Spiral earth cutting drill bit of nursery stock transplanter

Abstract

The utility model relates to the technical field of spiral drill bits, and discloses a nursery stock transplanter spiral earth cutting drill bit which comprises a plurality of sets of spiral blades and a drill bit body, the multiple sets of spiral blades are connected in the head-to-tail rotating direction, connecting cylinders are fixedly connected to the centers of the spiral blades, and a connecting rod is fixedly connected to the center of the drill bit body. A connecting head is arranged at the upper end of the connecting rod, mounting holes are formed in the centers of the connecting head and the connecting cylinder, the connecting rod sequentially penetrates through the mounting holes in the surfaces of the connecting cylinder and the connecting head, a fixing mechanism is arranged between the connecting rod and the connecting head, and limiting mechanisms are arranged among the drill bit, the connecting cylinder and the connecting head. The spiral blade and the drill bit are of a split structure, when the spiral blade or the drill bit is damaged, only the damaged portion needs to be replaced, overall replacement is not needed, use cost can be reduced, and waste is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of spiral drill bits, and in particular to a spiral earth-digging drill bit for a seedling transplanter. Background Art

[0002] The existing seedling transplanter can dig the soil at the root system of the seedling until the root ball of the seedling can be completely removed. At present, the seedling transplanter often uses a spiral drill bit to dig the soil. The spiral drill bit can not only penetrate into the soil layer, but also export the soil to achieve the purpose of digging out the soil around the root system of the seedling. The spiral drill bit is easily damaged by the harder rock when drilling the soil, and most of the existing spiral drill bits are integral and cannot be partially replaced, and the use cost is high. Therefore, a spiral digging drill bit for a seedling transplanter is proposed. Utility Model Content

[0003] In order to solve the problem that most existing spiral drill bits are integral, cannot be partially replaced, and have high cost of use, the present application provides a spiral digging drill bit for a seedling transplanter.

[0004] The present application provides a seedling transplanting machine spiral digging drill bit adopts the following technical solution:

[0005] A spiral digging drill bit for a seedling transplanter comprises a spiral blade and a drill bit, wherein the spiral blades are provided in a plurality of groups, and the plurality of groups of spiral blades are connected in rotational direction end to end, the spiral blades are fixedly connected with a connecting tube at the center, the drill bit is fixedly connected with a connecting rod at the center, a connecting head is provided at the upper end of the connecting rod, mounting holes are provided at the center of the connecting head and the connecting tube, the connecting rod passes through the mounting holes on the surfaces of the connecting tube and the connecting head in sequence, a fixing mechanism is provided between the connecting rod and the connecting head, and a limiting mechanism is provided between the drill bit, the connecting tube and the connecting head.

[0006] Preferably, the limiting mechanism includes a limiting rod fixedly mounted on the lower surface of the connecting head and the lower surface of the connecting tube, the upper surface of the connecting tube and the upper surface of the drill bit are both provided with limiting holes adapted to the limiting rod, and the limiting rod can be moved out of or into the limiting hole.

[0007] Preferably, the fixing mechanism comprises threaded holes formed at the upper ends of the connecting head and the connecting rod, the axial directions of the threaded holes are perpendicular to the axial directions of the connecting head and the connecting rod, and fixing bolts are inserted into the threaded holes.

[0008] Preferably, when the fixing bolt is inserted into the threaded holes on the connecting head and the connecting rod, the distance between the lower surface of the connecting head and the upper surface of the drill bit is equal to the total length of the connecting tube.

[0009] Preferably, a plurality of groups of auxiliary shovels are sequentially arranged on the outer edge of the spiral blade along its rotation direction.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] The spiral blade and the drill bit in the utility model are of a split structure. When the spiral blade or the drill bit is damaged, only the damaged part needs to be replaced without replacing the entire part, which can reduce the use cost and prevent waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0013] Figure 2 It is a schematic diagram of the structure of a part of the embodiment of the application;

[0014] Figure 3 is a schematic structural diagram of a drill bit and a connecting rod according to an embodiment of the application;

[0015] Figure 4 It is a schematic diagram of the structure of the connector of the application embodiment.

[0016] Explanation of the reference numerals: 1. Connecting head; 2. Spiral blade; 3. Drill bit; 4. Connecting tube; 5. Mounting hole; 6. Limiting hole; 7. Limiting rod; 8. Fixing bolt; 9. Connecting rod; 10. Threaded hole; 11. Auxiliary shovel. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-4 This application is described in further detail.

