Conveying chain for photovoltaic cells

Abstract

The utility model discloses a conveying chain for photovoltaic cells, which comprises two chains parallel to each other, the two chains are arranged at intervals along the width direction, each chain comprises a plurality of inner chain plates and a plurality of outer chain plates, and each pair of inner chain plates and each pair of outer chain plates are arranged at intervals along the width direction of the chain. The multiple inner chain plates and the multiple outer chain plates are alternately arranged in the length direction of the chain, and a pair of adjacent inner chain plates and a pair of adjacent outer chain plates are hinged through connecting pins. Each chain further comprises a bent plate, the bent plate is fixedly connected with the outer chain plate or the inner chain plate, the bent plate extends towards the other chain in the width direction of the chain, and a gap is reserved between the bent plate and the bent plate on the other chain. And the hanging lugs are fixedly connected with the bent plates, the hanging lugs on the two chains are symmetrically arranged, and each hanging lug is provided with an inclined plane for placing a photovoltaic cell. The conveying chain is compact in structure, the hanging lugs are convenient to replace, few materials are used for replacement, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission equipment of high-temperature sintering furnaces or drying furnaces, in particular to a conveying chain for photovoltaic cells. Background Art

[0002] In the production process of photovoltaic cells, sintering or drying and screen printing are extremely important processes in the production of photovoltaic cells. The quality of sintering or drying also directly affects the quality of screen printing. Photovoltaic cells are usually placed on a conveyor chain and enter the sintering furnace or drying furnace under the conveyor chain. The conveyor chain usually includes a hanging ear to support the photovoltaic cell. The hanging ear is easily damaged due to contact with the high-temperature photovoltaic cell, so it needs to be replaced. However, the existing hanging ear and the support rod between the chain are integrated, and the cost is high when it needs to be replaced. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a conveyor chain for photovoltaic cells, which has a compact structure, is convenient for replacing the hanging ears, and uses less materials for replacement, thus saving costs.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a conveyor chain for photovoltaic cells, comprising two parallel chains, the two chains are arranged in the width direction, each of the chains comprises a plurality of pairs of inner chain plates and a plurality of pairs of outer chain plates, each pair of the inner chain plates and the outer chain plates are arranged in the width direction of the chain, and the plurality of pairs of the inner chain plates and the outer chain plates are arranged alternately along the length direction of the chain, and the adjacent pair of the inner chain plates and the pair of the outer chain plates are hinged by connecting pins, and each of the chains further comprises:

[0005] A bent plate, the bent plate is fixedly connected to the outer link plate or the inner link plate, the bent plate extends toward the other chain along the width direction of the chain and a gap is left between the bent plate on the other chain;

[0006] The hanging ears are fixedly connected to the bent plate, the hanging ears on the two chains are symmetrically arranged, and each of the hanging ears has an inclined surface for placing the photovoltaic cell sheet.

[0007] The beneficial effect of the utility model is that the hanging ears are fixed on the chain plate by the bent plate, two hanging ears are corresponding to two chains, and the corresponding two hanging ears form a group to support the photovoltaic cell. A group of hanging ears is a split structure, not an integral part. When replacement is needed, only the corresponding hanging ears need to be replaced, which saves costs.

[0008] Specifically, the mounting ears include:

[0009] A connecting plate, wherein the connecting plate is fixedly connected to the bent plate;

[0010] The supporting frame is fixed on the upper end surface of the connecting plate, and the inclined surface is arranged on the supporting frame.

[0011] The connecting plate provides a larger supporting surface for the carrier frame, making it easier to fix the carrier frame on the bent plate.

[0012] Furthermore, the connecting plate is detachably connected to the bent plate. When the carrier needs to be replaced, the connecting plate can be directly removed from the bent plate, and a new connecting plate can be fixed on the bent plate.

[0013] Specifically, the support frame includes a tilting rod and a vertical rod, the lower end of the tilting rod is fixedly connected to the connecting plate, the upper end of the tilting rod is fixed to the connecting plate through the vertical rod, and the upper end surface of the tilting rod is an inclined surface. The support frame adopts a rod-shaped structure, and the inclined surface area is small, that is, the contact area between the support frame and the photovoltaic cell is small, which reduces the wear on the photovoltaic cell.

