Inclined push-pull type chopper structure

Abstract

The utility model provides an inclined push-pull type chopper structure. The inclined push-pull type chopper structure comprises a chopper assembly and a hanging and supporting assembly. The chopper assembly is arranged below the hanging and supporting assembly in a sliding mode. A first preset angle is formed between the end face, facing the chopper assembly, of the lifting and supporting assembly and the horizontal plane, and a second preset angle is formed between the end face, facing the lifting and supporting assembly, of the chopper assembly and the horizontal plane. When the chopper assembly is located at the first position of the hanging and supporting assembly, the chopper assembly is in a chopping state, and the gravity center of the chopper assembly is located at the second position, and when the chopper assembly is located at the third position of the hanging and supporting assembly, the chopper assembly is in a non-chopping state, and the gravity center of the chopper assembly is located at the fourth position higher than the second position. When the chopper assembly is located at the first position, the stability during chopping can be guaranteed; when the chopper assembly is located at the second position, the chopper assembly has a high gravity center, the grass extends out of the vehicle body in the horizontal direction, a large space is reserved for extension of the grass due to the high gravity center, and bundling by an operator is more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery and equipment, in particular to an oblique push-pull type chopper structure. Background Art

[0002] The chopper is a core component of the harvester. When the chopper is located at the first position of the harvester, it is in a grass chopping state; when it is located at the second position, it is in a non-grass chopping state.

[0003] Specifically, a mounting seat is fixed to the upper end of the chopper, and an L-shaped connecting plate is connected to the side of the mounting seat by transversely arranged bolts. A rotatable bearing or roller is installed on the mounting seat, and the chopper is slidably assembled in the slide rail of the harvester body crossbeam along the axial direction of the harvester through the bearing or roller. The chopper can move horizontally along the axial direction of the harvester, so that when the chopper is located in the first position of the harvester, it is in a state of chopping grass; when it is located in the second position, it is in a state of not chopping grass.

[0004] In addition, when the chopper changes from a grass-chopping state to a non-grass-chopping state, a supporting component needs to be installed; however, the installation of the supporting component is rather cumbersome when changing the equipment; in addition, since the chopper moves along the axis of the harvester when the grass-chopping state changes to a non-grass-chopping state, the chopper has a higher center of gravity when in the grass-chopping state, making the entire machine unstable and increasing the load on the machine body.

[0005] Therefore, an oblique push-pull chopper structure is urgently needed to solve the technical problems existing in the prior art to a certain extent. Utility Model Content

[0006] The purpose of the present application is to provide an oblique push-pull chopper structure, which can to a certain extent solve the technical problems in the prior art that the installation of supporting components is complicated and when the chopper is in the state of chopping grass, the center of gravity of the chopper is high and the whole machine is unstable.

[0007] The present application provides an oblique push-pull chopper structure, which is installed on the body of a harvester. The oblique push-pull chopper structure includes a chopper assembly and a suspension assembly.

[0008] The chopper assembly is slidably disposed below the suspension assembly;

[0009] The end surface of the suspension assembly facing the chopper assembly forms a first preset angle with the horizontal plane, and the end surface of the chopper assembly facing the suspension assembly forms a second preset angle with the horizontal plane;

[0010] When the chopper assembly is located at the first position of the hanging assembly, the chopper assembly is in a chopping state and the center of gravity of the chopper assembly is located at a second position; when the chopper assembly is located at the third position of the hanging assembly, the chopper assembly is in a non-chopping state and the center of gravity of the chopper assembly is located at a fourth position higher than the second position.

[0011] In the above technical solution, further, the first preset angle is the same as the second preset angle.

[0012] In the above technical solution, further, the range of the first preset angle and the second preset angle are both set between 6° and 8°.

[0013] In the above technical solution, further, the suspension assembly includes a suspension part and a fixing part;

[0014] There are a plurality of the suspension parts, and the plurality of the suspension parts are arranged at intervals along the width direction of the vehicle body; adjacent suspension parts are connected by the fixing part;

[0015] The suspension part includes a sliding beam and a reinforcing beam; the sliding beam is arranged below the reinforcing beam, one end of the sliding beam and the reinforcing beam are connected to the vehicle body at intervals, and the other end of the reinforcing beam extends along the axial direction of the vehicle body, and the other end of the sliding beam extends along the first preset angle with the horizontal plane and is connected to the end of the reinforcing beam away from the vehicle body;

[0016] A slideway is formed on the sliding beam along its extending direction, and the chopper assembly is slidably connected to the sliding beam via a rolling member, so that the chopper assembly can move from the first position to the third position.

