Three-section folding scraper mechanism for paddy field beating machine

Abstract

The utility model discloses a three-section folding scraper blade mechanism for a paddy field beating machine, which comprises a suspension bracket and a scraper blade assembly, a left hood assembly and a right hood assembly are hinged on the left side and the right side of the suspension bracket, and oil cylinders I are respectively arranged between the left hood assembly and the suspension bracket and between the right hood assembly and the suspension bracket; the scraper blade assembly comprises a left scraper blade, a telescopic scraper blade and a right scraper blade which are sequentially hinged together, the left scraper blade is correspondingly located on the front side of the left hood assembly, the telescopic scraper blade is correspondingly located on the front side of the suspension frame, and the right scraper blade is correspondingly located on the front side of the right hood assembly. And a group of scraper connecting mechanisms are respectively arranged between the left scraper and the left hood assembly and between the right scraper and the right hood assembly. The length of the telescopic scraping plate can be dynamically adjusted in real time, and the telescopic scraping plate and the scraping plates on the left side and the right side have good cooperative and synchronous adaptability, so that good smoothness is ensured when the scraping plate assembly is folded or unfolded; when the paddy field beating machine is in a flattening operation state, the scraper assembly is located on the same horizontal plane, and the operation quality of the paddy field beating machine can be improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a three-section folding scraper mechanism for a paddy field pulverizer. Background Technology

[0002] In southern my country, paddy fields are the main type of arable land, with rice being the primary crop. Before transplanting rice seedlings, the paddy fields need to be pulped. The emergence of paddy field pulping machines has greatly facilitated the pulping and leveling operations, effectively reducing manual labor and lowering the cost of cultivating paddy fields. At the same time, it has greatly improved the sowing efficiency of rice, achieving the goal of increasing production and efficiency.

[0003] Currently, the scrapers used in paddy field pulverizers are mainly of two types: one-piece and two-section folding. One-piece scrapers, because they cannot be folded, are unsuitable for use on folding pulverizers. The problem with two-section folding scrapers in paddy field pulverizing operations is that, since the two scraper sections on the left and right sides are independently mounted on their respective left and right shroud assemblies, misalignment or warping easily occurs when the two sections are flattened and aligned. This makes it difficult to ensure that the two scraper sections on both sides are on the same horizontal plane, resulting in poor flatness of the paddy field after pulverizing. With prolonged use, the misalignment or warping of the flattened scraper sections becomes more severe. Therefore, this utility model proposes a three-section folding scraper mechanism for paddy field pulverizers to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a three-section folding scraper mechanism for a paddy field pulverizer. The scraper assembly is designed with a left scraper, a telescopic scraper, and a right scraper connected in sequence by hinges. The left scraper is connected to the left machine cover assembly, and the right scraper is connected to the right machine cover assembly by a set of scraper connecting mechanisms. When the left and right scrapers fold or unfold synchronously with the left and right machine cover assemblies, the length of the telescopic scraper can be dynamically adjusted in real time, ensuring good coordination and synchronization with the left and right scrapers. This ensures smooth operation of the three-section folding scraper mechanism during folding or unfolding. When the paddy field pulverizer is in the unfolded operation state, the three sequentially hinged scrapers—left, telescopic, and right—are all on the same horizontal plane, ensuring good overall consistency and effectively preventing misalignment and warping. This ensures excellent flatness of the scraper assembly and helps improve the operating quality of the paddy field pulverizer.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a three-section folding scraper mechanism for a paddy field threshing machine, including a suspension frame and a scraper assembly. The suspension frame is hinged to a left machine cover assembly on the left side and a right machine cover assembly on the right side. A hydraulic cylinder is provided between the left machine cover assembly and the suspension frame for driving the left machine cover assembly to fold or flatten, and a hydraulic cylinder is provided between the right machine cover assembly and the suspension frame for driving the right machine cover assembly to fold or flatten. The scraper assembly includes a left scraper, a telescopic scraper, and a right scraper that are sequentially hinged together. The left scraper is located on the front side of the left machine cover assembly, the telescopic scraper is located on the front side of the suspension frame, and the right scraper is located on the front side of the right machine cover assembly. A set of scraper connecting mechanisms is provided between the left scraper and the left machine cover assembly, and between the right scraper and the right machine cover assembly.

