Self-adaptive elastic hook for crawler-type grass thinning equipment

Abstract

The invention provides a self-adaptive elastic hook for crawler-type grass thinning equipment, which comprises a first fixing spring, a traction spring, a force storage spring, a working spring and a second fixing spring which are integrally formed and sequentially connected, the outer diameter of the force storage spring is gradually increased from the traction spring side to the working spring side, and the outer diameter of the force storage spring is gradually increased from the traction spring side to the working spring side. The path curve of the working spring comprises a large-diameter circular arc, a plurality of triangular recesses, a semicircular circular arc and a linear section, and the triangular recesses form a sawtooth structure for clamping an aquatic plant stem when the aquatic plant is lifted upwards; the device has the following beneficial effects that the problems that in the grass thinning process, aquatic plants are prone to sliding when pulled upwards, grass is prone to adhesion when pulled downwards, the device is prone to damage when encountering foreign matter, a force application structure is prone to damage, and the hook density cannot be adjusted can be effectively solved, and the hook density can be dynamically adjusted to cope with scenes with different operation intensities; and high efficiency and low manual participation degree in the grass thinning process are realized, so that popularization and use are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of aquatic weed combing devices, and in particular to an adaptive elastic hook for a crawler-type weed combing device. Background Art

[0002] Aquatic plants are an important part of river crab farming and waterscape, but overly dense aquatic plants are easy to rot and hinder the dissolution of oxygen in the water, which in turn leads to deterioration of water quality. With the scientific and mechanized application of modern aquaculture and ecology, the mechanized salvage of aquatic plants is becoming more and more important, and the application of aquatic plant combing equipment is becoming more and more popular. The adaptive elastic hook is an important part of aquatic plant combing equipment. The aquatic plants need to go through three stages from being combed from the water to the grass falling position. The elastic hook hooks the aquatic plants out of the water, the aquatic plants are hung on the elastic hooks and move to the grass falling position with the tracks, and the aquatic plants are separated from the hooks by gravity. The design of the elastic hook involves issues such as aquatic plant processing efficiency, manual workload and adaptability of the work object. Therefore, the performance of the elastic hook is of great significance in the field of aquatic plant combing.

[0003] The traditional elastic hook has the following main problems in use: (1) The water grass is easy to slide when pulled up, and the efficiency of pulling up the grass is low; (2) The water grass sticks to the hook, and manual cleaning increases the workload; (3) It is easy to be damaged when accidentally encountering foreign objects or hitting the shore, increasing the cost of replacement and equipment; (4) The hook force is small and cannot be adjusted, and it cannot cope with high-intensity work; (5) When forced to perform high-intensity work, the amount of wear and tear is large, and the loss is high; (6) The hook density is fixed, and the upper limit of the hook pulling force per unit area cannot be adjusted. Therefore, there is an urgent need for an adaptive elastic hook that can solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the object of the present invention is to provide an adaptive elastic hook for a crawler-type grass grooming equipment, which is used to solve the problems in the prior art such as the water grass is easy to slide when pulled up, the grass below is easy to stick, it is easy to be damaged when encountering foreign objects, the force application structure is easy to be damaged, and the hook density cannot be adjusted.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present invention provides the following technical solutions:

[0006] An adaptive elastic hook for a crawler-type grass-grooming device comprises an integrally formed first fixed spring, a traction spring, a force storage spring, a working spring and a second fixed spring, wherein the first fixed spring, the traction spring, the force storage spring, the working spring and the second fixed spring are sequentially connected, wherein the outer diameter of the force storage spring gradually increases from the traction spring side to the working spring side, and the path curve of the working spring comprises a large-diameter arc, a plurality of triangular depressions, a semicircular arc and a straight line segment, and the plurality of triangular depressions form a serrated structure for clamping the stems of aquatic plants when the aquatic plants are pulled upward.

[0007] In the above technical scheme, the gradually increasing outer diameter of the force storage spring can provide stronger structural strength and rigidity, increase the lateral support area when subjected to force, and reduce the distortion caused by lateral loads; the large-diameter arc on the working spring can increase the angle between the working spring and the traction spring in the axial perspective, thereby preventing the water plants from being clamped between the working spring and the traction spring when falling, reducing the difficulty of falling grass and increasing the automatic falling rate of the water plants; the serrated structure on the working spring can increase the angle between the pulling direction of the water plants and the movement direction of the working spring, so that the water plants are stuck in the serrated depression, thereby solving the problem of the water plants slipping during the pulling process.

