CN217456100U

CN217456100U - Steering trapezoid device with centering locking function

Info

Publication number: CN217456100U
Application number: CN202221437698.XU
Authority: CN
Inventors: 贾超; 田敏
Original assignee: Shanxi Saitan Defense Technology Co ltd
Current assignee: Shanxi Saitan Defense Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-20
Anticipated expiration: 2032-06-10

Abstract

The utility model belongs to the technical field of automobile design, especially, have trapezoidal device that turns to with centering locking, including two knuckle arms, all be connected with the tie rod on two knuckle arms, all be connected with the steering rocker arm on two tie rods, the stand that turns to is all installed to the bottom of two steering rocker arms, is connected with same middle pull rod that turns to and turns to trapezoidal mechanism locking device one between two steering rocker arms, turn to trapezoidal mechanism locking device one and include the body of rod and be located the first and second connector of the body of rod both ends, connect and install respectively on two steering rocker arms with second connector. The utility model discloses a turn to trapezoidal mechanism locking means can effectively solve and turn to trapezoidal mechanism locking problem.

Description

Steering trapezoid device with centering locking function

Technical Field

The utility model relates to an automobile design technical field especially relates to a have trapezoidal device that turns to that has centering locking.

Background

For heavy special vehicles, unmanned vehicles and the like, in order to meet the requirements in some scenes, a vehicle steering trapezoidal mechanism needs to be locked, so that the automobile can not realize the steering function temporarily. 2 exemplary scenarios are introduced as follows.

Scene one: heavy special vehicles, such as all-terrain cranes and military transport vehicles, have multiple steering modes including all-wheel steering, rear-wheel steering, crab steering, etc., in order to improve the steering throughput. When a part of a steering system of the vehicle is in failure and the steering of the failed wheel cannot be controlled, the vehicle cannot continue to run safely. In order to ensure that the vehicle continues to run safely, the fault steering trapezoid mechanism needs to be locked.

Scene two: the maximum running speed of the unmanned vehicle, especially a heavy unmanned vehicle, is generally lower than 60Km/h, and the unmanned vehicle cannot carry out remote high-speed maneuvering by the unmanned vehicle, so that the use of the unmanned vehicle is limited. When long-distance high-speed maneuvering is needed or the vehicle cannot run due to faults, the flat-plate transport vehicle cannot carry out conventional transportation due to the fact that the self weight is too heavy and the overall dimension is too high and exceeds the limit. In order to meet the requirements of dragging in the case of long-distance high-speed motor transportation and faults, the unmanned vehicle needs to be dragged by the tractor, and the steering trapezoid mechanism needs to be locked in order to ensure the safety of driving.

At present, the steering systems of most heavy special vehicles and unmanned vehicles cannot be locked after being powered off, and when long-distance high-speed maneuvering is needed or the vehicles cannot run due to faults, a whole vehicle flat rescue transportation scheme is often adopted, so that the cost is high, and the operation difficulty is high.

Some heavy special vehicles adopt a mode of centering an oil cylinder and an energy accumulator to lock a steering trapezoidal mechanism, and the mode requires that the energy accumulator has high-pressure oil, so that the pressure of the energy accumulator is reduced after the vehicle is placed for a long time, or a steering hydraulic system fails, and a steering system cannot be locked. Moreover, the locking mode is only suitable for the vehicle type of the hydraulic power steering system.

Some unmanned vehicles adopting electric power assistance are provided with brakes at the output ends of the motors, so that the steering system cannot be locked when a control system fails or the whole vehicle is powered off. Moreover, this locking method is only suitable for the vehicle type of the electric power steering system.

In some vehicles, a new mechanical limiting device is added on a steering trapezoid mechanism, the mechanical limiting device is positioned between an axle and the steering trapezoid mechanism or between a frame and the steering trapezoid mechanism, so that the frame is stressed greatly, a gap exists between the steering trapezoid mechanism and the limiting device, and the limiting locking device is unreliable in work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a steering trapezoid device with a centering locking function.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a turn to trapezoidal device with centering locking, includes two knuckle arms, all is connected with the tie rod on two knuckle arms, all is connected with the steering rocker arm on two steering rocker arms, and the steering column is all installed to the bottom of two steering rocker arms, is connected with same middle pull rod that turns to and turns to trapezoidal mechanism locking device one between two steering rocker arms, turn to trapezoidal mechanism locking device one and include the body of rod and be located the body of rod both ends connect first and connect second, connect first and connect second and install respectively on two steering rocker arms.

Preferably, the body of rod includes left body of rod and right body of rod, through interior external screw thread connection between left body of rod and the right body of rod.

Preferably, the external threads of the left rod body and the right rod body are sleeved with locking nuts.

Preferably, the first connecting joint and the second connecting joint are both provided with bolt holes, bolt nuts are installed in the bolt holes, and the bolt nuts are installed on the steering rocker arm.

Preferably, the first connecting joint and the second connecting joint are welded on the rod body.

In the utility model, the steering trapezoid device with centering locking is designed to be a pure mechanical structure, and is not affected by system faults, so that the operation is reliable and effective;

the locking device of the steering trapezoidal mechanism is arranged in the same plane of the trapezoidal mechanism and is used for mounting and connecting elements of the trapezoidal mechanism, so that the structure is simple and the arrangement is convenient to realize;

the locking device for the steering trapezoid mechanism is provided with the length adjusting device, so that the locking of the steering trapezoid mechanism without a gap can be realized, and the locking device is stable and reliable in work;

to sum up, the trapezoidal mechanism locking means that turns to of this application design can effectively solve and turn to trapezoidal mechanism locking problem.

