CN109372961A - A kind of single controlled three-speed gearbox - Google Patents
A kind of single controlled three-speed gearbox Download PDFInfo
- Publication number
- CN109372961A CN109372961A CN201811494933.5A CN201811494933A CN109372961A CN 109372961 A CN109372961 A CN 109372961A CN 201811494933 A CN201811494933 A CN 201811494933A CN 109372961 A CN109372961 A CN 109372961A
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- China
- Prior art keywords
- clutch
- platen
- spring
- brake
- steel disc
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Classifications
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/70—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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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
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
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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
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/10—Braking arrangements
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0039—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising three forward speeds
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2038—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with three engaging means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a kind of single controlled three-speed gearboxes, comprising: shell, input shaft, output shaft, actuator module, brake, first clutch, second clutch, front-seat planetary wheeling assembly and heel row planetary wheeling assembly；The brake is connected with the first clutch, the second clutch respectively, and the brake, the first clutch, the second clutch are provided with platen；The actuator module, which can be used for providing pressure, the platen to second clutch or the platen to brake to the platen of first clutch, provides pressure, to realize the switching of three gears.The present invention can realize the gear switching of 3 gear automatic transmission by controlling actuator module, realize three shift transmission of single controlled, can to avoid it is existing one control one planet gear train speed changer control element more than and it is at high cost, design and assembly difficulty it is high the problems such as.
Description
Technical field
The present invention relates to electric automobile gear device field, in particular to a kind of single controlled three-speed gearbox.
Background technique
The existing planetary gear train gear applied to automatic transmission is easier to carry out various gear matched designs, by adopting
Realized with the gear shift actuator module such as clutch, brake and one-way clutch gear ring, sun gear or planet carrier combination or
Separation, to reach the realization of specific gear.It is general to control one using one in the control of clutch and brake operation state
Mode, i.e. an actuator module control some clutch or brake.
In the implementation of the present invention, following problem exists in the prior art in inventor:
1, under the mode of an existing control one, how many gear of speed changer is it is necessary to clutch and system with no less than gear
Dynamic device, each clutch and brake will an actuator module, production cost is higher and to increase the design of speed changer difficult
Degree and assembly technology cost.
2, the design of existing clutch piston cavity needs that channel is arranged among transmission shaft, increases and designs and manufactures difficulty
And risk of leakage.
3, multiple actuator modules increase energy consumption.
4, multiple actuator modules increase signal and are disturbed, and failure risk is also just increase accordingly.
Summary of the invention
For this reason, it may be necessary to provide a kind of single controlled three-speed gearbox, the technical issues of for solving the prior art.
To achieve the above object, a kind of single controlled three-speed gearbox is inventor provided characterized by comprising
Shell, input shaft, output shaft, actuator module, brake, first clutch, second clutch, front-seat planetary gear
Component and heel row planetary wheeling assembly；
The brake is connected with the first clutch, the second clutch respectively, the brake, described
One clutch, the second clutch are provided with platen；
The front-seat planetary wheeling assembly includes front-seat sun gear, front-seat gear ring and front-seat planet carrier, the rear rows of planetary
Wheel assembly includes heel row sun gear, rear ring gear and heel row planet carrier, and the input shaft and heel row sun gear transmission connect
It connects, the brake and the first clutch cooperate for braking front-seat sun gear, the brake and described second
Clutch cooperates for braking rear ring gear, and the heel row planet carrier and the output shaft are sequentially connected；
The actuator module receives the pressure of external pressure source, and can be used for direct or indirect to first clutch
Platen provides pressure, the platen to second clutch or the platen to brake and provides pressure, to realize cutting for three gears
It changes.
As a kind of preferred structure of the invention, the single controlled three-speed gearbox further include the first spring, second spring,
One end of third spring and spacing collar, first spring is connected with the shell, the other end of first spring
It is sequentially connected with one end of the spacing collar, the other end of the spacing collar and the first clutch are sequentially connected, institute
The platen for stating first clutch is sequentially connected by platen one end of second spring and the second clutch, second clutch
The platen other end of device is used to be sequentially connected with the actuator module；
The actuator module includes first piston and push rod, and the first piston includes first connecting portion and second
Interconnecting piece, the first connecting portion are connected by third spring with push rod, the push rod by respectively with the brake
The platen transmission connection of platen, the second clutch, the second connecting portion are used to pass with the platen of the second clutch
Dynamic connection.