[0008] In one embodiment of the present invention, the first fixed spring, the traction spring, the force storage spring, the working spring and the second fixed spring are made by bending a single stainless steel wire, and the diameter of the stainless steel wire is 1.5 mm.

[0009] In one embodiment of the present invention, the traction spring includes a first connecting rod, a second connecting rod and a capsule-shaped ring connected to the first connecting rod and the second connecting rod, the end of the first connecting rod away from the capsule-shaped ring is connected to the first fixed spring, and the end of the second connecting rod away from the capsule-shaped ring is connected to the storage spring.

[0010] In one embodiment of the present invention, the outer diameter of the force storage spring is slightly larger than the outer diameters of the first fixed spring and the second fixed spring, and the pitch of the force storage spring is much smaller than the pitch of the first fixed spring and the second fixed spring; the force storage spring in this technical solution provides force support for the working spring, so that the angle of the working spring changes with the magnitude of the force; the outer diameter of the force storage spring is slightly larger than the outer diameters of the first fixed spring and the second fixed spring, in order to provide stronger structural strength and rigidity, increase the lateral support area when subjected to force, and reduce the distortion caused by lateral loads.

[0011] In one embodiment of the present invention, the first fixed spring, the force storage spring and the second fixed spring in one of the elastic hooks are all mounted on the same support rod in the crawler-type grass-grooming equipment, and the capsule-shaped ring of the traction spring in the elastic hook is mounted on the previous support rod in the crawler-type grass-grooming equipment.

[0012] In one embodiment of the present invention, a plurality of sleeves are also mounted on the support rod, and the sleeves are located between the elastic hooks, and the elastic hooks and sleeves are evenly spaced on the support rod along the length direction of the support rod; this technical solution can change the density of the elastic hooks per unit area by changing the number and length of the sleeves through the spaced arrangement of the elastic hooks and the sleeves, thereby adjusting the tension of the elastic hook array without changing the hook structure.

[0013] As described above, the adaptive elastic hook for crawler-type grass-grooming equipment of the present invention has the following beneficial effects:

[0014] (1) The sawtooth structure on the working spring of the present invention can increase the angle between the pulling direction of the waterweed and the moving direction of the working spring, so that the waterweed is stuck in the sawtooth depression, thereby solving the problem of waterweed sliding off during the pulling process and improving the efficiency of pulling the waterweed.

[0015] (2) The large-diameter arc track on the working spring can increase the angle between the working spring and the traction spring in the axial perspective, preventing the water grass from being caught between the working spring and the traction spring when falling, reducing the difficulty of falling grass and improving the automatic falling rate of water grass;

[0016] (3) When the force storage spring with a gradually changing outer diameter hits a foreign object or the shore, the force storage spring will twist and deform and release the foreign object, thereby avoiding direct breakage due to excessive force when hitting a rigid structure, thereby ensuring the service life of the elastic hook;

[0017] (4) The gradually increasing outer diameter of the force storage spring can provide stronger structural strength and rigidity, increase the lateral support area when subjected to force, and reduce the distortion caused by the lateral load. The number of turns of the force storage spring varies according to the tension required for grass grooming, so as to adapt to increasing the effective working range of the elastic hook;

[0018] (5) By changing the torsional deformation of the force storage spring, the deflection angle of the working spring is changed, thereby changing the pulling force of the elastic hook, adapting to the working environment with different mechanical requirements, and abandoning the operation when encountering extreme working conditions, protecting the integrity of the elastic hook and avoiding failure of the elastic hook structure;

[0019] (6) By arranging the elastic hooks and sleeves at intervals, the density of the elastic hooks per unit area can be changed by changing the number and length of the sleeves, thereby adjusting the tension of the elastic hook array without changing the hook structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a right front perspective schematic diagram of an adaptive elastic hook for a crawler-type grass grooming device disclosed in the present invention;

[0021] Figure 2 It is a right side schematic diagram of the adaptive elastic hook for the crawler-type grass grooming equipment disclosed in the present invention;

[0022] Figure 3 It is a front view schematic diagram of the adaptive elastic hook for the crawler-type grass grooming equipment disclosed in the present invention;

[0023] Figure 4 It is a schematic diagram showing that an elastic hook in an adaptive elastic hook for a crawler-type grass grooming device disclosed in the present invention is sleeved on a support rod;

[0024] Figure 5 It is a schematic diagram showing that a plurality of elastic hooks and sleeves in the adaptive elastic hook for the crawler-type grass grooming equipment disclosed in the present invention are sleeved on a support rod.