[0014] Furthermore, the connection between the inclined rod and the vertical rod forms a semi-arc-shaped protrusion that bends upwards. The semi-arc-shaped protrusion limits the maximum size of the photovoltaic cell that can be transmitted, and also prevents the photovoltaic cell from moving or falling off easily.

[0015] Furthermore, the bent plate and the corresponding outer link plate or inner link plate are integrally formed and formed by bending a metal plate, which is easy to process.

[0016] Furthermore, the connecting plate is riveted to the bent plate. At this time, the connecting plate can also be disassembled and replaced, and only an angle grinder is needed to remove the connecting plate from the bent plate.

[0017] Furthermore, a rotatable roller is sleeved on the connecting pin, and the roller realizes rolling connection between the chain and the teeth to reduce wear. A central hole is provided on the roller for the connecting pin to pass through. A gap is left between the roller and the connecting pin to improve the smoothness of the roller rotation.

[0018] Furthermore, the conveyor chain further includes a plurality of support rods located between the two chains, the support rods correspond to the connecting pins and are coaxially arranged, the two ends of the support rods are respectively connected to the corresponding connecting pins of the two chains, and the support rods and the connecting pins are an integral part. The arrangement of the support rods improves the stability of the entire conveyor chain, allowing the two chains to form a whole, avoiding chain swinging, and providing stability for the transportation of photovoltaic cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0020] Figure 2 A side view of an embodiment of the utility model;

[0021] Figure 3 A top view of an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the hanging ear in the embodiment of the utility model.

[0023] In the figure:

[0024] 100, chain; 200, support rod;

[0025] 1. Inner link plate; 1a. Inner link plate 1; 1b. Inner link plate 2; 2. Outer link plate; 2a. Outer link plate 1; 2b. Outer link plate 2; 3. Connecting pin; 4. Bending plate; 5. Hanging ear; 51. Connecting plate; 52. Carrying frame; 52a. Inclined rod; 52b. Vertical rod; 52c. Semi-arc protrusion; 6. Roller. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0027] See attached Figure 1 As shown, the conveying chain for photovoltaic cells of the utility model comprises two parallel chains 100, the two chains 100 are spaced and symmetrically arranged along the width direction (X direction), and the two chains 100 are both closed-loop structures, and rotate synchronously when driven by a driving assembly (not shown in the figure).

[0028] See attached Figure 1 and attached Figure 3 As shown, each of the chains 100 includes a plurality of pairs of inner link plates 1 and a plurality of pairs of outer link plates 2, each pair of the inner link plates 1 and the outer link plates 2 are arranged at intervals along the width direction of the chain 100, and the plurality of pairs of the inner link plates 1 and the outer link plates 2 are arranged alternately along the length direction (Y direction) of the chain 100, and the adjacent pairs of the inner link plates 1 and the outer link plates 2 are hinged by connecting pins 3. The two chains 100 are chain 100-1 and chain 100-2, respectively, each pair of inner link plates 1 includes inner link plate 1a and inner link plate 2b, and each pair of outer link plates 2 includes outer link plate 12a and outer link plate 2b. The inner link plate 1a and the outer link plate 2a of the chain 100-1 are located on the side close to the inner link plate 1a and the outer link plate 2a of the chain 100-2, that is, the inner side of the conveying chain is the inner link plate 1a and the outer link plate 2a.

[0029] The inner link plates 1 and the outer link plates 2 are provided with pin holes at both ends in the length direction, and the inner link plates 1 and the outer link plates 2 partially overlap, and the pin holes of the overlapping parts are coaxial, and the two ends of the connecting pin 3 are inserted and fixed in the coaxial pin holes. At this time, each group of inner link plates 1 and outer link plates 2 are assembled into a whole, which can be bent in the length direction of the chain 100.

[0030] See attached Figure 1 and attached Figure 2 As shown, each of the chains 100 further includes a bent plate 4 and a lug 5, wherein the bent plate 4 is fixedly connected to the outer chain plate 2 or the inner chain plate 1, and the bent plate 4 extends toward the other chain 100 along the width direction of the chain 100 and a gap is left between the bent plate 4 on the other chain 100. The bent plate 4 is fixed on the inner chain plate 1a or the outer chain plate 2b, that is, fixed on the inner side of the conveyor chain. The lug 5 is fixedly connected to the bent plate 4, and the lugs 5 on the two chains 100 are symmetrically arranged, and each of the lugs 5 has an inclined surface for placing photovoltaic cells.

