A rotation adjusting mechanism of a high-throwing silage harvester

The hydraulically driven motor gear meshes with the arc-shaped rack to adjust the gap at the bottom of the throwing cylinder, achieving ±90-degree angle adjustment of the throwing cylinder. This solves the problems of complexity and high cost of the existing throwing cylinder rotation mechanism of silage harvesters, and improves equipment reliability and operating efficiency.

CN224290768UActive Publication Date: 2026-05-29GANSU ACAD OF MECHANICAL SCI +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU ACAD OF MECHANICAL SCI
Filing Date
2025-05-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing silage harvester's rotating feed cylinder mechanism is complex, costly, and has a high failure rate, and requires regular lubrication and maintenance.

Method used

The motor gear driven by the hydraulic motor meshes with the arc rack, and the bottom gap of the throwing cylinder is adjusted by adjusting the shims to achieve ±90 degree angle adjustment of the throwing cylinder, eliminating the need for chain or worm gear transmission structure.

Benefits of technology

The simplified transmission structure reduces the failure rate, lowers manufacturing costs, and improves equipment reliability and operational efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224290768U_ABST
    Figure CN224290768U_ABST
Patent Text Reader

Abstract

The utility model discloses a silage harvester's high -throw formula throws material cylinder's rotation adjusting mechanism relates to mechanical equipment field, including throwing material cylinder, throwing material cylinder installation base, arc rack, adjusting gasket, throwing material cylinder installation base is disc -like, is equipped with hydraulic motor mounting bracket on throwing material cylinder installation base, is connected through bolt fastening hydraulic motor on hydraulic motor mounting bracket, is equipped with motor gear on hydraulic motor output shaft, the outer edge of throwing material cylinder bottom is equipped with two adjusting gaskets, and the bottom of adjusting gasket is equipped with arc rack, and the bottom of arc rack is equipped with rack gasket plate, motor gear and arc rack meshed connection, the clearance is formed between throwing material cylinder bottom disc and rack gasket plate, and the size of clearance is adjusted through adjusting gasket. Solve the problem that the existing throwing material cylinder rotation mechanism structure is complex, needs regular lubrication, and the higher problem such as processing cost.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, specifically to a rotation adjustment mechanism for a high-throw throwing cylinder of a silage harvester. Background Technology

[0002] CN202321966820.7, a forage harvester with a rotating throwing cylinder, wherein the rotation of the throwing cylinder of the forage harvester is driven by a worm gear driven by a motor or hydraulic motor, or driven by a chain driven by a motor or hydraulic motor.

[0003] CN201821797636.3, a straw secondary shredding and recycling machine, comprising a chain and a hydraulic motor: an electric motor or hydraulic motor drives the chain through a sprocket, and the chain drives the throwing cylinder to rotate. Chain drive can realize long-distance power transmission and is suitable for models with a large distance between the throwing cylinder and the power source.

[0004] Existing rotary drive technologies for silage harvesters mainly rely on worm gears or chain drives. While these achieve basic functions, they suffer from drawbacks such as complex structures, high costs, and frequent failures. Worm gear drives require rotation limit structures, tie rod assemblies, and hydraulic cylinders, while chain drives necessitate tensioning devices, protective covers, and buffer devices, all increasing system complexity. This invention designs an adjustment mechanism for the rotation of a high-throw silage harvester's rotary drive, enabling the harvester's rotary drive mechanism to become lighter and more efficient. This not only helps reduce manufacturing costs and maintenance difficulties but also significantly improves operational efficiency and equipment reliability, providing a superior solution for modern agriculture. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide a rotation adjustment mechanism for the high-throw throwing cylinder of a silage harvester, solving the problems of complex structure, need for regular lubrication, and high processing cost of existing throwing cylinder rotation mechanisms.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A rotary adjustment mechanism for a high-throw discharge cylinder of a silage harvester includes a discharge cylinder, a discharge cylinder mounting base, an arc-shaped rack, and adjusting shims. The discharge cylinder mounting base is disc-shaped, and a hydraulic motor mounting bracket is provided on the discharge cylinder mounting base. A hydraulic motor is fastened to the hydraulic motor mounting bracket by bolts, and a motor gear is provided on the output shaft of the hydraulic motor. Two adjusting shims are provided on the outer edge of the bottom of the discharge cylinder. An arc-shaped rack is provided at the bottom of the adjusting shims, and a rack pad is provided at the bottom of the arc-shaped rack. The motor gear and the arc-shaped rack are meshed together. A gap is formed between the disc at the bottom of the discharge cylinder and the rack pad, and the size of the gap is adjusted by the adjusting shims.

