CN111322358A - Two keep off derailleur with oil circuit structure - Google Patents

Two keep off derailleur with oil circuit structure Download PDF

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Publication number
CN111322358A
CN111322358A CN201910833507.8A CN201910833507A CN111322358A CN 111322358 A CN111322358 A CN 111322358A CN 201910833507 A CN201910833507 A CN 201910833507A CN 111322358 A CN111322358 A CN 111322358A
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CN
China
Prior art keywords
oil
clutch
path
input shaft
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910833507.8A
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Chinese (zh)
Inventor
罗南昌
周荣斌
雷作钊
罗天生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Zhongwei Power Technology Co Ltd
Original Assignee
Fujian Zhongwei Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujian Zhongwei Power Technology Co Ltd filed Critical Fujian Zhongwei Power Technology Co Ltd
Priority to CN201910833507.8A priority Critical patent/CN111322358A/en
Publication of CN111322358A publication Critical patent/CN111322358A/en
Pending legal-status Critical Current

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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
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
    • F16H2061/062—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means for controlling filling of clutches or brake servos, e.g. fill time, fill level or pressure during filling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention provides a two-gear transmission with an oil path structure, which comprises an input shaft 10, an output shaft 20, a switching type double clutch 50, a shell 40 and the oil path structure, wherein the oil path structure comprises a shell oil path 31, an input shaft oil path 32, an output shaft 20 oil path and a clutch oil path 33. The switching double clutch 50 is configured to transmit hydraulic oil through the housing oil passage 31, the input shaft oil passage 32, and the clutch oil passage 33, and perform a clutch operation of the switching double clutch 50. The oil circuit structure is filled with hydraulic oil, so that the oil pressure balance in the piston cavity of the switching type double clutch can be broken only by adjusting a small amount of hydraulic oil, the switching type double clutch is driven to perform clutch operation, and the effect of quickly switching the clutch is achieved.

