CN105757199A - Ring knock-off protection structure for conical ring variable speed unit - Google Patents
Ring knock-off protection structure for conical ring variable speed unit Download PDFInfo
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- CN105757199A CN105757199A CN201610149905.4A CN201610149905A CN105757199A CN 105757199 A CN105757199 A CN 105757199A CN 201610149905 A CN201610149905 A CN 201610149905A CN 105757199 A CN105757199 A CN 105757199A
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- Prior art keywords
- cone
- transmission
- ring
- shaft shoulder
- line
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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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/42—Gearings providing a continuous range of gear ratios in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first mentioned members
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
The invention discloses a ring knock-off protection structure for a conical ring variable speed unit. The structure comprises a first transmission cone and a transmission ring, wherein the surface of the first transmission cone is in contact with one surface of the transmission ring; a shaft shoulder opposite to the cone surface is arranged at the small end of the first transmission cone; the shaft shoulder has a rotation body shape; the transmission ring, the shaft shoulder and the cone surface have the following geometrical matching relation; when the transmission ring is in contact with the shaft shoulder, a first contact point is formed between the transmission ring and the shaft shoulder; meanwhile, a second contact point is formed between the transmission ring and the cone surface; the distance from the first contact point to a cone axis is a first contact radius; the distance from the second contact point to the cone axis is a second contact radius; the first contact radius is smaller than the second contact radius. When the transmission ring is operated in a shaft shoulder extreme position at the small end of an input cone or an output cone, the transmission ring can prevent from impacting the shaft shoulder, and component damage is avoided.
Description
Technical field
The present invention relates to a kind of ring for conical ring formula buncher hit stop protection structure.
Background technology
Conical ring formula buncher (hereinafter referred to as KRG) is that a kind of employing input cone bores clamping transmission ring, the frictionally buncher of transmission with output.The design concept of KRG is the hydraulic pump avoiding adopting in any way, is only controlled by motor with simple and durable mechanical part.Compared with tradition infinitely variable transmission (CVT), this design concept of KRG makes it have big advantage in manufacturing cost and efficiency.
As it is shown in figure 1, in KRG transmission, input cone 2 ＇ and output cone 3 ＇ clamp transmission ring 1 ＇, the surfaces externally and internally of transmission ring 1 ＇ produces frictional force with input cone 2 ＇ and output cone 3 ＇ respectively, and power is delivered to output cone 3 ＇ from input cone 2 ＇ through transmission ring 1 ＇.
As in figure 2 it is shown, make a normal surface vertical with axis of cone line P ＇ by transmission ring 1 ＇ with the contact point of poppet surface.In the transmission process of KRG, if the transverse plane of transmission ring 1 ＇ is parallel with above-mentioned normal surface, then transmission ring 1 ＇ axis of cone line P ＇ to position will remain unchanged, contact point with input cone 2 ＇ and output cone 3 ＇ radius of turn constant, input cone 2 ＇ with output cone 3 ＇ maintenance specific gear ratios.Transmission ring 1 ＇ position now is back positive position.
As shown in Figure 3, Figure 4, in transmission process, if the transverse plane of transmission ring 1 ＇ is not parallel with above-mentioned normal surface, namely there is deflection, then transmission ring 1 ＇ can move along transmission element of a cone direction, the radius of turn that contact point bores 3 ＇ with input cone 2 ＇ and output changes, and then changes input cone 2 ＇ and the gear ratio of output cone 3 ＇.KRG can realize the change of gear ratio by changing the axial location of transmission ring 1 ＇.
Research shows, in the inflow side of contact point place transmission ring speed, the deflection of transmission ring 1 ＇ place plane is consistent with the moving direction of transmission ring 1 ＇.When under the rolling condition shown in Fig. 1, if transmission ring 1 ＇ is inside in the velocity of rotation direction at contact point place, if transmission ring 1 ＇ front portion has left avertence angle, then transmission ring 1 ＇ is moved to the left, as shown in Figure 3；Otherwise, then move right, as shown in Figure 4.
In traditional KRG conical ring transmission, when transmission ring 1 ＇ axially moves to the extreme position at two ends, can clash into other parts of the shaft shoulder of two cones or variator, thus causing the damage of transmission ring or associated components.
