CN212022205U

CN212022205U - Universal wheel mechanism for heavy-load carrying vehicle

Info

Publication number: CN212022205U
Application number: CN202020689099.1U
Authority: CN
Inventors: 鲍文鸿; 方国威
Original assignee: Zhejiang Lanxi Shangye Machinery Co ltd
Current assignee: Zhejiang Lanxi Shangye Machinery Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-11-27
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to a universal wheel mechanism for heavy load carrier, including the automobile body drive platen, the steering spindle cover, the steering spindle axle, universal wheel fork and stabilizer, the welding of steering spindle cover is on the automobile body drive platen, the steering spindle cover top is equipped with the notch that is greater than the bore of stepping, pressure spring and ball guide pin bushing are equipped with respectively to the steering spindle axle, the last round flange linear bearing that is equipped with of steering spindle axle, round flange linear bearing is connected with the fastener for the steering spindle cover, steering spindle axle bottom welding universal wheel fork, the last balance shaft that is equipped with of universal wheel fork, universal wheel fork axle is fixed with the universal wheel fork for the balance shaft, universal wheel fork axle one end is fixed by the fork axle retaining ring, the stabilizer is equipped with to balance shaft both sides, lock. The utility model discloses a stabilizer can bear bigger load, and whole car balance stability is better, improves the performance of enterprises.

Description

Universal wheel mechanism for heavy-load carrying vehicle

Technical Field

The utility model relates to a carrier field, concretely relates to universal wheel mechanism for heavy load carrier.

Background

Currently, many electric pallet carriers in the forklift industry in the field of industrial vehicles adopt balance wheel mechanisms, some of which have simpler structures, are directly assembled with trundles and kept at a certain height from the ground without contacting the ground, and have poor balance stability; some of the shock-absorbing universal casters are provided with shock-absorbing universal casters, although the balance stability is improved, the shock-absorbing universal casters are easily affected by factors such as uneven ground, pits and the like in the operation process, and the shock-absorbing effect is not ideal, so that the overall balance is affected.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: aiming at various defects and deficiencies of the prior art, the universal wheel mechanism for the heavy-load carrying vehicle with better stability is provided.

The utility model discloses a concrete technical scheme is: a universal wheel mechanism for heavy-duty carrier is composed of a drive bench, a steering axle sleeve welded to said drive bench, a steering pin axle with two-step shape and notch on its top for greater diameter than the upper one, a universal wheel fork with circular flange, a balance wheel, a steering axle sleeve with circular flange and ball guide sleeve, a steering axle installed to said steering axle sleeve, a balancing axle installed to said universal wheel fork, and a balancing wheel fixed to said universal wheel fork by a fork axle ring, the balance wheel is arranged on two sides of the balance wheel shaft through the deep groove ball bearings, the balance wheel can swing left and right around the axis of the universal wheel fork shaft by a certain range, the balance wheel can be well adapted to the uneven ground, and the locknut is arranged on the outer side of the balance wheel to prevent the balance wheel from being separated.

Furthermore, the top of the steering pin shaft is higher than the bottom of the notch, the steering pin shaft is further sleeved with a pin shaft cushion block, the pin shaft cushion block is located at the top of the circular flange linear bearing, a pin shaft check ring is further arranged above the pin shaft cushion block and on the steering pin shaft, the pin shaft check ring ensures that the pressure spring cannot loosen, and a dust cover is further arranged at the top of the steering shaft sleeve and prevents dust from entering the steering shaft sleeve.

The working principle is as follows: when the trolley is used, the balance wheel is in contact with the ground to roll, when the trolley runs into uneven ground, the balance wheel is stressed through the universal wheel fork to drive the steering pin to move upwards, at the moment, the pressure spring is stressed and compressed, the vibration of the balance wheel trolley is relieved, the balance of the trolley is kept, and after external force disappears, the pressure spring is opened, so that the pin shaft cushion block is pressed by the pin shaft check ring.

The utility model has the advantages that: 1. the balance wheel can bear larger load, the requirement on the road flatness is lower, and the balance stability of the whole vehicle is better. 2. The mechanism is simple in structure and easy to produce, and enterprise benefits are improved.

Drawings

FIG. 1: do the utility model discloses a main view section structure sketch map.

FIG. 2: do the utility model discloses a section structure schematic diagram is looked to the right side.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings.

