Rake tooth mechanism of driving rake

Abstract

The utility model relates to the technical field of fixing supports, in particular to a rake tooth mechanism of a driving rake. The harrow tooth comprises a driving shaft and a harrow tooth body, a fixing device is arranged outside the driving shaft and comprises a fixing seat, one end of the fixing seat is fixedly connected with the driving shaft, two rubber pads are fixedly connected to one end of the fixing seat, one side of each rubber pad is in sliding connection with the harrow tooth body, and the other side of each rubber pad is in sliding connection with the harrow tooth body. One end of the fixing seat is fixedly connected with two limiting blocks, the arc surfaces of the limiting blocks are in sliding connection with the rake tooth body, one end of the fixing seat is fixedly connected with a fixing rod, the arc surface of the fixing rod is provided with a clamping groove, and the arc surface of the fixing rod is in sliding connection with a base. The problems that harrow teeth of a traditional driving harrow are assembled in a bolt fastening mode, due to the fact that bolt heads are prone to abrasion, the harrow teeth are difficult to disassemble, assemble and replace, time and labor are wasted, bolts are prone to loosening, and the assembled harrow teeth fall off and are low in reliability are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing brackets, in particular to a tooth mechanism of a driving harrow. Background Art

[0002] Due to its super soil crushing ability and wide working width, the driving harrow can form good seeding conditions in only one pass, providing reliable conditions of flatness, looseness, and firmness from top to bottom for seeding, and greatly improving the tillage efficiency. Therefore, the driving harrow is used more and more widely.

[0003] In the prior art, the teeth of the driving harrow are mostly assembled by bolts. The bolts fix the teeth on the tooth fixing seat. Since the bolt heads are easily worn, it is difficult and time-consuming to disassemble, install, and replace the teeth. Moreover, the bolts are prone to looseness, causing the assembled teeth to fall off, with low reliability. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art that the teeth of the traditional driving harrow are mostly assembled by bolts. Since the bolt heads are easily worn, it is difficult and time-consuming to disassemble, install, and replace the teeth. Moreover, the bolts are prone to looseness, causing the assembled teeth to fall off, with low reliability, and to provide a tooth mechanism of a driving harrow.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A tooth mechanism of a driving harrow includes a driving shaft and a tooth body. A fixing device is arranged outside the driving shaft. The fixing device includes a fixing seat. One end of the fixing seat is fixedly connected to the driving shaft. Two rubber pads are fixedly connected to one end of the fixing seat. One side of the rubber pad is slidably connected to the tooth body. Two limiting blocks are fixedly connected to one end of the fixing seat. The arc surface of the limiting block is slidably connected to the tooth body. A fixing rod is fixedly connected to one end of the fixing seat. A clamping groove is formed on the arc surface of the fixing rod. A base is slidably connected to the arc surface of the fixing rod. A T-shaped groove is formed at one end of the base. A T-shaped block is slidably connected inside the T-shaped groove. A clamping plate is fixedly connected to one side of the T-shaped block. The outside of the clamping plate is slidably connected to the clamping groove.

[0006] The effect achieved by the above components is that after the clamping plate is completely away from the clamping groove, the limitation on the base is eliminated, and the base can be removed from the fixing rod.

[0007] Preferably, a clamping hole is formed on one side of the clamping plate. A clamping rod is slidably connected inside the clamping hole.

[0008] The effect achieved by the above components is that the clamping rod slides inside the clamping hole.

[0009] Preferably, one end of the clamping rod is fixedly connected with a fixing block, one side of the fixing block is fixedly connected with a telescopic rod, and one end of the telescopic rod is fixedly connected with the base.

[0010] The effect achieved by the above components is: the fixing block moves to drive the clamping rod to move, so that the telescopic rod is in a stretched or contracted state.

[0011] Preferably, a spring is sleeved on the arc surface of the telescopic rod, and both ends of the spring are fixedly connected with the base and the fixing block respectively.