Summary of the invention
In order to overcome existing KRG transmission ring the limit hit stop in the problem of damage parts occurs, the invention provides a kind of ring for conical ring formula buncher and hit and stop protection structure.
The technical solution used in the present invention is:
Hit for the ring of conical ring formula buncher and stop protection structure; including the first transmission cone, transmission ring; the surface of the first transmission cone contacts with a surface of transmission ring, and the small end of the first described transmission cone is provided with the shaft shoulder relative with poppet surface, and the described shaft shoulder has the shape of revolving body；Described transmission ring, the shaft shoulder, poppet surface have following geometry matching relationship: when transmission ring contacts the shaft shoulder, first make contact is had between transmission ring and the shaft shoulder, there is the second contact point between transmission ring and poppet surface simultaneously, first make contact is the first contact radius to the distance of axis of cone line, second contact point is the second contact radius to the distance of axis of cone line, and the first described contact radius is less than the second contact radius.
Further, on the axle section made by described axis of cone line, the bus of described shaft shoulder tangent line on first make contact forms obtuse angle between transmission ring side and axis of cone line.Obtuse angle is conducive to forming clear and definite and stable first make contact between transmission ring and the shaft shoulder.
Further, the bus of the described shaft shoulder is straight line or curve.
Further, another surface of transmission ring contacts with the 3rd drive disk assembly, and transmission ring is transmission power between the first transmission cone and the 3rd drive disk assembly.
Further, the 3rd described drive disk assembly is the second transmission cone, and the first described transmission cone is input cone, and transmission ring is enclosed within the first transmission cone, and the second transmission cone is output cone；The cone nut line of the first transmission cone is parallel with the cone nut line that the second transmission is bored.
The first described transmission cone is identical with the tapering of the second transmission cone, and the axis of cone line of the first described transmission cone is parallel with the axis of cone line that the second transmission is bored, and big end is oppositely arranged with small end.
Or, the 3rd described drive disk assembly is the second transmission cone, and the second described transmission cone is input cone, and transmission ring is enclosed within the second transmission cone, and the first transmission cone is output cone；The cone nut line of the first transmission cone is parallel with the cone nut line that the second transmission is bored.
The first described transmission cone is identical with the tapering of the second transmission cone, and the axis of cone line of the first described transmission cone is parallel with the axis of cone line that the second transmission is bored, and big end is oppositely arranged with small end.
Work process:
In conical ring transmission process, when transmission ring bores the deflection of little extreme direction in this transmission lateral with the inflow of the speed at some tapered joint contact place, the shaft shoulder direction boring small end to transmission is moved by transmission ring.When transmission ring contacts the shaft shoulder, first make contact is had between transmission ring and the shaft shoulder, there is the second contact point between transmission ring and poppet surface simultaneously, first make contact is the first contact radius to the distance of axis of cone line, second contact point is the second contact radius to the distance of axis of cone line, and the first described contact radius is less than the second contact radius.Therefore, two contact point linear velocities are unequal, and the linear velocity at the second contact point place of transmission ring is more than the linear velocity at first make contact place, and transmission ring new deflection will occur, and new yawing moment is contrary with aforesaid deflection.Thus, the deflection of transmission ring is corrected, transmission ring the transmission axis of cone to moving direction be also changed, it is possible to avoid the shock of transmission ring and the shaft shoulder, it is to avoid parts damages.
Beneficial effects of the present invention is embodied in: when transmission ring is when the shaft shoulder extreme position operating of input cone or output cone small end, transmission ring can be avoided clashing into the shaft shoulder, it is to avoid parts damages.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing KRG conical ring drive mechanism.
Fig. 2 is the schematic top plan view that the transmission ring of the KRG mechanism of Fig. 1 is positioned at orthogonal plane, and vertical chain-dotted line represents that transmission ring 1 ＇'s returns positive position, V0Represent the direction of rotation of input cone 2 ＇.
