A kind of bracing wire and speed-changer operation device
Technical field
The present invention relates to automotive field, particularly to a kind of bracing wire and speed-changer operation device.
Background technology
Bracing wire can realize the linkage between multiple rod member.Bracing wire is widely used on automobile, such as choosing/gear-shifting bracing wire, and it is the ingredient of speed-changer operation device, respectively connected the choosing/gear-shifting rocker arm of shifting handle and variator.Pilot control shifting handle, pulls choosing/gear-shifting rocker arm by choosing/gear-shifting bracing wire, changes current gear positions, and variator selects/shifts gears.
Existing choosing/gear-shifting bracing wire is by metal wire inner core and is wrapped in the tinsel crust of metal wire inner core outer surface and forms, and has gap between metal wire inner core and crust.Variator beats tooth sound when choosing/gearshift by produce high frequency, and this dozen of tooth acoustic energy are reached and are delivered in car by metal wire inner core and the crust of bracing wire, so that driver has the fidgets.Being typically at present to add mass in bracing wire crust local, the quality of mass can reduce the amplitude of bracing wire vibration, thus the bracing wire transmission that decays beat tooth sound.
During realizing the present invention, inventor finds that prior art at least there is problems in that in bracing wire entire length, the power of carrying varies in size, and affects the reliability of bracing wire after mass is added in bracing wire crust local.
Summary of the invention
In order to avoid the different impact on bracing wire reliability of bracing wire entire length stress, embodiments provide a kind of bracing wire and speed-changer operation device.Described technical scheme is as follows:
On the one hand, embodiments provide a kind of bracing wire, described bracing wire includes metal wire inner core and is wrapped in the tinsel crust of described metal wire inner core outer surface, gap is had between described metal wire inner core and described tinsel crust, described tinsel crust is the cylinder that many steel wires are constituted, and the outer surface of every described steel wire is rubber-coated and/or fills described rubber between every described steel wire.
Alternatively, described metal wire inner core includes the first metal wire layer, the second metal wire layer being set on described first metal wire layer, the first rubber filling layer being filled in described first metal wire layer and the second rubber filling layer being filled between described first metal wire layer and described second metal wire layer of annular, and described first metal wire layer and described second metal wire layer are made up of many described steel wires respectively.
Alternatively, every of described first metal wire layer described steel wire outer surface is rubber-coated.
Alternatively, the outer surface covered with nylon of described second metal wire layer or plastics.
Alternatively, the inner surface of described tinsel crust covers nylon.
Alternatively, the outer surface of described tinsel crust is coated with plastics, rubber or nylon.
Alternatively, described rubber includes butyl rubber, nitrile rubber, butadiene-styrene rubber, neoprene, silicone rubber, polyurethane rubber and EP rubbers.
On the other hand, embodiments provide a kind of speed-changer operation device, including shifting handle, gear-shifting bracing wire and variator, described gear-shifting bracing wire gear-shifting rocker arm with described shifting handle and described variator respectively is connected, and described gear-shifting bracing wire is aforementioned bracing wire.
Alternatively, described device also includes that support, described support are provided with the first draw-in groove, and described gear-shifting bracing wire is provided with the second draw-in groove matched with described first draw-in groove, is provided with rubber blanket between described first draw-in groove and described second draw-in groove.
Alternatively, described device also includes block selecting bracing wire, and described block selecting bracing wire block selecting rocking arm with described shifting handle and described variator respectively is connected.
The technical scheme that the embodiment of the present invention provides has the benefit that
By filled rubber between and/or every steel wire rubber-coated at the every steel wire outer surface of tinsel crust constituting bracing wire, when gearshift produce beat tooth sound along bracing wire crust steel wire transmission time, transmittance process receives the damping friction of the elastomeric material of bracing wire crust, weaken bracing wire owing to playing the vibration that tooth sound produces, the metal bump between each steel wire of outer Intradermal and friction can also be isolated while weakening vibration, make significant reduction in vibration, thus reduce be delivered in car beat tooth sound;And filled rubber between and/or every steel wire rubber-coated at every steel wire outer surface of the tinsel crust of bracing wire, bracing wire entire length uniform force, it is to avoid the different impact on bracing wire reliability of bracing wire entire length stress.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic cross-section of a kind of bracing wire that the embodiment of the present invention provides;
Fig. 2 is the schematic cross-section of a kind of bracing wire that the embodiment of the present invention provides;
Fig. 3 is the structural representation of a kind of speed-changer operation device that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of bracing wire that the embodiment of the present invention provides;
Fig. 5 is the structural representation of the support that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Embodiments providing a kind of bracing wire, see Fig. 1, this bracing wire includes metal wire inner core 11 and is wrapped in the tinsel crust 12 of metal wire inner core outer surface, has gap A between metal wire inner core 11 and tinsel crust 12.Tinsel crust 12 is the cylinder that many steel wires 13 are constituted, and filled rubber 12a between the outer surface of every steel wire 13 rubber-coated (not shown) and/or every steel wire 13.
