Straw blockage preventing device of hydraulic turnover plow

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a straw blocking prevention device of a hydraulic turnover plow, which is additionally arranged on a connecting rod of an auxiliary plow share, and comprises a vertically arranged front rotating sleeve, and an upper arc-shaped connecting rod assembly and a lower arc-shaped connecting rod assembly which are respectively arranged at the top end and the bottom end of the front rotating sleeve, the movable plug is located in the front rotating sleeve, the top end and the bottom end of the movable plug are connected with the upper arc-shaped connecting rod assembly and the lower arc-shaped connecting rod assembly in a one-to-one mode through pull ropes correspondingly, and the rear mounting shell is mounted on the connecting rod. The end, away from the front rotating sleeve, of the upper arc-shaped connecting rod assembly and the end, away from the front rotating sleeve, of the lower arc-shaped connecting rod assembly are connected through a synchronous transmission assembly located in the rear mounting shell. According to the straw blocking prevention device of the hydraulic turnover plow, straw roots can smoothly move upwards to the front rotating sleeve, and the problem that the straw roots are clamped on the support is solved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a device for preventing straw from blocking a hydraulic tipping plough. Background Art

[0002] Chinese patent document CN208175255U discloses a hydraulic turning plow to prevent straw clogging device, which has a simple structure and smooth straw flow. It includes a frame, a main plowshare is arranged on the frame through a connecting frame, an auxiliary plowshare is arranged on the frame through a connecting rod, a rolling rod is arranged on the connecting rod of the auxiliary plowshare through a bracket; and a guide rod with a smooth surface is arranged on the connecting frame of the main plowshare. If the straw comes from the front of the guide rod, the flow of the straw can be achieved, and because the tip of the auxiliary plowshare is inserted into the ground, the roots of the straw buried in the ground will be turned out by the auxiliary plowshare during the walking process, and part of the straw will be accumulated on the auxiliary plowshare, and as the accumulation increases, the roots of the straw will gradually move up and get stuck on the bracket, so that they cannot be well moved to the guide rod. Summary of the invention

[0003] To achieve the above-mentioned purpose, the present invention discloses a hydraulic flip plow straw clogging prevention device, which is installed on the connecting rod of the auxiliary plowshare, and includes: a vertically arranged front rotating sleeve and an upper arc connecting rod assembly and a lower arc connecting rod assembly respectively installed on the top and bottom ends of the front rotating sleeve, a movable plug is located in the front rotating sleeve, the top and bottom ends of the movable plug are respectively connected to the upper arc connecting rod assembly and the lower arc connecting rod assembly one by one through a pull rope, a rear mounting shell is installed on the connecting rod, and the upper arc connecting rod assembly away from the front rotating sleeve end and the lower arc connecting rod assembly away from the front rotating sleeve end are connected through a synchronous transmission assembly located in the rear mounting shell.

[0004] Preferably, the lower arc connecting rod assembly comprises:

[0005] A lower mounting cover, which is mounted on the bottom end of the front rotating sleeve;

[0006] A pull-down block is embedded and installed on the lower installation cover, and the pull-down block is connected to the bottom end of the movable plug through a pull rope;

[0007] A lower arc-shaped connecting rod, one end of which is rotatably mounted on the lower pull block away from the pull rope end, and the other end of which is connected to the synchronous transmission assembly;

[0008] The lower mounting bracket is fixedly mounted on the side end of the rear mounting shell near the bottom end, and the lower arc connecting rod is rotatably mounted on the lower mounting bracket near the end of the lower pull block.

[0009] Preferably, the upper arc connecting rod assembly comprises:

[0010] An upper mounting cover, the upper mounting cover is mounted on the top end of the front rotating sleeve;

[0011] An upper pull block is embedded and installed on the upper installation cover, and the upper pull block is connected to the top of the movable plug through a pull rope;

[0012] An upper arc-shaped connecting rod, one end of which is rotatably mounted on the upper pull block away from the pull rope end, and the other end of which is connected to the synchronous transmission assembly;

[0013] The upper mounting bracket is located at the side end of the rear mounting shell near the top position, the upper arc connecting rod is rotatably mounted on the upper mounting bracket near the upper pull block end, the upper mounting bracket extends into the rear mounting shell away from the upper arc connecting rod end, and is connected to the synchronous transmission assembly.

