Floating suspension for front loading mower and front loading flail knife mower

Abstract

The utility model discloses a floating suspension for a front loading mower and a front loading flail knife mower, and belongs to the field of mowers. The floating suspension is installed on a mower body and comprises a suspension installation frame, a pull plate and an adjustable pull rod, a pull plate connecting piece and a pull rod connecting piece are arranged on the mower body, one end of the pull plate is rotationally connected with the lower portion of the suspension installation frame, and the other end of the pull plate is rotationally connected with the pull plate connecting piece. The adjustable pull rods are movably arranged between the upper portions of the hanging installation frames and the pull rod connecting pieces, at least one end of each adjustable pull rod is in movement fit with the corresponding hanging installation frame or the corresponding pull rod connecting piece through a kidney-shaped hole, and each adjustable pull rod is provided with a length adjusting structure. According to the floating suspension, the front loading mower can freely move in multiple directions relative to the suspension mounting frame, terrain-imitating movement is achieved, the mower is prevented from being damaged by uneven ground, meanwhile, the stable working posture of the mower can be guaranteed, and it is guaranteed that mowing work is stable and reliable.

Description

Technical Field

[0001] The utility model relates to a lawn mower, and more specifically, to a floating suspension for a front-loading lawn mower and a front-loading flail mower. Background Art

[0002] A front-loading lawn mower is a front-mounted lawn mower, which is increasingly used due to its better operation flexibility and higher grass collection efficiency.

[0003] The existing front-loading lawn mower can only adjust the height of the blade from the ground up and down by using a hydraulic system, and cannot fully float following the terrain. However, the working environment and terrain of the lawn mower are often relatively complex, which is likely to cause damage to the lawn mower. Therefore, it is urgent to improve it. The "front-mounted double-disc lawn mower and crimper" disclosed in Chinese Patent No. ZL202222127879.9 (the authorization announcement date is December 20, 2022) has a profiling suspension structure, which mainly consists of a main beam, a hydraulic rod, a profiling suspension connecting piece, etc. The telescopic movement of the hydraulic rod is used to control the whole machine to rotate around the profiling suspension connecting piece to achieve the purpose of inclination profiling. However, the limitations of this profiling suspension structure are relatively large. It can only change the tilt angle of the lawn mower, and the terrain-following floating effect and obstacle avoidance effect are relatively poor. Summary of the Invention

[0004] 1. Technical Problems to be Solved by the Utility Model

[0005] The purpose of the utility model is to overcome the deficiency of the poor terrain-following floating effect of the existing front-loading lawn mower, and provide a floating suspension for a front-loading lawn mower and a front-loading flail mower. By adopting the technical scheme of the utility model, the suspension mounting frame and the lawn mower main body are respectively connected by a pull plate and an adjustable pull rod, and the adjustable pull rod is movably matched with the suspension mounting frame or the pull rod connecting piece through a kidney-shaped hole. At the same time, the length of the adjustable pull rod can be adjusted, so that the front-loading lawn mower can move freely in multiple directions relative to the suspension mounting frame, realizing terrain-following movement, avoiding damage to the lawn mower caused by uneven ground, and at the same time ensuring the stable working posture of the lawn mower and the stable and reliable lawn mowing work.

[0006] 2. Technical Scheme

[0007] To achieve the above purpose, the technical scheme provided by the utility model is as follows:

[0008] A floating suspension for a front-loading mower of the present utility model is installed on the mower main body, and includes a suspension mounting frame, a pull plate and an adjustable pull rod. A pull plate connecting member and a pull rod connecting member are provided on the mower main body. One end of the pull plate is rotatably connected to the lower part of the suspension mounting frame, and the other end is rotatably connected to the pull plate connecting member; the adjustable pull rod is movably arranged between the upper part of the suspension mounting frame and the pull rod connecting member, and at least one end of the adjustable pull rod is movably matched with the corresponding suspension mounting frame or pull rod connecting member through an oblong hole, and the adjustable pull rod has a length adjustment structure.

