CN101526117B - Brake clutch and automotive transmission system - Google Patents
Brake clutch and automotive transmission system Download PDFInfo
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- CN101526117B CN101526117B CN200910106746XA CN200910106746A CN101526117B CN 101526117 B CN101526117 B CN 101526117B CN 200910106746X A CN200910106746X A CN 200910106746XA CN 200910106746 A CN200910106746 A CN 200910106746A CN 101526117 B CN101526117 B CN 101526117B
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- sun gear
- pedestal
- planetary gear
- gear set
- braking
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Abstract
The invention relates to a brake clutch capable of being applied in the automotive transmission system and arranged between an engine and a transmission. The clutch comprises a fixed housing, a base rotatably arranged on the housing, a planetary gear unit rotatably arranged in the base, an input sun gear inputting motion, extending from two sides of the bases and engaged with the planetary gear unit, an output sun gear connected to a load, a brake piece on one side of the sun gear, and a brake system on the housing, wherein the brake piece is fixedly connected to the base, and the brake system brakes and controls the rotating status of the brake piece. As the brake piece is braked or loosened by the brake system, the base is controlled to rotate or not, and the sun gear is controlled to rotate or not. The mechanisms, such as friction piece and pressure plate, in the prior art are unnecessary, therefore, the shortcomings of poor durability and reliability of which are avoided. The invention has the advantages of low friction and high reliability.
Description
Technical field
The present invention relates to engaging and disengaging gear, more particularly, relate to a kind of brake clutch and adopt the car transmissions of this brake clutch.
Background technique
In some transmission systems, as car transmissions, varying-speed machinery system etc., need to use clutch to carry out power usually and separate, utilize " from " transmit an amount of power with " closing ".With existing automobile clutch is example, usually form by friction plate, spring sheet, platen and pto, be arranged between motor and the gearbox, the transmission of torque that is used for storing on the engine flywheel is given gearbox, guarantees that vehicle passes to an amount of driving force of driving wheel and moment of torsion under different running condition.
Clutch is divided into three working staties, does not promptly step on the full interlock of clutch, and part is stepped on half interlock of clutch, and the not interlock of stepping on clutch.When vehicle during at cruising, platen is tightly to bear against on the friction plate of flywheel, and the frictional force maximum between this moment platen and the friction plate keeps relative static friction between input shaft and the output shaft, and the two rotating speed is identical.When vehicle start, the driver steps on clutch, and the motion pulling platen of clutch pedal leans on backward, and just platen separates with friction plate, and this moment, platen did not contact fully with flywheel, did not just have relative friction yet.
A kind of at last, the semi-linkage state of clutch just.At this moment, the frictional force of platen and friction plate is less than full interlock state.It between the friction plate on clutch compressing disc and the flywheel sliding friction state.The rotating speed of flywheel is greater than the rotating speed of output shaft, and the power section of transmitting out from flywheel passes to gearbox.Be equivalent to a kind of be flexible coupling state between motor and the driving wheel this moment.
Because clutch in use is in the semi-linkage state through regular meeting, this will cause platen and friction plate often to be in the sliding friction state, causes friction plate to wear and tear easily, influences working life.And transmission relies on platen to be connected with the sliding friction of friction plate, and poor reliability causes flame-out etc. easily.There are these problems equally in the clutch of other gearings.
Summary of the invention
The technical problem to be solved in the present invention is, at the friction plate of the clutch of prior art wear and tear easily, the defective of reliable transmission difference, a kind of brake clutch little, reliable transmission that rubs is provided.
Another technical problem to be solved by this invention is, at the friction plate of the clutch of the car transmissions of prior art wear and tear easily, the defective of reliable transmission difference, a kind of car transmissions little, reliable transmission that rub are provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of brake clutch is provided, comprise the shell that fixedly installs, be installed in rotation on pedestal on the described shell, be rotatably installed in planetary gear set in the described pedestal, stretch out from described pedestal both sides respectively and with the input sun gear of described planetary gear set engagement and export sun gear, be arranged on described input sun gear a side braking plate and be installed in braking system on the described shell; Described braking plate is fixedlyed connected with described pedestal, and is controlled the rotary state of described braking plate by described braking system braking.
