阅读说明：本技术 一种高耐磨性的导轨和导轮装置 (Guide rail and guide wheel device with high wear resistance ) 是由 甄耀家 刘鑫 徐辉能 苏宝其 黄馀坤 周伟涛 关文锦 杨希平 于 2019-07-15 设计创作，主要内容包括：本发明公开了一种高耐磨性的导轨和导轮装置。导轮装置包括导轮座、轴承、导轮和轴承座,导轮由如下质量份数的原料制备得到：树脂80～90份,耐磨铜粒6～8份、石墨3.5～5.5份、陶瓷粉2.5～4.5份。本发明导轮的制造材料用耐磨材质增加导轮自身的耐磨性,使导轮的使用寿命大幅增加,对导轮机构进行了结构改进,使导轨与导轮在接触时,单位面积的压力减小,减少了导轨与导轮表面的磨损,大大提高了导轨的使用寿命,轴承座采用偏心制作,具有间隙补偿功能,减少了行车运行时的振动和运行不平稳性；导轨镶嵌了耐磨条,运行时既有导轨钢面的支撑又有耐磨条的保护,大大提高了导轨的使用寿命、避免了传统导轨表面喷涂耐磨层在高压力负荷下剥落问题。(The invention discloses a guide rail and guide wheel device with high wear resistance. The guide wheel device comprises a guide wheel seat, a bearing, a guide wheel and a bearing seat, wherein the guide wheel is prepared from the following raw materials in parts by mass: 80-90 parts of resin, 6-8 parts of wear-resistant copper particles, 3.5-5.5 parts of graphite and 2.5-4.5 parts of ceramic powder. The manufacturing material of the guide wheel increases the self wear resistance of the guide wheel by using a wear-resistant material, so that the service life of the guide wheel is greatly prolonged, the structure of the guide wheel mechanism is improved, the pressure per unit area is reduced when the guide rail is in contact with the guide wheel, the wear of the surfaces of the guide rail and the guide wheel is reduced, the service life of the guide rail is greatly prolonged, and the bearing seat is manufactured eccentrically, has a clearance compensation function, and reduces the vibration and the instability of running during traveling; wear-resisting strip has been inlayed to the guide rail, and the existing support of guide rail steel face has wear-resisting strip's protection again in the operation, has improved the life of guide rail greatly, has avoided traditional guide rail surface spraying wearing layer to peel off the problem under high pressure load.)

1. The guide rail and guide wheel device with high wear resistance comprises a guide wheel seat, a bearing, a guide wheel and a bearing seat, and is characterized in that the guide wheel is prepared from the following raw materials in parts by mass: 80-90 parts of resin, 6-8 parts of wear-resistant copper particles, 3.5-5.5 parts of graphite and 2.5-4.5 parts of ceramic powder.

2. The guide rail and guide wheel device as claimed in claim 1, wherein the guide wheel is prepared from the following raw materials in parts by mass: 85 parts of resin, 7 parts of wear-resistant copper particles, 4.5 parts of graphite and 3.5 parts of ceramic powder.

3. The guide rail and guide wheel device as claimed in claim 2, wherein the grain size of the wear-resistant copper particles is 0.2-0.3 mm, and the grain size of the ceramic powder is not more than 0.1 mm.

4. The guide rail and guide wheel assembly as claimed in any one of claims 1 to 3, wherein the guide wheel has a diameter of 80 to 100mm and a thickness of 30 to 40 mm.

5. Guide rail and guide wheel arrangement according to claim 4, wherein the guide wheel seat is of constant centre distance and the bearing seat is of eccentric design.

6. The guide and idler assembly of claim 5 wherein the idler shoe is integrally formed.

7. The guide and idler assembly of claim 6 wherein the idler is removably attachable to the idler base.

8. The guide rail and guide wheel device as claimed in any one of claims 1 to 4, wherein wear resistant strips are embedded in the working surface of the guide rail.

9. The track and guide wheel assembly of claim 8, wherein said intermediate portion of the track face is separated by a groove 20mm wide and 2.5mm deep, said wear strip being embedded in the groove.

