Short-pitch shifting tooth chain for agricultural machine

Abstract

A short-pitch shifting-tooth chain for agricultural machinery belongs to the technical field of shifting-tooth chains and comprises a shifting-tooth chain body, the shifting-tooth chain body is provided with an attached plate for shifting seedlings, one end of the attached plate is a vertical face, a shifting block is connected to the vertical face, one end, away from the attached plate, of the shifting block forms a shifting face, the shifting face is an arc-shaped face, and the shifting-tooth chain body is provided with a shifting-tooth chain body. And the arc-shaped surface is longitudinally arranged. The small-pitch shifting tooth chain is suitable for being used as a conveying chain for conveying corn ears and other crops, the size of the chain is small, the requirement for rapid conveying can be met, the back of the attached plate is a vertical face, the grain shifting blocks are arranged, and the harvesting efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of straw-pulling chains, and in particular relates to a short-pitch straw-pulling chain for agricultural machinery. Background Art

[0002] At present, the pitch of the pulling chain used in domestic agricultural harvesting machinery is 38mm. This chain has an attached plate, which is bent into an eagle's beak shape. During operation, the attached plate contacts the stem of the crop, and the crop is pulled into the harvester through the rotation of the chain. This chain is used in pairs, and the attached plates are staggered when used to pull the crop into the harvester together.

[0003] The existing chain attachment plate has a pitch of 38mm, which is too large and is not suitable for use as a conveyor chain to transport crops such as corn ears. The chain is too large to meet the requirements of fast transportation, and the back strap of the attachment plate is inclined, which is not conducive to improving the harvesting efficiency. In addition, the attachment plate is made of metal as a whole and has a high hardness. During use, it is very easy to hit and damage the fruits on the stems and ears of crops, causing losses and waste. At the same time, the attachment plate is a functional component. It contacts the stems and ears of crops during use and is impacted by the fruits during the process, so it is easy to wear or break. However, since the attachment plate is riveted to the chain, it is difficult to remove it from the chain once it is damaged. The entire chain is often scrapped and replaced with a new one, which not only has high maintenance costs, but also takes a long time to maintain. Utility Model Content

[0004] The present invention discloses a short-pitch gear chain for agricultural machinery, which aims to solve the problem described in the background technology that "the pitch of the existing chain attachment plate is 38 mm, which is relatively large in size and is not suitable for use as a conveying chain to convey crops such as corn ears. Moreover, the chain is relatively large in size and cannot meet the requirements of rapid conveying. Moreover, the back strap of the attachment plate has an inclination, which is not conducive to improving the harvesting efficiency. In addition, the attachment plate is made of metal as a whole and has a high hardness. During use, it is very easy to hit and damage the fruits on the stems and ears of crops, causing losses and waste. At the same time, the attachment plate is a functional component, which contacts the stems and ears of crops during use and is impacted by the fruits during the process, so it is easy to wear or break. However, since the attachment plate is riveted to the chain, once it is damaged, it is difficult to remove it from the chain, and the entire chain is often scrapped and replaced with a new one, which not only has high maintenance costs but also long maintenance time."

[0005] To achieve the above purpose, the technical solution of this novel invention is:

[0006] A short pitch toothed chain for agricultural machinery comprises a toothed chain body, wherein the toothed chain body is provided with an attached plate for plowing crops, one end of the attached plate is a vertical surface, a plowing block is connected to the vertical surface, an end of the plowing block away from the attached plate forms a plowing surface, the plowing surface is an arcuate surface, and the arcuate surface is arranged longitudinally.

[0007] Preferably, the paddling block is a rubber block, a connecting hole is provided on the vertical surface, and a convex column penetrating the connecting hole and tightly fitting with the connecting hole is integrally formed on the back side of the rubber block.

[0008] Preferably, there are two connecting holes distributed longitudinally on the facade, and the reed block is made by vulcanizing rubber and bonded to the attachment plate by vulcanizing.

[0009] Preferably, the height of the vertical surface is 50 mm, and the end of the attached plate opposite to the vertical surface is an inclined surface inclined upward on one side of the vertical surface, and the inclination angle of the inclined surface is 55°.

[0010] Preferably, the head of the attachment plate has an arc structure at one end facing the reeling block and a right-angle structure at the other end, and the width of the head is 10 mm.

