A plate conveying roller with a semiconductor thermoelectric power generation device and a cooling device

Abstract

The present application relates to a kind of plate conveying roller with semiconductor thermoelectric generator and cooling device, belong to plate conveying equipment technical field, including roller, with the power transmission component of roller connection, semiconductor thermoelectric generator in the inside of roller and cooling device located in the outside of roller.The present application adds semiconductor power generation device and cooling device in plate conveying roller, not only can the heat energy generated in plate conveying process be utilized, improves the energy utilization rate in plate conveying process, but also can reduce the temperature of plate conveying roller, reduces the equipment damage caused by excessively high temperature in transmission process and the aging problem caused by long-term high temperature.Makes that production energy consumption reduces, equipment maintenance cost reduces, satisfies the use demand of general user, and the popularization prospect is wide.

Description

Technical Field

[0001] This invention relates to the field of sheet metal conveying equipment technology, and more specifically to a sheet metal conveying roller conveyor with a semiconductor thermoelectric generator and a cooling device. Background Technology

[0002] With the rapid development of industry, energy consumption is playing an increasingly important role in modern industrial production, becoming one of the key factors restricting my country's industrial output. The conveying of sheet metal is also developing towards lower energy consumption. While my country leads the world in sheet metal conveying equipment, it still faces several problems, including high energy consumption and low utilization rates. During sheet metal transportation, the conveyor rollers generate a significant amount of heat. This heat not only reduces the energy efficiency of sheet metal conveying but also lowers the quality of rolled sheet products. Therefore, there is an urgent need for relevant mechanical equipment to solve this problem and utilize the excess heat.

[0003] Existing technologies primarily utilize radiators to transfer heat away from this energy source. This approach only addresses the issue of excessively high temperatures during production but fails to utilize this energy effectively or improve energy efficiency. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a sheet material conveying roller with a semiconductor thermoelectric generator and a cooling device. By introducing the thermoelectric generator and the cooling device into the sheet material conveying roller, not only can the heat generated during the rotation of the sheet material conveying roller be utilized to improve energy utilization, but the temperature of the sheet material conveying roller can also be reduced, thereby reducing equipment damage caused by excessive temperature during transmission and aging problems caused by long-term high temperature.

[0005] The technical solution adopted in this invention is as follows:

[0006] This invention proposes a sheet metal conveyor roller with a semiconductor thermoelectric generator and a cooling device, comprising: a roller, a power transmission assembly connected to the roller, a semiconductor thermoelectric generator located inside the roller, and a cooling device located outside the roller; wherein:

[0007] The roller conveyor includes: a steel pipe shell in the shape of a roller, a hollow steel pipe in the shape of a roller located inside the steel pipe shell, a front cover covering the front end of the steel pipe shell, and a rear cover covering the rear end of the steel pipe shell; the hollow steel pipe is connected to the front cover and the rear cover at its two ends respectively by embedded hexagonal head screws.

[0008] The semiconductor thermoelectric generator includes: an upper pressure plate fixing device, a lower pressure plate fixing device, a semiconductor power generation chip, an intermediate ring, and a conductive slip ring; the upper pressure plate fixing device and the lower pressure plate fixing device are fixedly installed between the hollow steel pipe and the steel pipe shell by a flat key and screws; the semiconductor power generation chip is installed between the upper pressure plate fixing device and the lower pressure plate fixing device, and is in contact with the lower pressure plate fixing device by thermally conductive silicone grease, and is at a preset distance from the upper pressure plate fixing device; the semiconductor power generation chip and the conductive slip ring are connected by a high-temperature resistant wire, and the conductive slip ring is fixedly connected to the front end cover by the intermediate ring;

[0009] The cooling assembly includes a water pipe assembly, a water tank, and a water pump; water pipe assemblies are connected to both ends of the hollow steel pipe, one end of the water pipe assembly is connected to one end of the water tank, the other end of the water tank is connected to one end of the water pump, and the other end of the water pump is connected to the water pipe assembly at the other end of the hollow steel pipe.

[0010] Furthermore, the roller conveyor is in multiple sets.

[0011] Furthermore, the number of semiconductor thermoelectric generators in each set of roller conveyors is multiple.

[0012] Furthermore, multiple sets of semiconductor thermoelectric generators are symmetrically distributed with the outer circumference of the hollow steel tube as a reference; guide keys are provided between different semiconductor generators in the same row, which separate the semiconductor generators in pairs and are fixed by screws.

