CN206427018U - A kind of electric car halting mechanism - Google Patents

Abstract

The utility model discloses a kind of electric car halting mechanism, including brake monitor, motor (1), cylinder lever connecting rod (2), leaf spring (3), ratchet (4) and ratchet (5), shifting shaft (11) is provided with the output end of the motor (1), brake disc (12) is provided with the shifting shaft (11)；The cylinder lever connecting rod (2) is provided with block (21) and pushing block (22), and energy-stored spring (23) is provided between the block (21) and pushing block (22)；Brake monitor starts motor (1) according to road speed, and motor (1) is finally driven and gives ratchet (5), the engagement between control ratchet (5) and ratchet (4).The utility model starts motor using brake monitor, is transformed into P gears by motor control brake disc, then drive pushing block ratchet is engaged with ratchet, on the premise of gear destruction is reduced, braking smoothly purpose is reached, amount of parts is reduced, it is simple in construction, it is with low cost.

Description

A kind of electric car halting mechanism

Technical field

The utility model is related to electric vehicle transmission technical field, more particularly to a kind of electric car halting mechanism.

Background technology

The popular P grades of halting mechanisms manually of current electric car on the market, especially hybrid electric vehicle, manual P grades must P grades are hung after stopping again, so being hung in the case of being easy to appear in also without completely stopping into P grades, the parts such as gear are caused Reduced lifetime even damage.

Utility model content

The technical problems to be solved in the utility model there is provided one kind and both be avoided that gearbox gear was damaged, and can improve The electric car halting mechanism of braking ability.

The technical solution of the utility model is as follows：

A kind of electric car halting mechanism, including brake monitor, motor, cylinder lever connecting rod, leaf spring, ratchet and pawl, it is described Brake monitor and motor connection, are provided with shifting shaft in the output end of the motor, brake disc, institute are provided with the shifting shaft The one end and leaf spring for stating brake disc are connected and fixed, and the other end is then installed with cylinder lever connecting rod；The cylinder lever connecting rod provided with block and Pushing block, guide cylinder is arranged with the lateral surface of the pushing block, and energy-stored spring, the energy storage bullet are provided between the block and pushing block Correspondence position of the two ends of spring respectively with block and pushing block is abutted；The lateral surface of described pushing block one end is provided with the conical surface, the conical surface Abut, the other end of the ratchet engages fixation with correspondence position on ratchet, be provided with back on the ratchet with one end of ratchet Position spring, brake monitor starts motor according to road speed, and motor drives cylinder lever connecting rod, is finally driven to ratchet, controls spine Engagement between pawl and ratchet.

Using above structure, selector shaft and brake disc rotating Vortex are moved by motor rotational band, until leaf spring is connected to P gears At the position of correspondence brake disc, now, the cylinder lever connecting rod being connected with brake disc promotes to the right block, compressed energy-storage spring, energy storage Spring promotes pushing block again under elastic force effect, and pushing block is moved in guide cylinder, in moving process, is connected to the ratchet edge on pushing block Cone structure rotates displacement, and the other end of ratchet is moved to ratchet direction, is engaged until with ratchet, because ratchet is It is fixedly connected with transmission countershaft, when ratchet does not turn or rotating speed is minimum, realizes that P keeps off park lock, return spring makes spine Pawl rotates more stable, it is to avoid be linked into the situation that can occur " beating tooth " by force, effectively protects the gear in speed changer, extends Service life, reduces amount of parts, simple in construction, with low cost.

In order that the clamping between leaf spring and brake disc is more smooth, preferably, one end of the brake disc is provided with four Teeth groove, the leaf spring is provided with roller, and the teeth groove of the roller and correspondence position is connected and fixed.

In order that the elasticity transmission of brake force is more stable, preferably, one end of the pushing block is provided with jack, the storage Energy spring is inserted in the jack, and one end of the energy-stored spring is abutted with the left end of block, and the other end is abutted with the bottom hole of jack.

In order to simplify structure, while being easy to the mobile cooperation between ratchet and pushing block, preferably, the one of the guide cylinder Side be provided with bar-shaped trough, one end of the ratchet is stretched into the bar-shaped trough, and is abutted with the conical surface of pushing block, the other end of the ratchet and The teeth groove engagement of correspondence position is fixed on ratchet.

