CN105178224B - Road and bridge collision avoidance protective device - Google Patents

Abstract

The invention provides a road and bridge collision avoidance protective device. The whole road and bridge collision avoidance protective device is arranged on the collision avoidance side face of a road body or a bridge body, the road and bridge collision avoidance protective device comprises multiple elastic plates and springs, the multiple elastic plates are arranged on the road body or the bridge body at intervals, and the two ends of each spring connect the two adjacent elastic plates; the road and bridge collision avoidance protective device comprises a reinforcing partition rib which is connected with the road body or the bridge body and the elastic plates simultaneously; the reinforcing partition rib is of a T-shaped structure and comprises a main part and multiple branch parts, the main part is fixedly connected with the road body or the bridge body, and the branch parts are connected with the elastic plates; the branch parts are detachably connected with the main part; the plane where the plate faces of the elastic plate are located is an inclined plane in the vertical direction or non-vertical direction; the plate pace of each elastic plate is of a curved surface structure; the springs can be in a compressed state or a stretching state; the branch parts are made of specially-made spring steel. By means of the road and bridge collision avoidance protective device, stress in the collision process can be controlled, the comprehensive performance of the device can be improved through the specially-made spring steel, damage to vehicles, the roads and the bridges in the collision process can be reduced, and people and articles are protected.

Description

A kind of road and bridge anti-collision protection device

Technical field

The present invention relates to road and bridge protection field, and in particular to a kind of to answer for playing during being clashed into road and bridge The device of anxious protection.

Background technology

Extremely quickly current in development of automobile, as road is got on the car progressively the increasing of quantity, there is accident and also get in vehicle Come more, as a rule particularly during vehicle is in and runs at high speed, once there is accident, vehicle can all be place In state out of control, inevitably the crash barrier or anti-collision wall of road and bridge are carried out clashing into and then wound is caused to people and thing Evil, in the case, how the injury of people and thing to be preferably minimized, except drive vehicle people in addition to, occur accident when Wait, desirably the anti-collision facility of road and bridge can play more positive protective effect.

In existing road and bridge anticollision device, collision-prevention device, more allowed for making road and bridge itself will not suffer it is serious destroy, or Be reminder flag constantly to be arranged in the appropriate location of road and bridge to reduce the incidence rate of accident, or even occur to clash in vehicle and road and bridge During, it is impossible to play any protective effect.It can be appreciated that existing anticollision dress from existing disclosed patented technology Putting substantially makes have certain buffering in knockout process using cushion, but the degree of its buffering is extremely limited, and Certain effective regulation can not be carried out to its stress when clashing into stress so that the infringement that shock is caused is reduced to minimum journey Degree.The present inventor thinks, in the process kind that accident occurs, preferably protection how is played to people and thing, particularly right Personnel and the protection of vehicle, for reduce accident impact more effectively.Additionally, how to improve the comprehensive of elastic metallic material Can, the particularly combination property of the metal material in road and bridge preventer, and technician problem to be solved.

The content of the invention

Present invention aim to address when vehicle and road and bridge occurring to clash into, carrying out effective protection to people and thing and asking A kind of topic, there is provided road and bridge anti-collision protection device, the device can make the stress in knockout process adjusted and control, using the dress Putting can effectively reduce the damage of vehicle and road and bridge in knockout process, and people and thing are protected.

The purpose of the present invention is realized by following technical proposal：

A kind of road and bridge anti-collision protection device, is integrally provided in the anticollision side of road and bridge body, including elastic plate and spring, institute It is polylith to state elastic plate, is disposed on road and bridge body, and the two ends of the spring connect adjacent two pieces of elastic plates.

In further scheme, including muscle is strengthened, the reinforcement muscle is connected with road and bridge body and elastic plate simultaneously.

In further scheme, the muscle of strengthening is for T-shaped structure, including trunk portion and Duo Gen branchs part, wherein Trunk portion is fixedly connected with road and bridge body, and branch part is connected with elastic plate.

In further scheme, the branch part is detachably connected with trunk portion.

In further scheme, the plane that the plate face of the elastic plate is located is vertical direction, or the elastic plate Inclined plane of the plane that plate face is located for non-vertical direction.