[0006] This invention relates to a three-section folding scraper mechanism for a paddy field pulverizer. The scraper assembly is designed with a left scraper, a telescopic scraper, and a right scraper sequentially hinged together. The left scraper is connected to the left machine cover assembly, and the right scraper is connected to the right machine cover assembly via a set of scraper connecting mechanisms. When the left and right scrapers fold or unfold synchronously with the left and right machine cover assemblies, the length of the telescopic scraper can be dynamically adjusted in real time, ensuring good coordination and synchronization with the left and right scrapers. This ensures smooth folding or unfolding of the three-section folding scraper mechanism. When the paddy field pulverizer is in the unfolded operation state, the three sequentially hinged scrapers—left, telescopic, and right—are all on the same horizontal plane, exhibiting good overall consistency and effectively preventing misalignment and warping. This ensures excellent flatness of the scraper assembly and helps improve the operational quality of the paddy field pulverizer.

[0007] The preferred technical solution is that the telescopic scraper includes a fixed section, a core rod, and a tube section. One end of the fixed section is rotatably connected to either the right end or the left end of the left shroud assembly via a set of rotating connecting mechanisms. The core rod is coaxially fixed to the other end of the fixed section. One end of the tube section is rotatably connected to either the right end or the left end of the left shroud assembly via a set of rotating connecting mechanisms. The free end of the core rod is movably inserted into the other end of the tube section. The telescopic scraper structure is ingeniously and reasonably designed, with good flexibility in length variation, ensuring the smooth fabrication and implementation of the three-section folding scraper mechanism for paddy field pulverizers of this utility model.

[0008] A further preferred technical solution is that each set of rotating connection mechanisms includes two U-shaped connectors with mounting holes, and the two U-shaped connectors are rotatably connected together by pin assemblies passing through the corresponding mounting holes. One U-shaped connector is fixed to the right end of the left housing assembly or the left end of the right housing assembly, and the other U-shaped connector is fixed to the end of the fixed section opposite to the core rod or the end of the tube section opposite to the core rod. The rotating connection mechanism has a simple structural design and good rotational flexibility. When the scraper assembly is folded or unfolded, the two rotating connection mechanisms located at the left and right ends of the telescopic scraper form a rotation fulcrum, ensuring the smoothness and stability of the scraper assembly when folding or unfolding.

[0009] A preferred technical solution is that each of the aforementioned scraper connecting mechanisms includes a second hydraulic cylinder, one end of which is hinged to the front side of the left or right engine hood assembly, and the other end is hinged to the left or right scraper. The scraper connecting mechanism is commercially available and ensures ease of adjustment when changing the lifting angle of the scraper assembly.

[0010] A further preferred technical solution includes two connecting rods in each set of scraper connecting mechanisms. One connecting rod is spaced apart on the left side of the second cylinder, and the other connecting rod is spaced apart on the right side of the second cylinder. One end of the connecting rod is hinged to the front side of the left or right hood assembly, and the other end is hinged to the left or right scraper. The connecting rods located on the left and right sides of the second cylinder improve the connection stability between the left and right scrapers and the left and right hood assemblies, thereby helping to ensure the smoothness of the scraper assembly when adjusted to the specified lifting angle.

[0011] A further preferred technical solution includes mounting rods along the left and right length directions on the front sides of the left and right engine hood assemblies, respectively. The end of the hydraulic cylinder two connected to the left or right engine hood assembly, and the end of the connecting rod connected to the left or right engine hood assembly, are respectively hinged to the corresponding mounting rods. These mounting rods improve the ease of hinged installation of the hydraulic cylinder two and the connecting rod on the engine hood assembly of the scraper connecting mechanism.

