Turnover cover plate for thresher of harvester

Abstract

The utility model relates to the field of threshers, and discloses an overturning cover plate of a harvester thresher, which comprises a cover plate body, a plurality of connecting plates are fixed on the inner top surface of the cover plate body, two of the plurality of connecting plates form a group, a revolving seat is rotatably arranged between the two connecting plates, and the revolving seat is fixed on the cover plate body. And a rotary center shaft is fixed to one side of the outer wall of the rotary seat and rotatably arranged between the two connecting plates, two first threaded holes are formed in the top face of the rotary seat, and bolt bodies are in threaded connection with the interiors of the two first threaded holes correspondingly. According to the utility model, the rotating opening and closing angle of the cover plate body can reach 75 degrees, and the cover plate body rotates around the three rotary seats on the same rotary central shaft during opening and closing, so that a rotating shaft for overturning the cover plate body is changed from an original vertical rotating shaft to an existing horizontal rotating shaft, and the space required by the rotation of the cover plate body is smaller; therefore, the cover plate body is more convenient to open and close.

Description

Technical Field

[0001] The utility model relates to the technical field of threshers, in particular to a reversible cover plate of a harvester thresher. Background Art

[0002] Thresher is a harvesting machine, which refers to a machine that can separate the grains of crops from the stems, mainly referring to the harvesting machine of grain crops. There are different types of threshers depending on the crops. For example, "rice thresher" is suitable for rice threshing; the one used for corn threshing is called "corn thresher", and so on. Rice thresher, commonly known as "thresher", is the most common rice thresher. The rice needs to be harvested first, and then the rice grains are separated from the stems by this machine. Rice threshers are divided into two categories. One category relies on human power, called "human power thresher", which is a semi-mechanized tool; if the rice thresher is changed to power drive, it is called "power thresher", and they are usually equipped with a cover.

[0003] At present, when most threshers are in use, the cover is installed in a manner with the vertical direction as the axis, which has the following disadvantages: when the cover is in use, it takes up a large space when opened from front to back, resulting in inconvenience in opening and closing the cover. Utility Model Content

[0004] The utility model aims to provide a reversible cover plate of a harvester thresher to solve the problem that the cover plate occupies a large space when opened from front to back during use, resulting in inconvenience in operation when opening and closing the cover plate.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a harvester thresher flip cover, including a cover body, a plurality of connecting plates are fixed to the inner top surface of the cover body, two of the connecting plates form a group, a swivel seat is rotatably arranged between the two connecting plates, a swivel center axis is fixed to one side of the outer wall of the swivel seat, the swivel center axis is rotatably arranged between the two connecting plates, and two first threaded holes are provided on the top surface of the swivel seat, and bolt bodies are respectively threadedly connected in the two first threaded holes.

[0006] Preferably, a washer is provided between the swivel seat and the bolt body.

[0007] Preferably, two second threaded holes are provided on the rear side of the outer wall of the cover plate body, and handball bolts are respectively threadedly connected in the two second threaded holes.

[0008] Preferably, a handle is provided on the rear side of the outer wall of the cover body.

[0009] Preferably, a mounting seat is fixed to the inner wall of the cover plate body, and a gas strut is connected to the right side of the outer wall of the mounting seat.

[0010] Preferably, the thickness of the gasket is 0.5 mm.

[0011] Compared with the prior art, a harvester thresher flip cover adopting the above technical solution has the following beneficial effects:

[0012] 1. During use, the maximum rotation opening and closing angle of the cover body can reach 75°. When opening and closing, the cover body rotates around the three rotating seats on the same rotating center axis, which is conducive to changing the rotation axis of the cover body from the original vertical rotation axis to the current horizontal rotation axis, making the space required for the rotation of the cover body smaller, thereby making it more convenient to open and close the cover body;

[0013] 2. During use, washers can be used to evenly disperse the load applied by the bolt body on the swivel seat, prevent excessive concentration of stress on the bolt body, reduce material fatigue and damage, improve the overall stability of the connection, reduce wear caused by direct contact, and extend the service life of the swivel seat and the bolt body. The handball bolt can be used to fix the cover body after it is in the closed state, thereby improving the stability of the cover body after it is closed. The buckle is used in conjunction with the two handball bolts to form a three-point fixation. After the two handball bolts are unscrewed, the cover body will still not be opened. The cover body will flip upwards only when the buckle is released. Therefore, the buckle in the middle position has both the function of fixing and the function of determining the switch;

[0014] 3. During use, the staff connects one end of the gas strut to the mounting plate on the thresher. When the cover body reaches the maximum opening and closing angle, the gas strut is just fully extended, and the supporting force of the gas strut overcomes the dead weight of the cover body, so that the cover body will not fall back; on the contrary, when the cover body is closed, the turning point of the gas strut passes the flipping dead point, and the force of the gas strut on the cover body prevents the cover body from popping out easily. When opening, it is necessary to manually apply a force to the cover body so that the cover body can be easily opened after the gas strut passes the dead point, thereby helping to improve the stable supporting force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 It is a three-dimensional schematic diagram of the split connection plate and the swivel seat in the embodiment.

[0017] Figure 3 It is a three-dimensional schematic diagram of the other side of the cover body in the embodiment.

[0018] Figure 4 It is a front view schematic diagram of an embodiment.

