CN210461469U

CN210461469U - Middle-placed motor one-way clutch structure for electric vehicle

Info

Publication number: CN210461469U
Application number: CN201921330200.8U
Authority: CN
Inventors: 吴舜翔; 庄国林; 刘修江; 施智慧; 徐洁航; 黄潮峰; 金亮
Original assignee: Jinhua Zhuoyuan Industry Co ltd
Current assignee: Jinhua Zhuoyuan Industry Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-05
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses an in put motor one way clutch structure for electric motor car, including motor casing, motor element, axis, bull tooth, middle tooth, motor element sets up in the motor casing, motor element includes the motor shaft, middle tooth with the motor shaft meshing, the bull tooth overlap in epaxial, the bull tooth with middle tooth meshing still includes one way clutch assembly, one way clutch assembly includes inner circle, outer lane, the inner circle outside is provided with the pawl, the outer lane inboard be provided with pawl complex ratchet, the pawl with the one-way joint of ratchet, the inner circle is connected epaxial, the outer lane periphery wall is provided with anti-tooth screw thread, the outer lane passes through anti-tooth screw thread with bull tooth threaded connection. The utility model discloses avoid not hard up and drop of clutch assembly, improved the security of riding.

Description

Middle-placed motor one-way clutch structure for electric vehicle

Technical Field

The utility model relates to an in put the motor in the electric motor car especially relates to an in put motor one way clutch structure in the electric motor car.

Background

At present, a one-way clutch of a middle-placed motor in the market mainly takes two forms of a ball type clutch and a one-way bearing, the one-way clutch is generally adopted due to the advantages of convenience in installation, simple structure and the like, but the clutch has poor load transfer capacity and potential safety hazard when the working condition is severe and large torque is transferred; and the traditional one-way clutch structure can cause the clutch failure in the riding process to generate potential safety hazards.

Disclosure of Invention

The utility model discloses relatively poor, the clutch inefficacy probably appears and defect such as potential safety hazard is produced to the in-process of riding to the clutch transmission load capacity who exists among the prior art, provide a new electric motor car with put motor one way clutch structure.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

the utility model provides a put motor one way clutch structure in electric motor car, includes motor casing, motor element, axis, bull tooth, middle tooth, motor element sets up in the motor casing, motor element includes the motor shaft, middle tooth with the motor shaft meshing, the bull tooth cover in epaxial, the bull tooth with middle tooth meshing still includes one way clutch assembly, one way clutch assembly includes inner circle, outer lane, the inner circle outside is provided with the pawl, the outer lane inboard be provided with pawl complex ratchet, the pawl with ratchet one-way joint, the inner circle is connected in epaxial, the outer lane periphery wall is provided with anti-tooth screw thread, the outer lane pass through anti-tooth screw thread with bull tooth threaded connection.

The motor shell plays a role in containing, so that the motor components, the middle shaft, the large teeth, the middle teeth and the like are reasonably distributed in the motor shell to play a role. The motor assembly that sets up passes through the rotation of tooth in the middle of the motor shaft drive, and middle tooth is used for driving big tooth anticlockwise rotation, realizes putting the operation of motor in the realization. The one-way clutch subassembly that sets up includes inner circle, outer lane, and the inner circle outside is provided with the pawl, and the outer lane inboard is provided with the ratchet with the one-way joint of pawl, and this separation and reunion structure can transmit bigger load, and then makes the motor safe handling under the abominable and big moment of torsion transmission circumstances of operating mode, and when big tooth anticlockwise rotation, the outer lane that links to each other with it also anticlockwise rotation along with it, and the one-way clutch subassembly was in free state this moment. The periphery wall of outer lane is provided with anti-tooth screw thread, and when the user foot pedal was ridden, one-way clutch subassembly was in the locking state, and the inner circle drove outer lane anticlockwise rotation, and the outer lane is through anti-tooth screw thread screw in big tooth to at the rotation in-process, the outer lane is more tight with big tooth is more rotatory, has avoided clutch subassembly not hard up and has come off, has improved the security of riding.

Preferably, in the above middle-placed motor one-way clutch structure for an electric vehicle, a limiting step is arranged at the bottom of the inner ring, and the limiting step is abutted against the outer ring.