[0017] In the above technical solution, further, the first position refers to that the chopper assembly is located at an end of the reinforcement beam close to the vehicle body; and the third position refers to an end of the reinforcement beam away from the vehicle body.

[0018] In the above technical solution, further, the suspension part also includes a protective cover;

[0019] An installation space is provided between the vehicle body, the reinforcement beam and the sliding beam;

[0020] The first edge of the shield is connected to the vehicle body, the second edge of the shield is connected to the reinforcing beam, and the third edge of the shield is connected to the sliding beam, so that the shield seals the installation space.

[0021] In the above technical solution, further, the suspension part also includes a shield and a mounting plate;

[0022] One end of the sliding beam and the reinforcing beam is fixed to the vehicle body through a mounting plate;

[0023] An installation space is enclosed between the installation plate, the reinforcement beam and the sliding beam;

[0024] The first edge of the shield is along the mounting plate, the second edge of the shield is connected to the reinforcing beam, and the third edge of the shield is connected to the sliding beam, so that the shield seals the mounting space.

[0025] In the above technical solution, further, the suspension part also includes a reinforcing plate;

[0026] One end of the sliding beam away from the vehicle body is connected to a first end of the reinforcing beam away from the vehicle body through a reinforcing plate.

[0027] In the above technical solution, further, the chopper assembly includes a first side plate, a second side plate and a movable knife shaft;

[0028] The first side plate and the second side plate are arranged at intervals along the width direction of the vehicle body, two ends of the movable knife shaft are respectively connected between the first side plate and the second side plate, and a blade is sleeved on the movable knife shaft;

[0029] The end surfaces of the first side plate and the second side plate facing the sliding beam are at a second preset angle with the horizontal plane;

[0030] One end of the rolling member is fixed to the first side plate and / or the second side plate and the other end is rollingly disposed on the sliding beam, so that the chopper assembly can slide from the first position to the third position.

[0031] In the above technical solution, further, the rolling member includes a roller and a connecting plate;

[0032] One end of the connecting plate is arranged on the first side plate and / or the second side plate; the other end of the connecting plate is arranged on the slideway through a roller.

[0033] Compared with the prior art, this application has the following beneficial effects:

[0034] The present application provides an oblique push-pull chopper structure, which is installed on the body of a harvester. The oblique push-pull chopper structure includes a chopper assembly and a suspension assembly.

[0035] The chopper assembly is slidably disposed below the suspension assembly;

[0036] The end surface of the suspension assembly facing the chopper assembly forms a first preset angle with the horizontal plane, and the end surface of the chopper assembly facing the suspension assembly forms a second preset angle with the horizontal plane;

[0037] When the chopper assembly is located at the first position of the hanging assembly, the chopper assembly is in a chopping state and the center of gravity of the chopper assembly is located at a second position; when the chopper assembly is located at the third position of the hanging assembly, the chopper assembly is in a non-chopping state and the center of gravity of the chopper assembly is located at a fourth position higher than the second position.

[0038] In summary, when the chopper assembly is in the first position, the present application has a lower center of gravity, which can ensure stability during chopping; when the chopper assembly is in the second position, the chopper assembly has a relatively high center of gravity (that is, the center of gravity at this time is higher from the ground); when the chopper assembly is in the third position, that is, in a non-chopping state, the grass can extend from the vehicle body in a horizontal direction, and the relatively high center of gravity leaves a larger space for the extension of the grass, which is more convenient for the operator to bundle; compared with the prior art that requires an additional grass retaining structure, the present application has a simple structure and is also simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 A schematic diagram of the structure of the oblique push-pull chopper provided in the present application on a harvester in a chopping state and from a first perspective;

[0041] Figure 2 A schematic diagram of the structure of the oblique push-pull chopper provided in the present application on a harvester in a chopping state and at a second viewing angle;

[0042] Figure 3 A schematic diagram of the structure of the oblique push-pull chopper provided in the present application on a harvester in a non-chopping state and at a first viewing angle;

[0043] Figure 4 A schematic diagram of the structure of the oblique push-pull chopper provided by the present application on a harvester in a non-chopping state and at a second viewing angle;

[0044] Figure 5 A schematic structural diagram of a suspension assembly in the oblique push-pull type chopper structure provided in the present application at a first viewing angle;

[0045] Figure 6A schematic diagram of the structure of the suspension assembly in the oblique push-pull type shredder structure provided by the present application at a second viewing angle;

[0046] Figure 7 A schematic structural diagram of a suspension assembly in the oblique push-pull type chopper structure provided in the present application from a third viewing angle;

[0047] Figure 8 A schematic structural diagram of a chopper assembly in the oblique push-pull chopper structure provided by the present application at a first viewing angle;

[0048] Fig. 9 This is a schematic structural diagram of a chopper assembly in the oblique push-pull chopper structure provided in the present application at a second viewing angle.

