Clutch assembly and driving assembly

Abstract

The utility model discloses a clutch assembly and a driving assembly, and belongs to the technical field of vehicles. The clutch assembly comprises a movable connecting piece, and when the movable connecting piece is located at a right stop point, the right end of the movable connecting piece is connected with a spline of a transmission shaft; the suction assembly is used for driving the movable connecting piece to be connected with or disconnected from the spline of the transmission shaft; and the elastic piece provides opposite acting force with the suction assembly and is used for driving the movable connecting piece to be separated from or connected with the spline of the transmission shaft. The suction assembly and the elastic piece are matched to control the clutch action of the clutch assembly, so that the clutch assembly is simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a clutch component and a drive assembly. Background Art

[0002] In the drive assembly, the clutch assembly is used to engage or disengage the power transmission between the power element and the actuator. Generally, a clutch assembly can only complete the clutch connection at one place. When two clutch connections need to be completed, two clutch assemblies are required. The use of two clutch assemblies in the same device makes the structure of the drive assembly more complicated and larger in size, so it is necessary to further improve it. In addition, in the prior art, the structure of the drive clutch assembly used for engagement or disengagement is also relatively complicated, and it is also necessary to further improve it. Utility Model Content

[0003] The utility model aims to provide a clutch component, which adopts a suction component and an elastic member to cooperate to control the clutch action of the clutch component, so that the clutch component has a simple structure.

[0004] To achieve the above technical objectives, in a first aspect, an embodiment of the utility model provides a clutch assembly for engaging or disconnecting power transmission between a stator-rotor assembly and a wheel body; comprising:

[0005] A movable connecting member, when the movable connecting member is located at the right dead center, the right end of the movable connecting member is spline-connected to the transmission shaft;

[0006] A suction assembly, used to drive the movable connecting member to connect or disconnect with the spline of the transmission shaft;

[0007] The elastic member provides an opposite force to the suction assembly, and is used to drive the movable connecting member to disconnect or connect with the spline of the transmission shaft.

[0008] In some embodiments, when the movable connecting member is located at the left dead center, the left end of the movable connecting member is splined to the oil pump sleeve; the suction assembly is also used to drive the movable connecting member to connect or disconnect with the oil pump sleeve, and the elastic member and the suction assembly provide opposite forces to drive the movable connecting member to connect or disconnect with the oil pump sleeve.

[0009] In some embodiments, the left end of the movable connecting member is a spline sleeve structure, and a spline is arranged on the outer periphery of the oil pump shaft sleeve to cooperate and connect with the spline sleeve structure at the left end of the movable connecting member; the right end of the movable connecting member is a spline sleeve structure, and the left end of the transmission shaft is fixedly connected to the spline shaft to cooperate and connect with the spline sleeve structure at the right end of the movable connecting member.

[0010] In some embodiments, an elastic member is provided in the cavity of the spline sleeve structure, one end of the elastic member is fixedly connected to the inner wall of the cavity of the spline sleeve structure, and the other end of the elastic member is fixedly connected to the spline shaft. Under the elastic force of the elastic member, the spline sleeve structure at the right end of the movable connecting member is connected to the spline shaft.

[0011] In some embodiments, the suction component is an annular structure, and the suction component is sleeved on the outer periphery of the right end of the oil pump sleeve; after the suction component is energized, it can magnetically absorb the movable connecting member, so that the spline sleeve structure at the left end of the movable connecting member is connected to the spline on the outer periphery of the oil pump sleeve.

[0012] In some embodiments, a magnetic brake assembly is also included; the magnetic brake assembly includes a mounting plate and a magnetic brake base plate which are arranged at intervals and sleeved on the periphery of the transmission shaft, a magnetic brake pressure plate is arranged between the mounting plate and the magnetic brake base plate, a brake pad is arranged between the magnetic brake pressure plate and the magnetic brake base plate, and a magnetic brake spring and a magnetic brake coil are arranged on the mounting plate; the magnetic brake spring presses the magnetic brake pressure plate so that the magnetic brake pressure plate presses the brake pad, and the brake pad presses the magnetic brake base plate, so that the magnetic brake base plate brakes the brake pad, the magnetic brake spline sleeve and the transmission shaft; when the magnetic brake coil is energized, the magnetic brake coil magnetically adsorbs the magnetic brake pressure plate, so that the magnetic brake pressure plate releases the brake pad, and then the brake pad releases the magnetic brake base plate.

