A kind of small rail car suspension
The present invention relates to a kind of small rail car suspension.
Because Motor Vehicles Development is too fast, cause energy scarcity, energy prices expensive, urban transportation
Increasingly congestion, urban environment decay, rail transit system by it is internationally recognized be the above-mentioned city of reply
The effective means of traffic problems.The serious city of traffic congestion in the world, it is either flourishing
Country or developing country all implement rail transit system one after another.
The track traffic mainly applied in existing rail transit system, such as train, subway,
It is mainly used in solving long-distance transportation or city long-distance transportation, construction period is long, cost is held high
It is expensive, it is mainly used in arterial traffic.Applicant proposes a kind of fast applied to the individual in regional extent
Fast rail system, for interior personal rapid transit at the regional level, if general set in orbit
Dry dolly, the passenger 1~2 that each dolly can carry, track can set it is a plurality of,
Switched tracks regardless of whether being related to, passenger is automatic without transfer, passenger's selection purpose website, dolly
Run to point of destination, realize personal rapid transit demand and track traffic facility with quickly
With reference to effective supplement of track traffic big over long distances now can be turned into.
The content of the invention
The present invention provides a kind of small rail car suspension, it is intended to makes the ride experience of small rail car
To realize object above, there is provided a kind of small rail car suspension, comprising small box body,
Two running gears, described two running gears set in orbit, described two running gears
Connected by ball link；The small box body hangs on described two by former and later two damping devices
Below individual running gear, former and later two described damping devices are one in the connection in carriage walking direction
Individual is to be fixedly connected with small box body, and another is that relative trolley box body-sliding connects.
Further, the damping device includes shell body, central shaft, spring, the center
It is arranged at after axle sheathed spring in shell body；One end of the spring abuts the evagination on central shaft
Go out portion, the other end abut shell body on inner bulge；During the center axis connection small box body,
The shell body connects running gear；Or during the center axis connection running gear, the shell
Body connects small box body.
Further, the shell body connection running gear, center axis connection small box body, institute
The lower end for stating shell body is provided with inner bulge, and the upper end of the central shaft is provided with outer protrusion
Further, the inner bulge is the edge that shell body lower end is inwardly collapsed；It is described outer
Protuberance is the steel ring or nut being fixedly connected with central shaft upper end.
Further, the central shaft lower end sets connecting shaft, and the connection shaft end is chou
Structure, the centrally disposed connecting hole for being used to fix small box body of the spherical structure, the damping device
Connecting hole in set copper ring.
Further, also it is connected comprising connecting pin, the connecting pin through copper ring with small box body；
The connecting hole front and rear sides of damping device set pad afterwards, and connecting pin is passed through on rear damping device
Connecting hole and the pad of both sides are connected with small box body.
Further, the upper end of the shell body sets outward flange, and the outward flange is used to fix
Further, elastic ring is set in the shell body, and the elastic ring is positioned close to outer
The upper end of housing or the position of lower end, and with the end abutment of spring, the internal diameter of the elastic ring
Suitable with the external diameter of central shaft, the external diameter of elastic ring is suitable with the internal diameter of shell body.
The small rail car suspension that the present invention realizes, by being set between running gear and dolly
Specific damping device is put, it is more comfortable when not only making seating, the lateral vibrations of dolly are also reduced,
It is very good to the lifting motor life-span.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is damping device entirety schematic perspective view of the present invention；
Fig. 3 is damping device sectional view of the present invention；
Fig. 4 is damping device explosive view of the present invention；
Fig. 5 is the local connection diagram of front damping device of the present invention and dolly；
Fig. 6 is the local connection diagram of damping device and dolly after the present invention
In order to be apparent from the implementation process of the present invention and implementation result, below with reference to accompanying drawing
The present invention will be described in detail.
A kind of small rail car suspension, as shown in figure 1, including small box body 100, walking
Device 200 and running gear 300, running gear 200 is identical with the structure of running gear 300,
Connected by ball link 400.The body of small railway carriage 100 is hung by former and later two damping devices
In the lower section of the running gear 200,300, the running gear sets in orbit；Institute
1-2 passenger can be accommodated by stating small box body, be connected by sus-pension with the running gear.
Running gear walking is in orbit, and the track is narrow many micro- for traditional rail
Rail, track are suspended on ground by bridge joint mode and set.Former and later two described damping devices with
In the connection in carriage walking direction, one is fixedly connected with small box body, another and small railway carriage
Body phase is to being slidably connected.It is described to connect running gear, ball link, former and later two dampings by front and rear
The suspension of device and dolly composition, dolly is set to have certain caching adjustment in fore-and-aft direction
Space, during crooked-running or speed adjust, dolly can keep certain steady.
