CN112411437A

CN112411437A - Rotary assembly realizing self-rotation and road traffic protection device

Info

Publication number: CN112411437A
Application number: CN202011372935.4A
Authority: CN
Inventors: 许运动; 许恪铭
Original assignee: Anhui Mingxin Metal Products Co ltd
Current assignee: Anhui Mingxin Metal Products Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-02-26

Abstract

The invention discloses a rotating assembly for realizing self-rotation, and belongs to the field of traffic protection equipment. Including rotator, sleeve pipe, pivot and bearing, the sleeve pipe nestification is in the pivot outside, and the sleeve pipe outside nestification has the rotator, be provided with the bearing between pivot and the sleeve pipe, the bearing inner race meets with the pivot, and the bearing inner race meets with the sleeve pipe. When a vehicle collides with the road traffic protective guard, the rotating body on the rotating assembly can realize good self-rotation, so that the vehicle is guided, the damage of the vehicle caused by collision is reduced, and the rotating body can resist aging.

Description

Rotary assembly realizing self-rotation and road traffic protection device

Technical Field

The invention belongs to the field of traffic protection equipment, and particularly relates to a rotating assembly for realizing self-rotation and a road traffic protection device.

Background

With the rapid development of economy, automobiles are commonly used as a convenient vehicle. In China, the speed limits of different roads are different, for example, the speed limit of urban roads is 40 kilometers per hour, the speed limit of ordinary roads is 40-80 kilometers per hour, and the speed limit of expressway is 60-120 kilometers per hour, so most of the traffic accidents in urban areas are rear-end accidents, on the ordinary roads or the expressway, the traffic accidents frequently occur due to the fact that the speed of automobiles is too fast, wherein the most serious is that the automobiles running at high speed collide with guard railings on the roadside or in the middle of the roads, the automobiles are subjected to reverse acting force of the guard railings after collision, the automobiles turn over or reverse to deviate from original lanes, secondary collision is easy to occur with the automobiles running at high speed, the death of multiple automobiles is caused, and the hazard of the accidents is aggravated; when a collision occurs between an automobile and a road traffic protective guard, the rotating body can correspondingly guide and unload the automobile, which is extremely important, and the rotating body is required to rotate timely and timely.

The Chinese patent application numbers are: 201711177852.8, the announcement date is: 2018-05-01, which comprises a bottom plate and a plurality of fence bodies distributed at the top of the bottom plate at equal intervals, wherein adjacent fence bodies are connected through detachable connecting pieces, and each fence body comprises a hollow sleeve and a connecting vertical rod. It passes through the buffer structure who is equipped with on the rail guard, when the car bumps with the rail guard, buffer block in the buffer structure can disperse the impact force that car striking rail guard produced along the circumferencial direction, and absorb most impulsive force by the inside reset spring of buffer block and convert elastic potential energy, make buffer block and dead lever rotatory on the bearing frame, lead to the car out of control, take place danger in order to prevent that the car from rushing out the road surface, the telescopic link that is equipped with through the interior of fence body, the staff can be according to the on-the-spot needs on road surface, the length of utilizing adjusting screw to adjust the telescopic link, so that the rail guard is adjusted to suitable height. When the automobile collides with the traffic safety protective guard, the friction force between the middle buffer block and the connecting ends at the two sides is too large, so that the traffic safety protective guard is not easy to guide the automobile.

The Chinese patent application numbers are: 201922204884.3, the announcement date is: 2020.10.16, its problem to among the prior art rail guard life is short, big to the vehicle secondary injury provides a road traffic protector, and it includes a plurality of base, is provided with the support column on the base, and two adjacent support columns pass through the guardrail board and connect, the guardrail board includes a plurality of U-shaped frame, and two vertical limits in the U-shaped frame all are connected with the support column, are provided with the elasticity rotator through the pivot between two adjacent U-shaped frames, and are provided with supporting stop gear between elasticity rotator and the U-shaped frame. According to the invention, the elastic rotating body is arranged on the protective breast board, so that secondary damage to a vehicle is reduced, and meanwhile, the damage to the protective breast board is reduced; and the supporting and limiting mechanism not only reduces the friction between the elastic rotating body and the protective breast board, but also plays a limiting role on the elastic rotating body, so that the elastic rotating body is prevented from moving and dislocating, and the service life of the whole traffic protective guard is prolonged. It is through increasing rotator and supporting stop gear, and the effectual power of unloading of accomplishing after colliding the vehicle.

