CN116267043A - Adjustable high-efficiency rotary cultivator - Google Patents

Abstract

The invention discloses an adjustable high-efficiency rotary cultivator, which relates to the technical field of cultivated lands and comprises a rotary tillage assembly, wherein the rotary tillage assembly comprises a supporting plate, a rotary pipe, a cutter holder and rotary blades, two ends of the rotary pipe are rotatably connected with the supporting plate, a movable groove is formed in the rotary pipe, a mounting hole is formed in the movable groove, a limit groove is formed in the movable groove, the inner wall of the limit groove is in sliding connection with a limit block, the limit block is fixedly connected with a limit shaft, the cutter holder is fixedly connected with a mounting shaft, and the mounting shaft is rotatably connected with the mounting hole. According to the rotary tillage device, when the rotary tillage is performed on hard soil such as hardened soil, the limiting shaft is controlled to slide in the direction of approaching the mounting shaft on the inner wall of the mounting groove, the cutter holder drives the rotary blade to move, at the moment, the soil cutting angle of the rotary blade is reduced, the rotary blade is easier to cut into the soil, the soil is deeper, the rotary tillage effect is better, the included angle between the rotary blade and the soil is smaller, the stress of the rotary blade body is also small, deformation or fracture of the rotary blade is avoided, and damage to the rotary blade is reduced.

Description

Adjustable high-efficiency rotary cultivator

Technical Field

The invention relates to the technical field of cultivated lands, in particular to an adjustable high-efficiency rotary cultivator.

Background

The rotary cultivator is a cultivator matched with a tractor to complete the tillage and harrowing operation. The soil-crushing machine has the characteristics of strong soil-crushing capability, flat ground surface after tillage and the like, so that the soil-crushing machine is widely applied; meanwhile, the stubble buried below the ground surface can be cut up, so that the operation of the seeder is facilitated, and a good seed bed is provided for later seeding.

At present, the Chinese patent with the application number of CN2020102199871 discloses a vibration scraping double-roller staggered type anti-winding and anti-sticking rotary cultivator for a rice stubble field, and the rotary cultivator comprises a frame whole, a knife roller assembly, a scraping device and the like and has the advantages of being capable of reducing soil adhesion and straw winding. For the harder soil of soil property, like hardened soil, current rotary cultivator need be with changing to the gear that the speed of traveling is slow at the during operation, also need slow the rotation speed of rotary cultivator moreover, but because rotary blade cuts the soil angle still very big, not only difficult cutting into the soil, the soil piece of cutting is great, cuts the soil shallowly, and rotary tillage effect is poor, can harm the rotary blade moreover, influences rotary blade life-span.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: for the harder soil of soil property, like hardened soil, current rotary cultivator need be with changing to the gear that the speed of traveling is slow at the during operation, also need slow the rotation speed of rotary cultivator moreover, but because rotary blade cuts the soil angle still very big, not only difficult cutting into the soil, the soil piece of cutting is great, cuts the soil shallowly, and rotary tillage effect is poor, can harm the rotary blade moreover, influences rotary blade life-span.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a high-efficient rotary cultivator with adjustable, its includes rotary tillage subassembly, rotary tillage subassembly includes backup pad, rotation pipe, blade holder and rotary blade, the rotation pipe both ends rotate the connection backup pad, are provided with the movable groove on the rotation pipe, are provided with the mounting hole on the movable groove, have seted up the spacing groove on the movable groove, spacing inslot wall sliding connection stopper, stopper fixed connection spacing axle, fixed connection installation axle on the blade holder, installation axle rotation connection mounting hole, have seted up the mounting groove on the blade holder, spacing axle of mounting groove inner wall sliding connection.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: the rotary pipes on two sides of the limiting groove are provided with slots, the limiting groove is communicated with the slots, the two sides of the limiting block are fixedly connected with the inserting blocks, and the inserting blocks are slidably connected with the inner walls of the slots.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: the rotary tillage assembly further comprises a driving piece, the driving piece is arranged on the inner wall of the rotary tillage tube, the driving piece comprises a movable tube, a first piston head and a second piston head, the outer wall of the movable tube is fixedly connected with a limiting block, the two ends of the movable tube are respectively and fixedly connected with the first piston head and the second piston head, and the first piston head and the second piston head are connected with the inner wall of the rotary tillage tube in a sliding mode.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: the control assembly comprises a control cylinder, a partition plate, a third piston head, a first connecting pipe and a second connecting pipe, wherein the partition plate is fixedly connected to the inner wall of the control cylinder, the inner wall of the control cylinder is slidably connected with the third piston head, the control cylinder is respectively connected with one ends of the first connecting pipe and the second connecting pipe, and the other ends of the first connecting pipe and the second connecting pipe are connected with a rotating pipe.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: the control assembly further comprises a driving piece, the driving piece comprises a connecting rod, a movable plate, an internal thread pipe and a screw rod, one end of the connecting rod is fixedly connected with a third piston head, the connecting rod penetrates through the partition plate, the other end of the connecting rod is fixedly connected with one side of the movable plate, the movable plate is slidably connected with the inner wall of the control cylinder, the other side of the movable plate is fixedly connected with the internal thread pipe, and the internal thread pipe is in threaded connection with one end of the screw rod.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: the control assembly further comprises locking pieces, the two groups of locking pieces are respectively a first locking piece and a second locking piece, the first locking piece and the second locking piece are identical in structure, the first locking piece and the second locking piece respectively comprise an outer cylinder, an inner rod, a movable ring and a spring, the outer walls of the two outer cylinders are respectively fixedly connected with a first piston head and a second piston head, the movable ring is fixedly connected with the inner rod, the outer wall of the movable ring is in sliding connection with the inner wall of the outer cylinder, one end of the movable ring is fixedly connected with one end of the spring, the other end of the spring is fixedly connected with the inner end wall of the outer cylinder, an opening is formed in the outer cylinder, and a first locking groove and a second locking groove are formed in the inner wall of the rotating tube, corresponding to the inner rod on the first locking piece and the second locking piece.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: still include drive assembly, drive assembly includes drive tube, first bevel gear, second bevel gear, third bevel gear and drive shaft, drive shaft fixed connection third bevel gear, third bevel gear meshing connection second bevel gear or third bevel gear, second bevel gear and third bevel gear fixed connection drive tube, inside the drive tube slip insert control cylinder, the screw rod is kept away from the internal thread pipe and is provided with the square pole, square pole sliding connection drive tube.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: still include control assembly, control assembly includes telescopic link, fixed block, solid fixed ring and fixed plate, fixed plate fixed connection control section of thick bamboo inner wall, the lead screw passes the fixed plate, fixed plate fixed connection telescopic link one end, telescopic link other end fixed connection fixed block is provided with the draw-in groove on the fixed block, draw-in groove inner wall sliding connection solid fixed ring, solid fixed ring inner wall fixed connection drive tube.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: the control assembly further comprises a sealing cylinder, a fourth piston head, a third connecting pipe and a connecting pipe, wherein the inner wall of the sealing cylinder is connected with the fourth piston head in a sliding mode, the sealing cylinder is fixedly connected with one end of the third connecting pipe, the other end of the third connecting pipe is fixedly connected with a telescopic rod, the fourth piston head is fixedly connected with one end of the connecting pipe, and the connecting pipe penetrates through the sealing cylinder.

