阅读说明：本技术 一种电动防爆客货车两用转向桥 (Electric explosion-proof steering axle for passenger and freight vehicles ) 是由 沈四海 于 2021-08-10 设计创作，主要内容包括：本发明公开了一种电动防爆客货车两用转向桥,转向桥为横拉杆同步转向结构,包括转向桥体、转向节总成、端轴、轮毂总成、横拉杆,转向节总成设置有两个并均通过端轴连接在转向桥体两端,轮毂总成设置有两个且分别安装在两转向节总成上,横拉杆两端均通过球销分别与两转向节总成固定。本发明电动防爆客货车两用转向桥,结构紧凑,重量轻强度高,具有防爆节能,加工精度要求低,大幅度提升产品的可靠性和耐久性,降低了漏油和转向失效风险,防范安全风险,提高了产品品质和劳动效率,具有较强的实用性。(The invention discloses an electric explosion-proof passenger and truck dual-purpose steering axle which is of a tie rod synchronous steering structure and comprises a steering axle body, steering knuckle assemblies, end shafts, wheel hub assemblies and tie rods, wherein two steering knuckle assemblies are arranged and are connected to two ends of the steering axle body through the end shafts, two wheel hub assemblies are arranged and are respectively installed on the two steering knuckle assemblies, and two ends of the tie rod are respectively fixed with the two steering knuckle assemblies through ball pins. The electric anti-explosion passenger and truck dual-purpose steering axle has the advantages of compact structure, light weight, high strength, explosion prevention, energy conservation, low requirement on processing precision, great improvement on the reliability and durability of products, reduction in oil leakage and steering failure risks, prevention of safety risks, improvement on the product quality and labor efficiency, and strong practicability.)

1. The utility model provides an electronic explosion-proof passenger-cargo vehicle dual-purpose steering axle, its characterized in that, steering axle is drag link synchronous steering structure, including steering axle body (1), knuckle assembly (2), end shaft (3), wheel hub assembly (4), drag link (5), knuckle assembly (2) are provided with two and all connect at steering axle body (1) both ends through end shaft (3), wheel hub assembly (4) are provided with two and install respectively on two knuckle assemblies (2), drag link (5) both ends are all fixed with two knuckle assemblies (2) respectively through ball round pin (51).

2. The electric explosion-proof dual-purpose steering axle for passenger and freight vehicles as claimed in claim 1, wherein the steering knuckle assembly (2) comprises a steering knuckle bracket (21), a main pin (22) and a steering arm (23), the end shaft (3) is fixed in the steering knuckle bracket (21) through the main pin (22), one end of the steering arm (23) is fixed on the steering knuckle bracket (21), and the other end is connected with the tie rod (5) through a ball pin (51).

3. The electric explosion-proof dual-purpose steering axle for the passenger and freight vehicles is characterized in that the steering knuckle support (21) consists of a front-end ']' shaped support and a rear-end steering knuckle shaft, one end of the end shaft (3) is fixed with the tail end of the steering axle body (1), the other end of the end shaft is provided with a cylindrical shaft sleeve (31), the cylindrical shaft sleeve (31) of the end shaft (3) is fixed in the ']' shaped support through a main pin (22), and the hub assembly (4) is installed on the steering knuckle shaft.

4. The electric explosion-proof passenger-truck dual-purpose steering axle is characterized in that main pin mounting holes are formed in support arms at two ends of the "]" type support, outer walls of two ends of the main pin (22) are respectively mounted in the two main pin mounting holes of the "]" type support through tapered roller bearings (24), sealing ring seats are arranged between the cylindrical shaft sleeve (31) and the tapered roller bearings (24) on the outer side of the main pin (22), rotary bearing sealing rings (25) are arranged between the sealing ring seats and the inner walls of the main pin mounting holes, and O-shaped sealing rings (26) are arranged between the sealing ring seats and the cylindrical shaft sleeve (31).