The Chinese patent application numbers are: 201922204973.8, the announcement date is: 2020.10.16, the guardrail comprises a guardrail body composed of a plurality of corrugated units, wherein each corrugated unit comprises a peak section and a valley section connected with the peak section through an arc section, the valley section is internally provided with a roller, the roller is internally provided with a rotating shaft, and the two ends of the rotating shaft are fixed on the guardrail body through fastening devices. According to the invention, the rollers are arranged in the valley section of the fence body, so that rigid collision between a vehicle and the protective fence is changed into flexible collision, secondary damage to the vehicle is avoided, meanwhile, damage to the protective fence is reduced, the service life of the protective fence is prolonged, the safety performance of the whole process is increased, and the vehicle can be buffered to a certain extent in the collision process.

Disclosure of Invention

1. Problems to be solved

The invention provides a rotating assembly for realizing self-rotation and a road traffic protection device, aiming at the problems that the friction between a rotating body and an interconnecting part of the conventional road traffic protection fence is large and the rotating is not easy to rotate. When a vehicle collides with the road traffic protective guard, the rotating body on the rotating assembly can realize good self-rotation, so that the vehicle is guided, the damage of the vehicle caused by collision is reduced, and the rotating body can resist aging.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The invention discloses a rotating assembly for realizing self-rotation, which comprises a rotating body, a sleeve, a rotating shaft and a bearing, wherein the sleeve is nested outside the rotating shaft, the rotating body is nested outside the sleeve, the bearing is arranged between the rotating shaft and the sleeve, the inner ring of the bearing is connected with the rotating shaft, and the outer ring of the bearing is connected with the sleeve.

As a further explanation of the invention, the two bearings are respectively arranged at two ends of the sleeve.

As a further description of the invention, the bearing further comprises an end cover, wherein the inner side of the end cover is connected with the rotating shaft, the outer side of the end cover is connected with the sleeve, and the end cover is arranged on the outer side of the bearing.

As a further illustration of the invention, the two ends of the sleeve are provided with first steps, and the outer side of the end cover is placed in the first steps.

As a further illustration of the invention, the end cap is threadably connected to the sleeve.

As a further explanation of the present invention, the rotating shaft is provided with a second step, and the bearing is provided in the second step.

As a further illustration of the invention, the bearings are symmetrically disposed inside the sleeve.

The road traffic protection device comprises the rotating assembly for realizing self-rotation.

3. Advantageous effects

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

(1) according to the rotating assembly for realizing self-rotation, the rotating body is generally made of a foaming material, the surface is rough, and deformation is easy to generate, so that the friction force between the material and an adjacent part is large, rotation is not easy to perform, the sleeve is added into the rotating body, the friction between the rotating body and a rotating shaft is reduced, meanwhile, deformation of a middle cavity of the rotating body is avoided, through the arrangement of the bearing, self-rotation of the rotating body is realized, when a vehicle is in collision contact with the rotating body, due to the arrangement of the bearing and the sleeve, the rotating body can realize easy self-rotation;

(2) according to the rotating assembly for realizing self-rotation, the bearings are arranged at the two ends of the sleeve, so that the bearing is uniformly stressed in the rotating process of the rotating body, and the self-rotation of the rotating body is facilitated;

(3) according to the rotating assembly for realizing self-rotation, the end cover is used for fixing the bearing, the bearing supports the rotating body, the end cover limits the bearing, the rotating body does not need to be connected with a frame of the protective guard, friction force is reduced, and meanwhile, the end cover is arranged, so that the bearing can be conveniently assembled and disassembled, and the rotating body is convenient to install;

