Durable manganese steel mower blade

Abstract

The utility model relates to a durable manganese steel hay mower blade, which belongs to the technical field of hay mowers and comprises a cutter head, a manganese steel cutting edge is sleeved on the outer side of the cutter head, a mounting ring matched with the manganese steel cutting edge is arranged on the outer side of the cutter head, and a fixing component is arranged on one side, far away from the mounting ring, of the manganese steel cutting edge. The fixing assembly comprises a limiting plate elastically installed on the outer side of the cutter head, an elastic assembly is arranged between the limiting plate and the cutter head, a fixing screw is inserted into the inner side of the limiting plate, and the fixing screw penetrates through the manganese steel blade and is in threaded connection to the inner side of the installation ring. The elastic assembly comprises a connecting rod arranged in the cutter head, and the outer wall of the connecting rod is sleeved with a movable sleeve and a spring. According to the durable manganese steel mower blade, through the split design of the manganese steel cutting edge and the cutter head, a new manganese steel cutting edge can be conveniently replaced after abrasion, the whole blade does not need to be replaced, materials are saved, the maintenance cost of the blade is reduced, and the durable manganese steel mower blade has good practicability.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, specifically a durable manganese steel lawnmower blade. Background Technology

[0002] The working principle of a lawnmower used for cutting grass is as follows: the motor is used as a power source to transmit power to the main shaft. The gear at the other end of the main shaft transmits the speed-adjustable power to the grass-pressing roller through the gearbox, universal joint, etc. When the material to be processed enters between the upper and lower grass-pressing rollers, it is clamped by the grass-pressing rollers and fed into the chopping mechanism at a certain speed. After being chopped by the high-speed rotating lawnmower blades, it is thrown out of the machine through the grass outlet.

[0003] After a period of use, lawnmower blades suffer severe wear and require replacement. However, existing lawnmower blades are typically one-piece designs. For example, CN202697256U discloses a lawnmower blade comprising a circular blade disc with a central mounting hole, blade bodies evenly distributed along the outer edge of the disc, and blades with cutting edges. The angle between the cutting edge and the disc surface is 30-60°. Replacing the entire blade is cumbersome, wastes materials, and increases maintenance costs. Therefore, a durable manganese steel lawnmower blade is proposed to address these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a durable manganese steel lawnmower blade with a split structure, which saves on maintenance costs and solves the problem that existing lawnmower blades are usually one-piece structures, requiring the replacement of the entire blade, which is troublesome, wasteful of materials, and increases blade maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a durable manganese steel lawnmower blade, including a blade disc, a manganese steel blade sleeved on the outer side of the blade disc, an installation ring that cooperates with the manganese steel blade on the outer side of the blade disc, and a fixing component on the side of the manganese steel blade away from the installation ring.

[0006] The fixing component includes a limiting plate elastically mounted on the outside of the cutter head, an elastic component is provided between the limiting plate and the cutter head, and a fixing screw is inserted into the inner side of the limiting plate. The fixing screw passes through the manganese steel cutting edge and is threaded to the inner side of the mounting ring.

[0007] The elastic component includes a connecting rod disposed inside the cutter head, and a movable sleeve and a spring are respectively sleeved on the outer wall of the connecting rod. The movable sleeve is connected to a limiting plate.

[0008] Furthermore, a mounting hole is provided in the middle of the cutter head, and several ventilation holes are also provided on the outer wall of the cutter head.

[0009] Furthermore, the number of fixing components is set to four groups, and the four groups of fixing components are evenly distributed on the outer side of the cutter head.

[0010] Furthermore, the inner side of the manganese steel blade is provided with an annular groove that matches the mounting ring, and both the annular groove and the limiting plate have through holes corresponding to the fixing screws.

[0011] Furthermore, the inner side of the mounting ring is provided with a threaded hole, which is adapted to the fixing screw.

[0012] Furthermore, the connecting rod is fixedly connected to the inside of the cutter head, the end of the movable sleeve away from the manganese steel cutting edge abuts against one end of the spring, and the end of the spring away from the movable sleeve abuts against the inside of the cutter head.

[0013] Furthermore, a connecting block is fixedly connected between the movable sleeve and the limiting plate, and a strip-shaped opening is provided on the outer wall of the cutter disc, with the connecting block penetrating through the inner side of the strip-shaped opening.

[0014] Compared with the prior art, this utility model provides a durable manganese steel lawnmower blade, which has the following beneficial effects:

[0015] This durable manganese steel lawnmower blade features a manganese steel cutting edge mounted on the outside of the blade disc via a limiting plate and mounting ring. The blade is secured by screws on the limiting plate. When the blade becomes severely worn, the screws can be removed, and the limiting plate can be slid towards the blade disc for quick removal and replacement. The separate design of the blade and blade disc facilitates replacement of worn manganese steel blades without the need to replace the entire blade, saving materials, reducing blade maintenance costs, and demonstrating excellent practicality. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a side sectional view of the structure of this utility model;

[0018] Figure 3 This is a partial structural side sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the mounting ring of this utility model.