Fig. 3 is the schematic top plan view that the transmission ring of the KRG mechanism of Fig. 1 deflects relative to orthogonal plane left-hand, and vertical chain-dotted line represents that transmission ring 1 ＇'s returns positive position, V0Represent the direction of rotation of input cone 2 ＇ and transmission ring 1 ＇, V1Represent the moving direction (to the left) of transmission ring 1 ＇, V12Represent the yawing moment of transmission ring 1 ＇.
Fig. 4 is the schematic top plan view that the transmission ring of the KRG mechanism of Fig. 1 deflects relative to orthogonal plane dextrad, and vertical chain-dotted line represents that transmission ring 1 ＇'s returns positive position, V0Represent the direction of rotation of input cone 2 ＇ and transmission ring 1 ＇, V2Represent the moving direction (to the right) of transmission ring 1 ＇, V22Represent the yawing moment of transmission ring 1 ＇.
Fig. 5 a is the asynchronous enforcement structural representation of tapering of the first transmission cone in the embodiment of the present invention 1 and the second transmission cone.
Fig. 5 b is the 3rd drive disk assembly in the embodiment of the present invention 1 is enforcement structural representation during cylinder.
Fig. 5 c be in the embodiment of the present invention 1 first transmission cone and second transmission bore tapering identical time enforcement structural representation.
Fig. 6 a is the asynchronous enforcement structural representation of tapering of the first transmission cone in the embodiment of the present invention 2 and the second transmission cone.
The first transmission cone that Fig. 6 b is in the embodiment of the present invention 2 is enforcement structural representation during cylinder.
Fig. 6 c be in the embodiment of the present invention 2 first transmission cone and second transmission bore tapering identical time enforcement structural representation.
Fig. 7 is I place's enlarged drawing of Fig. 5 c.
Fig. 8 a is the schematic diagram at position shown in Fig. 7 when the bus of the shaft shoulder is straight line.
Fig. 8 b is the schematic diagram at position shown in Fig. 7 when the bus of the shaft shoulder is sag vertical curve.
Fig. 8 c is the schematic diagram at position shown in Fig. 7 when the bus of the shaft shoulder is convex curve.
Fig. 9 is II place's enlarged drawing of Fig. 6 c.
Figure 10 a is the schematic diagram at position shown in Fig. 9 when the bus of the shaft shoulder is straight line.
Figure 10 b is the schematic diagram at position shown in Fig. 9 when the bus of the shaft shoulder is sag vertical curve.
Figure 10 c is the schematic diagram at position shown in Fig. 9 when the bus of the shaft shoulder is convex curve.
Figure 11 is the motion analysis figure of the state underdrive ring corresponding to Fig. 5 c, and wherein, plane a represents time positive position of transmission ring, and plane b represents the initial deflection position of transmission ring, V01Represent the direction of rotation of the first transmission cone, V02Represent the rotation direction of transmission ring place plane, r1It is the contact radius of first make contact 211, Vr1Represent the transmission ring velocity at first make contact 211；r2It is the contact radius of first make contact 221, Vr2Represent transmission ring 1 the second contact point 221 velocity.
Figure 12 is the motion analysis figure of the state underdrive ring corresponding to Fig. 6 c, and wherein, plane a represents time positive position of transmission ring, and plane b represents the initial deflection position of transmission ring, V01Represent the direction of rotation of the first transmission cone, V02Represent the rotation direction of transmission ring place plane, R1It is the contact radius of first make contact 311, VR1Represent first make contact 311 velocity；R2It is the contact radius of first make contact 321, VR2Represent the second contact point 321 velocity.
Detailed description of the invention
Embodiment 1
With reference to accompanying drawing 5a, 5c, 7,8a, 8b, 8c, 11:
Hit for the ring of conical ring formula buncher and stop protection structure; including the first transmission cone 2, transmission ring 1; the surface of the first transmission cone 2 contacts with a surface of transmission ring 1; the small end of the first described transmission cone 2 is provided with the shaft shoulder 21 relative with poppet surface 22, and the described shaft shoulder 21 has the shape of revolving body；Described transmission ring 1, the shaft shoulder 21, poppet surface 22 have following geometry matching relationship: when transmission ring 1 contacts the shaft shoulder 21, first make contact 211 is had between transmission ring 1 and the shaft shoulder 21, having the second contact point 221 between transmission ring 1 and poppet surface, first make contact 211 is the first contact radius r to the distance of axis of cone line P simultaneously1, the second contact point 221 is the second contact radius r to the distance of axis of cone line P2, the first described contact radius r1Less than the second contact radius r2。
The surface of transmission ring 1 of the present invention refers to inner surface and the outer surface of transmission ring 1, and wherein inner surface is in the face of the axis of transmission ring 1.
