Agricultural implement loading, unloading and transferring platform with automatic rotating function
The automatic rotation of the agricultural machinery loading and unloading platform is achieved through a hydraulic rotating mechanism and gear transmission system, which solves the problem of limited rotation angle, improves the convenience and efficiency of operation, and is suitable for the transfer of agricultural machinery in complex environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-14
AI Technical Summary
The existing agricultural machinery loading and unloading platforms have limited rotation angles, requiring manual intervention for rotation adjustment, which leads to cumbersome and inefficient operation and makes it difficult to operate flexibly in complex and narrow environments.
The system employs a hydraulic rotating mechanism and gear transmission system, combined with a rotary motor, rotary reducer, and rotary support, to achieve automatic rotation of the transfer platform. Through a central rotary joint and a multi-stage reduction structure, it provides a flexible power source and unlimited rotation function.
The automated rotation of the transfer platform has been achieved, which has improved the convenience and efficiency of loading and unloading agricultural machinery, adapted to the multi-angle operation needs in complex environments, and enhanced the flexibility and efficiency of agricultural mechanization.
Smart Images

Figure CN224118350U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of agricultural machinery loading and unloading equipment and transfer platform, specifically relating to an agricultural machinery loading and unloading transfer platform with automatic rotation function. Background Technology
[0002] Agricultural machinery, as an important component of modern agriculture, is widely used in field operations, harvesting, transportation, and processing of agricultural products. With the acceleration of agricultural modernization, mechanization has greatly improved agricultural production efficiency and reduced the labor intensity of farmers. With technological advancements, agricultural machinery is constantly being innovated and its applications are becoming increasingly broad, including tractors, harvesters, seeders, and sprayers. Especially in large-scale agricultural production, machinery plays a crucial role.
[0003] In existing technologies, agricultural machinery loading and unloading platforms mostly rely on manual or mechanical traction for loading and unloading. However, this method is cumbersome and inefficient. The rotation angle of the platform is usually limited, requiring manual intervention to rotate it. This makes the platform difficult to adapt to complex and narrow loading and unloading environments, hindering flexible angle adjustments for operation. To improve the convenience and efficiency of agricultural machinery during transport, an agricultural machinery loading and unloading platform with automatic rotation function is needed to enhance automation, simplify operation, meet user needs, and improve overall work efficiency and accuracy. Utility Model Content
[0004] The purpose of this utility model is to provide an agricultural machinery loading and unloading transfer platform with automatic rotation function, so as to solve the problem of the limited rotation angle of the transfer platform mentioned in the background art. The rotation adjustment requires manual intervention, which requires the use of a hydraulic rotation mechanism under the transfer platform to improve the efficiency of agricultural machinery loading and unloading and the convenience of operation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an agricultural machinery loading and unloading transfer platform with automatic rotation function, comprising a transfer platform upper body, a rotation system, a base, and a ground track. The base is installed on the ground track and is movably installed on the ground track via movable wheels on both sides. A central rotary joint is installed at the center of the base. The rotation system is installed in the middle part of the base. The large gear in the inner ring of the rotation support is connected to the small gear of the rotating component. A hydraulic reduction rotary motor is installed above the small gear. The top of the rotary motor is connected to an oil supply pipe and an oil outlet pipe. The bottom of the transfer platform is provided with mounting holes connected to the rotation support. A movable plate is installed at the tail of the transfer platform via a connecting block.
[0006] Preferably, the rotary support is installed on the central frame of the base, and upper and lower sealing rings are installed on the top and bottom of the outer ring turntable of the rotary support. Grease nipples are installed on the side of the outer ring turntable, and a sliding groove is opened on the side of the inner ring large gear. An isolation block and a rolling element are installed in the sliding groove. The outer ring turntable and the inner ring large gear are assembled together.
[0007] Preferably, the central rotary joint is installed in the center of the base. The central rotary joint is externally mounted by a housing. The housing has an oil port and a groove. An end cap is fixedly installed at the rear end of the housing. A positioning plate is fixedly installed on the outer edge of the rear end of the housing. The interior is mounted by a spindle. The spindle has an annular oil passage and a groove. The interior of the spindle has a vertical oil passage.
[0008] Preferably, the rotary motor is mounted on a rotary reducer. The top end cover of the rotary motor has an oil inlet and an oil outlet. An oil distribution plate is installed below the end cover. The cylinder is mounted outside the oil distribution plate. Nine plunger assemblies are installed inside the cylinder. A swashplate is installed below the plunger assemblies and is connected to a bearing.
