CN111911567A - Friction plate lubricating mechanism for intermediate shaft brake of AMT (automated mechanical transmission) - Google Patents
Friction plate lubricating mechanism for intermediate shaft brake of AMT (automated mechanical transmission) Download PDFInfo
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- CN111911567A CN111911567A CN202010657639.2A CN202010657639A CN111911567A CN 111911567 A CN111911567 A CN 111911567A CN 202010657639 A CN202010657639 A CN 202010657639A CN 111911567 A CN111911567 A CN 111911567A
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- intermediate shaft
- friction
- brake
- friction plate
- dual
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
Abstract
The application relates to a lubricated mechanism of AMT gearbox jackshaft stopper friction disc belongs to gearbox technical field, includes: the transmission comprises a middle shaft, a dual plate, a friction plate and a transmission shell; the intermediate shaft is coaxially arranged in the gearbox shell and is rotationally connected with the gearbox shell through a bearing, a plurality of friction plates are sleeved on the intermediate shaft, an axial lubricating channel is arranged between the friction plates and the intermediate shaft, and the axial lubricating channel is used for introducing lubricating oil into the bearing; the plurality of dual plates and the plurality of friction plates are sequentially arranged in a cross mode, a radial lubricating channel is arranged between the dual plates and the friction plates which are mutually attached, the radial lubricating channel is communicated with the axial lubricating channel, an oil duct is formed in the shell of the transmission case, and the oil duct is communicated with the radial lubricating channel. The lubricating mechanism can enable the lubricating oil path of the intermediate shaft brake to flow circularly more smoothly, improve the heat dissipation efficiency of the friction plate, and ensure the stability of the friction coefficient of the friction plate and the service life of the friction plate.
Description
Technical Field
The application relates to the technical field of gearboxes, in particular to an AMT gearbox intermediate shaft brake friction plate lubricating mechanism.
Background
In an automatic Transmission (AMT), in an oil path circulating mechanism of a counter shaft brake of an existing AMT Transmission, when a counter shaft brake is in a braking released state (i.e., the counter shaft brake is in an unventilated state, and a brake piston is not inflated and compressed in the direction of the counter shaft), a gap exists between a dual plate, a friction plate, the brake piston and a Transmission housing. The lubricating oil of the gearbox enters the intermediate shaft brake through the oil duct, flows out from the gap between the dual plate, the friction plate and the gearbox shell and the gap between the friction plate and the intermediate shaft connecting spline, and finally enters the cylindrical roller bearing to form effective oil path circulation. In this state, heat generated by friction can be cooled through the circulating oil path, and the cylindrical roller bearing of the gearbox can also be lubricated.
However, in the braking state of the intermediate shaft brake (namely, in the ventilation state of the intermediate shaft brake, the brake piston is inflated and compressed towards the direction of the intermediate shaft), the dual plates, the friction plates, the brake piston and the gearbox shell are in the compressed state; gaps among the dual plates, the friction plates, the brake piston and the gearbox shell disappear, lubricating oil cannot flow into the cylindrical roller bearing through the gaps, and circulation of a lubricating oil path is blocked. The heat generated by the brake friction cannot be effectively dissipated in the braking state, and the cylindrical roller bearing cannot be effectively lubricated. This adversely affects the fatigue reliability and service life of the intermediate shaft brake and the cylindrical roller bearing.
The friction plate is connected with the intermediate shaft through a spline, the clearance between the friction plate and the intermediate shaft is small, lubricating oil flows difficultly through the clearance of the spline, effective oil path circulation cannot be formed, and heat generated by friction of the friction plate cannot be effectively dissipated; meanwhile, as the spline clearance is too small, lubricating oil flows smoothly, oil sludge is easily generated in the friction plate and the area around the spline, and lubricating oil carbonization caused by high temperature is easily generated, so that the deterioration of the lubricating condition is accelerated, and the friction plate is damaged.
