Negative-pressure material sucking and transferring equipment
By introducing separation components and crushed components into the negative pressure suction reprinting equipment, the problems of low-temperature environment unevenness and rotten fresh fish caused by melting and adhesion of crushed ice are solved, and effective contact between ice cubes and fresh fish and maintenance of low-temperature environment are achieved.
Patent Information
- Application Number
- CN202510443983.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2025-05-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The high temperature outdoors causes the crushed ice to melt rapidly. When the ice water mixture flows in the pipeline, it condenses into blocks due to temperature fluctuations. The adhesion of the ice layer causes the contact area between the ice and the fresh ice fish to decrease, and the heat absorption rate decreases, making it difficult to maintain a uniform low-temperature environment, which leads to local rot in the fresh ice fish.
A negative pressure suction reprinting device is designed, including separation components and crushing components. The separation assembly is used to separate the ice from the ice, and the crushing assembly is used to break the adhered ice cubes to ensure the maximum contact surface between the ice cubes and the ice cubes and prevent local corruption.
Through the design of separation and crushing components, the ice cubes are effectively prevented from agglomeration, increase the contact area between the ice cubes and the fresh fish, maintain a uniform low temperature environment, and avoid local rot in the fresh fish.
Smart Images
Figure CN120039665A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of material suction and transfer, and particularly to a negative pressure material suction and transfer device. Background Art
[0002] When large and medium-sized marine fishing vessels go to sea for fishing, the caught fish are mixed with crushed ice and stored in a thermal insulation fish hold to extend the shelf life of the fish. With the development of technology, a fishing vessel can catch tens of thousands of catties of fish in one voyage. When the fishing vessel berths and unloads, manual labor is used to load and unload the low-temperature preserved fish (hereinafter collectively referred to as chilled fish) onto the vehicle. If stored improperly, the fish in the fish hold will anaerobically ferment to produce toxic gas hydrogen sulfide, which can easily lead to poisoning incidents and even deaths. Therefore, a new type of negative pressure material suction device is needed for the unloading link of marine fishing vessels to reduce manual labor and improve the transfer efficiency. Accelerating air circulation during the negative pressure material suction process can effectively prevent hydrogen sulfide poisoning incidents.
[0003] The negative pressure material suction device is based on the principle of vacuum adsorption. A vacuum pump is used to form a negative pressure difference in the system, and materials are sucked from the feeding point through a pipeline and transported to the target position. The whole process is airtight and leak-free. However, the high outdoor temperature causes the crushed ice to melt quickly. When the ice-water mixture flows in the pipeline, it re-condenses into blocks due to temperature fluctuations. The adhesion of the ice layers reduces the contact area between the ice and the chilled fish, and the heat absorption rate decreases, making it difficult to maintain a uniform low-temperature environment, which in turn leads to local spoilage of the chilled fish. For this reason, we propose a negative pressure material suction and transfer device. Summary of the Invention
[0004] The purpose of the present invention is to provide a negative pressure material suction and transfer device to solve the problems that the high outdoor temperature causes the crushed ice to melt quickly, the ice-water mixture re-condenses into blocks due to temperature fluctuations when flowing in the pipeline, the adhesion of the ice layers reduces the contact area between the ice and the chilled fish, the heat absorption rate decreases, and it is difficult to maintain a uniform low-temperature environment, which in turn leads to local spoilage of the chilled fish.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A negative pressure material suction and transfer device, comprising: a fixed frame and a material suction box. The material suction box is connected to the fixed frame, and the fixed frame is used to fix the material suction box. A control console is provided on one side of the fixed frame, a vacuum pump is connected to the control console, a vacuum tube is connected to the vacuum pump, and the vacuum tube is connected to the material suction box. A material suction tube is connected to the material suction box, and a double-plunger transfer pump is connected to the bottom end of the material suction box. The double-plunger transfer pump is used for loading materials onto the vehicle; It further includes: A separation component, which is connected inside the material suction box and corresponds to the material suction tube. The separation component is used to separate the chilled fish from the ice; A crushing component, which is connected inside the material suction box and corresponds to the separation component. The crushing component is used to crush the adhered ice blocks; The metering component is arranged in the ice fish suction box and conveys a fixed quantity of crushed ice according to the weight of the ice fish conveyed.