As a kind of preferred structure of the invention, the single controlled three-speed gearbox further include the first spring, second spring,
One end of third spring and thrust bush, first spring is connected with the shell, the other end of first spring
It is sequentially connected with one end of the brake hub of brake, the other end of the brake hub and first clutch transmission connect
It connecing, the platen of the first clutch is sequentially connected by platen one end of third spring and the second clutch, and described the
The platen other end of two clutches is used to be sequentially connected with the actuator module；
One end of the second spring is connected with the shell, the other end of the second spring and one end of brake
The other end of transmission connection, the brake is sequentially connected by the platen of thrust bush and the first clutch, described to push away
Power sleeve is used to be sequentially connected with the actuator module, the platen of the first clutch and the platen of second clutch
The axial movement of relative force sleeve.
As a kind of preferred structure of the invention, the actuator module includes second piston, the 4th spring and wear-resisting
One end of steel disc, the 4th spring is connected with the second piston, the other end and the abrasion-resistant stee of the 4th spring
Piece transmission connection, the wear-resisting steel disc are used to be sequentially connected with the platen of the second clutch.
As a kind of preferred structure of the invention, the actuator module further includes wear-resisting limited location snap ring, the wear-resisting limit
Position snap ring is fixed on shell, and relative wear steel disc is arranged, and the wear-resisting limited location snap ring is used to carry out wear-resisting steel disc
Limit；
The second piston includes third interconnecting piece, and the third interconnecting piece is used to be sequentially connected with the thrust bush.
As a kind of preferred structure of the invention, the single controlled three-speed gearbox further includes the first limited location snap ring, described
First limited location snap ring is fixed on shell, and the platen of opposite first clutch is arranged, and first limited location snap ring is used for
The platen of first clutch is limited.
As a kind of preferred structure of the invention, the single controlled three-speed gearbox further include intermediate input jackshaft and
Heel row sun gear, the input shaft are meshed by spline with input jackshaft, and the input jackshaft passes through set axis and heel row
Sun gear is meshed.
As a kind of preferred structure of the invention, the front row planet carrier is meshed with rear ring gear by spline, described
Heel row planet carrier is meshed with front-seat gear ring by spline.
As a kind of preferred structure of the invention, the first clutch includes inner attrition piece and steel disc group, and described
The inner attrition piece of one clutch is meshed by internal spline with the front-seat sun gear, and can be moved to axial, described first
The steel disc group of clutch is meshed by external splines with the thrust bush, and can be moved to axial.
As a kind of preferred structure of the invention, the second clutch includes inner attrition piece and steel disc group, and described
The inner attrition piece of two clutches is meshed by internal spline with the rear ring gear, and can be moved to axial, described second from
The steel disc group of clutch is mutually meshed by external splines with the thrust bush, and can be moved to axial.
It is different from the prior art, there are three types of states for the actuator module in above-mentioned technical proposal:
When actuator module is in low-pressure state, brake is in discrete state, then can switch to high speed direct high；
When actuator module is in middle pressure condition, actuator first clutch brakes front-seat sun gear,
Mid ranger can then be switched to；
When actuator module is in high pressure conditions, actuator second clutch brakes rear ring gear, then
Low or first gear can be switched to.
Such setting is so that can realize that the gear of 3 gear automatic transmission is cut by controlling actuator module
It changes, that is, realizes three shift transmission of single controlled, can be formed to avoid the planet gear train speed changer control element of an existing control one more
The problems such as this height, high design and assembly difficulty, and effectively solve " fool proof " function under transmission control instruction error, slave
The problem of 2 gears lead to transmission failure can not be linked into simultaneously by avoiding on tool configuration.
Detailed description of the invention
Fig. 1 is three shift transmission high pressure conditions schematic diagram of single controlled described in the first embodiment；
Fig. 2 is pressure condition schematic diagram in three shift transmission of single controlled described in the first embodiment；
Fig. 3 is three shift transmission low-pressure state schematic diagram of single controlled described in the first embodiment；
Fig. 4 is three shift transmission high pressure conditions schematic diagram of single controlled described in second of embodiment；
Fig. 5 is pressure condition schematic diagram in three shift transmission of single controlled described in second of embodiment；
Fig. 6 is three shift transmission low-pressure state schematic diagram of single controlled described in second of embodiment.
