Friction welding forged chain for scraper conveyor and weaving process

Abstract

According to the friction welding forged chain for the scraper conveyor and the weaving technology, a base material is heated and then forged, and a forged ring is obtained; cutting the part of the forged ring along the width direction to obtain half rings with the number twice that of the part of the forged ring; the forged rings and the semi-rings are alternately distributed by weaving friction welding equipment, the two semi-rings with opposite openings are subjected to friction welding to form a welding ring, and the forged rings and the welding ring are alternately distributed to form the chain. Compared with traditional direct bending forming of bars, the forged rings have higher material strength and a denser internal organization structure, so that the overall bearing capacity of the chain is improved, and the service life of the chain is prolonged. Compared with flash welding, the welding ring formed through linear friction welding has the advantages that the surface of the chain ring does not have the defects of burn, cracks and the like, and the phenomenon of insufficient welding does not occur; alternate distribution of the forged rings and the welded rings is achieved through the braiding friction welding equipment, and compared with traditional manual chaining and welding, the production efficiency is greatly improved through the process.

Description

Technical Field

[0001] The present application relates to the field of mining chains, and in particular to a friction welded forged chain and a weaving process for a scraper conveyor. Background Art

[0002] In recent years, the rapid development of my country's coal industry has been accompanied by a significant improvement in the level of mechanization. This trend has greatly promoted the large-scale application of high-power, high-efficiency coal mining machinery and transportation machinery. With the comprehensive mechanization of coal mining (comprehensive mining) reaching 95%, the coal mining industry has a sharp increase in demand for key accessories - high-strength mining chains, especially large-size high-strength mining chains with specifications of φ34 to φ48. There is a significant mismatch between market demand and production supply capacity, and the phenomenon of market supply exceeding demand is becoming increasingly prominent.

[0003] In response to this challenge, many domestic coal mining machinery manufacturers have taken action to improve the production capacity of large-scale high-strength mining chains through independent research and development, introduction of foreign advanced equipment and technology, etc. In the efforts of these companies, the chain preparation and welding process has become the key to core competitiveness, which is directly related to product quality and production efficiency.

[0004] At present, there are three main production processes for large-size mining chains in China, all of which use flash welding as the welding method: 1. Manual chain weaving and cold welding process: This process relies on punching equipment and special tooling for manual operation, and has high requirements for the cold bending performance of the material. However, during the cold bending process, the inner and outer arcs of the chain link bend are unevenly stressed, which can easily lead to microcracks, wrinkles, and even brittle fractures. In addition, the current skin effect on the surface of the chain link during flash welding exacerbates the temperature difference, which may cause defects such as burns and cracks. In addition to the equipment accuracy, fixture stiffness limitations, and post-weld rebound problems, this process is limited in the production of mining round link chains with a diameter of more than 26 mm.

[0005] 2. Automatic heating chain weaving and cold welding process: Compared with manual chain weaving, this process is to weave and weld the chain links after heating and cooling. Although it has made some progress and is widely used, it is easy to form oxide scale on the surface of the weld, which affects the welding quality and requires additional surface treatment processes, thereby increasing the cost. At the same time, cold welding has strict requirements on the pressure holding time after welding, and the rapid opening of the clamp can easily lead to loose weld structure, affecting the quality.

[0006] 3. Automatic heating chain weaving and hot welding process: This process weaves the chain at a high temperature of 650℃ to 750℃ and requires the use of a robot, which is prone to produce clamping indentations that affect the surface quality. During the post-welding shaping, the temperature difference between the various parts of the chain link causes inconsistent deformation, making the ring irregular.

[0007] In addition, there are significant differences in the selection of process parameters for cold and hot welding, such as clamping length, preheating time, burning speed, etc., which make control more difficult.

[0008] In summary, the existing chain link and chain production process has significant drawbacks: first, the raw material bar has not been forged, and its strength is low and its structure is loose compared to forged materials; second, the problems inherent in the flash welding process, such as loose weld structure, surface burns, cracks and cold welds, are difficult to eliminate through heat treatment, further exacerbating the quality risks. Therefore, it is particularly important to develop a new mining chain production process that can overcome the above defects, improve the strength of the chain link and improve the welding quality. Summary of the invention

[0009] The embodiment of the present application provides a friction-welded forged chain and weaving process for a scraper conveyor, in which the forged rings are cut and then re-welded into one piece by friction welding, and connected to two other forged rings to form a chain, thereby solving the problems existing in the existing flash welding process and improving the strength of the chain rings.