A universal wheel mechanism for heavy-duty carriers comprises a vehicle body driving platen 2, a steering shaft sleeve 3, a steering pin shaft 4, a universal wheel fork 6 and a balance wheel 7, wherein the steering shaft sleeve 3 is welded on the vehicle body driving platen 2, the mechanism is fixedly connected with a carrier, the steering shaft sleeve 3 is internally provided with a two-step ladder shape, the top of the steering shaft sleeve 3 is provided with a notch 17 with the diameter larger than that of an upper step, the steering pin shaft 4 is in a three-step ladder shape, a pressure spring 13 and a ball guide sleeve 5 are respectively arranged on a second step and a third step, the assembled steering pin shaft 4 is arranged in the steering shaft sleeve 3, the top of the pressure spring 13 is positioned on a ladder switching surface of the steering shaft sleeve 3, a circular flange linear bearing 12 is arranged on the first step of the steering pin shaft 4 from the notch 17, the circular flange linear bearing 12 is connected with the steering shaft sleeve 3 by a fastener, the universal wheel fork 6 is welded at the bottom of the steering pin shaft, one end of a universal wheel fork shaft 10 is fixed by a fork shaft retainer ring 15, balance wheels 7 are arranged on two sides of a balance wheel shaft 8 through deep groove ball bearings 9, the balance wheels 7 can swing left and right around the axis of the universal wheel fork shaft 10 by a certain range and can better adapt to the uneven ground, and a locknut 14 is arranged on the outer side of each balance wheel 7 to prevent the balance wheels 7 from falling off.

Furthermore, the top of the steering pin shaft 4 is higher than the bottom of the notch 17, the steering pin shaft 4 is further sleeved with a pin shaft cushion block 11, the pin shaft cushion block 11 is located at the top of the circular flange linear bearing 12, a pin shaft check ring 16 is further arranged on the steering pin shaft 4 above the pin shaft cushion block 11, the pin shaft check ring 16 ensures that the pressure spring 13 cannot be loosened, and the top of the steering shaft sleeve 3 is further provided with a dust cover 1 to prevent dust from entering the steering shaft sleeve 3.

The working principle is as follows: during the use, the stabilizer 7 contacts ground and rolls, and when meetting uneven ground, the stabilizer 7 atress drives steering pin 4 upwards through universal wheel fork 6, and at this moment the compression spring 13 atress is compressed, alleviates the vibrations of stabilizer 7 carrier and feels to keep the equilibrium of carrier, treat that external force disappears after the compression spring 13 opens, make round pin axle retaining ring 16 push down round pin axle cushion 11.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a universal wheel mechanism for heavy load haulage vehicle which characterized in that: the steering mechanism comprises a vehicle body driving bedplate (2), a steering shaft sleeve (3), a steering pin shaft (4), a universal wheel fork (6) and a balance wheel (7), wherein the steering shaft sleeve (3) is welded on the vehicle body driving bedplate (2), the steering shaft sleeve (3) is internally provided with a two-step ladder shape, the top of the steering shaft sleeve (3) is provided with a notch (17) with a diameter larger than that of an upper step, the steering pin shaft (4) is in a three-step ladder shape, a pressure spring (13) and a ball guide sleeve (5) are respectively arranged on a second step and a third step, the assembled steering pin shaft (4) is arranged in the steering shaft sleeve (3), the top of the pressure spring (13) is positioned on a ladder switching surface of the steering shaft sleeve (3), a circular flange linear bearing (12) is arranged on the first step of the steering pin shaft (4) and is arranged from the notch (17), the circular flange linear bearing (12) is connected with the steering shaft sleeve (3) through a fastener, the, the universal wheel fork is characterized in that a balance wheel shaft (8) is arranged on the universal wheel fork (6), the balance wheel shaft (8) is fixed with the universal wheel fork (6) through a universal wheel fork shaft (10), one end of the universal wheel fork shaft (10) is fixed through a fork shaft check ring (15), balance wheels (7) are arranged on two sides of the balance wheel shaft (8) through deep groove ball bearings (9), and anti-loose nuts (14) are arranged on the outer sides of the balance wheels (7).

2. The universal wheel mechanism of claim 1, wherein: the steering pin shaft (4) top is higher than the bottom of the notch (17), the steering pin shaft (4) is further sleeved with a pin shaft cushion block (11), the pin shaft cushion block (11) is located at the top of the circular flange linear bearing (12), a pin shaft check ring (16) is further arranged above the pin shaft cushion block (11) on the steering pin shaft (4), and a dust cover (1) is further arranged at the top of the steering shaft sleeve (3).