[0014] Preferably, the synchronous transmission assembly comprises:

[0015] A lifting block, which is located near the top of the rear mounting shell;

[0016] The upper vertical rod and the lower vertical rod are respectively installed on the top and bottom ends of the lifting block. The upper vertical rod is extended away from the lifting block end and the top end of the rear installation shell is extended away from the lifting block end and the bottom end of the rear installation shell is extended away from the lifting block end. The upper vertical rod away from the lifting block end and the lower vertical rod away from the lifting block end are both installed with a square frame. The lower arc-shaped connecting rod away from the lower pull-down block end and the upper arc-shaped connecting rod away from the upper pull-down block end are both installed with top blocks 1 and 2 that are suitable for the square frame. Top blocks 1 and 2 are arranged opposite to each other and staggered.

[0017] Preferably, a transmission bevel groove is provided on the lifting block, a transmission slide block is slidably connected in the transmission bevel groove, a transverse frame is installed on the upper mounting bracket away from the upper arc-shaped connecting rod end, and the transmission slide block is installed on the transverse frame.

[0018] Preferably, a rear mounting shell is installed with a rear fixing cover through a flip shaft away from the front rotating sleeve end, and the rear mounting shell is installed on the connecting rod through the rear fixing cover, and wedge-shaped ribs are symmetrically arranged in groups of three-three on the inner wall of the rear fixing cover, and the turntable is located in the rear fixing cover, and the wedge-shaped top block is eccentrically installed on the turntable and adapted to the wedge-shaped rib setting. When the turntable drives the wedge-shaped top block to rotate to a high position or a low position, the wedge-shaped top block is located between the two groups of wedge-shaped ribs, and the connecting shaft is installed on the rear mounting shell through a spherical turn block, one end of the connecting shaft extends into the rear fixing cover and is connected to the turntable, and the other end of the connecting shaft extends into the rear mounting shell and is installed with a transmission gear, and a transmission rack meshing with the transmission gear is installed on the lower vertical rod.

[0019] Preferably, left and right grooves are symmetrically arranged on the wedge-shaped edge strip to adapt to the setting of the wedge-shaped top block.

[0020] Preferably, the flip axis is located at the top and bottom ends of the rear fixing cover, and the rear fixing cover is provided with an avoidance bevel near the end of the rear mounting shell to facilitate the rotation of the rear mounting shell.

[0021] Preferably, the surface of the front rotating sleeve is provided with a roughened layer to increase the roughness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of installing the present invention on the connecting rod of the auxiliary plowshare;

[0024] Figure 2 It is the appearance diagram of the present invention;

[0025] Figure 3 The cross-sectional view of the present invention Figure 1 (front rotating sleeve in vertical state);

[0026] Figure 4 for Figure 3 The enlarged view of the middle label A;

[0027] Figure 5 It is a schematic diagram of the cooperation between the wedge-shaped ribs and the wedge-shaped top block in the rear fixed cover of the present invention;

[0028] Figure 6 The cross-sectional view of the present invention Figure 2 (The front rotating sleeve is in the tilted state).

[0029] In the figure: 10. auxiliary plowshare; 11. connecting rod; 12. front rotating sleeve; 13. upper arc-shaped connecting rod assembly; 14. lower arc-shaped connecting rod assembly; 15. movable plug; 16. pull rope; 17. rear mounting shell; 18. lower mounting cover; 19. lower pull block; 20. lower arc-shaped connecting rod; 21. lower mounting bracket; 22. upper mounting cover; 23. upper pull block; 24. upper arc-shaped connecting rod; 25. upper mounting bracket; 26. lifting block; 27. upper vertical rod; 28. lower vertical rod; 29. ​​square frame; 30. top block one; 31. top block two; 32. transmission inclined groove; 33. transverse frame; 34. tilting shaft; 35. rear fixed cover; 36. wedge-shaped ribs; 37. turntable; 38. wedge-shaped top block; 39. connecting shaft; 40. transmission gear; 41. avoidance bevel; 42. spherical rotating block. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] like Figures 1 to 6 As shown, a hydraulic flip plow straw clogging prevention device provided in this embodiment is installed on the connecting rod 11 of the auxiliary plowshare 10, including: a vertically arranged front rotating sleeve 12 and an upper arc connecting rod assembly 13 and a lower arc connecting rod assembly 14 respectively installed on the top and bottom ends of the front rotating sleeve 12, a movable plug 15 is located in the front rotating sleeve 12, and the top and bottom ends of the movable plug 15 are respectively connected to the upper arc connecting rod assembly 13 and the lower arc connecting rod assembly 14 one by one through a pull rope 16, a rear mounting shell 17 is installed on the connecting rod 11, and the end of the upper arc connecting rod assembly 13 away from the front rotating sleeve 12 and the end of the lower arc connecting rod assembly 14 away from the front rotating sleeve 12 are connected by a synchronous transmission assembly located in the rear mounting shell 17.