As a preferable scheme of the adjustable high-efficiency rotary cultivator, the invention comprises the following steps: the connecting pipe sliding connection connecting rod one end, the collar is connected to the connecting rod other end, be provided with first through-hole on the connecting pipe, be equipped with the second through-hole on the connecting rod to correspond first through-hole and second through-hole and be provided with the bolt.

The invention has the beneficial effects that: according to the rotary tillage device, when the rotary tillage is performed on hard soil such as hardened soil, the limiting shaft is controlled to slide in the direction of approaching the mounting shaft on the inner wall of the mounting groove, the cutter holder drives the rotary blade to move, at the moment, the soil cutting angle of the rotary blade is reduced, the rotary blade is easier to cut into the soil, the soil is deeper, the rotary tillage effect is better, the included angle between the rotary blade and the soil is smaller, the stress of the rotary blade body is also small, deformation or fracture of the rotary blade is avoided, and damage to the rotary blade is reduced. And the rotary tillage efficiency is improved without slowing down the rotation speed of the rotary tillage blade.

Drawings

Fig. 1 is a schematic diagram of an overall structure in an embodiment of the present disclosure.

Fig. 2 is a cross-sectional view of a rotating tube in an embodiment of the present disclosure.

Fig. 3 is a cross-sectional view of a socket in an embodiment of the present disclosure.

Fig. 4 is a cross-sectional view of a rotating tube in an embodiment of the present disclosure.

Fig. 5 is a diagram of the control cylinder and the internal structure thereof in the embodiment of the present disclosure.

Fig. 6 is an enlarged schematic view at a in fig. 5 in an embodiment of the present disclosure.

Fig. 7 is a cross-sectional view of a control cartridge in an embodiment of the present disclosure.

Fig. 8 is a cross-sectional view of an outer barrel in an embodiment of the present disclosure.

Fig. 9 is a schematic structural diagram of a control component in an embodiment of the disclosure.

Fig. 10 is an enlarged schematic view at B in fig. 9 in an embodiment of the disclosure.

