CN202946585U - Brake device of advanced manufacturing technology (ATM) transmission - Google Patents
Brake device of advanced manufacturing technology (ATM) transmission Download PDFInfo
- Publication number
- CN202946585U CN202946585U CN 201220633855 CN201220633855U CN202946585U CN 202946585 U CN202946585 U CN 202946585U CN 201220633855 CN201220633855 CN 201220633855 CN 201220633855 U CN201220633855 U CN 201220633855U CN 202946585 U CN202946585 U CN 202946585U
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- Prior art keywords
- axle
- speed changer
- transmission
- bearing
- braking device
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Abstract
The utility model discloses a brake device of an advanced manufacturing technology (ATM) transmission. The brake device of the ATM transmission comprises an input shaft bearing cover, the input bearing cover is sleeved on an shaft in an empty mode and connected with a transmission shell, a piston is installed in an air cylinder of the input shaft bearing cover and is step-shaped, and three half round embossments evenly distributed are arranged in the position of a major diameter of the right side. One ends of three return springs abut against the corresponding half round embossments, and the other ends of the three return springs are installed in corresponding holes of the transmission shell. A bearing is installed in a center hole on the front end face of the transmission shell and provided with a locking groove on one side. Two sides of the bearing are of an open type, a locking ring is installed on the outer circle of the bearing, and a plurality of dual discs and friction plates are installed on the right side of the piston at intervals. Compared with the prior art, the brake device of the ATM transmission has the advantages of being compact in structure, small in occupied space, light in weight, good in generality, capable of meeting twin countershaft transmissions of different series, high in the integration level, reliable in performance, low in cost and good in economy.
Description
Technical field
The utility model relates to the automotive brake technical field, particularly a kind of AMT speed changer braking device.
Background technique
For the heavy-duty commercial vehicle AMT(electric control mechanical type automatic speed variator of main tank without synchronizer) for, in starting and shifting up operation, because the secondary part rotary inertia is large, self long deceleration time, can not meet the requirement of fast slewing, need to partly brake clutch driven plate, transmission input shaft, jack shaft etc.For satisfying the control requirement of Fast synchronization, need to increase a cover braking device, be abroad electromagnetic brake type as the AMT of Eaton break at present, be installed on side-draw power or power taking position, the end, adopting dust, to inspire confidence in company's break be electric-controlled pneumatic type, be installed on the jack shaft front end, and the employing oil pump is the friction plate fuel feeding.Domestic corporation such as People AMT brake structural are similar to ZF company, and to inspire confidence in company identical with adopting dust for control mode and mounting point.Fa Shite company break is installed as electric-controlled pneumatic type, is installed on end power taking place.From present use condition, basically can satisfy usage requirement, but also have some problems, as bigger than normal in volume weight, versatility is poor, as when mating different box, needs the part changed more, and it is shorter etc. that friction plate is subjected to the mounting point to affect the life-span.
The model utility content
The purpose of this utility model is to provide a kind of AMT speed changer braking device, to solve the problems of the technologies described above.
To achieve these goals, the utility model adopts following technological scheme:
A kind of AMT speed changer braking device comprises an axle bearing lid, and an axle bearing lid empty set is on an axle and connect case of transmission; In the cylinder of one axle bearing lid, piston is housed, described piston is step-like, and place, large footpath, right side is provided with three uniform semi-cylindrical hills, and three return spring one ends support corresponding semi-cylindrical hill, and the other end is installed in case of transmission corresponding hole; One bearing of wearing locking groove is installed in case of transmission front-end face center hole, and this bearing both sides are open; Described bearing outer ring is equipped with stop ring; Interval, described piston right side is equipped with some antithesis sheets and friction plate.
The utility model further improves and is: an axle bearing lid passes through reinforced skeleton oil seal with an axle; One axle bearing lid seals by liner with case of transmission.
The utility model further improves and is: described piston is pressed on the cylinder leftmost side by return spring when the cylinder stuffiness, do not contact adjacent antithesis sheet.
The utility model further improves and is: described piston when the cylinder stuffiness and the gap between adjacent antithesis sheet be 1.5mm.