[0034] The working principle and beneficial effects of the above technical solution are:

[0035] The invention provides a device for preventing straw from being blocked by a hydraulic reversible plow. In the process of the straw roots turned out from the ground by the auxiliary plowshare 10 moving upward along the auxiliary plowshare 10, the arc-shaped setting of the lower arc-shaped connecting rod assembly 14 facilitates the guiding of the straw roots to move upward to the front rotating sleeve 12. In the process of guiding the straw roots to move upward, the lower arc-shaped connecting rod assembly 14 pulls the upper arc-shaped connecting rod assembly 13 through the cooperation of the pull rope 16 and the movable plug 15 in the front rotating sleeve 12, and the synchronous transmission assembly in the rear mounting shell 17 also moves to realize the inclined setting of the front rotating sleeve 12, so that the straw roots on the lower arc-shaped connecting rod assembly 14 can be more conveniently moved upward to the front rotating sleeve 12. The invention discloses a device for preventing straw from being blocked by a hydraulic reversible plow. The straw roots can be smoothly moved upward to the front rotating sleeve 12, solving the problem of the straw roots being stuck on the bracket.

[0036] In one embodiment, the lower arc link assembly 14 includes:

[0037] A lower mounting cover 18, the lower mounting cover 18 is mounted on the bottom end of the front rotating sleeve 12;

[0038] A pull-down block 19, which is embedded in the lower mounting cover 18 and connected to the bottom end of the movable plug 15 via a pull rope 16;

[0039] A lower arc-shaped connecting rod 20, one end of which is rotatably mounted on the lower pull block 19 away from the end of the pull rope 16, and the other end of the lower arc-shaped connecting rod 20 is connected to the synchronous transmission assembly;

[0040] The lower mounting bracket 21 is fixedly mounted on the side end of the rear mounting shell 17 near the bottom end, and the lower arc connecting rod 20 is rotatably mounted on the lower mounting bracket 21 near the end of the lower pull block 19 .

[0041] The working principle and beneficial effects of the above technical solution are:

[0042] The straw roots turned out from the ground by the auxiliary plowshare 10 move up along the auxiliary plowshare 10 and move up to the lower arc-shaped connecting rod 20. The straw roots are guided by the lower arc-shaped connecting rod 20 to move up to the front rotating sleeve 12. In the process of guiding the straw roots to move up, due to the accumulation of straw roots, the lower arc-shaped connecting rod 20 flips over on the lower mounting bracket 21, pulling the lower pull block 19 located on the lower mounting cover 18. The lower pull block 19 pulls the upper arc-shaped connecting rod assembly 13 to work through the cooperation of the pull rope 16 and the movable plug 15. When the straw roots accumulate on the lower arc-shaped connecting rod 20, synchronously, the lower arc-shaped connecting rod 20 drives the upper arc-shaped connecting rod assembly 13 to work through the synchronous transmission assembly located in the rear mounting shell 17, thereby realizing the tilting action of the front rotating sleeve 12, so that the straw roots on the lower arc-shaped connecting rod assembly 14 can be more conveniently moved up to the front rotating sleeve 12.

[0043] In one embodiment, the upper arc connecting rod assembly 13 includes:

[0044] An upper mounting cover 22, the upper mounting cover 22 is mounted on the top end of the front rotating sleeve 12;

[0045] An upper pull block 23, which is embedded in the upper mounting cover 22 and connected to the top of the movable plug 15 via a pull rope 16;

[0046] An upper arc-shaped connecting rod 24, one end of which is rotatably mounted on the upper pull block 23 away from the end of the pull rope 16, and the other end of which is connected to the synchronous transmission assembly;

[0047] The upper mounting bracket 25 is located at the side end of the rear mounting shell 17 near the top position, the upper arc connecting rod 24 is rotatably mounted on the upper mounting bracket 25 near the upper pull block 23 end, and the upper mounting bracket 25 extends into the rear mounting shell 17 away from the upper arc connecting rod 24 end and is connected to the synchronous transmission assembly.