In order to prevent ratchet to be axially moved in the presence of a tensile force, while limiting the moving direction of return spring, surely Determine the rotation direction of ratchet, preferably, being equipped with alignment pin on the ratchet, the side of the ratchet is provided with stopper slot, Return spring is arranged with vertically on the alignment pin, the upper end of the return spring has protruded horizontally up extension, lower end level Lower extension is extended with, the upper extension is connected with gearbox body, and the lower extension is embedded in stopper slot.

Beneficial effect：The utility model starts motor using brake monitor, and P gears are transformed into by motor control brake disc, Drive pushing block ratchet is engaged with ratchet again, on the premise of gear destruction is reduced, reach braking smoothly purpose, reduce zero Number of components, it is simple in construction, it is with low cost.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of block, pushing block, energy-stored spring and ratchet.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Fig. 1 and Fig. 2, the utility model is by brake monitor (rectangular parallelepiped structure to show) in Fig. 1, motor 1, even The composition such as pull bar 2, leaf spring 3, ratchet 4 and ratchet 5 is connect, the brake monitor is connected with motor 1, in the output of the motor 1 End is provided with shifting shaft 11, brake disc 12 is provided with the shifting shaft 11, one end of brake disc 12 is provided with four teeth groove, the plate Spring 3 is provided with roller 31, and the teeth groove of the roller 31 and correspondence position connects and fixes, the other end of the brake disc 12 then company of being installed with Connect pull bar 2.

The cylinder lever connecting rod 2 is provided with block 21 and pushing block 22, and guide cylinder 24 is arranged with the lateral surface of the pushing block 22, Energy-stored spring 23 is provided between the block 21 and pushing block 22, one end of the pushing block 22 is provided with jack, the energy-stored spring 23 Insert in the jack, one end of the energy-stored spring 23 is abutted with the left end of block 21, and the other end is abutted with the bottom hole of jack.

The lateral surface of described one end of pushing block 22 is provided with the conical surface, and the side of the guide cylinder 24 is provided with bar-shaped trough, the ratchet 5 One end stretch into the bar-shaped trough, and abutted with the conical surface of pushing block 22, the other end of the ratchet 5 and correspondence position on ratchet 4 Teeth groove engagement is fixed.

Alignment pin 52 is equipped with the ratchet 5, the side of the ratchet 5 is provided with stopper slot 53, in the alignment pin 52 On be arranged with return spring 51 vertically, the upper end of the return spring 51 has protruded horizontally up extension 511, and lower end is protruded horizontally up There is lower extension 512, the upper extension 511 is connected with gearbox body, and the lower extension 512 is embedded in stopper slot 53 In.

Application method of the present utility model is as follows：

As shown in Fig. 1 to Fig. 2, during braking, brake monitor sends instruction and moves selector shaft 11 and braking by the rotational band of motor 1 The rotating Vortex of disk 12, until the roller 31 on leaf spring 3 is connected in the teeth groove of P gears correspondence brake disc 12, now, with brake disc 12 connected cylinder lever connecting rods 2, promote to the right block 21, and compressed energy-storage spring 23, energy-stored spring 23 is promoted again under elastic force effect Pushing block 22, pushing block 22 is moved in guide cylinder 24, in moving process, and the ratchet 5 being connected on pushing block 22 occurs along cone structure Rotation displacement, and the other end of ratchet 5 is moved to the direction of ratchet 4, engaged until with ratchet 4, because ratchet 4 is and speed changer What jackshaft was fixedly connected, when ratchet 4 does not turn or rotating speed is minimum, realize that P keeps off park lock, it is to avoid be linked into can occur by force The situation of " beating tooth ", effectively protects the gear in speed changer, extends service life；When releasing parked state, brake disc 12 Depart from roller 31, cylinder lever connecting rod 2 is moved back, and energy-stored spring 23 is stretched out, and ratchet 5 is left in the presence of return spring 51 on ratchet 4 Teeth groove, vehicle just can be driven to advance or retreat, during whole operation, return spring 51 is rotated on alignment pin 52 all the time, Because upper extension 511 is connected with gearbox body, the lower extension 512 is embedded in stopper slot 53, return spring 51 Reciprocating rotation two extensions can't be made to produce horizontal movement, the meshing error between ratchet 5 and ratchet 4 is small, stable Property it is high.