[0013] Furthermore, the terminals of multiple semiconductor power generating cells face the same direction. In the same upper and lower pressure plate fixing device, the semiconductor power generating cells are connected in series by high-temperature resistant wires. In different upper and lower pressure plate fixing devices, the semiconductor power generating cells are connected in parallel by high-temperature resistant wires.

[0014] Furthermore, the power transmission assembly includes an engine, a double-row gear, a single-row gear chain, a bearing housing, a bearing retainer, and a bearing; the bearing housing and bearing are configured as a pair, and the bearing housing, bearing, and bearing retainer are fixedly connected. Each set of roller conveyors has two pairs of bearing housings and bearings, which are placed at both ends of the roller conveyor respectively. The bearing located at the front end is fixedly connected to the bearing retainer through a stepped structure on the front end cover, and the bearing located at the rear end is fixedly connected to the bearing retainer through a stepped structure on the rear end cover. The bearing located at the rear end is connected to the engine through a transverse double-row gear and a longitudinal single-row gear chain. The front end cover and the rear end cover act as shafts to transmit power from the engine to the roller conveyor.

[0015] Furthermore, the water pipe in the water pipe assembly has a radius lower than the inner diameter of the front and rear end caps, and low-friction gaskets are used to fill the water pipe with the inner diameter of the front and rear end caps.

[0016] Furthermore, the water pipe assembly includes one or more of the following: straight water pipe, deflecting water pipe, and T-shaped water pipe.

[0017] Furthermore, the flat key is set in the middle section and on both sides of the lower pressure plate fixing device, and is fixed by screws. It contacts the upper pressure plate fixing device and the lower pressure plate fixing device, and at the same time, it engages with the front and rear end cover blades respectively.

[0018] Furthermore, the conductive slip ring is replaced by a magnetically coupled resonant power transmission device.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] Compared to traditional sheet metal conveyor rollers, this invention introduces a thermoelectric generator and a cooling device into the conveyor rollers. This converts the heat generated by the rotation of the equipment during sheet metal transport into electrical energy, while simultaneously cooling the equipment to a suitable operating temperature. This reduces energy consumption in sheet metal rolling production, improves energy efficiency, and extends equipment lifespan. The equipment is simple to operate, has low maintenance and overall production costs, meets the needs of a wide range of users, and has broad application and promotion prospects. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an overall outline view of a plate conveying roller conveyor with a semiconductor thermoelectric generator and a cooling device in an embodiment of the present invention.

[0023] Figure 2 A top view of a sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device in an embodiment of the present invention;

[0024] Figure 3 This is a partial cross-sectional projection view of the roller conveyor in an embodiment of the present invention;

[0025] Figure 4 This is a front half-sectional view of the roller conveyor in an embodiment of the present invention;

[0026] Figure 5 This is a right-side cross-sectional view of the roller conveyor in an embodiment of the present invention. Figure 1 ;

[0027] Figure 6 This is a right-side cross-sectional view of the roller conveyor in an embodiment of the present invention. Figure 2 ;

[0028] Figure 7 Front view of a semiconductor solar cell and its mounting components;

[0029] Figure 8 Semiconductor solar cells and their mounting components Figure 7 Half-section view;

[0030] In the diagram: 1. Steel pipe outer shell; 2. Front end cover; 3. Intermediate ring; 4. Conductive slip ring; 5. Rear end cover; 6. Water tank; 7. Water pump; 8. Engine; 9. Double row gear; 10. Single row gear chain; 11. Embedded hexagonal head screw; 12. Screw; 13. Nut; 101. Upper pressure plate fixing device; 102. Lower pressure plate fixing device; 103. Semiconductor power generation chip; 104. Guide key; 105. Key; 106. Screw; 201. Hollow steel pipe; 202. Water pipe; 203. Deflecting water pipe; 204. T-shaped water pipe; 301. Bearing seat; 302. Bearing fastener; 303. Bearing. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] like Figures 1 to 8 As shown, this embodiment of the invention provides a sheet metal conveying roller conveyor with a semiconductor thermoelectric generator and a cooling device. The sheet metal conveying roller conveyor includes: a roller conveyor, a power transmission component connected to the roller conveyor, a semiconductor thermoelectric generator located inside the roller conveyor, and a cooling device located outside the roller conveyor.

