Rotary tillage harrow with cutter head convenient to replace

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a rotary tillage harrow convenient to replace a cutterhead, which comprises a rack, a cutterhead main body is transversely arranged at the bottom end in the rack, and a connecting shaft I is movably connected in the bottom end of the left side of the rack. In the maintenance process of the rotary tillage harrow facilitating replacement of the cutter head, after the rotary tillage harrow is detached from tractor equipment, the multiple sets of connecting nuts on one side of the first flange plate can be screwed out from the outer portions of the connecting bolts correspondingly on the two sides of the cutter head body, and after the connecting bolts are pulled out of the first flange plate and the second flange plate, the cutter head body can be replaced. The cutterhead main body and the multiple groups of rotary tillage blades can be integrally disassembled from the inside of the rack, the cutterhead main body and the rotary tillage blades can be conveniently maintained, cleaned and overhauled on the outer side, the cutterhead is of a separable structure, disassembly, assembly and replacement after deformation and damage are facilitated, and the problem that the cutterhead cutter is inconvenient to disassemble, assemble and maintain is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely is a rotary harrow convenient for replacing cutterhead. BACKGROUND

[0002] The rotary harrow is a commonly used agricultural machinery, mainly used for the soil breaking and land preparation operation of dry field. After being installed at the rear of the tractor, the rotary harrow can drive the internal cutterhead cutter to rotate to break the soil of the dry field through the power output shaft of the tractor, the universal joint transmission shaft and the transmission system, so as to facilitate the subsequent cultivation of the land, and is one of the indispensable tools in the agricultural planting process.

[0003] However, in the actual use process of the rotary harrow, the cutterhead assembly for installing the cutter inside the rotary harrow is generally directly installed inside the rotary harrow and cannot be disassembled. When the cutter is disassembled through a group-by-group disassembly method during the maintenance of the internal rotary cutter, the process is not only tedious, time-consuming and labor-consuming, but also extremely inconvenient to operate due to the limited internal space of the rotary harrow. Moreover, the cutterhead assembly cannot be replaced after deformation and damage, which is inconvenient for disassembling, replacing and maintaining the cutterhead cutter.

[0004] Now, a new rotary harrow convenient for replacing cutterhead is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a rotary harrow convenient for replacing cutterhead to solve the problem of inconvenient disassembling, replacing and maintaining the cutterhead cutter in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a rotary harrow convenient for replacing cutterhead, comprising a rack, a cutterhead main body is horizontally arranged at the bottom end inside the rack, a connecting shaft one is movably connected inside the bottom end of the left side of the rack, a connecting shaft two is movably connected inside the bottom end of the right side of the rack, the right side of the connecting shaft one and the left side of the connecting shaft two respectively penetrate the inner side of the rack and are welded and fixed with a flange plate one, the two sides of the cutterhead main body are respectively welded and fixed with a flange plate two, the interiors of the flange plate one and the flange plate two are respectively provided with an inner hole, the left side of the flange plate two is provided with a connecting bolt, the right side of the flange plate one is provided with a connecting nut, the top and bottom and both ends of the cutterhead main body are respectively welded and fixed with a cutter seat, and the interior of the cutter seat is installed and fixed with a rotary harrow blade.

[0007] Preferably, the inner hole penetrates the interiors of the flange plate one and the flange plate two respectively, six groups of annular equidistant inner holes are arranged in the interiors of the flange plate one and the flange plate two respectively, the connecting bolt penetrates the interiors of the flange plate two and the flange plate one respectively, and the connecting nut is threadedly connected to the outside of the connecting bolt.

[0008] Preferably, the connecting shaft one and the connecting shaft two are symmetrically arranged about the vertical center line of the frame, and the tool holders are arranged at equal intervals on the outside of the tool disc body.

[0009] Preferably, the top end of the frame is provided with a top plate, and the bottom of the top plate is provided with two screw rods at both sides, and the top of the frame is provided with two locking rings at both sides, and the top of the screw rods penetrates the inside of the top plate and the inside of the top end of the frame.