Disclosure of Invention
The embodiment of the application provides an AMT gearbox jackshaft brake friction disc lubrication mechanism to solve among the prior art jackshaft brake braking heat that friction produced and can not effectively dispel under the braking state, cylindrical roller bearing also can not obtain effectively lubricated problem.
The embodiment of the application provides an AMT gearbox jackshaft brake friction disc lubrication mechanism, includes: the transmission comprises a middle shaft, a dual plate, a friction plate and a transmission shell;
the intermediate shaft is coaxially arranged in the gearbox shell and is rotationally connected with the gearbox shell through a bearing, a plurality of friction plates are sleeved on the intermediate shaft, an axial lubricating channel is arranged between the friction plates and the intermediate shaft, and the axial lubricating channel is used for introducing lubricating oil into the bearing;
the pair of the coupling pieces and the friction pieces are sequentially and alternately arranged, a radial lubricating channel is arranged between the pair of the coupling pieces and the friction pieces which are mutually attached, the radial lubricating channel is communicated with the axial lubricating channel, an oil duct is formed in the shell of the transmission, and the oil duct is communicated with the radial lubricating channel.
In some embodiments: the one end of jackshaft is equipped with the integral key shaft, the middle part of friction disc is equipped with the splined hole, the friction disc cover is established on the integral key shaft and is connected with the integral key shaft meshing, the splined hole is equipped with the oil groove, it is equipped with a plurality ofly to cross the oil groove, and is a plurality of cross the circumferencial direction equipartition range of oil groove edge splined hole, cross the oil groove with form between the integral key shaft the lubricated passageway of axial.
In some embodiments: the front surface and the back surface of the dual plate and/or the friction plate are respectively provided with a plurality of radial oil grooves, and the radial oil grooves on the front surface and the back surface of the dual plate and/or the friction plate are distributed in a staggered manner;
and the radial oil grooves between the mutually-fitted dual plates and the friction plates form the radial lubricating channel.
In some embodiments: the radial oil grooves are spiral, and the spiral directions of the radial oil grooves on the front surface and the back surface of the dual plate and/or the friction plate are opposite.
In some embodiments: inner rings are arranged in the middle of the dual sheets, the inner diameter of each inner ring is larger than the outer diameter of the middle shaft, and the radial oil grooves penetrate through the inner rings and the outer rings of the dual sheets;
the outer ring of the dual sheets is provided with a plurality of limiting bulges, a plurality of limiting grooves matched with the limiting bulges are arranged in the gearbox shell, the length direction of the limiting grooves is parallel to the axis of the intermediate shaft, and the dual sheets limit circular motion through the limiting grooves.
In some embodiments: a brake cylinder cover is arranged on the side face of the gearbox shell, a brake piston is arranged in a space between the gearbox shell and the brake cylinder cover, and the brake piston is used for driving the dual plate and the friction plate to do combination or separation action;
a compression space is formed between the brake piston and the brake cylinder cover, and the brake cylinder cover is provided with an air inlet communicated with the compression space.
In some embodiments: an axial hole is formed in the end part of the intermediate shaft, a spring is arranged in the axial hole, a bushing is sleeved on the spring, a steel ball is arranged in the middle of one end, close to the spring, of the brake piston, and the bushing is abutted against the steel ball;
and a sealing ring is arranged between the edge of the brake piston and the cylinder cover of the brake.
In some embodiments: the brake piston is provided with a counter bore for mounting the steel ball, the steel ball is positioned in the counter bore, and the depth of the counter bore is smaller than the diameter of the steel ball.
