阅读说明：本技术 一种用于自动扶梯或自动人行道的回转链 (Rotary chain for escalator or moving sidewalk ) 是由 乌尔夫干飞格立 于 2020-12-04 设计创作，主要内容包括：本发明涉及一种用于自动扶梯或自动人行道的回转链,包含一个塑料带,设置在塑料带上的多个塑料轴,设置在多个塑料轴两端的轴承座以及设置在多个塑料轴两端的轴承座上的轴承,塑料轴采用工程塑料制成,塑料带采用纤维增强工程塑料制成。解决了上述容易接触腐蚀、噪声大和阻尼效果不佳的技术问题。由于多个塑料轴中每根塑料轴对塑料带二次成型,直接将所述每根塑料轴固定在所述塑料带上,避免了轴承与另一金属部件之间的接触,从而减少了接触腐蚀,从而延长了回转链的使用寿命。(The invention relates to a rotating chain for an escalator or a moving sidewalk, which comprises a plastic belt, a plurality of plastic shafts arranged on the plastic belt, bearing seats arranged at two ends of the plastic shafts and bearings arranged on the bearing seats at two ends of the plastic shafts, wherein the plastic shafts are made of engineering plastics, and the plastic belt is made of fiber reinforced engineering plastics. The technical problems of easy contact corrosion, large noise and poor damping effect are solved. Because each plastic shaft in the plurality of plastic shafts carries out secondary forming on the plastic belt and is directly fixed on the plastic belt, the contact between a bearing and another metal part is avoided, the contact corrosion is reduced, and the service life of the rotary chain is prolonged.)

1. A rotating chain for an escalator or a moving sidewalk is characterized by comprising a plastic belt, a plurality of plastic shafts arranged on the plastic belt, bearing seats arranged at two ends of the plastic shafts and bearings arranged on the bearing seats at two ends of the plastic shafts, wherein the plastic shafts are made of engineering plastics, and the plastic belt is made of fiber reinforced engineering plastics.

2. The revolving chain for an escalator or a moving walkway according to claim 1, wherein each of the plurality of plastic shafts is overmolded to the plastic belt directly securing each of the plastic shafts to the plastic belt.

3. The rotating chain for an escalator or a moving walkway according to claim 1 or 2, wherein the plastic shaft is composed of Polyamide (PA) or polypropylene (PP).

4. The revolving chain for an escalator or a moving walkway according to claim 1 or 2, wherein the plastic shaft is composed of fiber reinforced plastic, the fibers being composed of Glass Fibers (GF) or carbon fibers (GF).

5. The revolving chain for an escalator or a moving walkway according to claim 1 or 2, wherein the plastic belt is composed of fiber reinforced Polyamide (PA) or Polyethylene (PE).

6. The revolving chain for an escalator or a moving walkway according to claim 1 or 2, wherein the fibers in the plastic belts made of fiber reinforced engineering plastic consist of Glass Fibers (GF) or carbon fibers (GF) or aramid fibers.

7. The revolving chain for an escalator or a moving walkway according to claim 1 or 2, wherein the plastic belt passes through the plurality of plastic shafts.

Technical Field

The invention relates to a revolving chain for an escalator or a moving walkway.

Background

Escalators or moving walkways typically include a handrail that travels along a balustrade. In special cases the handrail belt needs to be moved along certain rollers. The rollers are connected together to form a chain, called a rotating chain. On the other hand, the handrail belt rotating chain (or swinging chain) enables the handrail belt at the c-shaped turning sections at the top and the bottom of the escalator system to smoothly slide so as to reduce the running resistance. Here, it ensures a smooth running of the handrail belt in the direction of travel. However, it is also necessary to overcome the great pressure that the handrail belt causes on the balustrade, and the drawback of the revolving chain is its susceptibility to vibrations and premature corrosion, as follows. Ep2523890b1 discloses a swivel chain. The handrail belt runs on a handrail belt guide rail which is fixed on the handrail belt of the escalator system. When guiding the handrail belt, it reduces the frictional resistance of the handrail belt on the handrail belt guide rail, thereby causing premature wear of the handrail belt and unnecessary noise on the handrail belt. The handrail belt rotating chain reduces noise by providing rolling contact between the handrail belt and the handrail belt guide rail, and only rolling friction is generated. US5372232 discloses a swivel chain with soft rollers having a drive wheel and a device for pressing a handrail belt onto the drive wheel. The device comprises a number of rollers made of a polymer material having a hardness in the range softer than the handrail belt, but for a revolving chain the problems are still caused by vibrations and driving on the revolving chain. According to the prior art, the current revolving chain comprises a long chain, which is mainly composed of a metal belt, passes through a plurality of metal shafts, and bearings are arranged at two ends of most of the shafts. However, over time, these structural forms exhibit contact stress corrosion of the metal belt with other metal components (e.g., bottom support metal components), resulting in noise and premature failure of the entire rotating chain. Furthermore, the more contact between the metal parts, the more sound is applied, since the sound generated by the escalator vibrations in operation is better transmitted through metal than through plastic.