[0009] Preferably, the rotary reducer is installed below the rotary motor, a sun gear is installed in the rotary reducer and fixed on the input shaft, planet gears are installed on the planet carrier and mesh with the sun gear and the outer ring gear, a bearing is installed below the planet carrier, and a transmission output shaft is installed at the tail end of the reducer, forming a multi-stage reduction structure.
[0010] Preferably, two connecting blocks are fixedly installed at the tail end of the transfer platform, and movable plates are fixedly installed on the two connecting blocks.
[0011] The beneficial effects of this utility model are:
[0012] In this invention, the device utilizes a rotating system to automatically rotate the transfer platform, enabling multi-angle loading and unloading of agricultural implements. This is convenient and fast. The automatic rotation of the transfer platform is achieved through the cooperation of the rotary motor, rotary reducer, rotary support, and central rotary joint. This allows for unlimited rotation within a variable range, ensuring the degree of automation and convenience when using the transfer platform. At the same time, the cooperation of the connecting block and the movable plate ensures the feasibility of the rotating platform in loading and unloading agricultural implements, improving the overall loading and unloading efficiency. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model;
[0014] Figure 2 This is a side view of the structure of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model;
[0015] Figure 3This is a three-dimensional structural diagram of the rotating system of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model.
[0016] Figure 4 This is a partial cross-sectional view of the rotating motor 201 of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model.
[0017] Figure 5 This is a side sectional view of the rotary reducer 301 of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model.
[0018] Figure 6 This is a top sectional view of the rotary reducer 301 of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model.
[0019] Figure 7 This is a partial cross-sectional view of the central rotary joint 401 of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model.
[0020] Figure 8 This is a cross-sectional view of the rotating support 501 of an agricultural machinery loading and unloading transfer platform with automatic rotation function proposed in this utility model.
[0021] In the diagram: 101. Upper body of the transfer platform; 102. Intermediate support; 103. Platform base; 201. Rotary motor; 202. Oil outlet; 203. Oil inlet; 204. Cylinder block; 205. Transmission bearing; 206. Oil distribution plate; 207. Piston assembly; 208. Swashplate; 301. Rotary reducer; 302. Transmission output shaft; 303. Pinion gear; 304. Input shaft; 305. Sun gear; 306. Planetary gear; 307. Outer ring gear; 308. Planetary carrier; 401. Central rotary joint; 4 02. Housing; 403. Rotary oil port; 404. End cover; 405. Spindle; 406. Vertical oil passage; 407. Annular oil passage; 408. Groove; 409. Positioning plate; 501. Rotary bearing; 502. Inner ring gear; 503. Upper sealing ring; 504. Grease nipple; 505. Positioning hole; 506. Outer ring turntable; 507. Lower sealing ring; 508. Rolling element; 509. Spacer block; 510. Slide groove; 601. Ground track; 602. Playing wheel; 701. Loading / unloading movable plate; 702. Connecting block; Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-8 An agricultural implement loading and unloading transfer platform with automatic rotation function includes a transfer platform upper body 101, an intermediate support seat 102, a platform base 103, a rotary motor 201, a rotary reducer 301, a central rotary joint 401, a rotary support 501, and a ground track 601. The transfer platform base 103 is connected to the ground track 601 via movable wheels 602 on both sides. Two connecting blocks 702 are installed at the tail of the transfer platform 101 to connect to the loading and unloading movable plate 701. The transfer platform upper body 101 is connected to the platform base 103 via the lower intermediate support seat 102. The rotary support 501 is installed in the middle part of the platform base 103. The central rotary joint 401 is installed in the center of the rotary support 501. The large gear 502 of the inner ring of the rotary support 501 meshes with the small gear 303 of the transmission component. The rotary reducer 301 is installed above the small gear 303. The rotary reducer 301 and the rotary motor 201 are assembled via a transmission shaft 205. The bottom of the upper part 101 of the transfer platform is provided with a positioning hole 505, which is fixedly connected to the rotary support 501;
[0024] In an optional embodiment: the rotary support 501 is installed in the center of the base, and the top and bottom of the outer ring turntable 506 of the rotary support 501 are equipped with an upper sealing ring 503 and a lower sealing ring 507. A grease nipple 504 is installed on the side of the outer ring turntable 506. A sliding groove 510 is opened on the side of the inner ring large gear 502. An isolation block 509 and a rolling element 508 are installed in the sliding groove 510. The outer ring turntable 506 and the inner ring large gear 502 are assembled together.
