CN103574009B - A kind of stiff rod shifting system - Google Patents
A kind of stiff rod shifting system Download PDFInfo
- Publication number
- CN103574009B CN103574009B CN201310507235.5A CN201310507235A CN103574009B CN 103574009 B CN103574009 B CN 103574009B CN 201310507235 A CN201310507235 A CN 201310507235A CN 103574009 B CN103574009 B CN 103574009B
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- CN
- China
- Prior art keywords
- slide block
- gearshift
- pull bar
- block set
- rod assembly
- 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.)
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0213—Selector apparatus with sealing means, e.g. against entry of dust
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0208—Selector apparatus with means for suppression of vibrations or reduction of noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention provides a kind of stiff rod shifting system, comprise shift control assembly and gearshift rod assembly.Gearshift rod assembly is divided into leading portion gearshift pull bar and back segment gearshift pull bar, and the two is connected by damping device.Damping device comprises the slide block set being arranged on described leading portion gearshift tie rod end and the slide block being arranged on described back segment gearshift tie rod end.Slide block inserts in slide block set and is slidably matched with slide block set.Bottom slide block set, be provided with lining, be connected by damping spring bottom slide block set with between slide block insertion end.Have dust-proof cover at damping device overcoat, one end of dust-proof cover is stuck on slide block set by jump ring, and the other end is stuck in back segment gearshift tie rod end by jump ring.The vibrations that the present invention is subject to self by damping device cushion, and greatly reduce the number of times that gearbox in vehicle travel process is out of supply, improve travelling comfort and the reliability of driving.Release mechanism then can remove the locking device of flexible rod assembly easily, and structure is simple, safety and stability.
Description
Technical field
The invention belongs to heavy truck field, relate to a kind of shifting system, particularly a kind of stiff rod shifting system.
Background technique
Heavy truck extensively adopts stiff rod shifting system at present, this shifting system have handle light, long service life, maintenance cost are low, shifting advantage clearly.But the shifting operating device of this system is arranged on cab floor, operator cabin and vehicle frame are connected by suspending, and make operator cabin in vehicle travel process can relative to frame movement.When travelling on the poor road of road conditions, there will be shift handle shake and seriously even to shift gears phenomenon out of supply, so will have a strong impact on travelling comfort and reliability that car load drives.
Summary of the invention
The invention provides a kind of stiff rod shifting system, object reduces its vibrations be subject to, and greatly reduces the number of times that in vehicle travel process, gearbox is out of supply.
To achieve these goals, the technological scheme that the present invention takes is:
Described stiff rod shifting system, comprise shift control assembly and gearshift rod assembly, described gearshift rod assembly comprises shift gears pull bar and the back segment that is connected with speed changer of the leading portion be connected with described shift control assembly and to shift gears pull bar, and described leading portion gearshift pull bar and described back segment pull bar of shifting gears is connected by damping device.
Described damping device comprises the slide block set being arranged on described leading portion gearshift tie rod end and the slide block being arranged on described back segment gearshift tie rod end, described slide block inserts described slide block set and forms sliding pair, and described slide block set is connected with described slide block insertion end by damping spring.
The insertion end of described slide block is provided with through hole, the limited post stretched into through described through hole in described slide block is provided with bottom described slide block set, described limited post inserting end is provided with flange, and described flange is connected with described slide block insertion end by described damping spring with bottom described slide block set.
Described damping device overcoat has dust-proof cover.
The two ends of described dust-proof cover are fixed on described back segment gearshift tie rod end and described slide block set respectively by jump ring.
Described leading portion gearshift pull bar is flexible rod assembly; Described flexible rod assembly comprises the draw-in groove and clamping block that cooperatively interact, described clamping block and inverted cam are fixed in a rotating shaft, described rotating shaft is arranged on described flexible rod assembly front end, described flexible rod assembly front end is hinged with the releasing claw stirring described inverted cam, and described releasing claw and described shift control assembly lower end are fixed.
