Paddy field wheel device

Abstract

The application belongs to the technical field of agricultural production machinery, and particularly discloses a paddy field wheel device, which comprises a transmission shaft connected with a driving structure of a rotary cultivator; a plurality of wheel discs are uniformly and interval installed on the transmission shaft along the length direction of the transmission shaft; the wheel disc edges are uniformly and interval provided with installation grooves matched with the louver blades along the circumferential direction; the installation grooves are provided with A end faces and B end faces abutting against the two sides of the louver blades; each group of louver blades comprises a first louver blade and a second louver blade; the radii of the wheel discs of the adjacent two installation grooves gradually increase from the A end face of the installation groove to the B end face of the next installation groove, so that the A end face height is matched with the first louver blade height, and the B end face extends to the second louver blade; the louver blades are exposed to the installation grooves; and the louver blades are welded and fixed in the wheel discs along the circumferential direction of the two sides of the installation grooves. The louver blades are not easy to be loose after being welded through the clamping of the louver blades and the installation grooves and the shape combination, and the combination structure of the louver blades and the wheel discs is stable.

Description

Technical Field

[0001] This invention belongs to the field of agricultural production machinery technology, and specifically relates to a paddy field wheel device. Background Technology

[0002] The paddy field wheel of a rotary tiller is one of the key components used for harrowing rice paddies during farming. During harrowing, the blades of the paddy field wheel agitate the soil and water into a slurry. Existing paddy field wheels have the following problems:

[0003] 1. The grid plates are generally fixed to the wheel disc of the paddy field wheel with bolts. The grid plates work in nutrient-rich water, and the bolts are prone to rust, causing the grid plates to loosen and resulting in poor structural stability.

[0004] 2. The paddy field wheel vibrates greatly during operation, and the bolts are easy to loosen, resulting in poor structural stability. Summary of the Invention

[0005] The purpose of this invention is to provide a paddy field wheel device, which, by installing the grid plates in the mounting groove and then welding them, makes the grid plates less prone to loosening and ensures a stable combination structure between the grid plates and the wheel disc of the paddy field wheel.

[0006] The objective of this invention is achieved through the following technical solution: a paddy field wheel device, comprising:

[0007] The drive shaft is connected to the drive structure of the rotary tiller;

[0008] Multiple sets of discs are evenly spaced along the length of the drive shaft; and

[0009] Multiple sets of grid plates, each set including a first grid plate and a second grid plate, are provided with mounting grooves that mate with the grid plates at even intervals along the circumference of the wheel edge; the mounting grooves have an A end face and a B end face that abut against the two sides of the grid plate; the wheel radius of two adjacent mounting grooves gradually increases from the A end face of the mounting groove to the B end face of the next mounting groove, so that the length of the A end face matches the height of the first grid plate, and the B end face extends to the second grid plate; the grid plates are exposed outside the mounting grooves; the grid plates are fixed to the wheel by welding along the circumference of both sides of the mounting groove.

[0010] Preferably, the first grid plate and the second grid plate are integrally formed and combined at an obtuse angle, with a rounded transition at the joint between the first grid plate and the second grid plate.

[0011] Preferably, steps are provided at the bottom of the two sides of the first grid plate, and the inner wall of the step abuts against the inner wall of the mounting groove.

[0012] Preferably, the first grid plate has a first boss facing end A, and the mounting groove has a first groove on end A that mates with the first boss. The second grid plate has a second boss facing end B, and the mounting groove has a second groove on end B that mates with the second boss.

[0013] Preferably, a first welding groove is provided on the surface of the grid plate, and the first welding groove is spaced apart along the width direction of the grid plate; a second welding groove is provided on the wheel, and the second welding groove is spaced apart along the mounting groove.

[0014] Preferably, the first welding groove and the second welding groove are staggered.

[0015] Preferably, the grid plates of multiple sets of discs are installed in an alternating manner.

[0016] Preferably, each set of discs has multiple hollowed-out grooves along its circumference.

[0017] Preferably, it also includes a mudguard assembly, which includes a front mudguard, a rear mudguard, and side mudguards; the front mudguard is installed at the front end of the rotary tiller and above the wheel; the rear mudguard is installed at the rear end of the rotary tiller and behind the wheel; the side mudguards are fixedly installed on the rotary tiller and located on both sides of the wheel.

[0018] Preferably, the rear mudguard includes a main mudguard, an extended mudguard, and an elastic element. The main mudguard is provided with a first fixing block and a first hanging ear. The extended mudguard is provided with a second fixing block and a second hanging ear that mates with the first fixing block. The first fixing block and the second fixing block are hinged by a pin. One end of the elastic element is connected to the first hanging ear, and the other end of the elastic element is connected to the second hanging ear.

