A moldboard angle adjustment mechanism and a turnover moldboard having the same

Abstract

The application discloses a plough head angle adjusting mechanism and a turnover plough head with the same, and belongs to the field of agricultural machinery. The turnover plough head comprises a plough head assembly, a turnover assembly rotatably connected with the plough head assembly, and an angle adjusting assembly arranged on the plough head assembly on both sides of the turnover assembly and used for adjusting the angle of the turnover assembly. The angle adjusting assembly comprises a fixed seat connected with the plough head assembly, an adjusting screw rod rotatably connected with the fixed seat, a moving block threadedly connected with the adjusting screw rod, and a positioning force block arranged on the lower end of the fixed seat and in contact with the lower end of the adjusting screw rod. When the turnover assembly drives the plough body to rotate, a great tensile force and torsional force are generated on the adjusting screw rod, the tensile force and the torsional force are transmitted to the moving block and the positioning force block and are converted into pressure, and then the positioning force block and the moving block generate a counterforce on the adjusting screw rod to offset the counterforce, so that the adjusting screw rod is prevented from being damaged and economic loss is avoided.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, and in particular to a plowshare angle adjustment mechanism and a reversible plowshare having the same angle adjustment mechanism. Background Technology

[0002] The hydraulic reversible two-way plow includes a plow head mechanism, a reversing cylinder, a ground wheel mechanism, an I-beam, a plow frame, and a plow body. The plow head mechanism includes a reversing corner piece and a tilt adjustment structure. The reversing corner piece is equipped with a reversing cylinder seat. The plow frame is connected to the reversing corner piece via the I-beam. The extension and retraction of the piston rod in the cylinder drives the forward and reverse plow bodies on the plow frame to perform vertical reversing motions, alternating between working positions. The tilt adjustment structure serves two purposes: firstly, it stops the reversing corner piece on the plow head mechanism, ensuring the plow body connected to the corner piece rotates vertically; secondly, when the plow body is not perpendicular to the ground, it can be used to adjust the reversing angle of the corner piece to maintain the plow body perpendicular to the ground.

[0003] The existing tilt adjustment structure involves inserting bolts into the stop hook and fixing it by welding, and adjusting it using the handle on the upper side. This results in poor impact resistance. Furthermore, because the stop hook is placed vertically, after adjusting the flipping corner piece to a certain flipping angle using the handle, the force position of the impact component on the stop hook limiting surface shifts from the center position to both sides, making the stop hook prone to breakage.

[0004] Patent CN213214254U discloses a plowshare assembly with a tilt adjustment structure. This structure includes a set of adjusting screw seats located on both sides of the plowshare main shaft, and adjusting screws that mate with these seats. The adjusting screw seats are positioned on the plowshare assembly facing the tilting member, and are tilted towards the plowshare main shaft. The adjusting screws pass through the adjusting screw seats from below, stopping the tilting member. This patented tilt adjustment structure uses adjusting screws to adjust and stop the tilting angle of the tilting member from below, effectively solving the problem of easy damage to tilt adjustment structures. However, it also introduces new problems: angle adjustment requires the operator to lie on the ground to turn the adjusting screws, which is inconvenient. Furthermore, due to the large size and weight of the plow frame, accidents are prone to occur during angle adjustment or installation of the tilt adjustment structure, affecting the operator's safety. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a plowshare angle adjustment mechanism and a reversible plowshare with the same mechanism. This effectively prevents the breakage of the stop adjustment screw, is easy to operate, and reduces the risk of personal injury.

[0006] The object of this invention is achieved in the following manner: A plowshare angle adjustment mechanism, comprising: Angle adjustment component, connected to the plowshare assembly; The angle adjustment component includes: The mounting base connects to the plowshare assembly; The adjusting screw is rotatably connected to the fixed base; The movable stop is threadedly connected to the adjusting screw. The positioning force block is located on the fixed seat at the lower end of the adjusting screw and is in contact with the lower end of the adjusting screw.

[0007] As an optional solution to the technical solution of the present invention, the fixing base includes: The base plate is fixed and connected to the plowshare assembly; Side plates are provided on both sides of the fixed base plate; A top plate is located above the side plate, and the adjusting screw is rotatably connected to the top plate; The positioning force block is located below the side plate, and the fixed base plate, side plate, top plate and positioning force block form an adjustment chamber, and the movable stop block is located in the adjustment chamber.

[0008] As an optional solution to the technical solution of the present invention, the fixing base includes: The base plate is fixed and connected to the plowshare assembly; A sliding groove is provided on a fixed base plate, and the movable stop is slidably connected to the sliding groove; A top plate is provided on a fixed base plate above the slide groove, and the adjusting screw is rotatably connected to the top plate; The positioning force component is located on the fixed base plate below the slide groove.