Description

Two keep off derailleur with oil circuit structure
Technical Field
The invention relates to the field of transmissions, in particular to a two-gear transmission with an oil way structure.
Background
The transmission is a set of transmission devices for coordinating the rotational speed of the engine and/or the motor with the actual running speed of the wheels for optimum performance of the engine and/or the motor. The transmission may produce different gear ratios between the engine and/or the electric machine and the wheels during vehicle travel. However, in the second gear vehicle, the second gear transmission needs to be engaged by more than two sets of gear sets, which results in a larger size of the conventional transmission. And the power transmission route of current two grades of derailleurs is not only, and gearshift is mostly synchronous ware or pulls out the fork structure, when switching the gear shifting, and the switching time clearance is longer.
Disclosure of Invention
Therefore, a compact transmission structure is needed to be provided, and the problem that the switching time gap is long when the gears of the existing transmission are changed is solved.
In order to achieve the above object, the inventor provides a two-gear transmission with an oil path structure, which comprises an input shaft, an output shaft, a switching type double clutch, a shell and the oil path structure;
the central line of the input shaft and the central line of the output shaft are arranged in parallel, the input end of the input shaft and the output end of the output shaft respectively penetrate through two opposite side walls of the shell and are arranged in the shell, the input end of the input shaft protrudes out of the shell, and the output end of the output shaft protrudes out of the shell;
the switching type double clutch is arranged on an input shaft, the input shaft is provided with a first input gear and a second input gear, the output shaft is provided with a first output gear and a second output gear, the first input gear and the first output gear are meshed with each other, the second input gear and the second output gear are meshed with each other, the switching type double clutch is positioned between the first input gear and the second input gear, and the switching type double clutch is used for controlling the first input gear or the second input gear and the input shaft to perform mutual exclusion clutch operation;
the oil circuit structure comprises a shell oil circuit, an input shaft oil circuit and a clutch oil circuit, wherein the shell oil circuit is arranged in the shell, the input shaft oil circuit is arranged in the input shaft, and the shell oil circuit is communicated with the input shaft oil circuit; the clutch oil circuit is arranged in the switching type double clutch, and the input shaft oil circuit is communicated with the clutch oil circuit.
Furthermore, the casing oil path is a double-hole conveying oil path, an oil inlet of the double-hole conveying oil path is arranged on the outer side face of the casing, and an oil outlet of the double-hole conveying oil path is arranged on the inner face of the shaft hole of the casing input shaft.
Further, the clutch oil path comprises a first oil guide passage and a second oil guide passage;
the first oil guide channel is arranged between one side of the piston inner cavity of the clutch and the inner side surface of the inner hole of the clutch, and the second oil guide channel is arranged between the other side of the piston inner cavity of the clutch and the inner side surface of the inner hole of the clutch.
Further, the switching double clutch comprises a first clutch piece, a second clutch piece and a piston unit;
the piston unit comprises a double-end piston body and a cavity, the cross section of the double-end piston body is I-shaped, one end of the double-end piston body is arranged in the cavity, the other end of the double-end piston body is positioned outside the cavity, the oil outlet of the first oil guide channel is arranged on one side of the cavity, and the oil outlet of the second oil guide channel is arranged on the other side of the cavity;
the first clutch piece comprises a first friction piece group, the second clutch piece comprises a second friction piece group, the first friction piece group is located on one side of the other end of the double-end piston body, the second friction piece group is located on the other side of the other end of the double-end piston body, the first clutch piece and the second clutch piece are arranged on the gear pair, and the double-end piston body is used for driving one of the first friction piece group or the second friction piece group to be combined and the other friction piece group to be separated.
Furthermore, the input shaft oil path comprises a first conveying oil path and a second conveying oil path, an oil inlet of the first conveying oil path is communicated with one oil path of the double-hole oil path, an oil outlet of the first conveying oil path is communicated with the first oil guide path, an oil inlet of the second conveying oil path is communicated with the other oil path of the double-hole oil path, and an oil outlet of the second conveying oil path is communicated with the second oil guide path.
Further, a sealing ring is arranged on the input shaft on two sides of each oil inlet of the input shaft oil path.
Different from the prior art, the transmission of the technical scheme controls the gear shifting through the switching type double clutch, so that power can be output through the input shaft and the output shaft. And the switching type double clutch conveys hydraulic oil through the shell oil path, the input shaft oil path and the clutch oil path, so that the switching type double clutch performs clutch operation. The oil circuit structure is filled with hydraulic oil, so that the oil pressure balance in the piston cavity of the switching type double clutch can be broken only by adjusting a small amount of hydraulic oil, the switching type double clutch is driven to perform clutch operation, and the effect of quickly switching the clutch is achieved.
Drawings
Fig. 1 is a sectional view of a two-speed transmission having an oil passage structure according to an embodiment;
FIG. 2 is a block diagram of a two speed transmission having an oil path structure according to an exemplary embodiment;
FIG. 3 is a partial schematic view of a two speed transmission having an oil path structure according to an exemplary embodiment;
