CN112093371A

CN112093371A - V-shaped flat roller conveying chain

Info

Publication number: CN112093371A
Application number: CN202011185971.XA
Authority: CN
Inventors: 方勇燕; 赵柏林
Original assignee: Changsha Chaint Machinery Co Ltd
Current assignee: Chaint Corp
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2020-12-18

Abstract

The V-shaped flat roller conveying chain consists of a V-shaped flat plate, a customized roller conveying chain, a guide device and the like. The V-shaped flat plate is symmetrical in structure, the V-shaped part is arranged in the middle of the V-shaped flat plate, and the V-shaped included angle is 165-175 degrees, so that the structural layout can prevent the reel paper from shaking back and forth, and the stable conveying of the reel paper is ensured; the flat plate parts of the V-shaped flat plates are arranged on two sides of the V-shaped part, and a plurality of V-shaped flat plates are connected in series to form a horizontal bearing surface which is large enough to be very beneficial to conveying the flat plate paper stack; therefore, the structural design of the V-shaped flat plate can meet the requirements of conveying the paper rolls of the winding drums and the paper stacks of the flat plates at the same time. In addition, the V-shaped flat plate is formed by welding a rectangular steel pipe and a V-shaped steel plate which are cut and processed, the bending resistance of the V-shaped flat plate is 8.17 times that of a similar conveying chain working panel, and the V-shaped flat plate has the characteristics of long service life, large bearing capacity and strong bending resistance. The chain has the characteristics of compact structure, stable performance, strong bending resistance, easy maintenance, difficult falling of a working panel and the like.

Description

V-shaped flat roller conveying chain

Technical Field

The invention belongs to the technical field of paper making conveying and packaging, and relates to a special V-shaped flat roller conveying chain.

Background

In the prior art, chain conveying, especially large-load-bearing chain conveying, mostly adopts roller conveying chains, such as standard long-pitch roller conveying chains, double-pitch roller conveying chains, and the like. The standard conveying chains are compact in structure, rollers in the standard conveying chains are sleeved on the sleeves in a large clearance mode, and the rollers are meshed with the chain wheels to transmit power, roll on the guide rails and bear conveying loads. However, these standard chains have sliding friction between the bushings and the rollers, and when the load is large and the conveying speed is high, the bushings are easily worn, and the service life of the chain is shortened. At the end of the 20 th century, a paper mill has a conveying chain with a standard needle bearing arranged between a sleeve and a roller, and the chain sleeve and the roller have rolling friction, so that the friction coefficient is small, the sleeve is not easy to wear through, the service life of the chain is prolonged, the power of a speed reducer of conveying equipment can be reduced under the condition of conveying the same load, and the purpose of reducing energy consumption is achieved. However, the chain has the disadvantages that the needle roller bearing is not easy to install, the tolerance between the outer circle of the sleeve and the inner hole of the roller is difficult to achieve, and the needle roller bearing is easy to be stuck due to dust accumulation in a paper mill. In addition, with the rapid development of the paper making industry, in order to reduce the production cost, improve the working efficiency and seize the market share, the paper making mill often puts higher requirements on the transportation and packaging of paper products, such as: the paper rolls required to be conveyed are heavier and heavier, the diameters of the paper rolls are larger and larger, the conveying speed is higher and higher, and the like. Therefore, the technical personnel in the field need to solve the problems of large bearing capacity, long service life, convenient installation and maintenance and adaptation to the requirements of paper mills.

Secondly, in the prior art, the paper mills are equipped with special production lines, one of which can only be used for horizontal transport packaging of webs (cylindrical shape) and the other of which can only be used for transport packaging of stacks of flat sheets (rectangular parallelepiped shape). However, due to the requirement of special processes, paper mills often need some conveying and packaging equipment to convey both the packaging paper roll and the packaging flat paper pile, so that the conveying chains used for the equipment have the functions of conveying the paper roll and the flat paper pile.

Disclosure of Invention

The invention aims to provide the V-shaped flat roller conveying chain which has the advantages of reasonable structure, large bearing capacity, stable transportation and long service life, and can convey reel paper rolls and flat paper stacks.