(4) according to the rotating assembly for realizing self-rotation, the second step is arranged on the rotating shaft instead of the bearing arranged on the rotating shaft in a fixed mode, the bearing can be conveniently assembled and disassembled in a clamping relation, the first step is arranged on the sleeve, the inner cavity of the rotating body can be sealed by the end cover, on one hand, the bearing is limited, on the other hand, dust is prevented from entering the bearing to influence the use of the bearing, and the same effect is achieved in threaded connection between the end cover and the sleeve.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a rotating assembly for implementing self-rotation according to the present invention;

FIG. 2 is a side view of the structure of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is a schematic view of the entire structure of the rotating shaft.

In the drawings:

1. a rotating body; 2. a sleeve; 21. a first step; 3. a rotating shaft; 31. a second step; 4. a bearing; 5. and (4) end covers.

Detailed Description

The invention is further described with reference to specific examples.

The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration exemplary embodiments in which the invention may be practiced. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to describe the features and characteristics of the invention, to set forth the best mode of carrying out the invention, and to sufficiently enable one skilled in the art to practice the invention. Accordingly, the scope of the invention is to be limited only by the following claims.

The detailed description and exemplary embodiments of the invention will be better understood when read in conjunction with the appended drawings, where the elements and features of the invention are identified by reference numerals.

Example 1

As shown in fig. 1 to 4, a rotating assembly for realizing self-rotation of the present embodiment includes a rotating body 1, a sleeve 2, a rotating shaft 3, a bearing 4, and an end cap 5, where the rotating body 1 directly contacts with a vehicle when the vehicle collides with a guard rail, and is capable of absorbing kinetic energy generated by the vehicle collision and guiding the vehicle by its rotation, so that the vehicle can continuously release the kinetic energy generated by the collision. Rotator 1 generally adopts the foaming material to constitute, the surface is comparatively crude, and produce deformation easily, so frictional force between material and the adjacent part is great, be difficult to rotate, add the sleeve in rotator 1, reduce and the pivot 3 between the friction, avoid 1 middle cavity of rotator to take place to warp simultaneously, the rethread sets up bearing 4, realize the autogyration of rotator 1, when the vehicle and 1 collision contact of rotator, because bearing 4 and telescopic setting, rotator 1 can realize light autogyration. The sleeve 2 is nested in the outer side of the rotating shaft 3, the rotating body 1 is nested in the outer side of the sleeve 2, a bearing 4 is arranged between the rotating shaft 3 and the sleeve 2, the inner ring of the bearing 4 is connected with the rotating shaft 3, and the outer ring of the bearing 4 is connected with the sleeve 2.

Two bearings 4 are respectively arranged at two ends of the sleeve 2, the inner side of the end cover 5 is connected with the rotating shaft 3, and the outer side is connected with the sleeve 2 and arranged at the outer side of the bearings 4. The bearings 4 are arranged at the two ends of the sleeve 2, so that the stress is uniform in the rotating process of the rotating body 1, and the rotating body 1 can rotate automatically; the sleeve 2 is provided with first steps 21 at both ends, and the outer side of the end cover 5 is placed in the first steps 21. The end cover 5 is used for fixing the bearing 4, the bearing 4 supports the rotating body 1, the end cover 5 limits the bearing 4, the rotating body 1 does not need to be connected with a frame of the protective guard, friction force is reduced, and meanwhile the end cover 5 is arranged to conveniently assemble and disassemble the bearing 4, so that the rotating body 1 is convenient to install.

The rotating shaft 3 is provided with a second step 31, and the bearings 4 are arranged in the second step 31 and symmetrically arranged inside the sleeve 2. Set up second step 31 on pivot 3, rather than placing bearing 4 in pivot 3 through fixed mode, the loading and unloading of realization bearing 4 that the block relation can be convenient sets up first step 21 on sleeve pipe 2, can make end cover 5 airtight with the inner chamber of rotator 1, spacing bearing 4 on the one hand, on the other hand avoids in the dust gets into bearing 4, influences the use of bearing 4, threaded connection also plays the same effect between end cover 5 and the sleeve pipe 2.