[0019] Figure 5 Schematic diagram of the flipping of the cover plate body in the embodiment.

[0020] In the figure: 1. Cover plate body; 2. Connecting plate; 3. Swivel seat; 4. Swivel center axis; 5. First threaded hole; 6. Bolt body; 7. Washer; 8. Second threaded hole; 9. Handball bolt; 10. Clamp; 11. Mounting seat; 12. Gas strut. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 5 As shown, a reversible cover for a harvester thresher comprises a cover body 1, a plurality of connecting plates 2 are fixed to the inner top surface of the cover body 1, two of the connecting plates 2 form a group, a swivel seat 3 is rotatably arranged between the two connecting plates 2, a swivel center axis 4 is fixed to one side of the outer wall of the swivel seat 3, the swivel center axis 4 is rotatably arranged between the two connecting plates 2, and two first threaded holes 5 are provided on the top surface of the swivel seat 3, and bolt bodies 6 are respectively threadedly connected in the two first threaded holes 5.

[0023] During use, the staff first installs the cover body 1 and the swivel seat 3 on the thresher through the bolt body 6. The cover body 1 is flipped through the swivel seat 3 and the swivel center axis 4, so that the rotation opening and closing angle of the cover body 1 can reach up to 75°. When opening and closing, the cover body 1 rotates around the three swivel seats 3 on the same swivel center axis 4, which is conducive to flipping the rotation axis of the cover body 1 from the original vertical rotation axis to the current horizontal rotation axis, so that the space required for the rotation of the cover body 1 is smaller, thereby making it easier to open and close the cover body 1.

[0024] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a washer 7 is provided between the swivel seat 3 and the bolt body 6 .

[0025] During use, the washer 7 helps to evenly disperse the load applied by the bolt body 6 to the swivel seat 3, prevent excessive stress concentration on the bolt body 6, thereby reducing material fatigue and damage, improving the overall stability of the connection, and reducing wear caused by direct contact, thereby extending the service life of the swivel seat 3 and the bolt body 6.

[0026] like Figure 1-Figure 5 As shown, two second threaded holes 8 are provided on the rear side of the outer wall of the cover body 1 , and hand-ball bolts 9 are respectively threadedly connected in the two second threaded holes 8 . A buckle 10 is provided on the rear side of the outer wall of the cover body 1 .

[0027] In use, the hand-ball bolt 9 is used to fix the cover body 1 after it is in a closed state, thereby improving the stability of the cover body 1 after it is closed. The buckle 10 is used in conjunction with the two hand-ball bolts 9 to form a three-point fixation. After the two hand-ball bolts 9 are unscrewed, the cover body 1 will still not be opened. The cover body 1 will only flip upwards when the buckle 10 is unlocked. Therefore, the buckle 10 in the middle position has both a fixing function and a switch determining function.

[0028] like Figure 1-Figure 5 As shown, a mounting seat 11 is fixed to the inner wall of the cover body 1, a gas strut 12 is connected to the right side of the outer wall of the mounting seat 11, and the thickness of the gasket 7 is 0.5 mm.

[0029] During use, the staff connects one end of the gas strut 12 to the mounting plate on the thresher. When the cover body 1 reaches the maximum opening and closing angle, the gas strut 12 is just fully extended, and the supporting force of the gas strut 12 overcomes the dead weight of the cover body 1, so that the cover body 1 will not fall back; on the contrary, when the cover body 1 is closed, the turning point of the gas strut 12 passes the flipping dead point, and the force of the gas strut 12 on the cover body 1 prevents the cover body 1 from popping out easily. When opening, it is necessary to manually apply a force to the cover body 1 so that the cover body 1 can be easily opened only after the gas strut 12 passes the dead point, thereby helping to improve the stable supporting force.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A harvester thresher flip cover, comprising a cover body (1), characterized in that: A plurality of connecting plates (2) are fixed to the inner top surface of the cover plate body (1), two of the connecting plates (2) form a group, a swivel seat (3) is rotatably arranged between the two connecting plates (2), a swivel center axis (4) is fixed to one side of the outer wall of the swivel seat (3), the swivel center axis (4) is rotatably arranged between the two connecting plates (2), and two first threaded holes (5) are provided on the top surface of the swivel seat (3), and bolt bodies (6) are respectively threadedly connected in the two first threaded holes (5).

2. The harvester thresher flip cover according to claim 1, characterized in that: A washer (7) is provided between the swivel seat (3) and the bolt body (6).

3. The reversible cover plate of a harvester and thresher according to claim 2, characterized in that: Two second threaded holes (8) are provided on the rear side of the outer wall of the cover plate body (1), and handball bolts (9) are respectively threadedly connected in the two second threaded holes (8).

4. The reversible cover plate of a harvester and thresher according to claim 1, characterized in that: A buckle (10) is provided on the rear side of the outer wall of the cover plate body (1).

5. The reversible cover plate of a harvester and thresher according to claim 4, characterized in that: A mounting seat (11) is fixed to the inner wall of the cover plate body (1), and a gas strut (12) is connected to the right side of the outer wall of the mounting seat (11).

6. The reversible cover plate of a harvester and thresher according to claim 2, characterized in that: The thickness of the gasket (7) is 0.5 mm.

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