[0049] Figure numerals: 1-support assembly; 2-body; 3-chopper assembly; 5-fixing part; 7-sliding beam; 8-reinforcement beam; 9-slide; 10-rolling member; 11-guard; 12-first edge; 13-second edge; 14-third edge; 15-mounting plate; 16-reinforcement plate; 17-first side plate; 18-second side plate; 19-moving knife shaft; 20-roller; 21-connecting plate; 22-horizontal plane; 23-blade; 24-guard; 25-connecting plate. DETAILED DESCRIPTION

[0050] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0051] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0052] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0053] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0054] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0055] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0056] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0057] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0058] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0059] Combine the following Figure 1-Figure 9 The present invention provides an oblique push-pull type chopper structure.

[0060] In this embodiment, an oblique push-pull chopper structure is provided; the oblique push-pull chopper structure is installed on the body 2 of the harvester; specifically, the oblique push-pull chopper structure includes a chopper assembly 3 and a suspension assembly 1 .

[0061] Specifically, the chopper assembly 3 is slidably arranged below the supporting assembly 1. When the grass needs to be cut, the chopper assembly slides on the supporting assembly 1 to the end close to the vehicle body 2 to cut the grass (while cutting, the chopped grooves leak from the vehicle body 2 to the ground); when the grass needs to be chopped and the grass needs to be bundled, the chopper assembly is slid on the supporting assembly 1 to the end away from the vehicle body 2, so that a bundling space is formed between the vehicle body 2 and the chopper assembly.

[0062] Specifically, combined Figure 1-Figure 4 , Figure 7 As shown, the end surface of the suspension assembly 1 facing the chopper assembly 3 forms a first preset angle α with the horizontal plane 22 , so that the end of the suspension assembly 1 away from the vehicle body 2 is higher than the end of the suspension assembly 1 close to the vehicle body 2 .

[0063] Specifically, combined Fig. 9 As shown, the end surface of the chopper assembly 3 facing the suspension assembly 1 forms a second preset angle β with the horizontal plane 22 .

[0064] Further, the first preset angle α is the same as the second preset angle β. Further, the range of the first preset angle α and the second preset angle β are both set between 6° and 8°. Preferably, the first preset angle α and the second preset angle β are both 7°, that is, the inclination angle of the upper end surface of the chopper assembly 3 is the same as the inclination angle of the lower end surface of the suspension assembly 1, thereby ensuring that the chopper assembly 3 is adapted to the suspension assembly 1.

[0065] In actual use, when the chopper assembly 3 is located at the first position of the hanging assembly 1, the chopper assembly 3 is in a chopping state and the center of gravity of the chopper assembly 3 is located at the second position; when the chopper assembly 3 is located at the third position of the hanging assembly 1, the chopper assembly 3 is in a non-chopping state and the center of gravity of the chopper assembly 3 is located at a fourth position higher than the second position.

[0066] Furthermore, the first position refers to that the chopper assembly 3 is located at an end of the suspension assembly 1 close to the vehicle body 2 ; the third position refers to an end of the suspension assembly 1 away from the vehicle body 2 .

[0067] In summary, when the chopper assembly 3 is in the first position, it has a lower center of gravity, which can ensure stability during chopping; when the chopper assembly 3 is in the second position, the chopper assembly 3 has a relatively high center of gravity (that is, the center of gravity at this time is higher than the ground); when the chopper assembly 3 is in the third position, that is, in a non-chopping state, the grass can extend from the vehicle body 2 in a horizontal direction, and the relatively high center of gravity leaves a larger space for the extension of the grass, which is more convenient for the operator to bundle; compared with the prior art that requires an additional grass blocking structure, the present application has a simple structure and is also simple to operate.

[0068] In this embodiment, combined with Figure 5-Figure 7 As shown, the suspension assembly 1 includes a suspension portion and a fixing portion 5 .