In further scheme, the plate face of the elastic plate is curved-surface structure.

In further scheme, the spring is in extended state, or state of the spring in being compressed.

In further scheme, the branch part is made with special spring steel, the component of the special spring steel Count by weight percentage（Following % represents percentage by weight）For carbon 0.45% ~ 0.55%, silicon 1.6% ~ 1.8%, manganese 0.65% ~ 0.75%th, chromium 0.65% ~ 0.85%, vanadium 0.11% ~ 0.14%, titanium 0.021% ~ 0.030%, nickel 0.15% ~ 0.25%, phosphorus≤0.015%, sulfur ≤ 0.015%, molybdenum 0.1% ~ 0.6%, nitrogen 0.004% ~ 0.02%, aluminum 0.01% ~ 0.1%, balance of ferrum.

In further scheme, the special spring steel is realized using following steps：

After being refined steel and forged and terminate in certain alloying element ratio, it is heated to 870 DEG C and is quenched；

After the completion of step 1, steel quenching, 400 ~ 450 DEG C of average temperings are carried out at once, and is incubated 70 ~ 90min；

After step 2, insulation terminate, rapid cooling is carried out；

After step 3, rapid cooling, bead is finally carried out.

From the present invention architectural feature can be seen that it is an advantage of the current invention that：Take into full account When its impulsive force size being subject to direction, mainly control it so as to which the power finally born will not be formed greatly Destruction.The present invention is arranged by the direction to elastic plate so as to which plate face is in vertical direction or incline direction, and its plate face is hung down It is straight to incline certain angle in the direction of vehicle traveling or suitable vehicle heading, make vehicle shape when contact being clashed into which Into be face contact, reduce stress；Elastic plate is connected by spring simultaneously, makes between elastic plate, to be interconnected to form buffering Band, when one piece of elastic plate is struck, adjacent elastic plate can play the effect of interaction, slow down impulsive force Also elastic plate impact resistance is caused to get a promotion simultaneously；Elastic plate is it can also be provided that the structure of curved surface, makes impact form face The torque resistant and impact resistance of contact and elastic plate itself is all strengthened；In addition, the structure of the reinforcement muscle of the present invention sets Put, on the one hand enhance the bonding strength between elastic plate and road and bridge body, on the other hand, trunk portion can with branch part Dismounting connected mode also causes which to be easier maintenance and installation；For the setting of spring, which mainly plays connection elastic plate and makes respectively Collaboration buffering between individual elastic plate, plays a part of more preferably buffering, meanwhile, in different sections, it is contemplated that accident rate Difference and the different conditions and the maximum shock dynamics being likely to result in of vehicle traveling, can make spring be maintained at compression in advance Or the state of stretching, when generation is clashed into, spring can play larger cushioning effect the very first time.

In order to further improve the shock-absorbing capacity and service life of the present invention, the special spring steel of the present invention compares existing bullet Spring steel has following beneficial effect：

（1）Higher elastic limit and yield limit, it is ensured that have sufficiently high elastic deformability；

（2）Higher fatigue limit, by the alloying element ratio for changing spring steel, can be effectively increased the use of spring steel Life-span；

（3）With good plasticity and toughness, be more convenient for machine-shaping and the load that withstands shocks；

（4）More excellent thermostability, wearability and corrosion resistance, strengthen adaptability of the spring steel to environment, and prolongation makes Use the life-span；

（5）Tensile strength can reach more than 1750MPa, and yield strength can reach more than 1550MPa, hardness reach HRC52 ~ 55, fatigue limit reaches more than 2,000,000 times.

Description of the drawings

The present invention will be illustrated by embodiment and with reference to the appended drawing, wherein：

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the structural representation that the present invention strengthens muscle.

Wherein reference：1 is road and bridge body, and 2 is elastic plate, and 3 is spring, and 4 is trunk portion, and 5 is branch part.

Specific embodiment

The present invention is described further below in conjunction with the accompanying drawings.