Adopt technique scheme, the vibrations be subject to self by damping device are cushioned, and greatly reduce the number of times that gearbox in vehicle travel process is out of supply, improve travelling comfort and the reliability of driving.Release mechanism then can remove the locking device of flexible rod assembly easily, has that structure is simple, cost is low, the advantage of safety and stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stiff rod shifting system of the present invention;
Fig. 2 is the structural representation of damping device in structure shown in Fig. 1;
Fig. 3 is the structural representation of release mechanism in structure shown in Fig. 1.
Being labeled as in figure:
1, shift control assembly; 2, release mechanism; 3, gearshift rod assembly; 4, damping device; 5, slide block; 6, damping spring; 7, leading portion gearshift pull bar; 8, slide block set; 9, lining; 10, jump ring; 11, dust-proof cover; 12, back segment gearshift pull bar; 13, releasing claw; 14, inverted cam.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technological scheme.
As shown in Figure 1 to Figure 3, the invention provides a kind of stiff rod shifting system, comprise shift control assembly 1 and gearshift rod assembly 3.Gearshift rod assembly 3 is divided into leading portion gearshift pull bar 7 and back segment gearshift pull bar 12, is connected between leading portion gearshift pull bar 7 and back segment gearshift pull bar 12 by damping device 4.Damping device 4 can absorb in running process the impact that rod assembly 3 of shifting gears is subject to, and reduces the probability that gearbox is out of supply.
Damping device 4 comprises the slide block set 8 being arranged on described leading portion gearshift pull bar 7 end and the slide block 5 being arranged on described back segment gearshift pull bar 12 end.Slide block 5 inserts in slide block set 8 and is slidably matched with slide block set 8, and slide block 5 matches with slide block set 8 internal via shape formation sliding pair, prevents the two from relatively rotating.Bottom slide block set 8, be provided with lining 9, be connected by damping spring 6 bottom slide block set 8 with between slide block 5 insertion end.Slide block 5 is hollow, and slide block 5 insertion end has through hole, is provided with via through holes and stretches into limited post in slide block 5 bottom slide block set 8.The inserting end that limited post stretches into slide block 5 is provided with a circle flange, is also connected by damping spring 6 between flange with slide block 5 insertion end.Have dust-proof cover 11 at damping device 4 overcoat, one end of dust-proof cover 11 is stuck on slide block set 8 by jump ring 10, and the other end is stuck in back segment gearshift pull bar 12 end by jump ring 10.Dust-proof cover 11 prevents dust foreign material from entering damping device 4.
For meeting the needs of cab of heavy truck upset, gearshift rod assembly 3 adopts flexible rod assembly.Be provided with in flexible rod assembly and control the flexible locking device of flexible rod assembly.Locking device comprises the draw-in groove be located at inside and outside flexible rod assembly on bar, and when flexible rod assembly shrinks completely, the draw-in groove on inside and outside bar coincides, and one to be stuck in draw-in groove with the clamping block of draw-in groove form fit and to realize lock function.Clamping block and inverted cam 14 are fixed in same rotating shaft, and this rotating shaft is arranged on flexible rod assembly front end, and is provided with Returnning spring.Inverted cam 14 is outside at flexible rod.Releasing claw 13 is hinged on flexible rod assembly front end by rotating shaft, can stir inverted cam 14 and rotate when releasing claw 13 rotates.Releasing claw 13 is fixed with the lower end of shift control assembly 1.Releasing claw 13 and moving cam 14 constitute a release mechanism 2.
When driver's cab turnover, shift control assembly 1 relative telescopic bar assembly rotates, and releasing claw 13 rotates thereupon to be stirred inverted cam 14 and rotate, and drives clamping block to deviate from from draw-in groove, realizes locking device unblock.Flexible rod assembly can stretch, and this release mechanism 2 structure is simple, reliable easy care.When flexible rod assembly shrinks completely, the draw-in groove on inside and outside bar coincides.Clamping block, under the effect of Returnning spring, is stuck in draw-in groove, again realizes locking.
Above by reference to the accompanying drawings to invention has been exemplary description; the concrete realization of obvious the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technological scheme is carried out; or directly apply to other occasions, all in protection scope of the present invention without improving.