[0012] The effect achieved by the above components is: the telescopic rod prevents the spring from deforming during the stretching or contracting process.

[0013] Preferably, a shielding device is provided at one end of the base. The shielding device includes a circular ring. One end of the circular ring is fixedly connected with the base, and a T-shaped circular groove is opened at one end of the circular ring.

[0014] The effect achieved by the above components is: the T-shaped circular groove is opened on the circular ring.

[0015] Preferably, two guiding openings are opened at one end of the circular ring.

[0016] The effect achieved by the above components is: the guiding openings are opened on the circular ring.

[0017] Preferably, a rubber block is slidably connected inside the guiding opening, and the outer parts of the two rubber blocks are slidably connected with the T-shaped circular groove.

[0018] The effect achieved by the above components is: the rubber block slides in the T-shaped circular groove.

[0019] Preferably, a shielding plate is fixedly connected to one side of the two rubber blocks.

[0020] The effect achieved by the above components is: the shielding plate moves to drive the rubber block to move.

[0021] Preferably, a handle is fixedly connected to one end of the shielding plate, and the cross-section of the handle is in a "U" shape.

[0022] The effect achieved by the above components is: the handle rotates to drive the shielding plate to rotate.

[0023] In summary, the beneficial effects of the present utility model are:

[0024] In the present utility model, through the fixing device, when it is necessary to assemble the rake teeth, the clamping plate is completely moved away from the inside of the clamping groove, the base is removed from the fixing rod, and then the rake tooth body to be assembled is sleeved on the limiting block. Then, the base is reassembled with the fixing rod. Through the fixing device, the problem that the assembly of the rake teeth of the traditional driving rake is mostly fastened by bolts is solved. Since the bolt heads are easily worn, it is difficult to disassemble, install and replace the rake teeth, which is time-consuming and laborious. Moreover, the bolts are easily loosened, causing the assembled rake teeth to fall off and having low reliability.

[0025] In the present utility model, through the shielding device, when it is not convenient to disassemble and assemble the base due to soil adhering to the base, the rubber block slides into the T-shaped circular groove from the guiding port, and the shielding plate drives the rubber block to slide in the T-shaped groove until it is far away from the guiding port. Through the shielding device, the problem that soil will adhere to the base during the use of the rake teeth of the traditional driving rake, making it inconvenient to disassemble and assemble the base, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0027] Figure 2 is a structural schematic diagram of the fixing structure of the present utility model;

[0028] Figure 3 is a sectional structural schematic diagram of the three-dimensional structure of the present utility model;

[0029] Figure 4 is a structural schematic diagram of the shielding structure of the present utility model;

[0030] Figure 5 is a sectional structural schematic diagram of the fixing structure of the present utility model;

[0031] Figure 6 is a partial exploded structural schematic diagram of the shielding structure of the present utility model.

[0032] Legend: 1, drive shaft; 2, fixing device; 201, fixing base; 202, limiting block; 203, rubber pad; 204, fixing rod; 205, base; 206, clamping groove; 207, T-shaped groove; 208, T-shaped block; 209, clamping plate; 210, clamping rod; 211, fixing block; 212, telescopic rod; 213, spring; 214, clamping hole; 3, shielding device; 31, ring; 32, T-shaped circular groove; 33, guiding port; 34, rubber block; 35, shielding plate; 36, handle; 4, rake tooth body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Refer to Figure 1 and Figure 3As shown in the figure, the present utility model provides a technical solution: a rake tooth mechanism of a driving rake, which includes a driving shaft 1 and a rake tooth body 4. A fixing device 2 is provided outside the driving shaft 1, and a shielding device 3 is provided at one end of the base 205.

[0034] Next, specifically describe the specific settings and functions of its fixing device 2 and supporting device 3.