[0010] On the one hand, the embodiment of the present application provides a process for weaving a forged chain by friction welding for a scraper conveyor, comprising: The base material is heated and then forged to obtain a forged ring; Cutting a portion of the forged rings along the width direction to obtain half rings twice the number of the portion of the forged rings; The forged rings and the half rings are arranged alternately by weaving a friction welding device, and the two half rings with openings facing each other are friction welded into a welded ring. The forged rings and the welded rings are arranged alternately to form a chain.

[0011] In a feasible implementation, the heating of the substrate and then forging to obtain the forged ring includes heating the substrate to a preset temperature and then forging through a die to obtain a forged ring with an integral structure.

[0012] In a feasible implementation, the cutting of the partial forging ring along the width direction to obtain twice the number of half rings of the partial forging ring includes cutting each forging ring of the partial forging ring along the width direction on a bisector in the length direction to obtain two corresponding half rings, wherein the two half rings have the same length.

[0013] In a feasible implementation, the braided friction welding device includes a first clamp and a second clamp, and the first clamp and / or the second clamp is connected to a vibration device; A transmission chain is provided between the first clamp and the second clamp, the transmission chain connects the first sprocket and the second sprocket, the first sprocket is located at the inner ring of the transmission chain, the second sprocket is located at the outer ring of the transmission chain, and the transmission chain is U-shaped; Two moving seats are fixedly installed on the transmission chain, a slide slot is provided on one side of the moving seat, both ends of the slide slot are open, the inner wall of the slide slot is paved with a conductive surface, an electric telescopic rod perpendicular to the moving seat is fixedly installed, the electric telescopic rod is electrically connected to the corresponding conductive surface, and the movable end of the electric telescopic rod is fixedly connected to one end of the supporting rod; Two fixing seats are provided between the first clamp and the second clamp, the fixing seats are fixedly connected to the first clamp or the second clamp, a conductive block is fixedly installed on one side of the fixing seat, the conductive block is electrically connected to the electric control device, the conductive block can pass through the slide slot, and when the conductive block is located in the slide slot, the conductive block is in contact with the slide slot; A support plate is provided between the first clamp and the second clamp, the support plate is fixedly connected to the first clamp or the second clamp, and the support plate is perpendicular to the first clamp or the second clamp, and a conveying device is provided on the support plate.

[0014] In a feasible implementation, the conveying device is a belt conveying device, the belt conveying device is connected to a power device, and a shifting plate is fixedly installed on the outer periphery of the conveying belt of the belt conveying device; A strip groove is provided at the bottom of the support plate, the strip groove communicates the inside and outside of the support plate, and the shifting plate passes through the strip groove.

[0015] In a feasible implementation, the conveying device includes two belt conveying devices, the two belt conveying devices are connected by a universal coupling, one of the belt conveying devices is connected to the power device, and a shifting plate is fixedly installed on the periphery of the conveyor belt of each belt conveying device; Two parallel strip grooves are formed at the bottom of the support plate, and each of the shifting plates of the belt conveyor passes through the corresponding strip groove.

[0016] In a feasible implementation, both ends of the slide slot and both ends of the conductive block are chamfered.

[0017] In a feasible implementation, the support plate is a U-shaped structure.

[0018] On the other hand, an embodiment of the present application provides a friction welded forged chain for a scraper conveyor, comprising alternatingly distributed forging rings and welding rings, and the chain is woven using the above-mentioned chain weaving process.