[0034] in:

[0035] The roller conveyor includes: a steel pipe shell 1, a hollow steel pipe 201 located inside the steel pipe shell 1, a front cover 2, and a rear cover 5. Both the steel pipe shell 1 and the hollow steel pipe 201 are roller-shaped. The contact ends of the front cover 2 and the rear cover 5 with the hollow steel pipe 201 have a fan-shaped structure, and the gaps between the blades fit with the ends of the semiconductor power generation chip 103 and its fixing components. The blades of the front cover 2 have wire holes. The front cover 2 covers the front end of the steel pipe shell 1, and the rear cover 5 covers the rear end of the steel pipe shell 1. The hollow steel pipe 201 is connected to the front cover 2 and the rear cover 5 on its left and right sides respectively by embedded hexagonal head screws 11. In practical applications, there can be multiple sets of roller conveyors.

[0036] The power transmission assembly includes an engine 8, a double-row gear 9, a single-row gear chain 10, a bearing housing 301, a bearing fastener 302, and a bearing 303. The bearing housing 301 and bearing 303 are configured as a pair, and the bearing housing 301, bearing 303, and bearing fastener 302 are fixedly connected. There are two pairs on a set of roller conveyors, placed at opposite ends of the roller conveyor. The bearing 303 at the front end is fixedly connected to the bearing fastener 302 via a stepped structure on the front end cover 2, and the bearing 303 at the rear end is fixedly connected to the bearing fastener 302 via a stepped structure on the rear end cover 5. The bearing 303 at the rear end is connected to the engine 8 via a transverse double-row gear 9 and a longitudinal single-row gear chain 10. The front end cover 2 and the rear end cover 5 act as shafts, transmitting power from the engine 8 to the roller conveyor. The rotation of the roller conveyor enables the conveying of the sheet metal.

[0037] The thermoelectric generator is located inside the roller conveyor. Multiple sets of thermoelectric generators are present in each roller conveyor group. Preferably, in this embodiment, there are four sets of thermoelectric generators in each roller conveyor group, including: an upper pressure plate fixing device 101, a lower pressure plate fixing device 102, a thermoelectric generator sheet 103, a guide key 104, a key 105, and screws 106. The upper pressure plate fixing device 101 and the lower pressure plate fixing device 102 are installed between the hollow steel pipe 201 and the steel pipe outer shell 1. The lower pressure plate fixing device 102 is in contact with the hollow steel pipe 201, and the upper pressure plate fixing device 101 is in contact with the steel pipe outer shell 1. The lower pressure plate fixing device 102 is located directly below the upper pressure plate fixing device 101. The lower pressure plate fixing device 102 has an arc-shaped flat surface near the hollow steel pipe end and a keyway at the end away from the hollow steel pipe end. The upper pressure plate fixing device 101 has an arc-shaped flat surface near the steel pipe outer shell end, with screw holes on the flat surface; a keyway is provided at the end away from the steel pipe outer shell end. The upper pressure plate fixing device 101 and the lower pressure plate fixing device 102 are fixed in position by a flat key 105 and screws 106. The flat key 105 is located between the upper pressure plate fixing device 101 and the lower pressure plate fixing device 102, specifically in the middle section and on both sides of the lower pressure plate fixing device 102. The flat key 105 is fixed by screws 106 and contacts the upper pressure plate fixing device 101 and the lower pressure plate fixing device 102, and also engages with the front and rear end cover blades respectively. The upper pressure plate fixing device 101 and the lower pressure plate fixing device 102 are embedded into the front end cover 2 and the rear end cover 5 by fitting together. The outer radius of the hollow steel pipe 201 is the same as the radius of the arc surface near the side end of the lower pressure plate fixing device 102. The inner radius of the steel pipe shell 1 is the same as the radius of the arc surface at the contact end of the upper pressure plate fixing device 101 and the steel pipe shell 1.

[0038] Semiconductor power generation wafers 103 are installed between the upper pressure plate fixing device 101 and the lower pressure plate fixing device 102, and are in contact with the lower pressure plate fixing device 102 via thermally conductive silicone grease, while being at a predetermined distance from the upper pressure plate fixing device 101. The semiconductor power generation wafers 103 and their fixing components are symmetrically distributed with reference to the outer circumference of the hollow steel pipe 201. Guide keys 104 are provided between different semiconductor power generation wafers 103 in the same row, separating the semiconductor power generation wafers 103 in pairs. The guide keys 104 are fixed by screws 106. The terminals of multiple semiconductor power generation wafers 103 face the same direction. In the same upper and lower pressure plate fixing device, the semiconductor power generation wafers 103 are connected in series via high-temperature resistant wires; in different upper and lower pressure plate fixing devices, the semiconductor power generation wafers 103 are connected in parallel via high-temperature resistant wires. In one set of roller conveyors of this embodiment, four sets of semiconductor thermoelectric generators are configured, and each set, i.e., the same upper and lower pressure plate fixing device, can contain multiple semiconductor power generation wafers.