description of reference numerals:
10. an input shaft; 11. a first input gear; 12 a second input gear;
20. an output shaft; 21. a first output gear; 22 a second output gear;
30. an oil path structure; 31. a housing oil passage; 32. an input shaft oil path; 33 a clutch oil path;
311. a double-hole oil delivery path; 321. a first delivery oil path; 322. a second delivery oil path; 323. a seal ring;
341. a first oil guide passage; 342. a second oil guide passage;
40. a housing;
50. a switching type double clutch;
51. a first clutch block; 511. a first friction plate set;
52. a second clutch block; 521. a second friction plate set;
53. a piston unit; 531. a double-ended piston body; 532. a cavity;
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, fig. 2 and fig. 3, the present embodiment provides a two-gear transmission with an oil path structure, which includes an input shaft 10, an output shaft 20, a switching dual clutch 50, a housing 40 and an oil path structure 30. The central line of the input shaft 10 and the central line of the output shaft 20 are parallel to each other, the input shaft 10 and the output shaft 20 respectively penetrate through the shell and are arranged in the shell, and the input end of the input shaft protrudes out of the shell and can be connected with an engine. The output end of the output shaft protrudes out of the shell, and the output end of the output shaft and the first output gear or the second output gear are on the same axis and can be connected with wheels to drive the wheels to rotate. Shafts, gears, clutches, etc. within the transmission may be shielded by the housing 40.
The input shaft 10 is provided with a first input gear 11 and a second input gear 12, and the output shaft 20 is provided with a first output gear 21 and a second output gear in the present embodiment. The first input gear 11 and the first output gear 21 are intermeshed as a first gear set and the second input gear 12 and the second output gear 22 are intermeshed as a second gear set.
The switching double clutch is mounted on the input shaft 10 between the first input gear 11 and the second input gear 12, and performs mutually exclusive clutch operations on the first gear pair and the second gear pair. When the mutual exclusion is that the first gear pair is in a closed state, the second gear pair is in an open state; conversely, when the second gear pair is in the engaged state, the first gear pair is in the disengaged state. Therefore, two different routes of power transmission modes can be carried out on the first gear pair and the second gear pair through the switching type double clutch.
Specifically, the first route is as follows: the power of the input shaft 10 is transmitted to the output shaft 20 through the first gear pair; the corresponding second route is: the power of the input shaft 10 is transmitted to the output shaft 20 through the second gear pair; the effect of two kinds of gear change of two pairs of gears is achieved.
In the present embodiment, the switching dual clutch 50 includes a first clutch piece 51, a second clutch piece 52 and a piston unit 53, the piston unit includes a double-ended piston body 531 and a cavity 532, the cross section of the double-ended piston body 531 is i-shaped, and the double-ended piston body 531 is formed by combining three ring bodies, so that the double-ended piston body 531 is installed in the cavity 532, and hydraulic oil is input to control the double-ended piston body 531 to move in the cavity 532, thereby achieving the clutch operation in which one end of the switching dual clutch 50 is in a closed state and the other end thereof is in an open state.
The oil path structure in the present embodiment includes a housing oil path 31, an input shaft oil path 32, and a clutch oil path 33, the housing oil path 31 includes a double-hole delivery oil path 311, the clutch oil path 33 includes a first oil guide path 341 and a second oil guide path 342, and the input shaft oil path 32 includes a first delivery oil path 321 and a second delivery oil path 322. Specifically, hydraulic oil is injected into one side of the cavity 532 through the first oil guide passage 341, and meanwhile, hydraulic oil is also injected into the other side of the cavity 532 through the second oil guide passage 342, so that the pressures at the two ends of the double-headed piston body 531 in the cavity 532 are the same, and further the double-headed piston body 531 keeps balance in the cavity 532, and an initial preparation state is achieved.
In this embodiment, only one switching type dual clutch is provided on the input shaft 10, so that only two oil passages are needed to convey hydraulic oil respectively. When the switching type double clutch is subjected to clutch operation, hydraulic oil is input into the cavity 532 of the switching type double clutch through the housing oil passage 31, the input shaft oil passage 32 and the clutch oil passage 33, and then the hydraulic oil is conveyed.
Specifically, two oil passages are provided between the housing, the input shaft 10 and the switching double clutch 50. The double-hole oil delivery path 311 of the housing oil path 31 has two oil paths, the hydraulic oil is delivered to the input shaft 10 through the double-hole oil delivery path 311, the input shaft oil path 32 is delivered through the first oil delivery path 321 and the second oil delivery path 322, and is respectively connected to the two oil paths of the double-hole oil delivery path 311 in a conduction manner, the clutch oil path 33 is connected to the first oil delivery path 321 in a conduction manner through the first oil guide path 341, and the second oil guide path 342 is connected to the second oil delivery path 322 in a conduction manner, so that the hydraulic oil is delivered to two sides of the cavity 532, thereby achieving the purpose of delivering the hydraulic oil from the housing 40 to the switching type double clutch 50.
At the joint of the double-hole oil delivery path 311 of the housing oil path 31 and the input shaft oil path 32, two annular oil inlet grooves are formed in the input shaft 10 at the joint, and then the two sides of the oil inlet grooves are sealed by a sealing ring 323, that is, the sealing ring 323 is positioned between the housing and the input shaft 10 for sealing, and each double-hole oil delivery path 311 is in conduction connection with one oil inlet groove. The input shaft 10 is connected with the inner hole of the switching type dual clutch in an interference fit manner, and the input shaft oil path 32 is respectively communicated with the first oil guide passage 341 and the second oil guide passage 342 in a ring-shaped oil outlet groove manner, so that hydraulic oil is respectively conveyed to two sides of the cavity 532, and the purpose of controlling the double-headed piston body 531 to move in the cavity 532 through the oil pressure of the hydraulic oil is achieved.