[0012] A further preferred technical solution includes a gearbox at the left end of the left hood assembly and at the right end of the right hood assembly. The gearbox at the left end of the left hood assembly is connected to the cutter shaft assembly inside the left hood assembly, and the gearbox at the right end of the right hood assembly is connected to the cutter shaft assembly inside the right hood assembly. A steering gear is provided on the suspension frame. The left output end of the steering gear is connected to the gearbox at the left end via a universal joint, and the right output end of the steering gear is connected to the gearbox at the right end via a universal joint. The left and right sides of the suspension frame are respectively equipped with a left hood assembly and a right hood assembly that can be tilted towards the center under the action of a hydraulic cylinder. The left and right hood assemblies are connected and driven by universal joints and gearboxes respectively. This two-section structure of the paddy field pulverizer solves the problem of driving the pulverizer in non-working states. The two cutter shaft assemblies also have independent power transmission and tilting mechanisms, ensuring stable and reliable operation, long service life, simple structure, and easy maintenance.

[0013] The advantages and beneficial effects of this utility model are as follows:

[0014] 1. This utility model discloses a three-section folding scraper mechanism for a paddy field pulverizer. The scraper assembly is designed with a left scraper, a telescopic scraper, and a right scraper sequentially hinged together. The left scraper is connected to the left machine cover assembly, and the right scraper is connected to the right machine cover assembly via a set of scraper connecting mechanisms. When the left and right scrapers fold or unfold synchronously with the left and right machine cover assemblies, the length of the telescopic scraper can be dynamically adjusted in real time, ensuring good coordination and synchronization with the left and right scrapers. This ensures smooth folding or unfolding of the three-section folding scraper mechanism. When the paddy field pulverizer is in the unfolded operation state, the sequentially hinged left scraper, telescopic scraper, and right scraper are all on the same horizontal plane, ensuring good overall consistency and effectively preventing misalignment and warping. This ensures excellent flatness of the scraper assembly and helps improve the operating quality of the paddy field pulverizer.

[0015] 2. The rotating connection mechanism has a simple structural design and good rotational flexibility. When the scraper assembly is folded or unfolded, the two rotating connection mechanisms located at the left and right ends of the telescopic scraper form a rotation fulcrum, ensuring the smoothness and stability of the scraper assembly when folding or unfolding.

[0016] 3. Each set of scraper connecting mechanisms also includes two connecting rods. One connecting rod is spaced apart on the left side of cylinder two, and the other connecting rod is spaced apart on the right side of cylinder two. One end of the connecting rod is hinged to the front side of the left or right hood assembly, and the other end is hinged to the left or right scraper. The connecting rods located on the left and right sides of cylinder two improve the connection stability between the left and right scrapers and the left and right hood assemblies, thereby helping to ensure the smoothness of the scraper assembly when adjusted to the specified lifting angle.

[0017] 4. The left and right sides of the suspension frame are respectively equipped with a left and right machine cover assembly that can be flipped towards the center under the action of a hydraulic cylinder. The left and right machine cover assemblies are connected and driven by a universal drive shaft and a gearbox, respectively. This two-section structure of the paddy field pulverizer solves the problem of driving the paddy field pulverizer in non-working state. At the same time, the two cutter shaft assemblies also have independent power transmission and flipping mechanisms, which are stable and reliable in operation, have a long service life, and are simple in structure and easy to maintain. Attached Figure Description

[0018] Figure 1 This is a perspective view from the left front side of a three-section folding scraper mechanism for a paddy field pulverizer according to the present invention.

[0019] Figure 2 This is a perspective view of a three-section folding scraper mechanism for a paddy field pulverizer according to the present invention (some components are hidden);

[0020] Figure 3 yes Figure 2 A magnified view of a section at point H in the middle;

[0021] Figure 4 This is a diagram showing the folding process of a three-section folding scraper mechanism for a paddy field pulverizer according to this utility model (some components are hidden).

[0022] Figure 5 yes Figure 4 A magnified view of a section at point S in the middle;

[0023] Figure 6 This is a folded state diagram of a three-section folding scraper mechanism for a paddy field pulverizer according to the present invention (some components are hidden).

