Moving cutter transmission device of harvester

Abstract

The utility model discloses a harvester moving cutter transmission device which comprises a moving cutter assembly and a transmission mechanism, the transmission mechanism comprises a power input end, a transmission shaft and a power output end, and the power input end comprises a power input shaft and an eccentric bearing located at one end of the power input shaft. The transmission shaft and the eccentric bearing are installed in a matched mode through a swing arm base. A reinforcing seat is further arranged, a shaft hole is formed in the reinforcing seat, an end bearing is arranged in the shaft hole in a matched mode, the power input shaft penetrates through the eccentric bearing and is installed with the end bearing in a matched mode, a containing cavity groove is formed in the reinforcing seat, and the containing cavity groove is used for containing a swing arm seat. The reinforcing base structure is optimized and added, the supporting strength of the input shaft is improved, the radial stress of the input shaft can be dispersed through the reinforcing base structure, and therefore the service life of a product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of harvester technology, and in particular to a harvester's moving blade transmission device. Background Technology

[0002] Traditional crop harvesting equipment is used to harvest various grains (such as wheat, soybeans, and rice). It cuts the crop with blades on the harvester head, collects it, and then performs other operations such as conveying, threshing, and harvesting. The commonly used harvester head is a shear-type structure, meaning that as the harvester moves, power drives the movable blades to reciprocate through a transmission mechanism, and the movable and fixed blades shear the crop.

[0003] Currently, the drive mechanism for movable tools typically employs an eccentric structure. This involves converting the rotational motion of the drive shaft into reciprocating motion via an eccentric wheel, which is then transmitted to the movable tool's drive shaft via a long connecting rod and a crank arm. Due to the long transmission distance, significant oscillation occurs during operation, generating vibration and resulting in unstable operation. Furthermore, the crank arm's oscillation trajectory is only approximately linear, leaving the input shaft, which engages with the eccentric wheel at the other end of the drive shaft, often unsupported. This causes the input shaft to be frequently subjected to radial impact forces. With prolonged use, the mating point between the input shaft and the eccentric wheel is highly susceptible to damage, potentially leading to input shaft breakage and transmission failure. Utility Model Content

[0004] To address the aforementioned problems, this utility model aims to provide a harvester's motorized blade transmission device, which optimizes and adds a reinforcing seat structure to improve the support strength of the input shaft, and can also distribute the force, thereby increasing the product's service life.

[0005] The technical problem solved by this utility model can be achieved by the following technical solution:

[0006] A harvester's moving blade transmission device includes a moving blade assembly and a transmission mechanism. The transmission mechanism includes a power input end, a drive shaft, and a power output end. The power input end includes a power input shaft and an eccentric bearing located at one end of the power input shaft. The drive shaft is installed in conjunction with the eccentric bearing via a swing arm seat. A reinforcing seat is also provided, with a shaft hole on the reinforcing seat. An end bearing is fitted into the shaft hole. The power input shaft passes through the eccentric bearing and is installed in conjunction with the end bearing. A receiving cavity is provided in the reinforcing seat to accommodate the swing arm seat.

[0007] The reinforcing base is also provided with a reinforcing mounting support plate, which is located on the upper and lower parts of the reinforcing base.

[0008] The swing arm seat is provided with two swing arm mounting seats, and the swing arm mounting seats are provided with mounting bearings. The outer ring of the eccentric bearing is provided with two mounting shafts, and the two mounting shafts are respectively matched and installed with the two mounting bearings.

[0009] The swing arm seat is also provided with a pivot hole, which is used to mate with the end of the drive shaft for installation.

[0010] The power input shaft is also fitted with a power input wheel. A bushing is fitted on the outside of the power input shaft. One end of the bushing is used to be installed with a first fixed seat, and the other end is used to be installed with a second fixed seat. The power input shaft passes through the first fixed seat and is installed with the power input wheel, and the other end passes through the second fixed seat and continues to extend.

[0011] The power output end includes a support bearing housing and a swing blade assembly. The drive shaft passes through the support bearing housing and is installed in conjunction with the swing blade assembly. The swing blade assembly is used to drive the moving blade assembly to reciprocate.

[0012] The oscillating blade assembly includes an oscillating blade arm, the upper part of which is fixedly installed with the drive shaft, and the lower part of which is provided with a swing shaft hole for mounting and engaging with the moving blade assembly.