[0025] Component number description

[0026] 1. Elastic hook; 11. First fixed spring; 12. Traction spring; 121. First connecting rod; 122. Second connecting rod; 123. Capsule-shaped ring; 13. Power storage spring; 14. Working spring; 141. Large diameter arc; 142. Triangular depression; 143. Semicircular arc; 144. Straight line segment; 15. Second fixed spring; 2. Support rod; 3. Sleeve. DETAILED DESCRIPTION

[0027] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0028] See also Figures 1 to 5 The present invention provides an adaptive elastic hook for a crawler-type grass grooming device, comprising an integrally formed first fixed spring 11, a traction spring 12, a force storage spring 13, a working spring 14, and a second fixed spring 15, wherein the first fixed spring 11, the traction spring 12, the force storage spring 13, the working spring 14, and the second fixed spring 15 are sequentially connected, and the first fixed spring 11, the traction spring 12, the force storage spring 13, the working spring 14, and the second fixed spring 15 are formed by bending a single stainless steel wire with a diameter of 1.5 mm, and the curves are smooth and continuous with each other;

[0029] Depend on Figures 1 to 3 It can be known that the traction spring 12 includes a first connecting rod 121, a second connecting rod 122 and a capsule-shaped ring 123 connected to the first connecting rod 121 and the second connecting rod 122. The end of the first connecting rod 121 away from the capsule-shaped ring 123 is connected to the first fixed spring 11, and the end of the second connecting rod 122 away from the capsule-shaped ring 123 is connected to the storage spring 13; it should be noted that the previous support rod 2 in the track motion trajectory is strung in the capsule-shaped ring 123 to limit the radial rotational freedom of the elastic hook 1. The width of the capsule-shaped ring 123 is slightly larger than the diameter of the support rod 2, and the length of the capsule-shaped ring 123 is about 2.5 times the width. The elastic hook 1 can make a small movement during the track motion process as the spacing between the support rods 2 changes, which meets the normal operation of the track under the change of the spacing between the support rods 2 at the rotating shaft;

[0030] The force storage spring 13 provides force support for the working spring 14, so that the angle of the working spring 14 changes with the magnitude of the force; the outer diameter of the force storage spring 13 is slightly larger than the outer diameters of the first fixed spring 11 and the second fixed spring 15, so as to provide stronger structural strength and rigidity, increase the lateral support area when subjected to force, and reduce the distortion caused by the lateral load; the pitch of the force storage spring 13 is much smaller than the pitch of the first fixed spring 11 and the second fixed spring 15, and the outer diameter of the force storage spring 13 gradually increases from the traction spring 12 side to the working spring 14 side, reducing the local stress on the side close to the working spring 14, increasing the bearing capacity and improving the rigidity; and the number of turns of the force storage spring 13 can be appropriately increased or decreased according to the working object to adapt to different working environments; the deflection angle of the working spring 14 is changed by the torsional deformation of the force storage spring 13, thereby changing the upper grass pulling force of the elastic hook 1, adapting to the working environment with different mechanical requirements, abandoning the current operation when encountering extreme working conditions, and protecting the elastic hook 1 intact;

[0031] The path curve of the working spring 14 includes a large diameter arc 141, a plurality of triangular recesses 142, a semicircular arc 143 and a straight line segment 144. The plurality of triangular recesses 142 form a sawtooth structure for clamping the stems of the water plants when the water plants are pulled upward. In the present embodiment, there are three triangular recesses 142 on the working spring 14. It should be noted that the large diameter arc 141 increases the angle between the working spring 14 and the traction spring 12 in the axial perspective, thereby preventing the water plants from being clamped between the working spring 14 and the traction spring 12 when falling, thereby reducing the difficulty of falling grass and improving the automatic falling rate of the water plants. The sawtooth structure formed by the three triangular recesses 142 increases the angle between the pulling direction of the water plants and the movement direction of the working spring 14, thereby preventing the water plants from slipping during the pulling process, and thereby helping to improve the efficiency of placing the grass.