[0035] Refer to Figure 2 and Figure 5 As shown in the figure, in this embodiment: The fixing device 2 includes a fixing seat 201. One end of the fixing seat 201 is fixedly connected to the driving shaft 1. Two rubber pads 203 are fixedly connected to one end of the fixing seat 201. One side of the rubber pad 203 is slidably connected to the rake tooth body 4. Two limiting blocks 202 are fixedly connected to one end of the fixing seat 201. The arc surface of the limiting block 202 is slidably connected to the rake tooth body 4. A fixing rod 204 is fixedly connected to one end of the fixing seat 201. A card slot 206 is provided on the arc surface of the fixing rod 204. A base 205 is slidably connected to the arc surface of the fixing rod 204. A T-shaped slot 207 is provided at one end of the base 205. A T-shaped block 208 is slidably connected inside the T-shaped slot 207. A clamping plate 209 is fixedly connected to one side of the T-shaped block 208. The outside of the clamping plate 209 is slidably connected to the card slot 206. After the clamping plate 209 is completely away from the card slot 206, the limit on the base 205 is eliminated, and the base 205 can be removed from the fixing rod 204. A card hole 214 is provided on one side of the clamping plate 209. A clamping rod 210 is slidably connected inside the card hole 214. The effect of the clamping rod 210 sliding in the card hole 214 is achieved. One end of the clamping rod 210 is fixedly connected to a fixing block 211. One side of the fixing block 211 is fixedly connected to a telescopic rod 212. One end of the telescopic rod 212 is fixedly connected to the base 205. The effect that the movement of the fixing block 211 drives the clamping rod 210 to move, so that the telescopic rod 212 is in a stretched or contracted state is achieved. A spring 213 is sleeved on the arc surface of the telescopic rod 212. The two ends of the spring 213 are respectively fixedly connected to the base 205 and the fixing block 211. The effect that the telescopic rod 212 prevents the spring 213 from deforming during the stretching or contracting process is achieved.

[0036] Refer to Figure 4 and Figure 6As shown in the figure, in this embodiment: The shielding device 3 includes a circular ring 31. One end of the circular ring 31 is fixedly connected to the base 205, and a T-shaped circular groove 32 is provided at one end of the circular ring 31. The effect that the T-shaped circular groove 32 is opened on the circular ring 31 is achieved. Two guiding openings 33 are provided at one end of the circular ring 31. The effect that the guiding openings 33 are opened on the circular ring 31 is achieved. A rubber block 34 is slidably connected inside the guiding opening 33, and the outside of the two rubber blocks 34 is slidably connected to the T-shaped circular groove 32. The effect that the rubber block 34 slides in the T-shaped circular groove 32 is achieved. A shielding plate 35 is fixedly connected to one side of the two rubber blocks 34. The effect that the movement of the shielding plate 35 drives the movement of the rubber block 34 is achieved. A handle 36 is fixedly connected to one end of the shielding plate 35, and the cross-section of the handle 36 is in a "U" shape. The effect that the rotation of the handle 36 drives the rotation of the shielding plate 35 is achieved.

[0037] Working principle: Through the fixing device 2, when it is necessary to assemble the rake teeth, the operator first moves the T-shaped block 208 away from the fixing rod 204, so that the clamping plate 209 is completely away from the inside of the clamping groove 206. After being completely away, the limit on the base 205 can be eliminated, and the base 205 is removed from the fixing rod 204. Then, the rake tooth body 4 to be assembled is sleeved on the limit block 202 to form a guiding effect on the rake tooth body 4. Then, the base 205 is reassembled with the fixing rod 204, and the clamping plate 209 is slid into the clamping groove 206 to complete the limit fixation of the base 205. Through the fixing device 2, the problem that the assembly of the rake teeth of the traditional driving rake is mostly bolt fastening, the rake teeth are fixed on the rake tooth fixing seat 201 by bolts, and due to the easy wear of the bolt heads, it is difficult to disassemble, install and replace the rake teeth, time-consuming and laborious, and the bolts are easy to loosen, causing the assembled rake teeth to fall off and having low reliability is solved.

