CN108533697A - Gear-shift mechanism - Google Patents
Gear-shift mechanism Download PDFInfo
- Publication number
- CN108533697A CN108533697A CN201810590373.7A CN201810590373A CN108533697A CN 108533697 A CN108533697 A CN 108533697A CN 201810590373 A CN201810590373 A CN 201810590373A CN 108533697 A CN108533697 A CN 108533697A
- Authority
- CN
- China
- Prior art keywords
- gear
- piece
- splines
- combination
- speed change
- 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.)
- Withdrawn
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Classifications
-
- 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
- F16H3/091—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 including a single countershaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention belongs to mechanic gear fields, and in particular to bicycle speed-varying unit.The present invention has the identical speed change combination of two nested structures, often there is one group of gear sheet to be in suspended state in the combination of set speed change, it is not contacted with gear shaft, when shift, the inside and outside axle sleeve for having spline can move between gear shaft and each gear sheet, clutch is served as, a certain plate gear and gear shaft is selected to engage and is rotated together.The present invention has many advantages, such as that compact-sized, speed change is easy, is safe and reliable, replacing and easy for installation.The present invention can also be used in automobile or other mechanical speed change occasions, as long as series is more than enough, so that it may to achieve the effect that electrodeless variable-speed.
Description
Technical field
The invention belongs to mechanic gear fields, and in particular to bicycle speed-varying unit.
Background technology
Currently, multi-speed bicycle, without independent, closed speed changer, speed changing function becomes between relying on two groups of multilayer gear wheels
It changes trains the realization of chain position, working environment is severe, lubrication is bad, unsuitable busy shift, high failure rate.
Invention content
The present invention in view of the shortcomings of the prior art, provide it is a kind of be suitble to use on bicycle it is small-sized, independent, closed more
Grade gear-shift mechanism.
The technical solution that the present invention solves above-mentioned technical problem is as follows：Gear-shift mechanism, including the combination of main transformer speed, secondary speed change
Combination) and shell, the combination of main transformer speed and secondary speed change combination are fixedly mounted within shell, in the combination of main transformer speed, interior external splines
Axle sleeve is sleeved on main shaft, and suspension gear piece is sleeved on inside and outside hub splines, between the piece and piece of suspension gear piece, outer lateral suspension tooth
It is supported with unilateral thrust radial ball bearing between wheel piece and shell；Inside and outside splined shaft is cased with inside and outside two kinds of splines, interior external splines
The internal spline of axle sleeve and the external splines of main shaft engage always, are cooperation between the two, the external splines of inside and outside hub splines and outstanding
The internal spline of floating gear sheet is that cooperation, inside and outside hub splines axially move between main shaft and suspension gear piece；Become shift
When position, inside and outside hub splines is pushed designated position, the external splines of inside and outside hub splines and selected monolithic suspension gear by shift fork
The internal spline of piece engages；Ordinary gear piece and mutual corresponding suspension gear piece remain meshing state, ordinary gear piece with
It is stationary fit between axis, public axis, the structure of secondary speed change combination and the combination of main transformer speed are combined in secondary speed change combination with main transformer speed
It is identical, public axis；Main shaft is consistent with the direction of rotation of countershaft.
The beneficial effects of the invention are as follows：Inventive structure is simple, and totally-enclosed design, which can fully meet lubrication needs and improve, to be become
The working environment of fast device, can quick and accurate speed change, installation or replace it is also very convenient.
Description of the drawings
Fig. 1 is；The structural schematic diagram of gear-shift mechanism,
Fig. 2 is；The schematic diagram of gear-shift mechanism main transformer speed combination 1,
Fig. 3 is；The schematic diagram of gear-shift mechanism suspension gear piece 1-1,
Fig. 4 is；The schematic diagram of hub splines 2 inside and outside gear-shift mechanism,
Fig. 5 is；The side view of gear-shift mechanism main transformer speed combination 1,
Fig. 6 is；The schematic diagram of gear-shift mechanism shift fork 6.
In figure：1, main transformer speed combines, and 2, inside and outside hub splines, 3, main shaft, 4, unilateral thrust radial ball bearing, 5, outer
Shell, 6, fork, 7, axis, 8, secondary speed change combination, 9, countershaft, (7-1,2,3,4), ordinary gear piece, (1-1,2,3,4) suspend
Gear sheet, (1-1,4), outside suspension gear piece.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Gear-shift mechanism, including the identical speed change combination of two nested structures, are referred to as the combination of main transformer speed and secondary speed change
Combination；
By taking the combination of main transformer speed as an example, it includes two kinds of gear sets；
One is ordinary gear groups, are made of multi-disc ordinary gear piece and axis, are stationary fits between them；Another
Suspension gear group, from ordinary gear piece equal amount suspension gear piece, inside and outside hub splines, main shaft, unilateral thrust to
Heart ball bearing and shift fork composition, unilateral thrust radial ball bearing support each suspension gear piece to suspend alone rotation, main shaft and respectively
There is sufficient space that inside and outside hub splines is allowed to axially move wherein between piece suspension gear piece, inside and outside hub splines can be according to need
Certain piece suspension gear piece and main shaft are meshed together, clutch is played the role of, shift fork can dial inside and outside hub splines
To designated position, it is kept into meshing state with corresponding a piece of suspension gear piece per a piece of ordinary gear piece, how many is right
How many gear sheet keep off speed change with regard to.
