Garden suspension type electric mower

Abstract

The utility model relates to the technical field of agricultural mechanical structures, and particularly discloses a garden suspension type electric mower which comprises a suspension lifting system, a mower main disc, an auxiliary mowing disc assembly and an auxiliary mowing disc return spring. The suspension lifting system is connected with the mower main disc through a pin shaft, and the mower main disc is connected with the auxiliary mowing disc assembly through a pin shaft and the auxiliary mowing disc return spring. The problem of mowing omission in small-space (underground fruit trees and trees) mowing operation is solved; the working efficiency in a complex environment during garden mowing operation is improved; the protection on roots of crops during operation is improved, and the crop growth is prevented from being damaged; and the device is suitable for the current small unmanned agricultural machinery operation machine tool.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery structures, and particularly relates to a garden hanging type electric lawn mower. Background Art

[0002] At present, lawn mower equipment has popularized mechanized operations. Lawn mowing equipment can be divided into large lawn mowers and small lawn mowers. The use conditions of large lawn mowers must be equipped with large horsepower power output equipment, and there are many restrictions on the operating environment, which is only suitable for large-area operations. Small lawn mowers can make up for the deficiencies of large lawn mowers and perform small-space and fine operations. However, most of them are manual hand-held and small hand-push lawn mowers. While making up for the deficiencies of large lawn mowers, more manpower is required. When operating at the roots of some crops, manpower needs to operate carefully to avoid damaging the crops, thereby reducing the operating efficiency. At the same time, small lawn mowing equipment cannot completely cut weeds, and it is easy to miss cutting. For complex garden environments, the ground is not ideally flat, and the roots of planted crops are generally relatively protruding. Existing lawn mowers often cut the protruding soil, causing damage to the blades and the root systems of crops in the soil. Content of the Utility Model

[0003] The purpose of the utility model is to provide an agricultural machinery anti-collision mechanism to solve the problems raised in the above background art.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A garden hanging type electric lawn mower, comprising a suspension lifting system, a lawn mower main disk, an auxiliary lawn mower disk assembly, and an auxiliary lawn mower disk return spring;

[0006] The suspension lifting system is connected to the lawn mower main disk through a pin shaft, and the lawn mower main disk is connected to the auxiliary lawn mower disk assembly through a pin shaft and the auxiliary lawn mower disk return spring.

[0007] Preferably, the lawn mower main disk includes a main frame, a lawn mower disk suspension and an electrical box are arranged on the upper part of the main frame, several support wheels are arranged around the main frame, and several cutter disk assemblies penetrate through the inside.

[0008] Preferably, the cutter disk assembly includes a driving motor, a tool holder, a cutter disk and a blade connected in sequence from top to bottom.

[0009] Preferably, the auxiliary lawn mower disk assembly includes a horizontal return spring shaft, a bearing, an auxiliary disk flipping bracket, a connecting arm, an auxiliary lawn mower disk and a cutter disk assembly;

[0010] The horizontal return spring shaft penetrates and connects the bearing, the auxiliary disk flipping bracket and the connecting arm;

[0011] The connecting arm is connected to the auxiliary mowing disc;

[0012] The cutter disc assembly is fixedly installed on the auxiliary mowing disc.

[0013] Preferably, a bearing seat, a shaft sleeve and an auxiliary rotating disc are sequentially connected to the lower part of the auxiliary mowing disc;

[0014] The edge of the auxiliary rotating disc is made of rubber soft material.

[0015] Preferably, the suspension and lifting system includes a spherical joint bearing, an upper lifting frame and a lower pull rod;

[0016] The spherical joint bearing is connected to the upper lifting frame;

[0017] The lower pull rod includes an adjusting rod, threaded connectors provided at both ends of the adjusting rod, and locking nuts sleeved on the threaded connectors.

[0018] Preferably, a threaded pull rod, an upper pull rod, a locking nut and a floating lower pull rod are sequentially connected between the connecting arm and the auxiliary rotating disc; at the same time, a floating spring is provided between the connecting arm and the auxiliary rotating disc.

[0019] Preferably, a bearing end cover is provided at the bottom of the bearing.

[0020] Preferably, the cutter disc assemblies provided on the main mowing disc of the mower are arranged in a pin shape.

