CN210619271U - Low-noise guide rail conveying system - Google Patents

Abstract

The utility model discloses a low noise guide rail conveying system, including transmission roller chain, plastics annex, plastics guide rail, sprocket, the transmission roller chain drives the transmission by the sprocket, the transmission roller chain is installed and is removed along the plastics guide rail in the plastics guide rail internal energy, the plastics annex is connected and is hung in plastics guide rail below on the transmission roller chain, be connected through joint part between plastics annex and the transmission roller chain, the through-hole both ends that supply joint part to wear to establish on the plastics annex all are provided with elastic buffer. The utility model discloses an elastic buffer pad makes the connection of taking over the part of joint and transmission roller chain, plastics annex change into the zero clearance connection by original clearance connection, is showing the operation collision noise of lowering system.

Description

Low-noise guide rail conveying system

Technical Field

The utility model relates to a conveying system, concretely relates to low noise guide rail conveying system.

Background

The electric commercial supermarket and the industrial automation use plastic guide rails and transmission chains to convey articles, so that the production and operation efficiency is obviously improved; as the conveying speed increases, the problem of noise becomes more pronounced, and the main sources of noise generation are 2: firstly, impact sound which is generated by chain transmission polygon effect and changes with speed; and the collision noise generated by the inherent clearance of the guide rail conveying system comprises the clearance between the guide rail and the chain, the clearance between the chain and the related connecting accessory and the clearance between the accessory and the guide rail, and the existence of the clearances can generate noise when the guide rail conveying system is slightly discontinuous in operation or is contacted with a bearing object.

Disclosure of Invention

In order to overcome the defects existing in the prior art, the utility model provides a low-noise guide rail conveying system without gaps and with reduced noise.

The utility model adopts the technical proposal that:

a low-noise guide rail conveying system comprises a transmission roller chain, a plastic accessory, a plastic guide rail and a chain wheel, wherein the transmission roller chain is driven by the chain wheel to transmit, the transmission roller chain is installed in the plastic guide rail and can move along the plastic guide rail, the plastic accessory is connected to the transmission roller chain and is suspended below the plastic guide rail, and the low-noise guide rail conveying system is characterized in that: the plastic accessory is connected with the transmission roller chain through a joint part, and elastic cushion pads are arranged at two ends of a through hole in the plastic accessory, through which the joint part penetrates. The utility model discloses an elastic buffer pad makes the connection of taking over the part of joint and transmission roller chain, plastics annex change into the zero clearance connection by original clearance connection, is showing the operation collision noise of lowering system.

Further, the inner aperture of the resilient bumper pad is 5% to 20% smaller than the joint member diameter.

Further, the elastic buffer cushion is injection molded on the plastic accessory or is arranged on the plastic accessory.

Furthermore, the buffering foam is arranged in the inner groove of the plastic guide rail, lubricating oil is adsorbed by the aid of the paving of the buffering foam, friction force is reduced, impact noise generated by the transmission roller chain and the plastic guide rail in a climbing upwarping stage and a turning stage is relieved, and system noise is obviously reduced.

Furthermore, the buffer foam is adhered to the plastic guide rail or directly injected on the plastic guide rail.

Furthermore, the two sides of the chain wheel are respectively provided with a support platform which is arranged in a protruding mode, and an elastic body is paved on the support platforms. The supporting table is arranged to support the elastic body, so that the contact strength between the elastic body and the transmission roller chain is reliable and stable, the concentricity of the elastic body and the chain wheel during installation is easy to keep, and the concentricity can be ensured no matter the elastic body is made into an annular sleeve or a strip-shaped winding; meanwhile, the elastic body can be replaced by materials with different thicknesses and elasticity as required.

Further, the elastomer is an elastomer made of rubber, a braid or a foamed material. The hardness and spring force requirements of the elastomer are determined by the tension and speed of the drive roller chain.

Further, the preferable height of the elastic body is such that when the rollers of the driving roller chain are at the bottom of the sprocket groove, the inner link plate of the driving roller chain is pressed into the elastic body by 0.05-0.2MM, and at this time, the depth of pressing the link plate into the elastic body is within the elastic limit range. The height of the elastic body is set according to the principle that the inner chain plate of the transmission roller chain contacts the elastic body firstly.

