CN-115556513-B - Steering axle and vehicle thereof

CN115556513BCN 115556513 BCN115556513 BCN 115556513BCN-115556513-B

Abstract

The invention discloses a steering bridge and a vehicle thereof, which comprise steering bridges, steering wheels symmetrically arranged on two sides of the steering bridge and provided with synchronous rotation, and electric cylinders arranged on the steering bridge and used for driving the steering wheels on one side to rotate and synchronously rotating the steering wheels on the other side in parallel, wherein the steering wheels on two sides are arranged on wheel frames, the wheel frames are rotatably arranged at two ends of the steering bridge through slewing bearings, and rotating main shafts penetrating through the slewing bearings and the steering bridge are arranged on the wheel frames. The invention discloses a single-acting connecting rod type electric cylinder which is used as power input, stable in power input and high in control precision, and adopts mechanical transmission mechanisms such as gears, screw rods and the like, so that the transmission precision is high, an operator can accurately control the start and stop positions of a steering wheel, and the steering precision is high.

Inventors

FANG ZIJIAN
HAN LONG
WANG TUNLI

Assignees

合肥搬易通科技发展有限公司

Dates

Publication Date: 20260505
Application Date: 20221102

Claims (3)

1. A steering axle is characterized by comprising A steering bridge (1); the steering wheels (2) are symmetrically arranged at two sides of the steering bridge (1) and synchronously rotate; the electric cylinder (3) is arranged on the steering bridge (1) and is used for driving the steering wheel (2) on one side to rotate and connecting the steering wheel on the other side to synchronously rotate; The steering wheels (2) on two sides are arranged on a wheel frame (4), the wheel frame (4) is rotatably arranged at two ends of a steering bridge (1) through a slewing bearing (5), a rotating main shaft (6) penetrating through the slewing bearing (5) and the steering bridge (1) is arranged on the wheel frame (4), a rotating driving disc (7) and a rotating driven disc (8) are respectively arranged at one end, extending to the surface of the steering bridge (1), of the rotating main shaft (6), the telescopic end of an electric cylinder (3) is connected with one end of the rotating driving disc (7), and the other end of the rotating driving disc (7) is connected with the rotating driven disc (8) through a steering connecting rod (9); The electric cylinder (3) comprises a tailstock (10), a motor (11) and a screw rod (12) are arranged on the tailstock (10) in parallel, a driving gear (13) is arranged on a main shaft of the motor (11), a driven gear (14) meshed with the driving gear (13) is arranged at one end of the screw rod (12) positioned inside the tailstock (10), an inner pushing screw rod (15) is connected with the screw rod (12) in a transmission mode, and one end, far away from the screw rod (12), of the inner pushing screw rod (15) is connected with a first connecting shaft (17) at one end of a rotary driving disc (7) in a rotating mode through a fixed earring (16); The wheel frame (4) comprises a wheel frame vertical plate (23) which is vertically arranged, the steering wheel (2) is arranged at the lower end of the wheel frame vertical plate (23) through a wheel shaft (25), and the upper end of the wheel frame vertical plate (23) is horizontally provided with a wheel frame top plate (24) which is connected with the slewing bearing (5) and the rotating main shaft (6); the steering wheel (2) adopts a double-wheel structure; The steering wheel (2) comprises a hub (26) arranged on a wheel shaft (25), a tire (27) is arranged on the hub (26), and a through type pressure oil cup (28) and a hub cover (29) are arranged at the end part of the wheel shaft (25).
2. The steering axle of claim 1, wherein one end of the steering connecting rod (9) is rotationally connected with a second connecting shaft (19) on the rotary driving disc (7) through a centripetal joint bearing (18), the other end of the steering connecting rod (9) is rotationally connected with the second connecting shaft (19) on the rotary driven disc (8) through a deep groove ball bearing (20), a limiting spacer (21) which is abutted against the centripetal joint bearing (18) and the deep groove ball bearing (20) is arranged on the second connecting shaft (19), and a dust cover (22) is arranged on one end, close to the limiting spacer (21), of the second connecting shaft (19).
3. A vehicle comprising a steering axle according to claim 1 to 2.

