Chain cutter header device and silage harvester

Abstract

The utility model discloses a chain cutter header device and a silage harvester, comprising a chain plate, the chain plate comprises: a frame used as a structural support; the chain cutter assembly is arranged on the rack and used for being driven to cut the silage crops; the driving device is used for providing power; the transmission mechanism is arranged between the driving device and the chain cutter assembly and used for being driven by the driving device to drive the chain cutter assembly to act; the transmission mechanism comprises a driving wheel, a driven wheel and a tensioning mechanism, wherein the driving wheel and the driven wheel are arranged on the rack, and the tensioning mechanism is connected to the rack and the driven wheel and used for adjusting the position of the driven wheel.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular, to a chain cutter header device. Furthermore, this utility model also relates to a silage harvester including the aforementioned chain cutter header device. Background Technology

[0002] For silage harvesters, the header is one of the core components. It primarily cuts the silage crop at the root, collects and transports it to the next working component, the feeding device. From there, the crop is fed into the chopping device, where the cutters shred it into pieces. Finally, an accelerator and a throwing device throw the crop into a receiving trolley, completing the silage harvesting process. The chain cutter is a crucial component of the chain-driven header. During assembly, the tension of the chain cutter is maintained by adjusting the driven wheels of the header. Furthermore, silage harvesters have a heavy workload, requiring continuous cutting operations. However, the harsh environment in the field inevitably leads to cutting into hard objects such as gravel and metal, which can severely damage the chain cutter and render it ineffective. To ensure the continuous efficiency of the silage harvester, the chain cutter must be kept in optimal working condition. This means ensuring the sharpness of the chain cutter and allowing for quick and timely replacement when significant wear or breakage occurs. During replacement, the chain cutter's tension must be maintained.

[0003] Among existing header technologies, disc headers are the most common. They use a gearbox to drive the working parts, cutting the crop before feeding it into the feed device. Chain cutter headers are more effective than disc headers at harvesting lodged crops, but they have disadvantages such as complex structure, high manufacturing costs, and difficult maintenance. Especially when replacing the chain cutters, due to the large number of chain cutters and the frequent maintenance and replacement, the tension of the chain cutter assembly becomes crucial. Inadequate tension can lead to jamming, abnormal noise, grass blockage, or even chain cutters interfering with other components and flying off, causing injury. Utility Model Content

[0004] This utility model provides a chain cutter header device and a silage harvester to solve the technical problem of difficult repair and replacement when the chain cutter header is damaged in the prior art.

[0005] According to one aspect of the present invention, a chain cutter table device is provided, comprising a chain disc, the chain disc comprising:

[0006] The frame serves as structural support.

[0007] Chain cutter assembly, mounted on the frame, is used for driven cutting of silage crops;

[0008] A drive unit, used to provide power;

[0009] The transmission mechanism is arranged between the driving device and the chain cutter assembly, and is used for driving the chain cutter assembly to move under the driving of the driving device. The transmission mechanism comprises a driving wheel, a driven wheel and a tensioning mechanism respectively arranged on the rack and connected to the rack and the driven wheel, and the tensioning mechanism is used for adjusting the position of the driven wheel.

[0010] As a further improvement of the above technical solution, the rack comprises a chain disc rack, a cutter rack arranged on the chain disc rack and a slide arranged on the chain disc rack. The chain cutter assembly comprises a mounting seat for mounting the driven wheel, and the mounting seat is slidingly connected to the slide.

[0011] As a further improvement of the above technical solution, the chain cutter assembly comprises a moving cutter and a fixed cutter arranged on the cutter rack. The moving cutters are uniformly distributed along the circumference of the chain disc rack. The moving cutters are slidingly connected to the chain disc rack through a pin shaft. The circumferences of the driving wheel and the driven wheel are respectively uniformly distributed with tooth-shaped grooves for cooperating with the pin shaft.

[0012] As a further improvement of the above technical solution, the tensioning mechanism comprises:

[0013] A cylinder is used as a structural carrier, and a first end of the cylinder is sealed;

[0014] A rod is arranged in the cylinder;

[0015] An elastic member is arranged in the cylinder and sleeved on the rod;

[0016] A first limiting assembly is connected to the rod, and is used for adjusting the axial position relative to the rod and adjusting the compression amount of the elastic member;

[0017] A second limiting assembly is connected to the rod, and is used for adjusting the axial position of the rod connected to the driven wheel and adjusting the position of the driven wheel.

[0018] As a further improvement of the above technical solution, the rod is a lead screw. The first limiting assembly comprises a fixed plate sleeved on the rod, and a first nut and a second nut threadedly connected to the rod. The second limiting assembly comprises a third nut and a fourth nut threadedly connected to the rod.

