 is in the second position F, the first engaging tooth 13 of the first caliper 1 is engaged with the fifth engaging tooth 35 of the gear assembly 3, the second engaging tooth 15 is engaged with the third engaging tooth 23 of the second caliper 2, and the sixth engaging tooth 62 of the locking tooth caliper 6 is engaged with the fourth engaging tooth 25 of the second caliper 2. At this time, the differential end cover 5, the first caliper 1, the second caliper 2 and the gear assembly 3 are locked together, and the two half-shaft gears are fixedly connected to the differential end cover 5 without relative rotation, thereby realizing the parking function.

[0118] Reference Figure 11 When the first pliers 1 is in the fourth position D and the locking pliers 6 is in the second position F, the first engaging tooth 13 of the first pliers 1 is engaged with the fifth engaging tooth 35 of the gear assembly 3, the second engaging tooth 15 is disconnected from the third engaging tooth 23 of the second pliers 2, and the sixth engaging tooth 62 of the locking pliers 6 is engaged with the fourth engaging tooth 25 of the second pliers 2. At this time, after the locking pliers 6 is engaged with the second pliers 2, the second pliers 2 is locked because the locking pliers 6 is locked with the frame. The main reducer power gear 10 drives the right side half-shaft gear in the gear assembly 3 to rotate in one direction through the first pliers 1, and the right side half-shaft gear then drives the left side half-shaft gear to move in the opposite direction through the planetary gear 32 of the gear assembly 3, thereby realizing the on-the-spot U-turn function (for example, the left and right wheels rotate in opposite directions).

[0119] In one embodiment, referring to Figure 8-12 The locking tooth pliers disc 6 includes a second body 61 and a sixth coupling tooth 62 extending from one side of the second body 61 in the axial direction; the sixth coupling tooth 62 is used to couple with or disconnect with the fourth coupling tooth 25 of the second pliers disc 2.

[0120] As an example, the locking tooth caliper 6 includes a second body 61 and a sixth engaging tooth 62. During installation, the second body 61 is mounted on the second half-shaft 8 and is movable in the axial direction. The sixth engaging tooth 62 extends axially from one side of the second body 61. By moving and adjusting the position of the second body 61, the sixth engaging tooth 62 can be controlled to engage or disengage with the fourth engaging tooth 25 of the second caliper 2, so that the second caliper 2 does not rotate or rotates, further realizing the function of switching the differential assembly. Among them, a limiting protrusion 63 extends radially from the other side of the second body 61. The limiting protrusion 63 is arranged opposite to the differential housing 4, which can limit the movement range of the second body 61 to prevent it from moving beyond the limit.

[0121] In one embodiment, referring to Figure 8-12 The differential assembly also includes a first half-shaft 7 and a second half-shaft 8; the first half-shaft 7 is arranged in the differential end cover 5 and is connected to the first side of the gear assembly 3; the second half-shaft 8 is arranged in turn in the locking caliper plate 6 and the differential case 4, and is connected to the second side of the gear assembly 3.

[0122] As an example, the differential assembly also includes a first half-shaft 7 and a second half-shaft 8; during installation, the first half-shaft 7 is passed through the differential end cover 5 and connected to the first side of the gear assembly 3; the second half-shaft 8 is passed through the locking gear caliper 6 and the differential housing 4 in sequence, and connected to the second side of the gear assembly 3; the differential end cover 5 and the first caliper 1 are rotated in this way, which can drive the gear assembly 3 to rotate, thereby driving the first half-shaft 7 and the second half-shaft 8 to rotate.

[0123] In one embodiment, referring to Figure 8-12 The gear assembly 3 includes a planetary shaft 31, two planetary gears 32, a first half-shaft gear 33 and a second half-shaft gear 34; the planetary shaft 31 is arranged in the second pliers 2 in the radial direction, and the two planetary gears 32 are arranged on the planetary shaft 31 at intervals; the first half-shaft gear 33 is connected to the first half-shaft 7, and the first half-shaft gear 33 is meshed with the first side of the two planetary gears 32; the second half-shaft gear 34 is connected to the second half-shaft 8, and the second half-shaft gear 34 is meshed with the second side of the two planetary gears 32; the second half-shaft gear 34 is provided with a fifth coupling tooth 35, and the fifth coupling tooth 35 is used to couple with or separate from the first coupling tooth 13 of the first pliers 1.