[0006] Among them, the separation component includes a driving sleeve connected to the outer wall of the ice fish suction box. A first motor is connected inside the driving sleeve. Inside the ice fish suction box, a first filter roller, a second filter roller, and a third filter roller are connected. The first motor is connected to the first filter roller, and a first driving member is connected to the first filter roller, the second filter roller, and the third filter roller.
[0007] Among them, the first driving member includes a first rotating shaft, a second rotating shaft, and a third rotating shaft, which are respectively connected to the first filter roller, the second filter roller, and the third filter roller. A first sprocket is connected to the first rotating shaft, a second sprocket is connected to the second rotating shaft, and a third sprocket is connected to the third rotating shaft. A chain is connected to the first sprocket, the second sprocket, and the third sprocket.
[0008] Among them, limiting plates are connected to the first filter roller, the second filter roller, and the third filter roller.
[0009] Among them, a conveying plate is connected to the ice fish suction box and is arranged on one side of the third filter roller. The conveying plate is used to convey the filtered ice fish.
[0010] Among them, the crushing component includes a first crushing roller and a second crushing roller, which are used in cooperation to crush the adhered ice cubes. A second driving member is connected to the first crushing roller and the second crushing roller.
[0011] Among them, the second driving member includes a second motor connected to the driving sleeve. A first rotating shaft is connected to the output shaft of the second motor and is connected to the first crushing roller. A first gear is connected to the first rotating shaft. A second rotating shaft is connected to the second crushing roller. A second gear is connected to the second rotating shaft, and the first gear meshes with the second gear.
[0012] Among them, the metering component includes a placement plate connected inside the ice fish suction box and corresponding to the conveying plate. A first pressure sensor is connected to the placement plate, and a flipping member is connected to the conveying plate.
[0013] Among them, the flipping member includes a groove opened on the inner wall of the ice fish suction box. A rotating plate is connected to the placement plate. A rotating shaft is connected to the rotating plate and is connected to the inner wall of the groove. A first electric telescopic rod is connected inside the groove and is connected to the rotating plate. A first switch is connected inside the groove and corresponds to the rotating plate.
[0014] Among them, a receiving plate is connected inside the ice fish suction box and corresponds to the first crushing roller and the second crushing roller. A second pressure sensor is connected to the receiving plate. A third rotating shaft is connected to the receiving plate. A third motor is connected inside the driving sleeve, and the output shaft of the third motor is connected to the third rotating shaft.
[0015] The present invention has at least the following beneficial effects: By providing a separation component and a crushing component, the separation component is connected inside the material suction box and corresponds to the material suction pipe. The separation component is used to separate chilled fish from ice. Before transporting the fish-ice mixture, when the ice cubes melt and stick together, the material suction pipe conveys the fish-ice mixture to the separation component. The separation component facilitates the separation of the fish-ice mixture and transports the separated chilled fish, preventing the chilled fish from being broken when the ice cubes are crushed. The crushing component is connected inside the material suction box and corresponds to the separation component. The crushing component is used to crush the stuck-together ice cubes. The crushing component can crush the separated ice cubes, thereby preventing the ice cubes from caking, reducing the contact area between the ice cubes and the chilled fish, and preventing the chilled fish from undergoing local spoilage. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the double-plunger delivery pump structure of the present invention; Figure 3 is a schematic diagram of the material suction box structure of the present invention; Figure 4 is a schematic diagram of the drive sleeve structure of the present invention; Figure 5 is a schematic diagram of the separation component structure of the present invention; Figure 6 is a schematic diagram of the drive member structure of the present invention; Figure 7 is a schematic diagram of the crushing component structure of the present invention; Figure 8 is a schematic diagram of the metering component structure of the present invention; Figure 9 is Figure 8 an enlarged schematic diagram of area A in