The technical scheme of the invention is as follows:

a V-shaped flat roller conveying chain comprises a V-shaped flat plate, a customized roller conveying chain, a guide device and a plastic dustproof cover. The V-shaped flat plate is symmetrical in structure, the V-shaped part is arranged in the middle of the V-shaped flat plate, the V-shaped included angle is 165-175 degrees, the flat plate parts are arranged on two sides of the V-shaped part, and the total length of the flat plate parts is 5-8 times of the length of the V-shaped part; one group of customized roller conveying chains is arranged right below the middle of the V-shaped flat plate, and the other groups of customized roller conveying chains are symmetrically arranged at equal intervals; and guide devices are also arranged on two sides of the V-shaped flat plate and comprise guide pin shafts and guide wheels, and the guide pins and the guide wheels are arranged on two sides of the V-shaped flat plate at equal intervals in pairs at intervals of 1-4 sections of chains. The V-shaped flat plates are sequentially arranged on a plurality of groups of customized roller conveying chains which are arranged in parallel, so that a larger bearing plane can be formed for bearing and transporting articles. The V-shaped included angle of the V-shaped flat plate is 165-175 degrees, and the V-shaped part is shorter at the moment, so that the influence on the rigidity of the V-shaped flat plate is smaller, the space can be saved, the requirements of customers can be met, and the roll paper with the diameter of 500-2000 mm can be conveyed. The total length of the flat plate part of the V-shaped flat plate is 5-8 times of the length of the V-shaped flat plate, so that the V-shaped flat plate has enough width to convey a flat plate paper pile with the width of 600-1200 mm.

The V-shaped flat plate is formed by welding a rectangular steel pipe and a V-shaped steel plate which are formed by cutting and processing. The bending resistance of the conveyor chain is 8.17 times that of a similar conveyor chain working panel, and the conveyor chain has the characteristics of long service life, high bearing capacity and strong bending resistance. The V-shaped steel plate is arranged in the middle of the rectangular steel pipe, and except for the V-shaped middle part of the rectangular steel pipe, the upper surfaces of the rest parts of the rectangular steel pipe are horizontal. The structure is suitable for horizontal conveying of the paper rolls, the paper rolls can be prevented from shaking back and forth, stable conveying is guaranteed, a plurality of rectangular steel pipes are sequentially and uniformly distributed on the roller conveying chain, a large enough horizontal bearing plane is formed, and the structure is very suitable for conveying flat paper stacks.

The customized roller conveying chain is composed of a common pin shaft, an inner chain plate, an outer chain plate, a pin shaft with holes and a customized roller, wherein the customized roller is an integral bearing and is composed of a sleeve, a non-standard needle bearing, a roller and a sealing ring. Compared with the roller of the conveying chain with the same specification, the customized roller has the advantages that the diameter of the roller pin bearing in the customized roller is doubled, and the number of the roller pins is increased by about 20%.

The customized roller conveying chains are reasonably arranged, and a group of roller chains are arranged right below a V-shaped part of the V-shaped flat plate to form a support, so that downward bending deformation of the V-shaped flat plate is reduced; and the other roller chains are symmetrically arranged at proper intervals according to the width and the weight of the conveyed flat paper pile.

The V-shaped flat plate and the customized roller conveying chain are welded in a circumferential weld welding mode, but when the chains are combined into a closed circumferential chain, the last overlapped sections of the chains are connected with the V-shaped flat plate and the groups of sleeve roller chains through bolts.

The guide wheel is a non-metal wheel or a standard ball bearing made of wear-resistant materials; the partial profile of the guide wheel protrudes 1-5 mm from the end parts of the two sides of the V-shaped flat plate. The structure can play a role in guiding and rectifying deviation in the conveying process of the V-shaped flat roller conveying chain.

The tolerance of the wheel track of the guide wheels on the two sides of the V-shaped flat plate is negative and is controlled within 0-2 mm. The design can reduce the manufacturing precision, prevent the too narrow of corresponding conveying equipment frame internal width size, the V-shaped dull and stereotyped roller conveying chain easily block in the operation process, the operation is inflexible, increases additional frictional force.

Compared with the prior art, the chain of the invention has the following progressive effects: the chain has the characteristics of compact structure, stable performance, strong bending resistance, easy maintenance, difficult falling of a working panel and the like. Meanwhile, due to the change of the structure of the needle bearing in the customized roller and the reasonable structural design of the V-shaped flat plate, the bearing capacity of the chain is greatly enhanced, the problems that the roller is easy to press deaf, crack and block in the prior art are solved, and the service life of the chain is greatly prolonged. In addition, the chain has the functions of conveying the paper rolls and the flat paper stacks, the current situation that a single device in a paper mill can only convey the paper rolls or the flat paper stacks is solved, the single device can convey both the paper rolls and the flat paper stacks, the occupied area of a production line is greatly reduced, the use efficiency of the device is improved, and the production cost is greatly reduced.

Drawings

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

FIG. 2 is a cross-sectional view of a single link of the present invention.

Fig. 3 is a front view of a V-shaped flat plate.

FIG. 4 is a front view of a customized roller conveyor chain with accessories.

FIG. 5 is a top view of a customized roller conveyor chain with accessories.

FIG. 6 is a cross-sectional view of a customized roller conveyor chain with accessories.

Fig. 7 is a schematic structural view of the guide device.

