CN205173389U - Friction formula torque converter - Google Patents
Friction formula torque converter Download PDFInfo
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- CN205173389U CN205173389U CN201521033764.7U CN201521033764U CN205173389U CN 205173389 U CN205173389 U CN 205173389U CN 201521033764 U CN201521033764 U CN 201521033764U CN 205173389 U CN205173389 U CN 205173389U
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- roller
- inner ring
- outer shroud
- converters
- large roller
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Abstract
The utility model discloses a friction formula torque converter, including inner ring, big roller and outer loop, the inner ring is input unit, equallys divide on the all side ring faces of inner ring to be equipped with two at least concave grooves, and every concave groove corresponds a big roller respectively, the outer loop is output unit, and the outer loop cover is laid outside the inner ring and with the inner ring is coaxial, and the inboard periphery of outer loop forms the interior raceway of outer loop and coordinates with each roller. When rotational speed and load changed, self -adaptation work was realized to the roller under the combined action of centrifugal force and inner ring cam, finally realize friction formula torque converter's shutting output, automatic speed changing and bending moment, satisfied different application. It is strong that this torque converter structure has a simple structure, transmission efficiency height, infinitely variable, self -adaptation, has automatic blocking function, advantage such as energy -concerving and environment -protective.
Description
Technical field
The utility model discloses a kind of friction type torque-converters, can realize the transmission system of stepless change, automatic torque-changing.
Background technique
At present, most widely used torque-converters is fluid torque converter, also known as torque converter, is arranged between motor and speed changer, with hydraulic oil (ATF) for working medium, plays transmitting torque, bending moment, the effect of speed change and clutch.The non-rigid torque converter of its to be a kind of with liquid be working medium, is one of pattern of hydraudynamic drive, applies extremely extensive.Fluid torque converter is made up of pump impeller, turbine and guide wheel etc., fluid torque converter not only increases the moment of torsion of motor, but also realize flexibly connecting between motor and automatic transmission case, not only efficiently solve the flame-out problem of motor but also self shifter can be realized freely.
The major defect of fluid torque converter is complex structure, and cost is higher, and quality is comparatively large, and owing to there is hydraulic losses, the transmission efficiency of machine is decreased, and thus machine fuel Economy and propulsive efficiency decrease.In order to address this problem, the torque converter on some automobile has a lock-up clutch to improve transmission efficiency, but the system of complexity and expensive transmission part are all allow the subject matter of market in repair service and user's headache all the time.
Model utility content
For the deficiencies in the prior art, the utility model provides a kind of friction type torque-converters, on the basis to multisystem researchs such as friction, transmission, material and lubrications, by brand-new design, change traditional torque-converters form, simplify the structure of torque-converters, improve transmission efficiency, reduce costs, there is the advantages such as superior performance, adaptivity are strong, stepless change, automatic blocking, environmental protection.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of friction type torque-converters, comprises inner ring, large roller and outer shroud, wherein:
Inner ring, it is input unit, and inner circumference side ring surface is all arranged with at least two Baltimore grooves, and each Baltimore groove is a corresponding large roller respectively;
Outer shroud, it is output unit, and exterior ring cap is outer and coaxially lay with inner ring in inner ring, and the inside circumference face of outer shroud forms raceway in outer shroud and also coordinates with each roller crush-cutting;
Large roller, it is arranged between inner and outer rings, has gap between the large roller in adjacent Baltimore groove;
Described inner ring and large roller, realize that automatic blocking exports by mechanical friction transmission between roller and outer shroud greatly, automatic speed changing and bending moment.
Further, described inner ring and roller mineralization pressure angle α, pressure angle α are 12 ° ~ 40 °.
Further, raceway diameter D and large roller diameter d ratio D/d=1.2 ~ 6 in outer shroud.
Further, the gap s>0.2mm of adjacent large roller.
Further, be provided with more than one little roller between adjacent large roller, each little roller diameter is less than large roller, and on the inner ring circumferential surface of little roller between inner ring Baltimore groove, the outer roller surface of little roller is outer shroud inside circumference face.
Enter on one, between adjacent little roller and the gap s>0.2mm of large roller and little roller.
The utility model tool has the following advantages:
(1) structure is simple
Friction type torque-converters main structure body is made up of inner ring, roller and outer shroud, compares pump impeller, turbine and guide wheel in torsion torque-converters, and structure is simple, and reliability is strong, cost is low, environmental protection.
