Special cutter device for rape combine harvester

Abstract

The utility model discloses a special cutting knife device for a rape combine harvester, which comprises a transverse cutting knife plate, a vertical cutting knife plate and a worm transmission connecting assembly, two ends of the transverse cutting knife plate are respectively connected with an eccentric wheel assembly through a first bolt, a reinforcing plate rib piece is fixedly arranged on the vertical cutting knife plate, a sliding piece is fixedly arranged on the reinforcing plate rib piece, and the worm transmission connecting assembly is connected with the worm transmission connecting assembly. The worm transmission connecting assembly is provided with a sliding groove for the sliding part to slide. The vertical cutting knife plate is provided with the reinforcing plate rib piece, the thickness and the width of the vertical cutting knife plate are increased, the worm transmission connecting assembly is provided with the sliding groove, the original sliding mode is changed, the reliability of the worm transmission connecting assembly and the stability during working are improved, and the service life of the worm transmission connecting assembly is prolonged. The problems of damage, unstable work and the like caused by collision and friction between the worm transmission connecting assembly and the side vertical moving knife assembly are reduced, the cutting capacity and the cutting effect of the cutting knife are improved, and the loss of the header is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of harvester knives, in particular to a special-purpose cutter device for a rapeseed combine harvester. Background Art

[0002] Rapeseed combine harvesting is a more efficient way of harvesting, which saves time and labor, is conducive to cost reduction and income increase in rapeseed cultivation, and is a more reasonable way of harvesting rapeseed. However, this method has high requirements for the special cutting knife device of the rapeseed combine harvester. At present, the mechanized harvesting of rapeseed has a greater impact on the cutting platform. For example, the Chinese invention patent with application number 201410375673.5 discloses a full-feed rapeseed combine harvester, which includes a machine body, a power system, a cutting platform, a walking device, a threshing device and a stubble processing device located at the front of the machine body. The cutting platform is arranged at the front end of the machine body, and includes a component of a double-action cross-cutting knife and vertical cutting knives on both sides, wherein the double-action cross-cutting knife is located at Below the front end of the harvesting platform, the vertical cutting blades are two components, located on both sides of the front end of the harvesting platform. The harvester can effectively harvest upright rapeseed of various heights and lodging rapeseed of different heights, and can also harvest rapeseed of different maturity levels. However, the worm transmission components of its harvesting platform are easily damaged, especially when cutting and transplanting rapeseed with thick stems. The cutting force required is large, the harvesting platform vibrates greatly, and it cannot work smoothly, which will cause damage to the harvesting platform components. The reliability is not high, and it cannot work for a long time, resulting in time and work losses, and greater harvesting losses. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the problem to be solved by the present invention is to provide a special cutter device for rapeseed combine harvester to improve the reliability and stability of the cutting platform during operation, enhance the cutting effect of the cutter and reduce the loss of the cutting platform.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] The utility model discloses a special cutting knife device for a rapeseed combine harvester, comprising a transverse cutting knife plate, a vertical cutting knife plate and a worm transmission connection assembly, wherein both ends of the transverse cutting knife plate are respectively connected to an eccentric wheel assembly through a first bolt, a reinforcing plate rib is fixedly provided on the vertical cutting knife plate, a sliding member is fixedly provided on the reinforcing plate rib, and the worm transmission connection assembly is arranged on one of the eccentric wheel assemblies and is provided with a sliding groove for the sliding member to slide.

[0006] Preferably, the worm gear transmission connection assembly includes a rocker arm pull rod, a double ball pin shaft, a first fisheye ball rod pull rod and a second fisheye ball rod pull rod. The rocker arm pull rod is provided with the sliding groove at one end close to the reinforcing plate rib, and the other end is connected to the first fisheye ball rod pull rod. The other end of the first fisheye ball rod is connected to the upper ball head of the double ball pin shaft, and the second fisheye ball rod is connected to the lower ball head of the double ball pin shaft. The double ball pin shaft is arranged on one of the eccentric wheel components.

[0007] Preferably, the sliding member includes a bearing, a sleeve and a second bolt, the sleeve is fixed on the reinforcing plate rib and has a thread inside, the bearing is sleeved on the second bolt and slides in the slide groove, and the second bolt is threadedly connected to the sleeve.

[0008] Preferably, a limiting sleeve is further included, wherein the limiting sleeve is arranged between the cross-cutting blade and the eccentric wheel assembly, and the first bolt is arranged inside the limiting sleeve.

[0009] To sum up, due to the adoption of the above-mentioned technical scheme, the beneficial effects of the present invention are as follows: the worm drive connection assembly of the present invention is provided with a sliding groove, which changes the original sliding mode, improves the reliability and stability of the worm drive connection assembly during operation, reduces the problems of damage caused by collision and friction between the worm drive connection assembly and the side moving knife assembly, and unstable operation, improves the cutting ability and cutting effect of the cutting knife, and effectively reduces the loss of the cutting table. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Shown is a front axonometric view of the present invention.