[0069] Specifically, the fixing portion 5 is a fixing rod.

[0070] Specifically, there are multiple supporting parts, which are arranged at intervals along the width direction of the vehicle body 2; adjacent supporting parts are connected by a fixing part 5; preferably, there are two supporting parts, which are arranged at intervals along the width direction of the vehicle body 2; adjacent supporting parts are connected by a fixing rod.

[0071] Specifically, the suspension portion includes a sliding beam 7 and a reinforcing beam 8; the sliding beam 7 is disposed below the reinforcing beam 8, one end of the sliding beam 7 and the reinforcing beam 8 are spaced and connected to the vehicle body 2, and the other end of the reinforcing beam 8 extends along the axis direction of the vehicle body 2, and the other end of the sliding beam 7 extends at a first preset angle to the horizontal plane 22 and is connected to the end of the reinforcing beam 8 away from the vehicle body 2;

[0072] Specifically, a slideway 9 is formed on the sliding beam 7 along its extending direction, and the chopper assembly 3 is slidably connected to the sliding beam 7 via a rolling member 10, so that the chopper assembly 3 can move from the first position to the third position.

[0073] In this embodiment, the suspension part further includes a shield 11, which is not shown in the figure. Specifically, a triangular installation space is surrounded by the vehicle body 2, the reinforcing beam 8 and the sliding beam 7; the first edge 12 of the shield 11 is connected to the vehicle body 2, the second edge 13 of the shield 11 is connected to the reinforcing beam 8, and the third edge 14 of the shield 11 is connected to the sliding beam 7, so that the shield 11 seals the installation space.

[0074] In summary, the protective cover 11 can prevent grass, straw, etc. from entering into the suspension assembly 1; it is worth noting that the suspension assembly 1 is actually used to install a mailbox, so the protective cover 11 can prevent grass, straw, etc. from entering into the fuel tank.

[0075] In this embodiment, combined with Figure 5-Figure 7 As shown, the supporting part further includes a protective cover 11 and a mounting plate 15. This structure is different from the above-mentioned structure of "the supporting part further includes a protective cover 11", and the two structures are parallel structures.

[0076] Specifically, one end of the sliding beam 7 and the reinforcing beam 8 is fixed to the vehicle body 2 through a mounting plate 15; a mounting space is defined between the mounting plate 15, the reinforcing beam 8 and the sliding beam 7; the first edge 12 of the shield 11 is the mounting plate 15, the second edge 13 of the shield 11 is connected to the reinforcing beam 8, and the third edge 14 of the shield 11 is connected to the sliding beam 7, so that the shield 11 seals the mounting space.

[0077] In this embodiment, combined with Figure 5-Figure 7 As shown, the supporting portion further includes a reinforcing plate 16 .

[0078] Specifically, one end of the sliding beam 7 away from the vehicle body 2 is connected to the first end of the reinforcing beam 8 away from the vehicle body 2 through the reinforcing plate 16. The reinforcing plate 16 can increase the connection stability between the sliding beam 7 and the reinforcing beam 8.

[0079] In this embodiment, combined with Figure 8 and Fig. 9 As shown, the chopper assembly 3 includes a first side plate 17 , a second side plate 18 and a movable blade shaft 19 .

[0080] Specifically, the first side plate 17 and the second side plate 18 are arranged at intervals along the width direction of the vehicle body 2, and the two ends of the movable knife shaft 19 are respectively connected between the first side plate 17 and the second side plate 18. The movable knife shaft 19 is provided with a blade 23. When the chopper assembly 3 is located in the first position, the movable knife shaft 19 rotates (the rotation of the movable knife shaft 19 can be driven by a motor, which is understandable to those skilled in the art and will not be elaborated on here), and drives the blade 23 to rotate to chop the grass.

[0081] Specifically, the end surfaces of the first side plate 17 and the second side plate 18 facing the sliding beam 7 form a second preset angle with the horizontal plane 22 .

[0082] Specifically, one end of the rolling member 10 is fixed to the first side plate 17 and / or the second side plate 18 and the other end is rollingly disposed on the sliding beam 7 , so that the chopper assembly 3 can slide from the first position to the third position.

[0083] Furthermore, the rolling member 10 includes a roller 20 and a connecting plate 21. One end of the connecting plate 21 is arranged on the first side plate 17 and / or the second side plate 18; the other end of the connecting plate 21 is arranged on the slideway 9 through the roller 20.