The public axis of two ordinary gear groups in two sets of speed change combinations of major-minor of the present invention, its gear number is two
The product of speed change combination gear number is covered, main shaft is identical with the direction of rotation of countershaft.
Fig. 1 is the structural schematic diagram of the present invention, and there are two part, main transformer speed combination 1 and secondary speed changes to combine 8 for the figure.
As shown in Figure 1, main transformer speed combination 1 is as the structure of secondary speed change combination 8, operation principle, only no-load voltage ratio is different.
The structure and operation principle of main transformer speed combination 1 are only stated herein.Main transformer speed combination 1 and secondary speed change combine 8 common shells 5 and axis
7。
As shown in Figures 2 and 3, main transformer speed combination 1 mainly by suspension gear piece (1-1,2,3,4), inside and outside hub splines 2,
3, five unilateral thrust radial ball bearings 4 of main shaft, ordinary gear piece (7-1,2,3,4) and axis 7 form.Inside and outside hub splines 2
It is sleeved on main shaft 3.Suspension gear piece (1-1,2,3,4) is sleeved on inside and outside hub splines 2.Suspension gear piece (1-1,2,3,4)
Between piece and piece, outside suspension gear piece (1-1,4) supports between shell 5 with unilateral thrust radial ball bearing 4.Suspension tooth
Wheel piece (1-1,2,3,4) have main shaft 3 between sufficient space allow inside and outside hub splines 2 main shaft 3 and suspension gear piece (1-1,2,
3,4) between axially move.
As shown in figure 4, the inside and outside of inside and outside hub splines 2 has spline.The internal spline of inside and outside hub splines 2 and main shaft 3
External splines always meshes together, and is cooperation between them.The external splines of inside and outside hub splines 2 can only be with monolithic suspension gear
The internal spline of piece (1-1,2,3,4) engages, and is also dynamic cooperation between them.
Referring to Fig. 5 and Fig. 6, when replacing gear, inside and outside hub splines 2 is pushed designated position, inside and outside hub splines by shift fork 6
The engagement of the internal spline of 2 external splines and specified monolithic suspension gear piece (1-1,2,3,4).Inside and outside hub splines 2 main shaft 3 with
Suspension gear piece plays the role of clutch between (1-1,2,3,4).
Referring to Fig. 1 and Fig. 2, ordinary gear piece (7-1,2,3,4) is stationary fit between axis 7.Ordinary gear piece (7-1,
2,3,4) and mutual corresponding suspension gear piece (1-1,2,3,4) remains pairs of meshing state.How many to gear sheet just
How many grade gear speed change.Because main transformer speed combination 1 and secondary speed change combine 8 public axis 7 in this gear-shift mechanism, this
The gear stages of gear-shift mechanism are the products that main transformer speed combination 1 and secondary speed change combine 8 gear stages.
Referring to Fig. 1, main transformer speed of the invention combination 1 and secondary speed change combine 8 and respectively use four pairs of gear sheets, therefore are 16 grades
Gear speed change.As long as increasing and decreasing the gear stages of logarithm, that is, changeable gear-shift mechanism of gear sheet.The rotation of main shaft 3 and countershaft 9
Direction is identical.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention.The present invention can also be used in
Automobile or other mechanical speed change occasions, as long as series is more than enough, so that it may to achieve the effect that electrodeless variable-speed.All spirit in the present invention
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (2)
1. gear-shift mechanism, including main transformer speed combination (1), secondary speed change combination (8) and shell (5), main transformer speed combines (1) and pair becomes
Speed combination (2) is fixedly mounted within shell (5), it is characterized in that in main transformer speed combines (1), inside and outside hub splines (2) is sleeved on
On main shaft (3), suspension gear piece (1-1,2,3,4) is sleeved on inside and outside hub splines (2), suspension gear piece (1-1,2,3,4)
It is supported with unilateral thrust radial ball bearing (4) between piece and piece, between outside suspension gear piece (1-1,4) and shell (5)；It is interior
External splines axle sleeve (2) has inside and outside two kinds of splines, the internal spline of inside and outside hub splines (2) and the external splines of main shaft (3) to engage always,
It is that cooperation, the external splines of inside and outside hub splines (2) and the internal spline of suspension gear piece (1-1,2,3,4) are to match between the two
It closes, inside and outside hub splines (2) axially moves between main shaft (3) and suspension gear piece (1-1,2,3,4)；When converting gear,
Inside and outside hub splines (2) is pushed designated position by shift fork (6), and the external splines of inside and outside hub splines (2) and selected monolithic suspend
The internal spline of gear sheet (1-1,2,3,4) engages；Ordinary gear piece (7-1,2,3,4) and mutual corresponding suspension gear piece (1-
1,2 it, 3,4) remains meshing state, is stationary fit between ordinary gear piece (7-1,2,3,4) and axis (7), secondary speed change group
It closes (8) and combines (1) public axis (7) with main transformer speed.
