Suspension lifting device for agricultural tractor
By designing a suspension lifting device for agricultural tractors, using the combination of hydraulic cylinders and lifting rods, the problem of the suspension device causing the swing and inclination of the agricultural tool in the prior art is solved, and the stability and service life of the equipment are improved.
Patent Information
- Application Number
- CN202422054616.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-23
AI Technical Summary
Existing suspension lifting devices will cause swing and tilt when working in farm tools, resulting in equipment breakage and inconvenient use.
A suspension lifting device for agricultural tractors is designed, including hydraulic cylinders, fixed rings, lifting rods and connecting rods. The lifting of the lifting rods is controlled by hydraulic cylinders, and the fixed rings and connecting rods are used to limit positions to prevent tilts, and the height and swing of the lifting rods are adjusted through adjustment holes and movable connecting blocks.
It effectively prevents equipment damage and inconvenience caused by the swing and inclination of the suspension device during transportation and work, and improves the stability and service life of the equipment.
Smart Images
Figure CN222928792U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of suspension lifting devices, in particular to a suspension lifting device for an agricultural tractor. Background Technique
[0002] The general term for the rod mechanism that suspends agricultural implements on a tractor, lifts and lowers the agricultural implements, and transmits traction force. The agricultural implements are suspended on the tractor for operation, which is convenient to operate, can improve the operation performance of the tractor unit, and simplify the structure of the implements. There are two suspension methods: suspension type and semi-suspension type. The suspension type means that when the implement is in the transport position, the implement is completely lifted and supported by the tractor. The semi-suspension type means that when the implement is in the transport position, its front end is lifted by a hydraulic suspension device, and the rear part is pushed by a hydraulic cylinder to lift the working part of the implement off the ground.
[0003] When the existing suspension lifting device is installed and used, the agricultural implement will swing the suspension during operation. Excessive swinging will cause the equipment to break, and the suspension lifting cannot be synchronized, resulting in the tilting of the agricultural implement, which brings certain adverse effects to the use process. To solve the deficiencies of the existing technology, we propose a suspension lifting device for an agricultural tractor. Content of the Utility Model
[0004] The main purpose of the utility model is to provide a suspension lifting device for an agricultural tractor, which can effectively solve the problems in the background technique.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A suspension lifting device for an agricultural tractor, including a hydraulic cylinder. A fixed ring is arranged above the hydraulic cylinder. There are two groups of the hydraulic cylinder and the fixed ring. A connecting rod is arranged inside the hydraulic cylinder. First fixing blocks are arranged at both ends of the connecting rod. A second fixing block is arranged between the connecting rod and the hydraulic cylinder. A supporting block is arranged at the bottom of the hydraulic cylinder. A fixing pin is arranged inside the supporting block. A lifting rod is arranged outside the fixing pin. Adjusting holes are arranged on the inner walls of the middle end and the inner wall of the supporting block of the lifting rod. The fixing pin passes through the inside of the adjusting hole. Fixing holes are arranged on the inner walls of the front end and the rear end of the lifting rod.
[0007] Preferably, there are two sets of lifting rods. On one side of the two sets of lifting rods, there are fixed rods. The number of the fixed rods is two. An active connection block is arranged between the fixed rods and the lifting rods. An expansion rod is arranged inside the fixed rod. The expansion rod slides inside the fixed rod. One end of the expansion rod is provided with a threaded rod. A limit block is arranged on the outer side of the expansion rod. A spring is arranged inside the expansion rod. One end of the spring is provided with a hook, and the other end is connected to the expansion rod. A limiter and an adjusting rod are arranged on the outer side of the threaded rod. A fixed column is arranged on the outer surface of the limiter. One end of the fixed rod is provided with a fixed base, and the other end is connected to the threaded rod. An active connection block is arranged between the fixed base and the fixed rod. Fixed screws are arranged on the inner wall of the fixed base.
[0008] Preferably, a fixed ring is fixedly arranged above the hydraulic cylinder. First fixing blocks are fixedly arranged at both ends of the connecting rod. The connecting rod is detachably connected to the hydraulic cylinder through the arranged first fixing blocks and second fixing blocks.
[0009] Preferably, a support block is fixedly arranged below the hydraulic cylinder. The lifting rod is detachably connected to the support block through the arranged adjusting holes and fixing pins.