(2) there is automatic speed changing, automatically increase square and automatic blocking function
1) when rotating speed and load change, large and small roller realizes self adaption work under the acting in conjunction of centrifugal force and inner ring cam, finally realizes the locking output of friction type torque-converters, automatic speed changing and bending moment;
2) structural design of inner ring, large roller, little roller and outer shroud jointly determines self-shifting scope and increases the multiple of square, therefore, can mate different parameters to meet the requirement of different application occasion.
(3) transmission efficiency is high
According to law of conservation of energy, input energy is converted into except the energy loss of roller rotation except a very little part, and all the other are all used for exporting, therefore, and comparatively fluid moment device: its oil temperature is low, transmission response is fast, and transmission efficiency is high.
The utility model friction type torque-converters structure, is mainly used in the fields such as automobile, engineering machinery, military vehicle, oil, chemical industry, mine, metallurgical machinery, and application widely.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the utility model friction type bending moment large roller force analysis schematic diagram.
Fig. 3 the utility model friction type bending moment outer shroud and inner ring cam rotate schematic diagram.
Fig. 4 is that the utility model only comprises large roller construction schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Embodiment: refer to Fig. 4, a kind of friction type torque-converters, comprises inner ring 1, large roller 2 and outer shroud 3, wherein:
Inner ring 1, it is input unit, inner circumference side ring surface is all arranged with at least two Baltimore grooves 101 and forms inner ring cam, and each Baltimore groove is a corresponding large roller respectively, arranges the large roller 2 of 3 Baltimore grooves and correspondence in Fig. 4;
Outer shroud 3, it is output unit, it is outer and coaxially lay with inner ring 1 that outer shroud 3 is enclosed within inner ring 1, the inside circumference face of outer shroud 3 forms raceway in outer shroud and coordinates with each roller crush-cutting, here crush-cutting refers to that roller face to be pressed in outer shroud on raceway, because roller and outer shroud are arc shaped surface, both must tangently compress;
Large roller 2, it is arranged between inner and outer rings, has gap between the large roller in adjacent Baltimore groove, and to be that roller in each Baltimore groove is independent input conversion by inner ring 1 and pass to outer shroud 3 and export object;
When rotating speed and load change, each roller 2 realizes self adaption work under the acting in conjunction of centrifugal force and inner ring 1, simultaneously by inner ring 1 and roller 2, mechanical friction transmission between roller 2 and outer shroud 3, realizes that automatic blocking exports, automatic speed changing and bending moment.
Friction type torque-converters, inner ring 1 can be connected to form power input with input shaft, and outer shroud 3 can be connected with output flange or other output blocks, it is different that its work and fluid torque converter have in essence, it can according to the change of load and speed, under the acting in conjunction of centrifugal force and inner ring cam, by inner ring and the mechanical friction transmission between size roller and outer shroud, realize the functions such as automatic blocking, automatic speed changing and bending moment.
The utility model kind friction type torque-converters structure, it comprises input shaft, inner ring cam, large roller, little roller, outer shroud and output flange.Power is transmitted by input shaft, and input shaft is connected with inner ring cam; Load transfer is to output flange; Inner ring cam and outer shroud are coaxially arranged; Between inner ring cam and outer shroud, circumference places multiple large roller, and outer shroud is connected with output flange.
As Fig. 1, more than one little roller 4 is provided with between adjacent large roller 2, each little roller 4 diameter is less than large roller 2, on the inner ring circumferential surface of little roller 4 between inner ring Baltimore groove, the outer roller surface of little roller is outer shroud inside circumference face, arranges on inner circumference side ring surface and be all arranged with 4 Baltimore grooves 101 in Fig. 1 embodiment.
As shown in Figure 2, the utility model friction type torque-converters increasing square mainly through change roller 2 act on raceway in outer shroud 3 active force and change the arm of force realize.The power that inner ring 1 acts on large roller 2 is delivered to outer shroud 3, and now, active force changes, and meanwhile, the arm of force is also by L
1become L
2, the arm of force is elongated.Specific as follows:
According to moment of torsion formula: T=FL
Wherein:
T is moment of torsion;
F drives the power rotated;
L is the arm of force;
F
xfor the tangential force of raceway in single roller and outer shroud;
F
yfor the radial force of raceway in single roller and outer shroud;
F
fromfor the centrifugal force of large roller;
α is inner ring and corresponding large roller pressure angle;
M is large roller quality;
V is the linear velocity of raceway in the relative outer shroud of large roller;
R is the radius of raceway in outer shroud.
