Harvester convenient to maintain

Abstract

The utility model relates to the technical field of harvesters, and discloses a harvester convenient to maintain, which comprises a harvester body and a harvesting arm, and the inner side of the harvesting arm is provided with a control part convenient for maintenance of a fixed piece on the inner side of the harvesting arm; according to the harvester convenient to maintain, the control box is toggled to rotate, when the control box rotates, the arc-shaped groove can be driven to rotate synchronously, the arc-shaped groove toggles the linkage rod, the linkage rod can drive the limiting block to slide in the limiting groove in the direction away from the inserting hole, and the limiting block is driven to move in the limiting groove. When the limiting block is not inserted into the inner side of the inserting hole any more, the control box is pushed towards the shaft rod at one end, so that the shaft rod at the other end is separated from the inner side of the control box through the connecting block connected with the connecting rod, and the shaft rods can be detached for maintenance and overhaul; and stirring teeth of a stirring plant arranged on the shaft rod can be taken down more easily for maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of harvester, concretely is a kind of harvester convenient to maintain. BACKGROUND

[0002] Harvester is a kind of agricultural machinery for harvesting crops (such as wheat, rice, corn, soybean, etc.), and the use of harvester is of great significance to improve agricultural production efficiency, reduce labor intensity of farmers and ensure food security. With the progress of science and technology, the performance and intelligent level of harvester are also continuously improved.

[0003] The existing harvesting arm of harvester is usually provided with a driving tooth for driving the harvested material, and the driving tooth will be deformed and damaged due to the attachment of harvested material on its surface after a long time of driving the harvested material. The shaft responsible for driving the driving tooth is usually long and not portable when disassembled, and cannot be disassembled and repaired in sections. SUMMARY

[0004] The utility model aims at providing a kind of harvester convenient to maintain to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of harvester convenient to maintain, including harvester body and harvesting arm, the inner side of the harvesting arm is provided with the control part for facilitating the maintenance of the inner side fastener of harvesting arm;

[0006] Among them, the control part includes shaft, connecting rod, connecting block, jack, spring one, control box, sealing plate, limiting plate, limiting groove, arc slot, linkage rod, limit block, support rod, spring two, ratchet gear, connecting piece, pull rod, handle, pawl, spring three, the shaft is connected with the harvesting arm rotationally and penetrates the harvesting arm, the right side surface of the shaft is connected with the connecting rod penetrating and sliding, the end of the connecting rod away from the shaft is fixedly connected with the connecting block, and the surface of the connecting block is provided with a jack.

[0007] Preferably, the connecting block and the shaft are fixedly connected with spring one, the connecting block penetrates the control box, and the control box is driven to rotate, which drives the arc slot to rotate synchronously when the control box rotates, so that the arc slot drives the linkage rod, and the linkage rod drives the limit block to slide away from the jack in the direction of the jack.

[0008] Preferably, the side surface of the control box is fixedly connected with the sealing plate, the inner side of the sealing plate is fixedly connected with the limiting plate, and the surface of the limiting plate is provided with a limiting groove.

[0009] Preferably, the inner side of the control box is provided with an arc-shaped slot, the inner side of the arc-shaped slot is penetrated by a linkage rod, the both ends of the linkage rod are fixedly connected with limiting blocks, the connecting block is inserted into the control box, at this time, the compressed spring two pushes the limiting block to abut against the surface of the connecting block, then the position of the control box is adjusted, when the limiting block is aligned with the position of the insertion hole, the spring two pushes the limiting block to be inserted into the insertion hole, the surface of the limiting block is penetrated and slidably connected with a supporting rod.

[0010] Preferably, the end of the supporting rod, away from the limiting block, is fixedly connected with the inner side of the limiting slot, and the spring two is fixedly connected between the inner side of the limiting slot and the limiting block.

[0011] Preferably, the control box is penetrated and fixedly connected with a ratchet gear, the handle is pulled up, so that the handle pulls up the pull rod to drive the pawl to no longer stop the ratchet gear, the number of the sealing plates is two groups, and the two groups of sealing plates are symmetrically arranged with the center line of the control box as the symmetric axis, and the top surfaces of the two groups of sealing plates are fixedly connected with connecting pieces.

[0012] Preferably, the inner side of the connecting piece is penetrated and slidably connected with a pull rod, the top end of the pull rod is fixedly connected with a handle, the bottom end of the pull rod is fixedly connected with a pawl, and the pawl and the inner side of the connecting piece are fixedly connected with a spring three.

[0013] Compared with the prior art, the utility model provides a harvester convenient to maintain, has the following beneficial effects:

[0014] 1、the harvester convenient to maintain, the control box is adjusted to rotate and to drive the arc-shaped slot to rotate synchronously when the control box rotates, the arc-shaped slot adjusts the linkage rod, the linkage rod drives the limiting block to slide in the limiting slot and away from the insertion hole, at this time, the limiting block compresses the spring two, when the limiting block is no longer inserted into the inner side of the insertion hole, the control box is pushed to the shaft rod of one end, the shaft rod of the other end is separated from the inner side of the control box through the connecting block connected by the connecting rod, the shaft rod can be disassembled and maintained, and the adjusting tooth arranged on the shaft rod is more easily taken down for maintenance.