As shown in figure 1, present configuration is set to：Elastic plate 2 is installed on road and bridge body 1, elastic plate 2 itself has one Fixed shock-absorbing capacity, 2 interval setting of elastic plate are simultaneously linked together by spring 3, when one of 2 stress of elastic plate, are led to Cross the stretching and compression of spring 3（That is the spring of connecting plate one end is stretched, and is compressed while the other end）And elastic plate 2 Impulsive force effectively can be preferably minimized by the shock-absorbing capacity of body.

Compression and stretching in view of spring 3 needs a certain distance and time, some accidents easily send out section or Run at high speed section and be possible to produce greater impact power section, which can be on the basis of above-mentioned technical proposal, by bullet Spring 3 when installing just is compressed in advance and stretches, and while with reference to spring holding capacity itself, road and bridge body is resisted Impulsive force is preset or maximized reinforcement can be obtained within span of control.

In addition, elastic plate 2 can be typically vertically arranged on road and bridge body 1, an elongated buffer strip is formed, in reality During installation, the mode which can be made vertical with vehicle heading, or have certain towards the direction of vehicle traveling Incline, when the angle of inclination of all directions can occur according to actual road conditions or anticipation accident, the general angle of Vehicular impact is entered Row design, enables vehicle rapidly to be buffered when clashing into and obtain continuous buffer capacity along buffer strip.

In order to lift the buffering or shock resistance of elastic plate itself, elastic plate 2 can be set to curved surface by us Structure, curved-surface structure can lift the shock resistance of whole device, and the structure of curved surface while elastic plate 2 itself is protected The sections such as various different road conditions, such as bend, abrupt slope are suitable for, curved-surface structure is place when can effectively ensure that Vehicular impact Can carry out unloading power along the direction of curved surface direction in the contact in face, i.e. vehicle, and being capable of the direction of controling power makes the power of shock inclined Move, reduce the damage to vehicle and road and bridge.

It is primarily for considering to installing and keeping in repair, of the invention that reinforcement muscle is set to into T-shaped structure, as shown in Fig. 2 its bag Trunk portion 4 and branch part 5 are included, and branch part 5 and trunk portion 4 are dismountable connected modes, branch part 5 is Link together with elastic plate 2, usually as elastic plate 2, all adopt the resilient material of tool to make, during installation, only Need to connect branch part 5 and trunk portion 4.In addition, the adaptation of the direction and curved-surface structure of elastic plate 2 is installed, The setting of the direction and structure of branch part 5 can be passed through so as to coordinated with elastic plate 2.

In order to further improve the shock-absorbing capacity and service life of the present invention, need to be improved existing spring steel, More excellent performance is reached, is, up to this purpose, need to start with terms of steel material itself, change or add alloying element in steel Ratio can greatly improve the combination property of steel.Its alloying element is analyzed, impact of the carbon to steel plays a leading role, although carbon itself is not With intensity and hardness, but the carbide in solid solution as ferrum, and carbon is the primary control element of intensity and hardness, in steel Manganese addition is the quenching degree that steel is improved for the tensile strength for improving steel, toughness and processing characteristics；The Main Function of silicon is to resist steel Oxidisability is improved, and silicon is combined with manganese can improve quenching degree, intensity and impact flexibility, can improve bullet after particularly quenched, tempering The yield limit and elastic limit of spring steel；The Main Function of chromium is the hardness and intensity for improving steel.In order to further improve spring The combination property of steel, while making spring steel low alloying again, changes impact of the Technology for Heating Processing to spring Steel Properties less, is This, is also added into two kinds of alloying elements of vanadium titanium in this spring steel, general spring steel is free from or the vanadium titanium containing denier. Main Function of the vanadium in steel is crystal grain thinning, suppresses austenite to grow up, improves the quenching degree of steel, intensity and and toughness.Vanadium is solid Have Grain refinement in being dissolved in ferritic steel, it is favourable to low-temperature impact toughness, the vanadium carbide of formation be in metal carbides most Firmly, it is most wear-resisting, the service life of spring steel can be improved, by tiny vanadium carbide crystal grain Dispersed precipitate, the compacted of steel can be improved Become and creep rupture strength, but the chromium in vanadium not portion is exhausted, and the crystal boundary loss for causing, promote precipitation-hardening, improve the toughness of steel, subtract The effect of few intercrystalline corrosion, improves the non-oxidizability and heat resistance of spring steel, and the Main Function of titanium is to prevent to form austenite, The carbide because chromium is generated in crystal boundary is prevented, is finally that steel has very high fatigue strength and elastic strength, excellent is corrosion-resistant Property and wearability, combination property is good, can fully meet in easily erosion and bear suddenly the occasion compared with high impact loads.