[0009] As an optional solution of the present invention, the lower end of the adjusting screw is a tapered structure, and the positioning force block is provided with a tapered hole that is compatible with the tapered structure of the adjusting screw.

[0010] As an optional solution to the technical solution of the present invention, the angle adjustment component further includes: An adjustment handle is located at the upper end of the adjustment screw; A locking mechanism, located on the top plate, is used to restrict the rotation of the adjusting screw.

[0011] As an optional solution to the technical solution of the present invention, the locking mechanism includes: A locking and fixing seat is located on the top plate; The locking pin is threadedly connected to the locking retaining seat. A limiting clamp is connected between the locking pin and the locking fixing seat.

[0012] As an optional solution of the present invention, the inner diameter of the hole at the connection between the top plate and the adjusting screw is smaller than the outer diameter of the adjusting screw below the top plate, so as to prevent the adjusting screw from sliding out of the top plate.

[0013] In addition, the present invention also provides a reversing plowshare having the above-mentioned angle adjustment mechanism, comprising: Plowshare assembly; A flipping assembly is rotatably connected to the plowshare assembly; Also includes: An angle adjustment component is provided on the plowshare components on both sides of the flipping component, and is used to adjust the angle of the flipping component.

[0014] As an optional solution to the technical solution of the present invention, the flipping component includes: The main shaft is flipped and rotatably connected to the plowshare assembly; The spindle sleeve is connected to the tilting spindle. Flip the cylinder seat and connect it to the main shaft sleeve; A connecting shaft sleeve is connected to the main shaft sleeve, and is respectively located on both sides of the main shaft sleeve along with the tilting cylinder seat; The side-swing cylinder seat is connected to the connecting shaft sleeve.

[0015] The beneficial effects of this invention are: (1) When the plow head of the present invention drives the plow body to rotate, it will generate huge tension and torque on the adjusting screw. The tension and torque are transmitted to the moving block and the positioning force block and converted into pressure. Then, the positioning force block and the moving block generate a reaction force on the adjusting screw to cancel each other out, thus avoiding damage to the adjusting screw and economic loss. (2) The tilting plow head of the present invention adopts the method of upper mounting of the adjusting screw, so that when adjusting the angle, the operator does not need to go to the bottom of the plow body to operate, reducing safety hazards, making operation convenient and maintenance simple; (3) The lower end of the adjusting screw in the angle adjusting assembly of the present invention is a tapered structure, and the positioning force block is provided with a tapered hole that is compatible with the tapered structure of the adjusting screw. The tapered structure and tapered hole of the adjusting screw can reduce the force on the adjusting screw during the working process of the plow body, and decompose the force to the positioning force block. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the first state structure of the hydraulic plowshare bidirectional tilting plowshare mechanism of the present invention; Figure 2 This is a schematic diagram of the second state structure of the hydraulic plowshare bidirectional tilting plowshare mechanism of the present invention; Figure 3 This is a schematic diagram of the third state structure of the hydraulic plow head bidirectional tilting plow head mechanism of the present invention; Figure 4 This is a schematic diagram of the angle adjustment component in Embodiment 1 of the present invention; Figure 5 This is a cross-sectional view of the angle adjustment component in Embodiment 1 of the present invention; Figure 6 This is a cross-sectional view of the angle adjustment component in Embodiment 2 of the present invention.

[0018] Figure label: 1- Plowshare assembly; 2-Tilting assembly; 21-Tilting spindle; 22-Spindle sleeve; 23-Tilting cylinder seat; 24-Connecting shaft sleeve; 25-Side swing cylinder seat; 3-Angle adjustment assembly; 31-Fixed base; 311-Fixed base plate; 312-Side plate; 313-Top plate; 314-Slide groove; 32-Adjusting screw; 33-Moving stop; 34-Positioning force block; 341-Conical hole; 35-Adjusting handle; 36-Locking mechanism; 361-Locking fixed base; 362-Locking pin; 363-Limit clamp. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0021] In the description of the embodiments, unless otherwise explicitly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or a connection through an intermediate medium; it can also refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] like Figure 1As shown, a hydraulic plow bidirectional reversing plow mechanism includes: a plow assembly 1, a reversing assembly 2, and an angle adjustment assembly 3, wherein the reversing assembly 2 is rotatably connected to the plow assembly 1; the angle adjustment assembly 3 is disposed on the plow assembly 1 on both sides of the reversing assembly 2 and is used to adjust the angle of the reversing assembly 2.