Reference numerals: rotary tillage assembly 100, support plate 101, rotary tube 102, movable slot 102a, movable mounting hole 102b, limit slot 102c, slot 102c-1, limit block 102d, insert block 102d-1, limit shaft 102e, first lock slot 102f, second lock slot 102g, tool holder 103, mounting shaft 103a, mounting slot 103b, rotary blade 104, driving member 105, movable tube 105a, first piston head 105b, second piston head 105c, control assembly 200, control cylinder 201, spacer 202, third piston head 203, first connecting tube 204, second connecting tube 205, driving member 206, connecting rod 206a, movable plate 206b, internally threaded tube 206c, lead screw 206d, square rod 206d-1, locking member 207, first locking member 207a, second locking member 207b, outer cylinder 207c, opening 207c-1, inner rod 207d, ring 207e, spring 207f, driving assembly 300, driving tube 301, first bevel gear 302, second bevel gear 303, third bevel gear 304, driving shaft 305, control assembly 400, control clamp block 402a, fixed ring 408, fourth connecting tube 408, fixed ring 408, movable plate 408a, fixed ring 408, fourth connecting tube 408, fixed ring 408a, fixed ring 408, plug 408a, fixed ring 408, etc.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Example 1

Referring to fig. 1 and 2, this embodiment provides an adjustable high-efficiency rotary cultivator, including rotary tillage subassembly 100, rotary tillage subassembly 100 includes backup pad 101, rotation pipe 102, blade holder 103 and rotary blade 104, rotation pipe 102 both ends rotate and connect backup pad 101, are provided with movable groove 102a on the rotation pipe 102, are provided with mounting hole 102b on the movable groove 102a, have offered spacing groove 102c on the movable groove 102a, spacing groove 102c inner wall sliding connection stopper 102d, stopper 102d fixed connection spacing axle 102e, fixed connection installation axle 103a on the blade holder 103, installation hole 102b is connected in the rotation of installation axle 103a, has offered mounting groove 103b on the blade holder 103, spacing axle 102e of mounting groove 103b inner wall sliding connection.

In this embodiment, the support plate 101 is preferably capable of supporting the rotating tube 102. The rotation tube 102 is preferably coupled to the output shaft of the tractor's engine via a connecting shaft and universal joint to provide a source of power for the rotation of the rotation tube 102. The surface of the movable groove 102a is a plane, so that the tool holder 103 can move conveniently. The cutter holder 103 and the rotary blade 104 are annularly arranged on the rotary pipe 102 in a surrounding mode, a plurality of groups are arranged, and the cutter holder 103 and the rotary blade 104 can be driven to rotate when the rotary pipe 102 rotates so as to rotary tillage the soil. The mounting shaft 103a is rotatable inside the mounting hole 102 b. When the inner wall of the mounting groove 103b slides, the limiting shaft 102e can drive the cutter holder 103 to rotate around the mounting shaft 103a, the cutter holder 103 drives the rotary blade 104 to move, and the angle between the cutter holder 103 and the rotary blade 104 is adjusted. When the soil with harder soil is used for rotary tillage, if hardened soil is used for rotary tillage, the control limiting shaft 102e slides in the direction of the inner wall of the mounting groove 103b, the cutter holder 103 drives the rotary blade 104 to move, at the moment, the soil cutting angle of the rotary blade 104 is reduced, the rotary blade is easier to cut into the soil, the soil is deeper, the rotary tillage effect is better, the included angle between the rotary blade 104 and the soil is smaller, the stress of the rotary blade 104 body is also small, deformation or fracture of the rotary blade 104 is avoided, and damage to the rotary blade 104 is reduced. And the rotary tillage efficiency is improved without the need of slowing down the rotation speed of the rotary tillage blade 104.

Example 2

Referring to fig. 1 to 10, this embodiment is based on the previous embodiment, and differs from the previous embodiment in that.

Referring to fig. 3, the rotating pipes 102 on two sides of the limiting groove 102c are provided with slots 102c-1, the limiting groove 102c is communicated with the slots 102c-1, two sides of the limiting block 102d are fixedly connected with the inserting blocks 102d-1, and the inserting blocks 102d-1 are slidably connected with the inner walls of the slots 102 c-1.

In this embodiment, preferably, when the limiting block 102d slides on the inner wall of the limiting groove 102c, the insert block 102d-1 can be driven to slide on the inner wall of the slot 102c-1, which is favorable for improving the moving stability of the limiting block 102d, and meanwhile, preventing soil from entering the rotating tube 102 from the position of the limiting groove 102 c.

Referring to fig. 4, the rotary tillage assembly 100 further includes a driving member 105, the driving member 105 is disposed on an inner wall of the rotary tillage tube 102, the driving member 105 includes a movable tube 105a, a first piston head 105b and a second piston head 105c, an outer wall of the movable tube 105a is fixedly connected with a limiting block 102d, two ends of the movable tube 105a are respectively and fixedly connected with the first piston head 105b and the second piston head 105c, and the first piston head 105b and the second piston head 105c are slidably connected with the inner wall of the rotary tillage tube 102.