In order to further improve the fatigue strength and service life of this spring steel, it is also performed to after heat treatment is fully completed Bead, on the surface of the steel, cut, where the surface defect such as folding, oxidation and decarbonization often becomes stress concentration and Fatigue fracture source, therefore, if spraying spring steel surface with tiny shot at a high speed, spring steel surface quality not only can be improved, Surface strength is improved, and surface is also made in compressive stress state, so as to improve spring fatigue intensity and service life.

One embodiment of the special spring steel of the present invention, the component of special spring steel is count by weight percentage（Following % Percentage by weight is represented）For carbon 0.45%, silicon 1.6%, manganese 0.75%, chromium 0.65%, vanadium 0.11%, titanium 0.030%, nickel 0.25%, phosphorus ≤ 0.015%, sulfur≤0.015%, molybdenum 0.1%, nitrogen 0.004%, aluminum 0.01%, balance of ferrum, implementation step is：

Step 1, steel is refined and is forged and terminate in above-mentioned alloying element ratio after, be heated to 870 DEG C and quenched；

After the completion of step 2, steel quenching, 400 ~ 450 DEG C of average temperings are carried out at once, and is incubated 70 ~ 90min；

After step 3, insulation terminate, rapid cooling is carried out；

After step 4, rapid cooling, bead is finally carried out.

By the spring steel combination property of this component composition compared with 50CrVA steel, tensile strength reaches 1562MPa, and surrender is strong Degree reaches 1453MPa, possesses excellent combination property.

Second embodiment of the special spring steel of the present invention, the component of special spring steel is count by weight percentage（With Lower % represents percentage by weight）For carbon 0.55%, silicon 1.73%, manganese 0.65%, chromium 0.85%, vanadium 0.14%, titanium 0.021%, nickel 0.15%th, phosphorus≤0.015%, sulfur≤0.015%, molybdenum 0.6%, nitrogen 0.02%, aluminum 0.1%, balance of ferrum, implementation step is：

Step 1, steel is refined and is forged and terminate in above-mentioned alloying element ratio after, be heated to 870 DEG C and quenched；

After the completion of step 2, steel quenching, 400 ~ 450 DEG C of average temperings are carried out at once, and is incubated 70 ~ 90min；

After step 3, insulation terminate, rapid cooling is carried out；

After step 4, rapid cooling, bead is finally carried out.

By the spring steel combination property of this component composition compared with 60Si2MnA steel, tensile strength reaches 1619MPa, surrender Intensity reaches 1498MPa, higher consistency and elasticity, and wearability and corrosion resistance are more excellent.

3rd embodiment of the special spring steel of the present invention, the component of special spring steel is count by weight percentage（With Lower % represents percentage by weight）For carbon 0.52%, silicon 1.8%, manganese 0.71%, chromium 0.74%, vanadium 0.14%, titanium 0.021%, phosphorus≤ 0.015%th, sulfur≤0.015%, nickel 0.23%, molybdenum 0.33%, nitrogen 0.017%, aluminum 0.08%, balance of ferrum, implementation step is：

Step 1, steel is refined and is forged and terminate in above-mentioned alloying element ratio after, be heated to 870 DEG C and quenched；

After the completion of step 2, steel quenching, 400 ~ 450 DEG C of average temperings are carried out at once, and is incubated 70 ~ 90min；

After step 3, insulation terminate, rapid cooling is carried out；

After step 4, rapid cooling, bead is finally carried out.

By the spring steel combination property of this component composition compared with 60Si2CrA steel, hardness reaches HRC53, and tensile strength reaches To 1811MPa, yield strength reaches 1623MPa, and fatigue strength reaches more than 2,000,000 times, and corrosion resistance is slightly higher, and elastic strength is more It is good.

