CN110816162B

CN110816162B - Roller assembly and application method thereof

Info

Publication number: CN110816162B
Application number: CN201911135176.7A
Authority: CN
Inventors: 程钢; 张涵; 王忠雷; 李兆东; 王芳
Original assignee: Shandong Jianzhu University
Current assignee: Shandong Jianzhu University
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2023-04-25
Anticipated expiration: 2039-11-19
Also published as: CN110816162A

Abstract

The invention discloses a roller assembly and a use method thereof, wherein the roller assembly comprises a wheel shaft, a roller, a first cylindrical part and a pin shaft, the center of the roller is vertically connected with the wheel shaft, one end of the first cylindrical part is provided with a first end cover, and the other end of the first cylindrical part is also connected with a second end cover; the axle passes through and is rotationally connected with the first end cover to enter the first barrel-shaped piece, the axle positioned in the first barrel-shaped piece is provided with a groove, the pin shaft is connected with the first barrel-shaped piece through the elastic piece, and the pin shaft can pass through the side wall of the first barrel-shaped piece to be abutted with the groove of the axle. The invention can solve the problem that the movable instrument can automatically lock the wheels in the horizontal placement and use state and can flexibly move during carrying.

Description

Roller assembly and application method thereof

Technical Field

The invention relates to the field of axles, in particular to a roller assembly and a using method thereof.

Background

With the rapid progress and development of modern industry and logistics industry, the use of casters is becoming wider and wider. Prior art mobile bases for suitcases, work benches, seats, carts or mobile instruments, the rollers on transfer comprise a single roller and double-sided rollers. Not only can be used in large shopping supermarkets, logistics sorting platforms, production factories, airports, warehouses and the like, but also can be increasingly applied to families.

However, the inventor considers that the existing casters are basically directly installed on the required products which move frequently for use, and the casters are also provided with a braking device independently, so that the use is excessively cumbersome and troublesome, but if a braking system is not used, the equipment provided with the casters can easily move without external force fixation, and accidents can easily happen when people carelessly use the equipment.

Disclosure of Invention

Aiming at the defect of complicated braking system of the existing roller assembly, the invention aims to provide the roller assembly which is combined with a braking mechanism so as to solve the problem that a movable instrument can automatically lock wheels in a horizontal placement and use state and can flexibly move during carrying.

The invention aims to provide a roller assembly.

In order to achieve the above purpose, the present invention discloses the following technical solutions:

the invention discloses a roller assembly, which comprises a wheel shaft, a roller, a first cylindrical piece and a pin shaft, wherein the center of the roller is vertically connected with the wheel shaft, one end of the first cylindrical piece is provided with a first end cover, and the other end of the first cylindrical piece is also connected with a second end cover; the axle passes through and is rotationally connected with the first end cover to enter the first barrel-shaped piece, the axle positioned in the first barrel-shaped piece is provided with a groove, the pin shaft is connected with the first barrel-shaped piece through the elastic piece, and the pin shaft can pass through the side wall of the first barrel-shaped piece to be abutted with the groove of the axle.

Further, the inner side of the first cylindrical member is connected to the wheel shaft through a bearing.

Further, the outer side of the first cylindrical piece is also sleeved with a second cylindrical piece.

Further, an axle positioned on the cylindrical part is connected with the cylindrical part through a first bearing and a second bearing; the surface of the axle between the first bearing and the second bearing has grooves.

Further, the groove is disposed around a surface of the axle.

Further, the first bearing is abutted against the first end cap and the second bearing is abutted against the second end cap.

Further, the first end of the pin shaft is hemispherical, and the second end of the pin shaft is conical.

Further, the elastic piece is a spring, the spring is sleeved on the pin shaft, and two ends of the spring are respectively connected with the pin shaft and the first cylindrical piece.

Further, the side wall of the first cylindrical part is provided with a flange, and the pin shaft can pass through the flange; the spring is connected with the first cylindrical part through a flange.

The invention further discloses a using method of the roller assembly, which is characterized by comprising the following steps of:

connecting an object to be moved by using a second barrel;

when an object to be moved moves, one side of the object to be moved is lifted, the spring supports the pin shaft to enable the first end of the pin shaft to be far away from the ground, the second end of the pin shaft is separated from the groove of the wheel shaft, the wheel shaft is not in a braking state any more, and the roller can roll, so that the object to be moved can be pushed to move;

when an object to be moved is placed horizontally, the first end of the pin shaft is in contact with the ground, the pin shaft moves inwards under the action of ground extrusion, the spring is compressed, the second end of the pin shaft is embedded into the groove of the wheel shaft, the wheel shaft cannot rotate, the roller is braked, and the object to be moved can be placed on the ground stably.