In this embodiment, the driving member 105 is preferably used to drive the limiting block 102d to slide on the inner wall of the limiting groove 102 c. Pushing the first piston head 105b or the second piston head 105c can drive the movable tube 105a to move, and the movable tube 105a can drive the limiting block 102d to slide on the inner wall of the limiting groove 102 c.

Referring to fig. 5, the control assembly 200 further comprises a control cylinder 201, a partition 202, a third piston head 203, a first connecting pipe 204 and a second connecting pipe 205, wherein the partition 202 is fixedly connected to the inner wall of the control cylinder 201, the third piston head 203 is slidingly connected to the inner wall of the control cylinder 201, one end of the first connecting pipe 204 and one end of the second connecting pipe 205 are respectively connected to the control cylinder 201, and the other end of the first connecting pipe 204 and the other end of the second connecting pipe 205 are connected to the rotating pipe 102.

In this embodiment, the outer wall of the control cylinder 201 is preferably fixedly connected to the support plate 101. The space inside the control cylinder 201 is separated by the partition plate 202, in fig. 5, hydraulic oil is filled on the right side of the partition plate 202, when the third piston head 203 moves to the left side in fig. 5, the hydraulic oil is pressed into the first connecting pipe 204, hydraulic oil in the first connecting pipe 204 enters the rotating pipe 102 on the left side in fig. 4, the first piston head 105b is pushed to move to the right side in fig. 4, at the moment, the limiting shaft 102e slides in the direction of being close to the mounting shaft 103a on the inner wall of the mounting groove 103b, the cutter holder 103 drives the rotary blade 104 to move, at the moment, the soil cutting angle of the rotary blade 104 is reduced, the soil is cut into the soil more easily, the soil cutting effect is better, the included angle between the rotary blade 104 and the soil is smaller, the stress of the rotary blade 104 body is also small, deformation or fracture of the rotary blade 104 is avoided, and damage to the rotary blade 104 is reduced. And the rotary tillage efficiency is improved without the need of slowing down the rotation speed of the rotary tillage blade 104.

Further, when the third piston head 203 moves to the right in fig. 5, hydraulic oil is pressed into the second connecting pipe 205, the hydraulic oil in the second connecting pipe 205 enters the rotating pipe 102 on the right in fig. 4, so as to push the second piston head 105c to move to the left in fig. 4, at this time, the limiting shaft 102e slides in the direction away from the mounting shaft 103a on the inner wall of the mounting groove 103b, the cutter holder 103 drives the rotary blade 104 to move, at this time, the soil cutting angle of the rotary blade 104 becomes large, and the rotary tillage is suitable for carrying out rotary tillage on soft soil.

Referring to fig. 5, the control assembly 200 further includes a driving member 206, where the driving member 206 includes a connecting rod 206a, a movable plate 206b, an internal threaded tube 206c, and a screw rod 206d, one end of the connecting rod 206a is fixedly connected to the third piston head 203, the connecting rod 206a passes through the partition 202, the other end of the connecting rod 206a is fixedly connected to one side of the movable plate 206b, the movable plate 206b is slidably connected to an inner wall of the control cylinder 201, the other side of the movable plate 206b is fixedly connected to the internal threaded tube 206c, and the internal threaded tube 206c is screwed to one end of the screw rod 206 d.

Preferably, in this embodiment, the driving member 206 is configured to drive the third piston head 203 to slide on the inner wall of the control cylinder 201. The movable plate 206b is slidably connected to the inner wall of the control cylinder 201, and the internally threaded tube 206c is fixedly connected to the movable plate 206b, so that relative rotation between the internally threaded tube 206c and the inner wall of the control cylinder 201 is prevented. The connecting rod 206a slides through the spacer 202. When the screw rod 206d rotates in the forward direction, the internal thread tube 206c and the movable plate 206b are pushed to move to the right in fig. 5 under the action of the threads, and the movable plate 206b pushes the third piston head 203 to move to the right in fig. 5 through the connecting rod 206 a; when the screw rod 206d rotates in the opposite direction, the internal thread tube 206c and the movable plate 206b are driven to move to the left in fig. 5 by the threads, and the movable plate 206b pushes the third piston head 203 to move to the left in fig. 5 through the connecting rod 206 a.

Referring to fig. 4, 7 and 8, the control assembly 200 further includes two sets of locking members 207, wherein the locking members 207 are provided with a first locking member 207a and a second locking member 207b, the first locking member 207a and the second locking member 207b have the same structure, the first locking member 207a and the second locking member 207b respectively include an outer cylinder 207c, an inner rod 207d, a movable ring 207e and a spring 207f, the outer walls of the two outer cylinders 207c are respectively fixedly connected with the first piston head 105b and the second piston head 105c, the inner rod 207d is fixedly connected with the movable ring 207e, the outer wall of the movable ring 207e is slidably connected with the inner wall of the outer cylinder 207c, the movable ring 207e is fixedly connected with one end of the spring 207f, the other end of the spring 207f is fixedly connected with the inner wall of the outer cylinder 207c, the outer cylinder 207c is provided with an opening 207c-1, and the inner wall of the rotating tube 102 corresponds to the inner rod 207d of the first locking member 207a and the second locking member 207b, the first locking groove 102f and the second locking groove 102g are provided.

