Rotary cultivator with rotary blade convenient to replace

Abstract

The utility model belongs to the technical field of rotary cultivators, in particular to a rotary cultivator with a rotary blade convenient to replace, which comprises a frame, a transmission device is arranged in the middle of the frame, output ends on two sides of the transmission device are respectively connected with a first blade shaft and a second blade shaft, and mounting lantern rings are sleeved on the outer sides of the first blade shaft and the second blade shaft. First blade sockets distributed in a surrounding mode are arranged on the outer side of the installation lantern ring, first blade inserting grooves are formed in the side faces of the first blade sockets, inserting rod inserting grooves are formed in the side faces of the installation lantern ring and connected with inserting rods in an inserted mode, one ends of the inserting rods are connected with a movable lantern ring, and second blade sockets are arranged on the side faces of the movable lantern ring. According to the device, the blades can be rapidly replaced, and compared with the mode that in the prior art, when each blade is replaced, a corresponding bolt needs to be screwed off, the replacement efficiency of the rotary tillage blades is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary tillers, and particularly relates to a rotary tiller which is convenient for replacing rotary tillage blades. Background Art

[0002] A rotary tiller is a tillage machine that is matched with a tractor to complete tillage and harrowing operations. Because of its strong soil crushing ability and flat surface after tillage, it has been widely used; at the same time, it can cut and break the stubble buried below the ground surface, which is convenient for the operation of a seeder and provides a good seedbed for later sowing. Since the rotary tillage blades of the rotary tiller are relatively easy to wear and damage during long-term use, it is often necessary to replace the blades according to requirements. However, in the prior art, the fixing between the blade and the tool shaft is mostly carried out through bolts, and each blade needs to be fixed by a separate bolt, resulting in a low replacement efficiency when replacing a large number of blades. Content of the Utility Model

[0003] Aiming at the above problems, the purpose of the utility model is to provide a rotary tiller which is convenient for replacing rotary tillage blades. This device can quickly replace the blades, and compared with the method in the prior art where each blade needs to be unscrewed with a corresponding bolt during replacement, the replacement efficiency of the rotary tillage blades is greatly improved.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A rotary tiller which is convenient for replacing rotary tillage blades, including a frame. A transmission device is arranged in the middle part of the frame. The two output ends of the transmission device are respectively connected with a first tool shaft and a second tool shaft. Installation collar rings are sleeved outside the first tool shaft and the second tool shaft. First blade sockets are distributed around the outside of the installation collar rings. First blade slots are opened on the sides of the first blade sockets. Plug rod slots are arranged on the sides of the installation collar rings. The plug rod slots are inserted and connected with plug rods. One end of the plug rod is connected with a moving collar ring. Second blade sockets are arranged on the side of the moving collar ring. Second blade slots are opened on the sides of the second blade sockets. Limiting grooves are arranged at one ends of the first blade slots and the second blade slots close to the first tool shaft and the second tool shaft. A rotary tillage blade is inserted and installed jointly inside the first blade slots and the second blade slots.

[0005] The beneficial effect of the utility model is that when the rotary tillage blades need to be replaced in this device, only the blade fixing bolts on the installation collar ring and the moving collar ring where the blades to be replaced are located need to be unscrewed, and the moving collar ring is pulled to release the fixing of the rotary tillage blades, then the rotary tillage blades can be easily and quickly removed completely and new rotary tillage blades can be replaced. When only some blades need to be replaced, the single or multiple blades to be replaced can also be quickly replaced. Compared with the method in the prior art where each blade needs to be unscrewed with a corresponding bolt during replacement, the replacement efficiency of the rotary tillage blades is greatly improved.

[0006] For the fixation between the mounting collar and the first cutter shaft and the second cutter shaft:

[0007] As a further improvement of the above technical solution: a first bolt hole runs through between the inner side and the outer side of the mounting collar, first screw holes are inwardly formed on the surfaces of the first cutter shaft and the second cutter shaft, and a collar fixing bolt is connected between the first bolt hole and the first screw hole.

[0008] The beneficial effect of this improvement is that the mounting collar is fixed to the first cutter shaft and the second cutter shaft by connecting the first bolt hole and the first screw hole with the collar fixing bolt.

[0009] For the rotary tillage blade to be stably installed between the mounting collar and the moving collar:

[0010] As a further improvement of the above technical solution: a blade fixing seat is provided at the end of the rotary tillage blade, and the blade fixing seat fits with the limiting groove.

[0011] The beneficial effect of this improvement is that the blade fixing seat cooperates with the limiting groove, enabling the rotary tillage blade to be stably installed between the mounting collar and the moving collar.