In some embodiments: the bearing is a cylindrical roller bearing.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a friction plate lubricating mechanism for an intermediate shaft brake of an AMT (automated mechanical transmission), as the intermediate shaft of the lubricating mechanism is coaxially arranged in a gearbox shell and is rotationally connected through a bearing, a plurality of friction plates are sleeved on the intermediate shaft, an axial lubricating channel is arranged between the friction plates and the intermediate shaft, and the axial lubricating channel is used for introducing lubricating oil into the bearing; the plurality of dual plates and the plurality of friction plates are sequentially arranged in a cross mode, a radial lubricating channel is arranged between the dual plates and the friction plates which are mutually attached, the radial lubricating channel is communicated with the axial lubricating channel, an oil duct is formed in the shell of the transmission case, and the oil duct is communicated with the radial lubricating channel.
Therefore, no matter whether the intermediate shaft brake of the lubricating mechanism is in a braking state or not, the lubricating oil entering the oil duct can sequentially enter the radial lubricating channel to cool the friction plates and the dual plates, then enters the axial lubricating channel to lubricate the bearing, and the lubricating oil after lubricating the bearing flows into the shell of the gearbox to be circularly lubricated again. The lubricating oil path of the intermediate shaft brake can flow more smoothly in a circulating manner, oil sludge formed around the spline of the friction plate is prevented from blocking the oil path and reducing the friction coefficient of the friction plate, the heat dissipation efficiency of the friction plate is improved, and the stability of the friction coefficient of the friction plate and the service life of the friction plate are ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a perspective view of the construction of a doublet according to an embodiment of the present application;
FIG. 3 is a front view of the dual patch configuration of an embodiment of the present application;
FIG. 4 is a perspective view of a friction plate according to an embodiment of the present application;
FIG. 5 is a front view of the friction plate construction of an embodiment of the present application.
Reference numerals:
1. an intermediate shaft; 2. a transmission housing; 3. a bearing; 4. a friction plate; 5. a dual sheet; 6. an oil passage; 7. a brake cylinder head; 8. a brake piston; 9. a spring; 10. a bushing; 11. a steel ball; 12. compressing the space; 13. a seal ring 41, a spline hole; 42. an oil passing groove; 51. an inner ring; 52. a radial oil groove; 53. and a limiting bulge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides an AMT gearbox jackshaft brake friction disc lubrication mechanism, and it can solve among the prior art jackshaft brake braking friction produced heat and can not effectively dispel under the braking state, and cylindrical roller bearing also can not obtain effectively lubricated problem.
Referring to fig. 1, the embodiment of the application provides an AMT gearbox intermediate shaft brake friction plate lubrication mechanism, which comprises: the transmission comprises an intermediate shaft 1, a dual plate 5, a friction plate 4 and a transmission shell 2; the intermediate shaft 1 is coaxially arranged in the gearbox shell 2, the intermediate shaft 1 is rotatably connected with the gearbox shell 2 through a bearing 3, the bearing 3 is preferably but not limited to a cylindrical roller bearing, an inner ring of the bearing 3 is sleeved on the intermediate shaft 1, and an outer ring of the bearing 3 is matched in the gearbox shell 2.
A plurality of friction plates 4 are sleeved on the intermediate shaft 1, and the friction plates 4 rotate synchronously with the intermediate shaft 1 and can move linearly along the axis direction of the intermediate shaft 1. An axial lubrication channel (not shown in the figure) is arranged between the friction plates 4 and the intermediate shaft 1, and is used for introducing lubricating oil into the bearing 3, and the lubricating oil enters the bearing 3 through the axial lubrication channel for sufficient lubrication.
The plurality of dual plates 5 and the plurality of friction plates 4 are sequentially arranged in a crossed manner, the friction plates 4 are arranged between every two adjacent dual plates 5, and when the dual plates 5 and the friction plates 4 are mutually attached and pressed tightly, friction is generated between the dual plates 5 and the friction plates 4, and braking force is generated on the intermediate shaft 1. A radial lubrication channel (not shown in the figure) is arranged between the counter piece 5 and the friction plate 4 which are attached to each other, and is used for introducing lubricating oil (or cooling liquid) between the counter piece 5 and the friction plate 4, and the lubricating oil cools the counter piece 5 and the friction plate 4 through the radial lubrication channel.
