CN111688408A - Cast steering axle of double-cone bearing steering mechanism - Google Patents
Cast steering axle of double-cone bearing steering mechanism Download PDFInfo
- Publication number
- CN111688408A CN111688408A CN202010646901.3A CN202010646901A CN111688408A CN 111688408 A CN111688408 A CN 111688408A CN 202010646901 A CN202010646901 A CN 202010646901A CN 111688408 A CN111688408 A CN 111688408A
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- China
- Prior art keywords
- steering
- axle body
- bearing
- steering axle
- hub assembly
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/003—Steerable axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2360/00—Materials; Physical forms thereof
- B60B2360/10—Metallic materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/30—Increase in
- B60B2900/325—Reliability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/30—Increase in
- B60B2900/331—Safety or security
- B60B2900/3312—Safety or security during regular use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/50—Improvement of
- B60B2900/572—Visual appearance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention discloses a cast steering axle of a double-conical bearing steering mechanism, which comprises a steering axle body and a steering knuckle hub assembly, wherein the steering knuckle hub assembly is respectively arranged at two sides of the steering axle body, the steering knuckle hub assembly is fixedly arranged on the steering axle body through a steering mechanism respectively, the steering mechanism comprises a main pin, the steering knuckle hub assembly and the main pin are fixedly arranged through a screw, a conical roller bearing and a framework oil seal are respectively arranged in an upper pin boss and a lower pin boss of the steering axle body, the upper part and the lower part of the main pin are respectively arranged on the conical roller bearing, a bearing retainer ring is arranged between the conical roller bearing and the steering knuckle hub assembly, an O-shaped seal ring is arranged between the bearing retainer ring and the steering knuckle hub assembly, a bearing press plate is arranged at the lower end of the conical roller bearing positioned below, and the bearing press plate is fixed on the lower pin boss of the steering axle body through a second screw. The cast steering axle of the double-cone bearing steering mechanism can greatly improve the reliability and durability of the steering axle.
Description
Technical Field
The invention relates to the field of industrial vehicles, in particular to a cast steering axle of a double-cone bearing steering mechanism.
Background
The forklift steering axle with the traditional structure has the defects that the steering axle body is of a box body type structure welded by steel plates, the processing technology is complex, the welding defects, the appearance is poor and the like. Because the steering axle of traditional structure is box formula structure, the dismouting is inconvenient when the installation and maintenance of steering cylinder, only need be convenient for dismantle in the space that has the geosyncline or bore under the frame chassis. Traditional steer axle is the rigidity connection, but fork truck when the road surface operation of jolting, then can reduce steer axle body life gently, and then the axle body takes place plastic deformation or even the risk of axle body fracture, and driver's driving comfort degree reduces simultaneously heavily. And the steering axle steering mechanism of the traditional structure is in a connection form of 2 needle bearings and 1 thrust ball bearing, a main pin is matched with a roller of the needle bearings, the main pin and a steering knuckle are fixedly installed together, the main pin rotates along with the steering knuckle when the steering knuckle rotates, and when the forklift is in use, the steering knuckle generates large 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 large friction force, so that the needle bearing retainer generates bad phenomena of early-rise abrasion or burning-out, main pin abrasion and the like. Once the forklift works in a chemical plant or in a certain corrosive environment, the adverse phenomena of thrust ball bearing corrosion and the like occur; and when the machining error of the inner gear distance of the steering axle body is too large or too small or the bridge plate is elastically deformed, the phenomenon that the axial force or the radial force of the thrust ball bearing is increased can occur, so that the thrust ball bearing is broken due to the too large axial force, and the large radial force causes the bad phenomena of early abrasion and the like, and certain safety risk exists.
Disclosure of Invention
The invention aims to provide a cast steering axle of a double-cone bearing steering mechanism, which can greatly improve the reliability and durability of the steering axle.
In order to achieve the purpose, the invention provides the following technical scheme:
a cast steering axle of a double-cone bearing steering mechanism comprises a steering axle body and steering knuckle hub assemblies, wherein the steering knuckle hub assemblies are respectively arranged on two sides of the steering axle body, steering oil cylinders are symmetrically fixed on the steering axle body, piston rods of the steering oil cylinders are respectively hinged with one end of a connecting rod assembly, the other end of the connecting rod assembly is hinged with the steering knuckle hub assemblies, the steering knuckle hub assemblies are respectively and fixedly arranged on the steering axle body through a steering mechanism, each steering mechanism comprises a main pin, the main pin vertically penetrates through the steering knuckle hub assemblies, the upper ends and the lower ends of the main pins are respectively arranged in an upper pin boss and a lower pin boss of the steering axle body, the steering knuckle hub assemblies and the main pins are fixedly arranged through screws, cone roller bearings and framework oil seals are respectively arranged in the upper pin boss and the lower pin boss of the steering axle body, and the upper portions and the lower portions of the main pins are respectively arranged on the cone roller bearings, a bearing retainer ring is installed between the tapered roller bearing and the steering knuckle hub assembly, an O-shaped sealing ring is installed between the bearing retainer ring and the steering knuckle hub assembly, a bearing pressing plate is installed at the lower end of the tapered roller bearing and located below the bearing retainer ring, the bearing pressing plate is fixed on a lower pin boss of the steering axle body through a second screw, and the steering knuckle hub assembly is fastened on the steering axle body through the tapered roller bearing, a main pin, the bearing retainer ring and the bearing pressing plate.