Brake clutch of the present invention comprises full interlock state, semi-linkage state and separated state;
Described full interlock state is: when described braking system was braked described braking plate fully, described pedestal was braked simultaneously fully, and described input sun gear drives described planetary gear set and rotates, and drove described output sun gear by described planetary gear set and rotated outputting power;
Described semi-linkage state is: when described braking system is not braked described braking plate fully, described pedestal is not braked fully, described input sun gear drives described planetary gear set and rotates, and drives described output sun gear and pedestal rotates simultaneously by described planetary gear set, realizes semi-linkage;
Described separated state is: when described braking system is unclamped described braking plate, described pedestal is simultaneously released, described input sun gear drives described planetary gear set and rotates, drive described pedestal by described planetary gear set and rotate, and described output sun gear can't rotate under the restriction of load with respect to described shell.
In brake clutch of the present invention, described braking plate and pedestal are separately positioned on the both sides of described shell;
Be provided with mounting hole on described shell, described pedestal is provided with assembly department; Described assembly department insert and by Bearing Installation on described mounting hole; Described braking plate is fixedly mounted on the described assembly department by fastening piece.
In brake clutch of the present invention, described shell is the open circles tubular, and its circumference is provided with at least one mounting hole site of installing for described braking system;
Described braking system is the dismountable hydraulic braking sytem that is installed on the described mounting hole site, and described hydraulic braking sytem comprises the hydraulic power that the working pressure working solution is provided, the hydraulic pressure wheel cylinder that is connected with described hydraulic power and the brake clamp of described braking plate being braked by described hydraulic pressure wheel cylinder drive.
In brake clutch of the present invention, described pedestal comprises by the preceding pedestal of fastening piece combination and back pedestal;
Described input sun gear and output sun gear comprise gear part and optical axis portion respectively;
Be provided with the axis hole that passes for the optical axis portion of described input sun gear with braking plate on the pedestal before described, on the axis hole of optical axis portion by Bearing Installation pedestal before described of described input sun gear;
Described back pedestal is provided with the axis hole that the optical axis portion for described output sun gear passes, and the optical axis portion of described output sun gear by Bearing Installation on the axis hole of described back pedestal.
In brake clutch of the present invention, described pedestal internal fixation is provided with a plurality of back shafts, described planetary gear set by Bearing Installation on described back shaft; The sidewall of described pedestal is provided with the breach that partly stretches out for described planetary gear set.
In brake clutch of the present invention, the planetary thickness of each of described planetary gear set is more than or equal to the thickness sum of the gear part of described input sun gear and output sun gear.
In brake clutch of the present invention, the axis of described input sun gear and output sun gear and is positioned at the axle core position of described planetary gear set on same axis; Described input sun gear is different with the size of output sun gear, corresponding, described planetary gear set comprises the different planetary gear set of two packet sizes of interlock, and the size of described two groups of planetary gear set is respectively at the size coupling of input sun gear and output sun gear; Perhaps, described planetary gear set is a two-part, and two sections size is mated with described input sun gear and output sun gear respectively.
The present invention solves the technological scheme that its another technical problem adopts: a kind of car transmissions are provided, comprise motor and gearbox, it is characterized in that, also comprise above-mentioned each described brake clutch; The input sun gear of described brake clutch is connected with described motor, inserts the power of described motor; Described output sun gear is connected with described gearbox, drives described gearbox.
In car transmissions of the present invention, the shell of described brake clutch is fixedly mounted on the described motor, and described braking plate is arranged on described shell inboard, and described pedestal is arranged on the side of described shell away from described motor.