[0013] In some embodiments, a first elastic member is sleeved on the outer periphery of the movable connecting member, the left end of the first elastic member abuts against the shoulder of the movable connecting member, the right end of the first elastic member abuts against the rotor sleeve, the rotor sleeve abuts against the rotor bushing, the rotor sleeve is used to support the right end of the first elastic member, and the rotor bushing is used to sleeve the connection between the movable connecting member and the transmission shaft.

[0014] In some embodiments, the first elastic member is a sliding sleeve spring.

[0015] In some embodiments, the magnetic brake assembly also serves as an attraction assembly.

[0016] In a second aspect, an embodiment of the present invention further provides a drive assembly, comprising the aforementioned clutch assembly.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In the embodiment of the utility model, the clutch assembly includes: a movable connecting member, when the movable connecting member is located at the right dead center, the right end of the movable connecting member is connected to the spline of the transmission shaft; an attraction assembly, used to drive the movable connecting member to connect or disconnect with the spline of the transmission shaft; an elastic member, which provides an opposite force to the attraction assembly, and is used to drive the movable connecting member to disconnect or connect with the spline of the transmission shaft. The clutch assembly is controlled by the attraction assembly and the elastic member, so that the structure of the clutch assembly is simple.

[0019] When the movable connecting member is at the left dead center, the left end of the movable connecting member is spline-connected to the oil pump sleeve; when the movable connecting member is at the right dead center, the right end of the movable connecting member is spline-connected to the transmission shaft. Both ends of the movable connecting member can be spline-connected, so that the clutch assembly can achieve two-point clutching, thereby simplifying the structure of the drive assembly and reducing the volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the planar structure of the drive assembly in Embodiment 1 of the present utility model;

[0021] Figure 2 This is a schematic cross-sectional structural diagram of the drive assembly in Embodiment 1 of the present utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the first-stage planetary gear assembly in Example 1 of the utility model from a first angle;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the first-stage planetary gear assembly in Embodiment 1 of the utility model from a second angle;

[0024] Figure 5 This is a schematic diagram of the planar structure of the secondary planetary gear assembly in Example 1 of the utility model;

[0025] Figure 6 This is a schematic cross-sectional structural diagram of the magnetic brake assembly in Example 1 of the present utility model;

[0026] Figure 7 It is a cross-sectional structural schematic diagram of the clutch assembly in Embodiment 2 of the present utility model;

[0027] Figure 8 This is a schematic cross-sectional structural diagram of the drive assembly in Embodiment 3 of the present utility model;

[0028] In the figure: fixed housing 11, transmission housing 12, primary planetary gear assembly 21, first planetary gear 211, primary planet carrier 212, second sun gear 223, secondary planetary gear assembly 22, second planetary gear 221, inner gear ring 23, stator and rotor assembly 3, transmission shaft 31, elastic member 331, spline shaft 32, movable connecting member 33, first elastic member 332, rotor sleeve 333, rotor bushing 334, second elastic member 332a, suction assembly 34, magnetic brake assembly 35, oil pump assembly 4, oil pump sleeve 41, valve cover 42, cylinder bracket 5, oil cylinder 6, wheel body 7, mounting plate 3501, magnetic brake spring 3503, magnetic brake coil 3504, magnetic brake pressure plate 3506, brake pad 3507, magnetic brake spline sleeve 3508, magnetic brake bottom plate 3509, pin 3510, magnetic brake positioning sleeve 3511. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] like Figure 1-6 As shown, on the one hand, a driving assembly in this embodiment includes a housing, the housing includes a fixed housing 11 and a transmission housing 12 rotatably connected thereto, the wheel body 7 is fixedly sleeved on the transmission housing 12, and the driving device is built into the housing, drivingly connected to the transmission housing 12. The wheel body 7 and the transmission housing 12 are integrated, and the driving device directly drives the transmission housing 12 to rotate, thereby driving the wheel body 7 to rotate. Among them, the clutch assembly includes a movable connecting member 33, when the movable connecting member 33 is located at the left dead center, the left end of the movable connecting member 33 is spline-connected to the oil pump shaft sleeve 41; when the movable connecting member 33 is located at the right dead center, the right end of the movable connecting member 33 is spline-connected to the transmission shaft 31. Both ends of the movable connecting member 33 can be spline-connected, so that the clutch assembly can achieve two-point clutching, thereby simplifying the structure of the drive assembly and reducing the volume.

