CN107182300A - Rake batch (-type) loosenning tiller - Google Patents

Abstract

The invention discloses a rake-type intermittent scarifier, which comprises a driving device arranged on a frame, a ground wheel system is arranged at the bottom of the frame, and the driving device is respectively connected to an intermittent ground wheel driving mechanism through a follower. , Intermittent loose soil mechanism and intermittent loose soil tooth swing mechanism. In the present invention, under the combined action of the intermittent loosening mechanism, the intermittent loosening tooth swing mechanism and the guiding mechanism of the loosening tooth, the loosening tooth can realize vertical and deflection movements, thereby realizing the functions of digging into the soil, deflecting, and loosening and stirring the soil; The upper arm of the loosening tooth of the present invention is driven intermittently by the arc-shaped sliding tooth matched with the fan-shaped pendulum block to realize the intermittent back-and-forth driving of the extreme point position of the loosening tooth, and realizes fixed-point deflection and fixed-point reset of the loosening tooth.

Description

Rake intermittent scarifier

technical field

The invention relates to a ripper, in particular to a rake-type intermittent ripper.

Background technique

Most of the soil loosening operations in the field use plowing or rotary tillage and then use a harrow to loosen the soil. This method has good adaptability for field operations, but for small-space operations in greenhouses or inter-cultivation and loosening operations between rows of plants, traditional The operating machine body is large in size, and it is difficult to meet the requirements of loose soil operation.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and provide a shovel-type gap loosening operation that can simulate manual hoeing, and has a compact structure, flexible operation, and good field adaptability, which can be used in small spaces and plant rows. Rake-type intermittent scarifier for intermittent loosening operations.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a rake-type intermittent scarifier, including a driving device arranged on a frame, a ground wheel system is arranged at the bottom of the frame, and the driving device passes through a driven The parts are respectively connected to the intermittent ground wheel driving mechanism, the intermittent loosening mechanism and the intermittent loosening tooth swing mechanism; wherein,

The intermittent ground wheel driving mechanism includes a cam installed coaxially with the follower, the cam interferes with one end of the push tooth, the middle part of the push tooth is fixed on the frame through a sliding sleeve, and the push tooth can move axially on the sliding sleeve. Sliding, the push tooth between the sliding sleeve and the cam is provided with a compression spring, and the other end of the push tooth is intermittently conflicted with the ratchet, and the ratchet is installed coaxially with the driving ground wheel of the ground wheel system;

The intermittent loosening mechanism includes a driving lever coaxially installed with the driven part and an intermeshing loosening driving wheel and a loosening driven wheel arranged in front of the frame. The loosening driving wheel and the loosening driven wheel are respectively opposite to the driven part. The radial positioning is installed on the loosening driving wheel shaft and the loosening driven wheel shaft, and the follower shaft, the loosening driving wheel shaft and the loosening driven wheel shaft are installed on the frame in the shape of an isosceles triangle in the radial direction, and the follower The shaft is located on the vertical plane between the midpoint of the vertical distance between the loosening driven wheel shaft and the loosening driving wheel shaft; there is a first chute above the driving lever, and a movable pin shaft is installed in the first chute. The contact bearing is installed near the end of the loosening driving wheel, the third swing rod is fixedly installed on the loosening driving wheel shaft, and the second swinging rod is fixedly installed on the loosening driven wheel shaft. , intermittently connected with the second and third pendulum rods; the left and right rack drive gears are installed on the driven wheel shaft of loose soil, and the left and right rack grooves are respectively set on the racks opposite to the left and right rack drive gears. The left and right racks are respectively installed in the grooves of the right racks, and the drive gears of the left and right racks are meshed with the left and right racks respectively, and the bottoms of the left and right racks are hinged to install the scarifying teeth When the second and third pendulums are swinging, the left and right rack drive gears coaxially installed on the loosening driven wheel shaft are intermittently reciprocating positive and negative rotations, so that the left and right racks, move down;