The radial lubricating channel is communicated with the axial lubricating channel, an oil duct 6 is arranged on the gearbox shell 2, and the oil duct 6 is communicated with the radial lubricating channel. The lubricating oil in the oil duct 6 sequentially enters the radial lubricating channel to cool the dual plate and the friction plate 4, then enters the axial lubricating channel to fully lubricate the bearing 3, and finally flows into the inner cavity of the gearbox shell 2 and circulates to the oil duct 6 again to form a circulating cooling and lubricating oil path.
No matter the jackshaft stopper of the application is in the brake state, the lubricating oil that gets into in the oil duct 6 can get into radial lubrication channel in proper order and cool off a plurality of friction discs 4 and a plurality of dual piece 5, then gets into axial lubrication channel and lubricate bearing 3, carries out circulative cooling and lubrication once more in lubricating oil inflow transmission housing 2 after lubricating bearing 3. The lubricating oil path of the intermediate shaft brake can flow more smoothly in a circulating manner, oil sludge formed around the spline of the friction plate 4 is prevented from blocking the oil path and reducing the friction coefficient of the friction plate 4, the heat dissipation efficiency of the friction plate 4 is improved, and the stability of the friction coefficient of the friction plate 4 and the service life of the friction plate 4 are ensured. Meanwhile, the bearing 3 is lubricated and protected, the fatigue resistance of the bearing 3 is improved, and the service life of the bearing is prolonged.
In some alternative embodiments: referring to fig. 1, 4 and 5, an embodiment of the application provides an AMT gearbox intermediate shaft brake friction plate lubrication mechanism, one end of an intermediate shaft 1 of the lubrication mechanism is provided with a spline shaft, and the spline shaft and the intermediate shaft 1 are coaxial and are of an integrally machined structure. The middle part of friction disc 4 is equipped with splined hole 41, and splined hole 41 is used for the friction disc 4 cover to establish on the integral key shaft and be connected with the integral key shaft meshing. The spline hole 41 is engaged with the spline shaft to make the friction plate 4 move linearly along the axial direction of the intermediate shaft 1, and the friction plate 4 is positioned circumferentially to make the friction plate 4 and the intermediate shaft 1 rotate synchronously.
The spline holes 41 of the friction plates 4 are provided with oil passing grooves 42, the number of the oil passing grooves 42 is preferably, but not limited to, four, and the four oil passing grooves 42 penetrate through the front and back surfaces of the friction plates 4. The four oil passing grooves 42 are uniformly distributed and arranged along the circumferential direction of the spline hole, axial lubrication channels are formed between the four oil passing grooves 42 and the spline shaft, and lubricating oil enters the bearing 3 through the four axial lubrication channels formed by the oil passing grooves 42 and the spline shaft. The cross-sectional size of the oil passing groove 42 is set according to actual design requirements, so that the oil passing groove 42 can smoothly flow lubricating oil and the bearing 3 can be sufficiently lubricated.
In some alternative embodiments: referring to fig. 1 to 3, the embodiment of the present application provides an AMT gearbox intermediate shaft brake friction plate lubrication mechanism, a plurality of radial oil grooves 52 are respectively formed on the front surface and the back surface of a dual plate 5 of the lubrication mechanism, and the plurality of radial oil grooves 52 on the front surface and the back surface of the dual plate 5 are distributed in a staggered manner, so that the structural rigidity of the dual plate 5 is ensured, and meanwhile, the depth of the radial oil grooves 52 can be increased, and the cooling effect of lubricating oil is ensured.
The radial oil grooves 52 are preferably, but not limited to, spiral shapes, the spiral angle of the radial oil grooves 52 is 20-30 degrees, and the spiral directions of the radial oil grooves 52 on the front surface and the back surface of the dual plate 5 are opposite, so that lubricating oil can actively enter the radial oil grooves 52 during the rotation of the friction plate 4 to form active circulation lubrication.