Implement the present invention and have following beneficial effect: braking plate is braked or unclamped by braking system, the rotation of controlling pedestal whether, thereby whether the rotation of control output sun gear, need not to use the mechanism such as friction plate, platen of prior art, thereby avoided the shortcoming of easy to wear, the poor reliability of prior art, had the advantage that friction is little, reliability is high.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the decomposing schematic representation of brake clutch of the present invention;
Fig. 2 is the assembling schematic representation of brake clutch of the present invention;
Fig. 3 is the cooperation schematic representation of input sun gear, output sun gear and the planetary gear set of brake clutch of the present invention;
Fig. 4 is the schematic representation of omission shell, braking plate, braking system of brake clutch of the present invention etc.;
Fig. 5 is the schematic representation of shell, braking plate, braking system of brake clutch of the present invention etc.;
Fig. 6 is the cross-sectional schematic of brake clutch of the present invention.
Embodiment
To shown in Figure 6, is a specific embodiment of brake clutch of the present invention as Fig. 1, comprises shell 10, pedestal 20, planetary gear set 30, input sun gear 40, output sun gear 50, braking plate 60 and braking system 70 etc.When this brake clutch is applied in the car transmissions, be connected between motor and the gearbox (figure does not show), use as the transmission of power clutch.Understandable, this brake clutch also can be applied in other the transmission of power mechanical mechanism, and the speed variator system of lathe, roller machine etc. for example is as long as exist the clutch occasion of transmission of power all can use.Be that example describes to be applied to car transmissions below.
This shell 10 is roughly the cylindric of a side opening, and edge of opening forms mounting edge, thereby whole casing 10 is fixedly mounted on the shell 10 of motor.These shell 10 central positions offer mounting hole 11, insert for pedestal 20 and install, and in the input sun gear 40 insertion shells 10, fixedly connected with the pto of motor.The circumference place of this shell 10 is provided with mounting hole site, is used to install braking system 70 in wherein.In the present embodiment, this mounting hole site is two, is separately installed with a cover braking system 70 on two mounting hole site, thereby can brake braking plate 60 simultaneously by two cover braking system 70; And when a cover braking system 70 lost efficacy, another set of braking system 70 still can be worked, thereby had guaranteed the reliability of work.
This braking system 70 can adopt hydraulic system, and this hydraulic system and braking plate 60 have constituted hydraulic disk braking system 70.This hydraulic system comprises hydraulic power (figure does not show), hydraulic pressure wheel cylinder 71 and brake clamp 72.Brake clamp 72 lay respectively at the both sides of braking plate 60, by the working liquid body with pressure is provided by hydraulic power, drives brake clamp 72 by hydraulic pressure wheel cylinder 71 and come braking plate 60 is produced friction catch.Certainly, can also control the clamping force of brake clamp 72, realize control, thereby realize control, detailed aftermentioned the back segment clutch state to the braking dynamics of braking plate 60 by the fluid pressure in the control hydraulic pressure wheel cylinder 71.Understandable, this hydraulic system can also adopt pressure system or direct mechanical braking sytem 70 etc.This braking system 70 can be installed on the shell 10 by fastening piece 80 (for example bolt, screw etc.), thereby when 72 wearing and tearing of brake clamp or inefficacy, braking system 70 can be disassembled, can change, overhaul, and whole casing 10 need not be pulled down, be convenient for changing, overhaul.
This braking plate 60 is discoid, and the neutral position offers axis hole 61, passes for input sun gear 40.This braking plate 60 can be installed in the inboard of shell 10, can avoid the pollution of dust.This braking plate 60 can be selected existing various brake block for use, is used with brake clamp 72 grades.
As shown in the figure, pedestal 21 and back pedestal 22 before this pedestal 20 comprises, both can pass through the fastening combination of fastening piece 80 (for example fastening screw trip bolt, bolt, rivet, welding etc.).Pedestal 21 is provided with assembly department 23 near a side of shells 10 before being somebody's turn to do, and this assembly department 23 inserts also and is installed in by bearing 90 on the mounting hole 11 of shell 10.And braking plate 60 is fixedly mounted on the assembly department 23 by fastening piece 80 (for example fastening screw trip bolt, bolt, rivet, welding etc.), makes braking plate 60 and pedestal 20 become an integral body.On assembly department 23 and braking plate 60, offer axis hole 24,61 simultaneously, pass for the optical axis portion that imports sun gear 40.Same, on the pedestal 22 of back, also be provided with axis hole 25, so that the passing of the optical axis portion of output sun gear 50.
