CN210591219U

CN210591219U - A strong support polyurethane caster with shock absorption function

Info

Publication number: CN210591219U
Application number: CN201921328967.7U
Authority: CN
Inventors: 胡坚兴
Original assignee: Taizhou Supuyou Polyurethane Products Co Ltd
Current assignee: Taizhou Supuyou Polyurethane Products Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-22
Anticipated expiration: 2029-08-15

Abstract

A strong-support polyurethane caster with a damping function comprises a wheel body and a polyurethane ring, wherein flange plates are respectively arranged on two sides of the outer peripheral surface of the wheel body, the polyurethane ring wraps the outer peripheral surface of the wheel body and is positioned between the two flange plates, a gap is formed between the inner wall of the polyurethane ring and the outer peripheral surface of the wheel body, a plurality of damping devices are uniformly distributed in the gap in a circumferential manner, each damping device comprises a hinged shaft, a lower shaft sleeve, a steering shaft, an upper shaft sleeve and a supporting plate, each hinged shaft comprises an elastic part and rigid parts arranged at two ends of the elastic part, the hinged shaft is integrally arranged in an installation hole of the wheel body in a penetrating manner, and a groove is formed in the position, matched with the elastic part, of the; the lower end of the lower shaft sleeve is sleeved on the elastic part, and the lower shaft sleeve can rotate around the axis of the elastic part relative to the elastic part. The utility model discloses a strong support polyurethane truckle with shock-absorbing function has improved the holding power, noise when reducing the roll.

Description

Strong supporting polyurethane caster with damping function

Technical Field

The utility model relates to a strong polyurethane truckle that supports with shock-absorbing function.

Background

During transportation, a cart is often used to transport goods, and the cart generally includes a cargo platform, a plurality of casters disposed on a bottom surface of the cargo platform, and a handle disposed on the cargo platform, wherein the quality of the casters determines the level of the service performance of the cart. The existing caster wheel is usually made of rubber, and has the defects of non-wear resistance, easy aging and the like, so that the polyurethane caster wheel appears on the market, and the problems are well solved, but the existing polyurethane caster wheel also has the following defects: 1. the supporting capability is poor, and deformation is easy to occur; 2. the trolley has no damping function, so that the trolley has large noise when moving.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a strong support polyurethane truckle with shock-absorbing function is provided, it can improve the holding power, noise when reducing the small handcart and removing.

In order to solve the technical problem, the utility model discloses a strong technical solution who supports polyurethane truckle with shock-absorbing function does:

a strong-support polyurethane caster with a damping function comprises a caster body and a polyurethane ring, wherein flange plates are respectively arranged on two sides of the outer peripheral surface of the caster body; a gap is formed between the inner wall of the polyurethane ring and the outer peripheral surface of the wheel body, a plurality of damping devices are uniformly distributed in the gap in a circumferential manner, each damping device comprises an articulated shaft, a lower shaft sleeve, a steering shaft, an upper shaft sleeve and a supporting plate, each articulated shaft comprises an elastic part and rigid parts arranged at two ends of the elastic part, the whole articulated shaft is arranged in the mounting hole of the wheel body in a penetrating manner, and a groove is formed in the position, matched with the elastic part, of the outer peripheral surface of the wheel body; the lower end of the lower shaft sleeve is sleeved on the elastic part, and the lower shaft sleeve can rotate around the axis of the elastic part relative to the elastic part; the upper end of the upper shaft sleeve is fixedly connected with a supporting plate; the upper surface of the supporting plate is matched and supported on the inner wall of the polyurethane ring; the steering shaft is connected to the lower end of the upper shaft sleeve and the upper end of the lower shaft sleeve; and universal steering devices are arranged between the upper end of the steering shaft and the lower end of the upper shaft sleeve and between the lower end of the steering shaft and the upper end of the lower shaft sleeve.

The universal steering device comprises a hinge groove and a ball head matched and arranged in the hinge groove, a plurality of axial movable grooves are uniformly distributed in the hinge groove in the circumferential direction, a plurality of steel ball grooves are formed in the ball head, the plurality of steel ball grooves correspond to the plurality of axial movable grooves one by one, and steel balls are arranged between the corresponding steel ball grooves and the axial movable grooves; the outer end face of the ball head is provided with a steel ball end face groove, and a steel ball is arranged between the steel ball end face groove and the inner end face of the hinge joint groove.

