Rotatable joint grain sliding pipe of elevator

Abstract

The invention relates to the technical field of grain storage and transportation equipment, and discloses an elevator rotatable joint grain sliding pipe which comprises an elevator, a discharging pipe is arranged at one end of the elevator, a rotating joint is arranged at one end of the discharging pipe, a connecting pipe is arranged at the bottom end of the rotating joint, and pull rods are symmetrically arranged at one end of the connecting pipe. A left pull rope is arranged at one end of the pull rod, a right pull rope is arranged at the other end of the pull rod, a transport cart is arranged at the bottom end of the connecting pipe, the rotating joint comprises a central articulated chute, and the top end of the central articulated chute is arranged at the bottom end of the discharging pipe. Through adjustment, the grain sliding pipe has the angle adjusting capacity, the falling point of grains can be accurately controlled, the whole rotating process is stable and smooth, grain blockage or splashing cannot be caused, the continuity and high efficiency of grain conveying are guaranteed, the manpower and time cost is reduced, and the grain loading efficiency and the overall benefits of grain storage and transportation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of grain storage and transportation equipment, in particular to a grain sliding pipe with a rotatable joint of an elevator. Background Art

[0002] In large-scale grain storage operations, the drying and loading of dried grain is crucial. At present, grain is lifted to a certain height by an elevator and then loaded into the vehicle through a grain chute. However, the existing grain chute is usually fixedly installed at the discharge port of the elevator. When grain flows out of the grain chute and is loaded into the vehicle, the grain will continue to fall at a fixed position in the bucket because the grain chute cannot change the discharge direction. For a long bucket, this causes the grain to accumulate in the same position in the bucket, forming a shape similar to a "small hill". This uneven stacking method will cause many problems. It cannot make full use of the space in the bucket, resulting in a reduction in the amount loaded each time. Uneven grain distribution may affect the driving stability of the vehicle, especially during transportation, when the grain may shift due to the shaking of the vehicle, or even cause the center of gravity of the vehicle to be unstable.

[0003] In order to load grain evenly, the driver often needs to start the vehicle forward or backward frequently. The driver needs to frequently pay attention to the accumulation of grain in the bucket and adjust the position of the vehicle in time. This not only increases the driver's workload, but also the slightest carelessness during operation may cause the grain to pile up more unevenly. The frequent start, stop and move of the vehicle will consume a lot of time, making the entire loading process slow. Especially when a large amount of grain needs to be loaded, this inefficient operation method will seriously affect the progress of the work. This operation method is not only cumbersome, but also in some small loading areas, due to the limited length, the long bucket cannot be effectively moved, resulting in low loading efficiency or even failure to complete the loading task. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a rotatable joint grain sliding pipe for an elevator, which solves the problem of low grain loading efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a grain sliding pipe with a rotatable joint of an elevator, comprising an elevator, a discharge pipe is arranged at one end of the elevator, a rotating joint is arranged at one end of the discharge pipe, a connecting pipe is arranged at the bottom end of the rotating joint, a pull rod is symmetrically arranged at one end of the connecting pipe, a left pull rope is arranged at one end of the pull rod, a right pull rope is arranged at the other end of the pull rod, and a transport vehicle is arranged at the bottom end of the connecting pipe.

[0006] Preferably, the rotating joint includes a central slide pipe, the top end of the central slide pipe is arranged at the bottom end of the discharge pipe, the top end of the central slide pipe is provided with a clamp to fix round steel, the top end of the outer wall of the central slide pipe is provided with a rain cap, and the bottom end of the rain cap is provided with a middle rotating drum.

[0007] Preferably, a lower discharge port is provided at the bottom end of the middle drum, the bottom end of the lower discharge port is provided at the top end of the connecting pipe, and a plurality of horizontal bearing fixed shafts are fixedly provided on the outer wall of the central chute.

[0008] Preferably, a horizontal lifting bearing is provided at one end of the horizontal bearing fixed shaft, the outer wall of the horizontal lifting bearing is connected to a track plate, and one side of the track plate is threadedly connected to the top end of the inner wall of the middle rotating drum.

[0009] Preferably, a middle drum frame is provided on the outer wall of the middle drum, a plurality of inspection door panels are threadedly connected to the outer wall of the middle drum via nuts, and a vertical limiting system is threadedly connected to the outer bottom wall of the inspection door panels.