Description of symbols:
1, input shaft；
2, input shaft oil seal；
3, left end cap；
4, oil duct sleeve；
5, sliding bearing；
6, the first spring；
7, second spring；
8, left shell；
9, the first limited location snap ring；90, the second limited location snap ring；10, thrust bush；
11, brake hub；110, spacing collar；
12, the platen of first clutch；
13, third spring；
14, the platen of second clutch；140, push rod；15, wear-resisting steel disc limited location snap ring；
16, wear-resisting steel disc；160, wear-resisting retaining ring；
17, the 4th spring；
48, first piston；481, second connecting portion；
18, second piston；181, third interconnecting piece；
19, right shell body；
20, jackshaft is inputted；
21, input shaft spring bearing；
22, input shaft thrust bearing；
23, front-seat sun gear thrust bearing；
24, front-seat sun gear；
25, front-seat planet carrier；
26, front-seat planetary gear；
27, front-seat gear ring；
28, heel row sun gear；
29, heel row planetary gear；
30, heel row planet carrier thrust bearing；
31, rear ring gear；
32, heel row planet carrier；
33, output shaft；
34, output shaft spring bearing；
35, output shaft oil sealing；
36, axis is covered；
37, roller bearing；
38, brake；
39, first clutch；
40, second clutch.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
In the description of the present application unless specifically defined or limited otherwise, term " first ", is only used for retouching " second "
The purpose stated, is not understood to indicate or imply relative importance；Unless otherwise prescribed or explanation, term " multiple " refer to two
It is a or more than two；Term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, it can also
To be to be detachably connected, or be integrally connected, or be electrically connected；It can be directly connected, the indirect phase of intermediary can also be passed through
Even.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
In the description of this specification, it is to be understood that "upper", "lower" described in the embodiment of the present application, "left", "right"
The equal nouns of locality are described with angle shown in the drawings, should not be construed as the restriction to the embodiment of the present application.In addition,
In context, it is also necessary to which understanding can not only when mentioning an element and being connected to another element "upper" or "lower"
It is enough connected directly between another element "upper" or "lower", another element "upper" can also be indirectly coupled to by intermediary element
Or "lower".
Fig. 1 to Fig. 6 is please referred to, the present embodiment is related to a kind of single controlled three-speed gearbox, is to come from motor for changing
Revolving speed and torque mechanism, it is capable of fixing or stepping changes output shaft 33 and 1 transmission ratio of input shaft, can especially pass through one
A brake and an actuator module, realize the switching of three gears, so that reaching reduces cost, simplify assembly and manufacture is difficult
Degree.
In all kinds of embodiments, the single controlled three-speed gearbox includes: shell, input shaft 1, output shaft 33, actuation
Device module, brake 38, first clutch 39, second clutch 40, front-seat planetary wheeling assembly and heel row planetary wheeling assembly；
The brake 38 is connected with the first clutch 39, the second clutch 40 respectively, the brake
38, the first clutch 39, the second clutch 40 are provided with platen；
The front row planetary wheeling assembly includes front-seat sun gear 24, front-seat gear ring 27, front-seat planetary gear 26, front-seat planet carrier
25, the heel row planetary wheeling assembly includes heel row sun gear 28, rear ring gear 31, heel row planetary gear 29, heel row planet carrier 32, institute
Front-seat planetary gear 26 is stated to be rotationally arranged at front-seat planet carrier by pin shaft, and respectively with front-seat gear ring 27, the front-seat sun
Wheel engagement；The heel row planet carrier 32 is set in shell by heel row planet carrier thrust bearing 30；The heel row planetary gear 29
It is rotationally arranged at heel row planet carrier 32 by pin shaft, and is engaged respectively with rear ring gear 31, heel row sun gear 28；It is described
Input shaft 1 and the heel row sun gear 28 are sequentially connected, and the brake 38 is used for the first clutch 39 mutual cooperation
Front-seat sun gear 24 is braked, the brake 38 cooperates with the second clutch 40 for braking rear ring gear 31, institute
It states heel row planet carrier 32 and the output shaft 33 is sequentially connected；
The actuator module receives the pressure of external pressure source, and the actuator module can be used for first clutch
Platen 12 provides pressure, provides the platen 14 of second clutch pressure or provides pressure to the platen of brake 38, with reality
The switching of existing three gears.
Actuator module can be used for receiving the pressure that cylinder, electric cylinders, hydraulic cylinder provide.
Such setting can realize the control to brake 38, and realize to first by controlling actuator module
Then the control of clutch 39 and second clutch 40 reaches the control to front-seat planetary wheeling assembly and heel row planetary wheeling assembly
System is finally reached the purpose for changing transmission ratio, realizes the change to motor speed, can be to avoid the planetary gear of an existing control one
It is the problems such as transmission control element is more and at high cost, design and assembly difficulty are high, and effectively solves transmission control instruction
" fool proof " function under error, the problem of 2 gears lead to transmission failure can not be linked into simultaneously by avoiding from machine configurations.