[0124] As an example, the gear assembly 3 includes a planetary shaft 31, a planetary gear 32, a first half-shaft gear 33 and a second half-shaft gear 34; during installation, the planetary shaft 31 is arranged in the second pliers 2 in the radial direction, and the two planetary gears 32 are arranged at intervals on the planetary shaft 31; the first half-shaft gear 33 is installed on the first half-shaft 7, and the first half-shaft gear 33 is meshed with the first side of the planetary gear 32; the second half-shaft gear 34 is installed on the second half-shaft 8, and the second half-shaft gear 34 is meshed with the second side of the planetary gear 32; the second half-shaft gear 34 is provided with a fifth coupling tooth 35, and the fifth coupling tooth 35 is used to couple with or separate from the first coupling tooth 13 of the first pliers 1, thereby facilitating the coupling between the first pliers 1 and the second half-shaft gear 34; the differential end cover 5 and the first pliers 1 are arranged to rotate in this way, which can drive the planetary gear 32 to rotate around the planetary shaft 31, so that the first half-shaft gear 33 and the second half-shaft gear 34 rotate, thereby driving the first half-shaft 7 and the second half-shaft 8 to rotate.

[0125] When the first caliper 1 is in the first position A, the first coupling tooth 13 of the first caliper 1 is disconnected from the fifth coupling tooth 35 of the gear assembly 3, and the second coupling tooth 15 is disconnected from the third coupling tooth 23 of the second caliper 2. At this time, the differential end cover 5 is decoupled from the gear assembly 3, realizing the disconnection function.

[0126] When the first pliers 1 is in the second position B, the first engaging tooth 13 of the first pliers 1 is disconnected from the fifth engaging tooth 35 of the gear assembly 3, and the second engaging tooth 15 is engaged with the third engaging tooth 23 of the second pliers 2. At this time, the first pliers 1 drives the second pliers 2 to rotate, and then the planetary gear 32 rotates with the second pliers 2, and then transmits force to the first half-shaft gear 33 and the second half-shaft gear 34, so as to rotate the first half-shaft 7 and the second half-shaft 8 respectively. At this time, torque can be transmitted between the differential end cover 5 and the gear assembly 3, realizing the function of a conventional differential.

[0127] When the first clamp disc 1 is in the third position C, the first coupling tooth 13 of the first clamp disc 1 is coupled with the fifth coupling tooth 35 of the gear assembly 3, and the second coupling tooth 15 is coupled with the third coupling tooth 23 of the second clamp disc 2. At this time, the first clamp disc 1 locks the second clamp disc 2 and the gear assembly 3 together and rotates together. There is no relative rotation between the planetary gear 32 and the first half-shaft gear 33 and the second half-shaft gear 34. The first half-shaft 7 and the second half-shaft 8 are locked, and no speed difference can be generated, thereby realizing the differential lock function.

[0128] In one embodiment, referring to Figure 7-8 A first guide groove 26 is provided on the inner wall of the second caliper 2, and a first guide protrusion 331 is provided on the first half-shaft gear 33, and the first guide protrusion 331 matches the first guide groove 26; a second guide groove 54 is provided on the inner wall of the differential end cover 5, and a second guide protrusion 341 is provided on the second half-shaft gear 34, and the second guide protrusion 341 matches the second guide groove 54.

[0129] As an example, a first guide groove 26 is provided on the inner wall of the second caliper 2, specifically, a first guide groove 26 is provided on the inner wall of the first support portion 211, and a first guide protrusion 331 is provided on the first half-shaft gear 33, specifically, a first guide protrusion 331 is provided on the side of the first half-shaft gear 33 away from the planetary gear 32; the first guide protrusion 331 matches the first guide groove 26, and the first guide protrusion 331 is located between the differential end cover 5 and the first half-shaft 7, thereby providing a guide limit for the installation of the first half-shaft gear 33 and ensuring the safe rotation of the first half-shaft gear 33. A second guide groove 54 is provided on the inner wall of the differential end cover 5. Specifically, a first guide groove 26 is provided on the side of the end cover protrusion 52 near the axle shaft. A second guide protrusion 341 is provided on the second axle shaft gear 34, specifically on the side of the second axle shaft gear 34 away from the planetary gear 32. The second guide protrusion 341 matches the second guide groove 54 and is located between the second caliper 2 and the second axle shaft 8. This provides a guide limit for the installation of the second axle shaft gear 34 and ensures the safe rotation of the second axle shaft gear 34. A gasket is respectively provided between the second caliper 2 and the first axle shaft gear 33 and between the differential end cover 5 and the second axle shaft gear 34. The gasket prevents collisions between the second caliper 2 and the first axle shaft gear 33 and between the differential end cover 5 and the second axle shaft gear 34, effectively protecting equipment parts.