[0010] Preferably, the vertical limiting system comprises a vertical limiting shaft fixing seat, the side wall of the vertical limiting shaft fixing seat is threadedly connected to the inner bottom wall of the inspection door panel, and a vertical bearing fixing shaft is arranged in the middle of the vertical limiting shaft fixing seat.

[0011] Preferably, the bottom end of the vertical bearing fixed shaft is connected to a vertical limit bearing, and the outer wall of the vertical limit bearing is arranged at the bottom end of the outer wall of the central slide pipe.

[0012] A grain sliding pipe with a rotatable joint for an elevator and a method for using the same, comprising the following steps:

[0013] S1. Connect the discharge pipe of the elevator to the top of the central slide pipe of the rotating joint with a clamp to fix the round steel, install the rain cap and the middle rotating drum in sequence, install the horizontal bearing fixed shaft and the horizontal lifting bearing on the outer wall of the central slide pipe, and connect the track plate; install the inspection door panel and the vertical limit system on the outer wall of the middle rotating drum; connect the connecting pipe with the pull rod, the left pull rope and the right pull rope at the bottom of the lower discharge port of the rotating joint, and finally park the transport vehicle;

[0014] S2. Start the elevator to let the grain flow into the bucket of the transport truck and observe the accumulation. If it is uneven, pull the left and right ropes to rotate the center slide pipe and adjust the grain drop point. During the process, the horizontal lifting bearing cooperates with the track plate and the vertical limit bearing is used to limit the grain. Ensure that the grain slide pipe is stable. Continuously monitor and adjust as needed until the bucket is full.

[0015] S3. Shut down the elevator regularly and check whether there are any problems with the external rotating joints. If a deeper inspection is required, unscrew the nuts on the inspection door panel, check the condition of the internal components, repair or replace the worn or damaged components, and then reinstall the inspection door panel.

[0016] Working principle: Start the elevator to transport the grain to the rotary joint through the discharge pipe. In the rotary joint, the central chute is firmly connected to the discharge pipe with the help of a clamp to fix the round steel, and the rain cap on the top of its outer wall plays a rainproof role. The grain flows through the central chute to the middle drum and the lower discharge port, then enters the connecting pipe and finally falls into the transport vehicle. The outer wall of the central chute is provided with a horizontal bearing fixed shaft and a horizontal lifting bearing, which cooperates with the track plate threadedly connected to the top of the inner wall of the middle drum. When it is necessary to adjust the grain landing point, pull the left or right pull rope to drive the connecting pipe and the rotary joint connected to it to rotate through the pull rod. At this time, the horizontal lifting bearing rolls along the track plate to realize the flexible rotation of the central chute. In the vertical limit system, the side wall of the vertical limit shaft fixing seat is threadedly connected to the inner bottom wall of the inspection door panel, and the vertical bearing fixing shaft in the middle is connected to the vertical limit bearing. The vertical limit bearing fits the bottom end of the outer wall of the center slide pipe, which can limit the axial displacement of the center slide pipe, ensure its structural stability during rotation, and ensure smooth and orderly grain transportation.

[0017] The present invention provides a rotatable joint grain sliding pipe for an elevator, which has the following beneficial effects:

[0018] 1. The invention enables the grain chute to have angle adjustment capability through adjustment, can accurately control the grain landing point, and the entire rotation process is smooth and stable, which will not cause grain jamming or spilling, thus ensuring the continuity and efficiency of grain transportation. It makes the grain storage and loading process more efficient and convenient, adapts to different work sites and transportation vehicle requirements, reduces manpower and time costs, and improves the efficiency of grain loading and the overall benefits of grain storage and transportation.

[0019] 2. The present invention makes full use of the space in the truck bed to ensure the stability of the center of gravity of the vehicle after loading, thereby reducing potential safety hazards in transportation. The operation is convenient and efficient. Compared with the traditional fixed grain chute that relies on frequent movement of vehicles to adjust the stacking position, it can greatly shorten the loading time and improve work efficiency. The grain landing point can also be adjusted by pulling the corresponding pull rope, effectively solving the problem of uneven grain stacking and effectively ensuring the loading quality.