It please refers in Fig. 1 and Fig. 6, front-seat planet carrier 25 and rear ring gear 31 are often engaged by spline and form preceding rows of planetary
Frame rear ring gear component can guarantee that the two revolving speed is consistent in this way.Similarly, heel row planet carrier 32 and front-seat gear ring 27 pass through weldering
It connects and forms heel row planet carrier front row gear ring component, it is also ensured that the two revolving speed is consistent.
Optionally, it is additionally provided with thrust bush 10, third spring 13 is located at platen 12 and the second clutch of first clutch
The centre of the platen 14 of device, the platen 12 of first clutch and the platen 14 of second clutch can 10 axial directions of relative force sleeve
It is mobile.
Optionally, the single controlled three-speed gearbox further includes intermediate input jackshaft 20 and heel row sun gear 28, institute
It states input shaft 1 and is meshed by spline with input jackshaft 20, the input jackshaft 20 passes through set axis 36 and heel row sun gear
28 are meshed.
It optionally, further include set axis 36, input shaft 1 is often engaged by spline with input jackshaft 20, and jackshaft 20 is inputted
It is often engaged by spline with set axis 36, set axis 36 is often engaged further across spline with heel row sun gear 28.Such setting is then
Realize the transmission connection of input shaft 1 Yu heel row sun gear 28.
Optionally, the front-seat sun gear 24 passes through front-seat sun gear thrust bearing 23 and is rotationally arranged in shell,
Friction plate in the friction plate and steel disc component of first clutch 39 is engaged by internal spline with front row sun gear 24, in this way can be with
Guarantee the two with revolving speed and can move to axial；And the steel disc in the friction plate and steel disc component of first clutch 39 is outside
Spline is engaged with thrust bush 10, can be guaranteed the two in this way with revolving speed and can be moved to axial.By controlling the first clutch
The combination or separation of the friction plate of device 39 and friction plate and steel disc in steel disc component then may be implemented front-seat sun gear 24 and push away
The combination or separation of power sleeve 10.
Similarly, the friction plate in the friction plate of second clutch 40 and steel disc component passes through internal spline and rear ring gear 31
Engagement can guarantee the two with revolving speed in this way and can move to axial；And the friction plate and steel disc component of second clutch 40
In steel disc engaged with thrust bush 10 by external splines, can guarantee the two in this way with revolving speed and can move to axial.It is logical
The combination or separation for crossing the friction plate and steel disc in the friction plate and steel disc of control second clutch 40, then may be implemented rear toothrow
The combination or separation of circle 31 and thrust bush 10.
Optionally, the junction of the actuator module and brake is additionally provided with wear-resisting steel disc 16, and the abrasion-resistant stee
Piece 16 is embedded in shell without being able to rotate by external tooth.
By braking component different in front-seat planetary wheeling assembly and heel row planetary wheeling assembly, realizes and change the single control
The transmission ratio of three-speed gearbox output, but the numerical value of specific transmission ratio and front-seat planetary wheeling assembly and heel row planetary gear set
The number of teeth of different components is related in part, and for the ease of illustrating, the application is illustrated by following values: pre-planetary gear group
Middle front row 24 number of teeth of sun gear is 25, and front-seat 27 number of teeth of gear ring is 62, characteristic parameter K1=62/25=2.48；Planet tooth afterwards
2828 number of teeth of heel row sun gear is 38 in wheel group, and 31 number of teeth of rear ring gear is 70, characteristic parameter K2=70/38=1.842.
It please refers to Fig.1 to Fig.3, optionally, in the first embodiment, the single controlled three-speed gearbox further includes first
One end of spring 6, second spring 7, third spring 13 and thrust bush 10, first spring 6 is connected with the shell,
One end of the brake hub 11 of the other end and brake of first spring 6 is sequentially connected, the brake hub 11 it is another
End is sequentially connected with the first clutch 39, and the brake hub 11 is rotatably attached by sliding bearing 5 with shell；
The platen 12 of the first clutch is sequentially connected by 14 one end of platen of third spring 13 and the second clutch, described
14 other end of platen of second clutch is used to be sequentially connected with the actuator module；
One end of the second spring 7 is connected with the shell, the other end and the brake 38 of the second spring 7
One end transmission connection, the other end of the brake 38 is driven by the platen 12 of thrust bush 10 and the first clutch to be connected
Connect, the thrust bush 10 be used for the actuator module be sequentially connected, the platen 12 of the first clutch and second from
The platen 14 of clutch can the axial movement of relative force sleeve 10.
