CN212243547U

CN212243547U - Forklift casting steering axle

Info

Publication number: CN212243547U
Application number: CN202021039893.8U
Authority: CN
Inventors: 沈四海
Original assignee: Hefei Haiyuan Machinery Co Ltd
Current assignee: Hefei Haiyuan Machinery Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-12-29
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a cast steering axle for a forklift, which comprises a steering axle body, a steering oil cylinder, two steering knuckles, connecting rods, a main pin and a connecting rod pin; the two main pins are respectively arranged at two ends of the steering axle body; the main pin is provided with two tapered roller bearings, the steering knuckle is arranged on the two tapered roller bearings, the upper end of each tapered roller bearing is provided with a dustproof ring, the lower end of each tapered roller bearing is provided with an oil seal, the steering knuckle is provided with a pull arm hole, and the connecting rod pin is arranged in the pull arm hole; the steering oil cylinder is arranged on the steering axle body and comprises a cylinder barrel assembly, a piston rod, a piston, a flange bracket and two guide sleeves, the flange bracket is welded on the cylinder barrel assembly, the piston is sleeved on the piston rod, and the piston rod is arranged in the cylinder barrel assembly through the two guide sleeves; two ends of the connecting rod are respectively hinged on the connecting rod pin and the piston rod. The utility model discloses promote steering axle's reliability and durability by a wide margin, take precautions against the safety risk.

Description

Forklift casting steering axle

Technical Field

The utility model relates to an industrial vehicle technical field specifically is a fork truck is with casting steering axle.

Background

The forklift is widely applied to places such as factories, warehouses, stations, ports, airports and the like, and is a material handling vehicle for mechanized loading and unloading, stacking and short-distance transportation. The forklift steering axle body with the traditional structure is a box type structure welded by steel plates, and has the defects of complex processing technology, poor welding defect, poor appearance and the like. The steering axle steering mechanism with the traditional structure is formed by connecting two needle roller bearings and a thrust ball bearing, a main pin is matched with a roller of the needle roller bearings, the main pin and a steering knuckle are fixedly arranged together, the main pin rotates along with the steering knuckle when the steering knuckle rotates, and when a forklift is 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 roller bearings generate larger friction force, so that a needle roller bearing retainer has bad phenomena of early-rise abrasion or burning-out, main pin abrasion and the like; 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 early-rise abrasion and other adverse phenomena are caused by the large radial force.

Accordingly, there is a need for a cast steering axle for a forklift.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fork truck is with casting steering axle, technical problem that exists in can the above-mentioned background of effectual solution.

In order to achieve the above object, the present invention provides the following technical solutions:

a cast steering axle for a forklift comprises a steering axle body, a steering oil cylinder, two steering knuckles, two connecting rods, two main pins and two connecting rod pins; the two main pins are respectively arranged at two ends of the steering axle body; the main pin is provided with two tapered roller bearings, the steering knuckle is installed on the two tapered roller bearings, the upper end of each tapered roller bearing is provided with a dustproof ring, the lower end of each tapered roller bearing is provided with an oil seal, the steering knuckle is provided with a pull arm hole, and the connecting rod pin is installed in the pull arm hole; the steering oil cylinder is arranged on the steering axle body and comprises a cylinder barrel assembly, a piston rod, a piston, a flange bracket and two guide sleeves, wherein the flange bracket is welded on the cylinder barrel assembly; and two ends of the connecting rod are respectively hinged on the connecting rod pin and the piston rod.

Preferably, 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%.

Preferably, the steering oil cylinder is fixed on the steering axle body through four hinged bolts.

Preferably, the flange bracket is formed by forging.

Preferably, the inner circle axis of the mounting surface of the flange bracket and the central axis of the piston rod are heavy.

Preferably, a wheel hub is arranged on the steering knuckle.

The beneficial effects of the utility model reside in that:

the utility model discloses a set up knuckle and swizzle and tapered roller bearing's cooperation, effectively solved the trouble problem of swizzle, bearing and thrust bearing damage among the conventional art. The utility model discloses promote steering axle's reliability and durability by a wide margin, take precautions against the safety risk.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1: the utility model discloses the schematic structure.

FIG. 2: the utility model discloses the structure schematic diagram that knuckle and steering axle body are connected.