[0021] Preferably, the number of the supporting wheels is 4, 2 are symmetrically arranged at the front part and 2 are symmetrically arranged at the rear part.

[0022] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: solving the problem of missed mowing in mowing operations in small spaces (under fruit trees, trees); improving the working efficiency in complex environments during garden mowing operations; improving the protection of crop roots during operations, avoiding damage to crops and affecting growth; adapting to current small-scale unmanned agricultural operation tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0024] Figure 1 is the overall exploded view of the embodiment of the present utility model;

[0025] Figure 2 is the exploded view of the suspension and lifting system of the embodiment of the present utility model;

[0026] Figure 3Cross-sectional view of the main disk of the lawn mower according to an embodiment of the present utility model;

[0027] Figure 4 Exploded view of the cutter disk assembly according to an embodiment of the present utility model;

[0028] Figure 5 Exploded view of the auxiliary lawn mower disk assembly according to an embodiment of the present utility model;

[0029] In the figure: suspension lifting system 1, spherical joint bearing 1.1, upper lifting frame 1.2, lower pull rod 1.3, locking nut 1.3.1, adjusting rod 1.3.2, threaded connection head 1.3.3, main disk of the lawn mower 2, main frame 2.1, cutter disk suspension 2.2, electrical box 2.3, support wheel 2.4, cutter disk assembly 2.5, drive motor 2.5.1, cutter seat 2.5.2, cutter disk 2.5.3, blade 2.5.4, auxiliary lawn mower disk return spring 3, auxiliary lawn mower disk assembly 4, horizontal return spring shaft 4.1, bearing 4.2, auxiliary disk flipping bracket 4.3, connecting arm 4.4, bearing end cover 4.5, threaded pull rod 4.6, floating spring 4.7, upper pull rod 4.8, locking nut 4.9, floating lower pull rod 4.10, auxiliary lawn mower disk 4.11, bearing seat 4.12, bushing 4.13, auxiliary rotating disk 4.14. Detailed implementation manners

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0031] For example, in the embodiment Figures 1 to 5 as shown:

[0032] The suspension lifting system is connected to the main disk of the lawn mower through a pin shaft, and there are three connection points. One at the upper end is a long arc hole, and the function of this hole is that the main lawn mower disk can be adjusted with a small angle of undulation to adapt to the undulation of the ground, so as to better fit the ground and realize the follow-up function of the main lawn mower disk with the undulation of the ground; there are two connection points at the lower end, which can make the cutter disk run smoothly; at the same time, the suspension lifting system is the interface for connecting the entire cutter disk and the power equipment, and this structure is a miniature standard three-point suspension structure, which can be adapted to the docking of all general equipment; the main disk of the lawn mower is connected to the auxiliary lawn mower disk through a pin shaft and is also connected by an auxiliary lawn mower disk return spring.

[0033] The spherical joint bearing is welded to the upper lifting frame to form a component. The number of lower pull rods used is 2, and the threaded connection heads are used in pairs. The right-hand thread and left-hand thread are used to connect with the adjusting rod by thread, and at the same time, locking nuts are used for locking to play a role in telescopic adjustment.

[0034] The main frame is fixedly connected to the mowing disc suspension by bolts; the electrical box is fixed to the main frame with bolts; the main frame is connected to 4 sets of support wheels by pin shafts. At the same time, multiple sets of pin holes are provided on the support wheels to adjust the ground clearance of the main frame; the cutter disc assembly is connected to the main frame with bolts and is arranged in a "pin" shape; the drive motor is connected to the tool holder and the cutter disc with fine-thread bolts to the shaft head of the drive motor; the blades are connected to both ends of the cutter disc with bolts. The centrifugal force generated by rotation is used to cut weeds, and at the same time, it can protect the blades from being damaged by collision with sundries such as stones.

