CN214197216U

CN214197216U - New energy automobile thoughtlessly moves gearbox parking mechanism assembly

Info

Publication number: CN214197216U
Application number: CN202022966453.3U
Authority: CN
Inventors: 柳沁; 戴磊
Original assignee: Shanghai Synetec Power System Co ltd
Current assignee: Shanghai Synetec Power System Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-14
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a new energy automobile thoughtlessly moves gearbox parking mechanism assembly, including the ratchet, with ratchet complex pawl, parking dog, parking actuating lever group and rotatable setting's parking rolling disc, parking actuating lever group include with the parking rolling disc be connected the parking actuating lever, with the pawl contacts and is used for controlling the pawl and carries out the parking actuating slider of rotatory and is used for applying the parking drive spring of elastic force to parking actuating slider, and parking actuating slider is located the inside of parking dog and parking actuating slider cover and locates on the parking actuating lever. The utility model discloses a new energy automobile thoughtlessly moves gear box parking mechanism assembly, through the cooperation of spacing spring roller and spacing groove, mechanical settlement one is greater than whole car impact inertia, is less than driving motor's the starting torque who starts the output moment of torsion again to prevent to go into the ratchet at the parking pawl mistake of whole car driving process, cause and beat the tooth between ratchet and the pawl, thereby influence whole car reliability and security.

Description

New energy automobile thoughtlessly moves gearbox parking mechanism assembly

Technical Field

The utility model belongs to the technical field of the new energy automobile, specifically speaking, the utility model relates to a new energy automobile thoughtlessly moves gearbox parking mechanism assembly.

Background

The parking mechanism of the hybrid gearbox of the new energy automobile is a key system related to the safety of the whole automobile, and the parking mechanism is required to be reliable and simple in design and easy to control. However, the existing new energy automobile hybrid transmission parking mechanism mostly realizes parking through the engagement of the pawl into the tooth groove of the ratchet wheel, the pawl is arranged and designed according to the structure of the transmission, the general shape is complex, the problem of tooth hitting between the ratchet wheel and the pawl due to the fact that the pawl is mistakenly inserted into the ratchet wheel exists in the driving process, and the reliability and safety of the whole automobile are poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a new energy automobile thoughtlessly moves gearbox parking mechanism assembly, the purpose prevents to go at driving in-process parking mechanism pawl mistake income ratchet.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: new energy automobile thoughtlessly moves gearbox parking mechanism assembly, including the ratchet, with ratchet complex pawl, parking dog, parking actuating lever group and the parking rolling disc of rotatable setting, parking actuating lever group include with the parking rolling disc be connected the parking actuating lever, with the pawl contacts and is used for controlling the pawl and carries out rotatory parking actuating slider and is used for applying the parking drive spring of elastic force to parking actuating slider, and parking actuating slider is located the inside of parking dog and parking actuating slider cover and locates on the parking actuating lever.

The parking rotating disc is connected with a parking driving shaft, and the parking driving shaft is connected with a parking driving motor.

The parking rotating disc is provided with a rotating disc driving groove for inserting the parking driving rod, a first limiting groove for embedding the limiting spring roller in a locking state and a second limiting groove for embedding the limiting spring roller in an initial unlocking state, and the limiting spring roller is arranged on the parking limiting spring.

The parking rotating disc is provided with a steering wheel limiting protrusion, and the rotating disc limiting protrusion is located between the first limiting groove and the second limiting groove.

The utility model discloses a new energy automobile thoughtlessly moves gear box parking mechanism assembly, through the cooperation of spacing spring roller and spacing groove, mechanical settlement one is greater than whole car impact inertia, is less than driving motor's the starting torque who starts the output moment of torsion again to prevent to go into the ratchet at the parking pawl mistake of whole car driving process, cause and beat the tooth between ratchet and the pawl, thereby influence whole car reliability and security.