[0019] The embodiment of the present application provides a forged chain and weaving process for a scraper conveyor by friction welding. The forged ring is formed in one piece. Compared with the traditional direct bending forming of rods, the forged ring has higher material strength and denser internal structure, thereby improving the overall load-bearing capacity and service life of the chain; the welding ring formed by linear friction welding utilizes the mutual friction between the two half rings to generate friction heat. After reaching the preset temperature, the cutting surfaces of the two half rings are aligned, and the top forging pressure perpendicular to the cutting surface direction is applied to the half rings. The metals at the cutting surfaces diffuse and recrystallize with each other and finally become one. Compared with flash welding, the strength is higher and the structure is tighter. There will be no defects such as burns and cracks on the surface of the chain ring, and there will be no cold welding phenomenon; after cutting part of the forged ring into half rings, the alternating distribution of the forged rings and the welded rings is achieved by weaving friction welding equipment. Compared with traditional manual chain weaving and welding, this process greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a process flow of a friction-welded forged chain weaving process for a scraper conveyor provided in one embodiment of the present application; Figure 2 It is a structural schematic diagram of a friction welding device provided in one embodiment of the present application; Figure 3 This is a schematic diagram of the use status of the transmission chain and the support plate provided in one embodiment of the present application; Figure 4 is a schematic diagram of the use state of a transmission chain provided by another embodiment of the present application; Figure 5 yes Figure 3 Schematic diagram of the matching state of the conductive block and the slide slot; Figure 6 yes Figure 3 A schematic diagram of the side structure of the movable seat and the fixed seat; Figure 7 It is a schematic diagram of friction welding of a half ring; Figure 8 It is a schematic diagram of the matching state of the forging ring and the half ring; Fig. 9 It is a schematic diagram of the chain structure.

[0021] Description of reference numerals: 100-base; 200-column; 300-upsetting column; 400-vibration slide; 500-vibration fixture; 600-vibration cylinder; 700-upsetting slide; 800-upsetting fixture; 900-upsetting cylinder; 110-vibration-damping support member; 111-vibration-damping pad; 112-support member; 1-transmission chain; 2-first sprocket; 3-second sprocket; 4-moving seat; 5-slide; 6-electric telescopic rod; 7-support rod; 8-fixed seat; 9-conductive block; 10-support plate; 11-belt conveyor; 12-push plate; 13-strip groove; 14-universal coupling; 20-forged ring; 30-welded ring; 310-half ring. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0023] The following is an explanation of the terms used in the embodiments of the present application.

[0024] Linear friction welding: an advanced welding process. During the welding process, two welded parts in contact with each other, one of which moves back and forth in a straight line relative to the other welded part with a certain amplitude and frequency, and generates friction heat. When the temperature and deformation of the friction welding zone reach a certain level, the welded parts are aligned and top forging pressure is applied. The metals in the welding zone are welded together through mutual diffusion and recrystallization, completing the entire welding process.

[0025] Mining chain: a "ring" made of metal that is combined into a flexible structure through a certain weaving process. It is usually used in coal mine scraper conveyors, coal planers, drum coal mining machines and other mechanical traction chains, referred to as mining chains.

[0026] Chain link: The basic unit that makes up the aforementioned "mining chain", usually in the shape of a "long ring". Multiple chain links can form a chain according to certain processing methods and placement rules.

[0027] Forging ring: A processing technology for chain rings, which is to heat the metal and then use a mold to forge a chain ring with an appearance size and performance that meets the technical requirements. It has the advantage of high strength.

[0028] Welding ring: A processing technology for chain rings, which is to weld the originally open components into a closed ring structure by welding. Its external dimensions and performance must meet the technical requirements.

[0029] Flash welding: A typical resistance welding method that uses the heat generated on the contact surface when an electric current passes through the contact surface of two butted workpieces, heating and melting the butt surfaces. After an appropriate time, pressure is applied to the joint so that the entire area of ​​the two butt surfaces are firmly combined at the same time, completing the entire welding process.

[0030] Figure 1 It is a schematic diagram of a process flow of a friction-welded forged chain weaving process for a scraper conveyor provided in one embodiment of the present application; Figure 2 It is a structural schematic diagram of a friction welding device provided in one embodiment of the present application; Figure 3 This is a schematic diagram of the use status of the transmission chain and the support plate provided in one embodiment of the present application; Figure 4 is a schematic diagram of the use state of a transmission chain provided by another embodiment of the present application; Figure 5 yes Figure 3 Schematic diagram of the matching state of the conductive block and the slide slot; Figure 6 yes Figure 3 The side structure diagram of the movable seat and the fixed seat. Figures 1 to 6 As shown, the embodiment of the present application provides a forged chain weaving process for a scraper conveyor by friction welding, comprising: S100 , heating the base material and then forging it to obtain a forged ring 20 .