[0011] Preferably, connecting parts are integrally formed on both sides of the bottom of the attachment plate, the two sides of the bottom end of the connecting part are arc structures protruding downward, the middle part is an arc structure recessed upward, and the connecting part is provided with 2 mounting holes, which are used to connect with the gear chain body.

[0012] Preferably, the vertical surface protrudes from one end of the connecting portion toward the vertical surface, and the protruding length is ≥ 2 mm.

[0013] Preferably, the pitch of the shifter chain body is 19.05 mm.

[0014] The beneficial effects of the short pitch shifting tooth chain for agricultural machinery are as follows:

[0015] 1. Protect the fruit. As the straw block is soft in texture, it can reduce the impact on the crops and avoid damaging the crops during operation.

[0016] 2. Easy to maintain. When the reed block is damaged, it can be directly replaced without having to replace a new chain or causing the chain to be scrapped.

[0017] 3. Since the reed blocks are easy to replace and can be replaced without disassembling the chain, disassembly and maintenance can be avoided, which significantly shortens the maintenance time and reduces the maintenance cost.

[0018] 4. By setting the arc surface, the efficiency of the reed-pulling block is significantly improved.

[0019] 5. This new type is a small pitch chain, which is suitable for use as a conveyor chain to transport crops such as corn ears. The chain size is small, which can meet the requirements of rapid transportation, and the back of the attached plate is a vertical surface, which is conducive to improving the harvesting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1, a front view structural schematic diagram of the present invention.

[0021] Figure 2 , a schematic diagram of the side structure of the new model.

[0022] Figure 3 , a schematic diagram of the top view structure of the new model.

[0023] Figure 4 , a schematic diagram of the cross-sectional structure of the new model along the AA direction.

[0024] Figure 5 , a schematic diagram of the front view structure of the gear chain in the prior art.

[0025] Figure 6 , a schematic diagram of the top view of the gear chain structure in the prior art.

[0026] Figure 7 , a schematic diagram of the side view structure of a gear chain in the prior art.

[0027] 1. toothed chain body; 2. tiller block; 3. attached plate; 4. tiller surface; 5. one end of the connection portion facing the vertical surface; 6. arc-shaped structure; 7. connecting hole; 8. attached plate of the toothed chain of the prior art; 9. The tiller surface of the attached plate of the toothed chain of the prior art is an inclined surface. DETAILED DESCRIPTION

[0028] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0029] Example 1

[0030] A short pitch shifting tooth chain for agricultural machinery, such as Figure 1-4 As shown, it includes a toothed chain body 1, and the toothed chain body 1 is provided with an attached plate 3 for plowing the reeds. One end of the attached plate 3 is a vertical surface, and a plowing block 2 is connected to the vertical surface. The end of the plowing block 2 away from the attached plate 3 constitutes a plowing surface 4, and the plowing surface 4 is an arcuate surface, and the arcuate surface is arranged longitudinally.

[0031] In this embodiment, the gear chain body 1 is a common technology, and can adopt the gear chain body structure in the prior art, for example, Figure 1-3 As shown, the shifting tooth chain body 1 includes an inner link plate, a sleeve, a pin shaft, an outer link plate, a roller and an attached plate. The inner link plate, the sleeve and the roller are assembled together to form an inner link, the outer link plate and the pin shaft are assembled together to form an outer link, and the attached plate and the pin shaft are assembled together to form an attached plate link. The above three are assembled together to form the shifting tooth chain body 1. See the attached Figure 1-3 As shown, the unmentioned contents are solved by the existing solutions.

[0032] The difference of the present invention is that one end of the attachment plate is a vertical surface, that is, the vertical surface is perpendicular to the plane where the centers of the four mounting holes of the attachment plate are located, and at the same time, a reed-pulling block is connected to the vertical surface, which is used to pry the crops, and can be easily replaced after being damaged, thus avoiding the problem of overall failure of the chain caused by overall damage to the attachment plate. At the same time, an arc surface is provided at the end of the reed-pulling block, which is more convenient for prying the stalks of crops and improving the efficiency of prying the crops.