In this embodiment, the first clutch piece is connected to the first input gear 11 of the input shaft 10, and the second clutch piece is connected to the second input gear 12, so that the switching dual clutch 50 can perform mutually exclusive clutch control on the first gear pair and the second gear pair of the input shaft 10. In this embodiment, taking the example that the first oil guiding passage 341 pushes the double-headed piston body 531 to move toward the second input gear 12 after the oil is taken, the second oil guiding passage 342 pushes the double-headed piston body 531 to move toward the first input gear 11 after the oil is taken.
And hydraulic oil pumps can be used for conveying the hydraulic oil in the oil tank to different pipelines in the oil circuit in the transmission. For example, when the first gear pair needs to be in the engaged state, the hydraulic oil is delivered through the other oil passage of the dual delivery oil passage 311, the second delivery oil passage 322 of the input shaft oil passage 32, and the second pilot oil passage 342, so that the double-headed piston body 531 of the switching double clutch moves toward the first gear pair. The double-end piston body 531 pushes the first friction plate group to perform combination friction, and power is transmitted from the input shaft 10 to the first output gear 21 through the first clutch block, so that the first gear pair is in a combined state, that is, the first input gear is meshed with the first output gear, and the power is transmitted from the input shaft 10 to the output shaft 20. And the second gear pair is separated from each other.
Similarly, when the second gear pair is in the closed state, the hydraulic oil is delivered through the routes of one oil passage of the dual-hole delivery oil passage 311, the first delivery oil passage 321 of the input shaft oil passage 32, and the first oil guide passage 341, so that the double-headed piston body 531 of the switching type dual clutch moves toward the second gear pair. The double-end piston body 531 pushes the second friction plate group to perform combination friction, and power is transmitted from the input shaft 10 to the second output gear 22 through the second clutch block, so that the second gear pair is in a combined state, that is, the second output gear 12 is meshed with the second input gear 22, and the power is transmitted from the input shaft 10 to the output shaft 20. At this time, the switching dual clutch 50 and the first gear pair are in a separated state.
Specifically, in this embodiment, the oil inlet of the first oil delivery path 321 is connected to one oil path of the dual-hole oil delivery path 311, the oil outlet of the first oil delivery path 321 is connected to the first oil guide path 341, the oil inlet of the second oil delivery path 322 is connected to the other oil path of the dual-hole oil delivery path, and the oil outlet of the second oil delivery path 322 is connected to the second oil guide path 342. Therefore, each switching clutch is provided with two oil conveying pipelines which are independent of each other and used for conveying hydraulic oil.
In the present embodiment, a seal ring 323 is provided on the input shaft 10 on both sides of each oil inlet of the input shaft oil path 32. That is, one seal ring 323 is provided on both sides of the oil inlet of the first oil delivery passage 321 and the oil inlet of the second oil delivery passage 322. If the first oil feed passage 321 and the second oil feed passage 322 are provided in parallel on the input shaft 10, a seal ring 323, an oil inlet of the first oil feed passage 321, a seal ring 323, and an oil inlet of the second oil feed passage 322 and a seal ring 323 may be provided in this order on the input shaft 10. The sealed connection between the shell oil path 31 and the input oil path is achieved, and the leakage of hydraulic oil is avoided. And on the input shaft 10 section at the oil outlet of the first conveying oil path 321 and the oil outlet of the second conveying oil path 322, the interference fit mode can be adopted to be matched with the inner hole of the clutch, so that the oil leakage between the input shaft oil path 32 and the clutch oil path 33 can be avoided, and the oil mixing between the oil conveying pipelines can be avoided.
The sealing ring 323 in the embodiment may be an open sealing ring 323, and has a high wear-resistant characteristic, so that the service life of the input shaft 10 can be ensured, and the maintenance cost of the transmission is reduced.
In this embodiment, the oil path structure of the transmission is filled with hydraulic oil, so that the oil pressure in the cavity 532 is unbalanced only after hydraulic oil is injected into the cavity 532 again, and the double-headed piston body 531 is driven to move in the cavity 532, and the first or second friction plate set is driven to be in friction combination by the double-headed piston body 531, thereby achieving the clutch effect. The preparation time for driving the double-head piston body 531 to move is zero, the effect of waiting for clutch switching when the time is zero is achieved, and the waiting time of the clutch structure during clutch switching is shortened.
In this embodiment, the first friction plate set 511 and the second friction plate set 521 are arranged in the same structure, and the components thereof may be a friction plate and a steel plate or a friction plate and a friction plate, and the friction plate and the steel plate are taken as an example in this embodiment for illustration. The friction plate is arranged on the clutch block, and the steel sheet is arranged on the outer side surface of the cavity 532; on the contrary, the friction plate can be arranged on the outer side surface of the cavity 532, and the steel sheet is arranged on the clutch block, so that the mutual contact friction effect between the friction plate and the steel sheet is formed, and the gear connected to the other end of the clutch block is subjected to clutch operation.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present patent.