5. The electric explosion-proof passenger-truck dual-purpose steering axle as claimed in claim 4, characterized in that the outside of the main pin mounting hole on the two end arms of the "]" type bracket is provided with a main pin cover plate (27), and the two main pin cover plates (27) are respectively and fixedly arranged at the two ends of the main pin (22).

6. The electric explosion-proof passenger-cargo vehicle dual-purpose steering axle of claim 3, characterized in that, the hub assembly (4) comprises a brake (41), a brake base plate (42), a hub bolt (43) and a hub cover (44), the brake (41) is installed on the brake base plate (42), the brake base plate (42) is installed on the knuckle spindle, the hub cover (44) is installed at the tail end of the knuckle spindle, and the hub bolt (43) is provided with a plurality of bolts and is uniformly distributed on the brake (41).

7. The electric explosion-proof dual-purpose steering axle for the passenger car and the freight car as claimed in claim 2, wherein the steering axle body (1) is symmetrically provided with two beam assemblies (7), and a steering arm (6) is arranged on a steering knuckle bracket (21) of the steering knuckle assembly (2) at one end of the steering axle body (1).

8. The electric explosion-proof passenger and truck dual-purpose steering axle is characterized in that two ball pins (51) are respectively fixed at two ends of a tie rod (5) through hexagonal nuts, a split pin (53) is arranged in each ball pin (51), and one end of a steering support arm (23) of each steering knuckle assembly (2) is respectively arranged on the split pin (53) above the two ball pins (51) through a hexagonal slotted nut (54).

9. The electric explosion-proof passenger-truck dual-purpose steering axle of claim 2, characterized in that the steering knuckle assembly (2) is cast from high-strength alloy steel with tensile strength of more than 980Mpa and elongation of more than 12%.

Technical Field

The invention relates to the technical field of transport vehicles, in particular to an electric explosion-proof steering axle for passenger and freight vehicles.

Background

The passenger-cargo vehicle is widely applied to places such as scenic spot sightseeing, warehouses, stations, ports, airports and the like, and is a vehicle for carrying and transporting goods or people at short distance and long distance. A passenger-cargo vehicle steering axle with a traditional structure is a double-trapezoid-arm crank-slider four-bar mechanism, wherein a steering oil cylinder with steering function has oil leakage and steering failure risks under the factors of high oil temperature, collision of a piston rod in the use process of a vehicle and the like. In addition, the steering axle with the traditional structure adopts a connection mode of two needle bearings and a thrust ball bearing, a main pin is matched with a roller of the needle bearings, and the main pin and a steering knuckle are fixedly installed together, so that the main pin rotates along with the steering knuckle when the steering knuckle rotates, and when a passenger car and a freight car are used, the steering knuckle generates larger radial force and bearing force due to frequent steering operation on a full-load, overloaded or bumpy road surface, and the main pin and the needle bearings generate larger friction force, so that the needle bearings are worn or burned out early, the main pin is worn and the like. The requirement on the machining precision of the steering bridge is high, and when the machining error is too large, the phenomenon that the axial force or the radial force of the thrust ball bearing is increased can easily occur, so that the thrust ball bearing is broken due to the too large axial force, and the phenomenon that the thrust ball bearing is worn and abraded due to the large radial force is poor. Meanwhile, once the passenger car and the freight car work in a chemical plant or in a certain corrosive environment, the thrust ball bearing is easy to corrode and the like.

Disclosure of Invention

The invention aims to: provides an electric explosion-proof dual-purpose steering axle for passenger and freight cars, which solves the defects.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides an electronic explosion-proof passenger-cargo vehicle dual-purpose steering axle, the steering axle is tie rod synchronous steering structure, includes the steering axle body, knuckle assembly, end axle, wheel hub assembly, tie rod, the knuckle assembly is provided with two and all connects at steering axle body both ends through the end axle, the wheel hub assembly is provided with two and installs respectively on two knuckle assemblies, the tie rod both ends are all fixed with two knuckle assemblies respectively through the ball round pin.

Preferably, the knuckle assembly comprises a knuckle support, a main pin and a steering support arm, the end shaft is fixed in the knuckle support through the main pin, one end of the steering support arm is fixed on the knuckle support, and the other end of the steering support arm is connected with the tie rod through a ball pin.