By on the described axis of cone line P axle section made, the bus 212 of the described shaft shoulder 21 tangent line 2111 on first make contact 211 forms obtuse angle alpha between transmission ring 1 side and axis of cone line P.Obtuse angle alpha is conducive to forming clear and definite and stable first make contact 211 between transmission ring 1 and the shaft shoulder 21.
The bus 212 of the described shaft shoulder 21 is straight line or curve.
Another surface of transmission ring 1 contacts with the 3rd drive disk assembly, and transmission ring 1 is transmission power between the first transmission cone 2 and the 3rd drive disk assembly.As a preference, the 3rd described drive disk assembly is the second transmission cone 3, and the first described transmission cone 2 is input cone, and transmission ring 1 is enclosed within the first transmission cone 2, and the second transmission cone 3 is output cone；The cone nut line of the first transmission cone 2 is parallel with the cone nut line that the second transmission bores 3.First transmission cone 2 bores the tapering of 3 from the second transmission can be different, as shown in Figure 5 a；When both taperings are identical, as shown in Figure 5 c, then the axis of cone line P of the first transmission cone 2 and the second transmission cone 3 is parallel to each other, and big end is oppositely arranged with small end.
The work process of the present embodiment is as follows:
As shown in Fig. 5 a, 5c, when transmission ring 1 contacts the shaft shoulder 21, between transmission ring 1 and the shaft shoulder 21, there is first make contact 211, have the second contact point 221 between transmission ring 1 and poppet surface 22, as shown in Figure 7 simultaneously.First make contact 211 is the first contact radius r to the distance of axis of cone line P1, the second contact point 221 is the second contact radius r to the distance of axis of cone line P2, the first described contact radius r1Less than the second contact radius r2.Fig. 8 a, Fig. 8 b, Fig. 8 c respectively show the bus 212 of the shaft shoulder 21 when being straight line, sag vertical curve, convex curve, transmission ring 1 cross section and its tangent relation.
As shown in figure 11, the linear velocity V at the second contact point 221 place of transmission ring 1r2Linear velocity V more than first make contact 211 placer1, when both linear velocities do not wait, transmission ring 1 is towards turning anticlockwise.Seeing in the inflow side of contact point place transmission ring 1 speed, the transmission ring 1 place plane of the present embodiment was biased into left side originally, and transmission ring 1 shaft shoulder 21 to the left moves.When transmission ring 1 is to turning anticlockwise, transmission ring 1 just creates the motion deflected to the right, thus correct for original attitude deflected to the left.
Therefore, the transmission ring 1 moving direction on transmission is bored also is changed, it is possible to avoid the shock of transmission ring and the shaft shoulder, it is to avoid parts damages.
Embodiment 2
With reference to accompanying drawing 6a, 6c, 9,10a, 10b, 10c, 12:
The difference of the present embodiment and embodiment 1 is: the 3rd described drive disk assembly is the second transmission cone 20, and the second described transmission cone 20 is input cone, and transmission ring 1 is enclosed within the second transmission and bores on 20, and the first transmission cone 30 is output cone；The cone nut line of the first transmission cone 30 is parallel with the cone nut line that the second transmission bores 20.First transmission cone 30 bores the tapering of 20 from the second transmission can be different, as shown in Figure 6 a；When both taperings are identical, as fig. 6 c, then the axis of cone line P of the first transmission cone 30 and the second transmission cone 20 is parallel to each other, and big end is oppositely arranged with small end.