[0017] In the figure: 1, material suction box; 2, control console; 3, vacuum tube; 4, material suction pipe; 5, double-plunger delivery pump; 6, fixing frame; 7, vacuum pump; 8, drive sleeve; 9, separation component; 91, motor one; 10, crushing component; 101, motor two; 11, filter roller one; 12, filter roller two; 13, filter roller three; 14, filter holes; 15, drive member one; 151, rotating shaft one; 152, rotating shaft two; 153, rotating shaft three; 16, limiting plate; 17, sprocket one; 18, sprocket two; 19, sprocket three; 20, chain; 21, crushing roller one; 22, crushing roller two; 23, drive member two; 24, rotating shaft one; 25, rotating shaft two; 26, gear one; 27, gear two; 28, metering component; 29, motor three; 30, rotating shaft; 31, placing plate; 32, groove; 33, electric telescopic rod one; 34, rotating plate; 35, receiving plate; 36, pressure sensor two; 37, pressure sensor one; 38, switch one. Detailed implementation manners
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0019] Embodiment 1 Please refer to Figures 1 to 9 , the present invention provides a technical solution: a negative pressure suction and transfer device, including: a fixed frame 6 and a suction box 1. The suction box 1 is connected to the fixed frame 6. The temperature inside the suction box 1 is lower than 0 degrees. The fixed frame 6 is used to fix the suction box 1. A control console 2 is provided on one side of the fixed frame 6. A vacuum pump 7 is connected to the control console 2. A vacuum tube 3 is connected to the vacuum pump 7, and the vacuum tube 3 is connected to the suction box 1. A suction pipe 4 is connected to the suction box 1. A double plunger transfer pump 5 is connected to the bottom end of the suction box 1. The double plunger transfer pump 5 is used for loading materials onto a vehicle. By using the vacuum pump 7 and the vacuum tube 3 in cooperation, the suction box 1 can be pumped to a vacuum state. Through the suction pipe 4, the fish-ice mixture can be sucked into the suction box 1. The double plunger transfer pump 5 facilitates the transportation of ice fish and ice to the material loading vehicle; It further includes: a separation component 9, the separation component 9 is connected inside the suction box 1, and the separation component 9 corresponds to the suction pipe 4. The separation component 9 is used to separate ice fish from ice. Before transporting the fish-ice mixture, when the ice cubes are melted and adhered, the suction pipe 4 transports the fish-ice mixture to the separation component 9. The separation component 9 facilitates the separation of the fish-ice mixture and transports the separated ice fish to prevent the ice fish from being broken when the ice cubes are broken; a crushing component 10, the crushing component 10 is connected inside the suction box 1, and the crushing component 10 corresponds to the separation component 9. The crushing component 10 is used to crush the adhered ice cubes. The crushing component 10 can crush the separated ice cubes, thereby preventing the ice cubes from caking, reducing the contact area between the ice cubes, and preventing local spoilage of the ice fish; a quantitative component 28, the quantitative component 28 is arranged inside the suction box 1. The quantitative component 28 transports a certain amount of crushed ice according to the weight of the ice fish transported to ensure that the ice fish can be in full contact with the ice cubes and prevent the ice fish from spoiling.
[0020] The separation component 9 includes a driving sleeve 8 which is connected to the outer wall of the fish suction box 1. A first motor 91 is connected inside the driving sleeve 8. By providing the driving sleeve 8, the first motor 91 can be protected, thereby extending the service life of the first motor 91. Inside the fish suction box 1, a first filter roller 11, a second filter roller 12 and a third filter roller 13 are connected. Filter holes 14 are provided on the first filter roller 11, the second filter roller 12 and the third filter roller 13. Through the filter holes 14, fresh chilled fish and ice cubes can be separated. The first filter roller 11 is connected to the first motor 91, and a first driving member 15 is connected to the first filter roller 11, the second filter roller 12 and the third filter roller 13. The first motor 91 can drive the first filter roller 11 to rotate. Through the first driving member 15, the second filter roller 12 and the third filter roller 13 can be driven to rotate. Thus, the rotation of the first filter roller 11, the second filter roller 12 and the third filter roller 13 can convey the separated fresh chilled fish.