[0031] In some examples, the step S100 further includes: heating the substrate to a preset temperature and then forging it through a die to obtain a forged ring 20 with an integral structure.

[0032] S200 , cutting a portion of the forged ring 20 along the width direction to obtain half rings 310 twice the number of the portion of the forged ring 20 .

[0033] In some examples, the step S200 further includes: cutting each forged ring 20 of the partial forged ring 20 along the width direction on a bisector in the length direction to obtain two corresponding half rings 310 , wherein the two half rings 310 have the same length.

[0034] It should be noted that half of the forged rings 20 are cut to obtain half rings 310 having the same number as the initial forged rings 20 , and then the half rings 310 are welded in pairs to obtain welded rings 30 having the same number as the remaining forged rings 20 .

[0035] S300, the forged rings 20 and the half rings 310 are alternately arranged by preparing a friction welding device, and the two half rings 310 with two openings facing each other are friction welded into a welding ring 30, and the forged rings 20 and the welding rings 30 are alternately arranged to form a chain.

[0036] In the above embodiment, the forging ring 20 is integrally formed. Compared with the conventional bar material directly bent and formed, the forging ring 20 has higher material strength and a denser internal structure, thereby improving the overall load-bearing capacity and service life of the chain; the welding ring 30 formed by linear friction welding utilizes the mutual friction between the two half rings 310 to generate friction heat. After reaching the preset temperature, the cutting surfaces of the two half rings 310 are aligned, and a top forging pressure perpendicular to the cutting surface direction is applied to the half ring 310. The metals at the cutting surfaces diffuse and recrystallize with each other and finally become one. Compared with flash welding, the strength is higher and the structure is tighter. There will be no defects such as burns and cracks on the surface of the chain link, and there will be no cold welding phenomenon. After cutting part of the forging ring 20 into half rings 310, the alternating distribution of the forging ring 20 and the welding ring 30 is achieved by weaving a friction welding device. Compared with the traditional manual chain weaving and welding, this process greatly improves the production efficiency.

[0037] In addition, the present application can flexibly adjust the number and distribution of forging rings 20 and welding rings 30 according to actual needs, so as to meet the requirements for chain strength and flexibility in different application scenarios.

[0038] Figure 2 Schematic diagram of the structure of the friction welding equipment provided by one embodiment of the present application. Figure 2 As shown, in some examples, the braided friction welding device includes a base 100, a column 200 is fixedly installed at one end of the top surface of the base 100, and an upsetting column 300 is fixedly installed at the other end of the top surface of the base 100; A vibration slide 400 is fixedly installed on one side of the column 200 facing the upset column 300, and a vibration fixture 500 is movably installed on the vibration slide 400. The vibration fixture 500 is connected to the base 100 through a vibration cylinder 600, and the vibration cylinder 600 is used to make the vibration fixture 500 move along the vibration slide 400 perpendicular to the top surface of the base 100; A top forging slide 700 is fixedly installed on the top surface of the base 100, and the top forging slide 700 is located between the column 200 and the top forging column 300. A top forging fixture 800 is movably installed on the top forging slide 700, and the top forging fixture 800 is connected to the top forging column 300 through a top forging cylinder 900. The top forging cylinder 900 is used to make the top forging fixture 800 move along the top forging slide 700 perpendicular to the vibration fixture 500.

[0039] The front and rear sides of the base 100 are respectively fixedly mounted with vibration-damping support members 110 .

[0040] The vibration-damping support member 110 includes a vibration-damping pad 111 and a support member 112 . The vibration-damping pad 111 is located at the top of the support member 112 . The support member 112 is perpendicular to the extension direction of the bottom surface of the base 100 .