[0019] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0020] The aforementioned paddy field wheel device is provided with multiple sets of wheel discs and multiple sets of grid plates. The wheel discs have mounting grooves evenly spaced along their circumference. The radius of the wheel discs matches the shape of the mounting grooves and the grid plates. The grid plates are installed in the mounting grooves, which provide positioning for the grid plates, increase the assembly area with the grid plates, thereby increasing the welding area, making the welded structure stable after welding, and preventing the grid plates from falling off. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the structure of a paddy field wheel device according to the present invention;

[0023] Figure 2 This is an enlarged view of point A, showing the front view of the wheel and grid plates;

[0024] Figure 3 This is a schematic diagram of the back of the wheel and the grid plates;

[0025] Figure 4 This is a schematic diagram of the back of the mudguard assembly;

[0026] Figure 5 This is a side view of the mudguard assembly.

[0027] Figure label:

[0028] 1-Drive shaft, 2-Disc, 21-Mounting groove, 211-End face A, 212-End face B, 213-First groove, 214-Second groove, 22-Second welding groove, 23-Hollow groove, 3-Grid plate, 31-First grid plate, 311-First boss, 32-Second grid plate, 321-Second boss, 33-First welding groove, 34-Step, 4-Drive structure. 5-Mudguard assembly, 51-Front mudguard, 52-Rear mudguard, 521-Main mudguard, 522-Extended mudguard, 523-Elastic element, 524-First fixing block, 525-First hanging lug, 526-Second fixing block, 527-Second hanging lug, 53-Side mudguard, 54-Mounting linkage, 55-Pressure spring. Detailed Implementation

[0029] Please see Figure 1 , Figure 2 and Figure 3 A paddy field wheel device includes: a drive shaft 1, multiple sets of wheel discs 2 and multiple sets of grid plates 3.

[0030] The drive shaft 1 is connected to the drive structure 4 of the rotary tiller; multiple sets of discs 2 are evenly spaced along the length of the drive shaft 1. Each set of grates 3 includes a first grate 31 and a second grate 32. The edge of the disc 2 is evenly spaced along its circumference with mounting grooves 21 that mate with the grates 3. The mounting groove 21 has an A end face 211 and a B end face 212 that abut against both sides of the grates 3. The radius of the disc 2 in two adjacent mounting grooves 21 gradually increases from the A end face 211 of the mounting groove 21 to the B end face 212 of the next mounting groove 21, so that the length of the A end face 211 matches the height of the first grate 31, and the B end face 212 extends to the second grate 32. The grates 3 are exposed in the mounting groove 21. The grates 3 are welded and fixed to the disc 2 along both sides of the mounting groove 21. Specifically, the drive structure 4 adopts the existing drive technology of rotary tillers to drive the drive shaft 1 to rotate. Six discs 2 are provided, and are evenly spaced and fixed in the drive shaft 1 by welding or fixed bearings. The discs 2 rotate with the drive shaft 1. The discs 2 are evenly divided into equal parts according to the number of grid plates 3. The radius of each disc 2 is different, gradually increasing from the A end face 211 of the mounting groove 21 to the B end face 212 of the next mounting groove 21. Preferably, the length of the A end face 211 is slightly higher than the height of the first grid plate 31, and the B end face 212 extends to the second grid plate 32 and exceeds half the width of the second grid plate 32. The grid plates 3 are exposed outside the mounting groove 21.

[0031] In the paddy field wheel device of this invention, the wheel disc 2 has mounting grooves 21 evenly spaced along its circumference. The radius of the wheel disc 2 varies with the shape of the mounting grooves 21 and the grid plate 3 after assembly. This replaces the fixed radius of the conventional paddy field wheel disc, and also replaces the conventional installation of the grid plate by bolts, or the method of welding the grid plate directly to the wheel disc or welding the grid plate after it is installed in a regular groove. This makes the mounting groove 21 not only provide positioning for the grid plate 3 and play a snap-fit ​​role, but also the height of the B end face 212 is greater than the height of the A end face 211, which increases the snap-fit ​​area and welding area with the grid plate 3, thereby ensuring the stability of the snap-fit ​​structure and the structure after welding, and the grid plate 3 is not easy to fall off.

[0032] Please see Figure 2 and Figure 3 Furthermore, the first grid plate 31 and the second grid plate 32 are integrally formed and joined at an obtuse angle, with a rounded transition at the joint. Preferably, the first grid plate 31 and the second grid plate 32 are of equal material and size. The integral formation of the first grid plate 31 and the second grid plate 32 saves assembly time and allows for production using the same mold, resulting in lower costs and improved strength of the grid plate 3 to some extent. The rounded transition at the joint of the first grid plate 31 and the second grid plate 32 distributes stress across the first grid plate 31 and the second grid plate 32 during harrowing, thereby reducing stress concentration and deformation or cracking, and extending the lifespan of the grid plate 3.