It should be noted that between every steel wire 13 after filled rubber 12a, can be contact (as shown in Figure 1) between adjacent wires 13 in this cylinder, it is also possible to be contactless (i.e. rubber 12a is by completely separated for adjacent wires 13).
Alternatively, the inner surface of tinsel crust 12 can cover nylon 14, and the outer surface of tinsel crust 12 can be coated with plastics, rubber or nylon 15.
Operationally, tinsel crust 12 two ends can be separately fixed on two rod members, and the linkage of two rod members is transmitted pulling force by metal wire inner core 11 in this bracing wire.Metal wire inner core 11 can be movable in tinsel crust 12.
What deserves to be explained is, the embodiment of the present invention does not limit the structure of metal wire inner core 11.Seeing Fig. 1, in embodiments of the present invention, metal wire inner core 11 can be the cylinder that many steel wires 13 are constituted.In other embodiments, metal wire inner core 11 can be other structures.
The embodiment of the present invention is by filled rubber between and/or every steel wire rubber-coated at the every steel wire outer surface of tinsel crust constituting bracing wire, when gearshift produce beat tooth sound along bracing wire crust steel wire transmission time, transmittance process receives the damping friction of the elastomeric material of bracing wire crust, weaken bracing wire owing to playing the vibration that tooth sound produces, the metal bump between each steel wire of outer Intradermal and friction can also be isolated while weakening vibration, make significant reduction in vibration, thus reduce be delivered in car beat tooth sound;And filled rubber between and/or every steel wire rubber-coated at every steel wire outer surface of the tinsel crust of bracing wire, bracing wire entire length uniform force, it is to avoid the different impact on bracing wire reliability of bracing wire entire length stress.
Embodiment two
Embodiments providing a kind of bracing wire, see Fig. 2, this bracing wire includes metal wire inner core 21 and is wrapped in the tinsel crust 22 of metal wire inner core outer surface, has gap A between metal wire inner core 21 and tinsel crust 22.Tinsel crust 22 is the cylinder that many steel wires 23 are constituted, and filled rubber 22a between the outer surface of every steel wire 23 rubber-coated (not shown) and/or every steel wire 23.
Alternatively, metal wire inner core 21 includes the first metal wire layer 212, the second metal wire layer 214 being set on the first metal wire layer 212, the first rubber filling layer 211 being filled in the first metal wire layer 212 of annular and is filled in the second rubber filling layer 213 between the first metal wire layer 212 and the second metal wire layer 214.First metal wire layer 212 and the second metal wire layer 214 are made up of many steel wires 23 respectively.
Bracing wire is when beating tooth sound of transmission variator generation, beat tooth sound to transmit not only along the tinsel crust 22 of bracing wire, but also transmit along the metal wire inner core 21 of bracing wire, and also produce mutually collision and friction owing to beating tooth sound between each steel wire 23 in inner core 21, it is exaggerated further and beats tooth sound.By adding the first rubber filling layer 211 and the second rubber filling layer 213 in metal wire inner core 21, two rubber filling layers can weaken the vibration produced when tooth sound is beaten in inner core 21 transmission, 23 metal bumps of steel wire in inner core 21 and friction can also be isolated, avoid beating the amplification of tooth sound, thus reduce the internal car noise complaint brought when playing tooth sound and gearshift being delivered in car.
Alternatively, every steel wire 23 outer surface rubber-coated (not shown) of the first metal wire layer 212.In the first metal wire layer 212, every steel wire 23 outer surface is rubber-coated, adds rubber capacity in metal wire inner core 21 entire length, and what reduction was delivered in car further beats tooth sound.
Alternatively, the outer surface covered with nylon of the second metal wire layer 214 or plastics.Nylon and plastics have smooth texture, it is possible to reduce the friction between steel wire 23 outer surface and tinsel crust 22 inner surface in metal wire inner core 21.
Alternatively, the inner surface of tinsel crust 22 can be with covered with nylon 24, and the outer surface of tinsel crust 22 can be coated with plastics, rubber or nylon 25.Nylon 24 can reduce the friction in metal wire inner core 21 between steel wire 23 outer surface and tinsel crust 22 inner surface, and plastics, rubber or nylon 25 can produce protection, radioprotective, antioxidation and dustproof effect to tinsel crust 22.