[0048] The working principle and beneficial effects of the above technical solution are:

[0049] When the straw roots accumulate on the lower arc-shaped connecting rod 20, the lower pull block 19 is driven to pull down the movable plug 15 located in the front rotating sleeve 12 through the pull rope 16. The movable plug 15 pulls the upper pull block 23 located on the upper mounting cover 22 through the pull rope 16. The upper pull block 23 pulls the upper arc-shaped connecting rod 24 located on the upper mounting bracket 25 to flip. The upper arc-shaped connecting rod 24 and the lower arc-shaped connecting rod 20 are synchronously driven with the cooperation of the synchronous transmission assembly, thereby realizing the tilting action of the front rotating sleeve 12.

[0050] In one embodiment, the synchronous transmission assembly comprises:

[0051] A lifting block 26, the lifting block 26 is located near the top of the rear mounting shell 17;

[0052] The upper vertical rod 27 and the lower vertical rod 28 are respectively installed on the top and bottom ends of the lifting block 26. The upper vertical rod 27 extends away from the end of the lifting block 26 and is installed on the top of the shell 17, and the lower vertical rod 28 extends away from the end of the lifting block 26 and is installed on the bottom end of the shell 17. The upper vertical rod 27 away from the end of the lifting block 26 and the lower vertical rod 28 away from the end of the lifting block 26 are both installed with a square frame 29. The end of the lower arc connecting rod 20 away from the lower pull block 19 and the end of the upper arc connecting rod 24 away from the upper pull block 23 are both installed with a top block 1 30 and a top block 2 31 suitable for the square frame 29. The top block 1 30 and the top block 2 31 are arranged opposite to each other and staggered.

[0053] The working principle and beneficial effects of the above technical solution are:

[0054] When the straw roots accumulate on the lower arc connecting rod 20, the top block 1 30 on the lower arc connecting rod 20 protrudes out of the square frame 29, and the top block 2 31 on the lower arc connecting rod 20 protrudes into the square frame 29. After the square frame 29 connected to the lower vertical rod 28 is lifted, the lifting block 26, the upper vertical rod 27 connected to the lifting block 26, and the square frame 29 installed on the upper vertical rod 27 are lifted, and the top block 21 on the upper arc connecting rod 24 is squeezed out of the square frame 29, and the top block 1 30 on the upper arc connecting rod 24 is squeezed into the square frame 29. The upper arc-shaped connecting rod 24 is gradually pulled out of the square frame 29, thereby assisting the lifting of the square frame 29. Because the upper arc-shaped connecting rod 24 is gradually pulled out of the square frame 29, the top end of the front rotating sleeve 12 moves away from the mounting shell 17. Because the lower arc-shaped connecting rod 20 gradually penetrates into the square frame 29, the bottom end of the front rotating sleeve 12 moves toward the mounting shell 17, thereby realizing the tilting action of the front rotating sleeve 12, so as to facilitate the straw root on the lower arc-shaped connecting rod assembly 14 to move up to the front rotating sleeve 12.

[0055] In one embodiment, a transmission bevel groove 32 is provided on the lifting block 26 , a transmission slider is slidably connected in the transmission bevel groove 32 , a transverse frame 33 is installed on the upper mounting bracket 25 away from the end of the upper arc-shaped connecting rod 24 , and the transmission slider is installed on the transverse frame 33 .

[0056] The working principle and beneficial effects of the above technical solution are:

[0057] After the square frame 29 connected to the lower vertical rod 28 is lifted, the lifting block 26 is driven to be lifted. Under the cooperation of the transmission inclined groove 32 and the transmission slider on the lifting block 26, the transverse frame 33 connected to the transmission slider and the upper mounting bracket 25 installed on the transverse frame 33 are driven to move in the direction away from the mounting shell 17, thereby accelerating the upper arc-shaped connecting rod 24 to withdraw the square frame 29 (but the upper arc-shaped connecting rod 24 is not disconnected from the square frame 29), so that the top end of the front rotating sleeve 12 moves quickly in the direction away from the mounting shell 17, thereby quickly realizing the tilting action of the front rotating sleeve 12.