[0009] Furthermore, one end of the adjustable pull rod is rotatably connected to the upper part of the suspension mounting frame, a pin shaft is movably installed at the other end of the adjustable pull rod, an oblong hole is provided on the pull rod connecting member, and the pin shaft is movably arranged in the oblong hole.

[0010] Furthermore, the lower part of the suspension mounting frame is connected to the mower main body through two pull plates.

[0011] Furthermore, a safety chain is also provided between the pull plate and the upper part of the suspension mounting frame.

[0012] Furthermore, both the pull plate connecting member and the pull rod connecting member are fixed to the mower main body by bolts.

[0013] Furthermore, both ends of the pull plate and the adjustable pull rod are of movable ball head structures.

[0014] Furthermore, the adjustable pull rod includes a threaded cylinder and screw rods respectively arranged at both ends of the threaded cylinder. The threaded cylinder is in threaded cooperation with the screw rods at both ends with opposite thread directions. When the threaded cylinder is rotated, the screw rods at both ends can move inwards or outwards simultaneously.

[0015] Furthermore, a pin hole is also provided in the middle of the threaded cylinder, and an adjusting pin for rotating the threaded cylinder is provided in the pin hole.

[0016] A front-loading flail mower of the present utility model includes the above-mentioned floating suspension.

[0017] 3. Beneficial effects

[0018] Adopting the technical solution provided by the present utility model, compared with the existing well-known technologies, the following beneficial effects are achieved:

[0019] (1) A floating suspension for a front-loading mower of the present utility model includes a suspension mounting frame, a pull plate, and an adjustable pull rod. A pull plate connecting member and a pull rod connecting member are provided on the mower main body. One end of the pull plate is rotatably connected to the lower part of the suspension mounting frame, and the other end is rotatably connected to the pull plate connecting member. The adjustable pull rod is movably arranged between the upper part of the suspension mounting frame and the pull rod connecting member, and at least one end of the adjustable pull rod is movably matched with the corresponding suspension mounting frame or pull rod connecting member through an oblong hole. The adjustable pull rod has a length adjustment structure. With the above floating suspension design, the front-loading mower can move freely in multiple directions relative to the suspension mounting frame, achieving terrain-following movement, avoiding damage to the mower caused by uneven ground, and at the same time ensuring the stable working attitude of the mower and the stable and reliable mowing work.

[0020] (2) A floating suspension for a front-loading mower of the present utility model, wherein one end of the adjustable pull rod is rotatably connected to the upper part of the suspension mounting frame, a pin shaft is movably installed at the other end of the adjustable pull rod, an oblong hole is provided on the pull rod connecting member, and the pin shaft is movably arranged in the oblong hole. Setting the oblong hole on the pull rod connecting member makes the structure simpler and more compact.

[0021] (3) A floating suspension for a front-loading mower of the present utility model, wherein the lower part of the suspension mounting frame is connected to the mower main body through two pull plates, improving the connection stability and reliability between the mower and the suspension mounting frame.

[0022] (4) A floating suspension for a front-loading mower of the present utility model, wherein a safety chain is further provided between the pull plate and the upper part of the suspension mounting frame, increasing safety protection and playing a role in safety limit.

[0023] (5) A floating suspension for a front-loading mower of the present utility model, wherein both the pull plate connecting member and the pull rod connecting member are fixed to the mower main body by bolts, with firm installation and convenient assembly.

[0024] (6) A floating suspension for a front-loading mower of the present utility model, wherein both ends of the pull plate and the adjustable pull rod are of movable ball head structures, further improving the freedom degree between the mower and the suspension and enhancing the terrain-following floating effect of the mower.