[0021] The first driving member 15 includes a first rotating shaft 151, a second rotating shaft 152 and a third rotating shaft 153. The first rotating shaft 151, the second rotating shaft 152 and the third rotating shaft 153 are respectively connected to the first filter roller 11, the second filter roller 12 and the third filter roller 13. A first sprocket 17 is connected to the first rotating shaft 151, a second sprocket 18 is connected to the second rotating shaft 152, and a third sprocket 19 is connected to the third rotating shaft 153. A chain 20 is connected to the first sprocket 17, the second sprocket 18 and the third sprocket 19. When the first motor 91 starts, it drives the first filter roller 11 to rotate forward. The rotation of the first filter roller 11 can drive the first rotating shaft 151 to rotate forward. The rotation of the first rotating shaft 151 can drive the first sprocket 17 to rotate forward. The rotation of the first sprocket 17 can drive the chain 20 to rotate forward. Thus, the second sprocket 18 and the third sprocket 19 can be driven to rotate forward. The rotation of the second sprocket 18 and the third sprocket 19 can drive the second rotating shaft 152 and the third rotating shaft 153 to rotate forward. The rotation of the second rotating shaft 152 and the third rotating shaft 153 can drive the second filter roller 12 and the third filter roller 13 to rotate forward. The second filter roller 12 and the third filter roller 13 can transport the filtered fresh chilled fish.
[0022] Limit plates 16 are connected to the first filter roller 11, the second filter roller 12 and the third filter roller 13. The limit plates 16 have a physical blocking or guiding effect, can limit the fresh chilled fish, and prevent the fresh chilled fish from shifting.
[0023] A conveying plate is connected to the fish suction box 1 and is arranged on one side of the third filter roller 13. The conveying plate is used to convey the filtered fresh chilled fish. The conveying plate can provide limitation, and the surface of the conveying plate is flat to prevent the fresh chilled fish from being damaged during transportation and ensure the integrity of the fresh chilled fish.
[0024] The crushing assembly 10 includes a first crushing roller 21 and a second crushing roller 22. The first crushing roller 21 and the second crushing roller 22 are used in cooperation to crush the adhered ice cubes. A second driving member 23 is connected to the first crushing roller 21 and the second crushing roller 22. Crushing the ice cubes can prevent the ice cubes from sticking and caking. The second driving member 23 can drive the first crushing roller 21 and the second crushing roller 22 to rotate, preventing the ice cubes from caking. After the ice cubes are transported into the ice fresh fish transport vehicle, it is ensured that the ice fresh fish can be in full contact with the crushed ice, preventing the ice fresh fish from rotting locally. A guiding plate is provided between the first filtering roller 11, the second filtering roller 12, the third filtering roller 13 and the first crushing roller 21, the second crushing roller 22, and the guiding plate is connected to the suction box 1. The guiding plate guides the filtered ice cubes onto the first crushing roller 21 and the second crushing roller 22, ensuring that the filtered ice cubes can be completely crushed, and preventing omission when the ice cubes are crushed.
[0025] The second driving member 23 includes a second motor 101. The second motor 101 is connected to the driving sleeve 8. A first rotating shaft 24 is connected to the output shaft of the second motor 101. The first rotating shaft 24 is connected to the first crushing roller 21. A first gear 26 is connected to the first rotating shaft 24. A second rotating shaft 25 is connected to the second crushing roller 22. A second gear 27 is connected to the second rotating shaft 25, and the first gear 26 meshes with the second gear 27. When the second motor 101 is started, it can drive the first rotating shaft 24 to rotate forward. The forward rotation of the first rotating shaft 24 can drive the first gear 26 to rotate forward. The forward rotation of the first gear 26 can drive the second gear 27 to rotate in the reverse direction. The reverse rotation of the second gear 27 can drive the second rotating shaft 25 to rotate in the reverse direction. The reverse rotation of the second rotating shaft 25 can drive the second crushing roller 22 to rotate in the reverse direction. Thus, the first crushing roller 21 and the second crushing roller 22 can rotate simultaneously to crush the ice cubes into crushed ice.