2. gear-shift mechanism according to claim 1, characterized in that the knot of secondary speed change combination (8) and main transformer speed combination (1)
Structure is identical, public axis (7)；Main shaft (3) is consistent with the direction of rotation of countershaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590373.7A CN108533697A (en) | 2018-06-09 | 2018-06-09 | Gear-shift mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590373.7A CN108533697A (en) | 2018-06-09 | 2018-06-09 | Gear-shift mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108533697A true CN108533697A (en) | 2018-09-14 |
Family
ID=63469716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810590373.7A Withdrawn CN108533697A (en) | 2018-06-09 | 2018-06-09 | Gear-shift mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533697A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481700A (en) * | 2019-08-04 | 2019-11-22 | 夏元峰 | Internal tooth wheel speed |
| CN113401274A (en) * | 2021-05-16 | 2021-09-17 | 蔡明� | Speed changing box in bicycle middle shaft |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH182861A (en) * | 1936-09-30 | 1936-02-29 | Hofer Albert | Change gears for bicycles. |
| DE19712444A1 (en) * | 1997-03-25 | 1998-10-01 | Gerhard Mueller | Gearchange system for bicycle |
| CN2565741Y (en) * | 2002-09-11 | 2003-08-13 | 田德生 | Speed-changing gear box for rickshaw |
| CN1568249A (en) * | 2001-08-22 | 2005-01-19 | 乔斯·米古尔·利布勒·波卡 | Mechanical speed-changing system for bicycles and similar vehicles |
| CN202219825U (en) * | 2011-07-22 | 2012-05-16 | 重庆广阔科技有限公司 | Three-wheeled motorcycle three-gear transmission |
| CN106080949A (en) * | 2016-07-06 | 2016-11-09 | 中山市峻国电器有限公司 | There is automatically controlled pair of gearshift mode bicycle middle shaft change speed gear box of line traffic control of many gear speed-changings |
| CN205854424U (en) * | 2016-07-06 | 2017-01-04 | 中山市峻国电器有限公司 | A kind of automatically controlled pair of gearshift mode bicycle middle shaft change speed gear box of line traffic control |
-
2018
- 2018-06-09 CN CN201810590373.7A patent/CN108533697A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH182861A (en) * | 1936-09-30 | 1936-02-29 | Hofer Albert | Change gears for bicycles. |
| DE19712444A1 (en) * | 1997-03-25 | 1998-10-01 | Gerhard Mueller | Gearchange system for bicycle |
| CN1568249A (en) * | 2001-08-22 | 2005-01-19 | 乔斯·米古尔·利布勒·波卡 | Mechanical speed-changing system for bicycles and similar vehicles |
| CN2565741Y (en) * | 2002-09-11 | 2003-08-13 | 田德生 | Speed-changing gear box for rickshaw |
| CN202219825U (en) * | 2011-07-22 | 2012-05-16 | 重庆广阔科技有限公司 | Three-wheeled motorcycle three-gear transmission |
| CN106080949A (en) * | 2016-07-06 | 2016-11-09 | 中山市峻国电器有限公司 | There is automatically controlled pair of gearshift mode bicycle middle shaft change speed gear box of line traffic control of many gear speed-changings |
| CN205854424U (en) * | 2016-07-06 | 2017-01-04 | 中山市峻国电器有限公司 | A kind of automatically controlled pair of gearshift mode bicycle middle shaft change speed gear box of line traffic control |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481700A (en) * | 2019-08-04 | 2019-11-22 | 夏元峰 | Internal tooth wheel speed |
| CN113401274A (en) * | 2021-05-16 | 2021-09-17 | 蔡明� | Speed changing box in bicycle middle shaft |
| CN113401274B (en) * | 2021-05-16 | 2023-08-08 | 佛山市顺德区智趣动电子商务有限公司 | Gear box in middle shaft of bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180914 |