Drawings

FIG. 1 is a schematic view of a locking device of a disconnected double-rocker steering trapezoid mechanism provided by the utility model;

fig. 2 is a schematic view of the locking device of the integral steering trapezoid mechanism provided by the present invention;

fig. 3 is a schematic view of a locking device of a steering trapezoid mechanism provided by the present invention;

fig. 4 is a schematic view of the steering trapezoid mechanism locking device provided by the utility model.

In the figure: 1-knuckle arm, 2-tie rod, 3-rocker arm, 4-steering column, 5-middle tie rod, 6-first steering ladder lock, 7-trapezoid arm, 8-steering tie rod, 9-second steering ladder lock, 10-left rod, 11-right rod, 12-first joint, 13-second joint, 14-lock nut, 15-ball pin, 16-rod, 17-lock clamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1 and 3, a steering trapezoid device with centering locking comprises two steering knuckle arms 1, two steering knuckle arms 1 are connected with two tie rods 2, two tie rods 2 are connected with steering rocker arms 3, steering columns 4 are installed at the bottoms of the two steering rocker arms 3, a same middle tie rod 5 and a steering trapezoid mechanism locking device 6 are connected between the two steering rocker arms 3, the steering trapezoid mechanism locking device 6 comprises a rod body, a first connecting joint 12 and a second connecting joint 13, the first connecting joint 12 and the second connecting joint 13 are located at two ends of the rod body, and the first connecting joint 12 and the second connecting joint 13 are installed on the two steering rocker arms 3 respectively.

The utility model discloses in, the body of rod includes left body of rod 10 and right body of rod 11, through interior external thread connection between left body of rod 10 and the right body of rod 11.

The utility model discloses in, the lock nut 14 has been cup jointed on the external screw thread of the left side body of rod 10 and the right side body of rod 11.

The utility model discloses in, all seted up the bolt hole on joint one 12 and the joint two 13, the downthehole bolt nut that installs of bolt hole, bolt nut installs on turning to rocking arm 3.

In the utility model, the first connecting joint 12 and the second connecting joint 13 are welded on the rod body.

Example two

Referring to fig. 2 and 4, the steering trapezoid device with centering locking comprises two steering knuckle arms 1, two steering knuckle arms 1 are connected with two tie rods 2, two tie rods 2 are connected with steering rocker arms 3, steering columns 4 are installed at the bottoms of the two steering rocker arms 3, the same steering tie rod 8 and a steering trapezoid mechanism locking device II 9 are connected between the two steering rocker arms 3, the steering trapezoid mechanism locking device II 9 comprises a rod body 16 and ball pins 15 located at two ends of the rod body 16, and the two ball pins 15 are installed on the two steering rocker arms 3 respectively.

The utility model discloses in, all cup jointed locking clamp 17 on the body of rod 16 both ends.

In the utility model, the two ends of the rod body 16 are provided with threads, and the ball head pin 15 is arranged on the rod body 16 in a threaded manner.

The utility model discloses in, car turns to trapezoidal device, the essence is a set of four-bar linkage or many link mechanism, generally comprises parts such as knuckle arm, steering linkage, steering rocker arm, turns to trapezoidal arm, and its effect is that left and right wheels rotate an angle according to certain proportion when guaranteeing to turn to, and the degree of freedom when turning to trapezoidal mechanism normal state is 1, through applying a drive to rocker arm or other parts, thereby makes left and right wheels deflect; the application designs a turn to trapezoidal mechanism locking device, in essence through increase a atress component and exert a motion constraint between the trapezoidal mechanism component that turns to, this constraint makes the degree of freedom that turns to trapezoidal mechanism be 0, turns to trapezoidal mechanism this moment and is locked, and the wheel no longer rotates.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a have and turn to trapezoidal device with centering locking, its characterized in that, includes two knuckle arms (1), all is connected with tie rod (2) on two knuckle arms (1), all is connected with on two tie rod (2) and turns to rocking arm (3), turns to stand (4) all installed to the bottom of two rocking arm (3), turns to and is connected with same middle pull rod (5) that turns to and turns to trapezoidal mechanism locking means (6) between two rocking arm (3), turn to trapezoidal mechanism locking means (6) including the body of rod and be located the body of rod both ends connect first (12) and connect second (13), connect first (12) and connect second (13) install respectively on two rocking arms (3) that turn to.

2. A device with centering locking according to claim 1, characterized in that said rods comprise a left rod (10) and a right rod (11), said left rod (10) and said right rod (11) being connected by means of internal and external threads.

3. A bogie ladder with centering and locking function as claimed in claim 2, wherein said left (10) and right (11) rods are externally threaded with locking nuts (14).

4. A trapezoid steering device with centering and locking functions as claimed in claim 1, wherein the first connecting joint (12) and the second connecting joint (13) are provided with bolt holes, and bolt nuts are arranged in the bolt holes and are arranged on the steering rocker arm (3).

5. A bogie ladder device with centering locking as claimed in claim 1 wherein the first connector (12) and the second connector (13) are welded to the rod.