Self-propelled mowing and flattening machine

Abstract

The utility model discloses a self-propelled mowing and flattening machine which comprises a traction machine, a mowing and flattening mechanism is installed on the traction machine, a cutting table is arranged at one end of the mowing and flattening mechanism, a shaft seat is installed on the cutting table in an embedded mode, a first shaft column and a second shaft column are arranged in the shaft seat, the bottom end of the first shaft column is connected with a gear, and the bottom end of the second shaft column is connected with a second shaft column. The top of the second shaft column is connected with a cutter, and a driving block is fixed to the top of the first shaft column. By designing the shaft seat, the spring, the first shaft column, the second shaft column, the driving block, the guide cylinder, the guide column and the movable block, when a blade of the cutter is blocked by hard objects, the blade rotates to generate load, so that the torque force generated by inclined planes of the driving block and the movable block is greater than the elastic force of the spring; and the movable block is pushed to move upwards in time under the action of the inclined surface to stop power transmission, so that the cutter is effectively prevented from being damaged due to continuous cutting when the cutter touches a hard object, and the service life of the cutter is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of lawn mowers and flatteners, specifically relating to a self-propelled lawn mower and flattener. Background Technology

[0002] A self-propelled hay cutter and flattener is a type of machinery specifically designed for harvesting forage. It is mainly used in crop farming and animal husbandry. This forage harvesting machine completes the cutting, flattening, and stripping operations in one go. It flattens and cracks the cut fresh forage stalks, which can accelerate the evaporation of internal moisture, shorten the drying time, and make the stalks, leaves, and flowers dry evenly, reducing nutrient loss and improving the quality of hay. Utility Model Content

[0003] The purpose of this invention is to provide a self-propelled lawn mower flattener to solve the problems mentioned in the background art, such as the lawn mower flattener blades not stopping cutting in time when they come into contact with hard objects, the blades of the cutter being damaged by collision, and the reduced service life of the equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-propelled lawn mower and flattener, including a tractor, on which a lawn mower and flattener mechanism is installed. One end of the lawn mower and flattener mechanism is provided with a cutting platform, and a bearing seat is embedded in the cutting platform. A first shaft column and a second shaft column are respectively provided inside the bearing seat. A gear is connected to the bottom end of the first shaft column, and a cutter is connected to the top of the second shaft column. A drive block is fixed to the top of the first shaft column, and a movable block is provided at the top end of the drive block. A guide cylinder is fixed to the surface of the movable block, and a guide post is provided inside the guide cylinder. One end of the guide post is connected to the surface of the second shaft column, and a spring is provided between the second shaft column and the movable block.

[0005] Preferably, the end face of the movable block is provided with a through hole, and a support column runs through the through hole and the interior of the spring. The support column is fixed to the surface of the second shaft column.

[0006] Preferably, the cross-section of the support column is circular, and the central axes of the support column and the movable block coincide.

[0007] Preferably, there are four guide cylinders, and the four guide cylinders are arranged in a circular array about the central axis of the movable block.

[0008] Preferably, both the guide cylinder and the guide post have circular cross-sections, and the guide cylinder and the guide post are connected by a clearance fit.

[0009] Preferably, the cross-sections of the first and second shafts are both circular, and the longitudinal sections of the first and second shafts are both convex.

[0010] Preferably, the end face of the bearing seat is provided with a spherical groove, and a ball is embedded in the spherical groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) Through the design of the bearing seat, spring, first shaft column, second shaft column, drive block, guide cylinder, guide column and movable block, the drive block and movable block are set between the cutter and the gear transmission end. With the cooperation of the guide cylinder and guide column, the movable block can rotate synchronously with the second shaft column and can also move up and down. When the grass is being cut, the power mechanism of this utility model drives the gear to rotate, and the gear drives the drive block to rotate. At this time, the spring presses down on the movable block, and the inclined surfaces of the drive block and the movable block are in contact, so that they can rotate at the same time, driving the cutter to rotate and cut grass. When the blade of the cutter is subjected to When a hard object obstructs the path, a load is generated during rotation, causing the torque force generated by the inclined plane of the drive block and the movable block to exceed the elastic force of the spring. This causes the movable block to move upward in time under the action of the inclined plane, stopping the power transmission. This effectively prevents the cutter from continuing to cut when it comes into contact with a hard object, thus preventing damage to the cutter and improving the service life of this utility model. The designed support column and through hole support the spring and correct its deviation, preventing the spring from bending excessively or losing its elasticity due to position change. The designed ball bearings provide lubrication and support, reducing the rotational friction resistance between the cutter and the end face of the shaft seat. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged view of point A in the image;