[0008] The adjusting shim is arc-shaped and has 5 square bolt holes. The arc-shaped rack has 5 round bolt holes. The rack plate has 5 round bolt holes. The bottom disc of the throwing cylinder has 10 square bolt holes. The arc-shaped rack, adjusting shim, and rack plate are fastened together by bolts.

[0009] The concave gap formed by the arc-shaped rack, adjusting shims, and rack pad connection can be rotatably engaged with the throwing cylinder mounting base.

[0010] The beneficial effects of this utility model are as follows: the throwing cylinder, arc-shaped rack, adjusting shims, and rack pad are connected as a whole by square hole bolts. The hydraulic motor drives the motor gear, which in turn drives the arc-shaped rack, which in turn drives the throwing cylinder to rotate. There are two arc-shaped racks and two adjusting shims, which allows for ±90-degree angle adjustment of the throwing cylinder. The gap between the bottom disc of the throwing cylinder and the rack pad is adjusted by increasing or decreasing the number of adjusting shims. The motor directly drives the throwing cylinder to rotate, eliminating the need for chain or worm gear transmission structures, making transmission more convenient, reducing failure points, and simplifying the installation of the whole machine. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the base of the throwing cylinder of this utility model;

[0014] Figure 3 This is a schematic diagram of the rack and pinion rotating component of this utility model;

[0015] Figure 4 This is a cross-sectional view of the rotating component of the throwing cylinder of this utility model;

[0016] Figure 5 This is a cross-sectional view of the rotating cylinder mechanism of this utility model.

[0017] Reference numerals in the attached drawings: 1. Throwing cylinder, 2. Throwing cylinder mounting base, 3. Hydraulic motor mounting bracket, 4. Hydraulic motor, 5. Motor gear, 6. Arc-shaped rack, 7. Adjusting shim, 8. Rack pad. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a rotary adjustment mechanism for a high-throw type throwing cylinder of a silage harvester includes a throwing cylinder 1, a throwing cylinder mounting base 2, an arc-shaped rack 6, and adjusting shims 7. The throwing cylinder mounting base 2 is disc-shaped and has a hydraulic motor mounting bracket 3. A hydraulic motor 4 is fastened to the hydraulic motor mounting bracket 3 by bolts, and a motor gear 5 is provided on the output shaft of the hydraulic motor 4. Two adjusting shims 7 are provided on the outer edge of the bottom of the throwing cylinder 1. An arc-shaped rack 6 is provided at the bottom of the adjusting shims 7, and a rack pad 8 is provided at the bottom of the arc-shaped rack 6. The motor gear 5 and the arc-shaped rack 6 are meshed together. A gap is formed between the bottom disc of the throwing cylinder 1 and the rack pad 8, and the size of the gap is adjusted by the adjusting shims 7.

[0020] like Figure 1 , Figure 3 As shown, the adjusting shim 7 is arc-shaped, with 5 square bolt holes on it, and the arc-shaped rack 6 has 5 round bolt holes; the rack plate 8 has 5 round bolt holes, and the bottom disc of the throwing cylinder 1 has 10 square bolt holes. The arc-shaped rack 6, the adjusting shim 7, and the rack plate 8 are fastened together by bolts.

[0021] like Figure 5 As shown, the concave gap formed by the connection of the arc-shaped rack 6, the adjusting shim 7, and the rack pad 8 is rotatably engaged with the throwing cylinder mounting base 2.

