Cotton picking machine doffing disc assembly

Abstract

The utility model relates to the technical field of cotton picker accessories, and discloses a cotton picker doffing disc assembly which comprises an arrow shaft and a plurality of doffing disc bodies arranged on the arrow shaft in an interference fit mode. The cotton doffing disc body comprises a metal disc body arranged on the arrow shaft in a sleeving mode, a rubber elastic sleeve wrapping the periphery of the metal disc body and a plurality of rubber protrusions integrally arranged on the periphery of the outer wall of one side of the rubber elastic sleeve, and a spacer bush arranged on the arrow shaft in an interference fit and sleeving mode is integrally arranged at the center of the metal disc body. Reinforcing ribs are arranged at the positions, corresponding to the rubber protrusions, of the peripheral sides of the spacer bushes, extension rods extending towards one sides of the rubber protrusions are arranged at the ends, away from the spacer bushes, of the reinforcing ribs, and rod grooves allowing the extension rods to be embedded are formed in the lower sides of the rubber protrusions. The extension rods of the reinforcing ribs are embedded into the rod grooves in the lower sides of the rubber protrusions, so that circumferential rotation between the rubber elastic sleeve and the metal disc body is clamped through cooperation between the extension rods and the rod grooves, and finally stable connection between the metal disc body and the rubber elastic sleeve can be facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of cotton harvester accessories, and specifically relates to a cotton harvester desiccant assembly. Background Technology

[0002] A cotton harvester is an agricultural machine specifically designed for picking cotton. Its core functions include picking, separating impurities, storing or baling cotton, achieving fully automated operation from field to transportation. The cotton stripping disc assembly is the core component of the cotton harvester.

[0003] Currently, Chinese patent publication number CN209676892U, published on November 26, 2019, discloses a cotton-removing disc assembly for a cotton harvester. The assembly includes a cotton-removing disc rod, multiple cotton-removing discs interference-fitted onto the rod, multiple long spacers disposed on the rod and distributed between adjacent cotton-removing discs, a cotton-removing disc bearing disposed at one end of the rod, a locking nut disposed at one end of the rod for fixing the bearing, a bearing cap disposed on the rod and covering the bearing, and short spacers disposed on the rod and distributed between the cotton-removing discs and the bearing cap. Multiple support bars are integrally disposed on the inner wall of the long spacers, spaced at intervals along the centerline of the rod. The length of the support bars extends along the length of the rod, and the support bars are interference-fitted onto the periphery of the rod.

[0004] The cotton removal disc includes a cotton removal disc body that is interference-fitted onto the cotton removal disc shaft, a rubber elastic layer covering the cotton removal disc body, and elastic protrusions integrally disposed on the rubber elastic layer and distributed in a circumferential array.

[0005] The rubber elastic layer is bonded to the cotton removal disc body. However, during high-speed rotation, the cotton removal disc body and the rubber elastic layer are prone to delamination. This causes the rubber elastic layer to be unable to rotate stably with the cotton removal disc body, which ultimately hinders the stable connection between the cotton removal disc body and the rubber elastic layer. Utility Model Content

[0006] The purpose of this invention is to provide a cotton harvester desiccant assembly that facilitates a stable connection between the metal disc and the rubber elastic sleeve.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cotton harvester de-coating disc assembly, including an arrow shaft and multiple de-coating disc bodies that are interference-fitted onto the arrow shaft. The de-coating disc body includes a metal disc body sleeved on the arrow shaft, a rubber elastic sleeve wrapped around the periphery of the metal disc body, and multiple rubber protrusions integrally disposed on the periphery of one side of the outer wall of the rubber elastic sleeve. A spacer sleeve that is interference-fitted onto the arrow shaft is integrally disposed at the center of the metal disc body. A reinforcing rib is disposed on the periphery of the spacer sleeve and at the position corresponding to the rubber protrusion. An extension rod extending toward the rubber protrusion is disposed at the end of the reinforcing rib away from the spacer sleeve. A rod groove for the extension rod to be inserted is opened on the lower side of the rubber protrusion.

[0008] A further feature of this invention is that a mating sleeve for wrapping around the spacer on the side of the metal disc away from the spacer is integrally provided at the center of the side of the metal disc away from the spacer.

[0009] A further feature of this invention is that the circumferential side of the mating sleeve is provided with a plurality of threaded holes, and a locking bolt with an end for abutting against the outer wall of the spacer is threaded into the threaded holes.

[0010] A further feature of this invention is that a countersunk groove is provided on the outer wall of the mating sleeve for the bolt head of the locking bolt to be inserted.

[0011] In summary, this utility model has the following beneficial effects:

[0012] 1. By wrapping a rubber elastic sleeve around the periphery of the metal disc, the contact area between the rubber elastic sleeve and the metal disc is increased, which is beneficial for the stable bonding and fixation between the rubber elastic sleeve and the metal disc. The spacer sleeve is integrated into the metal disc, which is more convenient for the quick installation of the cotton removal disc body on the arrow shaft compared to the separate installation of the spacer sleeve and the metal disc body in the existing technology. At the same time, the reinforcing ribs reinforce the connection between the spacer sleeve and the metal disc body. The extension rod of the reinforcing rib is embedded in the rod groove on the lower side of the rubber protrusion. The cooperation between the extension rod and the rod groove locks the circumferential rotation between the rubber elastic sleeve and the metal disc body, which ultimately facilitates the stable connection between the metal disc body and the rubber elastic sleeve.

[0013] Meanwhile, since the extension rod and the reinforcing rib are connected as a whole, it can help enhance the structural stability of the extension rod and the reinforcing rib on the surface of the metal disc.