[0032] Specifically, the left end of the movable connecting member 33 is a spline sleeve structure, and a spline is provided on the outer periphery of the oil pump shaft sleeve 41 to cooperate with the spline sleeve structure at the left end of the movable connecting member 33; the right end of the movable connecting member 33 is a spline sleeve structure, and the left end of the transmission shaft 31 is fixedly connected to the spline shaft 32 to cooperate with the spline sleeve structure at the right end of the movable connecting member 33; an elastic member 331 is provided in the cavity of the spline sleeve structure, one end of the elastic member 331 is fixedly connected to the inner wall of the cavity of the spline sleeve structure, and the other end of the elastic member 331 is fixedly connected to the spline shaft 32. Under the elastic force of the elastic member 331, the spline sleeve structure at the right end of the movable connecting member 33 is connected to the spline shaft 32. Among them, the elastic member 331 is preferably a spring. The clutch assembly also includes an attraction assembly 34, which is an annular structure and is sleeved on the outer periphery of the right end of the oil pump shaft sleeve 41. After the attraction assembly 34 is energized, it can magnetically absorb the movable connecting member 33, so that the spline sleeve structure at the left end of the movable connecting member 33 is connected to the spline on the outer periphery of the oil pump shaft sleeve 41. The clutch assembly is controlled by the attraction assembly 34 and the elastic member 331, so that the clutch assembly has a simple structure.

[0033] Specifically, Figure 6 As shown, the drive assembly also includes a magnetic brake component 35; the magnetic brake component 35 includes a mounting plate 3501 and a magnetic brake bottom plate 3509 which are arranged at intervals and sleeved on the periphery of the transmission shaft 31, a magnetic brake pressure plate 3506 is arranged between the mounting plate 3501 and the magnetic brake bottom plate 3509, a brake pad 3507 is arranged between the magnetic brake pressure plate 3506 and the magnetic brake bottom plate 3509, and a magnetic brake spring 3503 and a magnetic brake coil 3504 are arranged on the mounting plate 3501; the magnetic brake spring 3503 presses the The magnetic brake pressure plate 3506 presses the brake pad 3507, and the brake pad 3507 presses the magnetic brake base plate 3509, so that the magnetic brake base plate 3509 brakes the brake pad 3507, the magnetic brake spline sleeve 3508 and the transmission shaft 31; when the magnetic brake coil 3504 is energized, the magnetic brake coil 3504 magnetically attracts the magnetic brake pressure plate 3506, so that the magnetic brake pressure plate 3506 releases the brake pad 3507, and then the brake pad 3507 releases the magnetic brake base plate 3509.

[0034] More specifically, a magnetic brake spline sleeve 3508 is sleeved on the transmission shaft 31, and a brake pad 3507 acts on the spline sleeve 3508 to brake the spline sleeve 3508 and the transmission shaft 31. The mounting plate 3501 and the magnetic brake bottom plate 3509 are fixedly connected to each other through a pin 3510, and a magnetic brake positioning sleeve 3511 is arranged between the mounting plate 3501 and the magnetic brake bottom plate 3509 to limit the distance between the two, and the middle part of the pin 3510 passes through the magnetic brake positioning sleeve 3511.

[0035] Specifically, the driving device includes a stator-rotor assembly 3, the stator in the stator-rotor assembly 3 is fixedly connected to the fixed housing 11, and the rotor in the stator-rotor assembly 3 is connected to the clutch assembly; the transmission housing 12 is connected to the transmission shaft 31; the clutch assembly is clutch-connected to the transmission shaft 31 to achieve connection or disconnection with the transmission shaft 31.

[0036] Specifically, the drive assembly also includes a gear reducer, which includes a primary planetary gear assembly 21 and a secondary planetary gear assembly 22 drivingly connected thereto, and the secondary planetary gear assembly 22 is drivingly connected to the transmission housing 12 to achieve two-stage reduction.