[0041] Figure 7 This is a schematic diagram of friction welding of a half ring. Figure 7 As shown, in the above embodiment, the user puts the two half rings 310 to be welded into the vibration fixture 500 and the upsetting fixture 800 respectively, so that the welding surfaces of the two half rings 310 to be welded are opposite and clamped, and then the upsetting fixture 800 is sent to the vibration fixture 500 by the upsetting cylinder 900, so that the welding surfaces of the two half rings 310 to be welded are in contact with each other, and then the vibration fixture 500 is vibrated up and down at a high frequency by the vibration cylinder 600, so that the welding surfaces of the two half rings 310 to be welded produce plastic flow, and then the welding surfaces of the two half rings 310 to be welded are aligned by the vibration cylinder 600, and finally pressure is applied by the upsetting cylinder 900, so that the two half rings 310 to be welded are welded together, so that a high-performance and high-quality weld comparable to that of a forged structure can be obtained, thereby obtaining a chain link with a higher international quality standard, and the welding process is free of smoke and flash, is more green and environmentally friendly, and is also conducive to improving the quality of the working environment.

[0042] It should be noted that a row of vibration-damping support members 110 are respectively arranged on the front and rear sides of the base 100, and the vibration-damping support members 110 located below the columns 200 and the top forging columns 300 are of a three-piece structure, that is, a vibration-damping support member 110 is composed of three support members 112 and three shock-absorbing pads 111. In some examples, the three support members 112 are distributed in an equilateral triangle, and the vibration-damping support member 110 located in the middle can adopt a single-piece structure, that is, it is composed of a support member 112 and a shock-absorbing pad 111.

[0043] It is easy to understand that the vibration at the column 200 and the top forging column 300 is relatively large, and the probability of deformation at the corresponding position of the base 100 is also relatively high. The vibration reduction support 110 of the triple structure can increase the maximum load of the vibration reduction support 110 at this location, and the load is evenly distributed to each shock-absorbing pad 111, so the support stability is higher. The triple structure is used in conjunction with the single structure, which increases the number of support points and meets the demand for vibration reduction support without increasing the support length, which is more economical and applicable.

[0044] Figure 3 Schematic diagram of the use status of the transmission chain and the support plate provided in one embodiment of the present application. Figure 3 As shown, in some examples, the braided friction welding device includes a first clamp and a second clamp, and the first clamp and / or the second clamp are connected to a vibration device; It should be noted that the first clamp and the second clamp are the vibration clamp 500 and the upset clamp 800 in the aforementioned embodiment, and the vibration device is the vibration cylinder 600 in the aforementioned embodiment.

[0045] In order to facilitate the later separation of the half ring 310 clamped by the first clamp and the second clamp, the tops of the first clamp and the second clamp are open, or the first clamp and the second clamp respectively include two separable parts, one upper and one lower.

[0046] A transmission chain 1 is provided between the first clamp and the second clamp, the transmission chain 1 connects a first sprocket 2 and a second sprocket 3, the first sprocket 2 is located at the inner ring of the transmission chain, the second sprocket 3 is located at the outer ring of the transmission chain, and the transmission chain 1 is U-shaped; It should be noted that the first sprocket 2 and the second sprocket 3 are both fixedly connected to the first fixture or the second fixture, and the first sprocket 2 and / or the second sprocket 3 are connected to a power device, and the power device is fixedly mounted on the first fixture or the second fixture.

[0047] It is easy to understand that when one of the first clamp and the second clamp is connected to the vibration device, the first sprocket 2, the second sprocket 3 and the power device are arranged on the clamp that is not connected to the vibration device.

[0048] Two moving seats 4 are fixedly installed on the transmission chain 1, a slide slot 5 is provided on one side of the moving seat 4, both ends of the slide slot 5 are open, the inner wall of the slide slot 5 is paved with a conductive surface, an electric telescopic rod 6 perpendicular to the moving seat 4 is fixedly installed, the electric telescopic rod 6 is electrically connected to the corresponding conductive surface, and the movable end of the electric telescopic rod 6 is fixedly connected to one end of a supporting rod 7; It is easy to understand that the electric telescopic rod 6 and the supporting rod 7 are coaxially arranged, and the two face the linear friction welding area. For the convenience of distinction, the moving seat 4 is divided into a first moving seat and a second moving seat, and the two move synchronously. When the first moving seat moves to the previous stop position of the second moving seat, the second moving seat moves to the previous stop position of the first moving seat.