[0130] In one embodiment, referring to Figure 8-12 The differential assembly also includes a main reduction power gear 10; the main reduction power gear 10 is sleeved outside the differential housing 4 and the differential end cover 5, and is connected to the differential housing 4 and the differential end cover 5.

[0131] As an example, the differential assembly also includes a main reducer power gear 10; when installed, the main reducer power gear 10 is sleeved on the outside of the differential housing 4 and the differential end cover 5, and is connected to the differential housing 4 and the differential end cover 5; specifically, the main reducer power gear 10 is fixed to the differential housing 4 and the differential end cover 5 by interference fitting + laser welding, so that the main reducer power gear 10 can drive the differential end cover 5 to rotate, thereby driving the first caliper 1 to rotate, and the first caliper 1 can drive the second caliper 2 and / or the gear assembly 3 to rotate, so as to realize the different functions of switching the differential assembly, which greatly improves the integration, reduces the number and weight of components, and the smaller size is conducive to layout, and the structure is simple and the cost is low.

[0132] In one embodiment, referring to Figure 8-12 The differential assembly further includes an execution structure; the execution structure is connected to the first caliper disc 1 and / or the locking tooth caliper disc 6, and is used to adjust the position of the first caliper disc 1 and / or the position of the locking tooth caliper disc 6.

[0133] As an example, the differential assembly also includes an execution structure; when installed, the execution structure can be connected to the first caliper disc 1, the locking tooth caliper disc 6, or both the first caliper disc 1 and the locking tooth caliper disc 6. By controlling the working state of the execution structure, the position of the first caliper disc 1 can be adjusted to connect with the second caliper disc 2 and / or the gear assembly 3. The position of the locking tooth caliper disc 6 can also be adjusted to engage or disengage with the fourth engagement tooth 25 on the second caliper disc 2, so that the second caliper disc 2 does not rotate or rotates, thereby realizing the five functions of switching the differential assembly: conventional differential, disconnection, differential lock, parking, and turning on the spot; the five-in-one functional integration is achieved in the differential assembly, greatly enhancing the competitiveness of the product.

[0134] In one embodiment, referring to Figure 8-12 The execution structure includes two execution components 9; one execution component 9 is arranged on the differential end cover 5, for connecting with the first caliper disc 1; the other execution component 9 is arranged on the reduction gear housing, for connecting with the locking tooth caliper disc 6.

[0135] As an example, the execution structure includes two execution components 9; during installation, one execution component 9 is set on the differential end cover 5 for connecting with the first caliper 1. By controlling the working state of the execution component 9, the position of the first caliper 1 can be adjusted to connect with the second caliper 2 and / or the gear assembly 3; the other execution component 9 is set on the reduction gear housing for connecting with the locking tooth caliper 6. By controlling the working state of the execution component 9, the position of the locking tooth caliper 6 can be adjusted to engage with or disconnect with the fourth engaging tooth 25 on the second caliper 2, so that the second caliper 2 and the differential end cover 5 are locked as a whole or not locked as a whole; in this way, the position of the first caliper 1 and the locking tooth caliper 6 are adjusted through the cooperation of the two execution components 9 to realize the five functions of switching the differential assembly: conventional differential, disconnection, differential lock, parking and turning on the spot; five-in-one functional integration is realized in the differential assembly, which greatly enhances the competitiveness of the product.

[0136] In one embodiment, referring to Figure 8-12 The actuator 9 includes an electromagnetic clutch 91 and an elastic member 92; in one actuator, the electromagnetic clutch 91 is arranged on the differential end cover 5, for connecting with the first caliper 1, one end of the elastic member 92 is connected with the differential end cover 5, and the other end of the elastic member 92 is connected with the first caliper 1; in the other actuator, the electromagnetic clutch 91 is arranged on the reduction gear housing, for connecting with the locking tooth caliper 6, one end of the elastic member 92 is connected with the differential housing 4, and the other end of the elastic member 92 is connected with the locking tooth caliper 6.