[0015] 2、the harvester convenient to maintain, after the maintenance work is finished, the handle is still pulled up to make the pawl and the ratchet gear release the limiting, then the control box is adjusted again to make the limiting block contract, the connecting block is inserted into the control box, at this time, the compressed spring two pushes the limiting block to abut against the surface of the connecting block, then the position of the control box is adjusted, when the limiting block is aligned with the position of the insertion hole, the spring two pushes the limiting block to be inserted into the insertion hole, finally, the handle is loosened, the spring three pushes the pawl to limit the ratchet gear, so that the control box can no longer rotate, and the operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1It is the front view structural schematic diagram of the utility model;

[0017] Figure 2 It is the control box structural schematic diagram of the utility model;

[0018] Figure 3 It is the shaft rod amplification structural schematic diagram of the utility model;

[0019] Figure 4 It is the sealing plate profile expansion structural schematic diagram of the utility model;

[0020] Figure 5 It is the limiting block amplification structural schematic diagram of the utility model.

[0021] In the drawing: 1, harvester body; 2, control part; 21, shaft rod; 22, connecting rod; 23, connecting block; 24, jack; 25, spring one; 26, control box; 27, sealing plate; 28, limiting plate; 29, limiting groove; 210, arc-shaped groove; 211, linkage rod; 212, limiting block; 213, support rod; 214, spring two; 215, ratchet gear; 216, connecting piece; 217, pull rod; 218, handle; 219, pawl; 220, spring three; 3, harvesting arm. DETAILED DESCRIPTION

[0022] As Figures 1-5 shown, the utility model provides a kind of technical scheme: a kind of harvesting machine convenient to maintain, including harvester body 1 and harvesting arm 3, the inside of harvesting arm 3 is provided with the control part 2 of the inside fastener of harvesting arm 3 for being convenient to maintain;

[0023] The control part 2 comprises an axle rod 21, a connecting rod 22, a connecting block 23, a insertion hole 24, a spring 25, a control box 26, a sealing plate 27, a limiting plate 28, a limiting groove 29, an arc-shaped groove 210, a linkage rod 211, a limiting block 212, a supporting rod 213, a spring 214, a ratchet gear 215, a connecting piece 216, a pull rod 217, a handle 218, a pawl 219 and a spring 220. The axle rod 21 penetrates through the harvesting arm 3 and is rotationally connected with the harvesting arm 3. The right surface of the axle rod 21 penetrates through and is slidingly connected with the connecting rod 22. The end, away from the axle rod 21, of the connecting rod 22 is fixedly connected with the connecting block 23. The surface of the connecting block 23 is provided with the insertion hole 24. The spring 25 is fixedly connected between the connecting block 23 and the axle rod 21. The connecting block 23 penetrates through the control box 26. When the handle 218 is pulled up, the pull rod 217 drives the pawl 219 to no longer stop the ratchet gear 215, so that the control box 26 can be rotated and the arc-shaped groove 210 is synchronously rotated when the control box 26 is rotated, the arc-shaped groove 210 drives the linkage rod 211, and the linkage rod 211 drives the limiting block 212 to slide in the limiting groove 29 and away from the insertion hole 24. The side surface of the control box 26 is fixedly connected with the sealing plate 27. The inner side of the sealing plate 27 is fixedly connected with the limiting plate 28. The surface of the limiting plate 28 is provided with the limiting groove 29. The inner side of the control box 26 is provided with the arc-shaped groove 210. The inner side of the arc-shaped groove 210 penetrates through the linkage rod 211. The two ends of the linkage rod 211 are fixedly connected with the limiting block 212. After the maintenance work is completed, the handle 218 is still pulled up to make the pawl 219 and the ratchet gear 215 disengage, then the control box 26 is rotated again to make the limiting block 212 retract, the connecting block 23 is inserted into the control box 26, and the compressed spring 214 pushes the limiting block 212 against the surface of the connecting block 23. Then the position of the control box 26 is rotated. When the limiting block 212 is aligned with the insertion hole 24, the spring 214 pushes the limiting block 212 to be inserted into the insertion hole 24. The surface of the limiting block 212 penetrates through and is slidingly connected with the supporting rod 213. The end, away from the limiting block 212, of the supporting rod 213 is fixedly connected with the inner side of the limiting groove 29. The spring 214 is fixedly connected between the inner side of the limiting groove 29 and the limiting block 212. The control box 26 penetrates through and is fixedly connected with the ratchet gear 215. When the harvester is working, the driving teeth in the harvesting arm 3 will be worn or will be hung with the harvested materials. Then the handle 218 is pulled up to make the handle 218 pull the pull rod 217 to drive the pawl 219 to no longer stop the ratchet gear 215. The number of the sealing plates 27 is two groups. The two groups of sealing plates 27 are symmetrically arranged with the center line of the control box 26 as the axis of symmetry. The top surfaces of the two groups of sealing plates 27 are fixedly connected with the connecting pieces 216. The inner sides of the connecting pieces 216 penetrate through and are slidingly connected with the pull rods 217. The top ends of the pull rods 217 are fixedly connected with the handles 218. The bottom ends of the pull rods 217 are fixedly connected with the pawls 219. The spring 220 is fixedly connected between the inner sides of the connecting pieces 216 and the pawls 219.