The intermittent loosening tooth swing mechanism includes first and second crank rocker mechanisms. The front end of the first crank rocker mechanism is connected to the follower, and the rear end is hinged to a fan-shaped pendulum block. A sliding guide rail is provided, and the first and second ends of the sliding guide rail are respectively provided with a first baffle plate and a second baffle plate, and the sliding guide rail is set with an arc-shaped sliding tooth, and the arc-shaped sliding tooth is meshed with a driven sliding tooth The second crank at the front end of the second crank-rocker mechanism is installed on the shaft of the driven sliding gear, and the rear end of the second crank-rocker mechanism is fixedly connected to the loosening rack; the frame side at the front end is provided with a U-shaped guide The opening end of the U-shaped guide post is provided with a guide block, and a U-shaped guide groove is formed between the U-shaped guide post and the guide block for the upper arm fixing pin of the scarifying tooth to enter and exit. The upper arm fixing pin of the scarifying tooth is fixed on the upper arm of the scarifying tooth and the lower end of the upper arm of the scarifying tooth is hinged and fixed to the scarifying tooth frame through the fixing pin of the scarifying tooth. The rear end of the second crank rocker mechanism is provided with a scarifying tooth control pin. The second chute, the control pin of the ripper tooth is sleeved and fixed in the second chute, when the second crank rocker mechanism swings up and down to the extreme position, the end of the fixed pin of the ripper tooth upper arm enters and exits the U-shaped guide groove, When the end of the fixing pin of the upper arm of the loosening tooth slides out of the U-shaped guide groove, the second crank rocker mechanism swings up and down to realize the deflection of the loosening tooth frame.

A further improvement of the above solution is that the driving device includes a power device and a gearbox arranged on the frame, the power device is connected to the gearbox through a belt, and the gearbox is provided with a driving sprocket, and the driven member is a driven The driving sprocket is connected by a chain between the driving sprocket and the driven sprocket.

A further improvement of the above solution is that the fan-shaped pendulum block is provided with a U-shaped groove in the radial direction, and the connecting rod shaft at the rear end of the first crank-rocker mechanism is installed in the U-shaped groove and is hinged and fixed by bolts. The U-shaped groove is arranged on the symmetrical center line of the fan-shaped pendulum block. The sector angle of the sector pendulum is between 90°-180°.

A further improvement of the above solution is that the first crank rocker mechanism includes a first crank mounted on the shaft of the soil loosening driven wheel, the first crank is hinged to one end of the first connecting rod, and the other end of the first connecting rod is fixedly arranged The connecting rod shaft; the second crank and rocker mechanism includes a second crank, the second crank is hinged to the second connecting rod, and the second connecting rod is hinged to one end of the first swing rod, and the first swing rod is pivoted by the fixed shaft frame, the other end of the first fork is provided with a loosening tooth control pin.

A further improvement of the above solution is that the arc length of the arc-shaped sliding tooth is smaller than the arc length of the sliding guide rail.

A further improvement of the above solution is that the rotation radius of the contact bearing is greater than the rotation radius of the second and third swing rods.

A further improvement of the above solution is that the loosening driving wheel and the loosening driven wheel have the same number of teeth.

In the present invention, under the action of the swing mechanism of the intermittent loosening tooth, the loosening tooth can realize vertical and deflection motions, thereby realizing the functions of digging into the soil, deflecting, loosening the soil, and stirring the soil; in addition, under the action of the intermittent loosening mechanism, The left and right racks realize intermittent back-and-forth up and down fixed-distance movement; the upper arm of the loosening tooth is installed on the tooth frame of the present invention, and the upper arm realizes the limit point position of the loosening tooth under the intermittent driving action of the arc-shaped sliding tooth matched with the fan-shaped pendulum block The intermittent back-and-forth driving of the loosening teeth realizes the fixed-point deflection and fixed-point reset of the loosening teeth; the driving ground wheel of the present invention is driven by the cam to drive the pushing teeth, and under the action of the pushing teeth driving the ratchet, the intermittent rotation of the driving ground wheel is completed, and the ground wheel is matched with the unearthed movement of the loosening teeth. Fixed point during infeed and entry.

Description of drawings

Fig. 1 is the front view of the rake type intermittent scarifier of the present invention.

Fig. 2 is a side view of the left axis of the rake-type intermittent scarifier of the present invention.

Fig. 3 is a side view of the right axis of the rake-type intermittent scarifier of the present invention.

Fig. 4 is a diagram showing the deflection limit position of the loosening teeth of the rake-type intermittent scarifier of the present invention.

Fig. 5 is a structural schematic diagram of the intermittent ground wheel driving mechanism of the present invention.