[0011] Figure 2 Shown is a rear axonometric view of the present invention.

[0012] Figure 3 Shown is a schematic structural diagram of a sliding member of the present invention.

[0013] Legend:

[0014] 1. Horizontal cutting blade; 2. Vertical cutting blade; 3. Worm gear connection assembly; 301. Rocker arm pull rod; 302. Double ball pin; 303. First fisheye ball pull rod; 304. Second fisheye ball pull rod; 305. Slide; 4. Eccentric wheel assembly; 5. First bolt; 6. Reinforcement plate; 7. Sliding part; 701. Bearing; 702. Bushing; 703. Second bolt; 8. Limit sleeve. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Example 1

[0017] like Figure 1-3 The embodiment shown provides a special cutting knife device for a rapeseed combine harvester, including a transverse cutting knife plate 1, a vertical cutting knife plate 2 and a worm gear transmission connection assembly 3. The transverse cutting knife plate 1, the vertical cutting knife plate 2 and the worm gear transmission connection assembly 3 are all arranged on the cutting table frame of the rapeseed combine harvester. A number of cutting knives are arranged on the transverse cutting knife plate 1 and the vertical cutting knife plate 2. The cutting knives on the transverse cutting knife plate 1 are used to cut the rapeseed stems, and the cutting knives on the vertical cutting knife plate 2 are used to cut the rapeseed stems that are staggered and wrapped around the transverse cutting knife plate 1. The two ends of the transverse cutting knife plate 1 are respectively connected to an eccentric wheel assembly 4 through a first bolt 5. The eccentric wheel assembly 4 is installed on the cutting table assembly frame for driving the transverse cutting knife to move left and right to achieve cutting. A reinforcing plate rib 6 is fixed on the vertical cutting knife plate 2, and a sliding member 7 is fixed on the reinforcing plate rib 6. The worm gear transmission connection assembly 3 is arranged on one of the eccentric wheel assemblies 4 and is provided with a slide groove 305 for the sliding of the sliding member 7.

[0018] The working principle and usage process of this embodiment are as follows:

[0019] The utility model discloses a special cutting blade device for rapeseed combine harvester, wherein the vertical cutting blade 2 and the worm drive connecting assembly 3 are both arranged on the header assembly frame, the input end of the worm drive connecting assembly 3 is connected to the output end of the driving motor of the rapeseed combine harvester, the cross-cutting blade 1 is connected to the header assembly frame via the eccentric wheel assembly 4, the driving motor drives the worm drive connecting assembly 3 to move forward and backward, driving the eccentric wheel assembly 4 to swing around the fixed point with the header assembly frame, thereby driving the cross-cutting blade on the cross-cutting blade 1 to move left and right. The cutting blade on the cross-cutting blade 1 can effectively shear the rapeseed stems, and the cutting blade on the vertical cutting blade 2 can cut the staggered and entangled rapeseed stems and separate them into rows and zones, dividing them into the to-be-harvested area and the harvesting area, thereby preventing the rapeseed in the to-be-harvested area from being entangled with the combine harvester on the header, causing damage to the header and increasing harvesting losses. The worm gear connecting assembly 3 is provided with a slide groove 305, and the vertical cutting blade 2 is connected to the worm gear connecting assembly 3 through the sliding member 7. During the forward and backward displacement of the worm gear connecting assembly 3, the slide groove 305 is driven to swing up and down. When the slide groove 305 swings downward, it drives the sliding member 7 to move downward while sliding from the first position to the second position in the slide groove 305. When the slide groove 305 swings upward, it drives the sliding member 7 to move upward while sliding from the second position to the first position in the slide groove 305, thereby driving the cutting knife on the vertical cutting blade 2 to move up and down to achieve cutting. Compared with the connection method of the vertical cutting blade 2 and the worm gear connecting assembly 3 in the prior art, the vertical cutting blade 2 in this scheme is slidably connected to the worm gear connecting assembly 3 through the sliding member 7, which can reduce the problems of component damage caused by the collision and friction between the two and the unstable operation of the cutting table caused by the violent collision.