[0010] Preferably, the bottom end of the locking ring is provided with a non-slip pad, and the locking ring is threadedly connected to the outside of the screw rod.

[0011] Preferably, the rear end of the top of the frame is respectively provided with a mounting seat, and the top end of the mounting seat is fixedly provided with an LED flash, the rear end of the mounting seat is fixedly provided with a switch, the inside of the mounting seat is fixedly provided with a storage battery, and the storage battery is electrically connected between the switch and the LED flash.

[0012] Preferably, the top end of the frame is fixedly provided with a gear box at the middle position, and the two sides of the top end of the frame are respectively welded and fixedly provided with mounting plates, and the transmission shaft is movably connected between the mounting plates, the two sides of the transmission shaft penetrate the inside of the mounting plate, the two sides of the outside of the transmission shaft are respectively fixedly provided with a driven sprocket, the left side of the outside of the connecting shaft one and the right side of the outside of the connecting shaft two are respectively fixedly provided with a driven sprocket, the outside of the driven sprocket and the driven sprocket is provided with a transmission chain, the transmission shaft penetrates the inside of the gear box, the middle position of the outside of the transmission shaft is fixedly provided with a driven gear, the inside of the front end of the gear box is movably connected with an input shaft, the rear end of the input shaft penetrates the inside of the front end of the gear box and is fixedly provided with a driving gear, and the driving gear is meshingly connected with the driven gear.

[0013] Preferably, the mounting frame is mounted at the middle position of the front end of the top of the frame, and the rear end of the frame is hingedly mounted with a rear tail plate.

[0014] Compared with the prior art, the rotary harrow with the tool disc convenient to replace has the advantages that the tool disc cutter can be conveniently disassembled, replaced and maintained, the top end of the rotary harrow can be conveniently protected from impact, and the rotary harrow can be conveniently assisted in warning and reminding during work.

[0015] (1) By being provided with rack, connecting shaft one, tool holder, rotary tillage blade, connecting nut, connecting shaft two, connecting bolt, flange plate one, flange plate two, cutter head main body and inner hole, a plurality of connecting nuts on the side of the flange plate one can be respectively unscrewed from the outside of the connecting bolt, and the connecting bolt can be pulled out from the inside of the flange plate one and the flange plate two, so that the cutter head main body and the plurality of rotary tillage blades can be integrally pulled out from the inside of the rack, and the cutter head main body and the rotary tillage blades can be conveniently maintained, cleaned and repaired outside, and the cutter head can be separated and replaced after deformation and damage;

[0016] (2) By being provided with rack, screw rod, top plate and locking ring, the top plate is fixedly installed at the top end in the inside of the rack during rotary tillage, the top end in the inside of the rack is protected by the top plate, impact damage caused by the thrown stones and the like to the top end in the inside of the rack is reduced, and the thrown soil during rotary tillage can be attached to the bottom end of the top plate, so that the top end in the inside of the rotary tiller can be protected against impact and pollution by pulling out and cleaning the top plate during later cleaning.

[0017] (3) By being provided with rack, mounting seat, LED flash light, switch and storage battery, the LED flash light can be powered by the storage battery through the switch during rotary tiller operation, the LED flash light can flash after being powered, external personnel can be assisted in warning, and the safety during rotary tiller operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the structure of the utility model;

[0019] Figure 2 It is a side view of the structure of the flange plate one of the utility model;

[0020] Figure 3 It is a side view of the structure of the rack of the utility model;

[0021] Figure 4 It is a top view of the structure of the rack of the utility model.