Optionally, the actuator module includes second piston 18, the 4th spring 17 and wear-resisting steel disc 16, and the described 4th
One end of spring 17 is connected with the second piston 18, and the other end of the 4th spring 17 and the wear-resisting steel disc 16 are driven
Connection, the wear-resisting steel disc 16 are used to be sequentially connected with the platen 14 of the second clutch.
Optionally, the actuator module further includes wear-resisting limited location snap ring 15, and the wear-resisting limited location snap ring 15 is fixedly installed
On shell, and relative wear steel disc 16 is arranged, and the wear-resisting limited location snap ring 15 is for limiting wear-resisting limited location snap ring 15；
The second piston 18 includes third interconnecting piece 181, and the third interconnecting piece 181, which is used to be driven with the thrust bush 10, to be connected
It connects.
Optionally, the single controlled three-speed gearbox further includes the first limited location snap ring 9, and first limited location snap ring 9 is fixed
It is arranged on shell, and the platen 12 of opposite first clutch is arranged, first limited location snap ring 9 is used for first clutch
Platen 12 is limited.
In the first embodiment, the specific working principle of the single control three-speed gearbox is described below:
(1) high speed direct gear (3 gear): as shown in figure 3, when pneumatic supply or oil pressure source in the right side cavity of actuator module
When in low-pressure state or without other external force sources, the first spring 6 pass sequentially through brake hub 11, first clutch friction plate and
Steel disc component 39, the platen 12 of first clutch, third spring 13, the platen 14 of second clutch, wear-resisting steel disc 16, the 4th bullet
Actuator module is pushed into the right position as shown in Figure 3 by the parts such as spring 17.Later, the first spring 6, second spring 7, the 4th spring
17 are in free extension state (assuming that length is respectively 13.0,13.9,9.7), and it is (false that third spring 13 is in pretightning force state
If 22.4) length is.At this point, the friction plate and steel disc component of brake 38 are in discrete state, the friction of first clutch 39
Piece and steel disc component, the friction plate of second clutch 40 and steel disc component are under the pressure of third spring 13 in conjunction with shape
State.Further train analysis is it is found that the friction plate and steel disc component and thrust that front-seat sun gear 24 passes through first clutch 39
Sleeve 10 combines, and rear ring gear 31 is combined by the friction plate and steel disc component of second clutch 40 with thrust bush 10,
Rear ring gear 31 and front-seat sun gear 24 in this way combines same revolving speed.Spline is crossed with front-seat planet carrier 25 due to rear ring gear 31 to be formed
Component, front-seat sun gear 24 and the same revolving speed of front-seat planet carrier 25, front-seat gear ring 27 also inevitable same revolving speed.Front-seat gear ring 27 is with after
It ranks carrier 32 and constitutes the latter same output power of component, due to rear ring gear 31 and the same revolving speed of heel row planetary gear 29, i.e. planetary gear
It is work in direct gear.Power is inputted from heel row sun gear 28, and is exported from heel row planet carrier 32, transmission ratio 1:1.
(2) speed gear in (2 gear): as shown in Fig. 2, during the pneumatic supply oil pressure source in the right side cavity of actuator module is in
When pressure condition or other external force sources, actuator module overcome the 4th spring 17 to move to left wear-resisting steel disc 16, and pass through the second clutch
The platen 14 of device compresses third spring 13.On the one hand under the active force of third spring 13, the friction plate of first clutch 39 and
Steel disc component is still within bonding state, and on the other hand, third spring 13 passes sequentially through platen 12, the thrust sleeve of first clutch
Cylinder 10, the friction plate of brake 38 and steel disc component compress second spring 7, and the friction plate of brake 38 and steel disc group
Part is in on-position similarly under second spring 7 and the collective effect of thrust bush 10.Later, the first spring 6, the second bullet
Spring 7, the 4th spring 17 are in by contracting state (assuming that length is respectively 10,12.9,6.7), and third spring 1313, which is in, to be pre-tightened
And further pressured state (assuming that length is 18.4).At this point, the friction plate and steel disc component of brake 38, which are in, combines shape
State, the friction plate and steel disc component of first clutch 39 are in bonding state, the friction plate and steel disc component of second clutch 40
In discrete state.Further it is found that thrust bush 10 stops rotating under the braking of brake, this will make to lead to for train analysis
The front-seat sun gear 24 that the friction plate and steel disc component for crossing first clutch 39 are combined with thrust bush 10 is braked stalling.When dynamic
Power is inputted from heel row sun gear 28, and when exporting from heel row planet carrier 32, can by combining the kinematical equation of double planetary gear
To solve the transmission ratio under the mode as (1+K2)-K1K2/ (1+K1)=1.529.