Further, the preferred thickness of the elastomer is 3-10 times the maximum wear thickness for sprocket life.

Further, the body of the chain wheel is made of steel materials or injection-molded by plastic resin.

The utility model has the advantages that:

1. the elastic buffer cushion changes the connection between the joint part and the transmission roller chain and between the joint part and the plastic accessories from the original gap connection to the gapless connection, and obviously reduces the running collision noise of the system.

2. Through laying of the buffer foam, lubricating oil is adsorbed to reduce friction force, impact noise generated by the transmission roller chain and a plastic guide rail in the stage of climbing up a slope and turning is reduced, and system noise is obviously reduced.

3. The supporting table is arranged to support the elastic body, so that the contact strength between the elastic body and the transmission roller chain is reliable and stable, the concentricity of the elastic body and the chain wheel during installation is easy to maintain, and the concentricity can be ensured no matter the elastic body is made into an annular sleeve or wound in a strip shape; meanwhile, the elastic body can be replaced by materials with different thicknesses and elasticity as required.

4. The arrangement of the elastic body reduces noise generated in the contact process of the transmission roller chain and the chain wheel, plays a role in collision prevention, reduces abrasion of the chain wheel and the transmission roller chain, and prolongs the service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the transmission roller chain of the present invention.

Fig. 3 is a schematic sectional view of the plastic accessory of the present invention.

Fig. 4 is a schematic cross-sectional view of the structure for disposing multiple kinds of cushioning foams in the plastic guide rail according to the present invention.

Fig. 5 is a schematic cross-sectional view of the sprocket of the present invention.

In the figure: 1-driving roller chain, 2-connecting part, 3-plastic accessory, 31-metal embedded part, 4-elastic buffer cushion, 5-plastic guide rail, 6-buffer foam, 7-chain wheel, 8-supporting table, 9-elastic body and 10-driving motor.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-5, the embodiment provides a low-noise guide rail conveying system, which includes a transmission roller chain 1, a plastic accessory 3, a plastic guide rail 5, and chain wheels 7, wherein the transmission roller chain 1 is driven by a driving unit, the driving unit includes a driving motor 10 and one or more chain wheels 7, the chain wheels 7 are driven by the driving motor 10 to rotate, when one chain wheel 7 is provided, the chain wheel 7 is directly driven by the driving motor 10 to operate, when a plurality of chain wheels 7 are provided, one chain wheel 7 is driven by the driving motor 10 to operate, and the other chain wheels 7 are driven by a synchronous belt or a chain to operate together; the transmission roller chain 1 is arranged in a circulating manner, chain wheels 7 are arranged at two end parts of the transmission roller chain 1, the transmission roller chain 1 is arranged in a plastic guide rail 5 and can move along the plastic guide rail 5 under the driving of the chain wheels 7, the plastic accessories 3 are uniformly distributed and connected to the transmission roller chain 1 and are suspended below the plastic guide rail 5, and metal embedded parts 31 are arranged on the plastic accessories 3; the transmission roller chain 1 is a standard A or B series chain or a customized non-standard chain, the plastic accessory 3 is connected with the transmission roller chain 5 through a joint part 2 of a double-row chain, the joint part comprises a chain plate and a pin shaft, two ends of a through hole for the joint part 2 to penetrate through are respectively provided with an elastic cushion pad 4, the elastic cushion pads 4 are injection-molded on the plastic accessory 3 and can also be independently installed on the plastic accessory 3, and the inner aperture of each elastic cushion pad 4 is 5-20% smaller than the diameter of the joint part 2 (namely the pin shaft). The utility model discloses an elastic buffer pad 4 makes the connection of taking turns to between part 2 and transmission roller chain 1, the plastics annex 3 by original clearance connection and changes into the zero clearance connection, is showing the operation collision noise of lowering system.