[0022] In the drawing: 1, rotary tillage blade; 2, rack; 3, connecting shaft one; 4, driven sprocket; 5, transmission chain; 6, driving sprocket; 7, transmission shaft; 8, mounting seat; 9, screw rod; 10, top plate; 11, mounting frame; 12, gear box; 13, driven gear; 14, LED flash light; 15, locking ring; 16, mounting plate; 17, tool holder; 18, connecting nut; 19, connecting shaft two; 20, connecting bolt; 21, flange plate one; 22, flange plate two; 23, cutter head main body; 24, inner hole; 25, switch; 26, storage battery; 27, rear tail plate; 28, input shaft; 29, driving gear. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1-4 The utility model provides an embodiment: a rotary harrow convenient for replacing the cutter head, comprising frame 2, the bottom end of the inside of frame 2 is transversely provided with cutter head main body 23, the inside of the bottom end of the left side of frame 2 is movably connected with connecting shaft one 3, the inside of the bottom end of the right side of frame 2 is movably connected with connecting shaft two 19, the right side of connecting shaft one 3 and the left side of connecting shaft two 19 respectively penetrate the inside of frame 2 and are welded and fixed with flange plate one 21, the both sides of cutter head main body 23 are welded and fixed with flange plate two 22 respectively, the inside of flange plate one 21 and flange plate two 22 is respectively provided with inner hole 24, the left side of flange plate two 22 is provided with connecting bolt 20, the right side of flange plate one 21 is provided with connecting nut 18, the top and bottom and both ends of cutter head main body 23 are welded and fixed with cutter seat 17 respectively, and cutter seat 17 is internally mounted and fixed with rotary harrow blade 1;

[0025] Inner hole 24 penetrates the inside of flange plate one 21 and flange plate two 22 respectively, six groups of inner hole 24 are annularly and equidistantly arranged in the inside of flange plate one 21 and flange plate two 22 respectively, connecting bolt 20 penetrates the inside of flange plate two 22 and flange plate one 21 respectively, connecting nut 18 is threadedly rotatably connected to the outside of connecting bolt 20, connecting shaft one 3 and connecting shaft two 19 are symmetrically arranged about the vertical center line of frame 2, and multiple groups of cutter seat 17 are equidistantly arranged on the outside of cutter head main body 23;

[0026] Specifically, as shown in Figure 1 And Figure 2 After being detached from the tractor equipment, multiple groups of connecting nut 18 on one side of flange plate one 21 can be respectively unscrewed from the outside of connecting bolt 20, and connecting bolt 20 can be pulled out of the inside of flange plate one 21 and flange plate two 22, so that cutter head main body 23 and multiple groups of rotary harrow blade 1 can be integrally detached from the inside of frame 2, and cutter head main body 23 and rotary harrow blade 1 can be conveniently maintained, cleaned and repaired on the outside, and the cutter head has a detachable structure.

[0027] The top end inside the rack 2 is provided with a top plate 10, and the bottom of the two sides of the top plate 10 is provided with a screw rod 9, and the two ends of the top of the two sides of the rack 2 are provided with a locking ring 15, the top end of the screw rod 9 penetrates the inside of the top plate 10 and the inside of the top end of the rack 2 respectively, the bottom end of the locking ring 15 is provided with an anti-skid pad, and the locking ring 15 is threadedly connected to the outside of the screw rod 9;

[0028] Specifically, as shown in Figure 1 and Figure 4 , the top end inside the rack 2 is provided with a top plate 10, and the bottom of the two sides of the top plate 10 is provided with a screw rod 9, and the two ends of the top of the two sides of the rack 2 are provided with a locking ring 15, the top end of the screw rod 9 penetrates the inside of the top plate 10 and the inside of the top end of the rack 2 respectively, the bottom end of the locking ring 15 is provided with an anti-skid pad, and the locking ring 15 is threadedly connected to the outside of the screw rod 9;

[0029] The rear end of the top of the two sides of the rack 2 is fixedly provided with a mounting seat 8, and the top end of the mounting seat 8 is fixedly provided with an LED flash 14, the rear end of the mounting seat 8 is fixedly provided with a switch 25, and the inside of the mounting seat 8 is fixedly provided with a storage battery 26, and the storage battery 26 is electrically connected between the switch 25 and the LED flash 14;

[0030] Specifically, as shown in Figure 1 and Figure 2 , the storage battery 26 can be used to power the LED flash 14 by opening the switch 25, and the LED flash 14 can flash after being powered on to assist in warning external personnel and improve the safety of the rotary harrow operation.