[0033] Please see Figure 3 Furthermore, steps 34 are provided at the bottom of both sides of the first grid plate 31, and the inner wall of the step 34 abuts against the inner wall of the mounting groove 21. Specifically, the length of the step 34 is greater than the thickness of the wheel 2, so that one side of the grid plate 3 is exposed on the wheel 2. And the grid plate 3 is installed between the two wheel 2s, and the step 34 plays a limiting role, so the grid plate 3 will not move along its length direction, thus improving the structural stability after welding.

[0034] Please see Figure 2 and Figure 3Furthermore, the first grid plate 31 has a first boss 311 facing the A end face 211, and the mounting groove 21 has a first groove 213 on the A end face 211 that mates with the first boss 311. The second grid plate 32 has a second boss 321 facing the B end face 212, and the mounting groove 21 has a second groove 214 on the B end face 212 that mates with the second boss 321. Preferably, the first boss 311 is provided near its edge facing the A end face 211, and the second boss 321 is provided near its edge facing the B end face 212. The distances between the first boss 311 and the second boss 321 and the edge of the grid plate 3 are equal. Corresponding first grooves 213 and second grooves 214 are provided in the mounting groove 21 of the wheel 2. The center plane of the width of the first groove 213 and the second groove 214 coincides with the center plane of the thickness of the wheel 2. With this structure, the grid plate 3 will not shift relative to the mounting groove 21 during installation, ensuring accurate positioning. During welding, the grid plate 3 will also not shift relative to the mounting groove 21, improving welding quality. During the harrowing process, the grid plate 3 will not be vibrated and will not shift relative to the wheel 2, ensuring structural stability.

[0035] Please see Figure 2 and Figure 3 Furthermore, to increase and thicken the welding area and improve welding quality, even if the weld layer surface is oxidized and rusted after welding, the weld layer is thick enough that it will not affect the structural stability of the grid plate 3 and the wheel disk 2 within its service life. A first welding groove 33 is provided on the surface of the grid plate 3, spaced apart along the width direction of the grid plate 3; a second welding groove 22 is provided on the wheel disk 2, spaced apart circumferentially along the mounting groove 21. Preferably, the first welding groove 33 and the second welding groove 22 are staggered. A set of second welding grooves 22 is provided on both the front and back sides of the wheel disk 2, and correspondingly, a set of first welding grooves 33 is provided on both the front and back sides of the grid plate 3.

[0036] Please see Figure 1 Furthermore, the grid plates 3 of the multiple sets of wheel discs 2 are installed in an alternating manner. Specifically, each set of wheel discs 2 has five sets of grid plates 3, which are evenly installed on the wheel disc 2, dividing the wheel disc 2 into five equal parts. The staggered structure allows for fine tillage and a level farmland during plowing and harrowing.

[0037] Please see Figure 1 Furthermore, each set of rotary tillers 2 has multiple perforated grooves 23 along its circumference. Specifically, the perforated grooves 23 are evenly spaced in the rotary tiller 2, and the shapes of the perforated grooves 23 include, but are not limited to, circles, ellipses, etc., with the centers of the perforated grooves 23 on the same circumference. This structure reduces the weight of the rotary tiller 2, which not only reduces the drive consumption of the rotary tiller but also reduces the compaction of the farmland foundation, thus protecting the foundation.

[0038] The aforementioned paddy field wheel device includes multiple sets of wheel discs 2 and multiple sets of grid plates 3. The wheel discs 2 have evenly spaced mounting grooves 21 along their circumference. Each mounting groove 21 has a second welding groove 22, a first groove 213, and a second groove 214. The radius of the wheel discs 2 matches the shape of the mounting grooves 21 and the grid plates 3 during assembly. Each grid plate 3 has a corresponding step 34, a first boss 311, and a second boss 321. The grid plates 3 are snapped into the mounting grooves 21, which provide positioning for the grid plates 3. The mounting grooves 21 increase the assembly area with the grid plates 3, thereby increasing the welding area and ensuring a stable welded structure. Even if the weld surface rusts or the paddy field wheel vibrates during operation, the grid plates 3 are less likely to detach.

[0039] Furthermore, the paddy field wheel device also includes a mudguard assembly 5, which includes a front mudguard 51, a rear mudguard 52, and side mudguards 53. The front mudguard 51 is installed at the front end of the rotary tiller, above the wheel disc 2; the rear mudguard 52 is installed at the rear end of the rotary tiller, behind the wheel disc 2; and the side mudguards 53 are fixedly installed on the drive structure, located on both sides of the wheel disc 2. Specifically, the rear mudguard 52 is connected to the rotary tiller via a mounting rod 54. A set of pressure springs 55 of varying lengths are movably sleeved at the top of the outer surface of the mounting rod 54, at the upper and lower ends of the pin joint. The mounting rod 54 and pressure springs 55, while using the rear mudguard 52 to block splashed mud, apply downward pressure using the elasticity of the pressure springs 55. This not only prevents mud and water from splashing but also achieves secondary crushing of mud clods, leveling the soil after rotary tillage by the grid 3, and improving rotary tillage efficiency.