Compared with the prior art, the invention has the following beneficial effects:

(1) In the invention, the braking of the roller is carried out in a non-clamping type braking mode, specifically, the pin shaft and the groove are matched to prevent the rotation of the wheel shaft, so that the roller is braked, and compared with a traditional clamping type braking device, the braking device disclosed by the invention does not need to use an extra transmission piece to convert external power into clamping force of the clamping type braking device, and the braking device is simplified fully according to the use condition.

(2) The invention aims at the braking situation that the roller is needed to assist in movement, so that the requirement on acceleration is low, and the requirement on the connection strength of the pin shaft and the groove is low because the invention aims at the situation that the acceleration is low, and the conical end of the pin shaft is matched with the groove, so that a good matching effect can be obtained under the low connection strength.

(3) In the invention, the two ends of the first cylindrical part are connected with the end covers, so that the first cylindrical part is relatively closed, and the groove structure and the bearing in the first cylindrical part are protected.

(4) In the invention, the spring is used for providing power for the reciprocating motion of the pin shaft, and the energy stored by the spring is from the rolling of the roller, so that no additional energy source is needed to be provided for driving the device disclosed by the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.

Figure 1 is an internal schematic diagram of example 1,

figure 2 is an external elevation view of embodiment 1,

fig. 3 is a schematic view of a roller assembly connection apparatus in embodiment 2.

In the figure, 1, a wheel shaft, 2, a roller, 3, a first end cover, 4, a screw for fixing the end cover, 5, a first bearing, 6, a toothed groove structure, 7, a first cylindrical piece, 8, a second end cover, 9, a second cylindrical piece, 10, a spring, 11, a screw for fixing a flange, 12, a pin shaft, 13, a flange, 14 and a fastening bolt.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention, and furthermore, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

As described in the background art, the present invention aims to provide a roller assembly, which is combined with a braking mechanism to solve the problem that a movable instrument can automatically lock a wheel in a horizontal placement and use state and can flexibly move when being carried, and the present invention is further described with reference to the accompanying drawings and the specific embodiments.

Example 1

Referring to fig. 1 and 2, the present embodiment discloses a roller 2 assembly, which includes a wheel shaft 1, a roller 2, a first cylindrical member 7, a second cylindrical member 9 and a pin shaft 12, wherein the center of the roller 2 is vertically connected with the wheel shaft 1, one end of the first cylindrical member 7 is provided with a first end cover 3, and the other end of the first cylindrical member 7 is also connected with a second end cover 8; the wheel axle 1 passes through and is rotationally connected with the first end cover 3 to enter the first barrel 7, the wheel axle 1 positioned in the first barrel 7 is provided with a groove, the pin shaft 12 is connected with the first barrel 7 through an elastic piece, and the pin shaft 12 can pass through the side wall of the first barrel 7 to be abutted with the groove of the wheel axle 1.

Firstly, it should be noted that the roller 2 assembly in this embodiment is a roller 2 widely used at present, the structure is not described herein, it has a roller shaft 1, the connection mode of the roller shaft 1 and the roller 2 is a fixed connection, the roller shaft 1 can rotate along with the rolling of the roller 2, in this field, the connection of this form is generally realized through a connecting piece or electric welding connection, in this embodiment, the roller shaft 1 and the roller 2 are fixedly connected by threads, specifically, one end of the outer side of the roller shaft 1 is provided with a threaded hole, the roller shaft 1 is connected with the roller 2 at the outer side thereof, the roller shaft 1 and the roller 2 are fixedly connected by bolts, and the bolts are inserted into the threaded holes.

Referring to fig. 1, an axle 1 in the present embodiment is cylindrical or prismatic, and the axle 1 is provided with two rolling bearings, namely a first bearing 5 and a second bearing; the wheel axle 1 between the two bearing mounting positions is provided with grooves symmetrically distributed with the central axis of the wheel axle 1 as the axis center, so as to form a toothed groove structure 6.

In this embodiment, the wheel axle 1 is braked by the toothed groove structure 6.

It will be appreciated that the first barrel 7 in this embodiment is in fact closed with end caps attached by screws to both ends of the first barrel 7, the end caps being capable of closing the first barrel 7 in order to maintain cleanliness within the first barrel 7.

Correspondingly, the toothed groove structure 6 of the axle 1 is located in the first barrel 7, and it will be appreciated that in this embodiment a first bearing 5 and a second bearing are used to connect the axle 1 and the first barrel 7, the first bearing 5 being in close contact with the first end cap 3, the second bearing being in close contact with the second end cap 8, the first bearing 5 being correspondingly located inside the first end cap 3, and the second bearing being correspondingly located inside the second end cap 8.

