Rotary cultivator convenient to install

Abstract

The utility model discloses a rotary cultivator convenient to install, and relates to the technical field of rotary cultivators. The device comprises a mounting frame and is characterized in that a connecting seat is fixedly arranged in the middle of the upper end of the mounting frame, a gear box is arranged in the connecting seat, the lower end of the gear box is fixedly connected with the mounting frame, a universal joint is rotationally arranged on one side of the gear box, a telescopic rod is fixedly arranged at the other end of the universal joint, and springs are arranged on the periphery of the telescopic rod; one end of the spring is fixedly connected with the universal joint, and the other end of the spring is fixedly provided with an outer threaded pipe. Compared with an existing common rotary cultivator, the rotary cultivator convenient to install has the advantages that after the connecting base and the tractor are directly connected and fixed, the telescopic rod is compressed and aligned with the transmission shaft of the tractor, after the telescopic rod is loosened, the telescopic rod is reset under the action of the spring, and finally the outer threaded pipe is screwed to be connected with the inner threaded pipe placed on the transmission shaft of the tractor; therefore, the convenience of the device can be improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary tillers, and specifically relates to a rotary tiller that is convenient to install. Background Technique

[0002] A rotary tiller is a tillage machine that is matched with a tractor to complete plowing 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 crush the stubble buried below the ground surface, which is convenient for the operation of the seeder and provides a good seedbed for later sowing.

[0003] For example, the application number is 201320844659.6. The utility model is an agricultural rotary tillage mechanism for harvesting, threshing, and rotary tillage of crops such as rice, wheat, and rape. It includes a rotary tiller body connected to a driving machine, a rotary tillage device connected to the rotary tiller body and driven by a harvester power mechanism. A mudguard is connected to the rotary tiller body. The mudguard is a mudguard that can be lowered or retracted. After it is lowered, its lower end contacts the ground, and after it is retracted, it is close to the rotary tiller body. After the mudguard is lowered, it can support the rotary tillage mechanism, prevent the rotary tillage mechanism and the rotary tillage blades from sinking together, and also prevent the rotary tillage blades from sinking, avoiding the stoppage of work caused by the sinking of the harvester rotary tillage mechanism. After the mudguard is retracted, the driving machine can travel in a non-working state. However, this rotary tiller requires the cooperation of multiple people to complete the installation during connection, and when connecting the transmission shaft, the position needs to be repeatedly calibrated and adjusted. This traditional connection method is neither convenient and flexible enough, nor is it convenient to avoid hand injuries to workers, and it is not convenient to flexibly adjust the spacing between the blades according to the usage situation, and it is not convenient to avoid soil, stones, etc. getting stuck between the blades.

[0004] Therefore, in view of this, in view of the existing structural deficiencies, research and improvement are carried out to propose a rotary tiller that is convenient to install. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rotary tiller that is convenient to install, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A rotary tiller that is convenient to install, including an installation frame. A connection seat is fixedly arranged in the middle of the upper end of the installation frame, and a gearbox is arranged inside the connection seat. The lower end of the gearbox is fixedly connected to the installation frame, and a universal joint is rotatably arranged on one side of the gearbox. The other end of the universal joint is fixedly provided with a telescopic rod, and a spring is arranged around the telescopic rod. One end of the spring is fixedly connected to the universal joint, and the other end of the spring is fixedly provided with an external threaded pipe.

[0007] Preferably, the external threaded tube is also slidably connected to the telescopic rod. A first chute is provided on the side of the mounting frame, and four first chutes are symmetrically arranged along the center line of the mounting frame. A double-headed bolt is rotatably arranged inside the first chute, and one end of the double-headed bolt is adapted to the first chute. A circular ring is arranged on the outer side of the other end of the double-headed bolt.

[0008] Preferably, one end of the circular ring away from the double-headed bolt is fixedly provided with a first pneumatic rod. The other end of the first pneumatic rod is also fixedly provided with a circular ring. An installation rod is arranged inside the circular ring, and one end of the installation rod is engaged with one end of the double-headed bolt. A baffle is slidably arranged around the installation rod.

[0009] Preferably, a first cushion block is arranged at the other end of the baffle. The first cushion block is also slidably connected to the installation rod. A rotating shaft is arranged below the installation rod inside the mounting frame, and an installation disk is arranged on the outer side of the rotating shaft. The installation disk is rotatably connected to the mounting frame, and four second pneumatic rods are fixedly arranged around the installation disk.