Fig. 6 is a schematic diagram of the transmission structure of the intermittent loosening mechanism of the present invention.

Fig. 7 is a schematic diagram of the transmission structure of the intermittent loosening tooth oscillating mechanism of the present invention.

In the figure: 1. power unit; 2. belt; 3. gearbox; 4. frame; 5. right rack drive gear; 6. left rack; 9. The first pendulum; 10. The loosening tooth; 11. The first crank; 12. The first connecting rod; 13. The connecting rod shaft; 14. The fixed pin of the upper arm of the loosening tooth; 15. The loosening tooth frame; 16. Drive sprocket; 17. walking ground wheel; 18. driving ground wheel; 19. ratchet; 20. pushing teeth; 201 spherical convex plate; baffle plate 202; 21. sliding sleeve; ; 231. driven sprocket shaft; 24. cam; 25. loosening tooth fixed pin; 26. right rack; 27. rack groove; 28. contact bearing; 29. left rack drive gear; 30. loosening Driven wheel; 301. Soil loosening driven wheel shaft; 31. The second swing lever; 32. Soil loosening driving wheel; 321. Soil loosening driving wheel shaft; 33. Driving lever pin shaft; 34. Driving lever; 35. The third pendulum Rod; 36. Chain; 37. Guide column; 38. Guide groove; 39. Ripper tooth control pin; 40. Second connecting rod; 41. Fixed shaft; 42. Driven sliding tooth; 43. Sector pendulum block; 44 . Arc sliding tooth; 45. The second crank.

detailed description

As shown in Figures 1 to 7, an embodiment of a rake type ripper of the present invention includes a driving device arranged on the frame 4, and the driving device is respectively connected to the intermittent ground wheel driving mechanism, Intermittent loosening mechanism and intermittent loosening tooth swing mechanism. The bottom of this frame 4 is provided with the ground wheel system that is made up of walking ground wheel 17 and driving ground wheel 18, and the front end of this frame 4 is provided with loosening tooth 10, and frame 4 one side is provided with loosening tooth guide mechanism.

The driving device includes a power unit 1 and a gearbox 3, the power unit 1 is connected to the gearbox 3 via a belt 2, the gearbox 3 is provided with a driving sprocket 16, and the driving sprocket 16 is connected to the driven sprocket 23 through a chain 36.

The intermittent ground wheel drive mechanism includes a cam 24 installed coaxially with the driven sprocket 23 , and the cam 24 interferes with one end connected to the push tooth 20 . The push tooth 20 is fixed on the frame 4 through the sliding sleeve 21, and the push tooth 20 can slide axially on the sliding sleeve 21, and the push tooth 20 between the sliding sleeve 21 and the cam 24 is provided with a baffle plate 202 and a compression Spring 22, the other end of the push tooth 20 is intermittently in conflict with the ratchet 19, and the ratchet 19 is installed coaxially with the driving ground wheel 18 of the ground wheel system, so that the intermittent rotation of the driving ground wheel 18 can be realized and the driving ground can be driven. round 17. In order to make the contact between the push tooth 20 and the cam 24 smooth, the cam connection end of the push tooth 20 is provided with a spherical convex plate 201 .