[0040] Furthermore, the rear mudguard 52 includes a main mudguard 521, an extended mudguard 522, and an elastic element 523. The main mudguard 521 is provided with a first fixing block 524 and a first hanging lug 525. The extended mudguard 522 is provided with a second fixing block 526 and a second hanging lug 527 that mate with the first fixing block 524. The first fixing block 524 and the second fixing block 526 are hinged by a pin. The elastic element 523 is provided with hooks at both ends. One end of the elastic element 523 is connected to the first hanging lug 525, and the other end of the elastic element 523 is connected to the second hanging lug 527. Preferably, the elastic element 523 is a spring. By applying pressure to the extended mudguard 522 using the elastic force of the elastic element 523, the track cover and footprints left by the rotary tiller during operation in paddy fields can be eliminated. It also has a field leveling function, improving rotary tillage efficiency.

[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A paddy field wheel device, characterized in that, include: The drive shaft (1) is connected to the drive structure (4) of the rotary tiller; Multiple sets of wheel discs (2) are evenly spaced on the drive shaft (1) along the length direction of the drive shaft (1); as well as Multiple sets of grid plates (3), each set of grid plates (3) includes a first grid plate (31) and a second grid plate (32). The edge of the wheel (2) is evenly spaced along its circumference with mounting grooves (21) that mate with the grid plates (3). The mounting grooves (21) are provided with an A end face (211) and a B end face (212) that abut against the grid plates (3). The radius of the wheel (2) of two adjacent mounting grooves (21) gradually increases from the A end face (211) of the mounting groove (21) to the B end face (212) of the next mounting groove (21), so that the length of the A end face (211) matches the height of the first grid plate (31), and the B end face (212) extends to the second grid plate (32). The grid plates (3) are exposed outside the mounting grooves (21). By means of the circumference along both sides of the mounting grooves (21) The grid plate (3) is welded and fixed in the wheel (2); the bottom of the two sides of the first grid plate (31) is provided with steps (34), and the inner wall of the steps (34) abuts against the inner wall of the mounting groove (21); the first grid plate (31) is provided with a first boss (311) facing the A end face (211), and the mounting groove (21) is provided with a first groove (213) that matches the first boss (311) on the A end face (211); the second grid plate (32) is provided with a second boss (321) facing the B end face (212), and the mounting groove (21) is provided with a second groove (214) that matches the second boss (321) on the B end face (212); the distance between the first boss (311) and the second boss (321) and the edge end of the grid plate (3) is equal; A first welding groove (33) is provided on the surface of the grid plate (3), and the first welding groove (33) is spaced apart along the width direction of the grid plate (3); a second welding groove (22) is provided on the wheel (2), and the second welding groove (22) is spaced apart along the mounting groove (21).

2. The paddy field wheel device according to claim 1, characterized in that, The first grid plate (31) and the second grid plate (32) are integrally formed and combined at an obtuse angle. The joint between the first grid plate (31) and the second grid plate (32) is rounded.

3. The paddy field wheel device according to claim 1 or 2, characterized in that, The first welding groove (33) and the second welding groove (22) are staggered.

4. The paddy field wheel device according to claim 1 or 2, characterized in that, The grid plates (3) of multiple sets of discs (2) are installed in an alternating manner.

5. The paddy field wheel device according to claim 1 or 2, characterized in that, Each set of discs (2) has multiple hollowed-out grooves (23) along its circumference.

6. The paddy field wheel device according to claim 1 or 2, characterized in that, It also includes a mudguard assembly (5), which includes a front mudguard (51), a rear mudguard (52) and a side mudguard (53); the front mudguard (51) is installed at the front end of the rotary tiller and is located above the wheel (2); the rear mudguard (52) is installed at the rear end of the rotary tiller and is located behind the wheel (2); the side mudguard (53) is fixedly installed on the rotary tiller and is located on both sides of the wheel (2).

7. The paddy field wheel device according to claim 6, characterized in that, The rear mudguard (52) includes a main mudguard (521), an extension mudguard (522), and an elastic element (523). The main mudguard (521) is provided with a first fixing block (524) and a first hanging ear (525). The extension mudguard (522) is provided with a second fixing block (526) and a second hanging ear (527) that match the first fixing block (524). The first fixing block (524) and the second fixing block (526) are hinged by a pin. One end of the elastic element (523) is connected to the first hanging ear (525), and the other end of the elastic element (523) is connected to the second hanging ear (527).

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