[0025] (7) A floating suspension for a front-loading mower of the present utility model, wherein the adjustable pull rod includes a threaded cylinder and screw rods respectively arranged at both ends of the threaded cylinder. The threaded cylinder is in threaded cooperation with the screw rods at both ends with opposite thread directions. When the threaded cylinder is rotated, the screw rods at both ends can move inwards or outwards simultaneously. The structure of this adjustable pull rod is simple, the adjustment is convenient, and the adjustment range is large. Cooperating with the adjustment pin to rotate the threaded cylinder, the adjustment operation is easy and labor-saving. Description of the Drawings

[0026] Figure 1 Side view structural schematic diagram of a floating suspension for a front-loading mower according to the present utility model;

[0027] Figure 2 Top view structural schematic diagram of a floating suspension for a front-loading mower according to the present utility model;

[0028] Figure 3 Overall structural schematic diagram of an adjustable pull rod in the present utility model;

[0029] Figure 4 Cross-sectional structural schematic diagram of an adjustable pull rod in the present utility model;

[0030] Figure 5 Split structural schematic diagram of an adjustable pull rod in the present utility model.

[0031] Explanation of reference numerals in the schematic diagram:

[0032] 1. Mower main body; 1-1. Pulling plate connecting piece; 1-2. Pull rod connecting piece; 1-2a. Kidney-shaped hole; 2. Suspension mounting bracket; 3. Pulling plate; 4. Adjustable pull rod; 4-1. Pin shaft; 4a. Threaded cylinder; 4a1. Pin hole; 4b. Screw rod; 4b1. Ball head; 4c. Adjusting pin; 5. Safety chain. Specific implementation manner

[0033] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the drawings and embodiments.

[0034] [Embodiment]

[0035] A floating suspension for a front-loading mower in this embodiment is installed on the mower main body 1 and is used for the front installation of the mower. Combining Figure 1 and Figure 2 As shown, this floating suspension for a front-loading mower includes a suspension mounting bracket 2, a pulling plate 3, and an adjustable pull rod 4. A pulling plate connecting piece 1-1 and a pull rod connecting piece 1-2 are provided on the mower main body 1. The pull rod connecting piece 1-2 can be arranged at a position above the pulling plate connecting piece 1-1. Both the pulling plate connecting piece 1-1 and the pull rod connecting piece 1-2 can be fixed to the mower main body 1 by bolts, with firm and reliable installation and convenient assembly. Of course, welding and other processes can also be used to fix the pulling plate connecting piece 1-1 and the pull rod connecting piece 1-2 on the mower main body 1; one end of the pulling plate 3 is rotatably connected to the lower part of the suspension mounting bracket 2, and the other end is rotatably connected to the pulling plate connecting piece 1-1; the adjustable pull rod 4 is movably arranged between the upper part of the suspension mounting bracket 2 and the pull rod connecting piece 1-2, and at least one end of the adjustable pull rod 4 is in motion cooperation with the corresponding suspension mounting bracket 2 or pull rod connecting piece 1-2 through a kidney-shaped hole, and the adjustable pull rod 4 has a length adjustment structure. Refer to Figure 1As shown, the lawn mower main body 1, the pull plate 3, the suspension mounting bracket 2 and the adjustable pull rod 4 are combined into a quadrilateral structure, enabling the lawn mower to have the freedom of flexible up and down floating, ensuring that the lawn mower main body can stably conform to the ground shape. At the same time, the kidney-shaped hole further increases the freedom of angular variation of the lawn mower main body 1, enabling it to maintain a stable mowing posture during the upward lifting process of the lawn mower. While achieving the function of imitating the terrain, the stability and reliability of the mowing work are ensured.

[0036] As a preferred embodiment, in this embodiment, one end of the adjustable pull rod 4 is rotatably connected to the upper part of the suspension mounting bracket 2. A pin shaft 4-1 is movably installed at the other end of the adjustable pull rod 4. A kidney-shaped hole 1-2a is provided on the pull rod connecting member 1-2. The pin shaft 4-1 is movably disposed in the kidney-shaped hole 1-2a. The kidney-shaped hole 1-2a is inclined. By providing the kidney-shaped hole 1-2a on the pull rod connecting member 1-2, the structure is more simple and compact. It is not difficult to understand that the kidney-shaped hole 1-2a further increases the freedom of the four-bar linkage mechanism, enabling the angle of the lawn mower to also have the effect of flexibly imitating the terrain, thereby ensuring the working posture of the lawn mower and the mowing effect. Moreover, the length of the adjustable pull rod 4 is adjustable, and the design of the kidney-shaped hole 1-2a can better cooperate with the adjustment of the adjustable pull rod 4 to ensure that the lawn mower has the best terrain-following floating range.