[0032] Depend on Figures 4 to 5 It can be seen that the first fixed spring 11, the force storage spring 13 and the second fixed spring 15 in an elastic hook 1 are all mounted on the same support rod 2 in the crawler-type grass-grooming device, and the capsule-shaped ring 123 of the traction spring 12 in the elastic hook 1 is mounted on the previous support rod 2 in the crawler-type grass-grooming device; the support rod 2 is also mounted with a plurality of sleeves 3, the sleeves 3 are located between the elastic hooks 1, and the elastic hooks 1 and the sleeves 3 are evenly spaced and mounted on the support rod 2 along the length direction of the support rod 2, wherein the crawler-type grass-grooming device includes a grass-grooming device body, a crawler mounted on the grass-grooming device body, and a plurality of support rods 2 mounted on the crawler;

[0033] It should be noted that the first fixed spring 11 and the second fixed spring 15 fix the elastic hook 1 on the support rod 2, and the elastic hook 1 and the sleeve 3 are arranged at intervals. The density of the elastic hook 1 per unit area can be changed by changing the number and length of the sleeve 3, so as to adjust the tension of the elastic hook 1 array without changing the structure of the elastic hook 1; the fixed springs on both sides are shorter in length, and in cooperation with different numbers of sleeves 3, the number of elastic hooks on a single support rod 2 can be changed, thereby adapting to work scenarios with different working intensities.

[0034] Specifically, the working process of the adaptive elastic hook is as follows: the two support rods 2 pass through the first fixed spring 11, the force storage spring 13, the second fixed spring 15 and the traction spring 12 respectively, and the adaptive elastic hook 1 is combined to form the crawler of the grass grooming equipment. As the crawler rotates, the elastic hook 1 is driven to move, and at the same time, the working spring 14 moves up to hook the water grass in the water, which can not only break the water grass but also provide the power for the hull to move forward to a certain extent. The stems of the water grass pull each other to cooperate with the subsequent upward movement of the elastic hook 1 to pull out the water grass as a whole and cover the surface of the elastic hook 1; after the water grass on the adaptive elastic hook 1 rotates to the back of the crawler, the water grass on the working spring 14 falls due to gravity, detaches from the elastic hook 1 and falls into the hull, realizing the water grass combing work;

[0035] The working principle of the adaptive elastic hook is as follows: the first fixing spring 11, the force storage spring 13 and the second fixing spring 15 are passed through the support rod 2, and the previous support rod 2 in the direction of track rotation passes through the capsule-shaped ring 123 of the traction spring 12 to fix the elastic hook 1 on the support rod 2. The rotation of the track drives the support rod 2 and the elastic hook 1 thereon to rotate together; the working spring 14 rotates and moves upward, pulling up the water plants in the water, and the stems of the water plants are stuck in the three triangular depressions 142 to prevent the water plants from being pulled back into the water by the remaining parts in the water when the elastic hook 1 moves, resulting in failure of weeding; if there is dense water plants with large mass, the working spring 14 will drive the force storage spring 13 to twist, providing a larger The supporting force supports the working spring 14 to pull up the dense aquatic plants; if the aquatic plants are too dense or encounter a hard and heavy object, the working spring 14 rotates to the maximum angle, that is, the maximum supporting force provided by the storage spring 13 is still not enough to pull up the target object, and the target object will slide off the working spring 14, which is regarded as giving up the operation; the traction spring 12 is arranged in an array to form a track plane to support and move the aquatic plants, thereby realizing the transfer of the aquatic plants from the water to the grass falling position; the large diameter arc 141 of the working spring 14 increases the angle between the working spring 14 and the traction spring 12 in the axial perspective, thereby preventing the aquatic plants from being sandwiched between the working spring 14 and the traction spring 12 when falling, thereby improving the automatic falling rate of the aquatic plants.