[0137] As an example, the actuator assembly 9 includes an electromagnetic clutch 91 and an elastic member 92. During installation, the electromagnetic clutch 91 of one actuator assembly 9 is set on the differential end cover 5 for connecting with the first caliper disc 1. When the electromagnetic clutch 91 is working, it can push the first caliper disc 1 to move toward the second caliper disc 2. One end of the elastic member 92 is connected to the differential end cover 5, and the other end of the elastic member 92 is connected to the first caliper disc 1. When the electromagnetic clutch 91 is not working, the elasticity of the elastic member 92 can be used to drive the first caliper disc 1 to reset. The electromagnetic clutch 91 of another actuator assembly 9 is set on the reduction gear housing for connecting with the locking tooth caliper disc 6. When the electromagnetic clutch 91 is working, it can push the locking tooth caliper disc 6 to move toward the second caliper disc 2. One end of the elastic member 92 is connected to the reduction gear housing, and the other end of the elastic member 92 is connected to the locking tooth caliper disc 6. When the electromagnetic clutch 91 is not working, the elasticity of the elastic member 92 can be used to drive the locking tooth caliper disc 6 to reset. In this example, the electromagnetic clutch 91 and elastic member 92 of one actuator 9 cooperate to facilitate adjustment of the position of the first caliper 1. Simultaneously, the electromagnetic clutch 91 and elastic member 92 of another actuator 9 cooperate to facilitate adjustment of the position of the locking tooth caliper 6, thereby achieving the function of switching the differential assembly. The structure is simple and convenient for spatial arrangement. The electromagnetic clutch 91 of one actuator 9 and the first caliper 1, as well as the electromagnetic clutch 91 of the other actuator 9 and the locking tooth caliper 6, are both securely connected by interference fit.

[0138] For example, one actuator is the first actuator, and the other actuator is the second actuator; when the electromagnetic clutch 91 of the first actuator does not work and the electromagnetic clutch 91 of the second actuator does not work, the electromagnetic clutch 91 of the first actuator controls the first pliers 1 to move to the first position A, and the electromagnetic clutch 91 of the second actuator controls the locking pliers 6 to move to the first position E, the first combining tooth 13 is disconnected from the second half-shaft gear 34, the second combining tooth 15 is disconnected from the third combining tooth 23, and the locking pliers 6 is disconnected from the fourth combining tooth 25. At this time, the first pliers 1 is decoupled from the gear assembly 3, realizing the disconnection function.

[0139] When the electromagnetic clutch 91 of the first actuator assembly is working and the electromagnetic clutch 91 of the second actuator assembly is not working, the electromagnetic clutch 91 of the first actuator assembly controls the first caliper 1 to move to the second position B, and the electromagnetic clutch 91 of the second actuator assembly controls the locking tooth caliper 6 to move to the first position E, the first engaging tooth 13 is disconnected from the second side gear 34, the second engaging tooth 15 is engaged with the third engaging tooth 23, and the locking tooth caliper 6 is disconnected from the fourth engaging tooth 25. At this time, the elastic member 92 of the first actuator assembly is compressed, and the differential end cover 5 drives the second caliper 2 to rotate through the first caliper 1. The second caliper 2 drives the planetary gear 32 to rotate around the planetary shaft 31, which can drive the first side gear 33 and the second side gear 34 to rotate, thereby driving the first side shaft 7 and the second side shaft 8 to rotate. At this time, torque can be transmitted between the differential end cover 5 and the gear assembly 3, realizing the function of a conventional differential. When the electromagnetic clutch 91 of the first actuator assembly is not working, the elasticity of the elastic member 92 of the first actuator assembly is used to reset the first caliper 1.

[0140] When the electromagnetic clutch 91 of the first actuator is working and the electromagnetic clutch 91 of the second actuator is not working, the electromagnetic clutch 91 of the first actuator controls the first pliers 1 to move to the third position C, and the electromagnetic clutch 91 of the second actuator controls the locking pliers 6 to move to the first position E, the first coupling tooth 13 is coupled with the second half-shaft gear 34, the second coupling tooth 15 is coupled with the third coupling tooth 23, and the locking pliers 6 is disconnected from the fourth coupling tooth 25. At this time, the elastic member 92 of the first actuator is compressed, and the second pliers 2 drives the planetary gear The wheel 32 rotates around the planetary shaft 31, which can drive the first half-shaft gear 33 and the second half-shaft gear 34 to rotate, thereby driving the first half-shaft 7 and the second half-shaft 8 to rotate. At the same time, the second clamp disc 2 also drives the second half-shaft gear 34 to rotate. At this time, the first clamp disc 1 locks the second clamp disc 2 and the gear assembly 3 together, and the first half-shaft 7 and the second half-shaft 8 cannot generate a speed difference, thereby realizing the differential lock function; when the electromagnetic clutch 91 of the first actuator is not working, the elasticity of the elastic part 92 of the first actuator is used to reset the first clamp disc 1.