[0049] In other examples, refer to Figure 4 As shown, the two moving seats 4 divide the transmission chain 1 into two equal parts, that is, the effective length from the first moving seat along the transmission chain 1 to the second moving seat is equal to the effective length from the second moving seat along the transmission chain 1 to the first moving seat.

[0050] In other examples, the support rod 7 may not be coaxially arranged with the electric telescopic rod 6, but the other end of the support rod 7 may be slightly tilted upward, so as to prevent the forging ring 20 from separating from the support rod 7 during the process of moving the forging ring 20.

[0051] Two fixing seats 8 are provided between the first clamp and the second clamp, and the fixing seats 8 are fixedly connected to the first clamp or the second clamp. A conductive block 9 is fixedly installed on one side of the fixing seat 8, and the conductive block 9 is electrically connected to the electric control device. The conductive block 9 can pass through the slide slot 5, and when the conductive block 9 is located in the slide slot 5, the conductive block 9 contacts the slide slot 5. It should be noted that the fixing seat 8 is also arranged on a fixture not connected to the vibration device, and the fixing seat 8 is arranged at the U-shaped opening of the transmission chain 1, and the electric control device is used to provide power to the electric telescopic rod 6 and control the extension and retraction of the electric telescopic rod 6.

[0052] A support plate 10 is provided between the first clamp and the second clamp. The support plate 10 is fixedly connected to the first clamp or the second clamp and is perpendicular to the first clamp or the second clamp. A conveying device is provided on the support plate 10 .

[0053] It should be noted that the support plate 10 is disposed on a fixture connected to the vibration device, and the depth of the support plate 10 is approximately 1 / 3 of the length of the forging ring 20 .

[0054] Figure 8 It is a schematic diagram of the matching state of the forging ring and the half ring; Fig. 9 This is a schematic diagram of the chain structure. Figure 7 and Figure 8As shown, in the above embodiment, the two half rings 310 are placed in the first clamp and the second clamp respectively, the forging ring 20 is placed in the support plate 10, and the forging ring 20 is moved toward the opposite clamp by the conveying device. The setting position of the support plate 10 is staggered with the setting position of the half ring 310. With the first clamp and the second clamp approaching, the forging ring 20 can be placed between the two half rings 310. At this time, the conductive block 9 on the right side is located in the slide groove 5 and contacts the conductive surface laid in the slide groove 5. The electric control device supplies power to the electric telescopic rod 6 through the conductive block 9 and the conductive surface and controls its extension, so that the support rod 7 probes into the forging ring 20, and then the vibration device works to perform linear friction welding on the cut surfaces of the two half rings 310 to form Welding ring 30, after welding is completed, the power device starts to work, driving the transmission chain 1 to move, and the moving seat 4 thereon moves accordingly, and the first moving seat drives the forging ring 20 to move. When the bottom of the inner ring of the forging ring 20 contacts the welding ring 30, it drives the welding ring 30 to move. According to the movement trajectory of the transmission chain 1, the forging ring 20 moves upward first, and the welding ring 30 connected thereto drops downward after being separated from the first clamp and the second clamp. Then the forging ring 20 and the welding ring 30 move downward until the first moving seat moves to the fixed seat 8 on the left. At this time, the second moving seat moves to the fixed seat 8 on the right, and the above process is repeated. At this time, the electric telescopic rod 6 on the first moving seat shrinks, and the second moving seat drives the forging ring 20 and the welding ring 30 to move, and this alternating cycle is carried out. The braiding friction welding equipment provided in the above embodiment can automatically complete the braiding and welding of the chain, enable the welding ring 30 to obtain a high-performance and high-quality weld comparable to that of a forged structure, improve the strength and service life of the entire chain, and fill the gap in chain braiding in the field of linear friction welding, which is beneficial to improving the production efficiency of friction welded forged chains, reducing manual intervention, and reducing the probability of production safety accidents.