Be provided with a plurality of back shafts 26 at pedestal 20 internal fixation, each planetary pinion 31 of planetary gear set 30 is installed on the back shaft 26 by bearing 90.As shown in the figure, back shaft 26 is three, is fixedly installed on the pedestal 22 of back.Understandable, the quantity of back shaft 26 is corresponding with the quantity of the planetary pinion 31 of planetary gear set 30, and can be arranged on preceding pedestal 21 and/or the back pedestal 22.Further, also be provided with breach 27 at the sidewall of pedestal 20, planetary pinion 31 parts of planetary gear set 30 are stretched out by this breach 27, thereby can avoid planetary pinion 31 to be sealed in fully in the pedestal 20, help heat radiation and lubricated.And, can effectively reduce the weight of pedestal 20, reduce the volume of whole clutch.
In order to make planetary gear set 30 and input sun gear 40 and output sun gear 50 engagement driving better, the thickness of each planetary pinion 31 is more than or equal to the thickness sum of input sun gear 40 with the gear part of output sun gear 50.Understandable, planetary gear set 30 can be one group, also can be the synchronous planetary gear set 30 of rotating of two or more groups.As shown in the figure, present embodiment input sun gear 40, output sun gear 50 and planetary pinion 31 all adopt helical gear, and input sun gear 40 is identical with the rotation direction of output sun gear 50, and opposite with the rotation direction of planetary pinion 31, to obtain transmission performance and bearing capacity preferably.Understandable, input sun gear 40, output sun gear 50 and planetary pinion 31 also can adopt other forms of gear, for example straight toothed spur gear.
Further, when needs carry out speed change, can adjust the size of the gear parts of input sun gear and output sun gear, corresponding, planetary gear set can adopt the different planetary gear set of two packet sizes of interlock, and the size of two groups of planetary gear set is mated respectively at the size of input sun gear and output sun gear, thereby can realize the speed change transmission.Perhaps, planetary gear set is a two-part, and two sections size is mated with input sun gear and output sun gear respectively.
Further, output sun gear 50 can also be output sun gear gear ring, and this output sun gear gear ring engagement is installed in the periphery of planetary gear set, and equally by optical axis portion outputting power.At this moment, the size of pedestal can increase, and will export the sun gear gear ring and be sealed in the pedestal, and optical axis portion passes the back pedestal; Perhaps, base size remains unchanged, and increases fixed block, directly will export the sun gear gear ring and be installed in the pedestal periphery, and keep and stretch out the planetary part engagement of pedestal, and increase assembling set, plays the effect that output sun gear gear ring rotates of supporting.During assembling, each planetary pinion 31 is installed on the supporting post in the pedestal 20 by bearing 90; To import the gear part and planetary pinion 31 engagements of sun gear 40 and output sun gear 50 then, and with both optical axis portion respectively by preceding pedestal 21 and after axis hole on the pedestal 22 pass, and load onto bearing 90; Then preceding pedestal 21 is fixedlyed connected by fastening piece 80 with back pedestal 22; Again the assembly department 23 of pedestal 20 is inserted into the mounting hole of shell 10, and be installed on the mounting hole by bearing 90, and braking plate 60 is enclosed within from the inboard of shell 10 in the optical axis portion of input sun gear 40, by fastening piece 80 with on the fastening assembly department 23 that is installed in pedestal 20 of this braking plate 60; At last braking system 70 is installed on the mounting hole site of shell 10, and corresponding cooperates, finish the assembling of whole brake clutch with braking plate 60.
When this brake clutch is used for car transmissions, shell 10 is fixedly mounted on the shell 10 of motor, and will imports sun gear 40 and fixedly connected with the output shaft of motor, insert the power of motor; Output sun gear 50 then is connected with gearbox, drives gearbox by output sun gear 50 and rotates outputting power.