In some alternative embodiments: referring to fig. 2 and 3, in the friction plate lubrication mechanism for the intermediate shaft brake of the AMT transmission, an inner ring 51 is arranged in the middle of a plurality of dual plates 5 of the lubrication mechanism, the inner diameter of the inner ring 51 is larger than the outer diameter of the intermediate shaft 1, the dual plates 5 are sleeved on the intermediate shaft 1 and are in clearance fit with the intermediate shaft 1, and a radial oil groove 52 penetrates through the inner ring 51 and the outer ring of the dual plates 5, so that an oil passage 6 is communicated with a radial lubrication channel.
The outer ring of the dual plates 5 is provided with three limiting bulges 53, three limiting grooves (not shown in the figure) matched with the limiting bulges 53 are arranged in the gearbox shell 2, the length direction of the limiting grooves is parallel to the axis of the intermediate shaft 1, and the dual plates 5 are limited by the limiting grooves in the gearbox shell 2 to follow the circumferential motion of the friction plates 4 by the dual plates 5. The dual piece 5 can move linearly in the gearbox housing 2 along the length direction of the limiting groove.
In some alternative embodiments: referring to fig. 1, the embodiment of the application provides a friction plate lubrication mechanism for an intermediate shaft brake of an AMT gearbox, wherein a brake cylinder cover 7 is arranged on the side surface of a gearbox shell 2 of the lubrication mechanism, and the brake cylinder cover 7 is connected with the gearbox shell 2 in a sealing mode. A brake piston 8 is arranged in a space between the transmission housing 2 and the brake cylinder head 7, and the brake piston 8 is used for driving the coupling piece 5 and the friction piece 5 to be combined or separated.
A compression space 12 is formed between the brake piston 8 and the brake cylinder cover 7, and an air inlet (not shown in the figure) is formed in the brake cylinder cover 7 and is communicated with the compression space 12. A sealing ring 13 is arranged between the edge of the brake piston 8 and the brake cylinder cover 7, and the sealing ring 13 is used for ensuring the air tightness of the compression space 12 and preventing the gas in the compression space 12 from leaking.
An axial hole is formed in the end portion of the intermediate shaft 1, a spring 9 is arranged in the axial hole, a bushing 10 is sleeved on the spring 9, a steel ball 11 is arranged in the middle of one end, close to the spring 9, of the brake piston 8, and the bushing 10 abuts against the steel ball 11. The brake piston 8 is provided with a counter bore for mounting the steel ball 11, the steel ball 11 is positioned in the counter bore, and the depth of the counter bore is smaller than the diameter of the steel ball 11.
When the intermediate shaft brake needs braking, compressed air is introduced into the compression space 12 through the air inlet, the compressed air pushes the brake piston 8 to linearly move towards the direction of the intermediate shaft 1 in the brake cylinder cover 7, and the spring 9 contracts and stores energy. The brake piston 8 drives the dual plate 5 and the friction plate 5 to do combined action, the dual plate 5 and the friction plate 5 are mutually rubbed after being attached and pressed tightly, and the dual plate 5 and the friction plate 5 generate friction resistance, so that braking force is generated on the intermediate shaft 1, and the rotating speed of the intermediate shaft 1 is reduced.
When the brake of the intermediate shaft needs to be released, the air inlet stops introducing compressed air into the compression space 12, the spring 9 extends and releases elastic potential energy, the spring 9 pushes the brake piston 8 to linearly move in the brake cylinder cover 7 in the direction far away from the intermediate shaft 1, the brake piston 8 releases the dual plate 5 and the friction plate 5 from combining action, the dual plate 5 and the friction plate 5 are separated from each other, the friction force between the dual plate 5 and the friction plate 5 is gradually reduced until the friction force disappears, and the intermediate shaft 1 gradually recovers to a normal rotating speed.