The inner circle bottom is provided with spacing step, and the spacing step that sets up is inconsistent with the outer lane, plays fixed, limiting displacement to the outer lane, has avoided one-way clutch assembly's not hard up and has come off, has improved the security of the in-process of riding.

Preferably, in the above middle-placed motor one-way clutch structure for an electric vehicle, the inner ring is provided with an external spline, and the middle shaft is provided with an internal spline matched with the external spline.

The inner ring is provided with the external spline, the middle shaft is provided with the internal spline, the middle shaft and the inner ring form a spline connection through the internal spline and the external spline, the load which can be borne by the motor is increased, and the running precision of the motor is improved.

Preferably, in the above one-way clutch structure with a middle-placed motor for an electric vehicle, the number of the pawls is at least 4.

The number of the arranged pawls is 4 or more, so that the one-way clutch structure can bear larger load, and the use requirement under the condition of severe working conditions or large torque transmission is met.

Preferably, the middle-placed motor one-way clutch structure for the electric vehicle further comprises a controller and a torque sensor, wherein the torque sensor is arranged on the middle shaft, the controller is connected to the motor casing, and the torque sensor is connected with the controller.

The torque sensor is used for detecting the rotation speed of the middle shaft and sending the rotation speed of the middle shaft to the controller, and the controller is used for receiving, analyzing and receiving the rotation speed information of the middle shaft and adjusting the rotation speed of the motor.

Preferably, the middle-placed motor one-way clutch structure for the electric vehicle further comprises a controller mounting shell, the controller mounting shell is connected to the motor shell, and the controller is connected to the controller mounting shell.

The split type connection of the controller and the shell is realized through the controller mounting shell, the process requirements of parts can be reduced, the after-sale maintenance is facilitated, and the production and manufacturing cost and the after-sale maintenance cost are reduced.

Preferably, in the above mid-motor one-way clutch structure for an electric vehicle, a waterproof gasket is disposed between the controller mounting shell and the motor shell.

Be provided with waterproof pad between motor casing and controller installation shell, waterproof pad that sets up plays water proof, dust proof's effect, has improved the leakproofness in controller casing inner space, prevents that controller casing inner space from receiving the pollution.

Preferably, in the above middle-placed motor one-way clutch structure for an electric vehicle, a first bearing is arranged between the middle shaft and the motor casing, and a second bearing is arranged between the motor shaft and the motor casing.

The arranged bearings play the roles of reducing friction and improving the running precision of the machine.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural view of the middle one-way clutch assembly of the present invention.

Detailed Description

The invention will be described in further detail with reference to the accompanying figures 1-3 and the detailed description, but they are not intended to limit the invention:

example 1

As shown in fig. 1, 2, and 3:

a middle motor one-way clutch structure for an electric vehicle comprises a motor shell 6, a motor component 5, a middle shaft 7, a large gear 1 and a middle gear 3, the motor assembly 5 is disposed in a motor housing 6, the motor assembly 5 includes a motor shaft 51, the middle gear 3 is engaged with the motor shaft 51, the big gear 1 is sleeved on the middle shaft 7, the big teeth 1 are meshed with the middle teeth 3, the gear box also comprises a one-way clutch component 8, the one-way clutch component 8 comprises an inner ring 82 and an outer ring 81, a pawl 83 is arranged on the outer side of the inner ring 82, a ratchet 812 matched with the pawl 83 is arranged on the inner side of the outer ring 81, the pawl 83 is in one-way clamping connection with the ratchet 812, the inner ring 82 is connected to the middle shaft 7, the outer ring 81 periphery wall is provided with anti-thread 811, the outer ring 81 pass through anti-thread 811 with macrotooth 1 threaded connection.

When the power is on, the motor component 5 drives the middle tooth 3 to rotate through the motor shaft 51, the middle tooth 3 drives the large tooth 1 to rotate, the operation of the middle motor is realized, meanwhile, the large tooth 1 drives the outer ring 81 connected with the large tooth 1 to rotate anticlockwise, when the outer ring 81 rotates anticlockwise, the pawl 83 is separated from the ratchet 812, the one-way clutch component 8 is in a free state, and the inner ring 82 and the middle shaft 7 are kept static. When the man power is ridden, axis 7 drives inner circle 82 anticlockwise rotation, and inner circle 82 drives the outer lane 81 rotation through the one-way ratchet 812 of going into outer lane 81 of pawl 83 card, and outer lane 81 drives bull tooth 1 and rotates, accomplishes the operation of putting the motor in, and wherein outer lane 81 is in the bull tooth 1 through anti-tooth screw 811 screw in, and outer lane 81 drives bull tooth 1 pivoted in, can with bull tooth 1 more tight soon, play and prevent that one-way clutch subassembly 8 is not hard up, drop, avoid the effect of potential safety hazard.