10. The guide rail and guide wheel device of claim 8, wherein the wear resistant strips are prepared from the following raw materials in percentage by mass: the wear-resistant strip is prepared from the following raw materials in parts by mass: 85% of resin, 7% of wear-resistant copper particles, 4.5% of graphite and 3.5% of ceramic powder.

Technical Field

The invention relates to the technical field of mechanical operation engineering elements, in particular to a guide rail and guide wheel device with high wear resistance.

Background

After the travelling crane and the guide rail are used for a long time, the guide wheel causes serious damage to the guide rail, so that the surface of the guide rail is abraded and sunken, further, because the abrasion of the guide rail generates a gap between the travelling crane guide wheel and the guide rail, mechanical equipment often has the phenomena of large vibration and unstable operation in the operation process. The diameter and the wide size of wheel of current guide pulley design are all less, and at guide pulley and guide rail contact process, the pressure that the unit area of guide rail received is great, appears wearing and tearing easily and caves in, makes to produce the clearance between guide pulley and guide rail to lead to the driving operation unstable, and the material of guide rail is softer, also appears wearing and tearing easily, these can all seriously operate the journey stationary degree and the life of guide rail and guide pulley. The prior art CN207209886U discloses a roadway stacker crane with an eccentric flange vertical lifting guide wheel, which adjusts the gap between the guide wheel and the guide rail by adjusting the installation angle of the eccentric flange, so that the guide wheel runs stably on the guide rail. However, the method only aims at the running clearance of the guide wheel and the guide rail to carry out later adjustment, and cannot improve the wear resistance of the guide wheel and the guide rail as a whole.

Therefore, in order to better improve the wear resistance of the travelling crane guide wheel and the guide wheel, the guide wheel and the guide wheel device with high wear resistance are provided, and the guide wheel device have very important significance for the operation stability of the whole mechanical equipment and the prolonging of the service life of the guide wheel of the guide rail.

Disclosure of Invention

The guide wheel is prepared from a specific material, a wear-resistant material with high wear resistance is prepared from wear-resistant filler copper particles, ceramic powder and graphite in a specific compatibility manner, and the wear-resistant material is applied to the preparation of the guide wheel, so that the guide wheel and the guide wheel device with high wear resistance are obtained.

The above purpose of the invention is realized by the following technical scheme:

The guide rail and guide wheel device with high wear resistance comprises a guide wheel seat, a bearing, a guide wheel and a bearing seat, wherein the guide wheel is prepared from the following raw materials in parts by mass: 80-90 parts of resin, 6-8 parts of wear-resistant copper particles, 3.5-5.5 parts of graphite and 2.5-4.5 parts of ceramic powder.

The guide wheel is made of a specific wear-resistant material, so that the wear resistance of the guide wheel is improved, the friction coefficient is reduced from 0.15 of a rigid material to 0.04, and the service life of the guide wheel is greatly prolonged. The graphite is contained in the wear-resistant material, so that the friction coefficient of the material can be reduced, and the wear-resistant copper particles and the ceramic powder are filled in the material, so that the wear resistance is greatly improved.

Preferably, the guide wheel is prepared from the following raw materials in parts by mass: 85 parts of resin, 7 parts of wear-resistant copper particles, 4.5 parts of graphite and 3.5 parts of ceramic powder.

Preferably, the particle size of the wear-resistant copper particles of the present invention is: 0.2-03 mm, and the grain size of the ceramic powder is less than or equal to 0.1 mm.

the particle size of the wear-resistant copper particles and the ceramic powder can influence the distribution uniformity of the wear-resistant copper particles and the ceramic powder serving as filling materials in the whole wear-resistant material, so that the force distribution and the friction resistance of the material are influenced.

The preparation method of the wear-resistant material comprises the following steps: resin sintering: keeping the temperature at the temperature of not more than 380 ℃ for 4h, taking graphite, copper particles and ceramic powder as filling materials, and modifying the wear resistance of the resin material.