Principle of operation
The embodiment of the application provides an AMT gearbox jackshaft stopper friction disc lubricating mechanism, because this lubricating mechanism's jackshaft 1 is coaxial to be set up in gearbox housing 2, and rotates through bearing 3 and connect, and the cover is equipped with a plurality of friction discs 4 on jackshaft 1, is equipped with the axial lubrication passageway between a plurality of friction discs 4 and jackshaft 1, and the axial lubrication passageway is used for letting in lubricating oil to bearing 3. The plurality of dual plates 5 and the plurality of friction plates 4 are sequentially arranged in a crossed mode, a radial lubricating channel is arranged between the dual plates 5 and the friction plates 4 which are attached to each other, the radial lubricating channel is communicated with the axial lubricating channel, an oil duct 6 is formed in the gearbox shell 2, and the oil duct 6 is communicated with the radial lubricating channel.
No matter the jackshaft stopper of the application is in the brake state, the lubricating oil that gets into in the oil duct 6 can get into radial lubrication channel in proper order and cool off a plurality of friction discs 4 and a plurality of dual piece 5, then gets into axial lubrication channel and lubricate bearing 3, carries out circulative cooling, lubrication once more in lubricating oil inflow transmission housing 2 after lubricating bearing 3. The lubricating oil path of the intermediate shaft brake can flow more smoothly in a circulating manner, oil sludge formed around the spline of the friction plate 4 is prevented from blocking the oil path and reducing the friction coefficient of the friction plate 4, the heat dissipation efficiency of the friction plate 4 is improved, and the stability of the friction coefficient of the friction plate 4 and the service life of the friction plate 4 are ensured.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a lubricated mechanism of AMT gearbox jackshaft brake friction disc which characterized in that includes: the transmission comprises an intermediate shaft (1), a dual plate (5), a friction plate (4) and a transmission shell (2);
the intermediate shaft (1) is coaxially arranged in the gearbox shell (2) and is rotationally connected with the intermediate shaft through a bearing (3), a plurality of friction plates (4) are sleeved on the intermediate shaft (1), an axial lubricating channel is arranged between the friction plates (4) and the intermediate shaft (1), and the axial lubricating channel is used for introducing lubricating oil into the bearing (3);
a plurality of dual piece (5) and a plurality of friction disc (4) are alternately arranged in proper order, are equipped with radial lubrication channel between dual piece (5) and the friction disc (4) of laminating each other, radial lubrication channel with axial lubrication channel intercommunication, oil duct (6) have been seted up on gearbox housing (2), oil duct (6) with radial lubrication channel intercommunication.
2. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox as recited in claim 1, wherein:
the one end of jackshaft (1) is equipped with the integral key shaft, the middle part of friction disc (4) is equipped with splined hole (41), friction disc (4) cover is established on the integral key shaft and is connected with the splined shaft meshing, be equipped with oil groove (42) in splined hole (41), it is equipped with a plurality ofly, a plurality of to cross oil groove (42) and arrange along the circumferencial direction equipartition of splined hole (41), cross oil groove (42) with form between the integral key shaft the lubricated passageway of axial.
3. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox as recited in claim 1, wherein:
the front surface and the back surface of the dual plate (5) and/or the friction plate (4) are respectively provided with a plurality of radial oil grooves (52), and the radial oil grooves (52) on the front surface and the back surface of the dual plate (5) and/or the friction plate (4) are distributed in a staggered manner;
the radial oil grooves (52) between the mutually-fitted dual plates (5) and the friction plates (4) form the radial lubricating channel.
4. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox as recited in claim 3, wherein:
the radial oil grooves (52) are spiral, and the spiral directions of the radial oil grooves (52) on the front surface and the back surface of the dual plate (5) and/or the friction plate (4) are opposite.
5. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox as recited in claim 3, wherein:
inner rings (51) are arranged in the middle of the dual sheets (5), the inner diameter of each inner ring (51) is larger than the outer diameter of the intermediate shaft (1), and the radial oil grooves (52) penetrate through the inner rings (51) and the outer rings of the dual sheets (5);
the outer ring of the dual pieces (5) is provided with a plurality of limiting protrusions (53), a plurality of limiting grooves matched with the limiting protrusions (53) are formed in the gearbox shell (2), the length direction of each limiting groove is parallel to the axis of the middle shaft (1), and the dual pieces (5) limit circular motion through the limiting grooves.
6. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox as recited in claim 1, wherein:
a brake cylinder cover (7) is arranged on the side face of the transmission case (2), a brake piston (8) is arranged in a space between the transmission case (2) and the brake cylinder cover (7), and the brake piston (8) is used for driving the dual plate (5) and the friction plate (4) to be combined or separated;
a compression space (12) is formed between the brake piston (8) and the brake cylinder cover (7), an air inlet is formed in the brake cylinder cover (7), and the air inlet is communicated with the compression space (12).
7. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox according to claim 6, wherein:
an axial hole is formed in the end portion of the intermediate shaft (1), a spring (9) is arranged in the axial hole, a bushing (10) is sleeved on the spring (9), a steel ball (11) is arranged in the middle of one end, close to the spring (9), of the brake piston (8), and the bushing (10) abuts against the steel ball (11);
and a sealing ring (13) is arranged between the edge of the brake piston (8) and the brake cylinder cover (7).
8. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox according to claim 7, wherein:
and a counter bore for mounting the steel ball (11) is arranged on the brake piston (8), the steel ball (11) is positioned in the counter bore, and the depth of the counter bore is smaller than the diameter of the steel ball (11).
9. The lubrication mechanism for the friction plate of the intermediate shaft brake of the AMT gearbox according to claim 1, wherein:
the bearing (3) is a cylindrical roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010657639.2A CN111911567A (en) | 2020-07-09 | 2020-07-09 | Friction plate lubricating mechanism for intermediate shaft brake of AMT (automated mechanical transmission) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010657639.2A CN111911567A (en) | 2020-07-09 | 2020-07-09 | Friction plate lubricating mechanism for intermediate shaft brake of AMT (automated mechanical transmission) |
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| Publication Number | Publication Date |
|---|---|
| CN111911567A true CN111911567A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010657639.2A Pending CN111911567A (en) | 2020-07-09 | 2020-07-09 | Friction plate lubricating mechanism for intermediate shaft brake of AMT (automated mechanical transmission) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087350A (en) * | 2021-11-24 | 2022-02-25 | 中国重汽集团济南动力有限公司 | AMT gearbox |
| CN114370464A (en) * | 2022-01-21 | 2022-04-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN114704563A (en) * | 2022-04-14 | 2022-07-05 | 一汽解放汽车有限公司 | Jackshaft stopper and car |
| CN114962495A (en) * | 2022-05-10 | 2022-08-30 | 江苏凯迅达高铁传动技术开发有限公司 | Wheel cylinder lubricating system for wedge brake |
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| US3295640A (en) * | 1964-11-17 | 1967-01-03 | Teves Kg Alfred | Disk-type friction brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087350A (en) * | 2021-11-24 | 2022-02-25 | 中国重汽集团济南动力有限公司 | AMT gearbox |
| CN114370464A (en) * | 2022-01-21 | 2022-04-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN114370464B (en) * | 2022-01-21 | 2023-06-16 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN114704563A (en) * | 2022-04-14 | 2022-07-05 | 一汽解放汽车有限公司 | Jackshaft stopper and car |
| CN114704563B (en) * | 2022-04-14 | 2023-05-23 | 一汽解放汽车有限公司 | Intermediate shaft brake and automobile |
| CN114962495A (en) * | 2022-05-10 | 2022-08-30 | 江苏凯迅达高铁传动技术开发有限公司 | Wheel cylinder lubricating system for wedge brake |
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