Preferably, the upper end of the upper pin seat of the steering axle body is provided with a dustproof cover, and the dustproof cover is fixed with the steering axle body through a third screw.
Preferably, the steer axle body is cast from ductile iron.
Preferably, the steering axle body is cast by high-strength ductile cast iron with the tensile strength of more than 450MPa and the elongation of more than 15%.
Preferably, the rear end of the steer axle body is not closed.
Compared with the prior art, the invention has the beneficial effects that:
1) the steering axle body is cast by high-strength nodular cast iron, has a compact structure and an attractive appearance, improves the labor efficiency and improves the product quality.
2) The steering knuckle hub assembly is fixedly arranged on a steering axle body through a steering mechanism of a double-tapered roller bearing, when the steering knuckle rotates, the inner ring and the outer ring of the bearing and the roller move relatively, and the main pin and the inner ring of the tapered bearing do not slide relatively, so that the problems of damage of the main pin and damage of the original needle roller bearing and thrust bearing are effectively solved.
3) The steering oil cylinder enters from the unclosed opening at the rear end of the steering axle body and is fixedly arranged in the steering axle body, so that the installation and maintenance are convenient.
4) The cast steering axle is ingenious in design, reliability and durability are greatly improved, and safety risks are prevented.
Drawings
FIG. 1 is a schematic structural view of a cast steering axle of a double cone bearing steering mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a steer axle body in an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of a steering mechanism in the embodiment of the present invention;
FIG. 4 is an enlarged view at A in FIG. 3;
in the figure, 1, a steering axle body, 101, an upper pin base, 102, a dust cover, 103, three screws, 104, a lower pin base, 2, a steering knuckle hub assembly, 3, a steering oil cylinder, 4, a connecting rod assembly, 5, a steering mechanism, 501, a main pin, 502, a first screw, 503, a tapered roller bearing, 504, a framework oil seal, 505, a bearing retainer, 506, an O-shaped sealing ring, 507, a bearing pressure plate, 508 and a second screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a cast steering axle of a double-cone bearing steering mechanism includes a steering axle body 1 and a steering knuckle hub assembly 2, wherein the steering axle body 1 is cast by ductile cast iron. The steering axle body 1 is cast by high-strength nodular cast iron with the tensile strength of more than 450MPa and the elongation of more than 15 percent. The upper end of an upper pin seat 101 of the steering axle body 1 is provided with a dustproof cover 102, and the dustproof cover 102 is fixed with the steering axle body 1 through a third screw 103. The steering knuckle wheel hub assemblies 2 are respectively arranged on two sides of the steering axle body 1, steering oil cylinders 3 are symmetrically fixed on the steering axle body 1, and the steering oil cylinders 3 are fixedly arranged in the steering axle body 1 through bolts and positioning pins. The steering oil cylinder 3 comprises a cylinder barrel assembly, a piston rod, a piston and a guide sleeve. A piston rod of the steering oil cylinder 3 is hinged with one end of a connecting rod assembly 4, and the other end of the connecting rod assembly 4 is hinged with the steering knuckle hub assembly 2. The rear end of the steering axle body 1 is not closed, and the steering oil cylinder 3 enters from the position where the rear end of the steering axle body 1 is not closed and is fixedly arranged in the steering axle body 1.
The steering knuckle hub assembly 2 is fixedly arranged on the steering axle body 1 through a steering mechanism 5 respectively, the steering mechanism 5 comprises a main pin 501, the main pin 501 vertically penetrates through the steering knuckle hub assembly 2, and the upper end and the lower end of the main pin 501 are arranged in an upper pin base 101 and a lower pin base 104 of the steering axle body 1 respectively. The knuckle hub assembly 2 and the main pin 501 are fixedly mounted through a first screw 502, and a tapered roller bearing 503 and a framework oil seal 504 are arranged in the upper pin base 101 and the lower pin base 104 of the steering axle body 1. The upper part and the lower part of the kingpin 501 are respectively mounted on a tapered roller bearing 503, a bearing retainer 505 is mounted between the tapered roller bearing 503 and the knuckle hub assembly 2, and an O-ring 506 is mounted between the bearing retainer 505 and the knuckle hub assembly 2. The backbone seal 504 and O-ring 506 prevent grease leakage and ingress of dust and dirt. A bearing pressing plate 507 is installed at the lower end of the conical roller bearing 503 positioned below, the bearing pressing plate 507 is fixed on the lower pin boss 104 of the steering axle body 1 through a second screw 508, and the steering knuckle hub assembly 2 is fastened on the steering axle body 1 through the conical roller bearing 503, the main pin 501, the bearing retainer 505 and the bearing pressing plate 507.