[0025] It should be noted that the upper sealing ring 503 and lower sealing ring 507 at the top and bottom prevent external dust, moisture, and other contaminants from entering the rotating bearing, while also preventing lubricating oil leakage. The grease nipple 504 on the side 506 of the outer ring turntable adopts a standardized interface design to ensure that a continuous oil film is formed between the rolling elements 508 and the groove 510, in conjunction with the evenly distributed layout of the isolation blocks 509. The rolling elements 508 set in the groove 510 are made of high-precision bearing steel and are arranged at equal intervals in conjunction with the isolation blocks 509.
[0026] In an optional embodiment: the central rotary joint 401 is installed in the center of the platform base 103. The central rotary joint 401 is externally mounted by a housing 402. The housing 402 has an oil port 403 and a groove 408. An end cap 404 is fixedly installed at the rear end of the housing 402. A positioning plate 409 is fixedly installed on the outer edge of the rear end of the housing 402. The housing 402 is internally mounted by a spindle 405. The spindle 405 has an annular oil passage 407 and a groove 408. A vertical oil passage 406 is formed inside the spindle 405.
[0027] It should be noted that the annular oil passage 407 and the vertical oil passage 406 inside the spindle 405 form a three-dimensional intersecting oil circuit layout, supporting the simultaneous transmission of hydraulic oil or lubricating medium through multiple channels. The spindle 405 and the housing 402 adopt a separate design and are fixed by bolts to the end cap 404.
[0028] In an optional embodiment: the rotary motor 201 is mounted on the rotary reducer 301. The rotary motor 201 has an oil inlet 203 and an oil outlet 202 at the top, and an oil distribution plate 206 is installed below it. A cylinder body 204 is installed on the outside of the oil distribution plate 206. Nine plunger assemblies 207 are installed inside the cylinder body 204. A swash plate 208 is installed below the plunger assemblies 207 and is connected to the transmission bearing 205.
[0029] It should be noted that the swashplate 208 is linked to the drive bearing 205, allowing clockwise or counterclockwise rotation by adjusting the swashplate angle. The distributor plate 206 forms a closed-loop oil circuit with the oil inlet 203 and oil outlet 202, using the switching between high and low pressure oil chambers to drive the reciprocating motion of the plunger assembly 207. The top is connected to the cylinder block 204 by flange bolts, allowing for quick disassembly and replacement of the plunger assembly 207 or the distributor plate 206 without the need to completely disassemble the rotary motor 201.
[0030] In an optional embodiment: the rotary reducer 301 is installed below the rotary motor 201, a sun gear 305 is installed in the rotary reducer 301 and fixed on the input shaft 304, a planetary gear 306 is installed on the planet carrier 308, the planetary gear 306 meshes with the sun gear 305 and meshes with the outer ring gear 307, and a transmission output shaft 302 is installed at the tail of the reducer 301, forming a multi-stage reduction structure.
[0031] It should be noted that the planetary gears 306 adopt a uniformly distributed symmetrical layout, with three sets of planetary gears 306 meshing with the sun gear 305, and the sun gear 305 engaging with the outer ring gear 307 in multiple stages. The modular nested layout of the planetary gears 306 and the sun gear 305, combined with the coaxial design of the input shaft 304 and the transmission output shaft 302, allows for quick connection to external transmission components. The end of the transmission output shaft 302 is provided with a keyway or flange interface to support quick connection to external transmission components.
[0032] Working principle of this utility model:
[0033] When using this device, the hydraulic system is first started. The hydraulic pump delivers hydraulic oil to the rotary motor 201 via the central rotary joint 401. The annular oil passage 407 and the vertical oil passage 406 inside the central rotary joint 401 form a multi-channel three-dimensional oil circuit, ensuring a continuous supply of oil during the platform's rotation. The hydraulic oil enters the cylinder 204 through the oil inlet 203 at the top of the motor 201, driving the nine plunger assemblies 207 to reciprocate. The movement of the plunger assemblies 207 is converted into rotational power through the linkage between the swashplate 208 and the transmission bearing 205. The tilt angle adjustment of the swashplate 208 can control the rotation direction and torque of the motor output shaft 205, achieving stepless speed regulation and providing a flexible power source for the rotation of the platform 101.
[0034] The high-speed, low-torque power output from the rotary motor 201 is transmitted to the rotary reducer 301 via a coupling. Inside the reducer 301, the sun gear 305, planetary gear 306, and outer ring gear 307 engage in multiple stages to reduce the rotational speed and significantly increase the output torque. The transmission output shaft 302 at the tail end of the reducer 301 transmits the high-torque power to the inner ring large gear 502 of the rotary support 501, driving it to rotate relative to the outer ring turntable 506.
