A kind of structure that three kinds of steering patterns can be switched
Technical field
The utility model is related to a kind of steering structures, more specifically, more particularly to a kind of changeable three kinds of steering patterns
Structure.
Background technology
The steering structure of traditional tractor mainly pushes side arm to turn by the hydraulic cylinder being installed between side arm and vehicle frame
Always realize that turning, the steering of traditional automobile are mainly the steering of the steering ribbon electrical automobile of front axle hub, above single turns
It is limited to that angle of turn is too small to mode, rugged, road is narrow, means of transport is low by efficiency on curved anxious hill path, influences to produce
Efficiency.
Therefore, the knot for how providing a kind of big and practical steering of steering range constitutes urgent problem to be solved.
Utility model content
The purpose of this utility model is to provide it is a kind of can be switched three kinds of steering patterns structure, have it is simple in structure, if
Meter is reasonable, highly practical, it can be achieved that the characteristics of the steering of minor radius.
The technical solution of the utility model is as follows:
A kind of structure that three kinds of steering patterns can be switched, including side arm, vehicle frame and the forerunner's turn being located on the side arm
Xiang Qiao, the preceding driving steeraxle includes axle housing, further includes before be separately connected with the preceding driving steeraxle both ends two
Bridge wheel hub knuckle and the preceding bridge steering connector bar for connecting described two front axle hub knuckles, the axle housing and front axle hub
It is equipped with Front Axle Steering Mechanism between knuckle, side arm steering mechanism is equipped between the side arm and vehicle frame.
Further, the locking flanged plate of the side arm and vehicle frame can be fixed by being equipped between the side arm and vehicle frame.
Further, the Front Axle Steering Mechanism include can front axle hub knuckle described in telescopic drive turn to the
One hydraulic cylinder.
Further, the side arm steering mechanism include being capable of the second hydraulic oil for turning to of side arm described in telescopic drive
Cylinder.
Further, including one for control first hydraulic cylinder and the second hydraulic cylinder one of them it is flexible or
The reversal valve that the two is stretched jointly.
Further, the traction frame and axis of traction being hinged, the traction frame are equipped between the side arm and vehicle frame
It is arranged on side arm with one of both axis of traction, another is arranged on vehicle frame.
Further, the axle housing is equipped with flange ear, and the front axle hub knuckle is equipped with engaging lug, described
First hydraulic cylinder both ends are hinged with the flange ear and engaging lug respectively.
Further, the side arm be equipped with side arm bearing, the vehicle frame be equipped with frame support, described second
Hydraulic cylinder both ends are hinged with the side arm bearing and frame support respectively.
Compared with prior art, the utility model have the advantage that for:
1. a kind of structure that three kinds of steering patterns can be switched of the utility model, is turned to using Front Axle Steering Mechanism and side arm
The combination of mechanism, have the characteristics that simple structure and reasonable design, it is highly practical, can small radius steering, improve vehicle detour,
Narrow road passability;It can be improved using the automobile or tractor of a kind of structure that three kinds of steering patterns can be switched of the utility model
Pass through efficiency and stationarity in severe road conditions;
2. using the locking flanged plate that can fix the side arm and vehicle frame, side arm is locked when being not required to turn to larger for a long time
With the steering of vehicle frame, side arm steering lock flanged plate, strong applicability are laid down when realizing other two steering pattern;
3, the structure of changeable three kinds of steering patterns is controlled by reversal valve can realize following three kinds of steering modes:Preceding bridge turns
To;Side arm turns to;Front steering+side arm turns to;Therefore a kind of structure that three kinds of steering patterns can be switched of the utility model has
Reasonable design, operation feature flexible, easy to control;
4. the steering using steering hydraulic oil cylinder as Front Axle Steering Mechanism and side arm steering mechanism drives, there is structure letter
The characteristics of list, transmission efficiency.
Description of the drawings
It, below will be to implementing in order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art
Example or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, the accompanying drawings in the following description is only
Only it is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the installation diagram of the structure that three kinds of steering patterns can be switched of the utility model embodiment one;
Fig. 2 is the portions the A enlarged drawing of the utility model embodiment one.
Wherein:Bridge steering connector bar, 3- front axle hubs, 4- pressing plates, 5- front axle hubs knuckle, 6- methods before 1- side arms, 2-
Blue ear, the first hydraulic cylinders of 7-, 8- lockings flanged plate, the second hydraulic cylinders of 9-, 10- frame supports, 11- axle housings, 12- side arm branch
Seat, 13- traction frames, 14- axis of traction, 15- vehicle frames, 16- axle housings flange seat, 17- engaging lugs.