[0026] Embodiment 2 The metering assembly 28 includes a placement plate 31. The placement plate 31 is connected to the inside of the suction box 1 and corresponds to the conveying plate. A first pressure sensor 37 is connected to the placement plate 31. A flipping member is connected to the conveying plate. The filtered ice fresh fish is conveyed to the placement plate 31 through the conveying plate. The first pressure sensor 37 can weigh the ice fresh fish. When the first pressure sensor 37 detects that the weight on the placement plate 31 is higher than the standard value, the flipping member is started and the first motor 91 is stopped. The flipping member can drive the placement plate 31 to flip, so that the ice fresh fish is conveyed into the suction box 1 and then conveyed into the vehicle through the double-plunger transfer pump 5.
[0027] The flipping part includes a groove 32 which is opened on the inner wall of the material suction box 1. A placing plate 31 is connected with a rotating plate 34. The rotating plate 34 is connected with a rotating shaft 30. The rotating shaft 30 is connected to the inner wall of the groove 32. An electric telescopic rod 33 is connected in the groove 32. The electric telescopic rod 33 is connected with the rotating plate 34. A switch 38 is connected in the groove 32. The switch 38 corresponds to the rotating plate 34. The rotating plate 34 can press against the switch 38 to start the motor 91. By setting the groove 32, the electric telescopic rod 33 can be protected, thereby extending the service life of the electric telescopic rod 33. When the pressure sensor 37 detects that the weight on the placing plate 31 is higher than the standard value, the electric telescopic rod 33 contracts to drive the rotating plate 34 to rotate. The rotating plate 34 rotates in the groove 32 through the rotating shaft. The rotation of the rotating plate 34 can drive the placing plate 31 to flip, so that the chilled fish is conveyed into the material suction box 1. When the rotating plate 34 rotates in the reverse direction, it can disengage from the switch 38 and turn off the motor 91.
[0028] A receiving plate 35 is connected in the material suction box 1. The receiving plate 35 corresponds to the first crushing roller 21 and the second crushing roller 22. A pressure sensor 36 is connected to the receiving plate 35. A rotating shaft three is connected to the receiving plate 35. A motor 29 is connected in the driving sleeve 8. The output shaft of the motor 29 is connected with the rotating shaft three. By setting the receiving plate 35, broken ice can be stored. The pressure sensor 36 can weigh the broken ice on the receiving plate 35. When the weight detected by the pressure sensor 36 is higher than the standard value, the motor 29 is triggered. The motor 29 can drive the rotating shaft three to rotate. The rotating shaft three can rotate in the reverse direction, and thus the broken ice on the receiving plate 35 can be conveyed into the material suction box 1 and then conveyed into the vehicle through the double-plunger transfer pump 5.
[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A negative pressure suction material transfer device, comprising: A fixed frame (6) and a suction box (1), wherein the suction box (1) is connected to the fixed frame (6), the fixed frame (6) is used to fix the suction box (1), a control console (2) is provided on one side of the fixed frame (6), a vacuum pump (7) is connected to the control console (2), a vacuum tube (3) is connected to the vacuum pump (7), and the vacuum tube (3) is connected to the suction box (1), a suction tube (4) is connected to the suction box (1), and a double-plunger delivery pump (5) is connected to the bottom end of the suction box (1), and the double-plunger delivery pump (5) is used for loading materials; It is characterized by: also including: A separation component (9), the separation component (9) being connected to the suction box (1), and the separation component (9) corresponding to the suction pipe (4), and the separation component (9) being used to separate the chilled fish from the ice; A crushing assembly (10), the crushing assembly (10) being connected to the suction box (1), and the crushing assembly (10) corresponding to the separation assembly (9), and the crushing assembly (10) being used to crush stuck ice cubes; A quantitative component (28), wherein the quantitative component (28) is arranged in the suction box (1), and the quantitative component (28) delivers a quantitative amount of crushed ice according to the weight of the fresh frozen fish delivered.