FIG. 8 is a schematic view of a roller configuration of a customized roller conveyor chain.

Fig. 9 is a schematic view showing a roller structure of a conventional paper roll conveying chain in a paper mill.

Fig. 10 is a schematic view of a prior art work deck of a similar conveyor chain.

FIG. 11 is a schematic view of a V-shaped plate roller conveyor chain conveying a web roll.

FIG. 12 is a schematic view of a V-shaped plate roller conveying chain conveying a plate paper stack.

In the figure: 1-V-shaped flat plate, 2-customized roller conveying chain, 3-guiding device, 4-plastic dustproof cover, 5-standard rectangular steel pipe, 6-V-shaped steel plate, 7-outer chain plate, 8-inner chain plate, 9-customized roller, 10-common pin shaft, 11-perforated pin shaft, 12-guiding pin shaft, 13-wear-resistant non-metal wheel or standard ball bearing, 14-sleeve, 15-standard needle bearing, 16-roller, 17-perforated inner chain plate, 18-perforated outer chain plate, 19-non-standard needle bearing, 20-reel and 21-flat paper pile.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1 and 2, the V-shaped flat roller conveying chain is composed of a V-shaped flat plate (1), a customized roller conveying chain (2), a guide device (3), a plastic dust cover (4) and the like. As shown in figure 3, the V-shaped flat plate (1) is symmetrical in structure and formed by welding a rectangular steel pipe (5) and a V-shaped steel plate (6), the V-shaped steel plate (6) is arranged in the middle of the V-shaped flat plate (1) to form a V-shaped part of the V-shaped flat plate, and the upper surfaces of two sides of the rectangular steel pipe (5) are horizontal except the middle of the V-shaped flat plate to form a flat plate part of the V-shaped flat plate. As shown in fig. 4-6, the customized roller conveying chain (2) mainly comprises an outer chain plate (7), an inner chain plate (8), a customized roller (9), a pin shaft with holes (11), a common pin shaft (10) and the like; the inner chain plate (8) and the customized roller (9) form an inner chain link through small interference fit; the inner chain links are connected in series with the outer chain plates through fixed pin shafts or pin shafts with holes to form the customized roller conveying chain (2). As shown in fig. 7, the guiding device (3) is composed of a guiding pin shaft (12), a wear-resistant non-metal wheel or a standard ball bearing (13), a fastener and the like.

As shown in FIG. 3, the working part of the V-shaped flat plate (1) is composed of the V-shaped part of the V-shaped steel plate (6) and the flat plate part formed by the upper surface of the rectangular steel pipe (5). The V-shaped included angle alpha of the V-shaped part is 165-175 degrees, the selected angle is 170 degrees, the structure has the characteristics of low middle and high two sides, and is very suitable for conveying the roll paper roll (20) (as shown in figure 11), the roll paper roll (20) can be prevented from shaking back and forth, and the conveying is ensured to be stable; the total length of the flat plate part is 5-8 times of the length of the V-shaped part, so that the V-shaped flat plate has enough width to convey a flat plate paper stack (21) with the width of 600-1200 mm. (as shown in fig. 12), different parts of the V-shaped flat plate (1) are used for conveying different articles, and other parts of the matched conveying equipment can be shared, so that the floor area of a production line is greatly reduced, the use efficiency of the equipment is improved, and the production cost is greatly reduced.

As shown in FIGS. 2 and 3, of a V-shaped plate (1)The bending resistance is very strong, even if calculated according to the lowest position of the V-shaped steel plate (6), the section inertia moment I of the V-shaped flat plate (1)_xIs also the cross-sectional moment of inertia I of the similar V-shaped panel (as shown in FIG. 10) of the prior art_x8.17 times of the total weight of the panel, and the bending deformation resistance of the panel is 8.17 times of that of a similar V-shaped panel according to the calculation of a physical formula. The high strength of the V-shaped plate (1) makes it possible for most paper mills to transport stacks of plate paper having a width of up to 1200 mm.

As shown in figure 2, customized roller conveying chains (2) are reasonably arranged, wherein one group of roller conveying chains are arranged right below a V-shaped part of a V-shaped flat plate (1), so that the V-shaped flat plate (1) is ensured not to be bent and deformed when paper rolls are conveyed, and the paper rolls are not shaken up and down when conveyed. And the other two groups of sleeve roller chains are symmetrically arranged at proper intervals according to the width and the weight of the flat paper pile.

