Rapid precooling device for picked kiwi fruits

Abstract

The utility model discloses a quick precooling device for picked kiwi fruits, and belongs to the technical field of kiwi fruit precooling, a plurality of screening conveying rollers are arranged between two transmission chains, a screening through hole is formed between every two adjacent screening conveying rollers, the picked kiwi fruits are conveyed through the screening conveying rollers, and the conveying efficiency is improved. And the kiwi fruits are screened according to the size through the screening through holes, and impurities on the surfaces of the kiwi fruits are discharged through the screening through holes. The quick air-cooling oil cooler utilizes the air-cooling cover, the device, the driving device and the exchanger to precool kiwi fruits, the temperature is quickly reduced, meanwhile, impurities on the surfaces are removed, and cleanliness and quality are ensured. And the screening conveying device and the air-cooling oil cooler are combined for use, so that the stability and durability of the device are improved. The Z-shaped design of the supporting connecting frame and the kidney-shaped hole are matched with the round hole of the bearing device, and the supporting connecting frame is fixed through a bolt, so that the structural firmness is enhanced. The transmission supporting rod is fixed in the bearing device through the limiting ring, deviation is avoided, and stable operation is ensured.

Description

Technical Field

[0001] This utility model relates to the field of kiwifruit precooling technology, and in particular to a rapid precooling device for kiwifruit after harvesting. Background Technology

[0002] The kiwifruit pre-cooling device is specially designed to quickly reduce the temperature of kiwifruit to eliminate field heat and respiratory heat, thereby extending the shelf life of kiwifruit.

[0003] Pre-cooling is a crucial step in the post-harvest processing of kiwifruit. When kiwifruit are transported to the pre-cooling device via conveyor belt, their surfaces are often covered with impurities, dust, and other substances. These impurities can not only affect the pre-cooling effect but also contaminate or damage the pre-cooling equipment.

[0004] Inconsistent size of kiwifruit is also a problem that cannot be ignored. During the pre-cooling process, kiwifruit of uneven size may not cool evenly due to uneven heating, which in turn affects the preservation effect and the appearance of the fruit when sold.

[0005] In terms of pre-cooling methods, using a single cooling method may affect cooling efficiency. Different kiwi fruit varieties, origins, and harvesting seasons will also have different internal heat and moisture contents. Utility Model Content

[0006] The main purpose of this invention is to provide a rapid pre-cooling device for kiwifruit after harvesting, which can effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A rapid pre-cooling device for kiwifruit after harvesting includes a transmission gear, a transmission chain, and a transmission support rod. Two transmission gears in the same row are connected by the transmission support rod, and two sets of transmission gears are connected by the transmission chain. The device drives one of the transmission support rods, which in turn drives the transmission chain to move.

[0009] Multiple screening conveyor rollers are provided between the two transmission chains, and screening through holes are formed between two adjacent screening conveyor rollers. The harvested kiwifruit is conveyed through the screening conveyor rollers, and the size of the kiwifruit is sorted through the screening through holes. The surface of the kiwifruit is also discharged through the screening through holes.

[0010] Bearing devices are installed at both ends of the transmission support rod. Two bearing devices in the same row are connected to a support frame. The support frame is connected to an air-cooling device through a mounting base. An oil-cooling drive device is installed at the rear end of the air-cooling device. An air-cooling shroud is connected to the fan blades of the air-cooling device. An exchanger is installed at the front end of the air-cooling shroud. The oil-cooling drive device is connected to the exchanger. The air outlets of the air-cooling shroud and the exchanger are directly facing the screening conveyor roller to pre-cool the kiwifruit on the screening conveyor roller and blow away impurities on the surface of the kiwifruit.

[0011] As an optional solution of this application, the screening conveyor roller is connected to the transmission chain via a rotating shaft. The screening conveyor roller has a large diameter at both ends and a small diameter in the middle section. The kiwifruit on the screening conveyor roller rolls towards the middle section of the screening conveyor roller.