The device integrally forms a double-trapezoid-arm crank-slider four-bar linkage. The trapezoidal arm is a steering knuckle hub assembly 2, the crank is a connecting rod assembly 4, the sliding block is a steering oil cylinder 3, the four-connecting rod is a lever formed by two main pin 501 holes of a steering axle body 1, a lever formed by the main pin 501 hole and a pull arm hole of the steering knuckle hub assembly 2 and a lever formed by two mounting holes of a piston rod in the steering oil cylinder 3, the lever formed by the two mounting holes of the connecting rod assembly 4 plays a role in bearing and steering.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (5)
1. The utility model provides a two conical bearing steering mechanism's casting steer axle which characterized in that: the steering gear comprises a steering axle body and a steering knuckle hub assembly, wherein the steering knuckle hub assembly is respectively arranged on two sides of the steering axle body, steering oil cylinders are symmetrically fixed on the steering axle body, piston rods of the steering oil cylinders are respectively hinged with one end of a connecting rod assembly, the other end of the connecting rod assembly is hinged with the steering knuckle hub assembly, the steering knuckle hub assembly is fixedly arranged on the steering axle body through a steering mechanism, the steering mechanism comprises a main pin, the main pin vertically penetrates through the steering knuckle hub assembly, the upper end and the lower end of the main pin are respectively arranged in an upper pin boss and a lower pin boss of the steering axle body, the steering knuckle hub assembly and the main pin are fixedly arranged through a screw, tapered roller bearings and framework oil seals are respectively arranged in the upper pin boss and the lower pin boss of the steering axle body, the upper part and the lower part of the main pin are respectively arranged on the tapered roller bearings, and bearing retainer rings are arranged between the tapered roller bearings and the steering knuckle hub assembly, an O-shaped sealing ring is arranged between the bearing retainer ring and the steering knuckle hub assembly, a bearing pressing plate is arranged at the lower end of the tapered roller bearing and is fixed on a lower pin boss of the steering axle body through a second screw, and the steering knuckle hub assembly is fastened on the steering axle body through the tapered roller bearing, a main pin, the bearing retainer ring and the bearing pressing plate.
2. The cast steering axle of a double cone bearing steering mechanism according to claim 1, wherein: and a dustproof cover is installed at the upper end of the upper pin seat of the steering axle body and is fixed with the steering axle body through a third screw.
3. The cast steering axle of a double cone bearing steering mechanism according to claim 1, wherein: the steering axle body is cast by ductile cast iron.
4. The cast steering axle of a double cone bearing steering mechanism according to claim 3, wherein: the steering axle body is cast by high-strength nodular cast iron with the tensile strength of more than 450MPa and the elongation of more than 15%.
5. The cast steering axle of a double cone bearing steering mechanism according to claim 1, wherein: the rear end of the steering axle body is not closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010646901.3A CN111688408A (en) | 2020-07-07 | 2020-07-07 | Cast steering axle of double-cone bearing steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010646901.3A CN111688408A (en) | 2020-07-07 | 2020-07-07 | Cast steering axle of double-cone bearing steering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111688408A true CN111688408A (en) | 2020-09-22 |
Family
ID=72485541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010646901.3A Pending CN111688408A (en) | 2020-07-07 | 2020-07-07 | Cast steering axle of double-cone bearing steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111688408A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112373561A (en) * | 2020-11-13 | 2021-02-19 | 安徽江淮汽车集团股份有限公司 | Knuckle structure and vehicle front axle |
| CN113400862A (en) * | 2021-08-10 | 2021-09-17 | 合肥海源机械有限公司 | Electric explosion-proof steering axle for passenger and freight vehicles |
-
2020
- 2020-07-07 CN CN202010646901.3A patent/CN111688408A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112373561A (en) * | 2020-11-13 | 2021-02-19 | 安徽江淮汽车集团股份有限公司 | Knuckle structure and vehicle front axle |
| CN113400862A (en) * | 2021-08-10 | 2021-09-17 | 合肥海源机械有限公司 | Electric explosion-proof steering axle for passenger and freight vehicles |
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