阅读说明：本技术 汽车变速器干式制动装置 (Automotive transmission dry-type braking device ) 是由 王豫 段福海 陈军 梁欢文 何思杰 于 2019-08-28 设计创作，主要内容包括：本发明公开了一种汽车变速器干式制动装置,钳体架内部设置活塞和制动盘,制动盘套装于变速器转轴,活塞的一端面离合地抵住制动盘的侧面,活塞的另一端面与钳体架的内壁形成活塞腔；当向活塞腔内压注或卸压液体时,使活塞产生往复动作,通过抵住或离开制动盘,以离合地传动制动盘,使变速器转轴被制动,实现实现结合-制动或分离-释放的工作过程,适用于新能源汽车变速器外置式干式制动,具有可靠性高、耗能小、离合响应快速、降低生产成本的特点。(The invention discloses a kind of automotive transmission dry-type braking devices, setting piston and brake disc inside caliper frame, brake disc is set in speed changer shaft, resists to an end face clutch of piston the side of brake disc, and the other end of piston and the inner wall of caliper frame form plunger shaft；When the pressure injection into plunger shaft or when unloading press liquid, piston is set to generate reciprocating action, by resisting or leaving brake disc, with clutch it is driven brake disc, it is braked speed changer shaft, it realizes combination-braking or separation-release course of work, is suitable for new-energy automobile speed changer external dry type braking, have the characteristics that high reliablity, less energy-consuming, clutch response quickly, reduce production cost.)

1. a kind of automotive transmission dry-type braking device, including the caliper frame for accommodating speed changer shaft, it is characterised in that: institute It states setting piston and brake disc, brake disc inside caliper frame to be axially reciprocal and be actively set in speed changer shaft, the one of piston Resist to end face clutch the side of brake disc；The other end of the piston and the inner wall of caliper frame form plunger shaft.

2. automotive transmission dry-type braking device according to claim 1, it is characterised in that: the brake disc and piston it Between main drag ring is set.

3. automotive transmission dry-type braking device according to claim 2, it is characterised in that: the one side of the brake disc Main drag ring and main liner disk are integrally assembled between piston, resist brake disc to main drag ring clutch, main liner disk resists piston.

4. automotive transmission dry-type braking device according to claim 1, it is characterised in that: the other side of the brake disc Secondary drag ring and secondary liner disk are integrally assembled between face and the inner wall of caliper frame, resist brake disc to secondary drag ring clutch.

5. automotive transmission dry-type braking device according to claim 1, it is characterised in that: the plunger shaft stores liquid Or gas.

6. automotive transmission dry-type braking device according to claim 1, it is characterised in that: the plunger shaft connection is hydraulic Pump.

7. automotive transmission dry-type braking device according to claim 1, it is characterised in that: the lateral wall of the caliper frame Guide pin is installed.

8. automotive transmission dry-type braking device according to claim 1, it is characterised in that: on the circumference of the brake disc Multiple double wedges for induction of testing the speed are set, velocity sensor is set at the brake disc of the caliper frame.

9. automotive transmission dry-type braking device according to claim 2, it is characterised in that: the periphery of the drag ring is set It is equipped with the convex block for guiding, the inner wall of caliper frame offers the axial gap with convex block cooperation.

10. automotive transmission dry-type braking device according to claim 4, it is characterised in that: the caliper frame is by cover It is constituted with cylinder body；Setting brake disc, drag ring and liner disk inside the cover, cylinder interior setting piston, piston and cylinder body Inner wall forms plunger shaft.

Technical field

The invention belongs to transmission mechanism braking equipments, are specifically related to a kind of brake apparatus applied to automotive transmission.