[0022] In use, the present invention has a hydraulic motor mounting bracket 3 (connected by welding) on ​​the base 2 of the throwing cylinder, and the upper part of the base 2 of the throwing cylinder is disc-shaped; the hydraulic motor mounting bracket 3 is equipped with a hydraulic motor 4, which is fastened by bolts; the output shaft of the hydraulic motor 4 is equipped with a motor gear 5, the end face of the gear is positioned by bolts, and the motor gear 5 is connected to the arc-shaped rack 6; the bottom connection structure of the throwing cylinder 1 is disc-shaped, and the disc is provided with 10 square bolt holes; the adjusting shims 7 are arc-shaped, and each adjusting shim 7 is provided with 5 square bolt holes (connected to the bottom disc of the throwing cylinder 1 by bolts), and 2 adjusting shims 7 are provided on the same central surface. An arc-shaped rack 6 is installed at the lower part of the adjusting shim 7, and two arc-shaped racks 6 are installed on the same side. Each arc-shaped rack 6 has five circular bolt holes. A rack pad 8 is installed at the lower part of the arc-shaped rack 6, and two rack pads 8 are installed on the same side. Each rack pad 8 also has five circular bolt holes. The bottom of the throwing cylinder 1 is provided with an adjusting shim 7, the bottom of the adjusting shim 7 is provided with an arc-shaped rack 6, and the bottom of the arc-shaped rack 6 is provided with a rack pad 8. The motor gear 5 and the arc-shaped rack 6 are connected in a cooperative manner. A gap is formed between the bottom disc of the throwing cylinder 1 and the rack pad 8. The concave gap formed by the connection of the rack pad 8 is rotatably engaged with the throwing cylinder mounting base 2.

[0023] The base of the throwing cylinder has two discs and Figure 4 The rotating components of the middle throwing cylinder are connected. The disc of the throwing cylinder mounting base 2 is set between the bottom disc of the throwing cylinder 1 and the rack and pinion plate 8. The throwing cylinder 1, the arc rack 6, the adjusting shim 7, and the rack and pinion plate 8 are connected as one unit by bolts. The hydraulic motor 4 set on the hydraulic motor mounting bracket 3 drives the motor gear 5, the motor gear 5 drives the arc rack 6, and the arc rack 6 drives the throwing cylinder 1 to rotate around the disc of the throwing cylinder mounting base 2.

[0024] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A rotary adjustment mechanism for a high-throw type threshing cylinder of a silage harvester, characterized in that, The device includes a throwing cylinder (1), a throwing cylinder mounting base (2), an arc-shaped rack (6), and adjusting shims (7). The throwing cylinder mounting base (2) is disc-shaped and has a hydraulic motor mounting bracket (3). A hydraulic motor (4) is fastened to the hydraulic motor mounting bracket (3) by bolts. A motor gear (5) is provided on the output shaft of the hydraulic motor (4). Two adjusting shims (7) are provided on the outer edge of the bottom of the throwing cylinder (1). An arc-shaped rack (6) is provided at the bottom of the adjusting shims (7). A rack pad (8) is provided at the bottom of the arc-shaped rack (6). The motor gear (5) and the arc-shaped rack (6) are meshed together. A gap is formed between the bottom disc of the throwing cylinder (1) and the rack pad (8). The size of the gap is adjusted by adjusting shims (7).

2. The rotation adjustment mechanism of the high-throw type throwing cylinder of a silage harvester according to claim 1, characterized in that, The adjusting shim (7) is arc-shaped, with 5 square bolt holes on the adjusting shim (7) and 5 round bolt holes on the arc-shaped rack (6); 5 round bolt holes are provided on the rack pad (8); 10 square bolt holes are provided on the bottom disc connection of the throwing cylinder (1); the arc-shaped rack (6), adjusting shim (7), and rack pad (8) are fastened together by bolts.

3. The rotation adjustment mechanism of the high-throw type throwing cylinder of a silage harvester according to claim 2, characterized in that, The concave gap formed by the connection of the arc-shaped rack (6), the adjusting shim (7), and the rack pad (8) can be rotatably engaged with the throwing cylinder mounting base (2).