The utility model further improves and is: place, large footpath, piston right side is evenly equipped with three semicircle breach, and this semicircle breach is 60 degree angles with semi-cylindrical hill simultaneously and evenly distributes; Three locating studs pass corresponding semicircle breach, and an end is arranged in an axle bearing lid corresponding hole, and the other end is arranged in case of transmission corresponding hole by interference fit.
The utility model further improves and is: the return port that is provided with connection antithesis sheet and friction plate installation cavity bottom case of transmission, and return port is communicated with the speed changer main tank, and this return port is higher than fuel head in the speed changer main tank.
The utility model further improves and is: the single-row radial ball bearing of described bearing for supplying fluid to flow through; The left side of single-row radial ball bearing is provided with platen, and the outer ring of single-row radial ball bearing is carried out axially locating by an axle bearing lid by platen; Be provided with an axle snap ring on the left of the inner ring of single-row radial ball bearing, platen and an axle snap ring have the gap in the axial direction; The inner ring right side of single-row radial ball bearing is provided with an axle dottle pin.
The utility model further improves and is: antithesis sheet and platen external diameter are provided with the semicircle breach that supplies locating stud and return spring to pass through.
The utility model further improves and is: the friction plate outside diameter is less than the antithesis sheet and get out of the way locating stud and return spring; The internal spline of friction plate coordinates with an axle external splines.
The utility model further improves and is: friction plate both sides are bonded with carbon fiber, and radial.
With respect to prior art, the utlity model has following advantage:
1, compact structure occupies little space, and is lightweight;
2, versatility is good, can satisfy the twin countershaft transmission of different series;
3, level of integration is high, reliable performance;
4, cost is low, good economy performance.
Description of drawings
Fig. 1 is a kind of AMT speed changer braking device of the utility model mounting point schematic diagram;
Fig. 2 is a kind of AMT speed changer of the utility model braking device plan view;
Fig. 3 is a kind of AMT speed changer of the utility model braking device left view;
Fig. 4 is a kind of AMT speed changer of the utility model braking device working principle schematic diagram.
Embodiment
Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of AMT speed changer of the utility model braking device 100 is installed on the transmission input shaft place, given speed changer is 16 grades of AMT speed changers, need to prove, this AMT speed changer braking device 100 is not subjected to the impact of speed changer box, on an axle external splines that just coordinates with the friction plate internal spline of its impact, although and an axle is of a great variety, but exactly this section size is unified, and this is mainly constant due to an axle bearing, the versatility requirement when this has satisfied design.
Below in conjunction with accompanying drawing, content of the present utility model is described in detail.
A kind of AMT speed changer of the utility model braking device 100 is comprised of break solenoid valve, break and corresponding gas circuit.Shown in Figure 2 is the plan view of a kind of AMT speed changer of the utility model braking device 100, one axle bearing lid 1 empty set is connected on case of transmission 3 on an axle 2 and by 6 M10 bolt (not shown)s, one axle bearing lid 1 and one axle 2 is realized sealing by reinforced outside framework oil seal 4, prevents that the fluid in speed changer from overflowing.One axle bearing lid 1 is realized sealing with case of transmission 3 by liner 5.One axle bearing covers 1 right side piston is housed, and the piston Internal and external cycle is realized sealing by O type circle 6, O type circle 7 respectively.It is step-like that piston is, and three uniform semi-cylindrical hills are made at place, large footpath, right side, is used for supporting return spring 8 and makes piston be positioned at the cylinder leftmost side when stuffiness, do not contact antithesis sheet 9, and the gap is in the 1.5mm left and right, to prevent unnecessary braking.Place, large footpath, piston right side is also uniform three semicircle breach, this breach is 60 degree angle distributions with semi-cylindrical hill simultaneously.Semicircle breach is mainly used in making locating stud 10 to be installed on an axle bearing by this breach and covers in 1 corresponding hole, can prevent also simultaneously that piston radial from rotating, semi-cylindrical hill also plays this effect, three locating stud 10 right-hand members are installed on case of transmission 3 by interference fit, in addition, 3 return spring 8 right-hand members also are installed in case of transmission 3 corresponding hole.One single-row radial ball bearing 11 of wearing locking groove is installed in case of transmission 