[0039] The intermediate ring 3 is a hollow structure with threaded holes and wire holes at both ends. The threaded holes connect the front cover 2, intermediate ring 3, and conductive slip ring 4 together via screws 12 and nuts 13. The wire holes allow multiple wires from inside the device to enter the intermediate ring and connect together, thereby connecting to the conductive slip ring. Specifically, wires from inside the roller conveyor enter the intermediate ring 3 through the wire holes on the front cover 2, where they are connected into positive and negative wires. These wires then connect to the conductive slip ring 4 through the wire holes at the other end of the channel, and electrical energy is transmitted through the conductive slip ring 4. In another embodiment, the conductive slip ring 4 can be replaced by a magnetically coupled resonant power transmission device.

[0040] The semiconductor power generation chip 103 is connected to the conductive slip ring 4 via a high-temperature resistant wire. The end at the rear cover 5 is the negative terminal, furthest from the conductive slip ring 4, while the end at the front cover 2 is the positive terminal, closest to the conductive slip ring 4. The high-temperature resistant wire at the negative terminal is connected to the front cover 2 via a wire positioning ring welded to the lower pressure plate fixing device 102, and then connected to the conductive slip ring 4 through a wire hole on the front cover 2. The heat generated by the roller rotation during the plate transport process can be converted into electrical energy by the semiconductor power generation chip, and this electrical energy is transferred to the battery for storage via a wire at the conductive slip ring 4. The battery capacity needs to be adjusted according to the total number of semiconductor power generation chips used.

[0041] The cooling assembly is located outside the roller conveyor and includes a water pipe assembly, a water tank 6, and a water pump 7. Water pipe assemblies are connected to both ends of the hollow steel pipe 201. One end of the water pipe assembly is connected to one end of the water tank 6, and the other end of the water tank 6 is connected to one end of the water pump 7. The other end of the water pump 7 is connected to the water pipe assembly at the other end of the hollow steel pipe 201. Cold water can be circulated through the hollow steel pipe 201 to achieve water cooling of the roller conveyor. The water pipes in the water pipe assembly have a radius lower than the inner diameter of the front and rear end covers. The water pipes do not rotate during operation, and low-friction gaskets are used to fill the gaps between the water pipes and the inner diameters of the front and rear end covers. Multiple sets of roller conveyors can be set according to actual needs. Water pipe assemblies can be added and adjusted between different roller conveyors to achieve cooling for all roller conveyors. The water pipe assembly can include straight water pipes 202, deflecting water pipes 203, T-shaped water pipes 204, etc. By combining these water pipes, a compact structure with a small footprint can be formed. The volume of water tank 6 can be calculated based on the actual working conditions, and different specifications of water tanks can be selected; the water pump 7 can also be selected according to the total water demand flow rate, so as to meet the usage requirements.