[0020] Example 2

[0021] like Figure 1-3As shown, this embodiment is developed on the basis of embodiment 1. Specifically, this embodiment defines the specific structure of the worm gear transmission connection component 3, and the worm gear transmission connection component 3 includes a rocker arm pull rod 301, a double ball head pin shaft 302, a first fisheye ball head pull rod 303 and a second fisheye ball head pull rod 304. The rocker arm pull rod 301, the double ball head pin shaft 302, the first fisheye ball head pull rod 303 and the second fisheye ball head pull rod 304 are all standard parts on the market. Those skilled in the art can select the corresponding size according to their needs. The rocker arm pull rod 301 is provided with the sliding groove 305 at one end close to the reinforcing plate rib 6, and the other end is connected to the first fisheye ball head pull rod 303. The middle part is connected to the cutting table assembly frame through a pin shaft, and the other end of the first fisheye ball head pull rod 303 is connected to the double ball head pin shaft 3 02, one end of the second fisheye ball head pull rod 304 is connected to the lower ball head of the double ball head pin shaft 302, and the other end is connected to the output end of the driving motor of the rapeseed combine harvester. The double ball head pin shaft 302 is set on the eccentric wheel assembly 4. During operation, the driving motor drives the second fisheye ball head pull rod 304 to move forward and backward, and the second fisheye ball head pull rod 304 drives an eccentric wheel assembly 4 to swing through the double ball head pin shaft 302, thereby driving the cutting knife on the horizontal cutting plate 1 to move left and right for cutting. The second fisheye ball head pull rod 304 drives the first fisheye ball head pull rod 303 to move forward and backward through the double ball head pin shaft 302, thereby driving the rocker arm pull rod 301 to swing around the connection point with the cutting table assembly frame in the middle, thereby driving the sliding part 7 to move up and down, and then driving the cutting knife on the vertical cutting plate 2 to move up and down for cutting.

[0022] Example 3

[0023] like Figure 3 As shown, this embodiment is developed based on the first embodiment. Specifically, this embodiment defines the specific structure of the sliding member 7. The sliding member 7 includes a bearing 701, a sleeve 702, and a second bolt 703. The sleeve 702 is fixed to the reinforcing plate rib 6 and has a threaded interior. The bearing 701 is sleeved on the second bolt 703 and slides within the chute 305. The second bolt 703 is threadedly connected to the sleeve 702. The utility model sleeves the bearing 701 on the second bolt 703, and the gap between the bearing 701 and the chute 305 is small, thereby preventing collision between the two, making the header operation smoother. At the same time, when the original component is damaged and the worm drive connection assembly 3 needs to be replaced, the utility model provides the sliding member 7. After long-term operation, the worm drive connection assembly 3 will not be damaged. Only the bearing 701 will be damaged after long-term wear. Only the bearing 701 needs to be replaced, which can speed up the replacement of damaged components and avoid delaying the farming season.

[0024] Example 4

[0025] like Figure 1-2 As shown, this embodiment is developed on the basis of embodiment 1 in order to enhance the stability of the cross-cutting blade 1. Specifically, it also includes a limit sleeve 8, which is arranged between the cross-cutting blade 1 and the eccentric wheel assembly 4. The first bolt 5 is arranged inside the limit sleeve 8. It should be noted that when the harvester moves forward and the cross-cutting blade works, the limit sleeve 8 can abut the first bolt 5 to produce left and right and backward displacement, thereby ensuring that the cross-cutting blade 1 does not vibrate and works stably.

[0026] The above description of the embodiments is intended to enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A special cutter device for rapeseed combine harvester, characterized by: The invention comprises a transverse cutting blade (1), a vertical cutting blade (2) and a worm drive connecting assembly (3), wherein the two ends of the transverse cutting blade (1) are connected to an eccentric wheel assembly (4) via a first bolt (5), a reinforcing plate rib (6) is fixed on the vertical cutting blade (2), a sliding member (7) is fixed on the reinforcing plate rib (6), and the worm drive connecting assembly (3) is arranged on the eccentric wheel assembly (4) and is provided with a sliding groove (305) for the sliding member (7) to slide.

2. The special cutter device for rapeseed combine harvester according to claim 1, characterized in that: The worm gear transmission connection assembly (3) includes a rocker arm pull rod (301), a double ball head pin shaft (302), a first fisheye ball head pull rod (303) and a second fisheye ball head pull rod (304), wherein the rocker arm pull rod (301) is provided with the slide groove (305) at one end close to the reinforcing plate rib (6), and the other end is connected to the first fisheye ball head pull rod (303), the other end of the first fisheye ball head pull rod (303) is connected to the upper ball head of the double ball head pin shaft (302), and the second fisheye ball head pull rod (304) is connected to the lower ball head of the double ball head pin shaft (302), and the double ball head pin shaft (302) is arranged on an eccentric wheel assembly (4).

3. The special cutter device for rapeseed combine harvester according to claim 1, characterized in that: The sliding member (7) includes a bearing (701), a sleeve (702) and a second bolt (703); the sleeve (702) is fixed on the reinforcing plate rib (6) and has a thread inside; the bearing (701) is sleeved on the second bolt (703) and slides in the sliding groove (305); the second bolt (703) is threadedly connected to the sleeve (702).

4. The special cutter device for rapeseed combine harvester according to claim 1, characterized in that: It also includes a limiting sleeve (8), which is arranged between the cross-cutting blade (1) and the eccentric wheel assembly (4), and the first bolt (5) is arranged inside the limiting sleeve (8).

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