[0024] In the diagram: 1. Suspension frame; 2. Left engine hood assembly; 3. Right engine hood assembly; 4. Steering gear; 5. Universal joint drive shaft; 6. Hydraulic cylinder one; 7. Gearbox; 8. Scraper assembly; 9. Rotary connection mechanism; 10. Hydraulic cylinder two; 11. Connecting rod; 12. Mounting rod; 8-1. Left scraper; 8-2. Telescopic scraper; 8-2a. Fixed section; 8-2b. Core rod; 8-2c. Tube section; 8-3. Right scraper; 9-1. U-shaped connector; 9-2. Pin assembly. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0026] Example

[0027] like Figures 1-6 As shown, this utility model is a three-section folding scraper mechanism for a paddy field pulverizer, including a suspension frame 1 and a scraper assembly 8. The suspension frame 1 is hinged to a left machine cover assembly 2 on the left side and a right machine cover assembly 3 on the right side. A hydraulic cylinder 6 is provided between the left machine cover assembly 2 and the suspension frame 1 to drive the left machine cover assembly 2 to fold or flatten, and a hydraulic cylinder 6 is provided between the right machine cover assembly 3 and the suspension frame 1 to drive the right machine cover assembly 3 to fold or flatten. The scraper assembly 8 includes a left scraper 8-1, a telescopic scraper 8-2, and a right scraper 8-3 that are sequentially hinged together. The left scraper 8-1 is located on the front side of the left machine cover assembly 2, the telescopic scraper 8-2 is located on the front side of the suspension frame 1, and the right scraper 8-3 is located on the front side of the right machine cover assembly 3. A set of scraper connecting mechanisms is provided between the left scraper 8-1 and the left machine cover assembly 2, and between the right scraper 8-3 and the right machine cover assembly 3.

[0028] Preferably, the telescopic scraper 8-2 includes a fixed section 8-2a, a core rod 8-2b, and a tube section 8-2c. One end of the fixed section 8-2a is rotatably connected to either the right end of the left housing assembly 2 or the left end of the right housing assembly 3 via a set of rotating connecting mechanisms 9. The core rod 8-2b is coaxially fixed to the other end of the fixed section 8-2a. One end of the tube section 8-2c is rotatably connected to either the right end of the left housing assembly 2 or the left end of the right housing assembly 3 via a set of rotating connecting mechanisms 9. The free end of the core rod 8-2b is movably inserted into the other end of the tube section 8-2c.

[0029] More preferably, each set of the rotating connection mechanism 9 includes two U-shaped connectors 9-1 with mounting holes, and the two U-shaped connectors 9-1 are rotatably connected together by a pin assembly 9-2 passing through the corresponding mounting holes. One U-shaped connector 9-1 is fixed to the right end of the left cover assembly 2 or the left end of the right cover assembly 3, and the other U-shaped connector 9-1 is fixed to one end of the fixed section 8-2a away from the core rod 8-2b or one end of the tube section 8-2c away from the core rod 8-2b.

[0030] More preferably, each of the scraper connecting mechanisms includes a second hydraulic cylinder 10, one end of which is hinged to the front side of the left engine cover assembly 2 or the front side of the right engine cover assembly 3, and the other end is hinged to the left scraper 8-1 or the right scraper 8-3.

[0031] More preferably, each set of scraper connecting mechanisms further includes two connecting rods 11, one of which is located at a distance from the left side of the second cylinder 10, and the other of which is located at a distance from the right side of the second cylinder 10. One end of the connecting rod 11 is hinged to the front side of the left engine cover assembly 2 or the front side of the right engine cover assembly 3, and the other end is hinged to the left scraper 8-1 or the right scraper 8-3.

[0032] More preferably, the front side of the left engine cover assembly 2 and the front side of the right engine cover assembly 3 are respectively provided with mounting rods 12 along the left and right length directions. The end of the hydraulic cylinder 10 connected to the left engine cover assembly 2 or the right engine cover assembly 3, and the end of the connecting rod 11 connected to the left engine cover assembly 2 or the right engine cover assembly 3 are respectively hinged and installed on the corresponding mounting rods 12.