[0018] The embodiment of the present application discloses a spiral digging drill bit for a seedling transplanter, including a spiral blade 2 and a drill bit 3. The spiral blade 2 is provided in a plurality of groups, and the plurality of groups of spiral blades 2 are connected in rotational direction end to end. A connecting tube 4 is fixedly connected at the center of the spiral blade 2, a connecting rod 9 is fixedly connected at the center of the drill bit 3, a connecting head 1 is provided at the upper end of the connecting rod 9, mounting holes 5 are provided at the centers of the connecting head 1 and the connecting tube 4, the connecting rod 9 passes through the mounting holes 5 on the surfaces of the connecting tube 4 and the connecting head 1 in sequence, a fixing mechanism is provided between the connecting rod 9 and the connecting head 1, and a limiting mechanism is provided between the drill bit 3, the connecting tube 4 and the connecting head 1.

[0019] Furthermore, the limiting mechanism includes a limiting rod 7 fixedly mounted on the lower surface of the connecting head 1 and the lower surface of the connecting tube 4. The upper surface of the connecting tube 4 and the upper surface of the drill bit 3 are both provided with a limiting hole 6 adapted to the limiting rod 7. The limiting rod 7 can be moved out of or into the limiting hole 6.

[0020] Furthermore, the fixing mechanism includes threaded holes 10 opened at the upper ends of the connecting head 1 and the connecting rod 9. The axial directions of the threaded holes 10 are perpendicular to the axial directions of the connecting head 1 and the connecting rod 9. The fixing bolts 8 are inserted into the threaded holes 10.

[0021] Furthermore, when the fixing bolt 8 is inserted into the threaded holes 10 on the connecting head 1 and the connecting rod 9 , the distance between the lower surface of the connecting head 1 and the upper surface of the drill bit 3 is equal to the total length of the connecting tube 4 .

[0022] Furthermore, a plurality of groups of auxiliary shovels 11 are sequentially arranged on the outer edge of the spiral blade 2 along its rotation direction. The auxiliary shovels 11 can break up soil clods and improve the digging efficiency of the device.

[0023] In this embodiment, the spiral blade 2 and the drill bit 3 are of a split structure. When the spiral blade 2 or the drill bit 3 is damaged, only the damaged part needs to be replaced without replacing the entire part, which can reduce the use cost and prevent waste. Specifically, the spiral blade 2 and the drill bit 3 are assembled as follows: when disassembling them, only the fixing bolt 8 needs to be unscrewed, the connecting rod 9 needs to be removed from the mounting hole 5 on the connecting head 1 and the connecting tube 4, and the limiting rod 7 on the connecting head 1 and the connecting tube 4 needs to be removed from the limiting hole 6 on the connecting tube 4 or the drill bit 3, so that the drill bit 3 and the spiral blade 2 can be disassembled. After replacing the damaged part, the drill bit 3 and the spiral blade 2 can be assembled by reversing the above steps.

[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0025] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spiral earth-digging drill bit for a seedling transplanter, comprising a spiral blade (2) and a drill bit (3), characterized in that: The spiral blades (2) are provided in a plurality of groups, and the plurality of groups of spiral blades (2) are connected in rotational direction from head to tail. The spiral blades (2) are fixedly connected at the center with a connecting tube (4). The drill bit (3) is fixedly connected at the center with a connecting rod (9). A connecting head (1) is provided at the upper end of the connecting rod (9). The connecting head (1) and the connecting tube (4) are provided with mounting holes (5) at the center. The connecting rod (9) passes through the mounting holes (5) on the surfaces of the connecting tube (4) and the connecting head (1) in sequence. A fixing mechanism is provided between the connecting rod (9) and the connecting head (1). A limiting mechanism is provided between the drill bit (3), the connecting tube (4) and the connecting head (1).

2. The spiral earth-digging drill bit for a seedling transplanter according to claim 1, characterized in that: The limiting mechanism comprises a limiting rod (7) fixedly mounted on the lower surface of the connecting head (1) and the lower surface of the connecting tube (4); the upper surface of the connecting tube (4) and the upper surface of the drill bit (3) are both provided with a limiting hole (6) adapted to the limiting rod (7); and the limiting rod (7) can be moved out of or into the limiting hole (6).

3. The spiral earth-digging drill bit for a seedling transplanter according to claim 1, characterized in that: The fixing mechanism comprises a threaded hole (10) formed at the upper end of the connecting head (1) and the connecting rod (9), the axial direction of the threaded hole (10) being perpendicular to the axial direction of the connecting head (1) and the connecting rod (9), and a fixing bolt (8) being inserted into the threaded hole (10).

4. The spiral earth-digging drill bit for a seedling transplanter according to claim 3, characterized in that: When the fixing bolt (8) is inserted into the threaded holes (10) on the connecting head (1) and the connecting rod (9), the distance between the lower surface of the connecting head (1) and the upper surface of the drill bit (3) is equal to the total length of the connecting tube (4).

5. The spiral earth-digging drill bit for a seedling transplanter according to claim 1, characterized in that: The outer edge of the spiral blade (2) is provided with a plurality of groups of auxiliary shovels (11) in sequence along the rotation direction thereof.

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