Disclosure of Invention

The invention provides a rotating chain for an escalator or a moving sidewalk, which aims to solve the technical problems of easy contact corrosion, high noise and poor damping effect of the existing rotating chain for the escalator or the moving sidewalk.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a rotating chain for an escalator or a moving sidewalk is characterized by comprising a plastic belt, a plurality of plastic shafts arranged on the plastic belt, bearing seats arranged at two ends of the plastic shafts and bearings arranged on the bearing seats at two ends of the plastic shafts, wherein the plastic shafts are made of engineering plastics, and the plastic belt is made of fiber reinforced engineering plastics.

Each plastic shaft in the plurality of plastic shafts carries out secondary forming on the plastic belt, and each plastic shaft is directly fixed on the plastic belt.

The plastic shaft is composed of Polyamide (PA) or polypropylene (PP).

The plastic shaft is made of fiber-reinforced plastic, and the fibers are made of Glass Fibers (GF) or carbon fibers (GF).

The plastic tape is composed of fiber reinforced Polyamide (PA) or Polyethylene (PE).

The fiber in the plastic belt made of the fiber reinforced engineering plastic consists of Glass Fiber (GF), carbon fiber (GF) or aromatic polyamide fiber.

The plastic band passes through the plurality of plastic shafts.

After the technical scheme is adopted, the rotary chain for the escalator or the moving sidewalk comprises the plastic belt, the plastic shafts arranged on the plastic belt, the bearing seats arranged at two ends of the plastic shafts and the bearings arranged on the bearing seats at two ends of the plastic shafts, the plastic shafts are made of engineering plastics, and the plastic belt is made of fiber reinforced engineering plastics. The technical problems of easy contact corrosion, large noise and poor damping effect are solved. Because each plastic shaft in the plurality of plastic shafts carries out secondary forming on the plastic belt and is directly fixed on the plastic belt, the contact between a bearing and another metal part is avoided, the contact corrosion is reduced, and the service life of the rotary chain is prolonged. The flexibility of the plastic belt makes it suitable for the support of curved escalators. By damping vibrations from the revolving chain to the handrail, the plastic material construction is better at reducing vibrations than metal, which is a natural resonator.

Description of the drawings:

fig. 1 is a perspective view of a revolving chain for an escalator or a moving sidewalk according to the present invention.

Fig. 2 is a schematic cross-sectional structure of a revolving chain for an escalator or a moving walkway according to the present invention.

Detailed description of the invention

The technical solution in the embodiments of the present invention will be clearly and completely described below. It is to be understood that the described embodiments are only a part, and not all, of the embodiments of the invention. All other embodiments, which can be obtained by a person of ordinary skill without any inventive effort based on the embodiments of the present invention, are within the scope of the present invention. In order to more clearly illustrate the technical solutions in the embodiments of the present invention.

As shown in fig. 1 and 2, a revolving chain for an escalator or a moving walkway comprises a plastic belt 3, a plurality of plastic shafts 2 arranged on the plastic belt 3, bearing seats 4 arranged at both ends of the plurality of plastic shafts 2, and bearings 1 arranged on the bearing seats 4 at both ends of the plurality of plastic shafts 2, wherein the plastic shafts 2 are made of engineering plastics, the plastic belt 3 is made of fiber reinforced engineering plastics, each plastic shaft 2 in the plurality of plastic shafts 2 performs secondary molding on the plastic belt 3 to directly fix each plastic shaft 2 on the plastic belt 3, the plastic shafts 2 are made of Polyamide (PA) or polypropylene (PP), the plastic shafts 2 can also be made of fiber reinforced plastics, and fibers are made of Glass Fibers (GF) or carbon fibers (GF). The plastic strip 3 consists of fiber-reinforced Polyamide (PA) or Polyethylene (PE). The fibers in the plastic strip 3 made of fiber-reinforced engineering plastic consist of Glass Fibers (GF) or carbon fibers (GF) or aramid fibers. The plastic band 3 passes through a plurality of plastic shafts 2.

Referring to fig. 2, the plastic shaft 2, the plastic band 3, and their connection to each other will be discussed in more detail. The figure shows the bearings 1 mounted on both ends of a plastic shaft 2, with a plastic band 3 passing through the plastic shaft 2. The connecting region 5 describes the overmoulding of the plastic shaft 2 on the plastic strip 3, so that it is fixed in all directions. The term "over-molding" as used herein means molding the plastic shaft 2 around the plastic band 3, and fixing the plastic shaft 2 along the length of the plastic band 3 so that the plastic shaft 2 cannot be removed from the plastic band 3 without damaging the plastic shaft 2. The plastic shaft 2 is preferably made of thermoplastic materials such as PP, PP-Gf, PA-Gf and PA-Cf; the plastic belt 3 is preferably made of PP, PE carbon fiber, glass fiber reinforcement and aromatic polyamide fiber.

It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that the invention disclosed herein is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present invention as defined by the appended claims. Furthermore, even though the spirit and scope of the invention is illustrated in terms of specifically disclosed embodiments, the spirit and scope of the invention should not be construed using donation principles unless expressly admitted by the applicant to be so.