Claims (5)
1. a stiff rod shifting system, comprise shift control assembly (1) and gearshift rod assembly (3), it is characterized in that: described gearshift rod assembly (3) comprises shift gears pull bar (7) and the back segment that is connected with speed changer of the leading portion be connected with described shift control assembly (1) and to shift gears pull bar (12), described leading portion gearshift pull bar (7) and described back segment pull bar (12) of shifting gears is connected by damping device (4); Described damping device (4) comprises the slide block set (8) being arranged on described leading portion gearshift pull bar (7) end and the slide block (5) being arranged on described back segment gearshift pull bar (12) end, described slide block (5) inserts described slide block set (8) and forms sliding pair, and described slide block set (8) is connected with described slide block (5) insertion end by damping spring (6).
2. a kind of stiff rod shifting system according to claim 1, it is characterized in that: the insertion end of described slide block (5) is provided with through hole, described slide block set (8) bottom is provided with the limited post stretched into through described through hole in described slide block (5), described limited post inserting end is provided with flange, and described flange is connected with described slide block (5) insertion end by described damping spring (6) with described slide block set (8) bottom.
3. a kind of stiff rod shifting system according to claim 2, is characterized in that: described damping device (4) overcoat has dust-proof cover (11).
4. a kind of stiff rod shifting system according to claim 3, is characterized in that: the two ends of described dust-proof cover (11) are fixed on described back segment gearshift pull bar (12) end and described slide block set (8) respectively by jump ring (10).
5. a kind of stiff rod shifting system according to any one of claim 1-4, is characterized in that: described leading portion gearshift pull bar (7) is flexible rod assembly; Described flexible rod assembly comprises the draw-in groove and clamping block that cooperatively interact, described clamping block and inverted cam (14) are fixed in a rotating shaft, described rotating shaft is arranged on described flexible rod assembly front end, described flexible rod assembly front end is hinged with the releasing claw (13) stirring described inverted cam (14), and described releasing claw (13) and described shift control assembly (1) lower end are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507235.5A CN103574009B (en) | 2013-10-24 | 2013-10-24 | A kind of stiff rod shifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507235.5A CN103574009B (en) | 2013-10-24 | 2013-10-24 | A kind of stiff rod shifting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103574009A CN103574009A (en) | 2014-02-12 |
| CN103574009B true CN103574009B (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310507235.5A Active CN103574009B (en) | 2013-10-24 | 2013-10-24 | A kind of stiff rod shifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103574009B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465348A (en) * | 2015-12-31 | 2016-04-06 | 芜湖佳景科技有限公司 | Gear-shifting operating mechanism for heavy truck transmission |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507980A (en) * | 1982-03-01 | 1985-04-02 | Nissan Motor Company, Limited | Low vibration-level remote control gearshift linkage for manual transmission |
| US4777839A (en) * | 1985-10-07 | 1988-10-18 | Saab-Scania Aktiebolag | Device for damping vibrations in a gear change mechanism for vehicles |
| CN101725699A (en) * | 2009-12-25 | 2010-06-09 | 奇瑞汽车股份有限公司 | Gear shift pulling cable damping mechanism |
| CN101992691A (en) * | 2009-08-18 | 2011-03-30 | 现代自动车株式会社 | Apparatus for reducing noise of shift cable |
| CN203189604U (en) * | 2013-04-10 | 2013-09-11 | 奇瑞汽车股份有限公司 | Gear shifting pulling wire damper |
-
2013
- 2013-10-24 CN CN201310507235.5A patent/CN103574009B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507980A (en) * | 1982-03-01 | 1985-04-02 | Nissan Motor Company, Limited | Low vibration-level remote control gearshift linkage for manual transmission |
| US4777839A (en) * | 1985-10-07 | 1988-10-18 | Saab-Scania Aktiebolag | Device for damping vibrations in a gear change mechanism for vehicles |
| CN101992691A (en) * | 2009-08-18 | 2011-03-30 | 现代自动车株式会社 | Apparatus for reducing noise of shift cable |
| CN101725699A (en) * | 2009-12-25 | 2010-06-09 | 奇瑞汽车股份有限公司 | Gear shift pulling cable damping mechanism |
| CN203189604U (en) * | 2013-04-10 | 2013-09-11 | 奇瑞汽车股份有限公司 | Gear shifting pulling wire damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103574009A (en) | 2014-02-12 |
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