This brake clutch comprises three kinds of working staties, and the rotary state of the braking control brake sheet 60 by braking system 70 is realized, is respectively: full interlock state, semi-linkage state and separated state.Certainly, under some occasions, also can only comprise two kinds of working staties, full interlock state and separated state.
Full interlock state is: when braking system 70 was braked braking plate 60 fully, because pedestal 20 is fixedlyed connected with braking plate 60, pedestal 20 was braked simultaneously fully; At this moment, the power of input drives input sun gear 40 and rotates, and drives planetary gear set 30 by input sun gear 40 and rotates, because pedestal 20 is fixed, planetary gear set 30 will inevitably drive output sun gear 50 and rotate, and then outputting power.
The semi-linkage state is: when braking system 70 is not braked braking plate 60 fully, that is to say retardation pressure by control brake system 70, control size to the braking force of braking plate 60, make braking plate 60 not check fully, at this moment, pedestal 20 is not braked fully, the power of input drives 40 rotations of input sun gear, drives planetary gear set 30 by input sun gear 40 and rotates, and fully do not braked owing to pedestal 20 this moment, still can rotate with respect to shell 10, planetary gear set 30 can drive pedestal 20 and rotate, and, still drive output sun gear 50 at planetary pinion 31 simultaneously and rotate by enough strength, outputting power is realized semi-linkage.Under the semi-linkage state, the size of braking strength that can be by adjusting braking system 70 is controlled linkage status, and then the size of the moment output of control output sun gear 50, satisfies the requirement of some occasions, for example vehicle starting etc.
Separated state is: when braking system 70 does not produce braking, during take-off the brake sheet 60, pedestal 20 is simultaneously released, at this moment, input sun gear 40 drives planetary gear set 30 and rotates, because pedestal 20 is not braked, can under driving, planetary gear set 30 rotate with respect to shell 10; And output sun gear 50 normally is connected with load, and the weight of load (as vehicle body) can be more much bigger than the weight of pedestal 20, and output sun gear 50 just can't rotate under the restriction of load so, has realized importing separating of power and output.
Claims (9)
1. brake clutch, it is characterized in that, comprise the shell that fixedly installs, be installed in rotation on pedestal on the described shell, be rotatably installed in planetary gear set in the described pedestal, stretch out from described pedestal both sides respectively and with the input sun gear of described planetary gear set engagement and export sun gear, be arranged on described input sun gear a side braking plate and be installed in braking system on the described shell; Described braking plate is fixedlyed connected with described pedestal, and is controlled the rotary state of described braking plate by described braking system braking;
Described braking plate and pedestal are separately positioned on the both sides of described shell;
Be provided with mounting hole on described shell, described pedestal is provided with assembly department; Described assembly department insert and by Bearing Installation on described mounting hole; Described braking plate is fixedly mounted on the described assembly department by fastening piece.
2. brake clutch according to claim 1 is characterized in that, described brake clutch comprises full interlock state, semi-linkage state and separated state;
Described full interlock state is: when described braking system was braked described braking plate fully, described pedestal was braked simultaneously fully, and described input sun gear drives described planetary gear set and rotates, and drove described output sun gear by described planetary gear set and rotated outputting power;
Described semi-linkage state is: when described braking system is not braked described braking plate fully, described pedestal is not braked fully, described input sun gear drives described planetary gear set and rotates, and drives described output sun gear and pedestal rotates simultaneously by described planetary gear set, realizes semi-linkage;
Described separated state is: when described braking system is unclamped described braking plate, described pedestal is simultaneously released, described input sun gear drives described planetary gear set and rotates, drive described pedestal by described planetary gear set and rotate, and described output sun gear can't rotate under the restriction of load with respect to described shell.
3. brake clutch according to claim 1 is characterized in that, described shell is the open circles tubular, and its circumference is provided with at least one mounting hole site of installing for described braking system;
Described braking system is the dismountable hydraulic braking sytem that is installed on the described mounting hole site, and described hydraulic braking sytem comprises the hydraulic power that the working pressure working solution is provided, the hydraulic pressure wheel cylinder that is connected with described hydraulic power and the brake clamp of described braking plate being braked by described hydraulic pressure wheel cylinder drive.