According to Fig. 1 and 2, outside inner ring 1, anchor ring is provided with Baltimore groove 101 and forms inner ring cam, and each Baltimore groove is a corresponding large roller 2 respectively.In outer shroud, the ratio D/d size of raceway diameter D and large roller diameter d determines the size that arm of force L changes multiple, L in Fig. 2
1represent the distance of point of contact to center of circle o of inner ring cam Baltimore groove and large roller, L
2represent the distance of point of contact to center of circle o of raceway and large roller in outer shroud, wherein D/d value is larger, L
2/ L
1ratio is less, and arm of force change multiple is little, otherwise it is long then to change multiple.Little not the plaing a part of arm of force change multiple increases square, although multiple is too large increase square successful, but the requirement of rotating speed cannot be met, therefore, raceway diameter D and large roller diameter d ratio D/d=1.2 ~ 6 in outer shroud, large roller diameter accounts for 1/6 ~ 5/6 of raceway diameter in outer shroud, comprises all values between 1/6 to 5/6, as 2/6,2.5/6,3/6,3.5/6,4/6 etc., and then the multiple that correspondence causes the arm of force to change is 1.5 ~ 5.5.
Meanwhile, according to
, when rotating speed one timing, rotary driving force F change multiple by
determine, namely determined by the pressure angle α of inner ring cam and the large roller of correspondence and coefficientoffrictionμ, the value of tan α must be greater than coefficientoffrictionμ, too littlely cannot realize dynamic bending moment.Putting before this, pressure angle α is less, and torque increment multiple is comparatively large, otherwise torque increment multiple is then less.Suppose coefficientoffrictionμ=0.08, when α=10 °,
when α=30 °,
according to friction type torque-converters Structural Design Requirement, inner ring cam and corresponding large roller pressure angle α are 12 ° ~ 40 °.
The bending moment of the utility model friction type torque-converters is determined jointly by D/d value, pressure angle α and centrifugal force, therefore, according to the requirement of load and operating mode, can design, to meet the application of different field to friction type torque-converters structure.
In Fig. 1, inner ring by with large roller friction driving, and then realize the work of friction type torque-converters with the friction of little roller and outer shroud, finally realize the function of automatic speed changing and bending moment.Wherein, the number of large roller and the corresponding of inner ring cam groove, the number of large roller be 2 and more than, when the number of large roller is 1, inner ring cam is difficult to drive large roller and roller to rotate, and friction type torque-converters cannot normally work.
Minimum clearance s between each adjacent roller of the utility model is greater than 0.2mm, due to the existence of machining error and assembly error, when gap between adjacent roller is less than 0.2mm, easily there is stuck damage in frictional force torque-converters, therefore the gap between roller can not be less than 0.2mm, gap s between the utility model adjacent roller is greater than 0.2mm, not only refer to the gap of adjacent little roller, also be applicable between large roller and little roller, little roller is arranged between two large rollers also can roll, therefore, inner ring by with large roller friction driving, large roller and then promote adjacent little roller, and then realize the work of friction type torque-converters with the friction of little roller and outer shroud.
As shown in Figure 3, the locking principle of friction type torque-converters of the present utility model: when rotating speed reaches certain speed and load is less, large and small roller static friction effect lower inner ring cam rotate and outer shroud link into an integrated entity, torque converter locking output, n
1=n
2; When load continues to increase to a certain degree, the speed n of outer shroud
2reduce, each roller and outer shroud relative movement, be in slipping state, n
1> n
2now each roller is under the effect of inner ring cam, realizes automatic speed changing and bending moment, to meet the requirement of load.After effect a period of time, speed promotes, and load reduces, and automatically switches to static friction between large and small roller and outer shroud by kinetic friction, and friction factor increases, and inner ring cam, large roller, little roller and outer shroud link into an integrated entity n again
1=n
2, torque-converters again automatic blocking exports.