[0141] When the electromagnetic clutch 91 of the first actuator assembly is in operation and the electromagnetic clutch 91 of the second actuator assembly is in operation, the electromagnetic clutch 91 of the first actuator assembly controls the first caliper 1 to move to the third position C, and the electromagnetic clutch 91 of the second actuator assembly controls the locking caliper 6 to move to the second position F, the first engaging tooth 13 engages with the second side gear 34, the second engaging tooth 15 engages with the third engaging tooth 23, and the locking caliper 6 engages with the fourth engaging tooth 25. At this time, the elastic member 92 of the first actuator assembly is compressed, and the elastic member 92 of the second actuator assembly is compressed. At this time, the differential end cover 5, the first caliper 1, the second caliper 2 and the gear assembly 3 are locked together, and the two side gears are fixedly connected to the differential end cover 5 without relative rotation, thereby realizing the parking function; when the electromagnetic clutch 91 of the first actuator assembly is not in operation, the elasticity of the elastic member 92 of the first actuator assembly is used to reset the first caliper 1; when the electromagnetic clutch 91 of the second actuator assembly is not in operation, the elasticity of the electromagnetic clutch 91 of the second actuator assembly is used to reset the locking caliper 6.

[0142] When the electromagnetic clutch 91 of the first actuator works and the electromagnetic clutch 91 of the second actuator works, the electromagnetic clutch 91 of the first actuator controls the first pliers 1 to move to the fourth position D, and the electromagnetic clutch 91 of the second actuator controls the locking tooth pliers 6 to move to the second position F, the first combining tooth 13 is combined with the second half-shaft gear 34, the second combining tooth 15 is disconnected from the third combining tooth 23, and the locking tooth pliers 6 is combined with the fourth combining tooth 25. At this time, the elastic member 92 of the first actuator is compressed, and the elastic member 92 of the second actuator is compressed. At this time, the main reduction power gear 10 drives the second half-shaft gear 34 through the first pliers 1. The shaft gear 34 rotates in one direction, and the second half-shaft gear 34 drives the first half-shaft 7 to rotate. At the same time, the second caliper 2 is locked with the differential end cover 5, which can drive the first half-shaft gear 33 in the gear assembly 3 to rotate in the opposite direction. The first half-shaft gear 33 can drive the second half-shaft 8 to rotate; the two half-shafts have different directions, realizing the function of turning around in place; when the electromagnetic clutch 91 of the first actuator assembly does not work, the elasticity of the elastic member 92 of the first actuator assembly is used to reset the first caliper 1; when the electromagnetic clutch 91 of the second actuator assembly does not work, the elasticity of the electromagnetic clutch 91 of the second actuator assembly is used to reset the locking tooth caliper 6.

[0143] In one embodiment, referring to Figure 8-12 The actuator 9 also includes a position sensor. The position sensor of one actuator 9 is arranged on the first pliers disc 1; the position sensor of the other actuator 9 is arranged on the locking tooth pliers disc 6.

[0144] As an example, the actuator 9 also includes a position sensor. The position sensor of an actuator 9 is set on the first clamp disc 1. The position sensor can collect the moving speed and position information of the first clamp disc 1. The electromagnetic clutch 91 of an actuator 9 can control the current size according to the information collected by the position sensor, thereby ensuring the accuracy of the position of the first clamp disc 1; the position sensor of another actuator 9 is set on the locking tooth clamp disc 6. The position sensor can collect the moving speed and position information of the locking tooth clamp disc 6. The electromagnetic clutch 91 of an actuator 9 can control the current size according to the information collected by the position sensor, thereby ensuring the accuracy of the position of the locking tooth clamp disc 6.

[0145] In one embodiment, referring to Figure 8-12 The electromagnetic clutch 91 includes a push piece 911, a magnetic ring 912 and a coil 913; the push piece 911 includes a push plate 9111 and a slider 9112; the push plate 9111 is connected to the first pliers disc 1 or the locking tooth pliers disc 6, one end of the slider 9112 is connected to the push plate 9111, and the magnetic ring 912 is connected to the slider 9112; the coil 913 is arranged opposite to the magnetic ring 912, and is used to drive the magnetic ring 912 to move.