Claims (6)

1. The utility model provides a keep off derailleur with oil circuit structure which characterized in that: the switching type double-clutch transmission comprises an input shaft, an output shaft, a switching type double clutch, a shell and an oil way structure;
the central line of the input shaft and the central line of the output shaft are arranged in parallel, the input end of the input shaft and the output end of the output shaft respectively penetrate through two opposite side walls of the shell and are arranged in the shell, the input end of the input shaft protrudes out of the shell, and the output end of the output shaft protrudes out of the shell;
the switching type double clutch is arranged on an input shaft, the input shaft is provided with a first input gear and a second input gear, the output shaft is provided with a first output gear and a second output gear, the first input gear and the first output gear are meshed with each other, the second input gear and the second output gear are meshed with each other, the switching type double clutch is positioned between the first input gear and the second input gear, and the switching type double clutch is used for controlling the first input gear or the second input gear and the input shaft to perform mutual exclusion clutch operation;
the oil circuit structure comprises a shell oil circuit, an input shaft oil circuit and a clutch oil circuit, wherein the shell oil circuit is arranged in the shell, the input shaft oil circuit is arranged in the input shaft, and the shell oil circuit is communicated with the input shaft oil circuit; the clutch oil circuit is arranged in the switching type double clutch, and the input shaft oil circuit is communicated with the clutch oil circuit.
2. The two-gear transmission with an oil path structure as claimed in claim 1, wherein the housing oil path is a dual-hole oil feeding path, an oil inlet of the dual-hole oil feeding path is disposed on an outer side surface of the housing, and an oil outlet of the dual-hole oil feeding path is disposed on an inner surface of a shaft hole of the housing input shaft.
3. The two-gear transmission with the oil path structure according to claim 2, wherein the clutch oil path includes a first oil guide passage and a second oil guide passage;
the first oil guide channel is arranged between one side of the piston inner cavity of the clutch and the inner side surface of the inner hole of the clutch, and the second oil guide channel is arranged between the other side of the piston inner cavity of the clutch and the inner side surface of the inner hole of the clutch.
4. The two-gear transmission having an oil path structure according to claim 3, wherein the switching double clutch includes a first clutch, a second clutch, and a piston unit;
the piston unit comprises a double-end piston body and a cavity, the cross section of the double-end piston body is I-shaped, one end of the double-end piston body is arranged in the cavity, the other end of the double-end piston body is positioned outside the cavity, the oil outlet of the first oil guide channel is arranged on one side of the cavity, and the oil outlet of the second oil guide channel is arranged on the other side of the cavity;
the first clutch piece comprises a first friction piece group, the second clutch piece comprises a second friction piece group, the first friction piece group is located on one side of the other end of the double-end piston body, the second friction piece group is located on the other side of the other end of the double-end piston body, the first clutch piece and the second clutch piece are arranged on the gear pair, and the double-end piston body is used for driving one of the first friction piece group or the second friction piece group to be combined and the other friction piece group to be separated.
5. The two-gear transmission with the oil path structure according to claim 3, wherein the input shaft oil path includes a first oil transmission path and a second oil transmission path, an oil inlet of the first oil transmission path is connected to one oil path of the two-hole oil path, an oil outlet of the first oil transmission path is connected to the first oil guide path, an oil inlet of the second oil transmission path is connected to the other oil path of the two-hole oil path, and an oil outlet of the second oil transmission path is connected to the second oil guide path.
6. The two-gear transmission with the oil circuit structure according to claim 1, wherein a sealing ring is provided on the input shaft on both sides of each oil inlet of the input shaft oil circuit.
CN201910833507.8A 2019-09-04 2019-09-04 Two keep off derailleur with oil circuit structure Pending CN111322358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910833507.8A CN111322358A (en) 2019-09-04 2019-09-04 Two keep off derailleur with oil circuit structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910833507.8A CN111322358A (en) 2019-09-04 2019-09-04 Two keep off derailleur with oil circuit structure

Publications (1)

Publication Number Publication Date
CN111322358A true CN111322358A (en) 2020-06-23

Family

ID=71172473

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910833507.8A Pending CN111322358A (en) 2019-09-04 2019-09-04 Two keep off derailleur with oil circuit structure

Country Status (1)

Country Link
CN (1) CN111322358A (en)

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