[0084] In this embodiment, the chopper assembly 3 further includes a protective cover 24 and a connecting piece 25; both ends of the protective cover 24 are respectively disposed between the first side plate 17 and the second side plate 18 and away from one end of the vehicle body 2 through the protective cover 24. The protective cover 24 can prevent grass or grass clippings from falling into the fuel tank.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An oblique push-pull chopper structure; mounted on the body of a harvester; characterized in that: The oblique push-pull type chopper structure comprises a chopper assembly and a suspension assembly; The chopper assembly is slidably disposed below the suspension assembly; The end surface of the suspension assembly facing the chopper assembly forms a first preset angle with the horizontal plane, and the end surface of the chopper assembly facing the suspension assembly forms a second preset angle with the horizontal plane; When the chopper assembly is located at the first position of the hanging assembly, the chopper assembly is in a chopping state and the center of gravity of the chopper assembly is located at a second position; when the chopper assembly is located at the third position of the hanging assembly, the chopper assembly is in a non-chopping state and the center of gravity of the chopper assembly is located at a fourth position higher than the second position.

2. The oblique push-pull chopper structure according to claim 1, characterized in that: The first preset angle is the same as the second preset angle.

3. The oblique push-pull chopper structure according to claim 1, characterized in that: The range of the first preset angle and the second preset angle are both set between 6° and 8°.

4. The oblique push-pull chopper structure according to claim 1, characterized in that: The suspension assembly comprises a suspension portion and a fixing portion; There are a plurality of the suspension parts, and the plurality of the suspension parts are arranged at intervals along the width direction of the vehicle body; adjacent suspension parts are connected by the fixing part; The suspension part includes a sliding beam and a reinforcing beam; the sliding beam is arranged below the reinforcing beam, one end of the sliding beam and the reinforcing beam are connected to the vehicle body at intervals, and the other end of the reinforcing beam extends along the axial direction of the vehicle body, and the other end of the sliding beam extends along the first preset angle with the horizontal plane and is connected to the end of the reinforcing beam away from the vehicle body; A slideway is formed on the sliding beam along its extending direction, and the chopper assembly is slidably connected to the sliding beam via a rolling member, so that the chopper assembly can move from the first position to the third position.

5. The oblique push-pull chopper structure according to claim 4, characterized in that: The first position refers to that the chopper assembly is located at an end of the reinforcement beam close to the vehicle body; and the third position refers to an end of the reinforcement beam away from the vehicle body.

6. The oblique push-pull chopper structure according to claim 4, characterized in that: The suspension portion further includes a protective cover; An installation space is provided between the vehicle body, the reinforcement beam and the sliding beam; The first edge of the shield is connected to the vehicle body, the second edge of the shield is connected to the reinforcing beam, and the third edge of the shield is connected to the sliding beam, so that the shield seals the installation space.

7. The oblique push-pull chopper structure according to claim 4, characterized in that: The suspension part also includes a protective cover and a mounting plate; One end of the sliding beam and the reinforcing beam is fixed to the vehicle body through a mounting plate; An installation space is enclosed between the installation plate, the reinforcement beam and the sliding beam; The first edge of the shield is along the mounting plate, the second edge of the shield is connected to the reinforcing beam, and the third edge of the shield is connected to the sliding beam, so that the shield seals the mounting space.

8. The oblique push-pull chopper structure according to claim 4, characterized in that: The suspension portion further includes a reinforcement plate; One end of the sliding beam away from the vehicle body is connected to a first end of the reinforcing beam away from the vehicle body through a reinforcing plate.

9. The oblique push-pull chopper structure according to claim 4, characterized in that: The chopper assembly includes a first side plate, a second side plate and a movable blade shaft; The first side plate and the second side plate are arranged at intervals along the width direction of the vehicle body, two ends of the movable knife shaft are respectively connected between the first side plate and the second side plate, and a blade is sleeved on the movable knife shaft; The end surfaces of the first side plate and the second side plate facing the sliding beam are at a second preset angle with the horizontal plane; One end of the rolling member is fixed to the first side plate and / or the second side plate and the other end is rollingly disposed on the sliding beam, so that the chopper assembly can slide from the first position to the third position.

10. The oblique push-pull chopper structure according to claim 9, characterized in that: The rolling member includes a roller and a connecting plate; One end of the connecting plate is arranged on the first side plate and / or the second side plate; the other end of the connecting plate is arranged on the slideway through a roller.

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