[0146] As an example, the electromagnetic clutch 91 of one actuator 9 and the electromagnetic clutch 91 of another actuator 9 both include a pusher 911, a magnetic ring 912 and a coil 913; during installation, the pusher 911 is connected to the first pliers 1 or the locking pliers 6; the magnetic ring 912 is connected to the pusher 911, and the magnetic ring 912 is connected to the coil 913, and the coil 913 is arranged opposite to the magnetic ring 912. When the coil 913 is energized, an electromagnetic force is generated, which can drive the magnetic ring 912 to move, thereby adjusting the position of the first pliers 1 or the locking pliers 6; when the electromagnetic clutch 91 of one actuator 9 is not working, the elasticity of the elastic member 92 of one actuator 9 is used to reset the first pliers 1; when the electromagnetic clutch 91 of the other actuator 9 is not working, the elasticity of the electromagnetic clutch 91 of the other actuator 9 is used to reset the locking pliers 6, so that the function of switching the differential assembly can be realized. The coil 913 includes a coil body and a coil shell. The coil shell is fixed on the support structure, and the coil body is installed in the coil shell. Electromagnetic force can be generated by energizing the coil body.

[0147] As an example, the pusher 911 includes a push plate 9111 and a slider 9112; during installation, the push plate 9111 is connected to the first pliers 1 or the locking tooth pliers 6, one end of the slider 9112 is connected to the push plate 9111, and the magnetic ring 912 is connected to the slider 9112; when the coil 913 is energized, an electromagnetic force is generated, which can drive the magnetic ring 912 to move, and the magnetic ring 912 can push the slider 9112 to move, thereby adjusting the position of the first pliers 1 or the locking tooth pliers 6 through the push plate 9111; when the electromagnetic clutch 91 of an actuator 9 is not working, the elasticity of the elastic member 92 of an actuator 9 is used to reset the first pliers 1; when the electromagnetic clutch 91 of another actuator 9 is not working, the elasticity of the electromagnetic clutch 91 of another actuator 9 is used to reset the locking tooth pliers 6, so that the function of switching the differential assembly can be realized.

[0148] In one embodiment, referring to Figure 8-12 The actuator 9 includes a motor and a worm gear; in one actuator 9, the motor is arranged on the differential end cover 5, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the first clamp disk 1; in another actuator 9, the motor is arranged on the differential housing 4, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the locking tooth clamp disk 6.

[0149] As an example, another structural form of the actuator 9 is introduced, which specifically includes a motor and a worm gear; during installation, the motor of one actuator 9 is set on the differential end cover 5, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the first clamp disk 1; by controlling the working state of the motor, the worm gear can be driven to work, and the position of the first clamp disk 1 can be controlled by the number of rotations; the motor of another actuator 9 is set on the differential housing 4, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the locking tooth clamp disk 6; by controlling the working state of the motor, the worm gear can be driven to work, and the position of the locking tooth clamp disk 6 can be controlled by the number of rotations; in this way, the two actuators 9 can cooperate to control the positions of the first clamp disk 1 and the locking tooth clamp disk 6 respectively, thereby realizing the function of switching the differential assembly.

[0150] An embodiment of the utility model provides a vehicle, including a differential assembly.

[0151] As an example, a car includes a differential assembly, which includes a gear assembly 3, a first caliper 1 and a second caliper 2; the gear assembly 3 is arranged in the second caliper 2; the first caliper 1 is movably arranged on the first side of the second caliper 2 in the axial direction, and is engaged with or disconnected from the second caliper 2 and / or the gear assembly 3; in this way, the first caliper 1 can drive the second caliper 2 and / or the gear assembly 3 to rotate, so as to control the working state of the two half-shafts and realize the different functions of switching the differential assembly, which greatly improves the integration, reduces the number and weight of components, and the smaller size is conducive to layout, and the structure is simple and the cost is low.

[0152] This differential assembly integrates multiple functions. On the basis of the existing differential, it cleverly uses the differential end cover 5, the first caliper 1, the second caliper 2 and the locking tooth caliper 6 to achieve a total of five practical vehicle functions: disconnection, conventional differential, differential lock, parking and turning on the spot. It has a simple structure and low cost, but greatly improves vehicle performance. Among them, when the four-wheel drive model is in most operating conditions, the disconnection function of the differential assembly can disconnect the connection between the wheel and the auxiliary drive, which can effectively improve the efficiency of the entire vehicle and reduce energy waste (battery energy saving is about 6%); the conventional differential function of the differential assembly, the left and right wheel differential, improves vehicle handling and reduces tire wear; the differential lock function of the differential assembly is used in off-road conditions. When the wheel on one side slips, the power can be transmitted to the non-slip side wheel through differential locking, improving the vehicle's passability, which is also the basic requirement for the current market to judge whether a vehicle is an off-road vehicle; the differential assembly's on-site U-turn function enables the vehicle to turn around in a relatively small space by rotating the left and right wheels in opposite directions; the differential assembly's parking function securely connects the tire to the fixed housing by locking the differential end cover 5 and the gearbox (electromechanical coupling box) housing, ensuring the safety of the vehicle when parked.