Preferably, the knuckle support comprises a front-end J-shaped support and a rear-end knuckle shaft, one end of the end shaft is fixed to the tail end of the steering axle body, the other end of the end shaft is provided with a cylindrical shaft sleeve, the cylindrical shaft sleeve of the end shaft is fixed in the J-shaped support through a main pin, and the hub assembly is mounted on the knuckle shaft.

Preferably, the two end support arms of the "]" type bracket are respectively provided with a main pin mounting hole, the outer walls of the two ends of the main pin are respectively mounted in the two main pin mounting holes of the "]" type bracket through tapered roller bearings, a seal ring seat is arranged between the cylindrical shaft sleeve outside the main pin and the tapered roller bearings, a rotary bearing seal ring is arranged between the seal ring seat and the inner wall of the main pin mounting hole, and an O-shaped seal ring is arranged between the seal ring seat and the cylindrical shaft sleeve.

Preferably, the outer sides of the main pin mounting holes in the support arms at the two ends of the J-shaped support are respectively provided with a main pin cover plate, and the two main pin cover plates are respectively and fixedly arranged at the two ends of the main pin.

Preferably, the wheel hub assembly includes stopper, brake bottom plate, wheel hub bolt, wheel hub lid, the stopper is installed on the brake bottom plate, the brake bottom plate is installed on the knuckle axle, the wheel hub lid is installed at the end of knuckle axle, the wheel hub bolt is provided with a plurality of and equipartition on the stopper.

Preferably, two beam assemblies are symmetrically arranged on the steering axle body, and a steering arm is arranged on a steering knuckle support of the steering knuckle assembly at one end of the steering axle body.

Preferably, the two ball pins are respectively fixed at two ends of the tie rod through hexagonal nuts, split pins are arranged in the ball pins, and one ends of the steering support arms of the two steering knuckle assemblies are respectively installed on the split pins above the two ball pins through hexagonal slotted nuts.

Preferably, the steering knuckle assembly is cast by high-strength alloy steel with tensile strength of more than 980Mpa and elongation of more than 12%.

The invention has the beneficial effects that:

according to the electric explosion-proof passenger-truck dual-purpose steering axle, the steering knuckle assembly, the end shaft and the steering axle body are connected through the main pin and the tapered roller bearing, so that the electric explosion-proof passenger-truck dual-purpose steering axle is not easy to damage and has low failure rate; the tie rod is connected with the steering support arm of the steering knuckle assembly through the ball pin, so that the installation and maintenance are convenient. The electric anti-explosion passenger and truck dual-purpose steering axle has the advantages of compact structure, light weight, high strength, explosion prevention, energy conservation, low requirement on processing precision, great improvement on the reliability and durability of products, reduction in oil leakage and steering failure risks, prevention of safety risks, improvement on the product quality and labor efficiency, and strong practicability.

Drawings

FIG. 1: the invention has a schematic structure;

FIG. 2: the invention discloses a structure schematic diagram of a steering knuckle assembly, an end shaft and a hub assembly;

FIG. 3: the steering axle body, the end shaft and the beam assembly are structurally schematic;

FIG. 4: the structure of the tie rod is schematically shown.

Detailed Description

The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1-4:

as shown in fig. 1-4, the steering axle of the dual-purpose steering axle for the electric explosion-proof passenger car and the freight car is of a tie rod synchronous steering structure and comprises a steering axle body 1, steering knuckle assemblies 2, end shafts 3, hub assemblies 4 and tie rods 5, wherein the two steering knuckle assemblies 2 are respectively connected to two ends of the steering axle body 1 through the end shafts 3, the two hub assemblies 4 are respectively installed on the two steering knuckle assemblies 2, and two ends of the tie rod 5 are respectively fixed with the two steering knuckle assemblies 2 through ball pins 51.

Two beam assemblies 7 are symmetrically arranged on the steering axle body 1, and a steering arm 6 is arranged on a steering knuckle support 21 of the steering knuckle assembly 2 at one end of the steering axle body 1.