[0035] The horizontal return spring, bearing, sub-disc flipping bracket, connecting arm, and bearing end cover are assembled with circlips. The sub-disc flipping bracket and the main disc of the mower are assembled with a pin shaft and a sub-mowing disc return spring, which can realize the horizontal obstacle avoidance and return function of the sub-mowing disc; the threaded tie rod, floating spring, upper tie rod, lock nut, floating lower tie rod, and sub-mowing disc are connected with a pin shaft and a floating spring. Among them, the upper tie rod can be telescopically adjusted and fixed with a lock nut to realize the vertical angle adjustment of the sub-mowing disc; the bearing seat, shaft sleeve, and sub-rotating disc are connected with bearings and circlips, which can allow the sub-rotating disc to rotate. At the same time, the sub-rotating disc is completely protected by soft rubber material, which can realize the rotational contact between the sub-rotating disc and fruit trees, trees, etc. in the garden during operation, and protect the growth conditions of crops to the greatest extent, avoiding damage to the bark of fruit trees, trees and other crops; the drive motor is fixed on the sub-mowing disc with bolts; the tool holder and the cutter disc are fixed to the shaft head of the drive motor with fine-thread bolts.

[0036] The cutter disc assembly is fixed to the main frame with bolts and is arranged in a "pin" shape. The blade trajectories overlap each other, so that when the blades rotate, it can be avoided that the multi-cutter disc blades do not have missed cutting after one operation, and only one operation is required. At the same time, a sub-mowing disc is equipped. When the soft rubber on the outside of the sub-rotating disc encounters crops, the sub-mowing disc can be retracted backward to perform a fitting avoidance of the crops. When passing over the crops, the sub-mowing disc return spring is used to make the sub-mowing disc return. At the same time, when the sub-mowing disc contacts the crops, the sub-rotating disc can rotate, so as to completely cooperate with the crops for operation, avoiding missed cutting of weeds near the crops and protecting the root bark of the crops, and only one operation is required.

[0037] The mower is driven by all-electric and mechanical methods; the suspension lifting system adopts a standard three-point suspension structure (there is no standard for the micro three-point suspension in China), and an adjustable lower tie rod, which can match the standard unmanned power equipment in the current market. The standardized structure improves the market adaptability of the machine.

[0038] The threaded tie rod and upper tie rod of the auxiliary mowing disc, and the locking nut can adjust the auxiliary mowing disc in the vertical direction. It can be adjusted fixedly according to different terrains to adapt to the root convex terrain of different crops. At the same time, the floating spring can perform real-time automatic adjustment functions to meet the uneven terrain between soils during the operation of the same crop.

[0039] The specific installation effects are as follows:

[0040] 1. The cutter disc assembly is fixed to the main frame with bolts and is arranged in a "pin" shape, enabling the cutter discs to be longitudinally offset, so that the rotation trajectories of the blades overlap horizontally without interference.

[0041] 2. The long arc holes at the upper end of the mowing disc suspension can be suspended. After the lifting system is connected to the main disc of the mower through a pin shaft, it can float in real time to meet the operation of the mower on undulating ground.

[0042] 3. For the auxiliary mowing disc, the auxiliary mowing disc return spring can be used to avoid obstacles for the auxiliary mowing disc in the horizontal direction. The upper tie rod can fix and adjust the auxiliary mowing disc in the vertical direction, and the floating spring can perform real-time adjustment of the auxiliary mowing disc in the vertical direction to meet the soil convex terrain at the roots of crops.

[0043] 4. The auxiliary rotating disc of the auxiliary mowing disc can rotate during operation. The soft rubber on the outer ring of the auxiliary rotating disc is used to completely cut and combine with the crops and move in a rotating form, protecting the roots of the crops to the greatest extent.

[0044] Innovation points:

[0045] 1. The suspension lifting system is designed with two lower tie rods and a lifting frame; the lower tie rods can be telescopically adjusted by rotating the adjusting rods. The two ends of the adjusting rods are connected by right-handed threads and left-handed threads. When rotating, the lower tie rods can be telescoped. After adjusting the length, the length of the lower tie rods is fixed using the double-nut locking principle. The advantage of using such a suspension lifting system is that the adjustable lower tie rods can meet the lifting angles of more equipment, and the three-point suspension can form a four-bar linkage structure to lift the equipment parallelly.