[0012] As an optional solution of this application, the cross-section of the support connecting frame is designed in a "Z" shape, the support connecting frame is provided with a waist hole, the bearing device is provided with a round hole, the round hole is aligned with the waist hole, and a bolt is inserted to fix the bearing device to the support connecting frame.

[0013] As an optional embodiment of this application, the transmission support rod is inserted into the bearing device and restricted to the bearing device by a limiting ring;

[0014] As an optional solution of this application, a filter screen is provided at the connection between the air-cooled cover and the air-cooling device. The filter screen is fixed to the air-cooled cover by bolts, and the heat exchanger is fixed to the air-cooled cover by bolts.

[0015] As an optional solution of this application, the oil-cooled drive device is connected to the exchanger via a hose, the bottom of the screening conveyor roller is located below the water surface, the water in the area of ​​the exchanger and the screening conveyor roller is connected through a pipe, and the upper front end of the air-cooled cover is always directed at the screening conveyor roller to blow air.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The screening and conveying device, through the design of screening rollers and screening through holes, enables rapid conveying, size screening, and effective removal of surface impurities from kiwifruit. This not only improves the processing efficiency of kiwifruit but also ensures its cleanliness, providing favorable conditions for subsequent pre-cooling operations.

[0018] The rapid air-cooled oil cooler effectively pre-cools kiwifruit on the screening conveyor rollers through the coordinated action of an air-cooling hood, air-cooling device, oil-cooling drive unit, and exchanger. The cold air generated by the fan blades of the air-cooling device is directly blown onto the kiwifruit on the screening conveyor rollers through the air-cooling hood and the air outlet of the exchanger, rapidly reducing their temperature and achieving rapid pre-cooling. Simultaneously, it blows away impurities from the surface of the kiwifruit, further ensuring their cleanliness and preservation quality.

[0019] The combined use of the screening and conveying device with the rapid air-cooled oil cooler further improves the stability and durability of the entire system. The "Z"-shaped design of the support frame and the matching of the waist holes with the round holes of the bearing assembly, secured with bolts, make the entire structure more robust. The transmission support rod is restrained within the bearing assembly by a limit ring, preventing offset during movement and ensuring stable operation of the system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a diagram showing the overall structure of the present invention;

[0022] Figure 3 This is a top view of the overall structure of this utility model;

[0023] Figure 4 This is a diagram illustrating the screening and conveying device of this utility model.

[0024] In the diagram: 1. Screening conveyor; 11. Screening conveyor roller; 12. Transmission gear; 13. Transmission chain; 14. Transmission support rod; 15. Bearing device; 16. Screening through hole; 2. Rapid air-cooled oil cooler; 21. Air-cooled cover; 22. Filter screen; 23. Air-cooling device; 24. Oil-cooled drive device; 25. Exchanger; 26. Mounting base; 3. Support connecting frame. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 - Figure 4 As shown, a rapid pre-cooling device for kiwifruit after harvesting includes transmission gears 12, a transmission chain 13, and transmission support rods 14. The transmission gears 12 are arranged in a row, and every two transmission gears 12 are connected by transmission support rods 14. The transmission gears 12 are connected to each other by the transmission chain 13. At least one of the transmission support rods 14 is a drive motor connected to it. The drive of the transmission support rod 14 causes the transmission chain 13 to move; the movement of the transmission chain 13 drives the operation of the entire device, thereby achieving rapid pre-cooling of the kiwifruit.

[0027] Multiple screening conveyor rollers 11 are arranged between the transmission chain 13, and screening through holes 16 are formed between two adjacent screening conveyor rollers 11. The harvested kiwifruit is conveyed through the screening conveyor rollers 11 and the size of the kiwifruit is sorted through the screening through holes 16. At the same time, the surface impurities of the kiwifruit are discharged through the screening through holes 16. The arrangement of the screening conveyor rollers 11 enables the kiwifruit to be effectively screened and cleaned during the conveying process.