[0037] As Figure 2 shown, the lower part of the above-mentioned suspension mounting bracket 2 is connected to the lawn mower main body 1 through two pull plates 3. The two pull plates 3 are respectively disposed on the left and right sides of the suspension mounting bracket 2. The adjustable pull rod 4 can be located at the middle position between the two pull plates 3, which can improve the connection stability and reliability between the lawn mower and the suspension mounting bracket. In addition, as Figure 1 shown, a safety chain 5 is further provided between the upper part of the pull plate 3 and the suspension mounting bracket 2. The lower end of the safety chain 5 can be connected to the middle part of the pull plate 3. The safety chain 5 can limit the lowest floating position of the lawn mower, playing a role of safety limit and increasing the safety guarantee. When encountering a large pothole terrain, the safety chain 5 can hold the pull plate 3 and prevent the lawn mower from sinking, safely crossing the pothole area; while when encountering a protruding terrain, the lawn mower is lifted, and the safety chain 5 is slack, which will not affect the terrain-following walking of the lawn mower.

[0038] Further, in this embodiment, both ends of the pull plate 3 and the adjustable pull rod 4 are movable ball head structures, which further improves the degree of freedom between the lawn mower and the suspension and enhances the terrain-following floating effect of the lawn mower. Specifically, the above-mentioned movable ball head has a ball seat and a spherical movable head movably arranged in the ball seat. A rotating shaft for connection is provided on the spherical movable head. In this way, by using the relative rotation of the ball seat and the spherical movable head, free movement in multiple directions can be achieved, enabling the lawn mower to not only float up and down but also tilt left and right, with a better terrain-following floating effect. The above-mentioned movable ball head structure can specifically refer to the existing fish-eye universal joint ball head structure, and its specific structure will not be elaborated further.

[0039] Refer to Figures 3 to 5 As shown, in this embodiment, the above-mentioned adjustable pull rod 4 includes a threaded barrel 4a and screw rods 4b respectively arranged at both ends of the threaded barrel 4a. The threaded barrel 4a and the screw rods 4b at both ends are in threaded cooperation with opposite helix directions. When the threaded barrel 4a is rotated, the screw rods 4b at both ends can move inward or outward simultaneously. That is, the two screw rods 4b are threaded rods with different helix directions, one is a left-handed thread and the other is a right-handed thread. Two sections of threads are correspondingly arranged in the threaded barrel 4a, namely a left-handed internal thread and a right-handed internal thread. The two screw rods 4b are correspondingly threadedly connected to both ends of the threaded barrel 4a. In this way, when the threaded barrel 4a is rotated, the two screw rods 4b can move relative to or towards each other, and thus the length of the adjustable pull rod 4 can be adjusted. With the above structure, the adjustable pull rod 4 has a simple structure, is convenient to adjust, and has a large adjustment range. In addition, for the convenience of adjusting the operation of the adjustable pull rod 4, a pin hole 4a1 is also provided in the middle of the threaded barrel 4a (as Figure 4 and Figure 5 shown). An adjusting pin 4c for rotating the threaded barrel 4a is arranged in the pin hole 4a1. After the adjusting pin 4c is inserted into the pin hole 4a1, it can be used as a rotating handle to conveniently rotate the threaded barrel 4a, and thus change the length of the adjustable pull rod 4. In the adjustable pull rod 4, movable ball head structures are provided at the free ends of the two screw rods 4b, that is, a movable ball head 4b1 is provided in the ball seat at the end of the screw rod 4b.

[0040] This embodiment also relates to a front-loading flail mower. The front-loading flail mower includes the above-mentioned floating suspension, enabling the front-loading flail mower to have a terrain-following movement effect, which can avoid damage to the front-loading flail mower caused by uneven ground, and improves the use stability and service life of the front-loading flail mower.