[0010] Preferably, the four second pneumatic rods are evenly distributed around the center of the installation disk, and the other end of the second pneumatic rod is fixedly provided with a top block. The top block is also slidably connected to the rotating shaft. A cutter disk is slidably arranged around the rotating shaft, and blades are rotatably arranged around the middle of the cutter disk.

[0011] Preferably, eight blades are evenly distributed around the center point of the cutter disk. A second chute is provided around the rotating shaft, and four second chutes are evenly distributed around the center of the rotating shaft. The second chute penetrates through the rotating shaft.

[0012] Preferably, a screw is slidably arranged inside the second chute. A second cushion block is arranged on one side of the cutter disk, and the second cushion block is also slidably connected to the rotating shaft. The second cushion block is also slidably connected to the screw.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. Through the settings of the mounting frame, connecting seat, gearbox, universal joint, telescopic rod, spring and external threaded tube in the utility model, when connecting the device to the rear end of the tractor, directly connect the connecting seat to the tractor. After fixation, compress the telescopic rod and align it with the transmission shaft of the tractor. After loosening, it will reset under the action of the spring. Finally, turn the external threaded tube to connect it to the internal threaded tube placed on the transmission shaft of the tractor, which can improve the convenience of the device and reduce the labor intensity of workers.

[0015] 2. The present utility model, through the settings of the first sliding groove, double-headed bolt, circular ring, first pneumatic rod, mounting rod, baffle plate and first cushion block, after the cutter group is installed, the baffle plate and the first cushion block are installed on the mounting rod according to the spacing of the blades. And during installation, the first cushion block needs to be installed above the blade, and the baffle plate needs to be installed above the second cushion block. In this way, during operation, the impurities between the blades can be removed by the baffle plate, thereby improving the working efficiency of the device;

[0016] 3. The present utility model, through the settings of the rotating shaft, mounting disc, second pneumatic rod, top block, cutter disc, blade, second cushion block, second sliding groove and screw, before work, first select the appropriate number of cutter discs and second cushion blocks according to the work requirements. When the second cushion block is installed on the rotating shaft, the screw needs to be installed on the second cushion block first, and then the screw is aligned with the second sliding groove and inserted. In this way, the second cushion block can be fixed by the screw, and thus the blade can be fixed by the second cushion block; after all the installations are completed, the rotating shaft is first inserted into the middle of the mounting frame, and then the top block is pushed. When the top block is aligned with the rotating shaft, let go, and the second pneumatic rod can reset the top block and fix the rotating shaft. In this way, the installation can be completed and the work can start, thereby simplifying the work process and reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is the partial cross-sectional structure schematic diagram of the mounting frame of the present utility model;

[0019] Figure 3 is the present utility model Figure 2 the enlarged structure schematic diagram at A in;

[0020] Figure 4 is the enlarged cross-sectional structure schematic diagram of the cutter disc group of the present utility model.

[0021] In the figure: 1, mounting frame; 2, connecting seat; 3, gear box; 4, universal joint; 5, telescopic rod; 6, spring; 7, external thread tube; 8, first sliding groove; 9, double-headed bolt; 10, circular ring; 11, first pneumatic rod; 12, mounting rod; 13, baffle plate; 14, first cushion block; 15, rotating shaft; 16, mounting disc; 17, second pneumatic rod; 18, top block; 19, cutter disc; 20, blade; 21, second cushion block; 22, second sliding groove; 23, screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1-2 shown, a rotary tiller that is convenient for installation includes an installation frame 1. A connecting seat 2 is fixedly arranged in the middle of the upper end of the installation frame 1, and a gearbox 3 is arranged inside the connecting seat 2. The lower end of the gearbox 3 is fixedly connected to the installation frame 1, and a universal joint 4 is rotatably arranged on one side of the gearbox 3. The other end of the universal joint 4 is fixedly provided with a telescopic rod 5, and a spring 6 is arranged around the telescopic rod 5. One end of the spring 6 is fixedly connected to the universal joint 4, and the other end of the spring 6 is fixedly provided with an external thread tube 7. When connecting the device to the rear end of the tractor, directly connect the connecting seat 2 to the tractor. After fixing, compress the telescopic rod 5 and align it with the transmission shaft of the tractor. After releasing, it will reset under the action of the spring 6. Finally, turn the external thread tube 7 to connect it to the internal thread tube placed on the transmission shaft of the tractor. In this way, the convenience of the device can be improved and the labor intensity of workers can be reduced.

[0024] Furthermore, no relative rotation will occur between the two rods of the telescopic rod 5, avoiding slipping during transmission.