Preferably, a limiting step 821 is provided at the bottom of the inner ring 82, and the limiting step 821 is abutted against the outer ring 81.

Preferably, the inner ring 82 is provided with an external spline 822, and the middle shaft 7 is provided with an internal spline 71 matched with the external spline 822.

Preferably, the number of the pawls 83 is at least 4.

Preferably, the electric vehicle further comprises a controller 2 and a torque sensor 9, wherein the torque sensor 9 is arranged on the middle shaft 7, the controller 2 is connected to the motor casing 6, and the torque sensor 9 is connected to the controller 2.

Preferably, the controller installation shell 4 is further included, the controller installation shell 4 is connected to the motor shell 6, and the controller 2 is connected to the controller installation shell 4.

Preferably, a waterproof gasket 61 is disposed between the controller mounting case 4 and the motor case 6.

Preferably, a first bearing 63 is disposed between the middle shaft 7 and the motor housing 6, and a second bearing 62 is disposed between the motor shaft 51 and the motor housing 6.

Specifically, when the motor is powered on, the motor assembly 5 realizes the operation of the centrally-mounted motor, meanwhile, the torque sensor 9 transmits the torque information of the middle shaft 7 to the controller 2, and then the controller 2 controls the rotating speed of the motor assembly 5, so that the monitoring and the adjustment of the overall speed of the motor are realized. The bottom of the inner ring 82 is provided with a limit step 821, and the provided limit step 821 is abutted against the outer ring 81 to fix and limit the outer ring 81.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a put motor one way clutch structure in electric motor car, includes motor casing (6), motor element (5), axis (7), bull tooth (1), middle tooth (3), motor element (5) set up in motor casing (6), motor element (5) include motor shaft (51), middle tooth (3) with motor shaft (51) meshing, bull tooth (1) cover on axis (7), bull tooth (1) with middle tooth (3) meshing, its characterized in that: still include one-way clutch subassembly (8), one-way clutch subassembly (8) include inner circle (82), outer lane (81), inner circle (82) outside is provided with pawl (83), outer lane (81) inboard be provided with pawl (83) complex ratchet (812), pawl (83) with ratchet (812) one-way joint, inner circle (82) are connected on axis (7), outer lane (81) periphery wall is provided with anti-thread (811), outer lane (81) pass through anti-thread (811) with bull tooth (1) threaded connection.

2. The mid-motor one-way clutch structure for the electric vehicle according to claim 1, characterized in that: the bottom of the inner ring (82) is provided with a limiting step (821), and the limiting step (821) is abutted to the outer ring (81).

3. The mid-motor one-way clutch structure for the electric vehicle according to claim 1, characterized in that: the inner ring (82) is provided with an external spline (822), and the middle shaft (7) is provided with an internal spline (71) matched with the external spline (822).

4. The mid-motor one-way clutch structure for the electric vehicle according to claim 1, characterized in that: the number of the pawls (83) is at least 4.

5. The mid-motor one-way clutch structure for the electric vehicle according to claim 1, characterized in that: the motor is characterized by further comprising a controller (2) and a torque sensor (9), wherein the torque sensor (9) is arranged on the middle shaft (7), the controller (2) is connected to the motor shell (6), and the torque sensor (9) is connected with the controller (2).

6. The mid-motor one-way clutch structure for the electric vehicle according to claim 5, characterized in that: still include controller installation shell (4), controller installation shell (4) are connected on motor casing (6), controller (2) are connected on controller installation shell (4).

7. The mid-motor one-way clutch structure for the electric vehicle according to claim 6, characterized in that: and a waterproof gasket (61) is arranged between the controller installation shell (4) and the motor shell (6).

8. The mid-motor one-way clutch structure for the electric vehicle according to claim 1, characterized in that: a first bearing (63) is arranged between the middle shaft (7) and the motor shell (6), and a second bearing (62) is arranged between the motor shaft (51) and the motor shell (6).