The diameter of the steel ball at the position of the steel ball end surface groove is larger than that of the steel ball at the position of the steel ball groove.

The elastic part is a spring shaft.

The utility model discloses the technological effect that can reach is:

compared with the prior art, the utility model discloses a strong support polyurethane truckle with shock-absorbing function has following advantage: 1. the polyurethane ring and the wheel body are spaced, a deformation space is formed when the polyurethane ring and the wheel body are sunken inwards relative to the wheel body, and the damping device enables the deformation space to have damping and supporting capacity; 2. the steel balls in the steel ball end surface grooves have universal steering on a steering shaft and also have axial supporting force; 3. the universal device that turns to for the steering spindle has universal rotation angle, and when the polyurethane ring was inwards sunken, the backup pad when supporting the polyurethane ring, when rolling along with the truckle, the inwards sunken position of polyurethane ring can squint thereupon, and the stress point of backup pad also changes, and universal device that turns to makes this stress point can be smooth transmission to steering spindle and articulated shaft, thereby the omnidirectional provides the holding power.

Drawings

The invention will be described in further detail with reference to the following drawings and detailed description:

FIG. 1 is a perspective view of the strong support polyurethane caster with shock absorption function of the present invention;

FIG. 2 is an exploded perspective view of the strong support polyurethane caster with shock absorption function of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a sectional view of the strong support polyurethane caster with shock absorption function of the present invention;

fig. 5 is an enlarged view of a portion B of fig. 4.

Detailed Description

Referring to fig. 1 to 5, the present invention provides a strong supporting polyurethane caster with damping function, including a wheel body 1 and a polyurethane ring 2, wherein flange plates 3 are respectively disposed on two sides of an outer circumferential surface of the wheel body 1, the polyurethane ring 2 is wrapped on the outer circumferential surface of the wheel body 1, and the polyurethane ring 2 is located between the two flange plates 3; a gap 4 is formed between the inner wall of the polyurethane ring 2 and the outer circumferential surface of the wheel body 1, a plurality of damping devices 5 are uniformly distributed in the gap 4 in a circumferential manner, each damping device 5 comprises a hinge shaft 6, a lower shaft sleeve 7, a steering shaft 8, an upper shaft sleeve 9 and a support plate 10, each hinge shaft 6 comprises an elastic part 11 and rigid parts 12 arranged at two ends of each elastic part 11, each hinge shaft 6 is integrally arranged in a mounting hole 13 of the wheel body 1 in a penetrating manner, and a groove 14 is formed in the position, matched with the elastic parts 11, of the outer circumferential surface of the wheel body 1; the lower end of the lower shaft sleeve 7 is sleeved on the elastic part 11, and the lower shaft sleeve 7 can rotate around the axis of the elastic part 11 relative to the elastic part 11; the upper end of the upper shaft sleeve 9 is fixedly connected with a support plate 10; the upper surface of the supporting plate 10 is matched and supported on the inner wall of the polyurethane ring 2; the steering shaft 8 is connected to the lower end of the upper shaft sleeve 9 and the upper end of the lower shaft sleeve 7; and universal steering devices 15 are arranged between the upper end of the steering shaft 8 and the lower end of the upper shaft sleeve 9 and between the lower end of the steering shaft 8 and the upper end of the lower shaft sleeve 7.

The universal steering device 15 comprises a hinge groove 16 and a ball head 17 matched and arranged in the hinge groove 16, a plurality of axial movable grooves 18 are uniformly distributed in the hinge groove 16 in the circumferential direction, a plurality of steel ball grooves 19 are arranged on the ball head 17, the plurality of steel ball grooves 19 correspond to the plurality of axial movable grooves 18 one by one, and steel balls 20 are arranged between the corresponding steel ball grooves 19 and the axial movable grooves 18; the outer end face of the ball head 17 is provided with a steel ball end face groove 21, and a steel ball 20 is arranged between the steel ball end face groove 21 and the inner end face of the hinge groove 16.