Background technique

What wet type was shifted gears in the shell of conventional transmissions mainly has manual shift fork speed changer MT, autoelectrinic selector fork to become Fast device AMT, hydraulic Wet-type friction slice automatic transmission AT and wet dual clutch transmission DCT, the master of shell outdoor dry-type braking There is manual dry clutch, in addition there are also part dry dual clutches.The shifting-fork gear-shifting time is longer, it is difficult to quickly Shift demand is responded, energy consumption is high for power interruption and shift, it is difficult to which hybrid power and the shift of pure electric vehicle fast intelligent need It asks, using wet friction is secondary and hydraulic system, leads to that transmission efficiency is low, hydraulic system energy consumption is big, at high cost, it is also difficult to Hybrid power and pure electric vehicle demand are adapted to, there are rotary inertias for the double clutches of dry type greatly, transmits the problems such as torque is limited.At present The new-energy automobile speed changer overwhelming majority adds synchronizer to shift gears using electronics shift fork, and shift time is longer, and power is interrupted phenomenon frequency Existing, shift pause and transition in rhythm or melody sense is serious.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of high reliablity, less energy-consuming, clutch response quickly, reduce production The automotive transmission dry-type braking device of cost.

In order to solve the above-mentioned technical problem, a kind of the technical solution adopted by the present invention are as follows: automotive transmission dry type braking dress It sets, including the caliper frame for accommodating speed changer shaft, setting piston and brake disc, brake disc can be axial inside the caliper frame It is set in reciprocating movement speed changer shaft, resists to an end face clutch of piston the side of brake disc；The piston it is another The inner wall of end face and caliper frame forms plunger shaft.

Further, main drag ring is set between the brake disc and piston.

Further, main drag ring and main liner disk are integrally assembled between the one side and piston of the brake disc, master rubs Resist brake disc with wiping ring clutch, main liner disk resists piston.

Further, secondary drag ring and pair are integrally assembled between the another side of the brake disc and the inner wall of caliper frame Liner disk resists brake disc to secondary drag ring clutch.

Further, the plunger shaft storage liquid or gas.

Further, the plunger shaft is connected to hydraulic pump.

Further, the lateral wall of the caliper frame is equipped with guide pin.

Further, multiple double wedges for induction of testing the speed provided circumferentially about of the brake disc, the system of the caliper frame Velocity sensor is set at Moving plate.

Further, the periphery of the drag ring is provided with the convex block for guiding, the inner wall of caliper frame offer with it is convex The axial gap of block cooperation.

Further, the caliper frame is made of cover and cylinder body；Setting brake disc, drag ring and lining inside the cover Piston, the inner wall formation plunger shaft of piston and cylinder body is arranged in disk, cylinder interior.

Implement above-mentioned technical proposal, since piston being arranged inside caliper frame, when the pressure injection into plunger shaft or when unloading press liquid, So that piston is generated reciprocating action and with clutch be driven brake disc by resisting or leaving brake disc, makes speed changer shaft It is dynamic, realize combination-braking or separation-release course of work.

Automotive transmission dry-type braking device is suitable for new-energy automobile speed changer external dry type braking, is also applied for new Energy automobile external motor type rotor lockable mechanism has the advantage that 1, is big in conjunction with torque, realizes that the transmission of large speed ratio combines And separation, meet two grades of current new-energy automobile or even the shift of multi-speed transmission large speed ratio difference requires；2, response is rapid, reliability It is consistent to execute the response time for height；3, the phenomenon that friction material irregular wear is greatly reduced guarantees the secondary braking effect of friction Fruit；4, volume is greatly reduced, and rotary inertia is small；5, drive mechanism is relatively simple, at low cost；6, separate when be lost it is minimum, no It is influenced by external environment.

Detailed description of the invention

Fig. 1 is the schematic illustration of automotive transmission dry-type braking device.

Fig. 2 is the exploded perspective structural schematic diagram of automotive transmission dry-type braking device.

In figure: 1- controller chip, 2- oil conservator, 3- hydraulic pump, 4- high pressure accumulator, 5- energy-storage pressure sensor, 6- Pressurizing valve, 7- brake-pressure sensor, 8- pressure-relief valve, 9- cylinder body, 10- cover, 11- pair drag ring, 12- pair liner disk, 13- master rub Wipe ring, the main liner disk of 14-, 15- brake disc, 16- bracket, 17- retaining ring, 18- piston, 19- sealing ring, 20- guide pin, 21- speed change Device shaft, 22- case of transmission, 23- velocity sensor, 24- guide pin fixing bolt, 25- cover fixing bolt, 26- retaining ring Fixing bolt, 27- dust cover, 28- bloop, 29- heat release hole, 30- double wedge, 31- radiating groove, 32- ventilation slot, 33- are axially lacked Mouthful, 34- is oriented to circular groove, 35- plunger shaft, 36- convex block.