[0020] In the diagram: 1. Cutter head; 2. Mounting hole; 3. Manganese steel blade; 4. Mounting ring; 5. Limiting plate; 6. Fixing screw; 7. Connecting rod; 8. Movable sleeve; 9. Spring; 10. Connecting block; 11. Strip opening; 12. Threaded hole; 13. Vent hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1:

[0023] Please see Figures 1 to 4 In this embodiment, a durable manganese steel lawnmower blade includes a blade disc 1, a manganese steel blade 3 sleeved on the outer side of the blade disc 1, and an installation ring 4 that cooperates with the manganese steel blade 3 on the outer side of the blade disc 1.

[0024] The cutter head 1 has a mounting hole 2 in the middle and several ventilation holes 13 on its outer wall.

[0025] It should be noted that the inner side of the manganese steel blade 3 is provided with an annular groove that matches the mounting ring 4, and both the annular groove and the limiting plate 5 have through holes corresponding to the fixing screws 6.

[0026] In this embodiment, a fixing component is provided on the side of the manganese steel blade 3 away from the mounting ring 4. The fixing component includes a limiting plate 5 that is elastically installed on the outside of the cutter head 1. An elastic component is provided between the limiting plate 5 and the cutter head 1. A fixing screw 6 is inserted into the inner side of the limiting plate 5. The fixing screw 6 passes through the manganese steel blade 3 and is threaded to the inner side of the mounting ring 4.

[0027] The number of fixing components is set to four sets, and the four sets of fixing components are evenly distributed on the outside of the cutter head 1.

[0028] In this embodiment, a threaded hole 12 is provided on the inner side of the mounting ring 4, and the threaded hole 12 is adapted to the fixing screw 6.

[0029] Example 2:

[0030] Please see Figure 3 Based on Embodiment 1, the elastic component includes a connecting rod 7 disposed inside the cutter head 1. A movable sleeve 8 and a spring 9 are respectively sleeved on the outer wall of the connecting rod 7. The movable sleeve 8 is connected to the limiting plate 5. The connecting rod 7 is fixedly connected inside the cutter head 1. The end of the movable sleeve 8 away from the manganese steel blade 3 abuts against one end of the spring 9. The end of the spring 9 away from the movable sleeve 8 abuts against the inside of the cutter head 1. A connecting block 10 is fixedly connected between the movable sleeve 8 and the limiting plate 5. A strip-shaped opening 11 is opened on the outer wall of the cutter head 1, and the connecting block 10 passes through the inner side of the strip-shaped opening 11.

[0031] The working principle of the above embodiments is as follows:

[0032] In use, the manganese steel blade 3 is installed on the outside of the cutter disc 1 through the limiting plate 5 and the mounting ring 4. The manganese steel blade 3 is locked and fixed by the fixing screw 6 on the limiting plate 5. When the manganese steel blade 3 is severely worn, the fixing screw 6 is removed and the limiting plate 5 is slid to one side of the cutter disc 1 to facilitate the quick removal and replacement of the manganese steel blade 3.

[0033] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical methods. Any method that can achieve its beneficial effects can be implemented. In addition, all electrical components mentioned in this article are electrically connected to the main controller and power supply. The main controller is a conventional and known device, and the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this article.

[0034] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A durable manganese steel lawnmower blade, comprising a blade disc (1), characterized in that: The outer side of the cutter head (1) is fitted with a manganese steel blade (3), and the outer side of the cutter head (1) is provided with a mounting ring (4) that cooperates with the manganese steel blade (3). A fixing component is provided on the side of the manganese steel blade (3) away from the mounting ring (4). The fixing component includes a limiting plate (5) elastically mounted on the outside of the cutter head (1), an elastic component is provided between the limiting plate (5) and the cutter head (1), and a fixing screw (6) is inserted into the inner side of the limiting plate (5). The fixing screw (6) passes through the manganese steel blade (3) and is threaded to the inner side of the mounting ring (4). The elastic component includes a connecting rod (7) disposed inside the cutter head (1), and a movable sleeve (8) and a spring (9) are respectively sleeved on the outer wall of the connecting rod (7). The movable sleeve (8) is connected to the limiting plate (5).

2. The durable manganese steel lawnmower blade according to claim 1, characterized in that: The cutter head (1) has a mounting hole (2) in the middle and several ventilation holes (13) on the outer wall of the cutter head (1).

3. The durable manganese steel lawnmower blade according to claim 1, characterized in that: The number of fixing components is set to four groups, and the four groups of fixing components are evenly distributed on the outside of the cutter head (1).

4. The durable manganese steel lawnmower blade according to claim 1, characterized in that: The inner side of the manganese steel blade (3) is provided with an annular groove that matches the mounting ring (4), and both the annular groove and the limiting plate (5) have through holes corresponding to the fixing screws (6).

5. The durable manganese steel lawnmower blade according to claim 1, characterized in that: The mounting ring (4) has a threaded hole (12) on its inner side, which is adapted to the fixing screw (6).

6. The durable manganese steel lawnmower blade according to claim 1, characterized in that: The connecting rod (7) is fixedly connected to the inside of the cutter head (1). The end of the movable sleeve (8) away from the manganese steel blade (3) abuts against one end of the spring (9). The end of the spring (9) away from the movable sleeve (8) abuts against the inside of the cutter head (1).

7. A durable manganese steel lawnmower blade according to claim 1, characterized in that: A connecting block (10) is fixedly connected between the movable sleeve (8) and the limiting plate (5). A strip-shaped opening (11) is provided on the outer wall of the cutter disc (1), and the connecting block (10) passes through the inner side of the strip-shaped opening (11).

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