The first end cover 3 and the second end cover 8 are provided with central holes for installing the wheel axle 1 and the bearing; the first cylindrical member 7 has a threaded hole or through-hole on the circumferential side for mounting a flange 13, and the flange 13 is used for mounting the pin 12 and the spring 10. The outer side end of the pin shaft 12, namely the first end of the pin shaft 12 is hemispherical, the middle section of the pin shaft 12 is provided with a flange, the inner side end of the pin shaft 12, namely the second end of the pin shaft 12 is conical, the spring 10 is sleeved on the pin shaft 12, the flange 13 can prop against the flange of the pin shaft 12, the pin shaft 12 can move back and forth in the side hole of the base, and the spring 10 can provide elasticity to reset the pin shaft 12. Through holes are formed in corresponding positions on the circumferential side of the bracket, and the flange 13 is fixed on the base through screws.

Example 2

The embodiment discloses a method for using a roller 2 assembly disclosed in embodiment 1, which comprises the following steps:

connecting an object to be moved by using a second barrel;

when an object to be moved is placed horizontally, the first end of the pin shaft is in contact with the ground, the pin shaft moves inwards under the action of ground extrusion, the spring is compressed, the second end of the pin shaft is embedded into the groove of the wheel shaft, the wheel shaft cannot rotate, the roller is braked, and the object to be moved can be placed on the ground stably. .

Referring to fig. 3, taking an experimental apparatus as an example, when the apparatus is placed horizontally, the second cylindrical member 9 is also horizontal, the first end of the pin shaft 12 contacts with the ground, the pin shaft 12 moves inwards under the extrusion action of the ground, the spring 10 is compressed, the conical end of the pin shaft 12 is embedded into the tooth slot of the axle 1, so that the axle 1 cannot rotate, the roller 2 is braked, and the apparatus can be placed on the ground stably;

when the instrument device needs to be moved to other positions, the other side of the instrument device can be lifted, at the moment, the semi-spherical end of the pin shaft 12 is not contacted with the ground any more, the spring 10 can provide elastic force to reset the pin shaft 12, the conical end of the pin shaft 12 is separated from the tooth socket of the wheel shaft 1, the wheel shaft 1 can rotate, and the roller 2 can roll, so that the instrument device can be pushed to move.

It should be noted that, in order to facilitate the movement, the first end of the pin 12 can be contacted with the ground through the pad, and after the pad is removed, the pin 12 will not interfere with the normal operation of the roller 2 when in a normal state.

Accordingly, the length of the pin 12 and the state of the spring 10 can be changed by those skilled in the art according to actual use conditions.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The use method of the roller assembly comprises a wheel shaft, a roller, a first cylindrical part and a pin shaft, wherein the center of the roller is vertically connected with the wheel shaft, one end of the first cylindrical part is provided with a first end cover, and the other end of the first cylindrical part is also connected with a second end cover;

the inner side of the first cylindrical part is connected with the wheel shaft through a bearing; the outer side of the first cylindrical part is also sleeved with a second cylindrical part;

the wheel shaft positioned on the cylindrical part is connected with the cylindrical part through a first bearing and a second bearing; the surface of the wheel axle between the first bearing and the second bearing is provided with a groove;

the groove is arranged around the surface of the wheel shaft;

the first bearing is abutted against the first end cover, and the second bearing is abutted against the second end cover;

the first end of the pin shaft is hemispherical, and the second end of the pin shaft is conical;

the elastic piece is a spring, the spring is sleeved on the pin shaft, and two ends of the spring are respectively connected with the pin shaft and the first cylindrical piece;

the method comprises the following steps:

connecting an object to be moved by using a second barrel;

when an object to be moved needs to be moved, lifting one side of the object to be moved, supporting the pin shaft by the spring to enable the first end of the pin shaft to be far away from the ground, enabling the second end of the pin shaft to be separated from the groove of the wheel shaft, enabling the wheel shaft not to be in a braking state any more, enabling the roller to roll, and pushing the object to be moved to move;

when an object to be moved is placed horizontally, the first end of the pin shaft is in contact with the ground, the pin shaft moves inwards under the action of ground extrusion, the spring is compressed, the second end of the pin shaft is embedded into the groove of the wheel shaft, and the wheel shaft cannot rotate, so that the roller is braked, and the object to be moved can be placed on the ground stably;

the cooperation between round pin axle and the recess can prevent the rotation of shaft, plays the effect of braking to the gyro wheel, uses the spring to provide power for the reciprocating motion of round pin axle, and the energy that the spring stored comes from the roll of gyro wheel, does not need to provide extra energy to drive.

2. The method of claim 1, wherein the sidewall of the first barrel is fitted with a flange through which the pin can pass; the spring is connected with the first cylindrical part through a flange.