[0038] Through the shielding device 3, when it is necessary to prevent the soil from adhering to the base 205 during the use of the rake teeth and making it inconvenient to disassemble and assemble the base 205, the operator first moves the shielding plate 35 to face the circular ring 31, so that the rubber block 34 slides into the T-shaped circular groove 32 from the guiding opening 33. Then, the shielding plate 35 is rotated, and the shielding plate 35 drives the rubber block 34 to slide in the T-shaped groove 207. After sliding away from the guiding opening 33, the base 205 can be shielded. Through the shielding device 3, the problem that during the use of the rake teeth of the traditional driving rake, the soil will adhere to the base 205, making it inconvenient to disassemble and assemble the base 205 and affecting the replacement efficiency of the rake teeth is solved.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

Claims

1. A rake tooth mechanism for driving a rake, comprising a drive shaft (1) and a rake tooth body (4), characterized in that: A fixing device (2) is provided on the outside of the driving shaft (1), and the fixing device (2) comprises a fixing seat (201), one end of the fixing seat (201) is fixedly connected to the driving shaft (1), one end of the fixing seat (201) is fixedly connected to two rubber pads (203), one side of the rubber pad (203) is slidably connected to the rake tooth body (4), one end of the fixing seat (201) is fixedly connected to two limit blocks (202), the arc surface of the limit block (202) is slidably connected to the rake tooth body (4), and the fixing seat (201) is fixedly connected to two limit blocks (202). One end of the fixing seat (201) is fixedly connected to a fixing rod (204), a clamping groove (206) is provided on the circular arc surface of the fixing rod (204), a base (205) is slidably connected to the circular arc surface of the fixing rod (204), one end of the base (205) is provided with a T-shaped groove (207), a T-shaped block (208) is slidably connected inside the T-shaped groove (207), a clamping plate (209) is fixedly connected to one side of the T-shaped block (208), and the outside of the clamping plate (209) is slidably connected to the clamping groove (206).

2. A rake tooth mechanism for driving a rake according to claim 1, characterized in that: A clamping hole (214) is provided on one side of the clamping plate (209), and a clamping rod (210) is slidably connected inside the clamping hole (214).

3. A rake tooth mechanism for driving a rake according to claim 2, characterized in that: One end of the clamping rod (210) is fixedly connected to a fixing block (211), one side of the fixing block (211) is fixedly connected to a telescopic rod (212), and one end of the telescopic rod (212) is fixedly connected to the base (205).

4. A rake tooth mechanism for driving a rake according to claim 3, characterized in that: The arc surface of the telescopic rod (212) is sleeved with a spring (213), and the two ends of the spring (213) are respectively fixedly connected to the base (205) and the fixing block (211).

5. A rake tooth mechanism for driving a rake according to claim 4, characterized in that: A shielding device (3) is provided at one end of the base (205), and the shielding device (3) comprises a circular ring (31). One end of the circular ring (31) is fixedly connected to the base (205), and one end of the circular ring (31) is provided with a T-shaped circular groove (32).

6. A rake tooth mechanism for driving a rake according to claim 5, characterized in that: One end of the circular ring (31) is provided with two guide openings (33).

7. A rake tooth mechanism for driving a rake according to claim 6, characterized in that: The interior of the guide opening (33) is slidably connected to a rubber block (34), and the exteriors of the two rubber blocks (34) are slidably connected to the T-shaped circular groove (32).

8. A rake tooth mechanism for driving a rake according to claim 7, characterized in that: A shielding plate (35) is fixedly connected to one side of the two rubber blocks (34).

9. A rake tooth mechanism for driving a rake according to claim 8, characterized in that: One end of the shielding plate (35) is fixedly connected to a handle (36), and the cross section of the handle (36) is U-shaped.

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