This intermittent soil loosening mechanism comprises a driving lever 34 coaxially installed with the driven sprocket 23 and a loosening driving wheel 32 and a loosening driven wheel 30 which are arranged on the front of the frame 4 and are engaged with each other. Soil driven wheel 30 is installed on loose soil driving wheel shaft 321 and loose soil driven wheel shaft 301 with respect to driven sprocket wheel 23 radial positioning respectively, driven sprocket shaft 231, loose soil driving wheel shaft 321, loose soil driven wheel shaft 301 are arranged in diameter To be installed on the frame 4 in isosceles triangle shape, and driven sprocket shaft 231 is positioned at the vertical plane of loosening driven wheel shaft 301 and loosening driving wheel shaft 321 vertical distance connecting line midpoint; This driving lever 34 tops have The first chute 341, the movable pin shaft 33 is installed in the first chute 341, the contact bearing 28 is installed near the loosening driving wheel 32 on the movable pin shaft 33, the third fork 35 is fixedly installed on the loosening driving wheel shaft 321 The second fork 31 is fixedly installed on the loosening driven wheel shaft 301, and the contact bearing 28 on the movable pin shaft 33 is intermittently connected with the second and third fork 31, 35 during the rotation of the driven sprocket 23. Left and right rack drive gears 29,5 are installed on the loose soil driven wheel shaft 301, and left and right rack grooves 27 are set respectively on the relative frame 4 of left and right rack drive gears 5, and left and right rack grooves Left and right racks 6,26 are respectively installed in 27, and left and right rack drive gears 29,5 mesh with left and right racks 6,26 respectively, and the bottoms of left and right racks 6,26 pass through the loosening teeth The fixed pin shaft 25 is articulated to install the loosening gear frame 15 of the loosening tooth 10, and when the second and third swing bars 31 and 35 swing intermittently, the left and right rack drive gears coaxially installed on the loosening driven wheel shaft 301 29.5 intermittently reciprocating positive and negative rotations make the left and right racks 6,26 move up and down. In this embodiment, the rotation radius of the contact bearing 28 is greater than the rotation radius of the second and third swing rods 31 and 35, and the loosening driving wheel 32 and the loosening driven wheel 30 have the same number of teeth.

The intermittent loosening tooth oscillating mechanism includes first and second crank rocker mechanisms. The first crank rocker mechanism includes the first crank 11 installed on the loose soil driven wheel shaft 301, the first crank 11 is hinged to one end of the first connecting rod 12, and the other end of the first connecting rod 12 is fixedly provided with the connecting rod shaft 13 . The second crank rocker mechanism includes a second crank 45, the second crank 45 is hinged to the second connecting rod 40, the second connecting rod is hinged to one end of the first swing rod 9, and the middle part of the first swing rod 9 passes through the fixed shaft 41 Pivoted on the frame 4, the other end of the first swing link 9 is provided with a loosening tooth control pin 39. The rear end of the first crank-rocker mechanism is hinged to a fan-shaped pendulum block 43 pivotally arranged on the frame 4 through the connecting rod shaft 13, and a sliding guide rail 431 is arranged along the arc section of the fan-shaped pendulum block outer periphery. The sliding guide rail 431 The first baffle plate 432 and the second baffle plate 433 are respectively provided at both ends of the head and the tail, and the sliding guide rail 431 is provided with an arc-shaped sliding tooth 44, and the arc length of the arc-shaped sliding tooth 44 is less than the arc length of the sliding guide rail 431 , the arc-shaped sliding tooth 44 is engaged with the driven sliding tooth 42, the second crank 45 of the second crank-rocker mechanism is installed on the shaft of the driven sliding tooth 42, and the loosening tooth control pin of the second crank-rocker mechanism 39 are inserted and fixed in the second chute 8 of the loosening tooth upper arm 7 hinged with the loosening tooth frame 15. In order to make the swing angle of the fan-shaped pendulum block 43 adjustable, the fan-shaped pendulum block 43 is provided with a U-shaped groove 434 in the radial direction, and the connecting rod shaft 13 at the rear end of the first crank-rocker mechanism is installed in the U-shaped groove 434 and passed The bolts are hinged and fixed, and the U-shaped groove 434 is arranged at the symmetrical center line of the fan-shaped pendulum block 43 . The sector angle of the sector pendulum 43 is between 90°-180°.

The soil loosening tooth guiding mechanism comprises the U-shaped guide post 37 that is arranged on frame 4 one side, and the opening end of U-shaped guide post 37 is provided with guide block 371, and the upper arm of loose soil tooth is formed between U-shaped guide post 37 and guide block 371 and is fixed. The U-shaped guide groove 38 that pin 14 enters and exits. The upper arm fixing pin 14 of the loosening tooth is fixedly arranged on the upper part of the upper arm 7 of the loosening tooth, and the second chute 8 is arranged on the upper arm 7 of the loosening tooth, and the upper arm 7 of the loosening tooth and the tooth frame 15 are fixed by the loosening tooth The pin shaft 25 is hinged and fixed, and the loosening tooth control pin 39 at the end of the first fork 9 of the second crank-rocker mechanism is inserted and fixed in the second chute 8 . When the first fork 9 of the second crank-rocker mechanism swung up and down around the fixed shaft 41, the control pin 39 of the loosening teeth slid up and down along the second chute 8, and the upper arm fixed pin 14 of the loosening teeth The end goes in and out of the U-shaped guide groove 38, and when the end of the upper arm fixed pin 14 of the loosening teeth slides out of the U-shaped guide groove 38, the up and down swing of the first fork 9 of the second crank rocker mechanism makes the loosening teeth deflect. Swing and stir the soil; when the end of the upper arm fixing pin 14 of the loosening tooth slides into the U-shaped guide groove 38, it swings up and down on the first swing rod 9 of the second crank rocker mechanism, and the upper arm fixing pin 14 of the loosening tooth Move up and down along the U-shaped guide groove 38 to further ensure the up and down movement of the loosening teeth 10 .