[0042] In the above embodiments, there is no relative movement except for the outer shell of the conductive slip ring, and the roller body rotates at high speed as a whole; the power transmission device on the conductive slip ring is fixed; during the plate production process, the engine delivers power to make the roller conveyor rotate as a whole, and the high-temperature plate comes into contact with the roller conveyor during cooling and transportation. These two processes cause the temperature of the plate conveying roller conveyor to rise; the semiconductor power generation chip placed inside the plate conveying roller conveyor senses the temperature change and generates electrical energy, which is transmitted out for utilization through the conductive slip ring; during operation, the water pump draws water from the water tank and transmits it into the roller conveyor, and the hollow steel pipe transfers excess heat to the water. This not only ensures that the semiconductor power generation chip reaches a reasonable operating temperature, but also ensures that the temperature difference inside the plate conveying roller conveyor reaches a reasonable value; the heated water is transmitted back to the water tank through the other end of the plate conveying roller conveyor, and the entire cooling process forms a closed loop. By adding a semiconductor power generation device and a cooling device to the plate conveying roller conveyor, this invention not only utilizes the heat energy generated during plate conveying, improving the energy utilization rate during plate conveying, but also reduces the temperature of the plate conveying roller conveyor, reducing equipment damage caused by excessive temperature during transportation and aging problems caused by long-term high temperature. This reduces energy consumption in production and equipment maintenance costs, meets the needs of a wide range of users, and has broad prospects for promotion.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sheet metal conveyor roller with a semiconductor thermoelectric generator and a cooling device, characterized in that, include: The roller conveyor, a power transmission assembly connected to the roller conveyor, a semiconductor thermoelectric generator located inside the roller conveyor, and a cooling device located outside the roller conveyor; wherein: The roller conveyor includes: a steel pipe shell in the shape of a roller, a hollow steel pipe in the shape of a roller located inside the steel pipe shell, a front cover covering the front end of the steel pipe shell, and a rear cover covering the rear end of the steel pipe shell; the hollow steel pipe is connected to the front cover and the rear cover at both ends respectively by embedded hexagonal head screws; the contact ends of the front cover and the rear cover with the hollow steel pipe have a fan-shaped structure, the gap between the blades fits with the end of the semiconductor power generation chip and its fixing component, and the blades of the front cover have wire holes; The semiconductor thermoelectric generator includes: an upper pressure plate fixing device, a lower pressure plate fixing device, a semiconductor power generation chip, an intermediate ring, and a conductive slip ring. The upper and lower pressure plate fixing devices are fixedly installed between the hollow steel pipe and the steel pipe shell by a flat key and screws. The semiconductor power generation chip is installed between the upper and lower pressure plate fixing devices, and contacts the lower pressure plate fixing device through thermally conductive silicone grease, while maintaining a preset distance from the upper pressure plate fixing device. The semiconductor power generation chip and the conductive slip ring are connected by a high-temperature resistant wire, and the conductive slip ring is fixedly connected to the front end cover through the intermediate ring. The lower pressure plate fixing device contacts the hollow steel pipe, and the upper pressure plate fixing device contacts the steel pipe shell. The lower pressure plate fixing device is located directly below the upper pressure plate fixing device. The lower pressure plate fixing device has an arc-shaped plane at the end near the hollow steel pipe and a keyway at the end away from the hollow steel pipe. The upper pressure plate fixing device has an arc-shaped plane at the end near the steel pipe shell, with screw holes on the plane. A keyway is also present at the end away from the steel pipe shell. The cooling assembly includes a water pipe assembly, a water tank, and a water pump. Water pipe assemblies are connected to both ends of a hollow steel pipe. One end of the water pipe assembly is connected to one end of the water tank, the other end of the water tank is connected to one end of the water pump, and the other end of the water pump is connected to the water pipe assembly at the other end of the hollow steel pipe. The radius of the water pipes in the water pipe assembly is lower than the inner diameter of the front and rear end caps, and low-friction gaskets are filled between the water pipes and the inner diameter of the front and rear end caps.

2. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 1, characterized in that, The roller conveyor consists of multiple sets.

3. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 2, characterized in that, The number of semiconductor thermoelectric generators in each set of roller conveyors is multiple.

4. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 3, characterized in that, Multiple sets of semiconductor thermoelectric generators are symmetrically distributed with the outer circumference of the hollow steel tube as the reference; guide keys are provided between different semiconductor generators in the same row, which separate the semiconductor generators in pairs and are fixed by screws.

5. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 4, characterized in that, Multiple semiconductor power generation cells have their terminals facing the same direction. In the same upper and lower pressure plate fixing device, the semiconductor power generation cells are connected in series by high-temperature resistant wires. In different upper and lower pressure plate fixing devices, the semiconductor power generation cells are connected in parallel by high-temperature resistant wires.

6. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 1, characterized in that, The power transmission assembly includes an engine, a double-row gear, a single-row gear chain, a bearing housing, a bearing retainer, and a bearing. The bearing housing and bearing are configured as a pair, and the bearing housing, bearing, and bearing retainer are fixedly connected. Each set of roller conveyors has two pairs of bearing housings and bearings, which are placed at both ends of the roller conveyor. The bearing at the front end is fixedly connected to the bearing retainer through a stepped structure on the front end cover, and the bearing at the rear end is fixedly connected to the bearing retainer through a stepped structure on the rear end cover. The bearing at the rear end is connected to the engine through a transverse double-row gear and a longitudinal single-row gear chain. The front end cover and the rear end cover act as shafts to transmit power from the engine to the roller conveyor.

7. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 1, characterized in that, Water pipe assemblies include one or more of the following: straight water pipes, deflecting water pipes, and T-shaped water pipes.

8. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 1, characterized in that, The flat key is set in the middle section and on both sides of the lower pressure plate fixing device and is fixed by screws. It is in contact with the upper pressure plate fixing device and the lower pressure plate fixing device, and at the same time, it is in contact with the front and rear end cover blades respectively.

9. The sheet metal conveyor roller conveyor with a semiconductor thermoelectric generator and a cooling device according to claim 1, characterized in that, The conductive slip ring is replaced by a magnetically coupled resonant power transmission device.

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