Specific embodiment

Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.

As depicted in figs. 1 and 2, automotive transmission dry-type braking device is mainly by cylinder body 9, piston 18, cover 10, brake disc 15, drag ring and liner disk composition.

Case of transmission 22 stretches out speed changer shaft 21, the side of the case of transmission 22 around speed changer shaft 21 Mounting bracket 16 is provided with guiding circular groove 34 on bracket 16.It is provided with sealing ring 19 on cylinder body 9, piston 18 is placed in cylinder body 9 Among can be moved axially along cylinder body 9, secondary drag ring 11, brake disc 15 and main drag ring 13 are sequentially installed with inside cover 10. Cylinder body 9 and cover 10 are fixedly connected into caliper frame, and cylinder body 9 is cooperatively connected by guide pin 20 and guiding circular groove 34, make caliper frame It can be moved back and forth along guiding circular groove.Piston 18 is set in cylinder body 9, and 18 end face of piston and 9 inner sidewall of cylinder body form plunger shaft 35.

The side of secondary drag ring 11 is fixedly connected with secondary liner disk 12, secondary drag ring 11 and secondary liner disk 12 and speed changer shaft 21 With gap, there is convex block 36 on secondary 12 periphery of liner disk.The side of main drag ring 13 is fixedly connected with main liner disk 14, main 14 periphery of liner disk With convex block 36.The axial gap 33 being cooperatively connected with convex block 36 is provided on the inside of cover 10, axial gap 33 is equipped with noise reduction Piece 28, so that secondary drag ring 11 and main drag ring 13 can be axial reciprocating in piston 18 along axial gap.Brake disc 15 It is connect with speed changer shaft 21 by spline structure, brake disc 15 is consistent with 21 revolving speed of speed changer shaft, and brake disc 15 can be along axis To movement.

The end of speed changer shaft 21 is provided with retaining ring 17, retaining ring 17 is positioned at speed changer shaft end by key pin, and It is fixedly connected with speed changer shaft 21, retaining ring 17 limits brake disc 15 and is detached from speed changer shaft 21.

Controller chip 1 is sensed with hydraulic pump 3, pressurizing valve 6, pressure-relief valve 8, brake-pressure sensor 7, energy-storage pressure respectively Device 5 is electrically connected.Oil conservator 2, hydraulic pump 3, high pressure accumulator 4 pass sequentially through oil pipe connection composition hydraulic system, hydraulic system It is mounted directly and is integrated in automobile chassis.Pressurizing valve 6 is directly connected to high pressure accumulator 4, and pressure-relief valve 8 is directly connect with oil conservator 2, Brake-pressure sensor 7 is arranged between pressurizing valve 6 and cylinder body 9, and energy-storage pressure sensor 5 is installed on high pressure accumulator 4.

Controller chip 1 becomes for controlling pressurization or release of the hydraulic pump 3 to automotive transmission dry-type braking device, automobile Fast device dry-type braking device, which is realized, to be combined, brake or separates, discharges the course of work.

Distribution is provided with heat release hole 29 on the side of brake disc 15, is provided on secondary drag ring 11 and main drag ring 13 Radiating groove.Cover 10 is provided with ventilation slot 32, the opening face brake disc 15 of ventilation slot 32.It is arranged between guide pin 20 and bracket 16 There is dirt-proof boot 27.

Velocity sensor 23 is fixedly connected with cover 10, multiple double wedges 30 have been uniformly arranged on 15 circumference of brake disc, it will Velocity sensor 23 is set as 1.8~2.2mm, velocity sensor 23 and control in the spacing radially of brake disc 15 apart from double wedge Device chip 1 processed is electrically connected.

Automotive transmission dry-type braking device is installed on that transmission case is external, and the heat and dust generated in cohesive process is not Inside is influenced, detachable maintaining is convenient, and maintenance cost declines to a great extent.