[0014] 2. When two adjacent metal discs are fitted onto the arrow shaft, the mating sleeve is used to wrap around the end of the spacer sleeve, which is conducive to the stable connection between the two adjacent metal discs.

[0015] 3. After the connecting sleeve is wrapped around the end of the spacer, the locking bolt is threaded into the threaded hole. At this time, the end of the locking bolt can abut against the outer wall of the spacer inside the connecting sleeve, thereby locking the position between the two adjacent metal discs through the locking bolt. Ultimately, this will help multiple cotton-removing discs rotate stably together with the arrow shaft.

[0016] 4. The countersunk groove on the outer wall of the mating sleeve allows the bolt head of the locking bolt to be inserted, thereby avoiding the bolt head protruding too much and affecting the flow of cotton on the cotton removal disc. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the cotton removal disc body in this utility model;

[0020] Figure 3 This is a structural cross-sectional view of the cotton removal disc body in this utility model.

[0021] In the diagram, 1 is the arrow shaft; 2 is the cotton-removing disc body; 21 is the metal disc body; 211 is the spacer; 212 is the reinforcing rib; 213 is the extension rod; 214 is the connecting sleeve; 2141 is the threaded hole; 2142 is the locking bolt; 2143 is the countersunk groove; 22 is the rubber elastic sleeve; 23 is the rubber protrusion; and 231 is the rod groove. Detailed Implementation

[0022] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] A cotton harvester desiccant assembly, referring to Figure 1 , Figure 2The cotton harvester's cotton removal disc assembly includes an arrow shaft 1 and multiple cotton removal disc bodies 2 that are interference-fitted onto the arrow shaft 1. The cotton removal disc body 2 includes a metal disc 21, a rubber elastic sleeve 22, and multiple rubber protrusions 23. The metal disc 21 is fitted onto the arrow shaft 1, while the rubber elastic sleeve 22 is bonded to the periphery of the metal disc 21. Meanwhile, the multiple rubber protrusions 23 are integrally formed on the periphery of one side of the outer wall of the rubber elastic sleeve 22, and the multiple rubber protrusions 23 are evenly spaced along the periphery of the rubber elastic sleeve 22.

[0024] Reference Figure 2 , Figure 3 The metal disc 21 has an integrally formed spacer 211 that is interference-fitted onto the arrow shaft 1 at its center. A reinforcing rib 212 is welded to the periphery of the spacer 211 at the position corresponding to the rubber protrusion 23. An extension rod 213 extending toward the rubber protrusion 23 is integrally formed at the end of the reinforcing rib 212 away from the spacer 211. A rod groove 231 for the extension rod 213 to be inserted is formed on the lower side of the rubber protrusion 23. At the same time, a mating sleeve 214 for wrapping around the spacer 211 of the adjacent metal disc 21 is integrally formed at the center of the side of the metal disc 21 away from the spacer 211. A plurality of threaded holes 2141 are formed on the periphery of the mating sleeve 214. A locking bolt 2142 with its end for pressing against the outer wall of the spacer 211 is internally connected to the threaded hole 2141. A countersunk groove 2143 for the bolt head of the locking bolt 2142 to be inserted is formed on the outer wall of the mating sleeve 214.

[0025] Principle: The rubber elastic sleeve 22 is wrapped around the periphery of the metal disc 21, thereby increasing the contact area between the rubber elastic sleeve 22 and the metal disc 21, which is beneficial to the stable bonding and fixation between the rubber elastic sleeve 22 and the metal disc 21. The spacer 211 is integrally set on the metal disc 21, which is more convenient for the quick installation of the cotton removal disc body 2 on the arrow shaft 1 compared to the separate installation of the spacer 211 and the metal disc 21 in the prior art. At the same time, the reinforcing rib 212 strengthens the connection between the spacer 211 and the metal disc 21. The extension rod 213 of the reinforcing rib 212 is embedded in the rod groove 231 on the lower side of the rubber protrusion 23. The cooperation between the extension rod 213 and the rod groove 231 locks the circumferential rotation between the rubber elastic sleeve 22 and the metal disc 21, which is conducive to the stable connection between the metal disc 21 and the rubber elastic sleeve 22.

Claims

1. A cotton harvester de-coating disc assembly, comprising a shaft (1) and multiple de-coating disc bodies (2) interference-fitted onto the shaft (1), characterized in that: The cotton removal disc body (2) includes a metal disc body (21) sleeved on the arrow shaft (1), a rubber elastic sleeve (22) wrapped around the metal disc body (21), and a plurality of rubber protrusions (23) integrally arranged on the outer wall of one side of the rubber elastic sleeve (22). A spacer (211) with interference fit is integrally provided at the center of the metal disc body (21) and sleeved on the arrow shaft (1). A reinforcing rib (212) is provided on the periphery of the spacer (211) and at the position corresponding to the rubber protrusion (23). An extension rod (213) extending toward the side of the rubber protrusion (23) is provided at the end of the reinforcing rib (212) away from the spacer (211). A rod groove (231) for the extension rod (213) to be inserted is provided on the lower side of the rubber protrusion (23).

2. The cotton harvester desiccant assembly according to claim 1, characterized in that: The metal disc (21) has an integrally formed mating sleeve (214) at the center of the side away from the spacer (211) for wrapping around the spacer (211) of the adjacent metal disc (21).

3. The cotton harvester desiccant assembly according to claim 2, characterized in that: The circumferential side of the connecting sleeve (214) is provided with a plurality of threaded holes (2141), and the threaded holes (2141) are internally threaded with locking bolts (2142) whose ends are used to abut against the outer wall of the spacer (211).

4. The cotton harvester desiccant assembly according to claim 3, characterized in that: The outer wall of the mating sleeve (214) is provided with a countersunk groove (2143) into which the bolt head of the locking bolt (2142) is inserted.

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