[0012] For the fixation between the moving collar and the mounting collar:

[0013] As a further improvement of the above technical solution: a second bolt hole runs through between the two sides of the moving collar, a second screw hole is provided on one side of the mounting collar, and a blade fixing bolt is connected between the second bolt hole and the second screw hole.

[0014] The beneficial effect of this improvement is that the moving collar and the mounting collar are fixed by connecting the second bolt hole and the second screw hole with the blade fixing bolt.

[0015] For the connection of this device to a tractor:

[0016] As a further improvement of the above technical solution: a traction frame is fixedly welded to the top of the frame.

[0017] The beneficial effect of this improvement is that the traction frame is used to connect to the suspension point of the tractor, enabling the tractor to drive this device to move.

[0018] Parts not involved in this device are the same as the prior art or can be implemented using the prior art. Description of the Drawings

[0019] Figure 1 is the bottom axonometric structure schematic diagram of the present utility model;

[0020] Figure 2 is the structure schematic diagram of the first cutter shaft in the present utility model;

[0021] Figure 3 Schematic diagram of the installation of the first cutter shaft and rotary tillage blades in the present utility model;

[0022] Figure 4 Schematic diagram of the installation structure of the rotary tillage blades in the present utility model;

[0023] Figure 5 Schematic diagram of the installation structure of the mounting collar and rotary tillage blades in the present utility model;

[0024] Figure 6 Schematic diagram of the separation structure of the mounting collar and the movable collar in the present utility model;

[0025] In the figure: 1, frame; 2, transmission device; 3, first cutter shaft; 4, second cutter shaft; 5, mounting collar; 6, first bolt hole; 7, first screw hole; 8, collar fixing bolt; 9, first blade socket; 10, first blade slot; 11, rotary tillage blade; 12, blade fixing seat; 13, insert rod slot; 14, insert rod; 15, movable collar; 16, second blade slot; 17, limit slot; 18, second bolt hole; 19, second screw hole; 20, blade fixing bolt; 21, second blade socket. Specific embodiments

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0027] As Figure 1-6 shown, a rotary tiller for conveniently replacing rotary tillage blades includes a frame 1. A transmission device 2 is provided in the middle of the frame 1. The output ends on both sides of the transmission device 2 are respectively connected to a first cutter shaft 3 and a second cutter shaft 4. Mounting collars 5 are sleeved on the outer sides of the first cutter shaft 3 and the second cutter shaft 4. The outer sides of the mounting collars 5 are provided with circumferentially distributed first blade sockets 9. The sides of the first blade sockets 9 are provided with first blade slots 10. The sides of the mounting collars 5 are provided with insert rod slots 13. The insert rod slots 13 are inserted and connected with an insert rod 14. One end of the insert rod 14 is connected to a movable collar 15. The side of the movable collar 15 is provided with a second blade socket 21. The side of the second blade socket 21 is provided with a second blade slot 16. Limit slots 17 are provided at one ends of the first blade slot 10 and the second blade slot 16 close to the first cutter shaft 3 and the second cutter shaft 4. The rotary tillage blade 11 is inserted and installed jointly inside the first blade slot 10 and the second blade slot 16.

[0028] When the rotary tillage blade 11 needs to be replaced, only the installation collar 5 where the blade to be replaced is located needs to be unscrewed, the blade fixing bolt 20 on the moving collar 15 is moved, and the moving collar 15 is pulled to release the fixing of the rotary tillage blade 11, so that the rotary tillage blade 11 can be easily and quickly removed completely and replaced with a new one. When only some blades need to be replaced, individual or multiple blades to be replaced can also be quickly replaced. Compared with the method of unscrewing a corresponding bolt for each blade in the prior art, the replacement efficiency of the rotary tillage blade 11 is greatly improved.

[0029] A first bolt hole 6 runs through between the inner side and the outer side of the installation collar 5. First screw holes 7 are inwardly formed on the surfaces of the first cutter shaft 3 and the second cutter shaft 4. A collar fixing bolt 8 is connected between the first bolt hole 6 and the first screw hole 7.

[0030] The installation collar 5 is fixed to the first cutter shaft 3 and the second cutter shaft 4 by connecting the first bolt hole 6 and the first screw hole 7 through the collar fixing bolt 8.

[0031] A blade fixing seat 12 is provided at the end of the rotary tillage blade 11, and the blade fixing seat 12 fits with the limiting groove 17.

[0032] The blade fixing seat 12 cooperates with the limiting groove 17, so that the rotary tillage blade 11 can be stably installed between the installation collar 5 and the moving collar 15.

[0033] A second bolt hole 18 runs through between the two sides of the moving collar 15. A second screw hole 19 is provided on one side of the installation collar 5. A blade fixing bolt 20 is connected between the second bolt hole 18 and the second screw hole 19.