[0041] As for other structures of the front-loading flail mower, they are similar to those of the existing flail mowers and will not be elaborated here.

[0042] The floating suspension for a front-loading mower of the present utility model is mainly used for a hydraulic-driven flail mower. During use, the suspension mounting frame is mounted on the hydraulic drive mechanism. The suspension mounting frame and the mower body are respectively connected by a pull plate and an adjustable pull rod. The adjustable pull rod is movably matched with the suspension mounting frame or the pull rod connecting piece through an oblong hole. At the same time, the length of the adjustable pull rod can be adjusted, enabling the front-loading mower to freely move relative to the suspension mounting frame in multiple directions, achieving terrain-following movement, avoiding damage to the mower caused by uneven ground, and ensuring the stable working attitude of the mower and the stable and reliable mowing work. In addition, with the design of the ball head structure, the degree of freedom of the suspension is further increased, improving the terrain-following floating effect of the mower. The front-loading flail mower applying the above floating suspension can be suitable for use in an environment with uneven ground, has good stability in terrain-following work close to the ground, and is safe and reliable in work.

[0043] The present utility model and its embodiments have been schematically described above. The description is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A floating suspension for a front - loading lawn mower, which is installed on a lawn mower body (1), is characterized in that: It includes a suspension mounting bracket (2), a pull plate (3) and an adjustable pull rod (4). A pull plate connecting member (1-1) and a pull rod connecting member (1-2) are provided on the lawn mower main body (1). One end of the pull plate (3) is rotatably connected to the lower part of the suspension mounting bracket (2), and the other end is rotatably connected to the pull plate connecting member (1-1); the adjustable pull rod (4) is movably arranged between the upper part of the suspension mounting bracket (2) and the pull rod connecting member (1-2), and at least one end of the adjustable pull rod (4) is in motion fit with the corresponding suspension mounting bracket (2) or pull rod connecting member (1-2) through an oblong hole, and the adjustable pull rod (4) has a length adjustment structure.

2. The floating suspension for a front - loading mower according to claim 1, wherein: One end of the adjustable pull rod (4) is rotatably connected to the upper part of the suspension mounting bracket (2), and a pin shaft (4-1) is movably installed at the other end of the adjustable pull rod (4). An oblong hole (1-2a) is provided on the pull rod connecting member (1-2), and the pin shaft (4-1) is movably arranged in the oblong hole (1-2a).

3. The floating suspension for a front - loading lawn mower according to claim 1, wherein: The lower part of the suspension mounting bracket (2) is connected to the lawn mower main body (1) through two pull plates (3).

4. The floating suspension for a front - loading lawn mower according to claim 1, wherein: A safety chain (5) is further provided between the pull plate (3) and the upper part of the suspension mounting bracket (2).

5. The floating suspension for a front - loading mower according to claim 1, characterized in that: Both the pull plate connecting member (1-1) and the pull rod connecting member (1-2) are fixed to the lawn mower main body (1) by bolts.

6. The floating suspension for a front - loading mower according to any one of claims 1 to 5, characterized in that: Both ends of the pull plate (3) and the adjustable pull rod (4) are movable ball head structures.

7. The floating suspension for a front-mounted mower according to claim 6, wherein: The adjustable pull rod (4) includes a threaded cylinder (4a) and screw rods (4b) respectively arranged at both ends of the threaded cylinder (4a). The threaded cylinder (4a) is in threaded fit with the screw rods (4b) at both ends with opposite thread directions. When the threaded cylinder (4a) is rotated, the screw rods (4b) at both ends can move inwards or outwards simultaneously.

8. The floating suspension for a front - loading lawn mower according to claim 7, characterized in that: An insertion pin hole (4a1) is further provided in the middle of the threaded cylinder (4a), and an adjustment pin (4c) for rotating the threaded cylinder (4a) is provided in the insertion pin hole (4a1).

9. A front-loading flail mower, characterized in that: It includes the floating suspension according to any one of claims 1 to 8.

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