[0033] Example 2

[0034] Based on Example 1, this example is improved as follows:

[0035] like Figure 1-3 As shown, the paddling block 2 is a rubber block, a connecting hole 7 is provided on the vertical surface, and a convex column penetrating the connecting hole 7 and tightly fitting with the connecting hole 7 is integrally formed on the back of the rubber block 2 .

[0036] like Figure 2 As shown, there are two connecting holes 7 which are longitudinally distributed on the vertical surface, and the reed block 2 is made by vulcanizing rubber and bonded to the attached plate by vulcanizing. The bonding of the back of the reed block to the vertical surface of the attached plate and the bonding of the surface of the convex column to the inner surface of the connecting hole can greatly improve the connection strength between the reed block 2 and the attached plate 3.

[0037] Example 3

[0038] Based on Example 2, this example is improved as follows:

[0039] like Figure 1-4 As shown, the height of the vertical surface is 50 mm, and the end of the attachment plate 3 opposite to the vertical surface is an inclined surface inclined upward on one side of the vertical surface, and the inclination angle of the inclined surface is 55°.

[0040] like Figure 1-4 As shown, the head of the attachment plate 3 has an arc structure at one end facing the reel block 2 and a right-angle structure at the other end, and the width of the head is 10 mm.

[0041] like Figure 1-4 As shown, the bottom of the attachment plate 3 is integrally formed with connecting parts on both sides, the bottom of the connecting part has two arc structures protruding downward, and the middle is an arc structure 6 recessed upward. The connecting part is provided with two mounting holes, and the mounting holes are used to connect with the gear chain body.

[0042] like Figure 1-4 As shown, the facade protrudes from one end 5 of the connecting portion toward the facade, and the protruding length is ≥ 2 mm.

[0043] In this embodiment, Figure 1-3As shown, the connecting portion replaces the position of the inner link plate or the outer link plate in the shifter chain body and is connected to the sleeve or the end of the pin through the mounting hole.

[0044] Example 4

[0045] Based on Example 3, this example is improved as follows:

[0046] like Figure 1-4 As shown, the pitch of the shifting tooth chain body 1 is 19.05 mm, which is a short pitch chain and can be used for high-speed transmission in shifting crops with high operating efficiency.

Claims

1. A short pitch toothed chain for agricultural machinery, characterized in that: it comprises a toothed chain body, the toothed chain body is provided with an attached plate for plowing crops, one end of the attached plate is a vertical surface, a plowing block is connected to the vertical surface, the end of the plowing block away from the attached plate constitutes a plowing surface, the plowing surface is an arcuate surface, and the arcuate surface is arranged longitudinally.

2. A short pitch shifting chain for agricultural machinery as claimed in claim 1, characterized in that: The paddling block is a rubber block, a connecting hole is arranged on the vertical surface, and a convex column penetrating the connecting hole and tightly fitting with the connecting hole is integrally formed on the back of the rubber block.

3. A short pitch shifter chain for agricultural machinery as claimed in claim 2, characterized in that: There are two connecting holes which are longitudinally distributed on the vertical surface. The reed block is made by vulcanizing rubber and bonded to the attached plate by vulcanizing.

4. A short pitch shifter chain for agricultural machinery as claimed in claim 3, characterized in that: The height of the vertical surface is 50 mm, and the end of the attached plate opposite to the vertical surface is an inclined surface inclined upward on one side of the vertical surface, and the inclination angle of the inclined surface is 55°.

5. A short pitch shifter chain for agricultural machinery as claimed in claim 4, characterized in that: The head of the attachment plate has an arc structure at one end facing the reed block and a right-angle structure at the other end, and the width of the head is 10 mm.

6. A short-pitch gear shift chain for agricultural machinery as described in claim 5, characterized in that: connecting parts are integrally formed on both sides of the bottom of the attached plate, the two sides of the bottom end of the connecting part are downwardly protruding arc structures, and the middle part is an upwardly concave arc structure, and the connecting part is provided with 2 mounting holes, and the mounting holes are used to connect with the gear shift chain body.

7. A short pitch shifter chain for agricultural machinery as claimed in claim 6, characterized in that: The vertical surface protrudes from one end of the connecting portion toward the vertical surface, and the protruding length is ≥2mm.

8. A short pitch shifter chain for agricultural machinery as claimed in claim 7, characterized in that: The pitch of the shifter chain body is 19.05 mm.

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