[0019] As a further improvement of the above technical solution, the rod is provided with a thrust sleeve for limiting the adjustment range of the first limiting assembly.

[0020] As a further improvement of the above technical solution, the tensioning mechanism further comprises a mounting plate connected to the cylinder, and the mounting plate is used for connecting to the rack.

[0021] As a further improvement of the above technical solution, the driven wheel comprises a rotating shaft connected to the mounting seat, a wheel disc rotatably connected to the rotating shaft, and a pressing plate arranged on the wheel disc and rotatably connected to the rotating shaft.

[0022] As a further improvement of the above technical solution, the mounting seat comprises a mounting frame and a sliding block arranged on the mounting frame and used for cooperating with the sliding rail; the rotating shaft is connected to the mounting frame, and one side of the mounting frame is provided with a connecting plate used for being connected to the tensioning mechanism.

[0023] According to another aspect of the present application, a silage harvester is also provided, which comprises the chain cutter header device.

[0024] The present application has the following beneficial effects:

[0025] The chain cutter header device is powered by the driving device, and the chain cutter assembly is driven to move by the driving wheel and the chain transmission, and the driven wheel rotates synchronously with the chain cutter assembly. The position of the driven wheel is adjusted by the tensioning mechanism, so that the chain cutter is quickly tensioned when the chain cutter header is assembled or the chain cutter is loose after a long time operation, or the position of the driven wheel is adjusted to replace the chain cutter assembly. The structure is simple, the maintenance and replacement operation is simple and efficient.

[0026] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings that form a part of this application are intended to provide a further understanding of the present application, and the illustrative embodiments of the present application and their description serve to explain the present application without constituting an improper limitation thereof. In the drawings:

[0028] Figure 1 is a structural schematic of the preferred embodiment of the present application Figure One ;

[0029] Figure 2 is a structural schematic of the preferred embodiment of the present application Figure Two ;

[0030] Figure 3 is a partial structural schematic of the transmission mechanism of the preferred embodiment of the present application

[0031] Figure 4 is a structural schematic of the tensioning mechanism of the preferred embodiment of the present application

[0032] Figure 5 is a structural schematic of the chain cutter assembly of the preferred embodiment of the present application

[0033] Figure 6 is a driven wheel structure schematic view of the preferred embodiment of the utility model;

[0034] Figure 7 is the mounting seat structure schematic view of the preferred embodiment of the utility model.

[0035] Legend:

[0036] 1, rack; 11, chain disc frame; 12, tool holder; 13, slide; 2, transmission mechanism; 21, tensioning mechanism; 211, cylinder; 212, connecting plate; 213, elastic member; 214, thrust sleeve; 215, fixed plate; 216, rod body; 217, first nut; 218, second nut; 219, third nut; 2110, fourth nut; 2111, bolt; 22, driven wheel; 221, wheel disc; 222, pressing plate; 223, rotating shaft; 23, mounting seat; 231, mounting frame; 232, sliding block; 3, chain cutter assembly; 31, fixed cutter; 32, movable cutter; 33, pin shaft; 4, drive wheel. DETAILED DESCRIPTION

[0037] The embodiments of the utility model are described in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following.

[0038] Figure 1 is the structure schematic view of the preferred embodiment of the utility model Figure One ; Figure 2 is the structure schematic view of the preferred embodiment of the utility model Figure Two ; Figure 3 is the transmission mechanism partial structure schematic view of the preferred embodiment of the utility model; Figure 4 is the tensioning mechanism structure schematic view of the preferred embodiment of the utility model; Figure 5 is the chain cutter assembly structure schematic view of the preferred embodiment of the utility model; Figure 6 is the driven wheel structure schematic view of the preferred embodiment of the utility model; Figure 7 is the mounting seat structure schematic view of the preferred embodiment of the utility model.

[0039] As shown in Figures 1 to 7 , the chain cutter cutting table device of the embodiment, including chain disc, chain disc includes:

[0040] Rack 1 is used as a structure support;

[0041] Chain cutter assembly 3 is arranged on rack 1 and is used for cutting silage crops under driving action;

[0042] Driving device is used for providing power;

[0043] The transmission mechanism 2 is arranged between the driving device and the chain cutter assembly 3, and is used for driving the chain cutter assembly 3 to act under the driving of the driving device; the transmission mechanism 2 comprises a driving wheel 4, a driven wheel 22 and a tensioning mechanism 21 which are respectively arranged on the rack 1 and are respectively connected to the rack 1 and the driven wheel 22, and the tensioning mechanism 21 is used for adjusting the position of the driven wheel 22.