4th embodiment of the special spring steel of the present invention, the component of special spring steel is count by weight percentage（With Lower % represents percentage by weight）For carbon 0.52%, silicon 1.8%, manganese 0.75%, chromium 0.74%, vanadium 0.13%, titanium 0.026%, phosphorus≤ 0.015%th, sulfur≤0.015%, nickel 0.25%, molybdenum 0.1%, nitrogen 0.017%, aluminum 0.1%, balance of ferrum, implementation step is：

Step 1, steel is refined and is forged and terminate in above-mentioned alloying element ratio after, be heated to 870 DEG C and quenched；

After the completion of step 2, steel quenching, 400 ~ 450 DEG C of average temperings are carried out at once, and is incubated 70 ~ 90min；

After step 3, insulation terminate, rapid cooling is carried out；

After step 4, rapid cooling, bead is finally carried out.

By the spring steel combination property of this component composition compared with 60Si2CrVA steel, hardness reaches HRC55, fatigue strength Reach more than 2,000,000 times, corrosion resistance is slightly higher, and elastic strength is more preferable.

To sum up, the branch part being fabricated to this spring steel, with higher elastic limit, yield limit and tired pole Limit, increased the service life of branch part, additionally, also having good plasticity, toughness, wearability and corrosion resistance, strengthen Adaptability of the branch part to environment, increases the service life.

All features disclosed in this specification, in addition to mutually exclusive feature, can be combined by any way.

This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically is chatted State, can be replaced by other equivalent or alternative features with similar purpose.I.e., unless specifically stated otherwise, each feature It is an example in a series of equivalent or similar characteristics.

Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims (6)

1. a kind of road and bridge anti-collision protection device, is integrally provided in road and bridge body（1）Anticollision side, including elastic plate（2）, strengthen Muscle and spring（3）, it is characterised in that：The elastic plate（2）For polylith, road and bridge body is disposed on（1）On, the spring （3）Two ends connect adjacent two pieces of elastic plates（2）, the reinforcement muscle simultaneously with road and bridge body（1）And elastic plate（2）Connection, The muscle of strengthening is for T-shaped structure, including trunk portion（4）With many branch parts（5）, wherein trunk portion（4）With road and bridge Body（1）It is fixedly connected, branch part（5）With elastic plate（2）Connection, the branch part（5）For special spring steel makes Into, the special spring steel component be carbon 0.45% ~ 0.55% count by weight percentage, silicon 1.6% ~ 1.8%, manganese 0.65% ~ 0.75%th, chromium 0.65% ~ 0.85%, vanadium 0.11% ~ 0.14%, titanium 0.021% ~ 0.030%, phosphorus≤0.015%, sulfur≤0.015%, nickel 0.15% ~ 0.25%, molybdenum 0.1% ~ 0.6%, nitrogen 0.004% ~ 0.02%, aluminum 0.01% ~ 0.1%, balance of ferrum.

2. a kind of road and bridge anti-collision protection device according to claim 1, it is characterised in that：The branch part（5）With master Stem portion（4）It is detachably connected.

3. a kind of road and bridge anti-collision protection device according to claim 1, it is characterised in that：The elastic plate（2）Plate face The plane at place is vertical direction；Or the plane being located is the inclined plane in non-vertical direction.

4. a kind of road and bridge anti-collision protection device according to claim 1, it is characterised in that：The elastic plate（2）Plate face For curved-surface structure.

5. a kind of road and bridge anti-collision protection device according to claim 4, it is characterised in that：The spring（3）In stretching State；Or the spring（3）State in being compressed.

6. a kind of road and bridge anti-collision protection device according to claim 5, it is characterised in that：The special spring steel adopt with Lower step is realized：

Step 1, steel is refined and is forged and terminate in certain alloying element ratio after, be heated to 870 DEG C and quenched；

After the completion of step 2, steel quenching, 400 ~ 450 DEG C of average temperings are carried out at once, and is incubated 70 ~ 90min；

After step 3, insulation terminate, rapid cooling is carried out；

After step 4, rapid cooling, bead is finally carried out.