During specific work: power unit 1 output power drives gearbox 3 through belt 2 to increase power deceleration and increases twist, drives chain 36 to drive driven sprocket 23 through driving sprocket 16 again, and driven sprocket 23 drives the cam 24 on the shaft and The driving rod 34, on the one hand, the cam 24 drives the push tooth 20, and the push tooth 20 is fixed on the sliding sleeve 21, and is close to the cam 24 under the action of the compression spring 22, and the push tooth 20 drives the ratchet 19, and the ratchet 19 drives the ground wheel 18 does intermittent rotation, so as to realize the intermittent movement of the ripper as a whole; on the other hand, the driving lever 34 drives the second pendulum 31 and the third pendulum intermittently when the movable pin shaft 33 of the movable installation is doing circular motion. Bar 35, the second fork 31 is coaxially connected with the loosening driven wheel 30, the left rack drive gear 29, and the right rack drive gear 5, and the third fork 35 is coaxially connected with the loosening driving wheel 32. The movable pin shaft 33 drives back and forth between the second fork 31 and the third fork 35, thereby realizing that the left rack drive gear 29 drives the left rack 6, and the right rack drive gear 5 drives the right rack 26. The right rack moves up and down in the rack groove 27, and under the combined action of the left and right racks, the loosening tooth 10 is driven into the soil downwards. In the process that loosening tooth 10 moves down, loosening tooth upper arm fixed pin 14 is fixed on the vertical section of U-shaped guide groove 38 all the time, guarantees loosening tooth 10 and burrows vertically downwards. On the other hand, the driven sprocket 23 drives the first crank 11, the first crank 11 drives the first connecting rod 12, and the first connecting rod 12 drives the fan-shaped pendulum block 43 to reciprocate. tooth 44, the arc-shaped sliding tooth 44 swings back and forth on the fan-shaped pendulum block 43, the arc-shaped sliding tooth 44 drives the driven sliding tooth 42, the driven sliding tooth 42 drives the second crank 45 and the second connecting rod 40, and finally drives The first swing link 9 realizes intermittent swing around the fixed shaft 41, thereby realizing that the loosening tooth control pin 39 at the end of the first swing link 9 moves in the second chute 8, and then drives the loosening tooth upper arm 7 to swing intermittently, specifically It is shown that when the loosening tooth 10 reaches the lowest point position, the fixed pin 14 of the upper arm of the loosening tooth slides out of the U-shaped guide groove 38, which drives the whole loosening tooth 10 to tilt forward, and realizes the soil loosening effect after entering the soil. When the tooth bar 6 and the right tooth bar 26 moved up to the highest point, the fixed pin 14 of the upper arm of the soil loosening tooth returned to the U-shaped guide groove 38 from the upper opening of the U-shaped guide groove 38 under the action of the first fork 9, The loosening tooth 10 is restored to the vertical state, and then enters the next cycle operation of digging into the soil, deflecting, stirring and loosening the soil.

The whole machine drives the ground wheel 18 to complete intermittent driving under the intermittent drive of the ratchet wheel 19. The time matching point of the driving process is that when the loosening tooth 10 enters the soil, the ground wheel 18 is in a static state. When the loosening tooth 10 is unearthed, the ground wheel 18 is driven intermittently forward Drive the specified loosening distance.