3 front-end face center holes, this bearing has been cancelled dust-proof cover, both sides are open, so that the fluid in speed changer is by bearing engaging friction sheet 12 and antithesis sheet 9 places, and the rotation by friction plate 12 is to be lubricated and to dispel the heat friction plate 12, antithesis sheet 9 etc., then fluid flows back to main tank by the return port 17 of case of transmission 3 bottoms, this backflow, and 17 positions are higher than fuel head in the speed changer main tank.Single-row radial ball bearing 11 outer rings are equipped with stop ring 13 and are realized the axially locating of single-row radial ball bearing 11 outer rings by an axle bearing lid 1 by platen 14, and the axially locating of an axle 2 is to realize by an axle snap ring 15, an axle dottle pin 16 and the shaft shoulder.Platen 14 and an axle snap ring 15 leave certain interval in the axial direction, guarantee that on the one hand an axle 2 both can not contact in the moving range that axially allows, and are also to be convenient to fluid from single-row radial ball bearing 11 engaging friction Pan12Chu on the other hand.To get out of the way locating stud 10 and return spring 8, make internal spline and coordinate with axle 2 external spliness, 12 liang of side bonds carbon fibre materials of friction plate by internal diameter less than antithesis sheet 9 for friction plate 12 outside diameters, and do radial, so that better to the friction surface fuel feeding, good cooling results, wearing and tearing reduce.Antithesis sheet 9 and platen 14 external diameters are made semicircle notch geometry as shown in Figure 3, so that by locating stud 10 and return spring 8.
Working procedure is as follows:
Fig. 2 is the utility model plan view, and shown in Figure 4 is the utility model working principle schematic diagram, and TCU accepts input speed and output speed constantly, and accepts the information such as engine speed and the speed of a motor vehicle by CAN.
When braking device is not worked, the braking device closed electromagnetic valve, suction port does not have air pressure, the return spring of three circle distribution acts on piston makes it be in leftward position, piston does not contact antithesis sheet and friction plate, also there is no positive pressure between friction plate and antithesis sheet, this moment, only three friction plates dallied with an axle, and braking device does not play braking action.
When TCU upgraded according to the parameters such as the speed of a motor vehicle and engine speed judgements needs, at first the AMT system took over the control of throttle, and the solenoid valve of solenoidoperated cluthes actuators, make the clutch actuating mechanism cylinder charge simultaneously, and clutch separates rapidly.Fully separately, the AMT system controls the solenoid valve action of gear-shifting actuating mechanism, make speed changer get back to neutral gear from gear, on clutch driven plate, an axle, jack shaft and two axles, free gear is as shown in Figure 1 with the free reduction of speed of certain rotating speed at this moment, and this rotating speed is greater than sliding sleeve rotating speed to be engaged.
Open the solenoid valve of braking device this moment, make the one axle bearing lid inflation of braking device cylinder set up air pressure, pushing piston moves right, piston overcomes the resistance pressing friction sheet 12 and antithesis sheet 9 of return spring 8, the frictional resistance moment that produce due to axial positive pressure this moment makes the secondary part rotating speed such as an axle reduce rapidly, when rotating speed drops to OK range (rotating speed relies on input shaft rotating speed Sensor monitoring), close the braking device solenoid valve, braking device quits work, system controls the gear shifting actuating mechanism action again, and speed changer is hung into next gear from neutral gear.
The solenoid valve of system's solenoidoperated cluthes actuators makes the clutch combination afterwards, clutch in conjunction with after, system gives back the driver to Throttle Opening Control power, thereby completes shift-up action one time.
Although the above is described the utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, can also make a lot of forms, within these all belong to protection of the present utility model.
Claims (10)
1. an AMT speed changer braking device, is characterized in that, comprises an axle bearing lid (1), and axle bearing lid (a 1) empty set goes up and connects case of transmission (3) at an axle (2); In the cylinder of one axle bearing lid (1), piston is housed, described piston is step-like, place, large footpath, right side is provided with three uniform semi-cylindrical hills, and three return spring (8) one ends support corresponding semi-cylindrical hill, and the other end is installed in case of transmission (3) corresponding hole; One bearing of wearing locking groove is installed in case of transmission (3) front-end face center hole, and this bearing both sides are open; Described bearing outer ring is equipped with stop ring (13); Interval, described piston right side is equipped with some antithesis sheets (9) and friction plate (12).