[0025] Furthermore, the external thread tube 7 can fix the position of the telescopic rod 5 to prevent it from becoming loose.

[0026] As Figures 3-4As shown in the figure, the external thread tube 7 is simultaneously slidably connected to the telescopic rod 5. A first chute 8 is provided on the side of the mounting bracket 1, and four first chutes 8 are symmetrically arranged along the center line of the mounting bracket 1. A double-headed bolt 9 is rotatably arranged inside the first chute 8, and one end of the double-headed bolt 9 is adapted to the first chute 8. A ring 10 is arranged on the outer side of the other end of the double-headed bolt 9. One end of the air pressure rod 11 is fixedly arranged at the end of the ring 10 away from the double-headed bolt 9. The other end of the air pressure rod 11 is also fixedly provided with a ring 10. An installation rod 12 is arranged inside the ring 10, and one end of the installation rod 12 is engaged with one end of the double-headed bolt 9. A baffle 13 is slidably arranged around the installation rod 12. A first cushion block 14 is arranged at the other end of the baffle 13, and the first cushion block 14 is simultaneously slidably connected to the installation rod 12. A rotating shaft 15 is arranged below the installation rod 12 inside the mounting bracket 1. An installation disc 16 is arranged on the outer side of the rotating shaft 15. The installation disc 16 is rotatably connected to the mounting bracket 1. Four air pressure rods 17 are fixedly arranged around the center of the installation disc 16. The other ends of the air pressure rods 17 are fixedly provided with top blocks 18, and the top blocks 18 are simultaneously slidably connected to the rotating shaft 15. A cutter disc 19 is slidably arranged around the rotating shaft 15. Blades 20 are rotatably arranged around the middle of the cutter disc 19. Eight blades 20 are evenly distributed around the center point of the cutter disc 19. Second chutes 22 are provided around the rotating shaft 15. Four second chutes 22 are evenly distributed around the center of the rotating shaft 15. The second chutes 22 penetrate through the rotating shaft 15. Screws 23 are slidably arranged inside the second chutes 22. A second cushion block 21 is arranged on one side of the cutter disc 19, and the second cushion block 21 is simultaneously slidably connected to the rotating shaft 15 and the screw 23. The baffle 13 and the first cushion block 14 are installed on the installation rod 12 according to the spacing of the blades 20. During installation, the first cushion block 14 needs to be installed above the blade 20, and the baffle 13 needs to be installed above the second cushion block 21. In this way, during operation, impurities between the blades 20 can be removed by the baffle 13, thereby improving the working efficiency of the device; before work, first select an appropriate number of cutter discs 19 and second cushion blocks 21 according to the work requirements. When installing the second cushion block 21 on the rotating shaft 15, the screw 23 needs to be installed on the second cushion block 21 first, and then the screw 23 is aligned with the second chute 22 and inserted. In this way, the second cushion block 21 can be fixed by the screw 23, and the blade 20 can be fixed by the second cushion block 21; after all installations are completed, the rotating shaft 15 is first inserted into the middle of the mounting bracket 1, and then the top block 18 is pushed. When the top block 18 is aligned with the rotating shaft 15, release the hand. The top block 18 can be reset and the rotating shaft 15 can be fixed by the air pressure rod 17. In this way, the installation can be completed and work can start, thereby simplifying the work process and reducing the labor intensity of workers.

[0027] Furthermore, the first chute 8 allows the installation rod 12 to slide within a certain range, so that both the front and rear ends of the device can be used.

[0028] Further, a nut can be installed at one end of the stud bolt 9 located in the first chute 8, which can prevent the mounting rod 12 from disengaging during use. The other end of the stud bolt 9 meshes with the mounting rod 12, so that the mounting rod 12 can be tightened by rotating the stud bolt 9.

[0029] Further, the cooperation between the ring 10 and the first pneumatic rod 11 can limit the baffle 13 and the first cushion block 14, increasing the friction between the baffle 13 and the first cushion block 14, so that they will not rotate together with the rotating shaft 15 under the action of impurities between the blades 20 during the operation of the device.

[0030] Working principle: When using this easy-to-install rotary tiller, first, when connecting the device to the rear end of the tractor, directly connect the connecting seat 2 to the tractor. After fixing, compress the telescopic rod 5 and align it with the transmission shaft of the tractor. After releasing, it will reset under the action of the spring 6. Finally, turn the external threaded pipe 7 to connect it to the internal threaded pipe placed on the transmission shaft of the tractor, which can improve the convenience of the device and reduce the labor intensity of workers; secondly, after installing the cutter group, install the baffle 13 and the first cushion block 14 on the mounting rod 12 according to the spacing between the blades 20. And during installation, the first cushion block 14 needs to be installed above the blade 20, and the baffle 13 needs to be installed above the second cushion block 21. In this way, during operation, the impurities between the blades 20 can be removed by the baffle 13, thereby improving the working efficiency of the device; finally, before working, first select the appropriate number of cutter discs 19 and second cushion blocks 21 according to the working requirements. When installing the second cushion block 21 on the rotating shaft 15, the screw 23 needs to be installed on the second cushion block 21 first, and then the screw 23 is aligned with the second chute 22 and inserted. In this way, the second cushion block 21 can be fixed by the screw 23, and thus the blade 20 can be fixed by the second cushion block 21; after all installations are completed, first insert the rotating shaft 15 into the middle of the mounting frame 1, and then push the top block 18. When the top block 18 is aligned with the rotating shaft 15, let go, and the top block 18 can be reset and the rotating shaft 15 can be fixed by the second pneumatic rod 17. In this way, the installation can be completed and the work can start, thereby simplifying the work process and reducing the labor intensity of workers. This is the working principle of this easy-to-install rotary tiller.

Claims

1. A rotary tiller that is easy to install, comprising a mounting frame (1), characterized in that: A connecting seat (2) is fixedly arranged at the middle of the upper end of the mounting frame (1), and a gear box (3) is arranged inside the connecting seat (2); the lower end of the gear box (3) is fixedly connected to the mounting frame (1), and a universal joint (4) is rotatably arranged on one side of the gear box (3); a telescopic rod (5) is fixedly arranged at the other end of the universal joint (4), and springs (6) are arranged around the telescopic rod (5); one end of the spring (6) is fixedly connected to the universal joint (4), and an externally threaded tube (7) is fixedly arranged at the other end of the spring (6).

2. A rotary tiller that is easy to install according to claim 1, characterized in that: The externally threaded tube (7) is slidably connected to the telescopic rod (5). A slide groove (8) is provided on the side of the mounting frame (1), and four slide grooves (8) are symmetrically arranged along the center line of the mounting frame (1). A stud bolt (9) is rotatably arranged inside the slide groove (8), and one end of the stud bolt (9) is matched with the slide groove (8), and a ring (10) is arranged on the outside of the other end of the stud bolt (9).

3. A rotary tiller that is easy to install according to claim 2, characterized in that: A pneumatic rod (11) is fixedly arranged at one end of the circular ring (10) away from the stud bolt (9), and a circular ring (10) is also fixedly arranged at the other end of the pneumatic rod (11). A mounting rod (12) is arranged inside the circular ring (10), and one end of the mounting rod (12) is meshed with one end of the stud bolt (9), and a baffle (13) is slidably arranged around the mounting rod (12).

4. A rotary tiller that is easy to install according to claim 3, characterized in that: A cushion block (14) is provided at the other end of the baffle (13), and the cushion block (14) is slidably connected to the mounting rod (12). A rotating shaft (15) is provided inside the mounting frame (1) below the mounting rod (12), and a mounting plate (16) is provided outside the rotating shaft (15). The mounting plate (16) is rotatably connected to the mounting frame (1), and pneumatic rods (17) are fixedly provided around the mounting plate (16).

5. A rotary tiller that is easy to install according to claim 4, characterized in that: There are four pneumatic rods (17) evenly distributed around the center of the mounting plate (16), and a top block (18) is fixedly arranged at the other end of the pneumatic rod (17). The top block (18) is slidably connected to the rotating shaft (15). A knife disc (19) is slidably arranged around the rotating shaft (15), and a blade (20) is rotatably arranged around the middle of the knife disc (19).

6. A rotary tiller that is easy to install according to claim 5, characterized in that: The blades (20) are evenly distributed in eight numbers around the center point of the cutter disc (19), and the rotating shaft (15) is provided with a second slide groove (22) around the four sides thereof, and the second slide groove (22) is evenly distributed in four numbers around the center of the rotating shaft (15), and the second slide groove (22) passes through the rotating shaft (15).

7. A rotary tiller that is easy to install according to claim 6, characterized in that: A screw (23) is slidably arranged inside the second slide groove (22), and a cushion block (21) is arranged on one side of the cutter disc (19), and the cushion block (21) is slidably connected to the rotating shaft (15), and the cushion block (21) is slidably connected to the screw (23).

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