[0015] Figure 3 This is a partial structural cross-sectional view of point A of this utility model;

[0016] Figure 4 This is a perspective view of the assembly of the drive block, movable block, guide cylinder, and guide post of this utility model;

[0017] In the diagram: 1. Traction machine; 2. Grass cutting and flattening mechanism; 3. Cutter; 4. Ball bearing; 5. Shaft seat; 6. Gear; 7. Through hole; 8. First shaft column; 9. Drive block; 10. Guide cylinder; 11. Support column; 12. Cutting table; 13. Second shaft column; 14. Guide column; 15. Movable block; 16. Spring. Detailed Implementation

[0018] 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. Example

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a self-propelled lawn mower and flattener, including a tractor 1, a lawn mower and flattener mechanism 2 mounted on the tractor 1, a cutter 12 at one end of the lawn mower and flattener mechanism 2, a bearing seat 5 embedded in the cutter 12, a first shaft column 8 and a second shaft column 13 respectively disposed inside the bearing seat 5, a gear 6 connected to the bottom end of the first shaft column 8, a cutter 3 connected to the top of the second shaft column 13, a drive block 9 fixed to the top of the first shaft column 8, a movable block 15 disposed at the top end of the drive block 9, a guide cylinder 10 fixed to the surface of the movable block 15, a guide column 14 disposed inside the guide cylinder 10, one end of the guide column 14 connected to the surface of the second shaft column 13, a spring 16 disposed between the second shaft column 13 and the movable block 15, and the design of the bearing seat 5, spring 16, first shaft column 8, second shaft column 13, drive block 9, guide cylinder 10, guide column 14 and movable block 15, etc. Block 15 is used to position the drive block 9 and the movable block 15 between the cutter 3 and the transmission end of the gear 6. With the cooperation of the guide cylinder 10 and the guide column 14, the movable block 15 can rotate synchronously with the second shaft column 13 and also move up and down. When cutting grass, the power mechanism of this utility model drives the gear 6 to rotate, and the gear 6 drives the drive block 9 to rotate. At this time, the spring 16 presses down on the movable block 15, and the inclined surfaces of the drive block 9 and the movable block 15 are in contact, so that they can rotate at the same time, driving the cutter 3 to rotate and cut grass. When the blade of the cutter 3 is blocked by a hard object, the rotation is loaded, causing the torque force generated by the inclined surfaces of the drive block 9 and the movable block 15 to be greater than the elastic force of the spring 16. Under the action of the inclined surfaces, the movable block 15 is pushed up in time to stop the power transmission, effectively preventing the cutter 3 from continuing to cut when it touches a hard object and causing damage to the cutter 3, thus improving the service life of this utility model.

[0020] In this embodiment, preferably, the end face of the movable block 15 is provided with a through hole 7, and the through hole 7 and the interior of the spring 16 are connected by a support column 11. Through the designed support column 11 and through hole 7, the spring 16 is supported and corrected, so as to avoid the spring 16 from bending excessively or losing its elasticity due to position change. The support column 11 is fixed on the surface of the second shaft column 13. The cross-section of the support column 11 is a circular structure, and the central axes of the support column 11 and the movable block 15 coincide with each other.