[0020] 3. The present invention provides a key guarantee for the stable operation of the rotary joint through the vertical limit system, effectively limits the axial displacement of the center slide pipe, eliminates the risk of grain blockage and leakage caused by axial movement, ensures smooth and continuous transportation of grain, maintains the overall structural stability of the rotary joint, and greatly reduces the probability of equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the local structure of the rotary joint of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the central slide pipe of the present invention;

[0024] Figure 4 The top view and cross-sectional view of the track plate of the present invention are shown;

[0025] Figure 5 It is a top view and a cross-sectional view of the middle rotating drum of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the vertical limiting system of the present invention;

[0027] Figure 7 It is a partial cross-sectional view of the vertical limit bearing of the present invention.

[0028] Among them, 1. elevator; 2. rotating joint; 3. transport vehicle; 4. rain cap; 5. middle drum; 6. lower discharge port; 7. center chute; 8. horizontal lifting bearing; 9. horizontal bearing fixed shaft; 10. clamp fixed round steel; 11. middle drum frame; 12. track plate; 13. maintenance door panel; 14. vertical limit system; 15. vertical limit shaft fixing seat; 16. vertical bearing fixed shaft; 17. vertical limit bearing; 18. left pull rope; 19. right pull rope. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] Please see attached Figure 1 An embodiment of the present invention provides a grain sliding pipe with a rotatable joint of an elevator, including an elevator 1, a discharge pipe is arranged at one end of the elevator 1, a rotary joint 2 is arranged at one end of the discharge pipe, a connecting pipe is arranged at the bottom end of the rotary joint 2, a pull rod is symmetrically arranged at one end of the connecting pipe, a left pull rope 18 is arranged at one end of the pull rod, a right pull rope 19 is arranged at the other end of the pull rod, and a transport vehicle 3 is arranged at the bottom end of the connecting pipe.

[0032] Specifically, the elevator 1 serves as the power starting point of the entire system, lifting the grain from a low place to a certain height, and the grain then enters the rotary joint 2 through the discharge pipe at one end thereof. The rotary joint 2 is a key structure for achieving flexible transportation. The central chute 7 is located inside the rotary joint 2, receiving the grain from the discharge pipe, and realizing angle adjustment under external control. The pull rods symmetrically arranged at one end of the connecting pipe are connected to the left pull rope 18 and the right pull rope 19. The operator applies tension to the connecting pipe by pulling the left pull rope 18 or the right pull rope 19 with the help of the pull rod. Since the bottom end of the connecting pipe is connected to the rotary joint 2, and the upper part receives the grain flow from the rotary joint 2, the tension causes the rotary joint 2 to rotate around the axis of the central chute 7 as a whole, thereby changing the direction of grain outflow. Finally, the grain falls into the transport vehicle 3 at the bottom through the connecting pipe.

[0033] Through control, not only the space of the truck bed is fully utilized, but also the center of gravity of the vehicle after loading is ensured to be stable, reducing potential safety hazards during transportation. At the same time, the entire system is convenient and efficient to operate. Compared with the traditional method of adjusting the stacking position by frequently moving the vehicle with fixed grain pipes, it greatly shortens the loading time and improves the operation efficiency. By pulling the left pull rope 18 and the right pull rope 19 to adjust the grain drop point, the problem of uneven grain stacking caused by the fixed grain pipe is solved, and the loading quality is guaranteed.

[0034] Please see attached Figure 1 -Attached Figure 7 The rotary joint 2 includes a central slide pipe 7, the top of the central slide pipe 7 is arranged at the bottom end of the discharge pipe, the top of the central slide pipe 7 is provided with a clamp fixing round steel 10, the top of the outer wall of the central slide pipe 7 is provided with a rainproof cap 4, the bottom end of the rainproof cap 4 is provided with a middle rotating drum 5, the bottom end of the middle rotating drum 5 is provided with a lower discharge port 6, the bottom end of the lower discharge port 6 is provided at the top of the connecting pipe, the outer wall of the central slide pipe 7 is fixedly provided with a plurality of horizontal bearing fixing shafts 9, one end of the horizontal bearing fixing shaft 9 is provided with a horizontal lifting bearing 8, the outer wall of the horizontal lifting bearing 8 is connected with a track plate 12, one side of the track plate 12 is threadedly connected to the top end of the inner wall of the middle rotating drum 5, the outer wall of the middle rotating drum 5 is provided with a middle rotating drum frame 11, the outer wall of the middle rotating drum 5 is threadedly connected with a plurality of inspection door panels 13 through nuts, and the outer bottom wall of the inspection door panel 13 is threadedly connected with a vertical limit system 14.