[0031] In this embodiment, the hanging ears 5 are fixed to the chain plate by the bent plate 4. Two hanging ears 5 are corresponding to two chains 100. The corresponding two hanging ears 5 form a group to support the photovoltaic cell. A group of hanging ears 5 is a split structure, not an integral part. When replacement is needed, only the corresponding hanging ears 5 need to be replaced.

[0032] The bent plate 4 may be fixed on only one of the inner link plate 1 and the outer link plate 2 , or the bent plate 4 may be provided on both the inner link plate 1 and the outer link plate 2 .

[0033] In one embodiment, the bent plate 4 is integrally formed with the corresponding outer link plate 2 or inner link plate 1a. The bent plate 4 is perpendicular to the corresponding outer link plate 2 or inner link plate 1 to form an L structure, and a metal plate can be bent to form a structure of a link plate and the bent plate 4.

[0034] Of course, in some embodiments, the bent plate 4 and the corresponding outer link plate 2 or inner link plate 1 can also be fixed by welding, riveting, or bolts. It is sufficient to allow the bent plate 4 and the corresponding outer link plate 2 or inner link plate 1 to move synchronously.

[0035] See attached Figure 2 As shown, the hanging ear 5 includes a connecting plate 51 and a bearing frame 52, the connecting plate 51 is fixedly connected to the bent plate 4, the bearing frame 52 is fixed to the upper end surface of the connecting plate 51, and the inclined surface is arranged on the bearing frame 52. The connecting plate 51 provides a larger supporting surface for the bearing frame 52, so as to facilitate fixing the bearing frame 52 on the bent plate 4.

[0036] In one embodiment, the connecting plate 51 is detachably connected to the bent plate 4. For example, a bolt connection, a positioning pin connection, a block connection, etc. are adopted, so that it is easy to disassemble the connecting plate 51. When the carrier frame 52 needs to be replaced, the connecting plate 51 can be directly removed from the bent plate 4, and then a new connecting plate 51 is fixed on the bent plate 4.

[0037] In one embodiment, the connecting plate 51 is riveted to the bent plate 4 by rivets, and the connecting plate 51 can also be disassembled and replaced, but an angle grinder is required, which is time-consuming and labor-intensive. However, when replacing the carrier 52, the connecting plate 51 can be removed from the bent plate 4.

[0038] See attached Figure 4 As shown, the support frame 52 includes a tilting rod 52a and a vertical rod 52b. The lower end of the tilting rod 52a is fixedly connected to the connecting plate 51, and the upper end of the tilting rod 52a is fixed to the connecting plate 51 through the vertical rod 52b. The upper end surface of the tilting rod 52a is an inclined surface. The support frame 52 adopts a rod-shaped structure, and the area of ​​the inclined surface is small, that is, the contact area between the support frame 52 and the photovoltaic cell is small, which reduces the wear on the photovoltaic cell. The inclination angle of the inclined surface relative to the horizontal plane is 10-30°, and the two ends of the photovoltaic cell panel in the width direction are against the inclined surface. The inclined surface can guide the photovoltaic cell panel on the one hand, and can place photovoltaic cells of different sizes on the other hand.

[0039] In one embodiment, the lower end of the tilting rod 52a and the lower end of the vertical rod 52b are welded and fixed to the connecting plate 51, that is, the support frame and the connecting plate are integrated. The tilting rod 52a and the vertical rod 52b are an integrated structure, formed by bending a metal rod.

[0040] See attached Figure 4 As shown, the connection between the inclined rod 52a and the vertical rod 52b forms an upwardly curved semi-arc shaped protrusion 52c. The semi-arc shaped protrusion 52c can limit the maximum size of the photovoltaic cell that can be transmitted, and also prevent the photovoltaic cell from moving or falling off easily.