[0055] In some examples, the conveying device is a belt conveying device 11, the belt conveying device 11 is connected to a power device, and a paddle 12 is fixedly installed on the outer periphery of the conveying belt of the belt conveying device 11; A strip groove 13 is formed at the bottom of the support plate 10 . The strip groove 13 connects the inside and outside of the support plate, and the shifting plate 12 passes through the strip groove 13 .

[0056] It should be noted that the belt conveyor 11 uses a V-type pulley and a V-type belt, which has higher stability than ordinary conveyor belts. The power device uses a motor, and a specific model can be selected according to actual conditions, such as a stepper motor, etc. This application does not limit this, and it can also be used in conjunction with a reducer, etc.

[0057] In the above embodiment, the paddle 12 passes through the strip groove 13 and contacts the forging ring 20 in the support plate 10. When the conveyor belt of the belt conveyor device 11 is working, the paddle 12 thereon drives the forging ring 20 to move. Through the cooperation of the belt conveyor device 11 and the paddle 12, the forging ring 20 is effectively moved. The mechanized conveying process reduces manual intervention, improves production efficiency, reduces the need for manual handling and operation, and reduces the risk of work-related injuries.

[0058] In order to ensure the stability of the movement of the forging ring 20, specifically, two mutually parallel paddles 12 can be fixedly installed on the outer periphery of the conveyor belt of the belt conveyor device 11, and the distance between the two paddles 12 is slightly larger than the thickness of the forging ring 20, so as to form a mobile clamping effect. Alternatively, the paddle 12 can be designed to be U-shaped, or other methods can be used, which is not limited in this application.

[0059] In some examples, the conveying device includes two belt conveying devices 11, the two belt conveying devices 11 are connected by a universal coupling 14, one of the belt conveying devices 11 is connected to the power device, and a paddle 12 is fixedly installed on the periphery of the conveyor belt of each belt conveying device 11; Two parallel strip grooves 13 are formed at the bottom of the support plate 10 , and the paddle 12 of each belt conveyor 11 passes through the corresponding strip groove 13 .

[0060] It is easy to understand that the two belt conveyors 11 are evenly distributed at the bottom of the pallet 10, for example, symmetrically distributed with respect to the center line of the extension direction of the pallet 10. The two belt conveyors 11 and the motor are fixedly connected to the pallet 10 or the corresponding clamp.

[0061] In the above embodiment, the two belt conveyors 11 simultaneously drive the forging ring 20 to move, the force application points are increased and evenly distributed on both sides of the forging ring 20, the movement of the forging ring 20 is more stable, and the two belt conveyors 11 are linked by the universal coupling 14, which can reduce the setting of the power device and help control costs.

[0062] In some examples, both ends of the slide groove 5 and both ends of the conductive block 9 are chamfered.

[0063] In the above embodiment, the chamfer design can make it easier for the conductive block 9 to be inserted into and removed from the slide slot 5 .

[0064] In some examples, the support plate 10 is a U-shaped structure.

[0065] In the above embodiment, the U-shaped support plate 10 can fit the shape of the forging ring 20 , and can better limit the linear movement of the forging ring 20 along the extension direction of the support plate 10 , thereby improving the movement stability of the forging ring 20 .

[0066] On the other hand, refer to Fig. 9 As shown, an embodiment of the present application provides a friction welded forged chain for a scraper conveyor, comprising alternately distributed forging rings 20 and welding rings 30, and the chain is woven by the above-mentioned chain weaving process.

[0067] In the above embodiment, the chain is composed of alternately distributed forging rings 20 and welding rings 30. The forging rings 20 are forged in one piece, and the welding rings 30 are formed by dividing the forging ring 20 into two and then linearly friction welding. The strength of the weld is comparable to the strength of the forged structure. Compared with the traditional direct bending forming of the bar material, it has higher material strength and a denser internal structure, thereby improving the overall load-bearing capacity and service life of the chain.