[0031] The middle position of the top end of the rack 2 is fixedly provided with a gear box 12, the two sides of the top end of the rack 2 are respectively welded and fixedly provided with a mounting plate 16, and the inside of the mounting plate 16 is movably connected with a transmission shaft 7, the two sides of the transmission shaft 7 respectively penetrate the inside of the mounting plate 16, the two sides of the outside of the transmission shaft 7 are respectively fixedly provided with a driving sprocket 6, the left side of the outside of the connecting shaft one 3 and the right side of the outside of the connecting shaft two 19 are respectively fixedly provided with a driven sprocket 4, the outside of the driven sprocket 4 and the driving sprocket 6 is provided with a transmission chain 5, the transmission shaft 7 penetrates the inside of the gear box 12, the middle position of the outside of the transmission shaft 7 is fixedly provided with a driven gear 13, the inside of the front end of the gear box 12 is movably connected with an input shaft 28, the rear end of the input shaft 28 penetrates the inside of the front end of the gear box 12 and is fixedly provided with a driving gear 29, and the driving gear 29 is meshingly connected with the driven gear 13, the middle position of the top of the front end of the rack 2 is provided with a mounting frame 11, and the top of the rear end of the rack 2 is hingedly provided with a rear tail plate 27.

[0032] Working principle: the utility model uses, fixedly installed with roof 10 in the top end inside the frame 2, through the setting roof 10 can be to the top end inside the frame 2 pad anticollision protection and prevent pollution, simultaneously rotary harrow operation uses, can open switch 25 and use battery 26 to the LED flash light 14 and carry electricity, the LED flash light 14 carries electricity and can blink, to the external personnel and carry out auxiliary warning, to rotary harrow maintenance, after unloading from tractor equipment, can be respectively in the both sides position of cutter head main body 23, the multiple sets of connecting nut 18 of flange plate one 21 side are respectively corresponding from the outside of connecting bolt 20 and are extracted the inside of flange plate one 21 and flange plate two 22 after connecting bolt 20, cutter head main body 23 can be with multiple sets of rotary tillage blade 1 whole from the inside of frame 2 and be taken out, can conveniently maintain cutter head main body 23 and rotary tillage blade 1 and overhaul operation on the outside, when using, install the rotary harrow in the rear of tractor with mounting frame (11), and after the input shaft (28) is connected with tractor output shaft, through tractor output shaft drive input shaft (28) rotation, and utilize the meshing driving gear (29) and driven gear (13) drive transmission shaft (7) rotation, transmission shaft (7) rotation can utilize driving sprocket (6), transmission chain (5) and driven sprocket (4) drive cutter head main body (23) rotation utilize the outside multiple sets of rotary tillage blade (1) to carry out soil breaking operation on the land ground.

[0033] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without departing from the spirit or essential characteristics of the present application. Therefore, the present application should not be considered as being limited to the above-described embodiments, but should be defined by the appended claims and their equivalents, and all changes which come within the meaning and range of equivalents are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims.

Claims

1. A rotary harrow with a cutting disc that is easy to replace, comprising a frame (2), characterized in that: The bottom end of the inside of the rack (2) is transversely provided with a cutter head body (23), the left bottom end of the inside of the rack (2) is movably connected with a connecting shaft one (3), the right bottom end of the inside of the rack (2) is movably connected with a connecting shaft two (19), the right side of the connecting shaft one (3) and the left side of the connecting shaft two (19) respectively penetrate the inside of the rack (2) and are welded and fixed with a flange plate one (21), the both sides of the cutter head body (23) are welded and fixed with a flange plate two (22), the inside of the flange plate one (21) and the flange plate two (22) is respectively provided with an inner hole (24), the left side of the flange plate two (22) is provided with a connecting bolt (20), the right side of the flange plate one (21) is provided with a connecting nut (18), the top and bottom and both ends of the cutter head body (23) are welded and fixed with a cutter seat (17), and the inside of the cutter seat (17) is mounted and fixed with a rotary tillage blade (1).