Specific implementation mode
With reference to embodiment, the technical solution of the utility model is described in further detail, but not structure
Any restrictions of pairs of the utility model.
Embodiment
Shown in refering to fig. 1~2, a kind of structure that three kinds of steering patterns can be switched, including side arm 1, vehicle frame 15 and before being located at
Preceding driving steeraxle on frame 1, preceding driving steeraxle includes axle housing 11, and preceding driving steeraxle is fixed on side arm 1 by pressing plate 4
On, further include two front axle hub knuckles 5 being separately connected with preceding driving steeraxle both ends and connect two front axle hubs turn
To the preceding bridge steering connector bar 2 of section 5, front axle hub knuckle 5 drives the steering of front axle hub 3, axle housing 11 to turn with front axle hub
To Front Axle Steering Mechanism is equipped between section 5, side arm steering mechanism is equipped between side arm 1 and vehicle frame 15.One kind of the utility model
The structure that three kinds of steering patterns can be switched, is turned to using the combination of Front Axle Steering Mechanism and side arm steering mechanism, has knot
Structure is simple, reasonable design, it is highly practical, can small radius steering the characteristics of, improve vehicle in detour, narrow road passability.
In the present embodiment, the locking flanged plate 8 that can fix side arm 1 and vehicle frame 15 is equipped between side arm 1 and vehicle frame 15.
Can be locked the steering of side arm 1 and vehicle frame 15 when being not required to turn to larger with locking flanged plate 8, only use the utility model
Front Axle Steering Mechanism, which is realized, to be turned to.
In the present embodiment, Front Axle Steering Mechanism includes capableing of the first hydraulic pressure of the steering of telescopic drive front axle hub knuckle 5
Oil cylinder 7;Side arm steering mechanism includes being capable of the second hydraulic cylinder 9 for turning to of side arm 1 described in telescopic drive.This structure passes through first
The flexible steering for respectively driving 1 part of front axle hub knuckle 5 and side arm of 9 push rod of hydraulic cylinder 7 and the second hydraulic cylinder.The
One hydraulic cylinder 7 be arranged it is preceding driving steeraxle wherein one or both ends, the second hydraulic cylinder 9 be arranged vehicle frame 15 wherein
One or both sides so that hydraulic oil pipe is flexible to can get larger steering moment.It is driven as steering using steering hydraulic oil cylinder,
It is easy to control with simple in structure, the characteristics of transmission efficiency.
In the present embodiment, flange ear 6 is installed on axle housing 11, more particularly flange ear 6 is mounted on the axle housing of axle housing 11
On flange seat 16, front axle hub knuckle 5 be equipped with engaging lug 17,7 both ends of the first hydraulic cylinder respectively with flange ear 6 and engaging lug
17 is hinged, wherein the cylinder of the first hydraulic cylinder 7 is hinged with flange ear 6, and push rod and the engaging lug 17 of the first hydraulic cylinder 7 are cut with scissors
It connects.Side arm 1 be equipped with side arm bearing 12, vehicle frame 15 be equipped with frame support 10,9 both ends of the second hydraulic cylinder respectively with side arm branch
Seat 12 and frame support 10 are hinged, wherein the cylinder of the second hydraulic cylinder 9 is hinged with frame support 10, the second hydraulic cylinder 9
Push rod is hinged with side arm bearing 12.
In the present embodiment, including one for control the first hydraulic cylinder 7 and the second hydraulic cylinder 9 one of them it is flexible or
The reversal valve that the two is stretched jointly.Reversal valve includes preceding bridge shelves, side arm shelves and preceding bridge+side arm shelves, and preceding bridge shelves control the preceding bridge
Steering mechanism turns to, and side arm shelves control the side arm steering mechanism and turn to, and steeraxle turning machine is driven before preceding bridge+side arm shelves control
Structure and side arm steering mechanism turn to.It is controlled by reversal valve, makes the structure that three kinds of steering patterns can be switched in this that can realize following three
Kind steering mode:Preceding bridge turns to;2, side arm turns to;3, preceding bridge steering+side arm turns to.
In the present embodiment, the traction frame 13 being hinged and axis of traction 14, traction frame 13 are equipped between side arm 1 and vehicle frame 15
It is arranged on side arm 1 with one of both axis of traction 14, another is arranged on vehicle frame 15, can be used as side arm steering
Fulcrum.
Above-described is only preferred embodiments of the present invention, it should be pointed out that those skilled in the art is come
Say, under the premise of not departing from the utility model structure, this can also be can be switched three kinds of steering patterns structure make it is several
Modification and improvement, these all do not interfere with the effect and patent practicability of the utility model implementation.