[0035] Specifically, the center chute 7 serves as the main body of the grain conveying channel, and its top end is firmly connected to the bottom end of the discharge pipe of the elevator 1 by means of a clamp fixing round steel 10, ensuring that the grain can smoothly transition from the elevator 1 to the grain chute. The rain cap 4 set at the top of the outer wall of the center chute 7 can effectively block the invasion of rainwater, prevent rainwater from mixing into the grain and affecting the quality or causing rust and damage to the equipment. The middle rotating drum 5 under the rain cap 4 works in coordination with the center chute 7, and the middle rotating drum 5 is connected to the top of the connecting pipe through the lower discharge port 6 at its bottom end, constructing a complete downstream path for grain. The horizontal lifting bearing 8 connected to one end of a plurality of horizontal bearing fixing shafts 9 fixed to the outer wall of the center chute 7 is tightly matched with the track plate 12 threadedly connected to the top of the inner wall of the middle rotating drum 5. When the angle of the grain chute needs to be adjusted, the center chute 7 rotates relative to the middle drum 5 under external force, and the horizontal support bearing 8 rolls along the track plate 12. This rolling friction mode can not only bear part of the weight of the center chute 7, but also ensure its smooth rotation, greatly reducing the friction force's resistance to the rotation. At the same time, the middle drum frame 11 set on the outer wall of the middle drum 5 plays a role in supporting and stabilizing the overall structure of the middle drum 5, and the several inspection door panels 13 connected to the outer wall of the middle drum 5 through nuts and threads provide a convenient passage for daily maintenance and inspection of the equipment.

[0036] By adjusting the angle of the grain chute, the grain landing point can be accurately controlled. During the loading process, no matter how the position of the transport vehicle or the length of the truck bed changes, the grain can be evenly spread in the truck bed through simple operations to avoid the grain piling up into small hills. The entire rotation process is smooth and will not cause grain jamming or spilling, ensuring the continuity and efficiency of grain transportation. It makes the drying and loading process in grain storage more efficient and convenient, adapts to different work sites and transportation vehicle requirements, reduces manpower and time costs, and improves the efficiency of grain loading and the overall benefits of grain storage and transportation.

[0037] Please see attached Figure 2 , Attachment Figure 5 -Attached Figure 7 The vertical limit system 14 includes a vertical limit shaft fixing seat 15, the side wall of the vertical limit shaft fixing seat 15 is threadedly connected to the inner bottom wall of the inspection door panel 13, a vertical bearing fixing shaft 16 is arranged in the middle of the vertical limit shaft fixing seat 15, the bottom end of the vertical bearing fixing shaft 16 is connected to a vertical limit bearing 17, and the outer wall of the vertical limit bearing 17 is arranged at the bottom end of the outer wall of the central slide pipe 7.

[0038] Specifically, the vertical limit shaft fixing seat 15 serves as the basic supporting structure, and its side wall is tightly connected to the inner bottom wall of the inspection door panel 13 through threads. This stable connection method provides a reliable fulcrum for subsequent components. A vertical bearing fixing shaft 16 is installed in the middle of the vertical limit shaft fixing seat 15, which plays a role of bearing and positioning. The vertical limit bearing 17 located at the bottom end of the vertical bearing fixing shaft 16 has its outer wall in close contact with the bottom end of the outer wall of the center slide 7. When the center slide 7 is rotating and has an axial movement tendency due to the external force pulling the left pull rope 18 or the right pull rope 19, the vertical limit bearing 17 relies on the friction with the outer wall of the center slide 7 and its own limiting function to prevent the center slide 7 from excessively deviating in the axial direction, limit its movement within a reasonable range, and ensure that the entire rotary joint 2 rotates smoothly within a given space.