In the actual use process, the setting position of the bearing 4 is calculated from the end of the rotating body 1 at one end and is 0.1 to 0.2 times the length of the rotating body 1, the rotation of the bearing 4 can be effectively realized at the position, the center of gravity is stable, and the use is facilitated.

Example 2

This embodiment is substantially the same as embodiment 1, except that the sleeve 2 is not provided with the first step 21, and the sleeve 2 and the end cap 5 are connected by a screw.

Example 3

A road traffic guard of the present embodiment includes a rotation component that realizes self-rotation as described in embodiment 1 or embodiment 2.

Example 4

In view of the above problems, the road traffic protection device of this embodiment includes a base body and a cover layer, in which the rotating body 1 includes a cover layer and a base body, the rotating body 1 is generally made of a foam material (such as polyurethane or EVA), the foam material has many pores on the surface after being made, the pores on the surface of the rotating body 1 can adsorb dust in the air, and can increase the contact area with oxygen in the air, and the foam material is easily aged by ultraviolet irradiation, and the aging under ultraviolet is accelerated by the increase of the surface pores, in this embodiment, the rotating body 1 includes a base body and a cover layer, the base body is still a foam material, the cover layer is made of a material with a small porosity, such as plastic, and is used for covering the pores on the surface of the base body, and the ultraviolet aging resistance of the base body is enhanced by adding a nano-silica material and a dispersant to the original foam material, the problems that the surface of the rotating body 1 is large in pores, dust is adsorbed, the contact area of oxygen and a base body is increased, and the aging of the base body under ultraviolet rays is accelerated are solved through the covering layer, and the ultraviolet aging resistance of the base body is improved by additionally adding nano silicon dioxide (which is 1-7% of the total amount of the base body) into a base body material (the basic material composition of the base body refers to CN 107266776A). The polarity of the nano silicon dioxide is larger, so that the nano silicon dioxide is not easy to disperse in a non-polar material, a dispersant is required to be additionally added to improve the dispersion performance of the nano silicon dioxide, the dispersant is selected from modified organic montmorillonite (0.5-3% of the total amount of a matrix material), the montmorillonite is exchanged by alkyl quaternary ammonium salt or other organic cations to generate the organic montmorillonite, the modified organic montmorillonite has lipophilicity and is easy to disperse in an oily solvent, the interlayer spacing of the exchanged montmorillonite is increased, some monomers and polymer melt can enter interlayers, the montmorillonite can be peeled due to the polymerization of the monomers or the action of the melt between the interlayers, and the nano-scale lamella can be uniformly dispersed in the polymer aggregate to form the polymer/sheet silicate nano composite material. By taking materials in CN107266776A as an example, the matrix composition of the material is 10-20% of ethylene-octene copolymer (POE), 40-60% of EVA, 10-20% of ethylene propylene diene rubber, 5-10% of anti-shrinkage agent, 1-3% of filler, 0.6-1.6% of dispersing lubricant, 1-2% of zinc oxide, 0.7-1.2% of cross-linking agent, 1.5-2.5% of foaming agent, 1.5-2.5% of flowing agent and 2-4% of color master pigment, 1-7% of nano silicon dioxide and 0.5-3% of modified organic montmorillonite are added on the basis of the original materials, taking example 1 in CN107266776A as an example, the matrix material is: 15% of ethylene-octene copolymer (POE), 50% of EVA, 15% of ethylene propylene diene monomer, 20-587.5% of antishrinking agent E, 2% of talcum powder with the particle size less than or equal to 200nm, 0.3% of stearic acid, 0.7% of zinc stearate, 1.5% of zinc oxide, 1% of dicumyl peroxide DCP, 2% of azodicarbonamide AC foaming agent, 2% of fatty acid ester and 3% of color master pigment, 1% of silicon dioxide of the total amount and 0.5% of organically modified montmorillonite are added on the basis of the above components, and the preparation method of the composition is carried out according to the preparation method of. Taking example 2 in CN107266776A as an example, the materials of the matrix are: 10% of ethylene-octene copolymer (POE), 60% of EVA, 10% of ethylene propylene diene monomer, 20-585% of antishrinking agent, 2% of talcum powder with the particle size of less than or equal to 200nm, 1% of calcium carbonate with the particle size of less than or equal to 200nm, 0.5% of stearic acid, 1% of calcium stearate, 2% of zinc oxide, 0.7% of dicumyl peroxide (DCP), 1.8% of Azodicarbonamide (AC) foaming agent, 2% of fatty acid ester and 4% of color master pigment, wherein on the basis of the above, 7% of silicon dioxide and 2.5% of organically modified montmorillonite are added, and the preparation method is carried.