[0037] More specifically, if Figure 3-5 As shown, the transmission shaft 31 is keyed to the first sun gear (not shown) in the first-stage planetary gear assembly 21, the first sun gear is meshed with the first planetary gear 211 in the first-stage planetary gear assembly 21, the first planetary gear 211 is meshed with the inner gear ring 23, the inner gear ring 23 is fixedly connected to the stator in the stator-rotor assembly 3, and then drives the first-stage planet carrier 212 and the second sun gear 223 fixedly connected to the first-stage planet carrier 212. The second sun gear 223 is meshed with the second planetary gear 221 in the second-stage planetary gear assembly 22, the second planetary gear 221 is meshed with the inner gear ring 23, and the gear shaft of the second planetary gear 221 is fixedly connected to the transmission housing 12. In the above, the transmission shaft 31 is transmission-connected to the transmission housing 12 after being reduced in two stages by the first-stage planetary gear assembly 21 and the second-stage planetary gear assembly 22. In other embodiments, the inner gear ring 23 can be split into a first inner gear ring meshed with the first planetary gear 211, and a second inner gear ring meshed with the second planetary gear 221.

[0038] Specifically, the driving assembly further includes an oil pump assembly 4 , and the driving device is driven to connect to the oil pump assembly 4 via a clutch assembly to achieve clutch connection between the driving device and the oil pump assembly 4 .

[0039] More specifically, the oil pump assembly 4 includes an oil pump and an oil pump shaft, and an oil pump shaft sleeve 41 is sleeved on the oil pump shaft.

[0040] Specifically, the drive assembly further includes a cylinder bracket 5 fixedly mounted on the fixed housing 11, and a receiving gap for accommodating the wheel body 7 is provided between the bracket 5 and the transmission housing 12; a cylinder 6 is provided on the cylinder bracket 5, and the oil pump assembly 4 is hydraulically driven to connect the cylinder 6. The wheel body 7 is arranged in the receiving gap, so that the overall structure of the clutch assembly is compact.

[0041] Example 2

[0042] Different from Example 1, Figure 7As shown, the clutch assembly in this embodiment has been improved. A first elastic member 332 is sleeved on the outer periphery of the movable connecting member 33, and the first elastic member 332 is preferably a sliding spring. The left end of the first elastic member 332 abuts against the shoulder of the movable connecting member 33, and the right end of the first elastic member 332 abuts against the rotor sleeve 333, and the rotor sleeve 333 abuts against the rotor bushing 334. The rotor sleeve 333 is used to support the right end of the first elastic member 332, and the rotor bushing 334 is used to sleeve the connection between the movable connecting member 33 and the transmission shaft 31 to avoid radial displacement between the two. Both ends of the movable connecting member 33 can be splined, so that the clutch assembly can achieve two-point clutching, thereby simplifying the structure of the drive assembly and reducing the volume.

[0043] In this embodiment, the magnetic brake assembly 35 also serves as an attraction assembly. When the magnetic brake coil 3504 is energized, the magnetic brake assembly 35 releases the transmission shaft 31 and synchronously attracts the movable connecting member 33, so that the right end of the movable connecting member 33 is connected to the transmission shaft 31, and the first elastic member 332 is compressed; when the magnetic brake coil 3504 is de-energized, the magnetic brake assembly 35 presses the transmission shaft 31 to brake it, and the compressed first elastic member 332 pushes the movable connecting member 33 to move left, and the left end of the movable connecting member 33 is connected to the spline on the outer periphery of the oil pump shaft sleeve 41. The magnetic brake assembly 35 also serves as an attraction assembly, making the clutch assembly and the drive assembly structure containing the clutch assembly more streamlined. The use of the attraction assembly 34 and the first elastic member 332 to cooperate in controlling the clutch action of the clutch assembly makes the clutch assembly structure simple.

[0044] Example 3

[0045] Different from Example 1, Figure 8As shown, the clutch assembly in this embodiment is improved. The clutch assembly does not include the magnetic brake assembly 35. The pump shaft of the oil pump assembly 4 is connected to the spline shaft 32, the left end of the movable connecting member 33 can be spline-connected to the spline shaft 32, and the right end of the movable connecting member 33 can be connected to the oil pump sleeve 41, and the oil pump sleeve 41 is fixedly arranged on the valve cover 42. The suction assembly 34 is an annular structure, and the suction assembly 34 is sleeved on the periphery of the left end of the oil pump sleeve 41. A second elastic member 332a is sleeved on the outer periphery of the movable connecting member 33, and the second elastic member 332a is preferably a compression spring. The left end of the second elastic member 332a abuts against the shoulder of the movable connecting member 33, and the right end of the second elastic member 332a abuts against the sleeve, and the sleeve abuts against the suction assembly 34. After the suction component 34 is energized, it can magnetically absorb the movable connecting member 33, so that the spline sleeve structure at the left end of the movable connecting member 33 is connected to the spline on the outer periphery of the oil pump shaft sleeve 41, and the second elastic member 332a is compressed at the same time. After the suction component 34 is energized, the second elastic member 332a, under the action of the restoring force, pushes the left end of the movable connecting member 33 to be spline-connected with the spline shaft 32. Both ends of the movable connecting member 33 can be spline-connected, so that the clutch assembly can achieve two-point clutching, thereby simplifying the structure of the drive assembly and reducing the volume. The clutch assembly is simple in structure by using the suction component 34 and the second elastic member 332a to cooperate in controlling the clutch action of the clutch assembly.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A clutch assembly for engaging or disengaging power transmission between a stator-rotor assembly and a wheel body; characterized in that: include: A movable connecting member, when the movable connecting member is located at the right dead center, the right end of the movable connecting member is spline-connected to the transmission shaft; A suction assembly, used to drive the movable connecting member to connect or disconnect with the spline of the transmission shaft; The elastic member provides an opposite force to the suction assembly, and is used to drive the movable connecting member to disconnect or connect with the spline of the transmission shaft.