Specifically, as shown in Fig. 2 the damping device includes shell body 1, central shaft 2,
Shell body 1 is enclosed on the outside of central shaft 2；As shown in Figure 3 and Figure 4, also comprising spring 4, institute
State sheathed spring 4 on central shaft 2 and be arranged in the shell body 1, the one of the spring 4
End abuts the outside bulge 6 on central shaft 2, the inner bulge 11 on other end abutting shell body,
When 4 forced compression of spring, central shaft 2 moves down relative to shell body 1, when spring is released
When bleeding off pressure power, central shaft 2 moves up relative to shell body 1.
The shell body 1 is respectively used to be connected small box body or walking mechanism with central shaft 2,
When the center axis connection small box body, the shell body connects running gear；It is optional another
A kind of connected mode, when central shaft connects running gear, the shell body connects small box body.
In the present embodiment, shell body 1 connects running gear, and central shaft 2 connects small box body,
The lower end setting inner bulge 11 of the shell body 1, the upper end setting of the central shaft 2 are outer
Protuberance 6, the inner bulge 11 are the edge that the lower end of shell body 2 is inwardly collapsed；It is described
Outside bulge 6 is the steel ring or nut being fixedly connected with the upper end of central shaft 2.Spring 4 is set
Between inner bulge 11 and outside bulge 6, the lower section of central shaft 2 sets spacing preiection 21,
The ultimate range moved up for limiting central shaft 2 relative to shell body 1.
In order that the dolly is in the process of walking, central shaft 2 keeps concentric with shell body 1,
The life-span of central shaft and the life-span of motor are protected, elastic ring 5, bullet are set in the shell body
Property ring 5 internal diameter it is suitable with the external diameter of central shaft 2, the external diameter of elastic ring 5 and shell body 1
Internal diameter is suitable.The elastic ring is optionally rubber ring.The elastic ring 5 is at least one,
Can be two or more, in the present embodiment, elastic ring 5 is provided with 2, sets respectively
In the position of the top and bottom of close shell body, and abutted with the both ends of spring 4, elastic ring
5 absorb lateral vibration, improve the comfortableness of seating, right when railway carriage is by side force
The lateral shearing force of suspended axle is reduced, and improves the intensity of central shaft.
In order that central shaft 2 is connected with the top of small box body 100, the lower end of central shaft 2 is set
Connecting shaft 3 is put, as shown in Fig. 2 and Fig. 3 and Fig. 4, connecting hole, institute are set in connecting shaft 3
State and be connected in connecting hole through connecting pins with the corresponding intrument in small box body.
Specifically, as shown in Figure 5 and Figure 6, structure belongs to front damping device shown in Fig. 5
A part, structure shown in Fig. 6 are a part for rear damping device, the company on damping device 600
The lower end of spindle 3 is a spherical structure, spherical structure central hole, and including setting copper ring 8, is easy to
Pin connection.Wherein front damping device and rear damping device is relativeness, for wherein shown in figure
A kind of position sets relation.The connecting shaft 3 of front damping device passes through with small box body 100 to be connected
Pin connection, connecting shaft 3 are the relation that is slidably connected with small box body, i.e. small box body can be relative
It is movable in connecting shaft 3.The connecting shaft 3 of damping device and small box body 100 are fixation afterwards
Connection, i.e., the connecting hole front and rear sides of rear damping device set pad 7, and connecting pin subtracts after passing through
The connecting hole on device and the pad 7 of both sides are shaken, makes the connection of connecting pin and rear damping device
Hole site is fixed.Front-and-back damping one is fixedly connected with one and is slidably connected, and can avoid small
Car produces excessive rock during negotiation of bends, speedup, Reduced Speed Now.
In order that shell body 1 and running gear fixed-link, the upper end setting of the shell body is outer
Flange, for the corresponding intrument clamping on running gear.
The small rail car suspension that the present invention realizes, by damping device connect small box body with
Walking mechanism, during making carriage walking, damping device absorbs the vibration of above-below direction, effectively
Improve ride quality.
Above by reference to the preferred embodiments of the present invention have been illustrated, not thereby limit to the power of the present invention
Sharp scope.Those skilled in the art do not depart from any repairing of being made in the scope of the present invention and essence
Change, equivalent substitution and improvement, all should be within the interest field of the present invention.