4. brake clutch according to claim 1 is characterized in that, described pedestal comprises by the preceding pedestal of fastening piece combination and back pedestal;
Described input sun gear and output sun gear comprise gear part and optical axis portion respectively;
Be provided with the axis hole that passes for the optical axis portion of described input sun gear with braking plate on the pedestal before described, on the axis hole of optical axis portion by Bearing Installation pedestal before described of described input sun gear;
Described back pedestal is provided with the axis hole that the optical axis portion for described output sun gear passes, and the optical axis portion of described output sun gear by Bearing Installation on the axis hole of described back pedestal.
5. brake clutch according to claim 4 is characterized in that, described pedestal internal fixation is provided with a plurality of back shafts, described planetary gear set by Bearing Installation on described back shaft; The sidewall of described pedestal is provided with the breach that partly stretches out for described planetary gear set.
6. brake clutch according to claim 4 is characterized in that, the planetary thickness of each of described planetary gear set is more than or equal to the thickness sum of the gear part of described input sun gear and output sun gear.
7. according to each described brake clutch of claim 1-6, it is characterized in that the axis of described input sun gear and output sun gear and is positioned at the axle core position of described planetary gear set on same axis; Described input sun gear is different with the size of exporting sun gear, corresponding, described planetary gear set comprises the different planetary gear set of two packet sizes of interlock, and the size of described two groups of planetary gear set is mated with the size of input sun gear and output sun gear respectively; Perhaps, described planetary gear set is a two-part, and two sections size is mated with described input sun gear and output sun gear respectively.
8. car transmissions comprise motor and gearbox, it is characterized in that, also comprise each described brake clutch of claim 1-7; The input sun gear of described brake clutch is connected with described motor, inserts the power of described motor; Described output sun gear is connected with described gearbox, drives described gearbox.
9. car transmissions according to claim 8, it is characterized in that, the shell of described brake clutch is fixedly mounted on the described motor, and described braking plate is arranged on described shell inboard, and described pedestal is arranged on the side of described shell away from described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106746XA CN101526117B (en) | 2009-04-20 | 2009-04-20 | Brake clutch and automotive transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106746XA CN101526117B (en) | 2009-04-20 | 2009-04-20 | Brake clutch and automotive transmission system |
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| Publication Number | Publication Date |
|---|---|
| CN101526117A CN101526117A (en) | 2009-09-09 |
| CN101526117B true CN101526117B (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910106746XA Expired - Fee Related CN101526117B (en) | 2009-04-20 | 2009-04-20 | Brake clutch and automotive transmission system |
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| Country | Link |
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| CN (1) | CN101526117B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI640703B (en) * | 2017-12-27 | 2018-11-11 | 立淵機械股份有限公司 | Power switching device |
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| CN105840388A (en) * | 2016-05-26 | 2016-08-10 | 朔州市三通亿达汽车电器有限责任公司 | One-way planetary reducer with buffering device for starter |
| CN105781846B (en) * | 2016-05-26 | 2020-06-09 | 朔州市三通亿达汽车电器有限责任公司 | Compact internal combustion engine starter with external electromagnetic switch |
| CN105840389A (en) * | 2016-05-26 | 2016-08-10 | 朔州市三通亿达汽车电器有限责任公司 | One-way planetary speed reducer for starter |
| CN106023772B (en) * | 2016-07-08 | 2018-11-06 | 广东机电职业技术学院 | Automatic gearbox teaching mode |
| CN109733125B (en) * | 2018-12-18 | 2021-11-09 | 江苏四达重工有限公司 | Wheel independent driving device of automatic guide trolley |
| CN110925342B (en) * | 2019-12-28 | 2021-06-04 | 北京工业大学 | Speed reduction device with slope non-return function |
-
2009
- 2009-04-20 CN CN200910106746XA patent/CN101526117B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI640703B (en) * | 2017-12-27 | 2018-11-11 | 立淵機械股份有限公司 | Power switching device |
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| CN101526117A (en) | 2009-09-09 |
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