2. The clutch assembly according to claim 1, characterized in that: When the movable connecting member is located at the left dead center, the left end of the movable connecting member is spline-connected to the oil pump sleeve; the suction assembly is also used to drive the movable connecting member to connect or disconnect with the oil pump sleeve, and the elastic member and the suction assembly provide opposite forces to drive the movable connecting member to disconnect or connect with the oil pump sleeve.

3. The clutch assembly according to claim 2, characterized in that: The left end of the movable connecting member is a spline sleeve structure, and a spline is arranged on the outer periphery of the oil pump shaft sleeve to cooperate and connect with the spline sleeve structure at the left end of the movable connecting member; the right end of the movable connecting member is a spline sleeve structure, and the left end of the transmission shaft is fixedly connected to the spline shaft to cooperate and connect with the spline sleeve structure at the right end of the movable connecting member.

4. The clutch assembly according to claim 3, characterized in that: An elastic member is provided in the cavity of the spline sleeve structure, one end of the elastic member is fixedly connected to the inner wall of the cavity of the spline sleeve structure, and the other end of the elastic member is fixedly connected to the spline shaft. Under the elastic force of the elastic member, the spline sleeve structure at the right end of the movable connecting member is connected to the spline shaft.

5. The clutch assembly according to claim 4, characterized in that: The suction component is an annular structure, and the suction component is sleeved on the outer periphery of the right end of the oil pump sleeve; after the suction component is energized, it can magnetically absorb the movable connecting part, so that the spline sleeve structure at the left end of the movable connecting part is connected to the spline on the outer periphery of the oil pump sleeve.

6. The clutch assembly according to claim 5, characterized in that: It also includes a magnetic brake assembly; the magnetic brake assembly includes a mounting plate and a magnetic brake base plate which are arranged at intervals and sleeved on the periphery of the transmission shaft, a magnetic brake pressure plate is arranged between the mounting plate and the magnetic brake base plate, a brake pad is arranged between the magnetic brake pressure plate and the magnetic brake base plate, and a magnetic brake spring and a magnetic brake coil are arranged on the mounting plate; the magnetic brake spring presses the magnetic brake pressure plate, so that the magnetic brake pressure plate presses the brake pad, and the brake pad presses the magnetic brake base plate, so that the magnetic brake base plate brakes the brake pad, the magnetic brake spline sleeve and the transmission shaft; when the magnetic brake coil is energized, the magnetic brake coil magnetically attracts the magnetic brake pressure plate, so that the magnetic brake pressure plate releases the brake pad, and then the brake pad releases the magnetic brake base plate.

7. The clutch assembly according to claim 3, characterized in that: A first elastic member is sleeved on the outer periphery of the movable connecting member, the left end of the first elastic member abuts against the shoulder of the movable connecting member, the right end of the first elastic member abuts against the rotor sleeve, the rotor sleeve abuts against the rotor bushing, the rotor sleeve is used to support the right end of the first elastic member, and the rotor bushing is used to sleeve the connection between the movable connecting member and the transmission shaft.

8. The clutch assembly according to claim 7, characterized in that: The first elastic member is a sliding sleeve spring.

9. The clutch assembly according to claim 6, characterized in that: The magnetic brake assembly also serves as an attraction assembly.

10. A drive assembly, characterized in that: The invention comprises a clutch assembly as claimed in any one of claims 1 to 9.

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