[0021] In this embodiment, preferably, there are four guide cylinders 10, and the four guide cylinders 10 are arranged in a circular array about the central axis of the movable block 15. The cross-sections of the guide cylinders 10 and the guide posts 14 are both circular structures, and the guide cylinders 10 and the guide posts 14 are connected by a clearance fit. The cross-sections of the first shaft post 8 and the second shaft post 13 are both circular structures, and the longitudinal sections of the first shaft post 8 and the second shaft post 13 are both convex structures. The end face of the shaft seat 5 is provided with a spherical groove, and the spherical groove is inlaid with balls 4. The designed balls 4 play a lubricating and supporting role, reducing the influence of rotational friction resistance between the cutter 3 and the end face of the shaft seat 5.

[0022] The working principle and usage of this utility model are as follows: This utility model places the drive block 9 and the movable block 15 between the cutter 3 and the transmission end of the gear 6. With the cooperation of the guide cylinder 10 and the guide post 14, the movable block 15 can rotate synchronously with the second shaft post 13 and also move up and down. During mowing, the power mechanism of this utility model drives the gear 6 to rotate, which in turn drives the drive block 9 to rotate. At this time, the spring 16 presses down on the movable block 15, causing the inclined surfaces of the drive block 9 and the movable block 15 to fit together, enabling them to rotate simultaneously. This drives the cutter 3 to rotate and cut the grass. When the blade of the cutter 3 is obstructed by a hard object... When the rotation generates a load, the torque force generated by the inclined plane of the drive block 9 and the movable block 15 is greater than the elastic force of the spring 16. Under the action of the inclined plane, the movable block 15 is pushed upward in time to stop the power transmission. This effectively prevents the cutter 3 from continuing to cut when it touches a hard object, thus avoiding damage to the cutter 3 and improving the service life of this utility model. The cutter 3 cuts the grass, and the grass enters the grass cutting and flattening mechanism 2. The internal double rollers flatten and crack the cut fresh grass stems, which can accelerate the evaporation of internal moisture, shorten the drying time, and make the stems, leaves and flowers dry evenly, reduce nutrient loss and improve the quality of hay.

[0023] 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 self-propelled mower-roller, comprising a tractor (1), a mower-roller mechanism (2) is installed on the tractor (1), one end of the mower-roller mechanism (2) is provided with a cutting table (12), characterized in that: The cutting platform (12) is embedded with an axle seat (5), the inner part of the axle seat (5) is respectively provided with a first axle column (8) and a second axle column (13), the bottom end of the first axle column (8) is connected with a gear (6), the top of the second axle column (13) is connected with a cutter (3), the top of the first axle column (8) is fixed with a driving block (9), the top end of the driving block (9) is provided with a movable block (15), the surface of the movable block (15) is fixed with a guide cylinder (10), the inside of the guide cylinder (10) is provided with a guide column (14), one end of the guide column (14) is connected on the surface of the second axle column (13), the second axle column (13) and the movable block (15) are provided with a spring (16) therebetween.

2. Self-propelled forage crop crop press according to claim 1, characterized in that: The end face of the movable block (15) is provided with a through hole (7), the through hole (7) and the inside of the spring (16) are penetrated with a supporting column (11) in common, the supporting column (11) is fixed on the surface of the second axle column (13).

3. Self-propelled forage crop crop press according to claim 2, characterized in that: The cross section of the supporting column (11) is circular structure, and the central axes of the supporting column (11) and the movable block (15) coincide with each other.

4. The self-propelled forage crop crop press of claim 1, wherein: The guide cylinder (10) is four, and the four guide cylinders (10) are circular arrayed about the central axis of the movable block (15).

5. The self-propelled forage crop crop press of claim 1, wherein: The cross sections of the guide cylinder (10) and the guide column (14) are circular structure, and the guide cylinder (10) and the guide column (14) are connected through gap fit.

6. The self-propelled forage crop crop press of claim 1 wherein: The cross sections of the first axle column (8) and the second axle column (13) are circular structure, and the longitudinal sections of the first axle column (8) and the second axle column (13) are convex letter type structure.

7. The self-propelled forage crop crop press of claim 1 wherein: The end face of the axle seat (5) is provided with a spherical groove, and the spherical groove is embedded with a ball (4).

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