By on the described axis of cone line P axle section made, the bus 312 of the described shaft shoulder 31 tangent line 3111 on first make contact 311 forms obtuse angle alpha between transmission ring side and axis of cone line P.Obtuse angle alpha is conducive to forming clear and definite and stable first make contact 311 between transmission ring 1 and the shaft shoulder 31.
The bus 312 of the described shaft shoulder 31 is straight line or curve.
All the other are identical.
The work process of the present embodiment is as follows:
As shown in Fig. 6 a, 6c, when transmission ring 1 contacts the shaft shoulder 31, between transmission ring 1 and the shaft shoulder 31, there is first make contact 311, have the second contact point 321 between transmission ring 1 and poppet surface 32, as shown in Figure 9 simultaneously.First make contact 311 is the first contact radius R to the distance of axis of cone line P1, the second contact point 321 is the second contact radius R to the distance of axis of cone line P2, the first described contact radius R1Less than the second contact radius R2.Figure 10 a, Figure 10 b, Figure 10 c respectively show the bus 312 of the shaft shoulder 31 when being straight line, sag vertical curve, convex curve, transmission ring 1 cross section and its tangent relation.
As shown in figure 12, transmission ring 1 is at the linear velocity v at the second contact point 321 placeR2Linear velocity V more than first make contact 311 placeR1, when both linear velocities do not wait, transmission ring 1 is towards revolution clockwise.Seeing in the inflow side of contact point place transmission ring speed, the transmission ring 1 place plane of the present embodiment was biased into right side originally, and transmission ring 1 shaft shoulder to the right moves.When transmission ring 1 is to when turning round clockwise, transmission ring 1 just creates the motion deflected to the left, thus correct for original attitude deflected to the right.
Therefore, the transmission ring 1 moving direction on transmission is bored also is changed, it is possible to avoid the shock of transmission ring and the shaft shoulder, it is to avoid parts damages.
Embodiment 3
With reference to Fig. 5 b, 7,8a, 8b, 8c, 11, the difference of the present embodiment and embodiment 1 is: the 3rd described drive disk assembly is cylinder, and all the other are identical.
Additionally, the 3rd drive disk assembly can also be other revolving bodies except cylinder, cone.
The work process of its work process similar embodiment 1.
Embodiment 4
With reference to Fig. 6 b, 9,10a, 10b, 10c, 12, the difference of the present embodiment and embodiment 2 is: the 3rd described drive disk assembly is cylinder, and all the other are identical.
Additionally, the 3rd drive disk assembly can also be other revolving bodies except cylinder, cone.
The work process of its work process similar embodiment 2.
Content described in this specification embodiment is only enumerating of the way of realization to inventive concept; protection scope of the present invention is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also and in those skilled in the art according to present inventive concept it is conceivable that equivalent technologies means.
Claims (8)
1. hit for the ring of conical ring formula buncher and stop protection structure; it is characterized in that: include the first transmission cone, transmission ring; the surface of the first described transmission cone contacts with a surface of transmission ring; the small end of the first described transmission cone is provided with the shaft shoulder relative with poppet surface, and the described shaft shoulder has the shape of revolving body；Described transmission ring, the shaft shoulder, poppet surface have following geometry matching relationship: when transmission ring contacts the shaft shoulder, first make contact is had between transmission ring and the shaft shoulder, there is the second contact point between transmission ring and poppet surface simultaneously, first make contact is the first contact radius to the distance of axis of cone line, second contact point is the second contact radius to the distance of axis of cone line, and the first described contact radius is less than the second contact radius.
2. the ring for conical ring formula buncher as claimed in claim 1 hits and stops protection structure; it is characterized in that: on the axle section made by described axis of cone line, the bus of described shaft shoulder tangent line on first make contact forms obtuse angle between transmission ring side and axis of cone line.
3. the ring for conical ring formula buncher as claimed in claim 1 or 2 hits and stops protection structure, it is characterised in that: the bus of the described shaft shoulder is straight line or curve.
4. the ring for conical ring formula buncher as claimed in claim 3 hits and stops protection structure; it is characterized in that: another surface of described transmission ring contacts with the 3rd drive disk assembly, described transmission ring is transmission power between the first transmission cone and the 3rd drive disk assembly.