[0046] 2. The upper tie rod at the connection between the auxiliary mowing disc and the main mowing disc is of a rotary telescopic type. By rotating to adjust the length of the upper tie rod, a certain angle can be formed between the auxiliary mowing disc and the ground. At the same time, two floating springs are used at the connecting rod, enabling the auxiliary mowing disc to be adjusted in real time as the ground undulates. The advantage is that when operating at the roots of crops, it can fit well with the ground, preventing weeds at the roots of crops from being missed during mowing, and at the same time avoiding excessive contact between the cutter and the soil, resulting in cutter damage.

[0047] 3. When the mower is in operation, when the auxiliary mowing disc encounters obstacles such as the roots of crops or raised soil clods, it can rotate backward through the horizontal return spring shaft to avoid the obstacles. After passing over the obstacles, it is reset by the auxiliary mowing disc return spring to restore the normal cutting width and ensure the operation efficiency. When encountering the roots of crops, the soft rubber on the outside of the auxiliary rotating disc first contacts the bark, and at the same time, the auxiliary rotating disc will rotate around the bearing seat using the rotating bearing, so as to protect the bark of the crop roots.

[0048] 4. The four support wheels are connected by pin shafts. The connection holes of the support wheels are designed with multiple hole positions and can be adjusted. Different hole positions correspond to different ground clearances of the cutter. At the same time, when adjusting the four support wheels at the same level of hole positions, the stubble height of weeds (to protect soil moisture) can be adjusted to meet the needs of different plantings.

[0049] In this application, the working principle of the adjusting rod and the upper pull rod is similar to that of the standard part flower basket screw.

[0050] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the description in the specification and drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art.

[0051] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A garden hanging electric lawn mower, characterized in that, It includes a suspension lifting system, a main mower disc, an auxiliary mower disc assembly, and an auxiliary mower disc return spring; The suspension lifting system is connected to the main mower disc through a pin shaft, and the main mower disc is connected to the auxiliary mower disc assembly through a pin shaft and the auxiliary mower disc return spring.

2. The garden hanging electric lawn mower according to claim 1, characterized in that, The main mower disc includes a main frame, on the upper part of which there is a mower disc suspension and an electrical box, several support wheels are arranged around it, and several cutter disc assemblies penetrate through the inside.

3. The garden hanging electric lawn mower according to claim 2, wherein, The cutter disc assembly includes a drive motor, a cutter holder, a cutter disc, and cutter blades that are sequentially connected from top to bottom.

4. A garden hanging electric lawn mower according to claim 1, characterized in that, The auxiliary mower disc assembly includes a horizontal return spring shaft, a bearing, an auxiliary disc flipping bracket, a connecting arm, an auxiliary mower disc, and a cutter disc assembly; The horizontal return spring shaft penetrates and connects the bearing, the auxiliary disc flipping bracket, and the connecting arm; The connecting arm is connected to the auxiliary mower disc; The cutter disc assembly is fixedly installed on the auxiliary mower disc.

5. A garden hanging electric lawn mower according to claim 4, characterized in that, At the lower part of the auxiliary mower disc, there are sequentially connected a bearing seat, a shaft sleeve, and an auxiliary rotating disc; The edge of the auxiliary rotating disc is made of rubber soft material.

6. The garden hanging electric lawn mower according to claim 1, characterized in that, The suspension lifting system includes a spherical joint bearing, an upper lifting frame, and a lower pull rod; The spherical joint bearing is connected to the upper lifting frame; The lower pull rod includes an adjusting rod, threaded connectors arranged at both ends of the adjusting rod, and locking nuts sleeved on the threaded connectors.

7. A garden hanging electric lawn mower according to claim 5, characterized in that, Between the connecting arm and the auxiliary rotating disc, there are sequentially connected a threaded pull rod, an upper pull rod, a locking nut, and a floating lower pull rod; at the same time, there is a floating spring between the connecting arm and the auxiliary rotating disc.

8. A garden hanging electric lawn mower according to claim 4, characterized in that, A bearing end cover is provided at the bottom of the bearing.

9. The garden hanging type electric lawn mower according to claim 1, characterized in that, The cutter disc assemblies provided on the main mower disc are arranged in a triangular pattern.

10. A garden hanging electric lawn mower according to claim 2, characterized in that, The number of the support wheels is 4, 2 are symmetrically arranged at the front part, and 2 are symmetrically arranged at the rear part.

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