[0044] In actual application, the two chain discs are arranged in left-right symmetry on the harvester.

[0045] It can be understood that the chain cutter cutting table device is powered by the driving device, the driving wheel 4 drives the chain cutter assembly 3 to act through chain transmission, the driven wheel 22 rotates synchronously with the chain cutter assembly 3, and the position of the driven wheel 22 is adjusted through the tensioning mechanism 21, so that the chain cutter is quickly tensioned when the chain cutter cutting table is assembled or when the chain cutter is loose after long-time operation, or the position of the driven wheel 22 is adjusted to replace the chain cutter assembly 3, and the structure is simple and the working efficiency is high.

[0046] In the embodiment, the rack 1 comprises a chain disc rack 11, a cutter rack 12 arranged on the chain disc rack 11 and a sliding way 13 arranged on the chain disc rack 11, the chain cutter assembly 3 comprises a mounting seat 23 for mounting the driven wheel 22, the mounting seat 23 is slidingly connected to the sliding way 13, and the direction of the sliding way 13 is the moving tensioning direction of the driven wheel 22; the action direction of the tensioning mechanism 21 matches the direction of the sliding way 13.

[0047] Specifically, the driven wheel 22 comprises a rotating shaft 223 connected to the mounting seat 23, a wheel disc 221 rotatingly connected to the rotating shaft 223 and a pressing plate 222 arranged on the wheel disc 221 and rotatingly connected to the rotating shaft 223; the pressing plate 222 has a limiting protection effect on the wheel disc 221.

[0048] The mounting seat 23 comprises a mounting rack 231 and sliding blocks 232 arranged on the mounting rack 231 and used for cooperating with the sliding way 13, the two sliding blocks 232 are oppositely arranged, that is, the sliding blocks 232 are in a clamping state of the sliding way 13, have a limiting effect, and are more smooth and stable in movement; the rotating shaft 223 is connected to the mounting rack 231, one side of the mounting rack 231 is provided with a connecting plate 212 used for being connected to the tensioning mechanism 21, and the tensioning mechanism 21 acts on the connecting plate 212 to drive the driven wheel 22 to move along the direction of the sliding way 13.

[0049] In the embodiment, the chain cutter assembly 3 comprises a moving cutter 32 and a fixed cutter 31 arranged on the cutter rack 12, the moving cutter 32 is uniformly distributed along the circumference of the chain disc rack 11, the moving cutter 32 is slidingly connected to the chain disc rack 11 through a pin shaft 33, and the circumferences of the driving wheel 4 and the driven wheel 22 are respectively and uniformly provided with tooth-shaped grooves used for cooperating with the pin shaft 33; when the chain cutter is damaged, the tensioning mechanism 21 drives the driven wheel 22 to retreat and loosen the chain cutter, and the fixed cutter 31 or the moving cutter 32 and the pin shaft 33 at the damaged position can be replaced, and after the replacement is completed, the chain cutter can be tensioned again, and the operation is simple.

[0050] In this embodiment, the tensioning mechanism 21 comprises:

[0051] a cylinder 211, used as a structural carrier, the first end of the cylinder 211 being sealed;

[0052] a rod 216, passing through the cylinder 211;

[0053] a spring 213, arranged in the cylinder 211 and sleeved on the rod 216; the spring 213 is a compression spring;

[0054] a first limiting assembly, connected to the rod 216, for adjusting the axial position of the rod 216 and thus adjusting the compression amount of the spring 213;

[0055] a second limiting assembly, connected to the rod 216, for adjusting the axial position of the rod 216 connected with the driven wheel 22 and thus adjusting the position of the driven wheel 22.

[0056] In this embodiment, the tensioning mechanism 21 further comprises a mounting plate connected to the cylinder 211, the mounting plate being connected with the rack 1 through a bolt 2111, the rod 216 being connected with the driven wheel 22 through the second limiting assembly, the cylinder 211 being connected with the rack 1 to keep relative fixation, the spring 213 acting on the rod 216 after the compression amount of the spring 213 is adjusted through the first limiting assembly, so as to tension the chain knife of the driven wheel 22; the axial connection position of the rod 216 and the driven wheel 22 can be adjusted through the second limiting assembly, so as to match the appropriate compression amount of the spring 213 and ensure that the spring 213 has sufficient elastic force acting on the driven wheel 22 to keep tensioning.