In this embodiment, preferably, the spring 207f pulls the movable ring 207e and the inner rod 207d downward in fig. 8 under the tension of the spring 207 f. When the lower portion of the inner rod 207d is moved to the position of the first locking groove 102f or the second locking groove 102g, the tip of the inner rod 207d is inserted into the first locking groove 102f or the second locking groove 102g, locking the positions of the first piston head 105b, the second piston head 105c and the movable tube 105 a. When the hydraulic oil enters the inside of the outer cylinder 207c from the opening 207c-1, the movable ring 207e and the inner rod 207d are moved upward in fig. 8 by the pushing of the hydraulic oil, and the tip of the inner rod 207d is pulled out of the first locking groove 102f or the second locking groove 102g, releasing the locking of the positions of the first piston head 105b, the second piston head 105c and the movable tube 105 a.

Referring to fig. 6, the driving assembly 300 further comprises a driving tube 301, a first bevel gear 302, a second bevel gear 303, a third bevel gear 304 and a driving shaft 305, wherein the driving shaft 305 is fixedly connected with the third bevel gear 304, the third bevel gear 304 is in meshed connection with the second bevel gear 303 or the third bevel gear 304, the second bevel gear 303 and the third bevel gear 304 are fixedly connected with the driving tube 301, the driving tube 301 is slidably inserted into the control cylinder 201, the screw rod 206d is provided with a square rod 206d-1 far away from the internal thread tube 206c, and the square rod 206d-1 is slidably connected with the driving tube 301.

Preferably, in this embodiment, the end of the drive shaft 305 remote from the third bevel gear 304 is preferably coupled to a tractor engine to provide a source of power. The driving tube 301 passes through the control cylinder 201, and the driving tube 301 can slide on the square bar 206d-1 while rotating the square bar 206 d-1. When the driving shaft 305 rotates, the first bevel gear 302 can be driven to rotate, and when the first bevel gear 302 is meshed with the second bevel gear 303, the third bevel gear 304 is disengaged from the first bevel gear 302, the first bevel gear 302 drives the second bevel gear 303 to rotate forward, the second bevel gear 303 drives the driving tube 301 to rotate forward, and the driving tube 301 drives the screw rod 206d to rotate forward through the square rod 206 d-1. When the driving shaft 305 rotates, the first bevel gear 302 can be driven to rotate, and when the first bevel gear 302 is disengaged from the second bevel gear 303, the first bevel gear 302 is engaged with the third bevel gear 304, the first bevel gear 302 drives the third bevel gear 304 to reversely rotate, the third bevel gear 304 drives the driving tube 301 to reversely rotate, and the driving tube 301 drives the screw rod 206d to reversely rotate through the square rod 206 d-1.

Referring to fig. 6, the control assembly 400 further comprises a control assembly 400, the control assembly 400 comprises a telescopic rod 401, a fixed block 402, a fixed ring 403 and a fixed plate 404, the fixed plate 404 is fixedly connected with the inner wall of the control cylinder 201, the screw rod 206d passes through the fixed plate 404, the fixed plate 404 is fixedly connected with one end of the telescopic rod 401, the other end of the telescopic rod 401 is fixedly connected with the fixed block 402, a clamping groove 402a is formed in the fixed block 402, the inner wall of the clamping groove 402a is slidably connected with the fixed ring 403, and the inner wall of the fixed ring 403 is fixedly connected with the driving tube 301.

In this embodiment, preferably, the telescopic rod 401 can drive the fixed block 402 to move during telescopic movement, and the fixed block 402 can drive the fixed ring 403 to move, and the fixed ring 403 drives the driving tube 301 to move. The fixing ring 403 can rotate on the inner wall of the clamping groove 402a, so that the fixing block 402 can prevent the fixing ring 403 from moving when driving the fixing ring 403 to move. The fixing plate 404 can support and fix the telescopic rod 401.

Referring to fig. 9, the control assembly 400 further includes a sealing cylinder 405, a fourth piston head 406, a third connecting pipe 407, and a connecting pipe 408, wherein the inner wall of the sealing cylinder 405 is slidably connected with the fourth piston head 406, the sealing cylinder 405 is fixedly connected with one end of the third connecting pipe 407, the other end of the third connecting pipe 407 is fixedly connected with the telescopic rod 401, the fourth piston head 406 is fixedly connected with one end of the connecting pipe 408, and the connecting pipe 408 passes through the sealing cylinder 405.