[0039] Through the axial limitation of the center slide pipe 7. On the one hand, it effectively prevents the center slide pipe 7 from moving up and down during the process of rotating and adjusting the angle, ensures the smooth flow of grain in the grain slide pipe, avoids grain blockage or leakage caused by the displacement of the center slide pipe 7, and ensures the continuity of grain transportation. On the other hand, it makes the overall structure of the rotary joint 2 more stable, and can maintain a stable working state even during long-term and high-intensity use, reduce the wear of the equipment caused by shaking and displacement, extend the service life of the equipment, and improve the reliability of equipment operation. The center slide pipe 7 may produce a large displacement in the axial direction due to factors such as frequent angle adjustment operations and grain flow impact, which will not only interfere with the normal transportation of grain, but also may cause the connection parts to loosen and be damaged, affecting the safety and reliability of the entire grain slide pipe system. The vertical limit bearing 17 solves the axial instability of the rotary joint 2 during operation.

[0040] Please see attached Figure 1 -Attached Figure 7 , a rotatable joint grain pipe for an elevator and a method of using the same, comprising the following steps:

[0041] S1. Connect the discharge pipe of the hoist 1 to the top of the central slide pipe 7 of the rotary joint 2 with a clamp to fix the round steel 10, install the rain cap 4 and the middle drum 5 in sequence, install the horizontal bearing fixing shaft 9 and the horizontal lifting bearing 8 on the outer wall of the central slide pipe 7, and connect the track plate 12; install the inspection door panel 13 and the vertical limit system 14 on the outer wall of the middle drum 5; connect the connecting pipe with the pull rod, the left pull rope 18 and the right pull rope 19 at the bottom of the discharge port 6 at the lower part of the rotary joint 2, and finally park the transport vehicle 3;

[0042] S2, start the elevator 1, let the grain flow into the bucket of the transport vehicle 3, observe the accumulation, if it is uneven, pull the left pull rope 18 and the right pull rope 19 to drive the central slide pipe to rotate 7, adjust the grain drop point, and rely on the cooperation of the horizontal lifting bearing 8 and the track plate 12 and the vertical limit bearing 17 to ensure that the grain slide pipe is stable, continue to monitor and adjust as needed until the bucket is full;

[0043] S3. Shut down the elevator 1 regularly and check whether there are any problems with the external part of the rotating joint 2. If a deeper inspection is required, unscrew the nuts of the inspection door panel 13, check the condition of the internal parts, repair or replace the worn or damaged parts, and then reinstall the inspection door panel 13.

[0044] Specifically, the round steel bar 10 is fixed by a clamp to tightly connect the discharge pipe of the elevator 1 with the top of the central chute 7 of the rotary joint 2, ensuring the seamless connection of the grain transmission path from the elevator 1 to the grain chute, laying the foundation for subsequent smooth transportation. Then install the rain cap 4, the principle of which is to prevent rainwater from mixing into the grain by blocking rainwater, prevent the grain from being damp and deteriorating, and prevent the equipment parts from being rusted and damaged due to water erosion, so as to ensure the quality of grain and the life of the equipment. Then install the middle rotating drum 5, which cooperates with the central chute 7 to form the main structure of the rotary joint 2. The horizontal bearing fixed shaft 9 and the horizontal lifting bearing 8 are installed on the outer wall of the central chute 7, and the track plate 12 is connected. When the rotary joint 2 needs to rotate to adjust the angle, the horizontal lifting bearing 8 will roll along the track plate 12. Compared with the sliding friction, this rolling friction design greatly reduces the friction force, so that the central chute 7 can be easily and flexibly rotated, while bearing part of the weight of the central chute 7 to ensure a smooth rotation process. An inspection door panel 13 and a vertical limit system 14 are installed on the outer wall of the middle rotating drum 5. The inspection door panel 13 is convenient for subsequent maintenance personnel to quickly open and check the status of internal components. The working principle of the vertical limit system 14 is to limit the axial position of the center slide pipe 7 through the cooperation of its internal components to ensure its stability during rotation. Specifically, the side wall of the vertical limit shaft fixing seat 15 is threadedly connected to the inner bottom wall of the inspection door panel 13 to provide a support point for the entire system. The vertical bearing fixing shaft 16 carries the vertical limit bearing 17. The outer wall of the vertical limit bearing 17 is in close contact with the bottom end of the outer wall of the center slide pipe 7 to limit the axial displacement of the center slide pipe 7. Finally, the connecting pipe with a pull rod, a left pull rope 18 and a right pull rope 19 is connected to the bottom end of the lower discharge port 6 of the rotating joint 2, and the transport vehicle 3 is parked. The pull rope and the pull rod combination provides a convenient means for the subsequent manual control of the angle of the rotating joint 2.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grain chute with a rotatable joint for an elevator, comprising an elevator (1), characterized in that: A discharge pipe is provided at one end of the elevator (1), a rotating joint (2) is provided at one end of the discharge pipe, a connecting pipe is provided at the bottom end of the rotating joint (2), a pull rod is symmetrically provided at one end of the connecting pipe, a left pull rope (18) is provided at one end of the pull rod, a right pull rope (19) is provided at the other end of the pull rod, and a transport vehicle (3) is provided at the bottom end of the connecting pipe.