2. a kind of AMT speed changer braking device according to claim 1, is characterized in that, an axle bearing lid (1) seals by reinforced outside framework oil seal (4) with an axle (2); One axle bearing lid (1) seals by liner (5) with case of transmission (3).
3. a kind of AMT speed changer braking device according to claim 1, is characterized in that, described piston is pressed on the cylinder leftmost side by return spring (8) when the cylinder stuffiness, do not contact adjacent antithesis sheet (9).
4. a kind of AMT speed changer braking device according to claim 2, is characterized in that, described piston when the cylinder stuffiness and the gap between adjacent antithesis sheet (9) be 1.5mm.
5. a kind of AMT speed changer braking device according to claim 1, is characterized in that, place, large footpath, piston right side is evenly equipped with three semicircle breach, and this semicircle breach is spent the angle with semi-cylindrical hill 60 simultaneously and evenly distributed; Three locating studs (10) pass corresponding semicircle breach, and an end is arranged in axle bearing lid (a 1) corresponding hole, and the other end is arranged in case of transmission (3) corresponding hole by interference fit.
6. a kind of AMT speed changer braking device according to claim 1, it is characterized in that, the return port (17) that is provided with connection antithesis sheet (9) and friction plate (12) installation cavity of case of transmission (3) bottom, return port (17) is communicated with the speed changer main tank, and this return port (17) is higher than fuel head in the speed changer main tank.
7. a kind of AMT speed changer braking device according to claim 5, is characterized in that, the single-row radial ball bearing (11) of described bearing for supplying fluid to flow through; The left side of single-row radial ball bearing (11) is provided with platen (14), and the outer ring of single-row radial ball bearing (11) is covered (1) by an axle bearing and carried out axially locating by platen (14); Be provided with an axle snap ring (15) on the left of the inner ring of single-row radial ball bearing (11), platen (14) has the gap in the axial direction with an axle snap ring (15); The inner ring right side of single-row radial ball bearing (11) is provided with an axle dottle pin (16).
8. a kind of AMT speed changer braking device according to claim 7, is characterized in that, antithesis sheet (9) and platen (14) external diameter are provided with the semicircle breach that supplies locating stud (10) and return spring (8) to pass through.
9. a kind of AMT speed changer braking device according to claim 5, is characterized in that, friction plate (12) outside diameter is less than antithesis sheet (9) and get out of the way locating stud (10) and return spring (8); The internal spline of friction plate (12) coordinates with an axle (2) external splines.
10. a kind of AMT speed changer braking device according to claim 1, is characterized in that, friction plate (12) both sides are bonded with carbon fiber, and radial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633855 CN202946585U (en) | 2012-11-26 | 2012-11-26 | Brake device of advanced manufacturing technology (ATM) transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633855 CN202946585U (en) | 2012-11-26 | 2012-11-26 | Brake device of advanced manufacturing technology (ATM) transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946585U true CN202946585U (en) | 2013-05-22 |
Family
ID=48422290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220633855 Expired - Lifetime CN202946585U (en) | 2012-11-26 | 2012-11-26 | Brake device of advanced manufacturing technology (ATM) transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946585U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943828A (en) * | 2012-11-26 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
| CN114962506A (en) * | 2021-02-24 | 2022-08-30 | 广州汽车集团股份有限公司 | Measuring equipment for sliding resistance of friction plate |
-
2012
- 2012-11-26 CN CN 201220633855 patent/CN202946585U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943828A (en) * | 2012-11-26 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
| CN102943828B (en) * | 2012-11-26 | 2015-05-13 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
| CN114962506A (en) * | 2021-02-24 | 2022-08-30 | 广州汽车集团股份有限公司 | Measuring equipment for sliding resistance of friction plate |
| CN114962506B (en) * | 2021-02-24 | 2024-02-23 | 广州汽车集团股份有限公司 | Measuring equipment for sliding resistance of friction plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |