C-shaped ditching knife mechanism

Abstract

The utility model relates to the technical field of C-shaped furrowing cutters, in particular to a C-shaped furrowing cutter mechanism, which comprises a cutter head, a plurality of fixing grooves, furrowing cutter bodies, fixing blocks and a positioning mechanism, the side wall of the cutter head is fixedly provided with a plurality of fixing grooves, the furrowing cutter bodies are arranged on one sides of the fixing grooves, the fixing blocks are fixedly arranged on the furrowing cutter bodies, the fixing block can extend into the fixing groove in a sliding mode, the fixing block is matched with the fixing groove in shape, and the positioning mechanism is arranged in the cutter head and used for matching the fixing block with the fixing groove in shape. Therefore, the situation that the ditching cutter body is replaced through movement of the positioning block is avoided, the position of the ditching cutter body is adjusted through cooperation of the positioning block and different positioning through grooves, and the problem that in the related technology, the ditching cutter replacement efficiency and the position adjusting efficiency are low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of C-shaped ditching knives, and particularly relates to a C-shaped ditching knife mechanism. Background Art

[0002] Agricultural machinery refers to various machinery used in the processes of crop planting and livestock husbandry, as well as the primary processing and treatment of agricultural and livestock products. With the development of society and the progress of technology, more and more automated mechanical equipment has gradually replaced manual labor, improving agricultural efficiency.

[0003] In planting machinery, seeders and planters are the most common, greatly improving planting efficiency. An indispensable step in the operation of a seeder is ditching, and this step needs to rely on a C-shaped ditching knife. Due to the different soil components and sown materials, if good sowing effects are required, there are often relatively high requirements for the ditching depth. Moreover, the C-shaped ditching knife will experience a certain degree of wear during the ditching process. However, most of the C-shaped ditching knives on the market are fixed to the cutter head through bolts. After the C-shaped ditching knife is damaged due to wear, it is necessary to sequentially rotate multiple bolts to replace the ditching knife, which is time-consuming and laborious. In addition, fixing with bolts is not convenient for diameter adjustment, or it is necessary to replace the cutter head to adjust the diameter. Since the installation of the cutter head is relatively cumbersome, replacing the cutter head has also become a complicated matter. In this way, not only is the operation cumbersome and the efficiency low, but if the ditching depth does not meet the requirements, it will also affect the seed survival rate, greatly reducing the sowing efficiency and reducing the income of farmers to a certain extent. Content of the Utility Model

[0004] The utility model provides a C-shaped ditching knife mechanism, which solves the problem of low efficiency in replacing and adjusting the position of the ditching knife in the related art.

[0005] The technical solution of the utility model is as follows: A C-shaped ditching knife mechanism includes a cutter head, a fixing groove, a ditching knife body, a fixing block, and a positioning mechanism;

[0006] A plurality of the fixing grooves are fixedly arranged on the side wall of the cutter head;

[0007] The ditching knife body is arranged on one side of the fixing groove;

[0008] The fixing block is fixedly arranged on the ditching knife body;

[0009] Among them, the fixing block can slide into the fixing groove, and the fixing block is adapted to the shape of the fixing groove;

[0010] The positioning mechanism is arranged in the cutter head and is used to adapt the fixing block to the shape of the fixing groove.

[0011] Preferably, the positioning mechanism includes:

[0012] Positioning through slots, which are opened on the opposite side walls of the fixed block;

[0013] Positioning slots, which are opened on the side walls on both sides of the fixed slot;

[0014] Positioning blocks, which are slidably arranged in the positioning slots, and the positioning blocks are adapted to the shapes of the positioning through slots;

[0015] Relative movement mechanism, which is arranged in the cutter head and is used to control the relative movement of the two positioning blocks.

[0016] Furthermore, a plurality of positioning through slots are provided, and the plurality of positioning through slots are symmetrically opened on the opposite side walls of the fixed block.

[0017] Still further, the relative movement mechanism includes:

[0018] A first cavity, which is opened on one side of the positioning slot, and the positioning slot communicates with the first cavity;

[0019] Positioning seats, two positioning seats are slidably arranged in the first cavity, and the positioning seats are fixedly connected with the positioning blocks;

[0020] Relative movement components, which are arranged in the first cavity and are used to control the relative movement of the two positioning seats.

[0021] Even further, the relative movement components include:

[0022] A bidirectional screw, which is rotatably arranged in the first cavity, and threaded tubes are sleeved on both ends of the side wall of the bidirectional screw through threaded cooperation;

[0023] Positioning rods, which are hinged between the threaded tubes and the positioning seats;

[0024] A driving mechanism, which is arranged in the cutter head and is used to control the synchronous rotation of the plurality of bidirectional screws.

[0025] On the basis of the above solution, the driving mechanism includes:

[0026] A second cavity, which is opened in the cutter head;

[0027] First bevel gears, a plurality of first bevel gears are rotatably arranged on the side wall of the second cavity, and connecting rods are fixedly arranged between the first bevel gears and the bidirectional screws;

[0028] A driving component, which is arranged inside the cutter head and is used to control the synchronous rotation of a plurality of the first bevel gears.

[0029] On the basis of the above solution, the driving component includes:

[0030] A driving groove, which is opened on the cutter head, and a handwheel is arranged inside the driving groove;

[0031] A second bevel gear, which is rotatably arranged on the side wall of the second cavity and meshes with the first bevel gear;

[0032] A first driving port, which is opened between the bottom of the driving groove and the second cavity;

[0033] A second driving port, which is opened on the second bevel gear;

[0034] A driving column, which is arranged through the first driving port and the second driving port, the driving column is slidably connected to the side wall of the second driving port, one end of the driving column is fixedly connected to the handwheel, and a positioning disk is fixedly arranged at the other end of the driving column;

[0035] A limiting mechanism, which is arranged on the driving column and is used to limit the rotation angle of the driving column.

[0036] On the basis of the above solution, a sliding groove is opened on the side wall of the driving column, a sliding block is fixedly arranged on the side wall of the second driving port, and the sliding block extends into the sliding groove and is slidably connected to the side wall of the sliding groove.

[0037] On the basis of the above solution, the limiting mechanism includes:

[0038] A limiting groove, which is opened on the bottom of the driving groove;

[0039] A limiting block, which is fixedly arranged on the handwheel, and the limiting block is adapted to the shape of the limiting groove;

[0040] A supporting spring, which is sleeved on the driving column, and both ends of the supporting spring are in contact with the positioning disk and the second bevel gear respectively.

[0041] On the basis of the above solution, anti-slip lines are arranged on the side wall of the handwheel.

[0042] The working principle and beneficial effects of the present utility model are as follows:

[0043] 1. In the present utility model, through the arrangement of the positioning mechanism, it is convenient to control the movement of the positioning block through the operation of the relative movement mechanism, so as to facilitate the fixation of the ditching knife body when the positioning block extends into the positioning through groove, and replace the ditching knife body when the positioning block retracts into the positioning groove. At the same time, during the process of aligning different positioning through grooves with the positioning grooves and inserting the positioning block into the positioning through groove, the position adjustment of the ditching knife body can be realized through the cooperation between the positioning block and different positioning through grooves;

[0044] 2. In the present utility model, through the arrangement of the relative movement mechanism, the rotation of the handwheel can drive the driving column to rotate, and then drive the second bevel gear to rotate through the cooperation between the slider and the chute. At the same time, drive the first bevel gear, the connecting rod and the bidirectional screw to rotate through the meshing of the second bevel gear and the first bevel gear. Thus, two threaded pipes can be driven to move relatively through the threaded cooperation between the bidirectional screw and the threaded pipe, and then drive the positioning seat and the positioning block to move relatively through the positioning rod;

[0045] 3. In the present utility model, through the arrangement of the limiting mechanism, after the ditching knife body is fixed and the handwheel is released, the limiting block can be driven to extend into the limiting groove under the action of the supporting spring, so as to facilitate the limitation of the rotation angle of the driving column and the handwheel through the cooperation between the limiting block and the limiting groove, thereby avoiding the loosening of the ditching knife body in the fixing groove during use;

[0046] 4. In the present utility model, through the arrangement of the cutter head, the fixing groove, the ditching knife body, the fixing block and the positioning mechanism, it is convenient to control the movement of the positioning block through the movement and rotation of the handwheel, so as to avoid replacing the ditching knife body through the movement of the positioning block, and then realize the position adjustment of the ditching knife body through the cooperation between the positioning block and different positioning through grooves, thereby solving the problem of low efficiency in replacing and adjusting the position of the ditching knife in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments.

[0048] Figure 1 is a schematic structural diagram of the present utility model;

[0049] Figure 2 is a schematic sectional structure diagram of the present utility model;

[0050] Figure 3 is a schematic sectional structure diagram at the first cavity of the present utility model;

[0051] Figure 4 is a schematic sectional structure diagram at the relative movement mechanism of the present utility model;

[0052] Figure 5Schematic cross-sectional structure diagram of the driving mechanism of the present utility model;

[0053] Figure 6 Schematic structure diagram of the positioning mechanism of the present utility model.

[0054] In the figure: 1. Cutter head; 2. Body of ditching cutter; 3. Fixed block; 4. Positioning through slot; 5. Positioning slot; 6. Positioning block; 7. Positioning seat; 8. Bidirectional screw; 9. Threaded pipe; 10. Positioning rod; 11. First bevel gear; 12. Second bevel gear; 13. Driving column; 14. Limiting block; 15. Supporting spring. Specific embodiments

[0055] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0056] As Figures 1-6 shown, this embodiment proposes a C-shaped ditching cutter mechanism, including a cutter head 1, a fixed groove, a body of ditching cutter 2, a fixed block 3, and a positioning mechanism. A plurality of fixed grooves are fixedly arranged on the side wall of the cutter head 1. The body of ditching cutter 2 is arranged on one side of the fixed groove. The fixed block 3 is fixedly arranged on the body of ditching cutter 2. Among them, the fixed block 3 can slide into the fixed groove, and the fixed block 3 and the fixed groove are adapted in shape. The positioning mechanism is arranged in the cutter head 1 and is used for the fixed block 3 to be adapted in shape with the fixed groove.

[0057] Referring to Figures 2-6 , the positioning mechanism includes a positioning through slot 4, a positioning slot 5, a positioning block 6, and a relative movement mechanism. The positioning through slot 4 is opened on the opposite side walls of the fixed block 3. The positioning slot 5 is opened on the opposite side walls of the fixed groove. The positioning block 6 is slidably arranged in the positioning slot 5, and the positioning block 6 and the positioning through slot 4 are adapted in shape. The relative movement mechanism is arranged in the cutter head 1 and is used to control the relative movement of the two positioning blocks 6. The positioning through slot 4 is provided in plurality, and a plurality of positioning through slots 4 are symmetrically opened on the opposite side walls of the fixed block 3.

[0058] Specifically, by the operation of the relative movement mechanism, the positioning block 6 is controlled to move, so as to facilitate the fixing of the body of ditching cutter 2 when the positioning block 6 extends into the positioning through slot 4, and to replace the body of ditching cutter 2 when the positioning block 6 retracts into the positioning slot 5. At the same time, in the process of aligning different positioning through slots 4 with the positioning slot 5 and extending the positioning block 6 into the positioning through slot 4, the position of the body of ditching cutter 2 can be adjusted through the cooperation of the positioning block 6 and different positioning through slots 4, and thus the diameter of the cutter head 1 can be adjusted.

[0059] Referring to Figures 4-6 , the relative movement mechanism includes a first cavity, a positioning seat 7 and a relative movement component. The first cavity is opened on one side of the positioning groove 5. The positioning groove 5 communicates with the first cavity. Two positioning seats 7 are slidably arranged in the first cavity. The positioning seat 7 is fixedly connected with the positioning block 6. The relative movement component is arranged in the first cavity and is used to control the relative movement of the two positioning seats 7. The relative movement component includes a bidirectional screw 8, a positioning rod 10 and a driving mechanism. The bidirectional screw 8 is rotatably arranged in the first cavity. Threaded tubes 9 are sleeved on both ends of the side wall of the bidirectional screw 8 through thread fit. The positioning rod 10 is hinged between the threaded tube 9 and the positioning seat 7. The driving mechanism is arranged in the cutter head 1 and is used to control the synchronous rotation of a plurality of bidirectional screws 8. The driving mechanism includes a second cavity, a first bevel gear 11 and a driving component. The second cavity is opened in the cutter head 1. A plurality of first bevel gears 11 are rotatably arranged on the side wall of the second cavity. A connecting rod is fixedly arranged between the first bevel gear 11 and the bidirectional screw 8. The driving component is arranged in the cutter head 1 and is used to control the synchronous rotation of a plurality of first bevel gears 11. The driving component includes a driving groove, a second bevel gear 12, a first driving port, a second driving port, a driving column 13 and a limiting mechanism. The driving groove is opened on the cutter head 1. A handwheel is arranged in the driving groove. The second bevel gear 12 is rotatably arranged on the side wall of the second cavity. The second bevel gear 12 meshes with the first bevel gear 11. The first driving port is opened between the bottom of the driving groove and the second cavity. The second driving port is opened on the second bevel gear 12. The driving column 13 is arranged through the first driving port and the second driving port. The driving column 13 is slidably connected with the side wall of the second driving port. One end of the driving column 13 is fixedly connected with the handwheel. A positioning disc is fixedly arranged at the other end of the driving column 13. The limiting mechanism is arranged on the driving column 13 and is used to limit the rotation angle of the driving column 13. A sliding groove is opened on the side wall of the driving column 13. A sliding block is fixedly arranged on the side wall of the second driving port. The sliding block extends into the sliding groove and is slidably connected with the side wall of the sliding groove. The side wall of the handwheel is provided with anti-slip lines.

[0060] Specifically, the operator rotates the handwheel. The rotation of the handwheel can drive the driving column 13 to rotate, and then drive the second bevel gear 12 to rotate through the cooperation of the sliding block and the sliding groove. At the same time, drive the first bevel gear 11, the connecting rod and the bidirectional screw 8 to rotate through the meshing of the second bevel gear 12 and the first bevel gear 11. Thus, the relative movement of the two threaded tubes 9 can be driven through the thread fit of the bidirectional screw 8 and the threaded tube 9, and then the positioning seat 7 and the positioning block 6 can be pulled to move relatively through the positioning rod 10.

[0061] Referring to Figure 5 and Figure 6, the limiting mechanism includes a limiting groove, a limiting block 14, and a support spring 15. The limiting groove is opened at the bottom of the driving groove. The limiting block 14 is fixedly arranged on the handwheel. The limiting block 14 is adapted to the shape of the limiting groove. The support spring 15 is sleeved on the driving column 13, and both ends of the support spring 15 are in contact with the positioning disk and the second bevel gear 12 respectively.

[0062] Specifically, after the fixing of the trenching tool body 2 is completed and the handwheel is loosened, the limiting block 14 can be driven to extend into the limiting groove under the action of the support spring 15, so as to facilitate the limitation of the rotation angle of the driving column 13 and the handwheel through the cooperation between the limiting block 14 and the limiting groove, thereby preventing the trenching tool body 2 from becoming loose in the fixing groove during use.

[0063] In this embodiment, during use, the operator pulls the handwheel, so that the limiting block 14 can be driven to disengage from the limiting groove. Then, the fixing block 3 is inserted into the fixing groove and the handwheel is rotated. The rotation of the handwheel can drive the driving column 13 to rotate, and then drive the second bevel gear 12 to rotate through the cooperation between the slider and the chute. At the same time, the first bevel gear 11, the connecting rod, and the bidirectional screw 8 are driven to rotate through the meshing of the second bevel gear 12 and the first bevel gear 11. Thus, the two threaded pipes 9 can be driven to move relatively through the threaded cooperation between the bidirectional screw 8 and the threaded pipes 9. Then, the positioning seat 7 and the positioning block 6 are pulled to move relatively through the positioning rod 10, so that the positioning block 6 can extend into the positioning through groove 4 to fix the trenching tool body 2. After that, the operator loosens the handwheel, and the limiting block 14 can be driven to extend into the limiting groove under the action of the support spring 15, so as to facilitate the limitation of the rotation angle of the driving column 13 and the handwheel through the cooperation between the limiting block 14 and the limiting groove, thereby preventing the trenching tool body 2 from becoming loose in the fixing groove during use.

[0064] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A C-type ditching knife mechanism, characterized in that, Comprising: Cutting disc (1); Fixing grooves, a plurality of the fixing grooves are fixedly arranged on the side wall of the cutting disc (1); Ditch-opening knife body (2), the ditch-opening knife body (2) is arranged on one side of the fixing groove; Fixing block (3), the fixing block (3) is fixedly arranged on the ditch-opening knife body (2); Wherein, the fixing block (3) can slide into the fixing groove, and the fixing block (3) is adapted to the shape of the fixing groove; Positioning mechanism, the positioning mechanism is arranged in the cutting disc (1) and is used for adapting the fixing block (3) to the shape of the fixing groove.

2. The C-shaped ditching knife mechanism according to claim 1, characterized in that, The positioning mechanism includes: Positioning through grooves (4), the positioning through grooves (4) are opened on the opposite side walls of the fixing block (3); Positioning grooves (5), the positioning grooves (5) are opened on the side walls on both sides of the fixing groove; Positioning blocks (6), the positioning blocks (6) are slidably arranged in the positioning grooves (5), and the positioning blocks (6) are adapted to the shape of the positioning through grooves (4) Relative movement mechanism, the relative movement mechanism is arranged in the cutting disc (1) and is used for controlling the relative movement of the two positioning blocks (6).

3. The C-type ditching knife mechanism according to claim 2, characterized in that A plurality of the positioning through grooves (4) are provided, and the plurality of the positioning through grooves (4) are symmetrically opened on the opposite side walls of the fixing block (3).

4. The C-type ditching knife mechanism according to claim 3, characterized in that, The relative movement mechanism includes: First cavity, the first cavity is opened on one side of the positioning groove (5), and the positioning groove (5) communicates with the first cavity; Positioning seats (7), two of the positioning seats (7) are slidably arranged in the first cavity, and the positioning seats (7) are fixedly connected with the positioning blocks (6); Relative movement component, the relative movement component is arranged in the first cavity and is used for controlling the relative movement of the two positioning seats (7).

5. The C-type ditching knife mechanism according to claim 4, wherein, The relative movement component includes: Bidirectional screw (8), the bidirectional screw (8) is rotatably arranged in the first cavity, and both ends of the side wall of the bidirectional screw (8) are sleeved with threaded tubes (9) through thread fit; Positioning rod (10), the positioning rod (10) is hinged between the threaded tube (9) and the positioning seat (7); Driving mechanism, the driving mechanism is arranged in the cutting disc (1) and is used for controlling the synchronous rotation of the plurality of bidirectional screws (8).

6. The C-type ditching knife mechanism according to claim 5, characterized in that, The driving mechanism includes: Second cavity, the second cavity is opened in the cutting disc (1); First bevel gears (11), a plurality of the first bevel gears (11) are rotatably arranged on the side wall of the second cavity, and a connecting rod is fixedly arranged between the first bevel gears (11) and the bidirectional screw (8); Driving component, the driving component is arranged in the cutting disc (1) and is used for controlling the synchronous rotation of the plurality of first bevel gears (11).

7. The C-shaped ditching knife mechanism according to claim 6, characterized in that, The driving component includes: Driving groove, the driving groove is opened on the cutting disc (1), and a handwheel is arranged in the driving groove; Second bevel gear (12), the second bevel gear (12) is rotatably arranged on the side wall of the second cavity, and the second bevel gear (12) meshes with the first bevel gear (11); The first driving port is opened between the bottom of the driving groove and the second cavity; The second driving port is opened on the second bevel gear (12); A driving column (13) is disposed through the first driving port and the second driving port. The driving column (13) is slidably connected to the side wall of the second driving port. One end of the driving column (13) is fixedly connected to the handwheel, and a positioning disk is fixedly provided at the other end of the driving column (13); A limiting mechanism is disposed on the driving column (13) for limiting the rotation angle of the driving column (13).

8. A C-shaped ditching knife mechanism according to claim 7, characterized in that, A sliding groove is formed in the side wall of the driving column (13), and a sliding block is fixedly provided on the side wall of the second driving port. The sliding block extends into the sliding groove and is slidably connected to the side wall of the sliding groove.

9. The C-type ditching knife mechanism according to claim 8, characterized in that, The limiting mechanism includes: A limiting groove is opened at the bottom of the driving groove; A limiting block (14) is fixedly provided on the handwheel, and the limiting block (14) is adapted to the shape of the limiting groove; A support spring (15) is sleeved on the driving column (13), and both ends of the support spring (15) are in contact with the positioning disk and the second bevel gear (12) respectively.

10. The C-type ditching knife mechanism according to claim 9, characterized in that, The side wall of the handwheel is provided with anti-slip lines.

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