Alternatively, can use can be with the maximum general purpose rubber of damped coefficient, such as butyl rubber and nitrile rubber, it is also possible to use the general purpose rubber that damped coefficient is bigger, such as butadiene-styrene rubber, neoprene, silicone rubber, polyurethane rubber and EP rubbers for rubber 22a.
The embodiment of the present invention is by filled rubber between and/or every steel wire rubber-coated at the every steel wire outer surface of tinsel crust constituting bracing wire, when gearshift produce beat tooth sound along bracing wire crust steel wire transmission time, transmittance process receives the damping friction of the elastomeric material of bracing wire crust, weaken bracing wire owing to playing the vibration that tooth sound produces, the metal bump between each steel wire of outer Intradermal and friction can also be isolated while weakening vibration, make significant reduction in vibration, thus reduce be delivered in car beat tooth sound;And filled rubber between and/or every steel wire rubber-coated at every steel wire outer surface of the tinsel crust of bracing wire, bracing wire entire length uniform force, it is to avoid the different impact on bracing wire reliability of bracing wire entire length stress.
Embodiment three
Embodiments providing a kind of speed-changer operation device, see Fig. 3, this device includes shifting handle 31, gear-shifting bracing wire 32 and variator 33, and gear-shifting bracing wire 32 gear-shifting rocker arm with shifting handle 31 and variator 33 respectively is connected.This gear-shifting bracing wire 32 can be the bracing wire described in embodiment one or two.
The embodiment of the present invention is by filled rubber between and/or every steel wire rubber-coated at the every steel wire outer surface of tinsel crust constituting bracing wire, when gearshift produce beat tooth sound along bracing wire crust steel wire transmission time, transmittance process receives the damping friction of the elastomeric material of bracing wire crust, weaken bracing wire owing to playing the vibration that tooth sound produces, the metal bump between each steel wire of outer Intradermal and friction can also be isolated while weakening vibration, make significant reduction in vibration, thus reduce be delivered in car beat tooth sound;And filled rubber between and/or every steel wire rubber-coated at every steel wire outer surface of the tinsel crust of bracing wire, bracing wire entire length uniform force, it is to avoid the different impact on bracing wire reliability of bracing wire entire length stress.
Embodiment four
Embodiments providing a kind of speed-changer operation device, including shifting handle, gear-shifting bracing wire and variator, gear-shifting bracing wire gear-shifting rocker arm with shifting handle and variator respectively is connected.Seeing Fig. 4, this gear-shifting bracing wire includes metal wire inner core 41 and is wrapped in the tinsel crust 42 of metal wire inner core 41 outer surface, has gap between metal wire inner core 41 and tinsel crust 42.Tinsel crust 42 is the cylinder that many steel wires are constituted, and the outer surface of every steel wire is rubber-coated and/or filled rubber (not shown) between every steel wire.
Specifically, Fig. 4 shows this gear-shifting bracing wire, and one end of gear-shifting bracing wire is connected with shifting handle by the first installing hole 43, and the other end of gear-shifting bracing wire is connected with the gear-shifting rocker arm of variator by the second installing hole 44.
Alternatively, can be with sheathed mass 45 on tinsel crust 42.
Alternatively, this device also includes support 40, and this support 40 is used for supporting gear-shifting bracing wire, and when gear-shifting bracing wire moves, carries out spacing to gear-shifting bracing wire.Fig. 5 shows this support 40, and this support 40 is provided with the first draw-in groove 401, and this gear-shifting bracing wire is arranged on support 40 by this first draw-in groove 401.Seeing Fig. 4, gear-shifting bracing wire is provided with between the second draw-in groove 46 matched with this first draw-in groove 401, and the first draw-in groove 401 and the second draw-in groove 46 and is provided with rubber blanket (not shown).
Alternatively, this device also includes block selecting bracing wire, and this block selecting bracing wire is connected with the block selecting rocking arm of shifting handle and variator respectively.
Specifically, this gear-shifting bracing wire and block selecting bracing wire can be the bracing wires that embodiment one or two describes.
The embodiment of the present invention is by filled rubber between and/or every steel wire rubber-coated at the every steel wire outer surface of tinsel crust constituting bracing wire, when gearshift produce beat tooth sound along bracing wire crust steel wire transmission time, transmittance process receives the damping friction of the elastomeric material of bracing wire crust, weaken bracing wire owing to playing the vibration that tooth sound produces, the metal bump between each steel wire of outer Intradermal and friction can also be isolated while weakening vibration, make significant reduction in vibration, thus reduce be delivered in car beat tooth sound;And filled rubber between and/or every steel wire rubber-coated at every steel wire outer surface of the tinsel crust of bracing wire, bracing wire entire length uniform force, it is to avoid the different impact on bracing wire reliability of bracing wire entire length stress.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.