[0068] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0069] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A process for weaving a forged chain by friction welding for a scraper conveyor, characterized in that: include: The base material is heated and then forged to obtain a forged ring; Cutting a portion of the forged rings along the width direction to obtain half rings twice the number of the portion of the forged rings; The forged rings and the half rings are arranged alternately by weaving a friction welding device, and the two half rings with openings facing each other are friction welded into a welded ring. The forged rings and the welded rings are arranged alternately to form a chain.

2. The process for making a friction welded forged chain for a scraper conveyor according to claim 1, characterized in that: The method of heating the substrate and then forging it to obtain a forged ring includes heating the substrate to a preset temperature and then forging it through a die to obtain a forged ring with an integrated structure.

3. The process for making a friction welded forged chain for a scraper conveyor according to claim 1, characterized in that: Cutting a portion of the forged rings along the width direction to obtain twice the number of half rings of the portion of the forged rings includes cutting each forged ring of the portion of the forged rings along the width direction on a bisector of the length direction to obtain two corresponding half rings, wherein the two half rings have the same length.

4. The process for weaving a friction welded forged chain for a scraper conveyor according to any one of claims 1 to 3, characterized in that: The braided friction welding device comprises a first clamp and a second clamp, and the first clamp and / or the second clamp are connected to a vibration device; A transmission chain (1) is provided between the first clamp and the second clamp, the transmission chain (1) connecting the first sprocket (2) and the second sprocket (3), the first sprocket (2) being located at the inner ring of the transmission chain (1), the second sprocket (3) being located at the outer ring of the transmission chain (1), and the transmission chain (1) being U-shaped; Two movable seats (4) are fixedly mounted on the transmission chain (1), a slide groove (5) is provided on one side of the movable seat (4), both ends of the slide groove (5) are open, the inner wall of the slide groove (5) is paved with a conductive surface, an electric telescopic rod (6) is fixedly mounted on the movable seat (4) and is perpendicular to the movable seat (4), the electric telescopic rod (6) is electrically connected to the corresponding conductive surface, and the movable end of the electric telescopic rod (6) is fixedly connected to one end of a support rod (7); Two fixing seats (8) are provided between the first clamp and the second clamp, the fixing seats (8) are fixedly connected to the first clamp or the second clamp, a conductive block (9) is fixedly mounted on one side of the fixing seat (8), the conductive block (9) is electrically connected to the electric control device, the conductive block (9) can pass through the slide groove (5), and when the conductive block (9) is located in the slide groove (5), the conductive block (9) is in contact with the slide groove (5); A support plate (10) is provided between the first clamp and the second clamp, the support plate (10) is fixedly connected to the first clamp or the second clamp, and the support plate (10) is perpendicular to the first clamp or the second clamp, and a conveying device is provided on the support plate (10).

5. The process for making a friction welded forged chain for a scraper conveyor according to claim 4, characterized in that: The conveying device is a belt conveying device (11), the belt conveying device (11) is connected to a power device, and a shifting plate (12) is fixedly installed on the outer periphery of the conveying belt of the belt conveying device (11); A strip groove (13) is provided at the bottom of the support plate (10), the strip groove (13) communicates with the inside and outside of the support plate (10), and the shifting plate (12) passes through the strip groove (13).

6. The process for making a friction welded forged chain for a scraper conveyor according to claim 4, characterized in that: The conveying device comprises two belt conveying devices (11), the two belt conveying devices (11) are connected via a universal coupling (14), one of the belt conveying devices (11) is connected to a power device, and a shifting plate (12) is fixedly installed on the outer periphery of the conveying belt of each belt conveying device (11); Two mutually parallel strip grooves (13) are provided at the bottom of the support plate (10), and the shifting plate (12) of each belt conveying device (11) passes through the corresponding strip groove (13).

7. The process for making a friction welded forged chain for a scraper conveyor according to claim 4, characterized in that: Both ends of the slide groove (5) and both ends of the conductive block (9) are chamfered.

8. The process for making a friction welded forged chain for a scraper conveyor according to claim 4, characterized in that: The support plate (10) is a U-shaped structure.

9. A friction welded forged chain for a scraper conveyor, characterized in that: The chain comprises forged rings (20) and welded rings (30) which are alternately distributed, and the chain is made by using the chain making process according to any one of claims 1 to 8.

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