Description

Steering axle and vehicle thereof Technical Field The invention relates to the technical field of vehicle steering axle equipment, in particular to a steering axle and a vehicle thereof. Background CN208324769U discloses a steering axle for high-setting battery vehicle, comprising a steering axle body, left steering knuckle and right steering knuckle symmetrically arranged at two ends of the steering axle body, transverse hydraulic cylinder installed in the inner cavity of the steering axle body, and two steering connecting rods symmetrically arranged at two ends of the transverse hydraulic cylinder and respectively driving the left steering knuckle or the right steering knuckle to rotate. However, the hydraulic steering scheme still has the following defects that the hydraulic steering scheme is adopted, only one oil pump is generally arranged to supply oil, the high-flow and high-pressure lifting working condition, the low-flow and low-pressure steering working condition are required to be met, if the whole vehicle only needs to be steered, the oil pump is started to supply steering, a large amount of energy loss is easily caused, the long-distance pressure loss is caused by the arrangement of the steering oil pipes of the whole vehicle, the steering action is not stable enough, and the hydraulic impact and the like seriously influence the driving comfort of the vehicle. Disclosure of Invention The present invention is directed to a steering axle and a vehicle thereof, which solve the problems set forth in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: a steering axle comprises A steering bridge; steering wheels which are symmetrically arranged at two sides of the steering bridge and synchronously rotate; The electric cylinder is arranged on the steering bridge and used for driving the steering wheel on one side to rotate and connecting the steering wheel on the other side to synchronously rotate; The steering wheels on two sides are arranged on a wheel frame, the wheel frame is rotatably arranged at two ends of a steering bridge through a slewing bearing, a rotating main shaft penetrating through the slewing bearing and the steering bridge is arranged on the wheel frame, a rotating driving disc and a rotating driven disc are respectively arranged at one end of the rotating main shaft extending to the surface of the steering bridge, the telescopic end of an electric cylinder is connected with one end of the rotating driving disc, and the other end of the rotating driving disc is connected with the rotating driven disc through a steering connecting rod. Preferably, the electric cylinder comprises a tailstock, a motor and a screw rod are arranged on the tailstock in parallel, a driving gear is arranged on a main shaft of the motor, a driven gear meshed with the driving gear is arranged at one end of the screw rod positioned inside the tailstock, an inner pushing screw rod is connected with the screw rod in a transmission manner, and one end of the inner pushing screw rod, far away from the screw rod, is rotationally connected with a first connecting shaft at one end of a rotary driving disc through a fixed earring. Preferably, one end of the steering connecting rod is rotationally connected with a second connecting shaft on the rotary driving disc through a radial spherical bearing, the other end of the steering connecting rod is rotationally connected with a second connecting shaft on the rotary driven disc through a deep groove ball bearing, a limiting spacer which is abutted to the radial spherical bearing and the deep groove ball bearing is arranged on the second connecting shaft, and a dust cover is arranged at one end, close to the limiting spacer, of the second connecting shaft. Preferably, the wheel frame comprises a wheel frame vertical plate which is vertically arranged, the steering wheel is arranged at the lower end of the wheel frame vertical plate through a wheel shaft, and the upper end of the wheel frame vertical plate is horizontally provided with a wheel frame top plate which is connected with the slewing bearing and the rotating main shaft. Preferably, the steering wheel adopts a double-wheel structure. Preferably, the steering wheel comprises a hub arranged on a wheel shaft, a tire is arranged on the hub, and a through type pressure oil injection cup and a hub cover are arranged at the end part of the wheel shaft. The application also relates to a vehicle comprising the steering axle. Compared with the prior art, the invention has the beneficial effects that: The invention adopts the single-acting connecting rod type electric cylinder as power input, has stable power input and high control precision, adopts mechanical transmission mechanisms such as gears, screw rods and the like, has higher transmission precision, can ensure that operators can accurately control the start and stop positions of the steering whe