[0033] More preferably, a gearbox 7 is provided at the left end of the left hood assembly 2 and the right end of the right hood assembly 3. The gearbox 7 at the left end of the left hood assembly 2 is connected to the cutter shaft assembly inside the left hood assembly 2, and the gearbox 7 at the right end of the right hood assembly 3 is connected to the cutter shaft assembly inside the right hood assembly 3. A steering gear 4 is provided on the suspension frame 1. The left output end of the steering gear 4 is connected to the gearbox 7 at the left end through a universal drive shaft 5, and the right output end of the steering gear 4 is connected to the gearbox 7 at the right end through a universal drive shaft 5.

[0034] The working principle of the three-section folding scraper mechanism for paddy field pulverizers of this utility model is as follows:

[0035] With the scraper assembly 8 in the extended state as the initial state, the left scraper 8-1, the telescopic scraper 8-2, and the right scraper 8-3 are all on the same horizontal plane (see appendix). Figure 1 and 2 The core rod 8-2b is almost entirely inserted into the tube section 8-2c (see appendix). Figure 3 When the paddy field threshing machine begins to fold, the two hydraulic cylinders 6 located on the left and right sides of the suspension frame 1 begin to retract and reset, driving the left machine cover assembly 2 and the right machine cover assembly 3 to begin to flip and fold upward relative to the suspension frame 1. At the same time, the left scraper 8-1 folds synchronously with the left machine cover assembly 2, and the right scraper 8-3 folds synchronously with the right machine cover assembly 3 (see appendix). Figure 4The core rod 8-2b is gradually pulled out from inside the tube section 8-2c so that the length of the telescopic scraper 8-2 is dynamically extended as the folding angles of the left hood assembly 2 and the right hood assembly 3 relative to the suspension frame 1 change (see Appendix). Figure 5 ), until the left hood assembly 2 and the right hood assembly 3 are folded into a vertical position (see appendix). Figure 6 At this point, the three-section folding scraper mechanism is folded into place, and the telescopic scraper 8-2 is in its longest extended state. When the paddy field threshing machine begins to flatten, the two hydraulic cylinders 6 located on the left and right sides of the suspension frame 1 gradually extend, driving the left machine cover assembly 2 and the right machine cover assembly 3 to begin to flip downwards and open relative to the suspension frame 1. At the same time, the left scraper 8-1 unfolds synchronously with the left machine cover assembly 2, and the right scraper 8-3 unfolds synchronously with the right machine cover assembly 3 (see Appendix). Figure 4 The core rod 8-2b is gradually inserted into the tube section 8-2c so that the length of the telescopic scraper 8-2 is continuously and dynamically shortened as the deployment angle of the left hood assembly 2 and the right hood assembly 3 relative to the suspension frame 1 changes (see Appendix). Figure 5 ), until the left hood assembly 2 and the right hood assembly 3 are unfolded to a horizontal position (see appendix). Figure 1 and 2 At this time, the three-section folding scraper mechanism is unfolded into a horizontal state, and the telescopic scraper 8-2 is in its shortest extended state.

[0036] This invention relates to a three-section folding scraper mechanism for a paddy field pulverizer. The scraper assembly is designed with a left scraper, a telescopic scraper, and a right scraper sequentially hinged together. The left scraper is connected to the left machine cover assembly, and the right scraper is connected to the right machine cover assembly via a set of scraper connecting mechanisms. When the left and right scrapers fold or unfold synchronously with the left and right machine cover assemblies, the length of the telescopic scraper can be dynamically adjusted in real time, ensuring good coordination and synchronization with the left and right scrapers. This ensures smooth folding or unfolding of the three-section folding scraper mechanism. When the paddy field pulverizer is in the unfolded operation state, the three sequentially hinged scrapers—left, telescopic, and right—are all on the same horizontal plane, exhibiting good overall consistency and effectively preventing misalignment and warping. This ensures excellent flatness of the scraper assembly and helps improve the operational quality of the paddy field pulverizer.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A three-section folding scraper mechanism for a paddy field threshing machine, comprising a suspension frame (1) and a scraper assembly (8), wherein a left machine cover assembly (2) is hinged to the left side of the suspension frame (1) and a right machine cover assembly (3) is hinged to the right side; a hydraulic cylinder (6) for driving the left machine cover assembly (2) to fold or flatten is provided between the left machine cover assembly (2) and the suspension frame (1), and a hydraulic cylinder (6) for driving the right machine cover assembly (3) to fold or flatten is provided between the right machine cover assembly (3) and the suspension frame (1), characterized in that, The scraper assembly (8) includes a left scraper (8-1), a telescopic scraper (8-2), and a right scraper (8-3) that are sequentially hinged together. The left scraper (8-1) is located on the front side of the left engine cover assembly (2), the telescopic scraper (8-2) is located on the front side of the suspension frame (1), and the right scraper (8-3) is located on the front side of the right engine cover assembly (3). A set of scraper connecting mechanisms is provided between the left scraper (8-1) and the left engine cover assembly (2), and between the right scraper (8-3) and the right engine cover assembly (3).