Taking example 3 in CN107266776A as an example, the materials of the matrix are: ethylene-octene copolymer (POE) 20%, EVA 40%, ethylene propylene diene monomer (epdm) 20%, antishrinking agent E20-5810%, talc powder 1%, calcium carbonate 1%, stearic acid 0.3%, zinc stearate 0.3%, zinc oxide 1.2%, dicumyl peroxide (DCP) 0.7%, Azodicarbonamide (AC) foaming agent 2%, fatty acid ester 1.5%, and color master pigment 2%, to which silica 6% of the total amount was added and organic modified montmorillonite 3% was added, and prepared according to the preparation method of example 3.

Example 5

On the basis of the embodiments 1 to 3, the rotating body 1 of the road traffic protection device of the embodiment comprises a covering layer and a substrate, wherein the covering layer is coated on the surface by using a coating mixed by waterborne polyurethane, nano silicon dioxide and modified organic montmorillonite, and the substrate is made of a common foaming material. By utilizing the ultraviolet resistance of the nano-silica, the modified organic montmorillonite changes the dispersibility of the nano-silica, promotes the further dispersion of the nano-silica under the matrix condition of the aqueous polyurethane, and improves the aging resistance of the rotator 1.

The above examples illustrate the invention and its embodiments, without limitation. It should be noted that those skilled in the art should also understand that they can design the similar structural modes and embodiments without departing from the spirit of the invention, and they should also fall into the protection scope of the invention.

Claims

1. A rotating assembly for effecting self-rotation, comprising: including rotator (1), sleeve pipe (2), pivot (3) and bearing (4), sleeve pipe (2) nestification is in the pivot (3) outside, and sleeve pipe (2) outside nestification has rotator (1), be provided with bearing (4) between pivot (3) and sleeve pipe (2), bearing (4) inner circle meets with pivot (3), and bearing (4) outer lane meets with sleeve pipe (2), rotator (1) includes overburden and base member, the overburden covers on the base member surface.

2. A spin-enabled rotary component as claimed in claim 1, wherein: the two bearings (4) are respectively arranged at two ends of the sleeve (2).

3. A spin-enabled rotary component as claimed in claim 1, wherein: the bearing is characterized by further comprising an end cover (5), wherein the inner side of the end cover (5) is connected with the rotating shaft (3), the outer side of the end cover is connected with the sleeve (2), and the end cover is arranged on the outer side of the bearing (4).

4. A spin-enabled rotary component as claimed in claim 3, wherein: the two ends of the sleeve (2) are provided with first steps (21), and the outer side of the end cover (5) is arranged in the first steps (21).

5. A spin-enabled rotary component as claimed in claim 3, wherein: the end cover (5) is in threaded connection with the sleeve (2).

6. A spin-enabled rotary component as claimed in claim 1, wherein: the rotating shaft (3) is provided with a second step (31), and the bearing (4) is arranged in the second step (31).

7. A spin-enabled rotary component as claimed in claim 6, wherein: the bearings (4) are symmetrically arranged on the inner side of the sleeve (2).

8. A road traffic protector which characterized in that: a spin-enabled rotating assembly comprising any one of claims 1-7.