Preferably, the diameter of the guide wheel is 80-100mm, and the thickness of the guide wheel is 30-40 mm. The rotating speed of the guide wheel can be reduced by increasing the diameter of the guide wheel, and the service life is prolonged; the thickness of the guide wheel is increased, the contact area between the guide wheel and the guide rail can be increased, and the stress of the unit area of the guide wheel and the unit area of the guide rail is reduced, so that the service life is prolonged.

Preferably, the center distance of the guide wheel seat is constant, and the bearing seat is in an eccentric design. Because the bearing seat is made eccentrically, the gap between the guide wheel and the guide rail can be adjusted only by changing the direction of the guide wheel, and the influence on the stable operation caused by the non-fit operation of the guide rail and the guide wheel is avoided.

Preferably, the guide wheel seat is integrally formed. The conventional guide wheel seat is formed by welding plates, and the guide wheel seat is preferably formed by machining a whole piece of steel according to a sample, so that the phenomenon that the center distance is changed due to deformation of a welding seam after the guide wheel seat is used for a period of time is avoided, and the center distance of the guide wheel seat is constant.

Preferably, the guide wheel is detachably connected with the guide wheel seat. The guide wheel can be conveniently detached from the guide wheel seat, and the maintenance and disassembly working hours are greatly shortened.

Preferably, wear-resistant strips are embedded on the working surface of the guide rail. The wear resistance of the international guide rail product made of general steel can not meet the use requirement generally, and a general wear-resistant layer can not bear the weight of, and the wear-resistant layer can be peeled off under the high pressure load, and wear-resistant strips are embedded on the guide rail working face, so that the wear resistance of the guide rail can be well improved, and the wear-resistant strips can be prevented from being peeled off under the high pressure charge.

Preferably, the middle of the rail face is separated by a 20mm wide, 2.5mm deep groove in which the wear strip is embedded. Under the condition of ensuring the strength and the rigidity of the guide rail, the middle part of the guide rail surface is provided with a deep groove with the width of 20mm and the width of 2.5mm, then the wear-resistant strip is embedded in the deep groove, and the guide wheel has the support of the steel surface of the guide rail and the protection of the wear-resistant strip when the guide rail surface runs, thereby greatly prolonging the service life of the guide rail and avoiding the problem that the wear-resistant layer sprayed on the surface of the traditional guide rail is peeled off under high pressure load.

More preferably, the wear-resistant strips are prepared from the following raw materials in percentage by mass: 85% of resin, 7% of wear-resistant copper particles, 4.5% of graphite and 3.5% of ceramic powder.

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

(1) The wear-resistant material for the manufacturing material of the guide wheel increases the self wear resistance of the guide wheel, and the graphite lubrication is adopted to reduce the friction coefficient, so that the wear resistance of the guide wheel is greatly improved, and the service life of the guide wheel is greatly prolonged;

(2) The guide wheel device improves the structure of the guide wheel mechanism, increases the diameter of the guide wheel and the thickness of the guide wheel, reduces the pressure per unit area when the guide rail is contacted with the guide wheel, reduces the abrasion of the surfaces of the guide rail and the guide wheel, and greatly prolongs the service life of the guide rail;

(3) The bearing seat of the guide wheel device is eccentrically manufactured, the gap between the guide wheel and the guide rail can be adjusted only by changing the direction of the guide wheel, the gap compensation function is realized, and the vibration and the running instability during running are reduced;

(4) The guide wheel bearing seat can be detached from the guide wheel seat, so that the maintenance time is greatly shortened.

(5) The guide rail is embedded with the wear-resistant strips, and the guide rail surface embedded with the wear-resistant strips is supported by the steel surface of the guide rail and protected by the wear-resistant strips when running, so that the service life of the guide rail is greatly prolonged, and the problem that a wear-resistant layer sprayed on the surface of the traditional guide rail is peeled off under a high-pressure load is solved.

Detailed Description

The present invention will be further described with reference to specific embodiments, but the present invention is not limited to the examples in any way. The starting reagents employed in the examples of the present invention are, unless otherwise specified, those that are conventionally purchased.