[0058] In one embodiment, a rear fixing cover 35 is installed at the end of the rear mounting shell 17 away from the front rotating sleeve 12 through a flip shaft 34. The rear mounting shell 17 is installed on the connecting rod 11 through the rear fixing cover 35. Wedge-shaped ribs 36 are symmetrically arranged in groups of three on the inner wall of the rear fixing cover 35. A turntable 37 is located in the rear fixing cover 35. A wedge-shaped top block 38 is eccentrically installed on the turntable 37 and is adapted to the setting of the wedge-shaped ribs 36. When the turntable 37 drives the wedge-shaped top block 38 to rotate to a high position or a low position, the wedge-shaped top block 38 is located between the two groups of wedge-shaped ribs 36. A connecting shaft 39 is installed on the rear mounting shell 17 through a spherical turntable 42. One end of the connecting shaft 39 extends into the rear fixing cover 35 and is connected to the turntable 37. The other end of the connecting shaft 39 extends into the rear mounting shell 17 and is installed with a transmission gear 40. A transmission rack meshing with the transmission gear 40 is installed on the lower vertical rod 28.

[0059] The working principle and beneficial effects of the above technical solution are:

[0060] After the square frame 29 connected to the lower vertical rod 28 is lifted, the lower vertical rod 28 drives the connecting shaft 39 connected to the transmission gear 40 and the turntable 37 installed on the connecting shaft 39 to rotate in the rear fixed cover 35 through the cooperation of the transmission rack and the transmission gear 40. The wedge-shaped top block 38 on the turntable 37 slides on the wedge-shaped ribs 36 during the circular motion, thereby realizing the rear mounting shell 17 on the rear fixed cover 35 to swing left and right with the flip shaft 34 as the center, and the front rotating sleeve 12 installed on the rear mounting shell 17 swings left and right, thereby realizing the rapid separation of the straw on the front rotating sleeve 12. When the wedge-shaped top block 38 rotates to a high position or a low position, the wedge-shaped top block 38 is located between the two sets of wedge-shaped ribs 36, so that it will not move.

[0061] In one embodiment, left and right grooves are symmetrically arranged on the wedge-shaped rib 36 to adapt to the arrangement of the wedge-shaped top block 38 .

[0062] The beneficial effects of the above technical solution are:

[0063] The arrangement of the left and right grooves facilitates the sliding of the wedge-shaped top block 38 on the wedge-shaped rib 36 .

[0064] In one embodiment, the flip shaft 34 is located at the top and bottom ends of the rear fixing cover 35 , and the rear fixing cover 35 is provided with an avoidance bevel 41 near the rear mounting shell 17 to facilitate the rotation of the rear mounting shell 17 .

[0065] The beneficial effects of the above technical solution are:

[0066] The avoidance oblique opening 41 is provided to facilitate the rear mounting shell 17 to be mounted on the rear fixing cover 35 and to perform a left-right swinging motion with the tilting shaft 34 as the center.

[0067] In one embodiment, the surface of the front rotating sleeve 12 is provided with a roughened layer to increase the roughness.

[0068] The beneficial effects of the above technical solution are:

[0069] The provision of the roughened layer facilitates the rotation of the front rotating sleeve 12 .

[0070] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A device for preventing straw from blocking a hydraulically-operated reversible plow, mounted on a connecting rod (11) of an auxiliary plowshare (10), characterized in that: include: A front rotating sleeve (12) is vertically arranged, and an upper arc-shaped connecting rod assembly (13) and a lower arc-shaped connecting rod assembly (14) are respectively installed at the top and bottom ends of the front rotating sleeve (12); a movable plug (15) is located in the front rotating sleeve (12); the top and bottom ends of the movable plug (15) are respectively connected to the upper arc-shaped connecting rod assembly (13) and the lower arc-shaped connecting rod assembly (14) one by one through a pull rope (16); a rear mounting shell (17) is installed on the connecting rod (11); the end of the upper arc-shaped connecting rod assembly (13) away from the front rotating sleeve (12) and the end of the lower arc-shaped connecting rod assembly (14) away from the front rotating sleeve (12) are connected through a synchronous transmission assembly located in the rear mounting shell (17).