2. The rotatable joint grain pipe for an elevator according to claim 1, characterized in that: The rotary joint (2) comprises a central slide pipe (7), the top end of the central slide pipe (7) is arranged at the bottom end of the discharge pipe, a clamp fixing round steel (10) is arranged at the top end of the central slide pipe (7), a rainproof cap (4) is arranged at the top end of the outer wall of the central slide pipe (7), and a middle rotating drum (5) is arranged at the bottom end of the rainproof cap (4).

3. The rotatable joint grain pipe for an elevator according to claim 2 is characterized in that: The bottom end of the middle rotating drum (5) is provided with a lower discharge port (6), the bottom end of the lower discharge port (6) is arranged at the top end of the connecting pipe, and the outer wall of the central chute (7) is fixedly provided with a plurality of horizontal bearing fixed shafts (9).

4. The rotatable joint grain pipe for an elevator according to claim 3 is characterized in that: A horizontal lifting bearing (8) is provided at one end of the horizontal bearing fixing shaft (9), and the outer wall of the horizontal lifting bearing (8) is connected to a track plate (12), and one side of the track plate (12) is threadedly connected to the top end of the inner wall of the middle rotating drum (5).

5. The rotatable joint grain pipe for an elevator according to claim 2, characterized in that: The outer wall of the middle rotating drum (5) is provided with a middle rotating drum frame (11), the outer wall of the middle rotating drum (5) is threadedly connected to a plurality of inspection door panels (13) via nuts, and the outer bottom wall of the inspection door panels (13) is threadedly connected to a vertical limiting system (14).

6. The rotatable joint grain pipe for an elevator according to claim 5, characterized in that: The vertical limiting system (14) comprises a vertical limiting shaft fixing seat (15), the side wall of the vertical limiting shaft fixing seat (15) is threadedly connected to the inner bottom wall of the inspection door panel (13), and a vertical bearing fixing shaft (16) is arranged in the middle of the vertical limiting shaft fixing seat (15).

7. The rotatable joint grain pipe for an elevator according to claim 6, characterized in that: The bottom end of the vertical bearing fixed shaft (16) is connected to a vertical limit bearing (17), and the outer wall of the vertical limit bearing (17) is arranged at the bottom end of the outer wall of the central slide pipe (7).

8. A rotatable joint grain pipe for an elevator and a method of using the same according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Connect the discharge pipe of the hoist (1) to the top of the central slide pipe (7) of the rotary joint (2) with a clamp to fix the round steel (10), install the rain cap (4) and the middle rotary drum (5) in sequence, install the horizontal bearing fixed shaft (9) and the horizontal lifting bearing (8) on the outer wall of the central slide pipe (7), and connect the track plate (12); install the inspection door plate (13) and the vertical limit system (14) on the outer wall of the middle rotary drum (5); connect the connecting pipe with the pull rod, the left pull rope (18) and the right pull rope (19) at the bottom of the lower discharge port (6) of the rotary joint (2), and finally park the transport vehicle (3); S2. Start the elevator (1) to allow the grain to flow into the bucket of the transport vehicle (3). Observe the accumulation. If it is uneven, pull the left and right ropes (18) and (19) to drive the central chute (7) to rotate and adjust the grain drop point. During the process, the horizontal lifting bearing (8) cooperates with the track plate (12) and the vertical limit bearing (17) is used to limit the grain flow to ensure that the grain chute is stable. Continuously monitor and adjust as needed until the bucket is full. S3. Shut down the hoist (1) regularly and check whether there are any problems with the external part of the rotating joint (2). If a deeper inspection is required, unscrew the nuts of the inspection door panel (13), check the condition of the internal parts, repair or replace the worn or damaged parts, and then reinstall the inspection door panel (13).

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