5. the ring for conical ring formula buncher as claimed in claim 4 hits and stops protection structure; it is characterized in that: the 3rd described drive disk assembly is the second transmission cone; the first described transmission cone is input cone, and described transmission ring is enclosed within the first transmission cone, and the second described transmission cone is output cone；The cone nut line of the first described transmission cone is parallel with the cone nut line that the second transmission is bored.
6. the ring for conical ring formula buncher as claimed in claim 5 hits and stops protection structure; it is characterized in that: the first described transmission cone is identical with the tapering of the second transmission cone; the axis of cone line of the first described transmission cone is parallel with the axis of cone line that the second transmission is bored, and big end is oppositely arranged with small end.
7. the ring for conical ring formula buncher as claimed in claim 4 hits and stops protection structure; it is characterized in that: the 3rd described drive disk assembly is the second transmission cone; the second described transmission cone is input cone, and described transmission ring is enclosed within the second transmission cone, and the first described transmission cone is output cone；The cone nut line of the first described transmission cone is parallel with the cone nut line that the second transmission is bored.
8. the ring for conical ring formula buncher as claimed in claim 7 hits and stops protection structure; it is characterized in that: the first described transmission cone is identical with the tapering of the second transmission cone; the axis of cone line of the first described transmission cone is parallel with the axis of cone line that the second transmission is bored, and big end is oppositely arranged with small end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610149905.4A CN105757199B (en) | 2016-03-16 | 2016-03-16 | Ring for conical ring formula buncher, which is hit, stops protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610149905.4A CN105757199B (en) | 2016-03-16 | 2016-03-16 | Ring for conical ring formula buncher, which is hit, stops protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105757199A true CN105757199A (en) | 2016-07-13 |
| CN105757199B CN105757199B (en) | 2018-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610149905.4A Active CN105757199B (en) | 2016-03-16 | 2016-03-16 | Ring for conical ring formula buncher, which is hit, stops protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105757199B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR31504E (en) * | 1925-08-27 | 1927-03-16 | Gradual and automatic gear change | |
| CN1606669A (en) * | 2003-01-06 | 2005-04-13 | 乌尔里克·罗斯 | Pressing device for tensioning two gearing elements, gearing provided with a pressing device of this type, and method for operating such a friction gearing |
| CN101655143A (en) * | 2008-07-16 | 2010-02-24 | 乌尔里克·罗斯 | Friction ring drive with a friction ring and method for manufacturing the same |
| CN102654181A (en) * | 2011-03-04 | 2012-09-05 | 乌尔里克·罗斯 | Conical friction ring transmission |
| CN205423724U (en) * | 2016-03-16 | 2016-08-03 | 浙江德孚力汽车变速箱有限公司 | A ring hits and stops protection architecture for boring ring type steeples speed change device |
-
2016
- 2016-03-16 CN CN201610149905.4A patent/CN105757199B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR31504E (en) * | 1925-08-27 | 1927-03-16 | Gradual and automatic gear change | |
| CN1606669A (en) * | 2003-01-06 | 2005-04-13 | 乌尔里克·罗斯 | Pressing device for tensioning two gearing elements, gearing provided with a pressing device of this type, and method for operating such a friction gearing |
| CN101655143A (en) * | 2008-07-16 | 2010-02-24 | 乌尔里克·罗斯 | Friction ring drive with a friction ring and method for manufacturing the same |
| CN102654181A (en) * | 2011-03-04 | 2012-09-05 | 乌尔里克·罗斯 | Conical friction ring transmission |
| CN205423724U (en) * | 2016-03-16 | 2016-08-03 | 浙江德孚力汽车变速箱有限公司 | A ring hits and stops protection architecture for boring ring type steeples speed change device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105757199B (en) | 2018-01-23 |
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Effective date of registration: 20200201 Address after: 310014 room 2506, No. 203, Chaohui Road, Xiacheng District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Fukang Venture Capital Co., Ltd Address before: 310016, 13 floor, International Building, No. 396, theatre Road, Qianjiang New Town, Hangzhou, Zhejiang, Jianggan District Patentee before: Zhejiang Defuli Automobile Transmission Co., Ltd. |
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