Drawings

The description includes the following figures, the contents shown are respectively:

fig. 1 is an unlocking state diagram of a parking mechanism assembly for a hybrid transmission of a new energy vehicle in embodiment 1;

FIG. 2 is a locking state diagram of a parking mechanism assembly for a hybrid transmission of a new energy automobile in embodiment 1;

FIG. 3 is a structural section view of a driving block of a parking mechanism assembly for a hybrid transmission case of a new energy automobile in embodiment 1;

FIG. 4 is a structural sectional view of a parking rotating disc for a parking mechanism assembly of a hybrid transmission of a new energy automobile in embodiment 1;

labeled as: 1. a ratchet wheel; 101. a ratchet tooth groove; 102. ratchet teeth; 2. a pawl; 201. pawl teeth; 3. a return spring; 4. a parking rotation pin; 5. a parking stop bracket; 6. a parking stop block; 7. a parking actuating lever group; 701. a parking drive rod; 702. a parking drive spring; 703. a parking driving slider; 8. a parking rotating disc; 801. a rotating disk drive slot; 802. a first limit groove; 803. a second limit groove; 804. a rotating disc limiting bulge; 9. a parking drive shaft; 10. a parking limit spring; 1001. limiting the spring roller; 11. a parking drive motor;

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.

It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.

As shown in fig. 1-4, the utility model provides a new energy automobile thoughtlessly moves gearbox parking mechanism assembly, including ratchet 1, pawl 2, return spring 3, parking rotating pin 4, parking dog support 5, parking dog 6, parking actuating lever group 7, parking rolling disc 8, parking drive shaft 9, parking spacing spring 10 and parking driving motor 11, pawl 2 and parking rolling disc 8 are rotatable setting, and pawl 2 and parking rolling disc 8's rotation center line is perpendicular in the space. The parking driving lever group 7 includes a parking driving lever 701 connected to the parking rotary disk 8, a parking driving slider 703 contacting the pawl 2 and used for controlling the pawl 2 to rotate, and a parking driving spring 702 for applying an elastic force to the parking driving slider, wherein the parking driving slider 703 is located inside the parking stopper 6, and the parking driving slider 703 is sleeved on the parking driving lever 701.

As shown in fig. 4, the parking rotary disk 8 is provided with a rotary disk driving groove 801, a first limit groove 802, a second limit groove 803, and a rotary disk limit protrusion 804, the parking limit spring 10 is provided with a limit spring roller 1001, the parking limit spring 10 is used for applying an elastic force to the parking rotary disk 8, and the limit spring roller 1001 is in contact with the parking rotary disk 8.

As shown in fig. 1 and 2, the ratchet 1 is disposed on the housing and rotates around its own rotation center, the ratchet 1 is provided with a plurality of ratchet tooth grooves 101, the parking rotation pin 4 is fixedly disposed on the housing, the pawl 2 and the return spring 3 are disposed on the parking rotation pin 4 and can rotate around the parking rotation pin 4, the pawl 2 is provided with pawl teeth 201 which can be engaged with the ratchet tooth grooves 101, the pawl teeth 201 enter the ratchet tooth grooves 101 to engage with the ratchet tooth grooves 101 so that the ratchet 1 cannot rotate freely, the pawl teeth 201 disengage from the ratchet tooth grooves 101 so that the ratchet 1 can rotate freely, one end of the return spring 3 is elastically disposed on the housing, the other end of the return spring is elastically disposed on the pawl 2, and the return spring 3 provides a return torque for the pawl teeth 201 to disengage from the ratchet tooth grooves 101.

As shown in fig. 1 to 3, a parking drive slider 703 is provided on the parking drive lever 701, the parking drive slider 703 is slidable on the parking drive lever 701 in the lever length direction, one end of a parking drive spring 702 is elastically provided on the parking drive slider 703, and the other end thereof is elastically provided on the parking drive lever 701, so as to provide a restoring force for the parking drive slider 703 to slide with respect to the parking drive lever 701. Parking drive slider 703 has a drive surface in contact with pawl 2, the drive surface being a slanted plane, the drive surface and the direction of movement of parking drive slider 703 having an acute angle therebetween. The parking stopper 6 limits the parking driving slider 703, and when the parking driving slider 703 contacts the parking stopper 6, the parking driving slider 703 stops moving.

Parking dog 6 is fixed to be set up on the casing through parking dog support 5, the other end of pawl 2 relies on parking dog 6, it breaks away from the height to be used for restricting pawl tooth 201 and ratchet tooth's socket 101, the one end setting of parking actuating lever group 7 is on parking dog 6, the other end sets up on parking rolling disc 8, parking rolling disc 8 is fixed to be set up on parking drive shaft 9, spacing spring 10's one end of parking passes through spacing spring roller 1001 elasticity and sets up on parking rolling disc 8, the other end elasticity of parking spacing spring 10 sets up on the casing, the one end and the parking rolling disc 8 fixed connection of parking drive shaft 9, the other end and the parking driving motor 11 of parking drive shaft 9 are connected.