In this embodiment, the connecting tube 408 is preferably a square steel tube. The radial dimension of the sealing cylinder 405 is far larger than that of the telescopic rod 401, so that the telescopic rod 401 can be controlled to be telescopic by only needing small force to drive the connecting tube 408 to move a small stroke. The connecting tube 408 can move the fourth piston head 406. When the connecting pipe 408 pushes the fourth piston head 406 to move to the left in fig. 9, hydraulic oil inside the sealing cylinder 405 is compressed, and the hydraulic oil enters the expansion link 401 through the third connecting pipe 407, at which time the expansion link 401 is extended. When the connecting pipe 408 drives the fourth piston head 406 to move to the right in fig. 9, hydraulic oil inside the expansion link 401 enters the inside of the sealing cylinder 405 through the third connecting pipe 407, and at this time the expansion link 401 contracts.

Referring to fig. 9, the connecting tube 408 is slidably connected to one end of the connecting rod 409, the other end of the connecting rod 409 is connected to the mounting ring 410, a first through hole 408a is provided on the connecting tube 408, a second through hole 409a is provided on the connecting rod 409, and a plug 411 is provided corresponding to the first through hole 408a and the second through hole 409 a.

In this embodiment, preferably, the mounting ring 410 is divided into two half rings, and the mounting ring 410 is provided with fixing lugs thereon, so that the mounting ring 410 is conveniently fixed on the gear lever of the tractor, and when the gear lever of the tractor is operated to span gears, the gear lever can drive the connecting tube 408 to move through the mounting ring 410 and the connecting rod 409. When the plug 411 is inserted into the first through hole 408a and the second through hole 409a, the connecting rod 409 and the connecting tube 408 form a whole, and at this time, the connecting rod 409 can drive the connecting tube 408 to move. When the plug 411 is removed from the first through hole 408a and the second through hole 409a, the connecting rod 409 can not drive the connecting tube 408 to move, so that the control is more various and convenient.

When in use, when the rotary tillage is carried out on the soil with harder soil, such as hardened soil, the bolt 411 is inserted into the first through hole 408a and the second through hole 409a, the connecting rod 409 and the connecting pipe 408 form a whole, when the gear lever is shifted to a low speed gear, the connecting rod 409 can drive the connecting pipe 408 to move leftwards in fig. 9, the fourth piston head compresses hydraulic oil in the sealing cylinder 405, the hydraulic oil enters the telescopic rod 401 through the third connecting pipe 407, the telescopic rod 401 stretches (the telescopic rod 401 moves to the position in fig. 6), the telescopic rod 401 drives the fixed block 402 to move, the fixed block 402 drives the fixed ring 403 to move, the fixed ring 403 drives the driving pipe 301 to move, the first bevel gear 302 is meshed with the third bevel gear 304, the first bevel gear 302 is out of meshing with the second bevel gear 303, the driving shaft 305 rotates, the first bevel gear 302 is driven to rotate, the first bevel gear 302 drives the third bevel gear 304 to reversely rotate, the third bevel gear 304 drives the driving tube 301 to reversely rotate, the driving tube 301 drives the screw rod 206d to reversely rotate through the square rod 206d-1, when the screw rod 206d reversely rotates, the internal thread tube 206c and the movable plate 206b are driven to move to the left side in fig. 5 under the action of threads, the movable plate 206b drives the third piston head 203 to move to the left side in fig. 5 through the connecting rod 206a, the third piston head presses hydraulic oil into the first connecting tube 204, hydraulic oil in the first connecting tube 204 enters the rotating tube 102 at the left side in fig. 4, hydraulic oil enters the outer cylinder 207c from the opening 207c-1 on the first locking piece 207a, the movable ring 207e and the internal rod 207d move to the upper side in fig. 8 under the pushing of hydraulic oil, the end of the internal rod 207d is pulled out from the first locking groove 102f, and the first locking groove 105b is released, locking of the second piston head 105c and the movable tube 105a position.

Then hydraulic oil promotes first piston head 105b to remove to the right side in fig. 4, and blade holder 103 drives rotary blade 104 and removes, and the cutting angle of rotary blade 104 diminishes this moment, cuts into the soil more easily, cuts soil deeper, and the rotary tillage effect is better, and the contained angle between rotary blade 104 and the soil is littleer moreover, and the atress of rotary blade 104 body is also little, avoids rotary blade 104 to appear warping or fracture, reduces the damage to rotary blade 104. The rotary tillage efficiency is improved without slowing down the rotation speed of the rotary tillage blade 104; meanwhile, until the lower part of the inner rod 207d on the second locking piece 207b moves to the position of the second locking groove 102g, the end head of the inner rod 207d is inserted into the second locking groove 102g to lock the positions of the first piston head 105b, the second piston head 105c and the movable pipe 105a, so that the angle of the rotary blade 104 is prevented from being changed due to the reaction force of soil blocks during soil cutting. The angle of the rotary blade 104 can be synchronously adjusted by utilizing the operation of the gear shifting without additional operation on the angle of the rotary blade 104, and the use and the control are more convenient.