[0028] The rapid air-cooled oil cooler 2 includes an air-cooling shroud 21, an air-cooling device 23, an oil-cooling drive device 24, and an exchanger 25. Bearing devices 15 are installed at both ends of the transmission support rod 14. Two bearing devices 15 in the same row are connected to a support frame 3. The support frame 3 is connected to the air-cooling device 23 through a mounting base 26. The oil-cooling drive device 24 is installed at the rear end of the air-cooling device 23. The air-cooling shroud 21 is connected to the fan blades of the air-cooling device 23. The exchanger 25 is installed at the front end of the air-cooling shroud 21. The oil-cooling drive device 24 is connected to the exchanger 25. The air outlets of the air-cooling shroud 21 and the exchanger 25 are directly facing the screening conveyor roller 11 to pre-cool the kiwifruit on the screening conveyor roller 11 and blow away the impurities on the surface of the kiwifruit.

[0029] The screening conveyor roller 11 is connected to the transmission chain 13 via a rotating shaft. The screening conveyor roller 11 has a large diameter at both ends and a small diameter in the middle section, which makes the kiwifruit roll towards the middle section of the screening conveyor roller 11. This design makes the kiwifruit more stable during the conveying process and reduces the damage caused by rolling off the conveyor roller.

[0030] The cross-section of the support connecting frame 3 is designed in a "Z" shape. The support connecting frame 3 has a waist hole, and the bearing device 15 has a round hole. The round hole is aligned with the waist hole, and a bolt is inserted to fix the bearing device 15 to the support connecting frame 3. This design makes the connection between the support connecting frame 3 and the bearing device 15 more secure, and improves the stability and durability of the device.

[0031] The transmission support rod 14 is inserted into the bearing device 15 and is restricted to the bearing device 15 by a limiting ring; the setting of the limiting ring makes the position of the transmission support rod 14 in the bearing device 15 more stable and avoids the transmission support rod 14 from deviating during the movement.

[0032] A filter screen 22 is provided at the connection between the air-cooled cover 21 and the air-cooled device 23. The filter screen 22 is fixed to the air-cooled cover 21 by bolts, and the heat exchanger 25 is fixed to the air-cooled cover 21 by bolts. The filter screen 22 can prevent dust and other impurities from entering the air-cooled device 23, ensuring the normal operation of the air-cooled device 23. At the same time, the heat exchanger 25 can improve the cooling efficiency of the air-cooled device 23.

[0033] The oil-cooled drive unit 24 is connected to the exchanger 25 via a hose. The bottom of the screening and conveying device 1 is below the water surface. The water in the area where the exchanger 25 and the screening and conveying device 1 are connected via a pipe. The upper front end of the air-cooled hood 21 is always directed at the screening and conveying roller 11 to blow air, ensuring that the kiwifruit receives effective pre-cooling during the conveying process. This design allows the kiwifruit to be fully cooled during the pre-cooling process, improving the preservation quality of the kiwifruit.