2. A rotary harrow according to claim 1, wherein: The inner hole (24) penetrates the inside of the flange plate one (21) and the flange plate two (22) respectively, six groups of annular equidistant inner holes (24) are formed in the inside of the flange plate one (21) and the flange plate two (22) respectively, the connecting bolt (20) penetrates the inside of the flange plate two (22) and the flange plate one (21) respectively, and the connecting nut (18) is threadedly connected to the outside of the connecting bolt (20).

3. The rotary harrow of claim 1, wherein: The connecting shaft one (3) and the connecting shaft two (19) are symmetrically arranged about the vertical center line of the rack (2), and the cutter seat (17) is equidistantly arranged on the outside of the cutter head body (23).

4. The rotary harrow of claim 1, wherein: The top end of the inside of the rack (2) is provided with a top plate (10), and the both ends of the bottom sides of the top plate (10) are respectively provided with a screw rod (9), the both ends of the top sides of the rack (2) are respectively provided with a locking ring (15), and the top ends of the screw rods (9) respectively penetrate the inside of the top plate (10) and the inside of the top end of the rack (2).

5. A rotary harrow according to claim 4 wherein: The bottom end of the locking ring (15) is provided with an anti-skid pad, and the locking ring (15) is threadedly connected to the outside of the screw rod (9).

6. The rotary harrow of claim 1, wherein: The rear ends of the both sides of the top of the rack (2) are respectively mounted and fixed with a mounting seat (8), the top end of the mounting seat (8) is fixed with an LED flash light (14), the rear end of the mounting seat (8) is fixed with a switch (25), the inside of the mounting seat (8) is fixed with a storage battery (26), and the storage battery (26) is electrically connected between the switch (25) and the LED flash light (14).

7. The rotary harrow of claim 1, wherein: The middle position of the top end of the frame (2) is fixed with a gear box (12), both sides of the top end of the frame (2) are respectively welded with a mounting plate (16), and the mounting plate (16) is movably connected with a transmission shaft (7), both sides of the transmission shaft (7) respectively penetrates the inside of the mounting plate (16), both sides of the outside of the transmission shaft (7) are respectively fixed with a driving sprocket (6), the left side of the outside of the connecting shaft one (3) and the right side of the outside of the connecting shaft two (19) are respectively fixed with a driven sprocket (4), the outside of the driven sprocket (4) and the driving sprocket (6) is installed with a transmission chain (5), the transmission shaft (7) penetrates the inside of the gear box (12), the middle position of the outside of the transmission shaft (7) is fixed with a driven gear (13), the inside of the front end of the gear box (12) is movably connected with an input shaft (28), and the rear end of the input shaft (28) penetrates the inside of the front end of the gear box (12) and is fixed with a driving gear (29), and the driving gear (29) is movably connected with the driven gear (13).

8. The rotary harrow of claim 1, wherein: The middle position of the top end of the frame (2) is fixed with a gear box (12), both sides of the top end of the frame (2) are respectively welded with a mounting plate (16), and the mounting plate (16) is movably connected with a transmission shaft (7), both sides of the transmission shaft (7) respectively penetrates the inside of the mounting plate (16), both sides of the outside of the transmission shaft (7) are respectively fixed with a driving sprocket (6), the left side of the outside of the connecting shaft one (3) and the right side of the outside of the connecting shaft two (19) are respectively fixed with a driven sprocket (4), the outside of the driven sprocket (4) and the driving sprocket (6) is installed with a transmission chain (5), the transmission shaft (7) penetrates the inside of the gear box (12), the middle position of the outside of the transmission shaft (7) is fixed with a driven gear (13), the inside of the front end of the gear box (12) is movably connected with an input shaft (28), and the rear end of the input shaft (28) penetrates the inside of the front end of the gear box (12) and is fixed with a driving gear (29), and the driving gear (29) is movably connected with the driven gear (13). The middle position of the top end of the frame (2) is fixed with a gear box (12), both sides of the top end of the frame (2) are respectively welded with a mounting plate (16), and the mounting plate (16) is movably connected with a transmission shaft (7), both sides of the transmission shaft (7) respectively penetrates the inside of the mounting plate (16), both sides of the outside of the transmission shaft (7) are respectively fixed with a driving sprocket (6), the

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