[0041] See attached Figure 1 -Attached Figure 3 As shown, a rotatable roller 6 is sleeved on the connecting pin 3, and the roller 6 is located between a pair of inner chain plates 1, and the roller 6 can rotate around the connecting pin 3. The roller 6 is provided with a central hole for the connecting pin 3 to pass through, and the diameter of the central hole is larger than the outer diameter of the connecting pin 3. That is, a gap is left between the roller 6 and the connecting pin 3, so that the roller 6 can rotate smoothly.

[0042] When the conveyor chain is in transmission with the gear of the driving assembly, the gear teeth are inserted between the two rollers 6, and the rollers 6 realize the rolling connection between the chain 100 and the teeth to reduce wear. At the same time, the outer peripheral surface of the roller 6 protrudes from the inner link plate 1 and the outer link plate 2 in the vertical direction (Z direction), and the gears will not contact the inner link plate 1 and the outer link plate 2, and will not cause wear to the inner link plate 1 and the outer link plate 2.

[0043] In one embodiment, see the attached Figure 1As shown, the conveying chain also includes a plurality of support rods 200 located between the two chains 100, the support rods 200 correspond to the connecting pins 3 and are coaxially arranged, the two ends of the support rods 200 are respectively connected to the corresponding connecting pins 3 of the two chains 100, and the ends of the support rods 200 are inserted into the pin holes. The arrangement of the support rods 200 improves the stability of the entire conveying chain, allowing the two chains 100 to form a whole, avoiding the swing of the chains 100, and providing stability for the transportation of photovoltaic cells.

[0044] In one embodiment, the support rod and the connecting pin are an integral piece. Of course, in the following embodiments, the two can also be split structures.

[0045] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A conveyor chain for photovoltaic cells, comprising two parallel chains, the two chains are spaced apart in the width direction, each chain comprises a plurality of pairs of inner chain plates and a plurality of pairs of outer chain plates, each pair of the inner chain plates and the outer chain plates are spaced apart in the width direction of the chain, a plurality of pairs of the inner chain plates and the outer chain plates are alternately arranged along the length direction of the chain, an adjacent pair of the inner chain plates and the pair of the outer chain plates are hinged by a connecting pin, characterized in that: Each of the chains further comprises: A bent plate, the bent plate is fixedly connected to the outer link plate or the inner link plate, the bent plate extends toward the other chain along the width direction of the chain and a gap is left between the bent plate on the other chain; The hanging ears are fixedly connected to the bent plate, the hanging ears on the two chains are symmetrically arranged, and each of the hanging ears has an inclined surface for placing the photovoltaic cell sheet.

2. The conveyor chain for photovoltaic cells according to claim 1, characterized in that: The mounting ears include: A connecting plate, wherein the connecting plate is fixedly connected to the bent plate; The supporting frame is fixed on the upper end surface of the connecting plate, and the inclined surface is arranged on the supporting frame.

3. The conveyor chain for photovoltaic cells according to claim 2, characterized in that: The connecting plate is detachably connected to the bent plate.

4. The conveyor chain for photovoltaic cells according to claim 2, characterized in that: The support frame includes a tilting rod and a vertical rod, the lower end of the tilting rod is fixedly connected to the connecting plate, the high end of the tilting rod is fixed to the connecting plate through the vertical rod, and the upper end surface of the tilting rod is an inclined surface.

5. The conveyor chain for photovoltaic cells according to claim 4, characterized in that: A semi-arc-shaped protrusion bending upward is formed at the connection between the inclined rod and the vertical rod.

6. The conveyor chain for photovoltaic cells according to claim 1, characterized in that: The bent plate and the corresponding outer link plate or inner link plate are integrally formed.

7. The conveyor chain for photovoltaic cells according to claim 2, characterized in that: The connecting plate is riveted to the bent plate.

8. The conveyor chain for photovoltaic cells according to claim 1, characterized in that: The connecting pin is also sleeved with a rotatable roller, and the roller is provided with a central hole for the connecting pin to pass through.

9. The conveyor chain for photovoltaic cells according to claim 1, characterized in that: The conveying chain also includes a plurality of support rods located between the two chains. The support rods correspond to the connecting pins and are coaxially arranged. The two ends of the support rods are respectively connected to the corresponding connecting pins of the two chains. The support rods and the connecting pins are an integral part.

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