2. The negative pressure suction material transfer equipment according to claim 1 is characterized in that: The separation assembly (9) comprises a drive sleeve (8), the drive sleeve (8) being connected to the outer wall of the suction box (1), the drive sleeve (8) being connected to a motor 1 (91), the suction box (1) being connected to a filter roller 1 (11), a filter roller 2 (12) and a filter roller 3 (13), the filter roller 1 (11) being connected to a motor 1 (91), and the filter roller 1 (11), the filter roller 2 (12) and the filter roller 3 (13) being connected to a drive member 1 (15).
3. The negative pressure suction material transfer equipment according to claim 2 is characterized in that: The driving member 1 (15) comprises a rotating shaft 1 (151), a rotating shaft 2 (152) and a rotating shaft 3 (153); the rotating shaft 1 (151), the rotating shaft 2 (152) and the rotating shaft 3 (153) are respectively connected to the filter roller 1 (11), the filter roller 2 (12) and the filter roller 3 (13); the rotating shaft 1 (151) is connected to a sprocket 1 (17); the rotating shaft 2 (152) is connected to a sprocket 2 (18); the rotating shaft 3 (153) is connected to a sprocket 3 (19); and the sprocket 1 (17), the sprocket 2 (18) and the sprocket 3 (19) are connected to a chain (20).
4. The negative pressure suction material transfer equipment according to claim 3 is characterized in that: The filter roller one (11), the filter roller two (12) and the filter roller three (13) are all connected to a limiting plate (16).
5. The negative pressure suction material transfer equipment according to claim 4 is characterized in that: The suction box (1) is connected to a conveying plate, and the conveying plate is arranged on one side of the filter roller three (13), and the conveying plate is used to convey the filtered fresh frozen fish.
6. The negative pressure material suction transfer equipment according to claim 1, characterized in that: The crushing assembly (10) comprises a crushing roller one (21) and a crushing roller two (22), wherein the crushing roller one (21) and the crushing roller two (22) are used together to crush stuck ice cubes, and the crushing roller one (21) and the crushing roller two (22) are connected to a driving member two (23).
7. The negative pressure suction material transfer equipment according to claim 6, characterized in that: The second driving member (23) comprises a second motor (101), the second motor (101) being connected to the driving sleeve (8), the output shaft of the second motor (101) being connected to a first rotating shaft (24), the first rotating shaft (24) being connected to a first crushing roller (21), the first rotating shaft (24) being connected to a first gear (26), the second crushing roller (22) being connected to a second rotating shaft (25), the second rotating shaft (25) being connected to a second gear (27), and the first gear (26) being meshed with the second gear (27).
8. The negative pressure suction material transfer equipment according to claim 2, characterized in that: The quantitative component (28) comprises a placement plate (31), the placement plate (31) is connected in the suction box (1), and the placement plate (31) corresponds to a conveying plate, a pressure sensor 1 (37) is connected to the placement plate (31), and a flip member is connected to the conveying plate.
9. The negative pressure suction material transfer equipment according to claim 8, characterized in that: The flip member comprises a groove (32), wherein the groove (32) is formed on the inner wall of the suction box (1), the placement plate (31) is connected to a rotating plate (34), the rotating plate (34) is connected to a rotating shaft (30), the rotating shaft (30) is connected to the inner wall of the groove (32), an electric telescopic rod (33) is connected in the groove (32), the electric telescopic rod (33) is connected to the rotating plate (34), and a switch (38) is connected in the groove (32), the switch (38) corresponds to the rotating plate (34).
10. The negative pressure suction material transfer equipment according to claim 9, characterized in that: The suction box (1) is connected with a receiving plate (35), the receiving plate (35) corresponds to the crushing roller one (21) and the crushing roller two (22), the receiving plate (35) is connected with a pressure sensor two (36), the receiving plate (35) is connected with a rotating shaft three, the driving sleeve (8) is connected with a motor three (29), and the output shaft of the motor three (29) is connected with the rotating shaft three.