[0013] The advantages of this utility model over the prior art are as follows: This utility model optimizes and adds a reinforcing seat structure, which, combined with the first fixed seat and the second fixed seat, achieves three-stage support, improves the support strength of the input shaft, and utilizes the reinforcing seat structure to disperse the radial force on the input shaft, thereby improving the service life of the product.

[0014] The features of this utility model can be clearly understood by referring to the drawings and the following detailed description of the preferred embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled installation structure of the transmission mechanism of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the power input and reinforcing seat of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the power input, transmission shaft, and reinforcing seat of this utility model;

[0019] Figure 5 This is a schematic diagram of the reinforcing seat structure of this utility model. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0021] Combination Figures 1 to 5 As shown, this utility model discloses a harvester's moving blade transmission device, including a moving blade assembly 500 and a transmission mechanism. The moving blade assembly 500 is a commonly used moving blade assembly in existing harvesters, used to cut harvested crops. The transmission mechanism includes a power input end 100, a drive shaft 200, and a power output end 300. The power input end 100 includes a power input shaft 110 and an eccentric bearing 120 located at one end of the power input shaft 110. The power input end 100 is used to input power. Combined with the other transmission components of the harvester, it realizes the transmission of the original power from the power input end 100. The input of the starting power drives the power input shaft 110 to rotate. The other end of the power input shaft 110 is connected to the eccentric bearing 120. The transmission shaft 200 is installed in conjunction with the eccentric bearing 120 through the swing arm seat 210. The power input shaft 110 rotates through the eccentric bearing 120, causing the swing arm seat 210 to rotate through the eccentric bearing 120. As the swing arm seat 210 rotates, it drives the transmission shaft 200 to rotate back and forth. The other end of the transmission shaft 200 reciprocates through the power output end 300 to swing the moving tool assembly 50 back and forth, thus completing the cutting motion of the moving tool assembly 500.

[0022] In conjunction with the above, preferably, a reinforcing seat 400 is also provided. The reinforcing seat 400 has a shaft hole 401, and an end bearing 420 is fitted inside the shaft hole 401. The power input shaft 110 passes through the eccentric bearing 120 and is installed in conjunction with the end bearing 420. The reinforcing seat 400 has a receiving cavity 430 for accommodating the swing arm seat 210. The optimized addition of the reinforcing seat 400 structure provides a supporting component at the output end of the power input shaft 110, preventing the power input shaft 110 from bearing force alone. After the end is fixed by the end bearing 420, the power input shaft 110 can be reinforced and supported by the reinforcing seat 400. When the swing arm seat 210 is driven by the transmission shaft 200 to swing, the power input shaft 110 can achieve multi-point force, avoiding the single-end force on the eccentric bearing 120 and the power input shaft 110, dispersing its swing force, reducing the stress on the eccentric bearing 120 and the power input shaft 110, and improving the overall service life of the product.

[0023] Preferably, the reinforcing seat 400 is also provided with a reinforcing mounting support plate 410, which is located on the upper and lower parts of the reinforcing seat 400. The reinforcing mounting support plate 410 is used to fix and install with the harvester frame, which facilitates assembly. The structure of the reinforcing seat is specially optimized, and an internal receiving cavity 430 is formed to facilitate the reception of the swing arm seat 210, avoid interference between components, and improve the overall strength.

[0024] In the specific structure, the rocker arm seat 210 is provided with two rocker arm mounting seats 211, and the rocker arm mounting seats 211 are provided with mounting bearings 212. The outer ring of the eccentric bearing 120 is provided with two mounting shafts 121, and the two mounting shafts 121 are respectively fitted and installed with the two mounting bearings 212. The rocker arm seat 210 is also provided with a shaft hole 213, which is used to fit and install with the end of the transmission shaft 200. The structure of the rocker arm seat 210 is optimized. The rocker arm seat 210 is generally shaped like a "C", the rocker arm mounting seats 211 are distributed vertically, and the eccentric bearing 120 is located on the rocker arm mounting seats 211. Between the upper and lower parts, and through the upper and lower assembly shafts 121 respectively cooperating with the assembly bearings 212, as the power input shaft 110 rotates, the deflection bearing 120 achieves cam-like rotation, thereby driving the swing arm assembly seat 211 to reciprocate through the upper and lower assembly shafts 121, so that the entire swing arm seat 210 reciprocates. The swing arm seat 210 is fixedly engaged with the transmission shaft 200 through the rotating shaft hole 213, thereby driving the transmission shaft 200 to reciprocate. The other end of the transmission shaft 200 drives the moving blade assembly 500 to reciprocate through the power output end 300, thereby completing the cutting.