[0023] like Figure 2 , 3 As shown, the overturning assembly 2 includes: an overturning main shaft 21, a main shaft sleeve 22, an overturning cylinder seat 23, a connecting shaft sleeve 24, and a side-swinging cylinder seat 25. The overturning main shaft 21 is rotatably connected to the plowshare assembly 1; the main shaft sleeve 22 is connected to the overturning main shaft 21, and one end of the overturning main shaft 21 is connected to the plow body; the overturning cylinder seat 23 is connected to the main shaft sleeve 22; the cylinder seat of the overturning cylinder is hinged to the plowshare assembly 1, and the free end of the piston rod of the overturning cylinder is hinged to the overturning cylinder seat 23, causing the overturning cylinder seat 23 to rotate under the action of the overturning cylinder; the connecting shaft sleeve 24 is connected to the main shaft sleeve 22 and is located on both sides of the main shaft sleeve 22, respectively; the side-swinging cylinder seat 25 is connected to the connecting shaft sleeve 24, and under the action of the rotation of the overturning cylinder seat 23, causes the plow body connected to the connecting shaft sleeve 24 to overturn.

[0024] Specifically, such as Figure 4 As shown, the angle adjustment assembly 3 includes: a fixed base 31, an adjusting screw 32, a moving stop 33, and a positioning force component block 34. The fixed base 31 is connected to the plow head assembly 1; the adjusting screw 32 is rotatably connected to the fixed base 31; the moving stop 33 is threadedly connected to the adjusting screw 32; and the positioning force component block 34 is disposed on the fixed base 31 at the lower end of the adjusting screw 32 and contacts the lower end of the adjusting screw 32. Rotating the adjusting screw 32 causes the moving stop 33 to move up and down. The moving stop 33 adjusts the angle of the tilting cylinder seat 23, thereby adjusting the angle of the volume. The lower end of the adjusting screw 32 contacts the positioning force block 34, which supports the adjusting screw 32. At the same time, the pressure and torque generated by the plow body on the adjusting screw 32 during operation are transmitted to the moving stop 33 and the positioning force block 34 and converted into pressure. The reaction force generated by the positioning force block 34 and the moving stop 33 on the adjusting screw 32 is then canceled out, preventing damage to the adjusting screw 32.

[0025] like Figure 5As shown, as a further embodiment, the fixed base 31 includes: a fixed base plate 311, side plates 312, and a top plate 313. The fixed base plate 311 is connected to the plowshare assembly 1. The side plates 312 are located on both sides of the fixed base plate 311. The top plate 313 is located above the side plates 312, and the adjusting screw 32 is rotatably connected to the top plate 313. The positioning force distribution block 34 is located below the side plates 312. The fixed base plate 311, side plates 312, top plate 313, and positioning force distribution block 34 form an adjustment chamber. The moving stop block 33 is located in the adjustment chamber. When the adjusting screw 32 is rotated, the moving stop block 33 moves up and down in the adjustment chamber. The side plates 312 on both sides limit the moving stop block 33, preventing the moving stop block 33 from rotating with the adjustment screw 32. At the same time, part of the force on the adjusting screw 32 is distributed to the fixed base plate 311 through the moving stop block 33 and the side plates 312. The connection between the adjusting screw 32 and the top plate 313 is a smooth screw. The inner diameter of the hole at the connection between the top plate 313 and the adjusting screw 32 is smaller than the outer diameter of the adjusting screw 32 below the top plate 313 to prevent the adjusting screw 32 from sliding out of the top plate 313.

[0026] As a further embodiment, the lower end of the adjusting screw 32 has a tapered structure, and the positioning force distribution block 34 is provided with a tapered hole 341 that is adapted to the tapered structure of the adjusting screw 32. The tapered structure of the adjusting screw and the tapered hole 341 can reduce the force on the adjusting screw 32 during the working process of the plow body, and decompose the force to the positioning force distribution block.

[0027] As a further embodiment, the angle adjustment assembly 3 also includes an adjustment handle 35 and a locking mechanism 36, wherein the adjustment handle 35 is located at the upper end of the adjustment screw 32; and the locking mechanism 36 is located on the top plate 313 and is used to restrict the rotation of the adjustment screw 32.

[0028] Specifically, such as Figure 5 As shown, the locking mechanism 36 includes a locking fixing seat 361, a locking pin 362, and a limiting clamp 363. The locking fixing seat 361 is located on the top plate 313. The locking pin 362 is threadedly connected to the locking fixing seat 361. The limiting clamp 363 is connected between the locking pin 362 and the locking fixing seat 361. When it is necessary to lock the adjusting screw 32, tightening the locking pin 362 will fix the limiting clamp 363 between the nut of the locking pin 362 and the locking fixing seat 361. The limiting groove of the limiting clamp 363 will fix the adjusting screw 32.