The diameter of the steel ball 20 at the position of the steel ball end surface groove 21 is larger than that of the steel ball 20 at the position of the steel ball groove 19.

The elastic part 11 is a spring shaft.

The following description is made on the use principle of the strong-support polyurethane caster with the damping function of the utility model:

the utility model discloses a strong support polyurethane truckle with shock-absorbing function, when using, the bearing is installed to the centre bore 22 of wheel body 1, the bearing is connected with the fixed axle of small handcart, that is to say wheel body 1 takes polyurethane ring 2 to rotate around the axis in step, in this process, gravity all acts on the truckle, polyurethane ring 2 has the trend of inside caving in relative to wheel body 1, at this moment, effort transmits to backup pad 10, then transmits to upper shaft sleeve 9, steering spindle 8, lower shaft sleeve 7 and articulated shaft 6, because articulated shaft 6 has elastic part 11, thus have the cushioning effect to the effort, in addition, in the truckle rolling process, the effort point of effort takes place to move, in order to match this effort point smoothly, and well bear this effort, design into universal steering device 15 between steering spindle 8 and upper shaft sleeve 9, lower shaft sleeve 7 very much, the steel balls 20 in the steel ball grooves 19 and the steel ball end surface grooves 21 share radial force and axial force respectively, and the lower shaft sleeve 7 can slightly move relative to the upper shaft sleeve 9 and can be opposite to acting force matched with different positions; a plurality of damping device 5 support polyurethane ring 2, have improved the holding power greatly to have the cushion effect, noise when reducing the use.

The embodiment of the present invention provides a strong support polyurethane caster with shock absorption function, and the principle and the implementation of the present invention are explained herein by applying specific examples, and the above description of the embodiment is only used to help understand the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A strong support polyurethane caster with shock absorption function, comprising a wheel body and a polyurethane ring, flange plates are respectively provided on both sides of the outer peripheral surface of the wheel body, the polyurethane ring is wrapped on the outer peripheral surface of the wheel body, and the polyurethane The ring is located between the two flange plates, and is characterized in that: there is an interval between the inner wall of the polyurethane ring and the outer peripheral surface of the wheel body, and a number of shock absorbing devices are evenly distributed around the gap in the interval, and the shock absorbing devices include hinged joints. A shaft, a lower shaft sleeve, a steering shaft, an upper shaft sleeve and a support plate, the hinge shaft includes an elastic part and a rigid part arranged at both ends of the elastic part, the hinge shaft is integrally penetrated in the installation hole of the wheel body, The outer peripheral surface of the body is provided with a groove at the position where the elastic part matches; the lower end of the lower sleeve is sleeved on the elastic part, and the lower sleeve can rotate relative to the elastic part around the axis of the elastic part; the upper end of the upper sleeve is the upper surface of the support plate is matched and supported on the inner wall of the polyurethane ring; the steering shaft is connected to the lower end of the upper sleeve and the upper end of the lower sleeve; the upper end of the steering shaft and the lower end of the upper sleeve are connected , A universal steering device is arranged between the lower end of the steering shaft and the upper end of the lower shaft sleeve.

2 . The strong support polyurethane caster with shock absorption function according to claim 1 , wherein the universal steering device comprises a hinge groove and a ball head matched with the hinge groove. 2 . A number of axial movable grooves are evenly distributed around the circumference, a number of steel ball grooves are arranged on the ball head, and a number of steel ball grooves are in one-to-one correspondence with a number of axial movable grooves, and between the corresponding steel ball grooves and the axial movable grooves are provided Steel balls; the outer end surface of the ball head is provided with a steel ball end surface groove, and a steel ball is provided between the steel ball end surface groove and the inner end surface of the hinged groove.

3 . The strong support polyurethane caster with shock absorption function according to claim 2 , wherein the diameter of the steel ball at the groove position of the end face of the steel ball is larger than the diameter of the steel ball at the position of the steel ball groove. 4 .

4 . The strong support polyurethane caster with shock absorption function according to claim 1 , wherein the elastic part is a spring shaft. 5 .