[0010] Preferably, the fixed rod is detachably connected to the lifting rod through the arranged active connection block. The spring is detachably connected to the inside of the fixed rod through the arranged hook. The expansion rod slides inside the fixed rod. A limit block is fixedly arranged on the outer side of the expansion rod.
[0011] Preferably, one end of the expansion rod is fixedly provided with a threaded rod. The limiter is threadedly connected to the threaded rod. A fixed column is fixedly arranged on the outer side of the limiter. The adjusting rod is threadedly connected to the threaded rod. The fixed rod is detachably connected to the fixed base through the arranged active connection block.
[0012] Beneficial effects
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. In the utility model, the top of the hydraulic cylinder is connected to the tractor through the arranged fixed ring. One end of the lifting rod is connected to the tractor through the arranged fixing holes, and the other end is connected to the agricultural implement. The hydraulic cylinder is used to control the up and down movement of the lifting rod, so as to lift and lower the agricultural implement. The connecting rod is connected to the hydraulic cylinder through the arranged first fixing blocks and second fixing blocks. The connecting rod is used to limit the two hydraulic cylinders to prevent the two lifting rods from being not on the same horizontal line during the up and down lifting process, resulting in the inclination of the agricultural implement.
[0015] 2. In the present utility model, the provided adjustment holes facilitate the staff to connect the hydraulic cylinder with the lifting rod. At the same time, multiple groups of adjustment holes are provided to facilitate the staff to adjust the lifting height of the lifting rod, thereby adjusting the lifting height of the farm tool. The fixed rod is connected to the lifting rod through the provided movable connection block, and the side of the lifting rod is limited by the provided fixed rod and adjustment rod to prevent the equipment from shifting during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 is a schematic diagram of the hydraulic cylinder structure of the present utility model;
[0018] Figure 3 is a schematic diagram of the connecting rod structure of the present utility model;
[0019] Figure 4 is a schematic diagram of the connection device structure of the present utility model;
[0020] Figure 5 is a schematic diagram of the adjustment device structure of the present utility model.
[0021] In the figure: 1, hydraulic cylinder; 2, fixed ring; 3, connecting rod; 4, first fixing block; 5, second fixing block; 6, support block; 7, fixing pin; 8, lifting rod; 9, fixing hole; 10, adjustment hole; 11, fixed rod; 12, movable connection block; 13, adjustment rod; 14, limiter; 15, spring; 16, hook; 17, limiting block; 18, threaded rod; 19, fixing column; 20, fixed base; 21, fixing screw; 22, telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] Such as Figures 1 - 3As shown in the figure, a suspension lifting device for an agricultural tractor includes a hydraulic cylinder 1. The top of the hydraulic cylinder 1 is fixed to the tractor through a set fixing ring 2. One end of a lifting rod 8 is connected to the tractor through a set fixing hole 9, and the other end is connected to an agricultural implement. A connecting rod 3 is connected to two groups of hydraulic cylinders 1 through a set first fixing block 4 and second fixing block 5. By the telescoping of the hydraulic cylinder 1, the lifting of the lifting rod 8 is controlled, facilitating the staff to control the lifting of the agricultural implement. The connecting rod 3 is used to limit the two groups of hydraulic cylinders 1 to keep their upper and lower heights consistent, preventing the inconsistent lifting heights of the two groups of lifting rods 8, which may cause the agricultural implement to tilt and affect the working efficiency. Through a set of multiple adjustment holes 10, it is convenient for the staff to adjust the range of the up and down movement of the lifting rod 8 according to the working requirements, thereby adjusting the lifting height of the agricultural implement, facilitating the installation and disassembly of the equipment by the staff, and facilitating the cleaning of the equipment by the staff.