When the rotary tillage is carried out on loose soil, the bolt 411 is inserted into the first through hole 408a and the second through hole 409a, the connecting rod 409 and the connecting pipe 408 form a whole, when the gear lever is shifted to a high speed gear, the connecting rod 409 can drive the connecting pipe 408 to move to the right side in fig. 9, the hydraulic oil in the telescopic rod 401 enters the sealing cylinder 405 through the third connecting pipe 407, the telescopic rod 401 is contracted, the telescopic rod 401 drives the fixed block 402 to move, the fixed block 402 drives the fixed ring 403 to move, the fixed ring 403 drives the driving pipe 301 to move, when the first bevel gear 302 is meshed with the second bevel gear 303, the third bevel gear 304 is disengaged from the first bevel gear 302, the first bevel gear 302 drives the second bevel gear 303 to rotate positively, the second bevel gear 303 drives the driving pipe 301 to rotate positively, the driving pipe 301 drives the screw 206d to rotate positively through the square rod 206d-1, and the internal thread pipe 206c and the movable plate 206b are pushed to move to the right side in fig. 5 under the action of the screw thread when the screw 206d rotates positively, and the movable plate 206b is pushed to move to the right side in fig. 5 through the third connecting rod 203; when the third piston head 203 moves to the right in fig. 5, hydraulic oil is pressed into the second connecting pipe 205, hydraulic oil in the second connecting pipe 205 enters the rotary pipe 102 on the right in fig. 4, hydraulic oil enters the inside of the outer cylinder 207c from the opening 207c-1 on the second locking member 207b, the movable ring 207e and the inner rod 207d move upward in fig. 8 under the pushing of hydraulic oil, the end of the inner rod 207d is pulled out from the second locking groove 102g, and the locking of the positions of the first piston head 105b, the second piston head 105c and the movable pipe 105a is released.

Then hydraulic oil pushes the second piston head 105c to move to the left in fig. 4, at this time, the limiting shaft 102e slides in the direction away from the mounting shaft 103a on the inner wall of the mounting groove 103b, the cutter holder 103 drives the rotary blade 104 to move, at this time, the cutting angle of the rotary blade 104 becomes large, and the rotary tillage is suitable for being performed on soft soil. Meanwhile, until the lower part of the inner rod 207d on the first locking piece 207a moves to the position of the first locking groove 102f, the end head of the inner rod 207d is inserted into the first locking groove 102f to lock the positions of the first piston head 105b, the second piston head 105c and the movable pipe 105a, so that the angle of the rotary blade 104 is prevented from being changed due to the reaction force of soil blocks when soil is cut.

Claims (10)

1. An adjustable high-efficient rotary cultivator which characterized in that: including rotary tillage subassembly (100), rotary tillage subassembly (100) include backup pad (101), rotate tub (102), blade holder (103) and rotary blade (104), rotate tub (102) both ends and rotate connecting backup pad (101), be provided with movable groove (102 a) on rotating tub (102), be provided with mounting hole (102 b) on movable groove (102 a), offered spacing groove (102 c) on movable groove (102 a), spacing groove (102 c) inner wall sliding connection stopper (102 d), stopper (102 d) fixed connection spacing axle (102 e), fixed connection installation axle (103 a) on blade holder (103), installation hole (102 b) are rotated to installation axle (103 a), have offered mounting groove (103 b) on blade holder (103), spacing axle (102 e) of mounting groove (103 b) inner wall sliding connection.

2. The adjustable high efficiency rotary cultivator of claim 1, wherein: the rotating pipes (102) on two sides of the limiting groove (102 c) are provided with slots (102 c-1), the limiting groove (102 c) is communicated with the slots (102 c-1), two sides of the limiting block (102 d) are fixedly connected with the inserting blocks (102 d-1), and the inserting blocks (102 d-1) are slidably connected with the inner walls of the slots (102 c-1).

3. The adjustable high efficiency rotary cultivator of claim 1, wherein: the rotary tillage assembly (100) further comprises a driving piece (105), the driving piece (105) is arranged on the inner wall of the rotary tillage tube (102), the driving piece (105) comprises a movable tube (105 a), a first piston head (105 b) and a second piston head (105 c), the outer wall of the movable tube (105 a) is fixedly connected with a limiting block (102 d), two ends of the movable tube (105 a) are respectively and fixedly connected with the first piston head (105 b) and the second piston head (105 c), and the first piston head (105 b) and the second piston head (105 c) are in sliding connection with the inner wall of the rotary tillage tube (102).

4. The adjustable high efficiency rotary cultivator of claim 1, wherein: still include control assembly (200), control assembly (200) include control section of thick bamboo (201), baffle (202), third piston head (203), first connecting pipe (204) and second connecting pipe (205), control section of thick bamboo (201) inner wall fixed connection baffle (202), control section of thick bamboo (201) inner wall sliding connection third piston head (203), first connecting pipe (204) and second connecting pipe (205) one end are connected respectively to control section of thick bamboo (201), and first connecting pipe (204) and second connecting pipe (205) other end are connected rotation pipe (102).

5. The adjustable high efficiency rotary cultivator of claim 4, wherein: the control assembly (200) further comprises a driving piece (206), the driving piece (206) comprises a connecting rod (206 a), a movable plate (206 b), an internal thread pipe (206 c) and a screw rod (206 d), one end of the connecting rod (206 a) is fixedly connected with a third piston head (203), the connecting rod (206 a) penetrates through the partition plate (202), the other end of the connecting rod (206 a) is fixedly connected with one side of the movable plate (206 b), the movable plate (206 b) is slidably connected with the inner wall of the control cylinder (201), the other side of the movable plate (206 b) is fixedly connected with the internal thread pipe (206 c), and the internal thread pipe (206 c) is in threaded connection with one end of the screw rod (206 d).

6. The adjustable high efficiency rotary cultivator of claim 5, wherein: the control assembly (200) further comprises two groups of locking pieces (207), wherein the two groups of locking pieces (207) are respectively a first locking piece (207 a) and a second locking piece (207 b), the first locking piece (207 a) and the second locking piece (207 b) are identical in structure, the first locking piece (207 a) and the second locking piece (207 b) respectively comprise an outer barrel (207 c), an inner rod (207 d), a movable ring (207 e) and a spring (207 f), the outer walls of the two outer barrels (207 c) are respectively fixedly connected with a first piston head (105 b) and a second piston head (105 c), the inner rod (207 d) is fixedly connected with the movable ring (207 e), the outer wall of the movable ring (207 e) is in sliding connection with the inner wall of the outer barrel (207 c), one end of the movable ring (207 e) is fixedly connected with one end of the spring (207 f), the other end wall of the spring (207 c) is fixedly connected with the inner end wall of the outer barrel (207 c), an opening (207 c-1) is formed in the outer barrel (207 c), and the inner wall of the rotating pipe (102) is correspondingly provided with a first locking groove (102 g) and a second locking groove (102 g) in the inner rod (207 d) of the second locking piece (207 b).

7. The adjustable high efficiency rotary cultivator of claim 6, wherein: still include drive assembly (300), drive assembly (300) include drive tube (301), first bevel gear (302), second bevel gear (303), third bevel gear (304) and drive shaft (305), drive shaft (305) fixed connection third bevel gear (304), third bevel gear (304) meshing connect second bevel gear (303) or third bevel gear (304), second bevel gear (303) and third bevel gear (304) fixed connection drive tube (301), drive tube (301) slip insert control tube (201) inside, lead screw (206 d) are kept away from internal thread pipe (206 c) and are provided with square pole (206 d-1), square pole (206 d-1) sliding connection drive tube (301).

8. The adjustable high efficiency rotary cultivator of claim 7, wherein: still include control assembly (400), control assembly (400) include telescopic link (401), fixed block (402), solid fixed ring (403) and fixed plate (404), fixed plate (404) fixed connection control section of thick bamboo (201) inner wall, lead screw (206 d) pass fixed plate (404), fixed plate (404) fixed connection telescopic link (401) one end, telescopic link (401) other end fixed connection fixed block (402), be provided with draw-in groove (402 a) on fixed block (402), draw-in groove (402 a) inner wall sliding connection solid fixed ring (403), solid fixed ring (403) inner wall fixed connection drive tube (301).

9. The adjustable high efficiency rotary cultivator of claim 8, wherein: the control assembly (400) further comprises a sealing cylinder (405), a fourth piston head (406), a third connecting pipe (407) and a connecting pipe (408), wherein the inner wall of the sealing cylinder (405) is connected with the fourth piston head (406) in a sliding mode, the sealing cylinder (405) is fixedly connected with one end of the third connecting pipe (407), the other end of the third connecting pipe (407) is fixedly connected with a telescopic rod (401), the fourth piston head (406) is fixedly connected with one end of the connecting pipe (408), and the connecting pipe (408) penetrates through the sealing cylinder (405).

10. The adjustable high efficiency rotary cultivator of claim 9, wherein: connecting pipe (408) sliding connection connecting rod (409) one end, connecting rod (409) other end connect collar (410), be provided with first through-hole (408 a) on connecting pipe (408), be equipped with second through-hole (409 a) on connecting rod (409) to be provided with bolt (411) corresponding first through-hole (408 a) and second through-hole (409 a).

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