[0036] In summary, the sawtooth structure on the working spring 14 in the present invention can increase the angle between the pulling direction of the water grass and the moving direction of the working spring 14, so that the water grass is stuck in the sawtooth depression, solves the problem of water grass sliding during the pulling process, and improves the efficiency of grass placement; the large-diameter arc 141 trajectory on the working spring 14 can increase the angle between the working spring 14 and the traction spring 12 in the axial perspective, and prevents the water grass from being clamped between the working spring 14 and the traction spring 12 when falling, reduces the difficulty of grass falling, and improves the automatic falling rate of water grass; through the force storage spring 13 with a gradually changing outer diameter, when it encounters foreign objects or the shore, the force storage spring 13 will twist and deform, and release the foreign objects, thereby avoiding direct breakage due to excessive force when encountering a rigid structure, and ensuring the service life of the elastic hook 1;

[0037] The gradually increasing outer diameter of the force storage spring 13 can provide stronger structural strength and rigidity, increase the lateral support area when subjected to force, and reduce the distortion caused by lateral loads. The number of turns of the force storage spring 13 changes according to the tension required for grass grooming, so as to adapt to increasing the effective working range of the elastic hook 1; the deflection angle of the working spring 14 is changed by the torsional deformation of the force storage spring 13, thereby changing the grass-engaging tension of the elastic hook 1, and adapting to the working environment with different mechanical requirements. When encountering extreme working conditions, the operation is abandoned to protect the integrity of the elastic hook 1 and avoid structural failure of the elastic hook 1; through the spacing arrangement of the elastic hook 1 and the sleeve 3, the density of the elastic hook 1 per unit area can be changed by changing the number and length of the sleeve 3, so as to adjust the tension of the elastic hook 1 array without changing the hook structure.

[0038] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An adaptive elastic hook for a crawler-type grass grooming device, characterized in that: The invention comprises an integrally formed first fixed spring (11), a traction spring (12), a force storage spring (13), a working spring (14) and a second fixed spring (15); the first fixed spring (11), the traction spring (12), the force storage spring (13), the working spring (14) and the second fixed spring (15) are connected in sequence; the outer diameter of the force storage spring (13) gradually increases from the traction spring (12) side to the working spring (14) side; the path curve of the working spring (14) comprises a large diameter arc (141), a plurality of triangular recesses (142), a semicircular arc (143) and a straight line segment (144); the plurality of triangular recesses (142) form a sawtooth structure for clamping the stem of the waterweed when the waterweed is pulled upward.

2. The adaptive elastic hook for crawler-type grass-grooming equipment according to claim 1, characterized in that: The first fixed spring (11), the traction spring (12), the force storage spring (13), the working spring (14) and the second fixed spring (15) are made by bending a single stainless steel wire, and the diameter of the stainless steel wire is 1.5 mm.

3. The adaptive elastic hook for crawler-type grass grooming equipment according to claim 1, characterized in that: The traction spring (12) comprises a first connecting rod (121), a second connecting rod (122) and a capsule-shaped ring (123) connected to the first connecting rod (121) and the second connecting rod (122); the end of the first connecting rod (121) away from the capsule-shaped ring (123) is connected to the first fixed spring (11); and the end of the second connecting rod (122) away from the capsule-shaped ring (123) is connected to the force storage spring (13).

4. The adaptive elastic hook for a crawler-type grass grooming device according to claim 1, characterized in that: The outer diameter of the force storage spring (13) is slightly larger than the outer diameters of the first fixed spring (11) and the second fixed spring (15), and the pitch of the force storage spring (13) is much smaller than the pitch of the first fixed spring (11) and the second fixed spring (15).

5. The adaptive elastic hook for crawler-type grass grooming equipment according to claim 1, characterized in that: The first fixed spring (11), the force storage spring (13) and the second fixed spring (15) in one of the elastic hooks (1) are all mounted on the same support rod (2) in the crawler-type grass-grooming device, and the capsule-shaped ring (123) on the traction spring (12) in the elastic hook (1) is mounted on the previous support rod (2) in the crawler-type grass-grooming device.

6. The adaptive elastic hook for a crawler-type grass-grooming device according to claim 5, characterized in that: The support rod (2) is also provided with a plurality of sleeves (3), the sleeves (3) are located between the elastic hooks (1), and the elastic hooks (1) and the sleeves (3) are evenly spaced and mounted on the support rod (2) along the length direction of the support rod (2).

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