[0034] The moving collar 15 and the installation collar 5 are fixed by connecting the second bolt hole 18 and the second screw hole 19 through the blade fixing bolt 20.

[0035] A towing frame is welded and fixed to the top of the frame 1.

[0036] The towing frame is used to connect with the suspension point of the tractor, so that the tractor can drive this device to move.

[0037] Working principle and usage process of the utility model: When this device is in use, the installation collar 5 is sleeved outside the first cutter shaft 3 and the second cutter shaft 4. After aligning the first bolt holes 6 and the first screw holes 7, the collar fixing bolt 8 is used to fix between the installation collar 5, the first cutter shaft 3 and the second cutter shaft 4. Subsequently, the rotary tillage blades 11 can be installed. During installation, the fixing of the blade fixing bolt 20 between the installation collar 5 and the movable collar 15 is released. Then, the movable collar 15 is pulled open through the telescopic function between the inserting rod slots 13 and the inserting rods 14. The rotary tillage blade 11 can be placed into the first blade slot 10 of the first blade socket 9 on the installation collar 5, and the blade fixing seat 12 is fitted with the limiting slot 17 in the first blade slot 10. Then, the movable collar 15 can be pushed back, and the blade fixing bolt 20 is used to reconnect the second bolt hole 18 and the second screw hole 19 to complete the fixing between the installation collar 5 and the movable collar 15. Subsequently, the rotary tillage work can start. When the rotary tillage blades 11 need to be replaced, only the blade fixing bolts 20 on the installation collar 5 and the movable collar 15 where the blades to be replaced are located need to be unscrewed, and the movable collar 15 is pulled to release the fixing of the rotary tillage blades 11. Then, all the rotary tillage blades 11 can be easily and quickly removed and new rotary tillage blades 11 can be installed. When only some blades need to be replaced, single or multiple blades to be replaced can also be quickly replaced. Compared with the method of unscrewing a corresponding bolt for each blade in the prior art, the replacement efficiency of the rotary tillage blades 11 is greatly improved.

[0038] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0039] In this article, specific examples are used to elaborate on the principle and implementation manner of the utility model. The description of the above examples is only used to help understand the method of the utility model and its core idea. The above is only the preferred implementation manner of the utility model. It should be pointed out that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the utility model, several improvements, retouches or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, retouches, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the utility model.

Claims

1. A rotary tiller that facilitates the replacement of rotary tillage blades, characterized in that: It includes a frame (1), a transmission device (2) is provided in the middle part of the frame (1), the output ends on both sides of the transmission device (2) are respectively connected to a first cutter shaft (3) and a second cutter shaft (4), mounting collars (5) are sleeved on the outer sides of the first cutter shaft (3) and the second cutter shaft (4), a first blade socket (9) is provided on the outer side of the mounting collar (5) in a circumferential distribution, a first blade slot (10) is opened on the side surface of the first blade socket (9), a plug rod slot (13) is provided on the side surface of the mounting collar (5), the plug rod slot (13) is inserted and connected with a plug rod (14), one end of the plug rod (14) is connected with a movable collar (15), a second blade socket (21) is provided on the side surface of the movable collar (15), a second blade slot (16) is opened on the side surface of the second blade socket (21), limiting grooves (17) are provided at one ends of the first blade slot (10) and the second blade slot (16) close to the first cutter shaft (3) and the second cutter shaft (4), and a rotary tillage blade (11) is inserted and installed jointly inside the first blade slot (10) and the second blade slot (16).

2. The rotary tiller according to claim 1, which is convenient for replacing rotary tillage blades, is characterized in that: A first bolt hole (6) runs through between the inner side and the outer side of the mounting collar (5), first screw holes (7) are inwardly opened on the surfaces of the first cutter shaft (3) and the second cutter shaft (4), and a collar fixing bolt (8) is connected between the first bolt hole (6) and the first screw hole (7).

3. A rotary tiller for conveniently replacing rotary tillage blades according to claim 1, characterized in that: A blade fixing seat (12) is provided at the end of the rotary tillage blade (11), and the blade fixing seat (12) fits with the limiting groove (17).

4. A rotary tiller for conveniently replacing rotary tillage blades according to claim 1, characterized in that: A second bolt hole (18) runs through between the two sides of the movable collar (15), a second screw hole (19) is provided on one side of the mounting collar (5), and a blade fixing bolt (20) is connected between the second bolt hole (18) and the second screw hole (19).

5. A rotary tiller for conveniently replacing rotary tillage blades according to claim 1, characterized in that: A towing frame is welded and fixed to the top of the frame (1).

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