(3) bottom gear (1 gear): as shown in Figure 1, the pneumatic supply or oil pressure source worked as in the right side cavity of actuator module are in
When high pressure conditions or other external force sources, actuator module first overcomes the 4th spring 17 to move to left wear-resisting steel disc 16, with abrasion-resistant stee
Restricted abrasion-resistant stee piece 16 mobile wear-resisting steel disc limited location snap ring 15 is set between piece 16 and brake, it is therefore, resistance to after this
Stop moving to left after grinding limit of the steel disc 16 by wear-resisting steel disc limited location snap ring 15.Due to the right side high pressure actuator of actuator module
The active force of module is larger, and the lower end that actuator module will compress further the 4th spring 17 to actuator module contacts and presses
Tight thrust sleeve.Further, one side thrust bush 10 move to left the friction plate for making second clutch and steel disc component 40 is being pressed
Impaction state is under the action of contracting third spring 13 and actuator module；On the other hand, moving to left for thrust bush 10 makes to brake
The friction plate and steel disc component 38 of device are further compressed and are in bonding state.Due to first clutch platen 12 by
The limit of shell stops being moved to the left and thrust bush 10 moves to left, and the friction plate and steel disc component 39 of first clutch will be located
In discrete state.Further it is found that thrust bush 10 stops rotating under the braking of brake, this will make to pass through for train analysis
The rear ring gear 31 that the friction plate and steel disc component 40 of second clutch are combined with thrust bush 10 is braked stalling.When power from
Heel row sun gear 28 inputs, and from when the output of heel row planet carrier 32, by the kinematical equation of heel row planetary gear 29, can solve
The transmission ratio under the mode is 1+K2=2.842 out.
In order to shorten the length axial dimension of entire speed changer, can by brake design on the top of thrust bush 10,
Fig. 4 to fig. 6 is please referred to, in second of embodiment, the single controlled three-speed gearbox further includes the first spring 6, second spring
7, one end of third spring 13 and spacing collar 110, first spring 6 is connected with the shell, first spring 6
The other end and one end of the spacing collar 110 be sequentially connected, the other end of the spacing collar 110 and first clutch
Device 39 is sequentially connected, and the platen 12 of the first clutch passes through 14 one end of platen of second spring 7 and the second clutch
Transmission connection, 14 other end of platen of the second clutch are used to be sequentially connected with the actuator module；
The actuator module includes first piston 48, and the first piston 48 includes first connecting portion and the second connection
Portion 481, the first connecting portion are connected by third spring 13 with push rod 140, the push rod 140 pass through respectively with the system
The platen of dynamic device 38, the platen 14 of the second clutch are sequentially connected, the second connecting portion 481 be used for described second from
The platen 14 of clutch is sequentially connected.
In a further embodiment, wear-resisting retaining ring 160 is additionally provided between the spacing collar 110 and the first spring 6.
The specific working principle of the single control three-speed gearbox is described below in the present embodiment:
Referring to Fig. 4, when in the plunger shaft of actuator module being high pressure, the friction plate and steel disc group of brake 38, the
The friction plate and steel disc component of two clutches 40 is in bonding state under actuator module thrust, and first clutch 39 rubs
Pad and steel disc component are limited and in mask work state due to the platen 12 of first clutch by left shell 8.At this point, first
Spring 6 and third spring 13, which are further pressurized, is reduced to minimum length dimensional state.With reference to the working principle in Fig. 1 it is found that Fig. 4 work
Make in 1 gear.
Referring to Fig. 5, when being middle pressure in the plunger shaft of actuator module, the friction plate and steel disc component of brake 38,
The friction plate and steel disc component of first clutch 39 is in bonding state under actuator module thrust, and second clutch 40
Friction plate and steel disc component are pushed away and in mask work state due to the platen 14 of second clutch by 140 left side of push rod.At this point, the
One spring 6 and third spring 13 are by certain compression.With reference to the working principle in Fig. 2 it is found that Fig. 4 work is in 2 gears.