FIG. 3: the utility model discloses a department's structure schematic diagram.

FIG. 4: the utility model discloses steering cylinder's schematic structure diagram.

FIG. 5: the utility model discloses flange bracket's structural schematic.

In the figure: 1. the steering axle comprises a steering axle body, 2, a steering knuckle, 21, a tapered roller bearing, 22, a dustproof ring, 23, an oil seal, 24, a steering wheel hub, 3, a main pin, 4, a connecting rod, 5, a connecting rod pin, 6, a steering oil cylinder, 61, a cylinder barrel assembly, 611, a flange support, 62, a piston rod, 63, a piston, 64, a guide sleeve, 7 and a hinged bolt.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the attached drawings, but the invention can be implemented in many different ways as defined and covered by the claims:

please refer to fig. 1, the utility model provides a fork truck is with casting steer axle, including steer axle body 1, steering cylinder 6 and be knuckle 2, connecting rod 4, king pin 3, connecting rod pin 5 two, steer axle body 1 is formed by the high strength nodular cast iron casting that tensile strength is greater than 450Mpa, the percentage elongation is greater than 15%, compact structure, handsome in appearance improves labor efficiency, promotes the product quality.

Referring to fig. 1, 2 and 3, two main pins 3 are respectively disposed at two ends of the steer axle 1, two tapered roller bearings 21 are disposed on the main pins 3, the knuckle 2 is mounted on the two tapered roller bearings 21, a dust ring 22 is disposed at an upper end of the tapered roller bearings 21, an oil seal 23 is disposed at a lower end of the tapered roller bearings 21, and the dust ring 22 and the oil seal 23 can prevent dust and sewage from entering.

Referring to fig. 1 and 4, the steering cylinder 6 is fixed on the steering axle body 1 by four hinge bolts 7, and the steering cylinder 6 includes a cylinder assembly 61, a piston rod 62, a piston 63, a flange bracket 611, and two guide sleeves 64.

Referring to fig. 4 and 5, the piston 63 is sleeved on the piston rod 62, the piston rod 62 is installed in the cylinder assembly 61 through the two guide sleeves 64, the flange bracket 611 is welded on the cylinder assembly 61, the flange bracket 611 is formed by forging, and an inner circle axis of an installation surface of the flange bracket 611 coincides with a central axis of the piston rod 62, so that the flange bracket 611 is convenient to install and maintain.

Referring to fig. 4, the two ends of the connecting rod 4 are respectively hinged on the connecting rod pin 5 and the piston rod 62. The knuckle 2 is provided with a draw arm hole, the connecting rod pin 5 is arranged in the draw arm hole, and the knuckle 2 is provided with a wheel hub 24.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a fork truck is with casting steer axle which characterized in that: the steering axle comprises a steering axle body, a steering oil cylinder, two steering knuckles, a connecting rod, a main pin and a connecting rod pin; the two main pins are respectively arranged at two ends of the steering axle body; the main pin is provided with two tapered roller bearings, the steering knuckle is installed on the two tapered roller bearings, the upper end of each tapered roller bearing is provided with a dustproof ring, the lower end of each tapered roller bearing is provided with an oil seal, the steering knuckle is provided with a pull arm hole, and the connecting rod pin is installed in the pull arm hole; the steering oil cylinder is arranged on the steering axle body and comprises a cylinder barrel assembly, a piston rod, a piston, a flange bracket and two guide sleeves, wherein the flange bracket is welded on the cylinder barrel assembly; and two ends of the connecting rod are respectively hinged on the connecting rod pin and the piston rod.

2. The cast steering axle for a forklift truck according to claim 1, characterized in that: 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%.

3. The cast steering axle for a forklift truck according to claim 1, characterized in that: the steering oil cylinder is fixed on the steering axle body through four hinged bolts.

4. The cast steering axle for a forklift truck according to claim 1, characterized in that: the flange bracket is formed by forging.

5. The cast steering axle for a forklift truck according to claim 1, characterized in that: the inner circle axis of the mounting surface of the flange bracket and the central axis of the piston rod are heavy.

6. The cast steering axle for a forklift truck according to claim 1, characterized in that: and a wheel hub is arranged on the steering knuckle.