Automotive transmission dry-type braking device main control strategies and main working process are as follows:

1, in conjunction with-braking.Energy-storage pressure sensor 5 detects that the hydraulic pressure value of high pressure accumulator 4 (is stored lower than accumulation of energy setting value Energy setting value is greater than braking setting value), controller chip 1 indicates that hydraulic pump 3 extracts brake fluid toward high pressure accumulator from oil conservator 2 4 are pressurized to setting value；After controller chip 1 receives control command, pressurizing valve 6 is opened, and pressure-relief valve 8 is closed, high-pressure brake Liquid enters in the plunger shaft of cylinder body 9, since piston 18 can only move axially, thus piston 18 high-pressure brake liquid effect under to the left It pushes main drag ring 13 and is bonded brake disc 15, due to the convex block and cover 10 of the main liner disk 14 being fixedly connected with main drag ring 13 Axial slideway be cooperatively connected, thus main drag ring 13 can only move axially；Since caliper frame is in guide pin 20 and bracket 16 It is oriented under the mating connection of circular groove, caliper frame can only move axially, and after main drag ring 13 touch brake disc 15 to the left, make counter Under firmly, caliper frame moves right, due to the axial direction of the convex block and cover 10 of the main liner disk 12 being fixedly connected with secondary drag ring 11 Slideway is cooperatively connected, thus secondary drag ring 11 can only move axially, thus under the promotion to the right of caliper frame, secondary drag ring 11 to The right side touch brake disc 15；As hydraulic coupling constantly increases in plunger shaft, the braking moment acted in brake disc 15 rubs in pair Constantly increase under the action of ring 11 and main drag ring 13, brake disc 15 is gradually braked, when the hydraulic coupling of plunger shaft reaches certain After value, brake disc 15 is braked completely, and brake-pressure sensor 7 detects that the hydraulic force value of plunger shaft is less than braking setting at this time Value, thus pressurizing valve 6 stays open, pressure-relief valve 8 remains turned-off, and the hydraulic force value in plunger shaft continues to improve, and works as brake pressure After the hydraulic force value that sensor 7 detects reaches braking setting value, controller chip 1 instructs pressurizing valve 6 to close, and pressure-relief valve 8 is kept It closes.If brake-pressure sensor 7 detects that (minimum limit value is higher than hydraulic force value lower than braking setting value less than minimum limit value Hydraulic force value when brake disc is braked completely), controller chip 1 instructs pressurizing valve 6 to open, and pressure-relief valve 8 remains turned-off, so that Hydraulic force value in plunger shaft is increased to braking setting value.If velocity sensor 23 detects that brake disc 15 rotates, and turns When dynamic speed reaches given threshold, controller chip 1 instructs pressurizing valve 6 to open, and pressure-relief valve 8 remains turned-off, and improves in plunger shaft Hydraulic force value, and then the clamping force for acting on secondary drag ring 11 and main drag ring 13 is continuously increased, the braking in brake disc 15 Torque constantly increases, and after velocity sensor 23 detects that brake disc 15 is braked completely, controller chip 1 instructs pressurizing valve 6 It closes, pressure-relief valve 8 remains turned-off.

2, separation-release.When brake disc 15 changes from on-position to release conditions, controller chip 1 is by control life Control pressure-relief valve 8 is enabled to open, pressurizing valve 6 is closed, and brake fluid flows back into oil conservator 2, the hydraulic force value of plunger shaft by pressure-relief valve 8 It reduces, since piston 18 can only move axially, and then main drag ring 13 moves right under the effect of flexible deformation restoring force, and master rubs Ring 13 is wiped to separate with 15 right end of brake disc, meanwhile, under reaction force, caliper frame is moved to the left, and secondary drag ring 11 becomes in elasticity It is moved to the left under the effect of shape restoring force, secondary drag ring 11 is separated with 15 left end of brake disc, when velocity sensor 23 detects braking After disk 15 rotates and reaches setting speed, controller chip 1 instructs pressure-relief valve 8 to close, and pressurizing valve 6 is closed, and completes braking Separation-release of disk 15.

In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.