[0057] In this embodiment, the rod 216 is a lead screw, the first limiting assembly comprises a fixed plate 215 sleeved on the rod 216 and a first nut 217 and a second nut 218 threadedly connected with the rod 216, and the second limiting assembly comprises a third nut 219 and a fourth nut 2110 threadedly connected with the rod 216; a through hole is formed in the connecting plate 212 for the lead screw to pass through, the third nut 219 and the fourth nut 2110 are respectively arranged on the two sides of the connecting plate 212 after locking, and the connecting plate 212 can be fixed at the current axial position of the rod 216 after being fixed, the connecting position of the driven wheel 22 can be adjusted by adjusting the positions of the third nut 219 and the fourth nut 2110; the axial position of the fixed plate 215 is adjusted by tightening the first nut 217 to compress the spring 213 and adjust the compression amount, and then the first nut 217 is locked and fixed by the second nut 218 to prevent loosening and keep the driven wheel 22 tensioned.

[0058] Further, the rod 216 is provided with a thrust sleeve 214 for limiting the adjustment range of the first limiting assembly, the compression range of the spring 213 by the first limiting assembly is limited by the thrust sleeve 214 to avoid damage.

[0059] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A chain cutter table device, characterized in that, Includes a chain disk, the chain disk comprising: The frame (1) is used as a structural support; Chain knife assembly (3), mounted on frame (1), is used to cut silage crops by a driven action; A drive unit, used to provide power; The transmission mechanism (2) is located between the drive device and the chain cutter assembly (3) and is used to drive the chain cutter assembly (3) to move by the drive device. The transmission mechanism (2) includes a drive wheel (4) and a driven wheel (22) respectively located on the frame (1) and a tensioning mechanism (21) respectively connected to the frame (1) and the driven wheel (22). The tensioning mechanism (21) is used to adjust the position of the driven wheel (22). The tensioning mechanism (21) includes: A cylindrical body (211) is used as a structural carrier, and the first end of the cylindrical body (211) is sealed. A rod (216) is inserted through the cylinder (211); An elastic element (213) is disposed on the cylinder (211) and sleeved on the rod (216); The first limiting component is connected to the rod (216) and is used to adjust the axial position relative to the rod (216) and thereby adjust the compression of the elastic element (213); The second limiting component is connected to the rod (216) and is used to adjust the axial position of the rod (216) in conjunction with the driven wheel (22), thereby adjusting the position of the driven wheel (22).

2. The chain cutter table device according to claim 1, characterized in that, The frame (1) includes a chain rack (11), a knife holder (12) disposed on the chain rack (11), and a slide rail (13) disposed on the chain rack (11). The chain knife assembly (3) includes a mounting seat (23) for mounting the driven wheel (22), and the mounting seat (23) is slidably connected to the slide rail (13).

3. The chain cutter table device according to claim 2, characterized in that, The chain cutter assembly (3) includes a moving cutter (32) and a fixed cutter (31) disposed on the cutter holder (12). The moving cutter (32) is evenly distributed along the circumference of the chain disc frame (11). The moving cutter (32) is slidably connected to the chain disc frame (11) by a pin (33). The drive wheel (4) and the driven wheel (22) are respectively evenly distributed with toothed grooves for cooperating with the pin (33) in the circumference.

4. The chain cutter table device according to claim 1, characterized in that, The rod (216) is a lead screw. The first limiting component includes a fixing plate (215) sleeved on the rod (216) and a first nut (217) and a second nut (218) threaded to the rod (216). The second limiting component includes a third nut (219) and a fourth nut (2110) threaded to the rod (216).

5. The chain cutter table device according to claim 4, characterized in that, The rod (216) is provided with a thrust sleeve (214) for limiting the adjustment range of the first limiting component.

6. The chain cutter table device according to claim 1, characterized in that, The tensioning mechanism (21) also includes a mounting plate connected to the cylinder (211), the mounting plate being used to connect to the frame (1).

7. The chain cutter table device according to claim 2, characterized in that, The driven wheel (22) includes a rotating shaft (223) connected to the mounting base (23), a wheel (221) rotatably connected to the rotating shaft (223), and a pressure plate (222) disposed on the wheel (221) and rotatably connected to the rotating shaft (223).

8. The chain cutter table device according to claim 7, characterized in that, The mounting base (23) includes a mounting frame (231) and a slider (232) disposed on the mounting frame (231) for cooperating with the slide rail (13); the rotating shaft (223) is connected to the mounting frame (231), and a connecting plate (212) for connecting with the tensioning mechanism (21) is provided on one side of the mounting frame (231).

9. A silage harvester, characterized in that, The application is equipped with the chain cutter table device according to any one of claims 1-8.

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