As shown in fig. 8 and 9, the customized roller (9) is different from the roller structure of the prior art. As shown in fig. 8, the customized roller (9) is an integral bearing, integrates the functions of a roller, a sleeve and a needle bearing, and has the characteristics of compact structure, stable quality and convenient installation; in addition, the customized roller (9) is internally provided with a sealing structure, so that dust and scrap iron can be prevented from entering, and the occurrence of the roller blocking condition is reduced. However, the roller of the roller conveying chain in the prior art is of a split structure, as shown in fig. 9, the roller (16), the sleeve (14) and the standard needle bearing (15) are separate parts and need to be assembled when assembling, wherein the needle bearing (15) is difficult to install, takes a long time, and the assembling quality is difficult to guarantee; in addition, the needle bearing (15) has no sealing measure, and is easy to enter dust, scrap iron and other impurities.

As shown in figure 8, the diameter of the needle roller is doubled and the number of the needle rollers is increased by about 20% compared with the standard needle roller bearing of the same model by customizing the roller (9) and the non-standard needle roller bearing (19) inside the roller, so that the bearing capacity is greatly improved. The application of the non-standard needle bearing (19) in the conveying chain solves the problem that the roller of the conveying chain is cracked due to pressure deaf in the prior art.

As shown in FIG. 2, in order to prevent the V-shaped flat plate (1) from falling off, the V-shaped flat plate (1) and the customized roller conveying chain (2) are generally welded by adopting a circular seam welding method. However, as shown in fig. 5, the chain is often designed with a perforated outer chain plate (7) and a perforated inner chain plate (8) at the head and tail sections, during installation, the customized roller conveying chain (2) is firstly connected into a closed loop chain, and then the V-shaped flat plate (1) is installed on the customized roller conveying chain (2) by using high-strength bolts, locking plate nuts and the like, so that the design can avoid the falling of the V-shaped flat plate (1) as much as possible and facilitate the installation, the disassembly and the replacement of the customized roller conveying chain (2).

As shown in figure 2, the guide devices (3) are arranged on the V-shaped flat plate (1) which is continuously and uniformly distributed at equal intervals in pairs at intervals of 1-4 chains, and part of the profile of the guide wheel (3) protrudes 1-5 mm from the end parts of two sides of the V-shaped flat plate. When the device normally works, the guide wheel (3) rolls on the inner side of the frame of the corresponding conveying equipment, so that the device can be prevented from walking in a snake shape, and the effects of correcting deviation, guiding and reducing friction are achieved. In addition, the wheel track tolerance of the guide wheels (3) arranged in pairs is negative tolerance and is controlled within 0-2 mm. The design can reduce the manufacturing precision, prevent the corresponding conveying equipment frame from being too narrow in inner width dimension, the V-shaped flat roller conveying chain is easy to block in the operation process, the operation is not flexible, and the additional friction force is increased.

Claims

V-arrangement dull and stereotyped roller conveying chain, its characterized in that: the device comprises a V-shaped flat plate, a customized roller conveying chain, a guide device and a plastic dust cover; the V-shaped flat plate is symmetrical in structure, the V-shaped part is arranged in the middle of the V-shaped flat plate, the V-shaped included angle is 165-175 degrees, the flat plate parts are arranged on two sides of the V-shaped flat plate, and the total length of the flat plate parts is 5-8 times of that of the V-shaped part; one group of customized roller conveying chains is arranged right below the middle of the V-shaped flat plate, and the other groups of customized roller conveying chains are symmetrically arranged at equal intervals; and guide devices are also arranged on two sides of the V-shaped flat plate and comprise guide pin shafts and guide wheels, and the guide pins and the guide wheels are arranged on two sides of the V-shaped flat plate at equal intervals in pairs at intervals of 1-4 sections of chains.
2. The V-shaped plate roller conveyor chain of claim 1, wherein: the V-shaped flat plate is formed by welding a rectangular steel pipe and a V-shaped steel plate which are cut and processed; the V-shaped steel plate is arranged in the middle of the rectangular steel pipe, and except for the V-shaped middle part of the rectangular steel pipe, the upper surfaces of the rest parts of the rectangular steel pipe are horizontal.
3. The V-shaped plate roller conveyor chain of claim 1, wherein: the customized roller conveying chain is composed of a common pin shaft, an inner chain plate, an outer chain plate, a pin shaft with holes and a customized roller, wherein the customized roller is an integral bearing and is composed of a sleeve, a non-standard needle bearing, a roller and a sealing ring.
4. The V-shaped plate roller conveyor chain of claim 1, wherein: the V-shaped flat plate and the customized roller conveying chain are welded in a circumferential weld welding mode, but when the chains are combined into a closed circumferential chain, the last overlapped sections of the chains are connected with the V-shaped flat plate and the sets of sleeve roller chains through bolts.
5. The V-shaped plate roller conveyor chain of claim 1, wherein: the guide wheel is a non-metal wheel or a standard ball bearing made of wear-resistant materials; the partial profile of the guide wheel protrudes 1-5 mm from the end parts of the two sides of the V-shaped flat plate.