Referring to Fig. 6, when in the plunger shaft of actuator module being low pressure, the friction plate and steel disc group of first clutch 39
Part, the friction plate of second clutch 40 and steel disc component are in bonding state under the pre-pressing force of second spring 7, and brake
The friction plate and steel disc component of device 38 are due to its friction plate and the getting rid of oily inertia of steel disc component and in mask work state.With reference to
Working principle in Fig. 3 is it is found that Fig. 6 work is kept off 3.
In a second embodiment, the left side of spacing collar 110 is arranged in the first limited location snap ring 9, for spacing collar 110
It is limited, and the right side of second clutch 40 is arranged in the second limited location snap ring 90, for being limited to second clutch 40.
Optionally, in all embodiments, for the ease of for input shaft 1, output shaft 33, front-seat planetary wheeling assembly and after
Seniority among brothers and sisters 32 component of carrier etc. is lubricated, and two control, three formula three-speed gearboxes are provided with forced feed lubrication oil duct, forced feed lubrication oil
Road is provided with input shaft oil seal 2 and output shaft oil sealing 35 and oil duct sleeve 4 in communication.
Optionally, in all embodiments, the shell of two control, three formula three-speed gearboxes further includes left end cap 3, right end
Lid, left shell 8 and right shell body 19, the left shell 8 and right shell body 19 are semi-cylindrical, and left shell 8 and right shell body 19 splice
At cylindrical cavity, the left end cap 3 is placed on one end of cavity, and right shell body 19 is placed on the other end of cavity.The input shaft 1
It is pierced into cavity from left end cap 3, and one end of input shaft 1 is rotatably attached by input shaft spring bearing 21 with left end cap 3,
The other end of input shaft 1 is fixed by input shaft thrust bearing 22；Output shaft 33 is pierced by outside cavity from right end cap, and output shaft 33
It is rotatably connect with right end cap by output shaft spring bearing 34, needle bearing and roller bearing 37.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
Scope of patent protection of the invention.Therefore, it based on innovative idea of the invention, change that embodiment described herein is carried out and is repaired
Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with
Upper technical solution is used in other related technical areas, is included within the scope of protection of the patent of the present invention.
Claims (10)
1. a kind of single controlled three-speed gearbox characterized by comprising
Shell, input shaft, output shaft, actuator module, brake, first clutch, second clutch, front-seat planetary wheeling assembly
And heel row planetary wheeling assembly；
The brake is connected with the first clutch, the second clutch respectively, the brake, described first from
Clutch, the second clutch are provided with platen；
The front row planetary wheeling assembly includes front-seat sun gear, front-seat gear ring and front-seat planet carrier, the heel row planetary gear set
Part includes heel row sun gear, rear ring gear and heel row planet carrier, and the input shaft and the heel row sun gear are sequentially connected, institute
It states brake and the first clutch cooperates for braking front-seat sun gear, the brake and the second clutch
It cooperates for braking rear ring gear, the heel row planet carrier and the output shaft are sequentially connected；
The actuator module receives the pressure of external pressure source, and can be used for the direct or indirect platen to first clutch
Pressure, the platen to second clutch or the platen to brake are provided, pressure is provided, to realize the switching of three gears.
2. single controlled three-speed gearbox according to claim 1, it is characterised in that: the single controlled three-speed gearbox also wraps
The first spring, second spring, third spring and spacing collar are included, one end of first spring is connected with the shell,
One end of the other end of first spring and the spacing collar is sequentially connected, the other end of the spacing collar and described the
The platen of the connection of one driven by clutches, the first clutch is passed by platen one end of second spring and the second clutch
Dynamic connection, the platen other end of the second clutch are used to be sequentially connected with the actuator module；
The actuator module includes first piston and push rod, and the first piston includes first connecting portion and the second connection
Portion, the first connecting portion are connected by third spring with push rod, the push rod by respectively with the platen of the brake,
The platen of the second clutch is sequentially connected, and the second connecting portion, which is used to be driven with the platen of the second clutch, to be connected
It connects.
3. single controlled three-speed gearbox according to claim 1, it is characterised in that: the single controlled three-speed gearbox also wraps
The first spring, second spring, third spring and thrust bush are included, one end of first spring is connected with the shell,
One end of the brake hub of the other end and brake of first spring is sequentially connected, the other end of the brake hub and institute
First clutch transmission connection is stated, the platen of the first clutch passes through the platen one of third spring and the second clutch
End transmission connection, the platen other end of the second clutch are used to be sequentially connected with the actuator module；
One end of the second spring is connected with the shell, and the other end of the second spring and one end of brake are driven
The other end of connection, the brake is sequentially connected by the platen of thrust bush and the first clutch, the thrust sleeve
For cylinder for being sequentially connected with the actuator module, the platen of the first clutch and the platen of second clutch can be opposite
Thrust bush axial movement.