2. The three-section folding scraper mechanism for a paddy field pulverizer as described in claim 1, characterized in that, The telescopic scraper (8-2) includes a fixed section (8-2a), a core rod (8-2b), and a tube section (8-2c). One end of the fixed section (8-2a) is rotatably connected to either the right end of the left cover assembly (2) or the left end of the right cover assembly (3) via a set of rotating connecting mechanisms (9). The core rod (8-2b) is coaxially fixed to the other end of the fixed section (8-2a). One end of the tube section (8-2c) is rotatably connected to either the right end of the left cover assembly (2) or the left end of the right cover assembly (3) via a set of rotating connecting mechanisms (9). The free end of the core rod (8-2b) is movably inserted into the other end of the tube section (8-2c).

3. The three-section folding scraper mechanism for a paddy field pulverizer as described in claim 2, characterized in that, Each set of rotating connection mechanisms (9) includes two U-shaped connectors (9-1) with mounting holes, and the two U-shaped connectors (9-1) are rotatably connected together by a pin assembly (9-2) passing through the corresponding mounting hole. One U-shaped connector (9-1) is fixed to the right end of the left cover assembly (2) or the left end of the right cover assembly (3), and the other U-shaped connector (9-1) is fixed to one end of the fixed section (8-2a) away from the core rod (8-2b) or one end of the tube section (8-2c) away from the core rod (8-2b).

4. The three-section folding scraper mechanism for a paddy field pulverizer as described in claim 1, characterized in that, Each of the scraper connecting mechanisms includes a second hydraulic cylinder (10), one end of which is hinged to the front side of the left engine cover assembly (2) or the front side of the right engine cover assembly (3), and the other end is hinged to the left scraper (8-1) or the right scraper (8-3).

5. The three-section folding scraper mechanism for a paddy field pulverizer as described in claim 4, characterized in that, Each scraper connecting mechanism further includes two connecting rods (11), one of which is located on the left side of the second cylinder (10) and the other is located on the right side of the second cylinder (10). One end of the connecting rod (11) is hinged to the front side of the left engine cover assembly (2) or the front side of the right engine cover assembly (3), and the other end is hinged to the left scraper (8-1) or the right scraper (8-3).

6. The three-section folding scraper mechanism for a paddy field pulverizer as described in claim 5, characterized in that, The front side of the left engine cover assembly (2) and the front side of the right engine cover assembly (3) are respectively provided with mounting rods (12) along the left and right length directions. The end of the hydraulic cylinder (10) connected to the left engine cover assembly (2) or the right engine cover assembly (3) and the end of the connecting rod (11) connected to the left engine cover assembly (2) or the right engine cover assembly (3) are respectively hinged to the corresponding mounting rods (12).

7. The three-section folding scraper mechanism for a paddy field pulverizer as described in any one of claims 1 to 6, characterized in that, A gearbox (7) is provided at the left end of the left hood assembly (2) and the right end of the right hood assembly (3). The gearbox (7) at the left end of the left hood assembly (2) is connected to the cutter shaft assembly inside the left hood assembly (2), and the gearbox (7) at the right end of the right hood assembly (3) is connected to the cutter shaft assembly inside the right hood assembly (3). A steering gear (4) is provided on the suspension frame (1). The left output end of the steering gear (4) is connected to the gearbox (7) at the left end through a universal drive shaft (5), and the right output end of the steering gear (4) is connected to the gearbox (7) at the right end through a universal drive shaft (5).

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