[0024] Based on the above embodiment, when the harvester is working, the tines in the harvesting arm 3 will be worn and may be caught by the harvested material. When disassembled for maintenance, the handle 218 can be pulled up to pull the rod 217 and drive the pawl 219 to no longer block the ratchet gear 215. The control box 26 can be rotated to drive the arc-shaped slot 210 to rotate synchronously, so that the arc-shaped slot 210 drives the linkage rod 211, and the linkage rod 211 drives the limiting block 212 to slide away from the insertion hole 24. At this time, the limiting block 212 compresses the spring 214. When the limiting block 212 no longer inserts into the inside of the insertion hole 24, the control box 26 is pushed to the shaft 21 at one end, so that the shaft 21 at the other end is disconnected from the inside of the control box 26 through the connecting block 23 connected by the connecting rod 22. The shaft 21 can be disassembled for maintenance, and it is more convenient to remove the tines for driving plants arranged on the shaft 21 for maintenance.

[0025] After the maintenance work is completed, the handle 218 is still pulled up to release the pawl 219 from the limiting of the ratchet gear 215. Then the control box 26 is rotated again to make the limiting block 212 contract, and the connecting block 23 is inserted into the control box 26. At this time, the compressed spring 214 pushes the limiting block 212 to abut against the surface of the connecting block 23. Then the position of the control box 26 is rotated, and when the limiting block 212 is aligned with the insertion hole 24, the spring 214 pushes the limiting block 212 to insert into the insertion hole 24. Finally, the handle 218 is released, and the spring 220 pushes the pawl 219 to limit the ratchet gear 215, so that the control box 26 cannot be rotated again. The operation is simple and convenient.

[0026] The above has made a detailed description of the general utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of protection of the utility model.

Claims

1. A harvester comprising a harvester body (1) and a harvesting arm (3), which is characterized in that: The inner side of the harvesting arm (3) is provided with a control part (2) for facilitating the maintenance of the inner side of the harvesting arm (3); The control part (2) comprises a shaft rod (21), a connecting rod (22), a connecting block (23), a jack (24), a spring (25), a control box (26), a sealing plate (27), a limiting plate (28), a limiting groove (29), an arc-shaped groove (210), a linkage rod (211), a limiting block (212), a supporting rod (213), a spring (214), a ratchet gear (215), a connecting piece (216), a pull rod (217), a handle (218), a pawl (219), and a spring (220). The shaft rod (21) penetrates through the harvesting arm (3) and is rotationally connected with the harvesting arm (3). The right side surface of the shaft rod (21) penetrates and is slidingly connected with the connecting rod (22). The end of the connecting rod (22) away from the shaft rod (21) is fixedly connected with the connecting block (23). The surface of the connecting block (23) is provided with the jack (24).

2. A harvester of claim 1, wherein: The spring (25) is fixedly connected between the connecting block (23) and the shaft rod (21). The control box (26) penetrates through the connecting block (23).

3. A harvester of claim 2, wherein: The side surface of the control box (26) is fixedly connected with the sealing plate (27). The inner side of the sealing plate (27) is fixedly connected with the limiting plate (28). The surface of the limiting plate (28) is provided with the limiting groove (29).

4. A harvester of claim 2, wherein: The inner side of the control box (26) is provided with the arc-shaped groove (210). The inner side of the arc-shaped groove (210) penetrates through the linkage rod (211). The two ends of the linkage rod (211) are fixedly connected with the limiting block (212). The surface of the limiting block (212) penetrates and is slidingly connected with the supporting rod (213).

5. A harvester of claim 4 wherein: The end of the supporting rod (213) away from the limiting block (212) is fixedly connected with the inner side of the limiting groove (29). The inner side of the limiting groove (29) and the limiting block (212) are fixedly connected with the spring (214).

6. A harvester of claim 2, wherein: The control box (26) penetrates and is fixedly connected with the ratchet gear (215). The number of the sealing plates (27) is two. The two sealing plates (27) are symmetrically arranged about the center line of the control box (26) as the symmetry axis. The top surfaces of the two sealing plates (27) are fixedly connected with the connecting piece (216).

7. A harvester of claim 6 wherein: The inner side of the connecting piece (216) penetrates and is slidingly connected with the pull rod (217). The top end of the pull rod (217) is fixedly connected with the handle (218). The bottom end of the pull rod (217) is fixedly connected with the pawl (219). The inner side of the pawl (219) and the connecting piece (216) are fixedly connected with the spring (220).

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