4. single controlled three-speed gearbox according to claim 3, it is characterised in that: the actuator module includes second living
Plug, the 4th spring and wear-resisting steel disc, one end of the 4th spring are connected with the second piston, the 4th spring
The other end and the wear-resisting steel disc are sequentially connected, and the wear-resisting steel disc is used to be sequentially connected with the platen of the second clutch.
5. single controlled three-speed gearbox according to claim 4, it is characterised in that: the actuator module further includes wear-resisting
Limited location snap ring, the wear-resisting limited location snap ring are fixed on shell, and relative wear steel disc is arranged, the wear-resisting limited location snap ring
For being limited to wear-resisting steel disc；
The second piston includes third interconnecting piece, and the third interconnecting piece is used to be sequentially connected with the thrust bush.
6. single controlled three-speed gearbox according to claim 1, it is characterised in that: the single controlled three-speed gearbox also wraps
The first limited location snap ring is included, first limited location snap ring is fixed on shell, and the platen of opposite first clutch is arranged, institute
The first limited location snap ring is stated for limiting to the platen of first clutch.
7. single controlled three-speed gearbox according to claim 1, it is characterised in that: the single controlled three-speed gearbox also wraps
Intermediate input jackshaft and heel row sun gear are included, the input shaft is meshed by spline with input jackshaft, the input
Jackshaft is meshed by set axis with heel row sun gear.
8. single controlled three-speed gearbox according to claim 1, it is characterised in that: the front row planet carrier and rear ring gear
It is meshed by spline, the heel row planet carrier is meshed with front-seat gear ring by spline.
9. single controlled three-speed gearbox according to claim 1, it is characterised in that: the first clutch includes interior friction
The inner attrition piece of piece and steel disc group, the first clutch is meshed by internal spline with the front-seat sun gear, and can phase
To axial movement, the steel disc group of the first clutch is meshed by external splines with the thrust bush, and can be to axial
It is mobile.
10. single controlled three-speed gearbox according to claim 1, it is characterised in that: the second clutch includes interior rubs
The inner attrition piece of pad and steel disc group, the second clutch is meshed by internal spline with the rear ring gear, and can phase
To axial movement, the steel disc group of the second clutch is mutually meshed by external splines with the thrust bush, and can relative axle
To movement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494933.5A CN109372961B (en) | 2018-12-07 | 2018-12-07 | Single-control three-gear transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494933.5A CN109372961B (en) | 2018-12-07 | 2018-12-07 | Single-control three-gear transmission |
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| CN109372961A true CN109372961A (en) | 2019-02-22 |
| CN109372961B CN109372961B (en) | 2023-09-05 |
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| CN201811494933.5A Active CN109372961B (en) | 2018-12-07 | 2018-12-07 | Single-control three-gear transmission |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017373A (en) * | 2019-05-16 | 2019-07-16 | 福州锐智新能源科技有限公司 | A kind of three formula gearshifts of control for speed changer |
| CN110578775A (en) * | 2019-07-12 | 2019-12-17 | 福州锐智新能源科技有限公司 | three-gear transmission based on Ravigneaux planetary gear train and linkage actuating mechanism |
| CN110578776A (en) * | 2019-07-12 | 2019-12-17 | 福州锐智新能源科技有限公司 | Single gear train linkage gear shifting transmission |
| CN110578774A (en) * | 2019-07-12 | 2019-12-17 | 福州锐智新能源科技有限公司 | three-gear transmission based on Simpson planetary gear train and linkage actuating mechanism |
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| CN110017373A (en) * | 2019-05-16 | 2019-07-16 | 福州锐智新能源科技有限公司 | A kind of three formula gearshifts of control for speed changer |
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| CN110578775A (en) * | 2019-07-12 | 2019-12-17 | 福州锐智新能源科技有限公司 | three-gear transmission based on Ravigneaux planetary gear train and linkage actuating mechanism |
| CN110578776A (en) * | 2019-07-12 | 2019-12-17 | 福州锐智新能源科技有限公司 | Single gear train linkage gear shifting transmission |
| CN110578774A (en) * | 2019-07-12 | 2019-12-17 | 福州锐智新能源科技有限公司 | three-gear transmission based on Simpson planetary gear train and linkage actuating mechanism |
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|---|---|
| CN109372961B (en) | 2023-09-05 |
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