In the embodiment, the inner groove of the plastic guide rail 5 is internally provided with the buffer foam 6 with low friction coefficient, and the structure of the inner groove is matched with the appearance of the transmission roller chain. The buffer foam can be adhered to the top surface of the inner groove of the plastic guide rail 5, can also be directly injected on the top surface of the inner groove of the plastic guide rail 5, can be arranged on two sides of the top surface of the inner groove and used for contacting with a chain plate, can also be flatly paved on the top surface of the inner groove and used for contacting with the upper surface of the transmission roller chain 1, and can also be arranged in concave surfaces on two sides of the inner groove and used for contacting with the side surface of the chain plate; through the laying of the buffer foam 6, lubricating oil is adsorbed to reduce friction force, impact noise generated by the transmission roller chain 1 and the plastic guide rail 5 in the ascending and turning stage of a climbing slope is relieved, and system noise is obviously reduced.

The body of the sprocket 7 of this embodiment may be formed by machining a steel material or by injection molding a plastic resin. Supporting tables 8 which are convexly arranged are arranged on two sides of the chain wheel 7, and elastic bodies 9 are paved on the supporting tables 8. The material of the elastic body 9 can be rubber, also can be a braided fabric or a foaming material, the hardness and the elastic force requirement of the elastic body 9 are determined according to the tension and the speed of the transmission chain, the height of the elastic body 9 is set on the principle that the inner chain plate of the transmission roller chain 1 contacts the elastic body 9 firstly, preferably, the height is 0.05-0.2MM when the roller of the transmission roller chain 1 is positioned at the bottom of the tooth groove of the chain wheel 7, the inner chain plate of the transmission roller chain 1 is pressed into the elastic body, and the depth of the pressing of the chain plate into the elastic body is ensured to be within the elastic limit range; the thickness of the elastic body 9 is set to be 3 times or more, preferably 3 to 10 times, the maximum wear thickness of the sprocket 7 in life. The utility model ensures the reliable and stable contact strength between the elastomer 9 and the transmission roller chain 1 by arranging the support table 8 to support the elastomer 9, and easily keeps the concentricity between the elastomer 9 and the chain wheel 7 when being installed, and the concentricity can be ensured no matter the elastomer 9 is made into an annular sleeve or a strip-shaped winding; meanwhile, the elastic body 9 can be replaced by materials with different thicknesses and elasticity as required.

The utility model discloses reduce the running noise from 75 decibels to below 66 decibels in the in-service use.

Claims (10)

1. A low-noise guide rail conveying system comprises a transmission roller chain, a plastic accessory, a plastic guide rail and a chain wheel, wherein the transmission roller chain is driven by the chain wheel to transmit, the transmission roller chain is installed in the plastic guide rail and can move along the plastic guide rail, the plastic accessory is connected to the transmission roller chain and is suspended below the plastic guide rail, and the low-noise guide rail conveying system is characterized in that: the plastic accessory is connected with the transmission roller chain through a joint part, and elastic cushion pads are arranged at two ends of a through hole in the plastic accessory, through which the joint part penetrates.

2. A low noise track conveyor system according to claim 1, wherein: the inner aperture of the resilient bumper pad is 5% -20% smaller than the diameter of the joint member.

3. A low noise track conveyor system according to claim 1, wherein: the elastic buffer cushion is formed on the plastic accessory in an injection molding mode or is arranged on the plastic accessory.

4. A low noise guide rail conveying system according to any one of claims 1 to 3, wherein: the inner groove of the plastic guide rail is internally provided with buffer foam.

5. The low noise track conveyor system of claim 4, wherein: the buffer foam is adhered to the plastic guide rail or directly injected on the plastic guide rail.

6. A low noise guide rail conveying system according to any one of claims 1 to 3, wherein: supporting tables which are convexly arranged are arranged on two sides of the chain wheel, and elastic bodies are paved on the supporting tables.

7. A low noise track conveyor system according to claim 6, wherein: the elastomer is an elastomer made of rubber, woven fabric or foamed material.

8. A low noise track conveyor system according to claim 6, wherein: the height of the elastic body is that when the roller of the transmission roller chain is positioned at the bottom of the sprocket tooth groove, the inner chain plate of the transmission roller chain can press into the elastic body by 0.05-0.2MM, and at the moment, the depth of the inner chain plate pressing into the elastic body is in the elastic limit range.

9. A low noise track conveyor system according to claim 6, wherein: the thickness of the elastomer is 3-10 times of the maximum wear thickness of the service life of the chain wheel.

10. A low noise guide rail conveying system according to any one of claims 1 to 3, wherein: the body of the chain wheel is made of steel materials or is formed by injection molding of plastic resin.

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