2. A device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 1, characterized in that: The lower arc connecting rod assembly (14) comprises: a lower mounting cover (18) mounted on the bottom end of the front rotating sleeve (12); a lower pull block (19) embedded and mounted on the lower mounting cover (18), and the lower pull block (19) is connected to the bottom end of the movable plug (15) through a pull rope (16); one end of the lower arc connecting rod (20) is rotatably mounted on the end of the lower pull block (19) away from the pull rope (16), and the other end of the lower arc connecting rod (20) is connected to the synchronous transmission assembly; a lower mounting bracket (21) is fixedly mounted on the side end of the rear mounting shell (17) near the bottom end, and the lower arc connecting rod (20) is rotatably mounted on the lower mounting bracket (21) near the end of the lower pull block (19).

3. A device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 1, characterized in that: The upper arc connecting rod assembly (13) comprises: an upper mounting cover (22) mounted on the top end of the front rotating sleeve (12); an upper pull block (23) embedded and mounted on the upper mounting cover (22), and the upper pull block (23) is connected to the top end of the movable plug (15) through a pull rope (16); one end of the upper arc connecting rod (24) is rotatably mounted on the end of the upper pull block (23) away from the pull rope (16), and the other end of the upper arc connecting rod (24) is connected to the synchronous transmission assembly; an upper mounting bracket (25) is located at a side end of the rear mounting shell (17) close to the top end, and the upper arc connecting rod (24) is rotatably mounted on the upper mounting bracket (25) close to the end of the upper pull block (23), and the upper mounting bracket (25) extends into the rear mounting shell (17) away from the end of the upper arc connecting rod (24), and is connected to the synchronous transmission assembly.

4. A device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 3, characterized in that: The synchronous transmission assembly comprises: a lifting block (26) located near the top of the rear mounting shell (17); an upper vertical rod (27) and a lower vertical rod (28) respectively mounted on the top and bottom of the lifting block (26); an end of the upper vertical rod (27) away from the lifting block (26) extends out of the top of the rear mounting shell (17); an end of the lower vertical rod (28) away from the lifting block (26) extends out of the bottom of the rear mounting shell (17); a square frame (29) is mounted on the end of the upper vertical rod (27) away from the lifting block (26) and the end of the lower vertical rod (28) away from the lifting block (26); a top block 1 (30) and a top block 2 (31) adapted to the square frame (29) are mounted on the end of the lower arc connecting rod (20) away from the lower pull block (19) and the end of the upper arc connecting rod (24) away from the upper pull block (23); the top block 1 (30) and the top block 2 (31) are arranged opposite to each other and staggered.

5. A device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 4, characterized in that: A transmission chute (32) is provided on the lifting block (26), a transmission slide block is slidably connected in the transmission chute (32), a transverse frame (33) is installed on the upper mounting bracket (25) away from the end of the upper arc-shaped connecting rod (24), and the transmission slide block is installed on the transverse frame (33).

6. A device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 4, characterized in that: A rear fixing cover (35) is installed at the end of the rear mounting shell (17) away from the front rotating sleeve (12) through a tilting shaft (34). The rear mounting shell (17) is installed on the connecting rod (11) through the rear fixing cover (35). Wedge-shaped ribs (36) are symmetrically arranged in groups of three on the inner wall of the rear fixing cover (35). The rotating disk (37) is located in the rear fixing cover (35). The wedge-shaped top block (38) is eccentrically installed on the rotating disk (37) and is adapted to be arranged with the wedge-shaped ribs (36). The rotating disk (37) drives the wedge-shaped top block When the wedge-shaped top block (38) is rotated to the high position or the low position, the wedge-shaped top block (38) is located between the two groups of wedge-shaped ribs (36), the connecting shaft (39) is installed on the rear mounting shell (17) through the spherical rotating block (42), one end of the connecting shaft (39) extends into the rear fixed cover (35) and is connected to the rotating disk (37), the other end of the connecting shaft (39) extends into the rear mounting shell (17) and is installed with a transmission gear (40), and a transmission rack meshing with the transmission gear (40) is installed on the lower vertical rod (28).

7. A device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 6, characterized in that: The wedge-shaped rib (36) is symmetrically provided with left and right grooves to match the wedge-shaped top block (38).

8. The device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 6, characterized in that: The turning shaft (34) is located at the top and bottom ends of the rear fixing cover (35), and the rear fixing cover (35) is provided with an avoidance oblique opening (41) at the end close to the rear mounting shell (17) to facilitate the rotation of the rear mounting shell (17).

9. The device for preventing straw from blocking a hydraulically-operated reversible plow according to claim 1, characterized in that: The surface of the front rotating sleeve (12) is provided with a roughened layer for increasing the roughness.

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