[0153] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A first clamping disc, characterized in that: The invention comprises a first body, a first protrusion and a first coupling tooth extending from a first end surface of the first body in an axial direction of the first body, and a second coupling tooth extending from the first protrusion in a radial direction of the first body; The first engaging teeth are used to engage with or disconnect from the engaging teeth of the first workpiece; The second combining tooth is used to combine with or disconnect from the combining tooth of the second workpiece, and a first avoidance space for avoiding the combining tooth of the second workpiece is formed between the second combining tooth and the first combining tooth.

2. The first clamping disc according to claim 1, characterized in that: When the first clamp is located at the first position, the first engaging teeth are disconnected from the engaging teeth of the first workpiece, and the second engaging teeth are disconnected from the engaging teeth of the second workpiece; When the first clamp is located at the second position, the first engaging teeth are disconnected from the engaging teeth of the first workpiece, and the second engaging teeth are engaged with the engaging teeth of the second workpiece; When the first clamp is located at the third position, the first engaging teeth engage with the engaging teeth of the first workpiece, and the second engaging teeth engage with the engaging teeth of the second workpiece; When the first clamp is located at the fourth position, the first engaging teeth are engaged with the engaging teeth of the first workpiece, and the second engaging teeth are disconnected from the engaging teeth of the second workpiece.

3. The first clamping disc according to claim 1, characterized in that: The first clamp disc further includes a mounting body extending from the second end surface of the first body along the axial direction of the first body, and the mounting body is used to connect with a structure to be mounted.

4. The first clamping disc according to claim 3, characterized in that: The mounting body includes a plurality of mounting portions, and the plurality of mounting portions are arranged at intervals along a circumferential direction.

5. A second clamping disc, characterized in that: The invention comprises a clamp housing and a third protrusion extending from a first end surface of the clamp housing in the axial direction of the clamp housing, wherein the third protrusion has a third engaging tooth extending in the radial direction of the clamp housing, and the third engaging tooth is used to engage with or disconnect from a engaging tooth of a third workpiece; The clamp housing is used to mount the first workpiece so that the engaging teeth of the first workpiece can be engaged with or separated from another engaging tooth of the third workpiece; A second avoidance space for avoiding a combining tooth of the third workpiece is formed between the third combining tooth and the clamp housing.

6. The second clamping disc according to claim 5, characterized in that: When the third workpiece is located at the first position, the other coupling tooth of the third workpiece is disconnected from the coupling tooth of the first workpiece, and the one coupling tooth of the third workpiece is disconnected from the third coupling tooth; When the third workpiece is located at the second position, the other coupling tooth of the third workpiece is disconnected from the coupling tooth of the first workpiece, and the one coupling tooth of the third workpiece is coupled with the third coupling tooth; When the third workpiece is located at the third position, another coupling tooth of the third workpiece is coupled with the coupling tooth of the first workpiece, and one coupling tooth of the third workpiece is coupled with the third coupling tooth; When the third workpiece is located at the fourth position, another coupling tooth of the third workpiece is coupled with the coupling tooth of the first workpiece, and one coupling tooth of the third workpiece is disconnected from the third coupling tooth.

7. The second clamping disc according to claim 5, characterized in that: The second pliers disc further includes a fourth engaging tooth extending from the second end surface of the pliers disc housing along the axial direction of the pliers disc housing; The fourth coupling teeth are used to couple with or disconnect from the coupling teeth of the fourth workpiece.

8. The second clamping disc according to claim 7, characterized in that: The caliper housing includes a first support portion, an arc portion extending from one end of the first support portion in the axial direction, and a second support portion extending from one end of the arc portion in the axial direction; The arc portion cooperates with the second supporting portion to form an accommodating space for mounting the first workpiece; The third protrusion is provided on the second supporting portion, and the fourth combining tooth is provided on the first supporting portion.

9. A differential assembly, characterized in that: comprising a gear assembly, a first clamp disc according to any one of claims 1 to 4, and a second clamp disc according to any one of claims 5 to 8; The gear assembly is disposed in the second pliers disc; The first pliers disc is movably disposed on a first side of the second pliers disc in an axial direction, and is coupled to or disconnected from the second pliers disc and / or the gear assembly.