The utility model discloses a kind of friction type torque-converters structure, and it comprises input shaft, inner ring cam, large roller, roller, outer shroud and output flange.Power is transmitted by input shaft, and input shaft is connected with inner ring cam; Load transfer is to output flange; Inner ring cam and outer shroud are coaxially arranged; Between inner ring cam and outer shroud, circumference places multiple large roller, and outer shroud is connected with output flange.When rotating speed and load change, roller realizes self adaption work under the acting in conjunction of centrifugal force and inner ring cam, finally realizes the locking output of friction type torque-converters, automatic speed changing and bending moment, meets different application.This torque-converters structure has that structure is simple, transmission efficiency is high, stepless change, self adaption are strong, has the advantages such as automatic blocking function, energy-conserving and environment-protective.
Comprehensively above-mentioned, this torque-converters structure has that structure is simple, transmission efficiency is high, realizes automatic speed changing according to the change of load and speed and automatically increase square, has the advantages such as automatic blocking.Change traditional torque-converters form, reduce costs, adaptivity is strong, environmental protection, Be very effective.
Above, be only the embodiment utilizing this origination techniques content, the modification that any those skilled in the art use this creation to do, change, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (6)
1. a friction type torque-converters, is characterized in that comprising inner ring, large roller and outer shroud, wherein:
Inner ring, it is input unit, and inner circumference side ring surface is all arranged with at least two Baltimore grooves, and each Baltimore groove is a corresponding large roller respectively;
Outer shroud, it is output unit, and exterior ring cap is outer and coaxially lay with inner ring in inner ring, and the inside circumference face of outer shroud forms raceway in outer shroud and also coordinates with each roller crush-cutting;
Large roller, it is arranged between inner and outer rings, has gap between the large roller in adjacent Baltimore groove;
Described inner ring and large roller, realize that automatic blocking exports by mechanical friction transmission between roller and outer shroud greatly, automatic speed changing and bending moment.
2. friction type torque-converters according to claim 1, is characterized in that: described inner ring and roller mineralization pressure angle α, pressure angle α are 12 ° ~ 40 °.
3. friction type torque-converters according to claim 1, is characterized in that: raceway diameter D and large roller diameter d ratio D/d=1.2 ~ 6 in outer shroud.
4. according to the friction type torque-converters one of claims 1 to 3 Suo Shu, it is characterized in that: the gap s>0.2mm of adjacent large roller.
5. according to the friction type torque-converters one of claims 1 to 3 Suo Shu, it is characterized in that: between adjacent large roller, be provided with more than one little roller, each little roller diameter is less than large roller, on the inner ring circumferential surface of little roller between inner ring Baltimore groove, the outer roller surface of little roller is outer shroud inside circumference face.
6. friction type torque-converters according to claim 5, is characterized in that: between adjacent little roller and the gap s>0.2mm of large roller and little roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033764.7U CN205173389U (en) | 2015-12-11 | 2015-12-11 | Friction formula torque converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033764.7U CN205173389U (en) | 2015-12-11 | 2015-12-11 | Friction formula torque converter |
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| Publication Number | Publication Date |
|---|---|
| CN205173389U true CN205173389U (en) | 2016-04-20 |
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ID=55737386
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521033764.7U Active CN205173389U (en) | 2015-12-11 | 2015-12-11 | Friction formula torque converter |
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| Country | Link |
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| CN (1) | CN205173389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017097254A1 (en) * | 2015-12-11 | 2017-06-15 | 马鞍山支点传孚智能摩擦工业研究院有限公司 | Friction type torque converter |
-
2015
- 2015-12-11 CN CN201521033764.7U patent/CN205173389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017097254A1 (en) * | 2015-12-11 | 2017-06-15 | 马鞍山支点传孚智能摩擦工业研究院有限公司 | Friction type torque converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161205 Address after: 243000 Anhui City, Ma'anshan Province Economic and Technological Development Zone, Jinshan Road, No. 1, Building 102, room 1188, No. Patentee after: Ma'anshan Chuan Fu intelligent friction fulcrum Industry Research Institute Co. Address before: 361000 Fujian province Xiamen torch hi tech Zone (Xiangan) Industrial Zone Jianye Building Room L201 Patentee before: Chuan Fu Technology (Xiamen) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180726 Address after: 361000 Fujian Xiamen torch high tech Zone (Xiangan) Industrial Zone Xiangan No. 3701 North Road 6 Patentee after: Chuan Fu Technology (Xiamen) Co., Ltd. Address before: 243000 Room 102, 1188 Jinshan Road, Ma'anshan economic and Technological Development Zone, Ma'anshan, Anhui, 102 Patentee before: Ma'anshan Chuan Fu intelligent friction fulcrum Industry Research Institute Co. |