[0024] As Figures 4 - 5 As shown in the figure, a suspension lifting device for an agricultural tractor. A fixed rod 11 is connected to the lifting rod 8 through a set movable connection block 12. A spring 15 is connected to the inside of the fixed rod 11 through a set hook 16, and the other end is connected to the inside of a telescopic rod 22. During the operation of the equipment, the lifting rod 8 will generate lateral swing, affecting the service life of the equipment and reducing the working efficiency. The side of the lifting rod 8 is limited by the set fixed rod 11. When the lifting rod 8 swings inward, the spring 15 will be stretched. The spring 15 is used to stretch the lifting rod 8 in the opposite direction to prevent it from swinging inward. When the lifting rod 8 swings outward, the fixed rod 11 is limited by a set limit block 17 to fixedly support the lifting rod 8 and prevent it from swinging outward significantly. The fixed rod 11 is connected to the tractor through a set fixed base 20 and fixing screws 21. Two groups of fixed rods 11 are connected through a set adjusting rod 13 and threaded rod 18. Since the adjusting rod 13 and the threaded rod 18 are in threaded connection and a limit block is provided on the outside of the telescopic rod 22, the telescopic rod 22 will not rotate inside the fixed rod 11. By rotating the adjusting rod 13, the mutual movement of the two groups of threaded rods 18 can be controlled, and the distance between the two groups of fixed rods 11 can be adjusted, thereby facilitating the staff to adjust the swing amplitude of the lifting rod 8, greatly reducing the labor intensity of the staff, facilitating the operation of the workers, improving the practicability of the equipment, reducing the input cost, and enhancing the market competition advantage.
[0025] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A suspension lifting device for an agricultural tractor, comprising a hydraulic cylinder (1), characterized in that: A fixing ring (2) is arranged above the hydraulic cylinder (1), and the hydraulic cylinder (1) and the fixing ring (2) are arranged in two groups. A connecting rod (3) is arranged on the inner side of the hydraulic cylinder (1), and first fixing blocks (4) are arranged at both ends of the connecting rod (3). A second fixing block (5) is arranged between the connecting rod (3) and the hydraulic cylinder (1). A supporting block (6) is arranged at the bottom of the hydraulic cylinder (1), and a fixing pin (7) is arranged inside the supporting block (6). A lifting rod (8) is arranged outside the fixing pin (7). The inner wall of the middle end of the lifting rod (8) and the inner wall of the supporting block (6) are both provided with adjustment holes (10), and the fixing pin (7) passes through the inside of the adjustment hole (10). The inner wall of the front end and the inner wall of the rear end of the lifting rod (8) are both provided with fixing holes (9).
2. The suspension lifting device for an agricultural tractor according to claim 1, characterized in that: There are two groups of lifting rods (8), one side of the two groups of lifting rods (8) is provided with a fixed rod (11), there are two groups of fixed rods (11), a movable connection block (12) is provided between the fixed rod (11) and the lifting rod (8), a telescopic rod (22) is provided inside the fixed rod (11), the telescopic rod (22) slides inside the fixed rod (11), a threaded rod (18) is provided at one end of the telescopic rod (22), a limiting block (17) is provided on the outside of the telescopic rod (22), and a spring is provided inside the telescopic rod (22). (15), one end of the spring (15) is provided with a hook (16), and the other end is connected to the telescopic rod (22), the outer side of the threaded rod (18) is provided with a limiter (14) and an adjusting rod (13), the outer surface of the limiter (14) is provided with a fixing column (19), one end of the fixed rod (11) is provided with a fixing base (20), and the other end is connected to the threaded rod (18), a movable connecting block (12) is provided between the fixing base (20) and the fixing rod (11), and the inner wall of the fixing base (20) is provided with a fixing screw (21).
3. The suspension lifting device for an agricultural tractor according to claim 1, characterized in that: A fixing ring (2) is fixedly arranged above the hydraulic cylinder (1), first fixing blocks (4) are fixedly arranged at both ends of the connecting rod (3), and the connecting rod (3) is detachably connected to the hydraulic cylinder (1) via the first fixing block (4) and the second fixing block (5).
4. The suspension lifting device for an agricultural tractor according to claim 1, characterized in that: A support block (6) is fixedly arranged below the hydraulic cylinder (1), and the lifting rod (8) is detachably connected to the support block (6) via an adjusting hole (10) and a fixing pin (7).
5. The suspension lifting device for an agricultural tractor according to claim 2, characterized in that: The fixing rod (11) is detachably connected to the lifting rod (8) via a movable connecting block (12); the spring (15) is detachably connected to the inside of the fixing rod (11) via a hook (16); and a limiting block (17) is fixedly provided on the outside of the telescopic rod (22).
6. The suspension lifting device for an agricultural tractor according to claim 2, characterized in that: A threaded rod (18) is fixedly provided at one end of the telescopic rod (22), the stopper (14) is threadedly connected to the threaded rod (18), a fixing column (19) is fixedly provided on the outer side of the stopper (14), the adjusting rod (13) is threadedly connected to the threaded rod (18), and the fixing rod (11) is detachably connected to the fixing base (20) via a movable connecting block (12).