The steering knuckle assembly 2 is cast by high-strength alloy steel with tensile strength of more than 980MPa and elongation of more than 12%. The knuckle assembly 2 comprises a knuckle support 21, a main pin 22 and a steering support arm 23, wherein the end shaft 3 is fixed in the knuckle support 21 through the main pin 22, one end of the steering support arm 23 is fixed on the knuckle support 21, and the other end of the steering support arm is connected with the tie rod 5 through a ball pin 51.

The knuckle bracket 21 consists of a front end type bracket and a rear end knuckle shaft, one end of the end shaft 3 is fixed with the tail end of the steering axle body 1, the other end of the end shaft is provided with a cylindrical shaft sleeve 31, the cylindrical shaft sleeve 31 of the end shaft 3 is fixed in the type bracket through a main pin 22, and the hub assembly 4 is arranged on the knuckle shaft. Support arms at two ends of the "]" type support are respectively provided with a main pin mounting hole, outer walls at two ends of a main pin 22 are respectively mounted in the two main pin mounting holes of the "]" type support through tapered roller bearings 24, a seal ring seat is arranged between a cylindrical shaft sleeve 31 and the tapered roller bearings 24 at the outer side of the main pin 22, a rotary bearing seal ring 25 is arranged between the seal ring seat and the inner wall of the main pin mounting hole, and an O-shaped seal ring 26 is arranged between the seal ring seat and the cylindrical shaft sleeve 31. Main pin cover plates 27 are arranged on the outer sides of main pin mounting holes in the support arms at the two ends of the ']' type support, and the two main pin cover plates 27 are fixedly arranged at the two ends of the main pin 22 respectively.

The hub assembly 4 includes a brake 41, a brake base plate 42, a hub bolt 43, and a hub cover 44, wherein the brake 41 is mounted on the brake base plate 42, the brake base plate 42 is mounted on the knuckle spindle, the hub cover 44 is mounted at the end of the knuckle spindle, and the hub bolt 43 is provided with a plurality of bolts and evenly distributed on the brake 41.

The two ball pins 51 are respectively fixed at two ends of the tie rod 5 through hexagonal nuts, the ball pins 51 are provided with split pins 53, and one ends of the steering support arms 23 of the two steering knuckle assemblies 2 are respectively installed on the split pins 53 above the two ball pins 51 through hexagonal slotted nuts 54, so that a trapezoidal arm synchronous steering mechanism is formed.

In the electric explosion-proof passenger-cargo vehicle dual-purpose steering axle, a steering knuckle assembly 2 and an end shaft 3 form a trapezoidal arm structure, a tie rod 5 realizes a synchronous steering effect, and in the actual use process, a steering arm 6 rotates the steering knuckle assembly 2 on one side of the steering arm 6 under the action of a steering oil cylinder and drives a hub assembly 4 of the steering knuckle assembly 2 to steer; meanwhile, the rotation of the steering knuckle assembly 2 on one side of the steering arm 6 causes the steering support arm 23 on the steering knuckle assembly 2 to drive the tie rod 5 to steer through the ball pin 51, so as to pull the rotation of the steering knuckle assembly 2 on the other side and the synchronous steering of the hub assembly 4.

According to the electric explosion-proof passenger-truck dual-purpose steering axle, the steering knuckle assembly 2, the end shaft 3 and the steering axle body 4 are connected through the main pin 22 and the tapered roller bearing 24, so that the electric explosion-proof passenger-truck dual-purpose steering axle is not easy to damage and has low failure rate; the tie rod 5 is connected with the steering support arm 23 of the steering knuckle assembly 2 through the ball pin 51, so that the installation and maintenance are convenient.

The electric anti-explosion passenger and truck dual-purpose steering axle has the advantages of compact structure, light weight, high strength, explosion prevention, energy conservation, low requirement on processing precision, great improvement on the reliability and durability of products, reduction in oil leakage and steering failure risks, prevention of safety risks, improvement on the product quality and labor efficiency, and strong practicability.

The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without such modifications.