[0035] The rotating system is considered as a whole. The bottom of the inner ring of the rotating system is fixedly installed to the platform base 103 and does not rotate. The top of the outer ring of the rotating system is connected to the intermediate support 102. The relative rotation of the outer ring turntable 506 drives the intermediate support 102 to rotate, thereby enabling the platform 101 to rotate 360° without restriction, meeting the multi-angle loading and unloading needs of agricultural machinery. The outer ring turntable 506 achieves smooth rolling through the rolling elements 508 and the isolation block 509 in the slide groove 510. The upper sealing ring 503 and the lower sealing ring 507 prevent hydraulic oil leakage, and the grease nipple 504 on the side supports regular lubrication and maintenance. The loading and unloading movable plate 701 at the rear of the platform is connected by the connecting block 702 and automatically adjusts its tilt angle as the platform 101 rotates to form a loading and unloading channel. The movable wheels 602 on both sides of the base 103 move longitudinally along the ground track 601, allowing the platform 101 to be quickly positioned to different working positions, realizing the coordinated operation of "rotation + movement".
[0036] This device, with hydraulic drive at its core, achieves automated and efficient loading and unloading of agricultural implements through the coordinated design of speed reduction and torque amplification, gear transmission, and dynamic oil circuits. Its features, such as unrestricted rotation and multi-channel oil circuits, significantly improve the flexibility and efficiency of agricultural mechanization operations, making it particularly suitable for the transportation needs of heavy agricultural implements in complex environments such as hilly and mountainous areas.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An agricultural implement loading and unloading transfer platform with automatic rotation function, comprising a transfer platform upper body (101), an intermediate support seat (102), a platform base (103), a rotary motor (201), a rotary reducer (301), a central rotary joint (401), a rotary support (501), and a ground track (601); the platform base (103) is movably mounted on the ground track (601) via movable wheels (602) on both sides; the transfer platform upper body (101) is connected to the intermediate support seat (102), the bottom of the inner ring of the rotation system is fixedly installed to the platform base (103), and the top of the outer ring of the rotation system is connected to the intermediate support seat (102); the rotary support (501), the central rotary joint (401), the rotary reducer (301), the rotary reducer (401), the rotary reducer (501), the rotary reducer (501), the rotary reducer (6 ... The adapter (401), rotary motor (201), and rotary reducer (301) together constitute the rotary system; the rotary support (501) is fixedly installed in the center of the platform base (103), and its inner ring large gear (502) meshes with the small gear (303) of the transmission component; the small gear (303) is connected to the rotary motor (201) through the rotary reducer (301); the central rotary joint (401) is located at the center of the rotary support (501); the bottom of the transfer platform upper body (101) is provided with a positioning hole (505) and is fixedly connected to the rotary support (501); the tail of the transfer platform upper body (101) is equipped with a loading and unloading movable plate (701) through a connecting block (702); Its features are: The rotary support (501) includes an outer ring turntable (506) and an inner ring large gear (502). The top and bottom of the outer ring turntable (506) are respectively equipped with an upper sealing ring (503) and a lower sealing ring (507), and a grease nipple (504) is provided on its side. The inner ring large gear (502) has a sliding groove (510) on its side, and an isolation block (509) and a rolling element (508) are installed in the sliding groove (510). The central rotary joint (401) includes a housing (402) and a spindle (405). The housing (402) has an oil port (403) and a groove (408) and is fixed at the rear end by an end cap (404). The spindle (405) has an annular oil passage (407) and a vertical oil passage (406) inside, forming a multi-channel three-dimensional oil circuit. The rotary motor (201) includes a cylinder (204), a plunger assembly (207), and a swashplate (208); the swashplate (208) is linked to a bearing (205), and the plunger assembly (207) consists of nine units, which are evenly distributed along the cylinder (204); The rotary reducer (301) includes a sun gear (305), a planetary gear (306), and an outer ring gear (307); the sun gear (305) is fixed on the input shaft (304), the planetary gear (306) is mounted on the planet carrier (308), and meshes with the sun gear (305) and the outer ring gear (307); the reducer (301) is provided with a transmission output shaft (302) at the tail end; The loading and unloading movable plate (701) is connected to the tail of the upper part (101) of the transfer platform through two connecting blocks (702), and the tilt angle is automatically adjusted as the platform rotates; The movable wheel (602) cooperates with the ground track (601) to enable the platform base (103) to move longitudinally along the track, realizing the coordinated operation of rotation and movement.
2. The agricultural implement loading and unloading transfer platform with automatic rotation function according to claim 1, characterized in that: The planetary gears (306) are configured in three groups, evenly distributed between the sun gear (305) and the outer ring gear (307), forming a multi-stage reduction structure.