10. The differential assembly according to claim 9, characterized in that: The differential assembly further includes a differential housing and a differential end cover; the differential housing and the differential end cover are arranged opposite to each other in the axial direction, and the differential end cover is connected to the differential housing; The second caliper disc is rotatably mounted in the differential housing, and the first caliper disc is movably mounted in the differential end cover.

11. The differential assembly according to claim 10, characterized in that: The differential assembly further includes a locking toothed caliper disc, which is movably arranged on the second side of the second caliper disc in the axial direction and is coupled to or disconnected from the second caliper disc.

12. The differential assembly according to claim 11, characterized in that: The locking tooth pliers disc includes a second body and a sixth engaging tooth extending from one side of the second body in an axial direction; The sixth engaging tooth is used to engage with or disconnect from the fourth engaging tooth of the second clamp disc.

13. The differential assembly according to claim 11, characterized in that: The differential assembly further includes a first half-shaft and a second half-shaft; The first half shaft is disposed in the differential end cover and is connected to the first side of the gear assembly; The second half shaft is sequentially arranged in the locking caliper plate and the differential housing, and is connected to the second side of the gear assembly.

14. The differential assembly according to claim 13, characterized in that: The gear assembly includes a planet shaft, two planet gears, a first side shaft gear and a second side shaft gear; The planet shaft is arranged in the second clamp disc along the radial direction; The two planetary gears are arranged on the planetary shaft at intervals; The first side shaft gear is connected to the first side shaft, and the first side shaft gear is meshed with the first sides of the two planetary gears; The second half-shaft gear is connected to the second half-shaft, and the second half-shaft gear is engaged with the second sides of the two planetary gears. The second half-shaft gear is provided with a fifth combining tooth, and the fifth combining tooth is used to combine with or separate from the first combining tooth of the first clamp disk.

15. The differential assembly according to claim 14, characterized in that: A first guide groove is provided on the inner wall of the second clamp disc, and a first guide protrusion is provided on the first side gear, and the first guide protrusion matches the first guide groove; A second guide groove is provided on the inner wall of the differential end cover, and a second guide protrusion is provided on the second side gear, and the second guide protrusion matches the second guide groove.

16. The differential assembly according to claim 10, characterized in that: The differential assembly also includes a main reduction power gear; The main reduction gear is sleeved outside the differential housing and the differential end cover, and is connected to the differential housing and the differential end cover.

17. The differential assembly according to claim 11, characterized in that: The differential assembly further includes an execution structure; the execution structure is connected to the first caliper disc and / or the locking tooth caliper disc, and is used to adjust the position of the first caliper disc and / or the locking tooth caliper disc.

18. The differential assembly according to claim 17, characterized in that: The execution structure includes two execution components; one execution component is arranged on the differential end cover and is used to connect with the first caliper; Another of the actuator components is arranged on the reduction gear housing and is used for connecting with the locking jaw disc.

19. The differential assembly according to claim 18, characterized in that: The actuator assembly includes an electromagnetic clutch and an elastic member; In one of the actuator components, the electromagnetic clutch is provided on the differential end cover and is used to connect with the first caliper disc, one end of the elastic member is connected with the differential end cover, and the other end of the elastic member is connected with the first caliper disc; In another of the actuators, the electromagnetic clutch is arranged on the reduction gear housing for connecting with the locking caliper disc, one end of the elastic member is connected with the differential end cover, and the other end of the elastic member is connected with the locking caliper disc.

20. The differential assembly according to claim 19, wherein: The actuator further comprises a position sensor; the position sensor of the actuator is arranged on the first clamp; The position sensor of the other actuator is arranged on the locking jaw disc.

21. The differential assembly according to claim 19, wherein: The electromagnetic clutch includes a push piece, a magnetic ring and a coil; The pushing member includes a pushing plate and a slider; the pushing plate is connected to the first clamp plate or the locking clamp plate, and one end of the slider is connected to the pushing plate; the magnetic ring is connected to the slider; The coil is arranged opposite to the magnetic ring and is used to drive the magnetic ring to move.

22. The differential assembly according to claim 18, wherein: The execution assembly includes a motor and a worm gear; In one of the actuator components, the motor is disposed on the differential end cover, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the first clamp; In another of the actuator components, the motor is arranged on the differential housing, one end of the worm gear is connected to the output end of the motor, and the other end of the worm gear is connected to the locking pliers disc.

23. An automobile, characterized in that: Including the differential assembly according to any one of claims 9 to 22.

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