When stationary vehicle is motionless, or when speed is mobile less than default speed per hour (such as 3Km/h), the braking control on electric car Device processed will start motor 1, and drive cylinder lever connecting rod 2, make the block on ratchet 5 start to engage into the notch on ratchet 4, force Locking driving wheel, prevents vehicle from moving；When vehicle is moved in more than 3Km/h speed per hour, ratchet 5 is linked into ratchet 4 and can sent out by force Raw " beating tooth ", so that the ratchet 4 that ratchet 5 can be rotated is ejected, can prevent unexpected be linked into；When any one forward gear of selection, Brake monitor drives cylinder lever connecting rod 2 to drive pushing block 22 to depart from self-locking position, is aided in down by torsion spring 41, and ratchet 5 takes off with ratchet 4 Open, release parking.

The utility model reduces amount of parts, simple in construction, with low cost.

The non-description section of the utility model is consistent with prior art, and therefore not to repeat here.

Embodiment of the present utility model is these are only, the scope of the claims of the present utility model, every profit is not thereby limited The equivalent structure made with the utility model specification and accompanying drawing content, is directly or indirectly used in other related technology necks Domain, similarly within scope of patent protection of the present utility model.

Claims (5)

1. a kind of electric car halting mechanism, it is characterised in that：Including brake monitor, motor (1), cylinder lever connecting rod (2), leaf spring (3), ratchet (4) and ratchet (5), the brake monitor are connected with motor (1), are provided with and are changed in the output end of the motor (1) Gear shaft (11), is provided with brake disc (12), one end of the brake disc (12) and leaf spring (3) clamping are solid on the shifting shaft (11) Fixed, the other end is then installed with cylinder lever connecting rod (2)；The cylinder lever connecting rod (2) is provided with block (21) and pushing block (22), is pushed away described The lateral surface of block (22) is arranged with guide cylinder (24), and energy-stored spring (23), institute are provided between the block (21) and pushing block (22) Correspondence position of the two ends of energy-stored spring (23) respectively with block (21) and pushing block (22) is stated to abut；Described pushing block (22) one end Lateral surface be provided with the conical surface, the conical surface abuts with the one end of ratchet (5), and the other end of the ratchet (5) is corresponding with ratchet (4) Position engagement is fixed, and return spring (51) is provided with the ratchet (5), and brake monitor starts motor according to road speed (1), motor (1) drives cylinder lever connecting rod (2), is finally driven and gives ratchet (5), the engagement shape between control ratchet (5) and ratchet (4) State.

2. a kind of electric car halting mechanism according to claim 1, it is characterised in that：One end of the brake disc (12) is set There are four teeth groove, the leaf spring (3) is provided with roller (31), and the roller (31) and the teeth groove of correspondence position are connected and fixed.

3. a kind of electric car halting mechanism according to claim 1, it is characterised in that：One end of the pushing block (22) is provided with Jack, the energy-stored spring (23) is inserted in the jack, and one end of the energy-stored spring (23) is abutted with the left end of block (21), separately One end is abutted with the bottom hole of jack.

4. a kind of electric car halting mechanism according to claim 1, it is characterised in that：The side of the guide cylinder (24) is set Have bar-shaped trough, one end of the ratchet (5) is stretched into the bar-shaped trough, and is abutted with the conical surface of pushing block (22), the ratchet (5) it is another Fixation is engaged with the teeth groove of correspondence position on ratchet (4) in one end.

5. a kind of electric car halting mechanism according to claim 1, it is characterised in that：It is equipped with the ratchet (5) Alignment pin (52), the side of the ratchet (5) is provided with stopper slot (53), and return spring is arranged with vertically on the alignment pin (52) (51), the upper end of the return spring (51) has protruded horizontally up extension (511), and lower end has protruded horizontally up lower extension (512), the upper extension (511) is connected with gearbox body, and the lower extension (512) is embedded in stopper slot (53) In.