[0025] In conjunction with the above, a power input wheel 130 is also fitted on the power input shaft 110. The power input wheel 130 is used to cooperate with other power sources of the harvester. Preferably, the power input wheel 130 is a belt pulley. The other power sources drive the power input wheel 130 to rotate, and the power input wheel 130 drives the power input shaft 110 to rotate. A bushing 160 is fitted on the outside of the power input shaft 110. One end of the bushing 160 is used to cooperate with the first fixed seat 140 for installation, and the other end is used to cooperate with the second fixed seat 150 for installation. The power input shaft 110 passes through the first fixed seat 140 and is installed with the power input wheel 130. The other end passes through the second fixed seat 150 and continues to extend, and after passing through the eccentric bearing 120, it is installed with the end bearing 420 on the reinforcing seat 400.

[0026] In summary, the power output end 300 includes a support bearing seat 310 and a swing blade assembly 320. The drive shaft 200 passes through the support bearing seat 310 and is installed in conjunction with the swing blade assembly 320. The swing blade assembly 320 is used to drive the moving blade assembly 500 to reciprocate. The swing blade assembly 320 includes a swing blade arm 321. The upper part of the swing blade arm 321 is fixedly installed with the drive shaft 200. The lower part of the swing blade arm 321 is provided with a swing shaft hole 322. The swing shaft hole 322 is used to install and cooperate with the moving blade assembly 500. The moving blade assembly 500 is fitted with a swing member 510. Through the cooperation between the swing member 510 and the swing shaft hole 322, the swing member 510 is used to drive a number of blades 520 on the moving blade assembly 500 to achieve linkage, thereby realizing the reciprocating cutting of the number of blades 520.

[0027] This utility model optimizes and adds a reinforcing seat structure, combining the first fixed seat and the second fixed seat to achieve three-section support, thereby improving the support strength of the input shaft. Furthermore, the reinforcing seat structure can disperse the radial force on the input shaft, thus improving the service life of the product.

[0028] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A harvester's moving blade transmission device, comprising a moving blade assembly and a transmission mechanism, characterized in that: The transmission mechanism includes a power input end, a drive shaft, and a power output end. The power input end includes a power input shaft and an eccentric bearing located at one end of the power input shaft. The drive shaft is installed in conjunction with the eccentric bearing via a rocker arm seat. A reinforcing seat is also provided, with a shaft hole on the reinforcing seat. An end bearing is fitted into the shaft hole. The power input shaft passes through the eccentric bearing and is installed in conjunction with the end bearing. A receiving cavity is provided in the reinforcing seat to accommodate the rocker arm seat.

2. The harvester's motorized blade transmission device according to claim 1, characterized in that: The reinforcing base is also provided with a reinforcing mounting support plate, which is located on the upper and lower parts of the reinforcing base.

3. The harvester's motorized blade transmission device according to claim 1, characterized in that: The swing arm seat is provided with two swing arm mounting seats, and the swing arm mounting seats are provided with mounting bearings. The outer ring of the eccentric bearing is provided with two mounting shafts, and the two mounting shafts are respectively matched and installed with the two mounting bearings.

4. The harvester's motorized blade transmission device according to claim 3, characterized in that: The swing arm seat is also provided with a pivot hole, which is used to mate with the end of the drive shaft for installation.

5. A harvester's motorized blade transmission device according to any one of claims 1 to 4, characterized in that: The power input shaft is also fitted with a power input wheel. A bushing is fitted on the outside of the power input shaft. One end of the bushing is used to be installed with a first fixed seat, and the other end is used to be installed with a second fixed seat. The power input shaft passes through the first fixed seat and is installed with the power input wheel, and the other end passes through the second fixed seat and continues to extend.

6. The harvester's motorized blade transmission device according to claim 5, characterized in that: The power output end includes a support bearing housing and a swing blade assembly. The drive shaft passes through the support bearing housing and is installed in conjunction with the swing blade assembly. The swing blade assembly is used to drive the moving blade assembly to reciprocate.

7. A harvester's motorized blade transmission device according to claim 6, characterized in that: The oscillating blade assembly includes an oscillating blade arm, the upper part of which is fixedly installed with the drive shaft, and the lower part of which is provided with a swing shaft hole for mounting and engaging with the moving blade assembly.

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