In an initial unlocking state, the parking driving motor 11 is in an unlocking position, the limiting spring roller 1001 is clamped in a second limiting groove 803 arranged on the parking rotating disc 8, the pawl 2 is in a separation state with the ratchet wheel 1 under the action of the return spring 3 and abuts against the parking stop block 6, and the ratchet wheel 1 can rotate freely.

Entering a locking state, electrifying the parking driving motor 11, rotating the parking driving motor 11 from an unlocking position to a locking position, driving the parking rotating disc 8 to rotate by a parking driving shaft 9 fixedly arranged on the parking driving motor 11, sliding out a limiting spring roller 1001 from a second limiting groove 803, sliding the limiting spring roller 1001 to a first limiting groove 802 after passing through a limiting protrusion 804 of the rotating disc, preventing the parking rotating disc 8 from rotating due to external factors by the aid of the parking limiting spring, driving the parking driving rod 701 to move by the rotating disc driving groove 801 at the other end of the parking limiting spring, driving the parking driving slider 703 to enter a parking stop block 6 under the pushing of the parking driving rod 701, and driving the parking slider 703 to contact with the pawl 2 so that the parking driving slider 703 can push the pawl 2 to rotate around a parking rotating pin 4.

When the pawl teeth 201 and the ratchet teeth 102 are on the tops, the rotation of the pawl 2 is blocked, the parking driving rod 701 still moves under the rotation action of the parking rotating disc 8, the parking driving slider 703 stores driving force by compressing the parking driving spring 702, once the ratchet 1 rotates, and the pawl teeth 201 and the ratchet teeth 102 are staggered, the parking driving slider 703 continues to push the pawl 2 to rotate under the driving of the parking driving spring 702, pushes the pawl teeth 201 to enter the ratchet tooth groove 101, and locks the ratchet 1 to achieve a locking state.

When the parking driving motor 11 needs to enter an unlocking state, the parking driving motor 11 is powered on, the parking driving motor 11 rotates from a locking position to an unlocking position, a parking driving shaft 9 fixedly arranged on the parking driving motor 11 drives a parking rotating disc 8 to rotate, a limiting spring roller 1001 slides out from a first limiting groove 802, the limiting spring roller 1001 slides into a second limiting groove 803 after passing through a rotating disc limiting bulge 804, the parking limiting spring can prevent the parking rotating disc 8 from rotating due to external factors, the parking driving rod 701 is driven by the rotating disc driving groove 801 to move at the other end, a parking driving rod group 7 withdraws a parking driving slide block 703 clamped in a pawl 2 and a parking block 6 under the dragging of the parking driving rod 701, the parking driving slide block is separated from the pawl 2, the pawl 2 reversely rotates under the action of the reset torque of a return spring 3, so that pawl teeth 201 are separated from a tooth groove 101, unlocking is achieved.

The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.

Claims

1. New energy automobile thoughtlessly moves gearbox parking mechanism assembly, including the ratchet and with ratchet complex pawl, its characterized in that: still include parking dog, parking actuating lever group and the parking rolling disc of rotatable setting, parking actuating lever group include with the parking rolling disc be connected the parking actuating lever, with the pawl contacts and is used for controlling the pawl and carries out the parking actuating slider that rotates and is used for applying the parking driving spring of elastic force to parking actuating slider, and parking actuating slider is located the inside of parking dog and parking actuating slider cover and locates on the parking actuating lever.

2. The new energy automobile hybrid transmission case parking mechanism assembly of claim 1, characterized in that: the parking rotating disc is connected with a parking driving shaft, and the parking driving shaft is connected with a parking driving motor.

3. The new energy automobile hybrid transmission parking mechanism assembly according to claim 1 or 2, characterized in that: the parking rotating disc is provided with a rotating disc driving groove for inserting the parking driving rod, a first limiting groove for embedding the limiting spring roller in a locking state and a second limiting groove for embedding the limiting spring roller in an initial unlocking state, and the limiting spring roller is arranged on the parking limiting spring.

4. The new energy automobile hybrid transmission case parking mechanism assembly of claim 3, characterized in that: the parking rotating disc is provided with a steering wheel limiting protrusion, and the rotating disc limiting protrusion is located between the first limiting groove and the second limiting groove.