[0029] Example 2

[0030] like Figure 6As shown, the difference between this embodiment and Embodiment 1 lies in the structure of the fixed base 31. In this embodiment, the fixed base 31 includes: a fixed base plate 311, a sliding groove 314, and a top plate 313. The fixed base plate 311 is connected to the plowshare assembly 1. The sliding groove 314 is disposed on the fixed base plate 311, and the moving block 33 is slidably connected to the sliding groove 314. The top plate 313 is disposed on the fixed base plate 311 above the sliding groove 314, and the adjusting screw 32 is rotatably connected to the top plate 313. The positioning force distribution block 34 is disposed on the fixed base plate 311 below the sliding groove 314. The sliding groove 314 is used to limit the movement of the moving block 33, and part of the force on the adjusting screw 32 is distributed to the fixed base plate 311 by distributing it to the moving block 33 and the sliding groove 314.

[0031] The reversible plowshare of this invention is threadedly connected to a movable stop 33 via an adjusting screw 32. The movable stop 33 is limited by a side plate or a sliding groove. There is no thread between the adjusting screw 32 and the top plate 313; the connection is a smooth rod. The movable stop 33 can be moved up and down by rotating the adjusting screw 32. At the same time, the adjusting screw 32 passes through the lower end of the movable stop 33 and contacts the positioning force block 34. Compared with the prior art where the lower end of the adjusting screw 32 is fixedly connected to the movable stop 33, the threaded connection between the adjusting screw 32 and the top plate 313 is more conducive to the decomposition of the force on the adjusting screw 32, reducing the force on the adjusting screw 32 and preventing the adjusting screw 32 from breaking due to excessive force. Compared with the prior art where the adjusting screw 32 is placed at the bottom, it is easier to inspect, install, and adjust the angle, while also reducing personal safety hazards.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by the present invention.

Claims

1. A reversible plowshare, comprising: Plowshare assembly (1); The flipping component (2) is rotatably connected to the plowshare component (1); Its characteristic is that it further includes: The plowshare angle adjustment mechanism includes: An angle adjustment component (3) is provided on the plowshare components (1) on both sides of the flipping component (2) and is used to adjust the angle of the flipping component (2); The angle adjustment component (3) includes: The mounting base (31) is connected to the plow assembly (1); The adjusting screw (32) is rotatably connected to the fixed base (31); The movable stop (33) is threadedly connected to the adjusting screw (32); The positioning force block (34) is located on the fixed seat (31) at the lower end of the adjusting screw (32) and is in contact with the lower end of the adjusting screw (32); The lower end of the adjusting screw (32) is a tapered structure, and the positioning force block (34) is provided with a tapered hole (341) that is compatible with the tapered structure of the adjusting screw (32); The flipping component (2) includes: The main shaft (21) is flipped and rotatably connected to the plowshare assembly (1); The spindle sleeve (22) is connected to the rotating spindle (21); The cylinder seat (23) is flipped over and connected to the main shaft sleeve (22); The connecting shaft sleeve (24) is connected to the main shaft sleeve (22) and is respectively located on both sides of the main shaft sleeve (22) and the tilting cylinder seat (23); The side-swing cylinder seat (25) is connected to the connecting shaft sleeve (24); By rotating the adjusting screw (32), the moving block (33) moves up and down, and the moving block (33) adjusts the angle of the tilting cylinder seat (23).

2. The reversible plowshare according to claim 1, characterized in that, The fixing base (31) includes: The base plate (311) is fixed and connected to the plow assembly (1); Side plates (312) are provided on both sides of the fixed base plate (311); A top plate (313) is located above the side plate (312), and the adjusting screw (32) is rotatably connected to the top plate (313); The positioning force block (34) is located below the side plate (312). The fixed base plate (311), side plate (312), top plate (313) and positioning force block (34) form an adjustment chamber. The moving stop block (33) is located in the adjustment chamber.

3. The reversible plowshare according to claim 1, characterized in that, The fixing base (31) includes: The base plate (311) is fixed and connected to the plow assembly (1); A sliding groove (314) is provided on a fixed base plate (311), and the movable stop (33) is slidably connected to the sliding groove (314); The top plate (313) is located on the fixed base plate (311) above the slide groove (314), and the adjusting screw (32) is rotatably connected to the top plate (313); The positioning force component (34) is located on the fixed base plate (311) below the slide groove (314).

4. The reversible plowshare according to claim 2 or 3, characterized in that, The angle adjustment component (3) also includes: An adjustment handle (35) is located at the upper end of the adjustment screw (32); A locking mechanism (36) is provided on the top plate (313) to restrict the rotation of the adjusting screw (32).

5. The reversible plowshare according to claim 4, characterized in that, The locking mechanism (36) includes: A locking fixing seat (361) is provided on the top plate (313); Locking pin (362) is threadedly connected to locking retainer (361); The limiting clamp (363) is connected between the locking pin (362) and the locking fixing seat (361).

6. The reversible plowshare according to claim 2 or 3, characterized in that, The inner diameter of the hole at the connection between the top plate (313) and the adjusting screw (32) is smaller than the outer diameter of the adjusting screw (32) below the top plate (313) to prevent the adjusting screw (32) from sliding out of the top plate (313).

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