[0034] Turn on the power and start the oil-cooled drive unit 24. The oil-cooled drive unit 24 drives the air-cooling unit 23. The harvested kiwifruit is placed on the screening conveyor roller 11. The transmission chain 13 moves, driving the screening conveyor roller 11 to rotate. The kiwifruit is sorted by size through the screening holes 16 between two adjacent screening conveyor rollers 11. Impurities on the surface of the kiwifruit are discharged through the screening holes 16. The air outlets of the air-cooling hood 21 and the heat exchanger 25 are directly facing the screening conveyor roller 11. The air-cooling hood 21, connected to the fan blades of the air-cooling unit 23, pre-cools the kiwifruit. It blows away impurities on the surface of the kiwifruit, ensuring that it receives effective pre-cooling treatment during transportation. The "Z"-shaped design and waist hole of the support connecting frame 3 are matched with the round hole of the bearing device 15 and fixed by bolts. The transmission support rod 14 is restricted in the bearing device 15 by the limit ring to ensure stable position. The filter screen 22 at the connection between the air-cooling hood 21 and the air-cooling unit 23 prevents dust and other impurities from entering. The heat exchanger 25 is connected to the oil-cooled drive unit 24 via a hose to improve cooling efficiency. The bottom of the screening and conveying device 1 is below the water surface. The area water of the heat exchanger 25 and the screening and conveying device 1 is connected by a pipe. The upper front end of the air-cooled hood 21 is always directed at the screening and conveying roller 11 to blow air, ensuring that the kiwifruit receives continuous and effective pre-cooling treatment during the conveying process.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rapid pre-cooling device for kiwifruit after harvesting, comprising a transmission gear (12), a transmission chain (13), and a transmission support rod (14), wherein two transmission gears (12) in the same row are connected by the transmission support rod (14), and two sets of transmission gears (12) are connected by the transmission chain (13), driving one of the transmission support rods (14) to drive the transmission chain (13) to move, characterized in that: A plurality of screening conveying rollers (11) are arranged between the two transmission chains (13), and adjacent two of the screening conveying rollers (11) form a screening through hole (16), the picked kiwifruits are conveyed through the screening conveying rollers (11), and the size screening operation of the kiwifruits is realized through the screening through hole (16), and the discharge of the surface sundries of the kiwifruits is also realized through the screening through hole (16); Both ends of the transmission support rod (14) are provided with bearing devices (15), and the same column two bearing devices (15) are connected with a support connecting frame (3), the support connecting frame (3) is connected with an air cooling device (23) through a mounting seat (26), the rear end of the air cooling device (23) is provided with an oil cooling driving device (24), the fan blade of the air cooling device (23) is connected with an air cooling cover (21), the front end of the air cooling cover (21) is provided with an exchanger (25), the oil cooling driving device (24) is connected with the exchanger (25), and the air outlets of the air cooling cover (21) and the exchanger (25) are opposite to the screening conveying rollers (11), so that the pre-cooling operation is realized on the kiwifruits on the screening conveying rollers (11), and the surface sundries of the kiwifruits are blown away.

2. The device for rapid precooling of kiwifruits after picking according to claim 1, characterized in that: The screening conveying roller (11) is connected with the transmission chain (13) through a rotating shaft, the diameters of two ends of the screening conveying roller (11) are large, and the diameter of the middle section is small, and the kiwifruits on the screening conveying roller (11) roll towards the middle section of the screening conveying roller (11).

3. The device for rapid precooling of kiwifruits after picking according to claim 2, characterized in that: The cross section of the support connecting frame (3) is designed in a "Z" shape, a waist hole is formed in the support connecting frame (3), a circular hole is formed in the bearing device (15), the circular hole is opposite to the waist hole, and a bolt is inserted to fix the bearing device (15) and the support connecting frame (3).

4. The device for rapid precooling of kiwifruits after picking according to claim 3, characterized in that: The transmission support rod (14) is inserted into the bearing device (15) and limited on the bearing device (15) through a limiting ring.

5. The device for rapid precooling of kiwifruits after picking according to claim 4, characterized in that: The air cooling cover (21) is provided with a filter screen (22) at the connection position of the air cooling device (23), the filter screen (22) is fixed on the air cooling cover (21) through a bolt, and the exchanger (25) is fixed on the air cooling cover (21) through a bolt.

6. The device for rapid precooling of kiwifruits after picking according to claim 5, characterized in that: The oil cooling driving device (24) and the exchanger (25) are connected through a hose, the bottom of the screening conveying roller (11) is below the water surface, the water in the area of the exchanger (25) and the screening conveying roller (11) is communicated through a pipeline, and the front end of the air cooling cover (21) is always aligned with the screening conveying roller (11) for blowing.

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