Claims (9)

1. A rake type intermittent scarifier comprises a driving device arranged on a frame (4), and the bottom of the frame is provided with a land wheel system, and is characterized in that the driving device is respectively connected with an intermittent land wheel driving mechanism, an intermittent scarification mechanism and an intermittent scarification tooth swinging mechanism through a driven part; wherein,

the intermittent land wheel driving mechanism comprises a cam (24) coaxially mounted with a driven piece, the cam is connected with one end of a pushing tooth (20) in an abutting mode, the middle of the pushing tooth is fixed on the rack through a sliding sleeve (21), the pushing tooth can slide on the sliding sleeve in the axial direction, a compression spring (22) is arranged on the pushing tooth between the sliding sleeve and the cam, the other end of the pushing tooth is connected with a ratchet wheel (19) in an intermittent abutting mode, and the ratchet wheel is coaxially mounted with a driving land wheel (18) of a land wheel system;

the intermittent soil loosening mechanism comprises a driving lever (34) coaxially mounted with a driven piece, and a soil loosening driving wheel (32) and a soil loosening driven wheel (30) which are arranged in front of the rack (4) and meshed with each other, wherein the soil loosening driving wheel (32) and the soil loosening driven wheel (30) are respectively radially positioned and mounted on a soil loosening driving wheel shaft (321) and a soil loosening driven wheel shaft (301) relative to the driven piece, the driven piece shaft, the soil loosening driving wheel shaft and the soil loosening driven wheel shaft are radially mounted on the rack in an isosceles triangle shape, and the driven piece shaft is located on a vertical plane of a midpoint of a vertical distance connecting line between the soil loosening driven wheel shaft and the soil loosening driving wheel shaft; a first sliding groove (341) is formed above the shifting rod (34), a movable shifting pin shaft (33) is installed in the first sliding groove, a contact bearing (28) is installed at one end, close to the soil loosening driving wheel (32), of the movable shifting pin shaft, a third swing rod (35) is fixedly installed on a soil loosening driving wheel shaft, a second swing rod (31) is fixedly installed on a soil loosening driven wheel shaft, and the contact bearing on the movable shifting pin shaft is intermittently in abutting connection with the second swing rod and the third swing rod (31 and 35) in the rotating process of the driven member; the soil loosening driven wheel shaft is provided with left and right rack driving gears (29, 5), a left rack groove and a right rack groove (27) are respectively arranged on the rack opposite to the left and right rack driving gears, left and right racks (6, 26) are respectively arranged in the left and right rack grooves, the left and right rack driving gears (29, 5) are respectively meshed with the left and right racks (6, 26), soil loosening tooth racks (15) of soil loosening teeth (10) are hinged to the bottoms of the left and right racks (6, 26) through soil loosening tooth fixing pin shafts (25), and when the second and third swing rods (31, 35) swing, the left and right rack driving gears coaxially arranged on the soil loosening driven wheel shaft intermittently reciprocate forward and backward to enable the left and right racks to move up and down to drive the soil loosening teeth to move up and down;

the intermittent type formula ripping tooth swing mechanism includes first, two crank rocker mechanisms, the front end of the first crank rocker mechanism is connected with follower, the rear end articulates a fan-shaped pendulum block (43), there are slide rails (431) along the arc section of the circumference of the fan-shaped pendulum block, the head, the end both ends of the slide rail set up first baffle (432) and second baffle (433) respectively, and the cover is equipped with the arcuate sliding tooth (44) on the slide rail, the arcuate sliding tooth is engaged with the driven sliding tooth (42), the axle of the driven sliding tooth installs the second crank (45) of the front end of the second crank rocker mechanism, the rear end of the second crank rocker mechanism connects ripping tooth rack (15) of ripping tooth; a U-shaped guide post (37) is arranged on one side of the front end of the frame, a guide block (371) is arranged at the opening end of the U-shaped guide post, a U-shaped guide groove (38) for the inlet and outlet of a ripping tooth upper arm fixing pin (14) is formed between the U-shaped guide post and the guide block, the ripping tooth upper arm fixing pin (14) is fixedly arranged at the upper end of a ripping tooth upper arm (7), the lower end of the ripping tooth upper arm is hinged and fixed with a ripping tooth frame (15) through a ripping tooth fixing pin shaft (25), a ripping tooth control pin (7) is arranged at the rear end of a second crank rocker mechanism, a second chute (8) is arranged on the ripping tooth upper arm, the ripping tooth control pin (7) is sleeved and fixed in the second chute (8), when the second crank rocker mechanism swings up and down to the extreme position, the tail end of the ripping tooth upper arm fixing pin (14) enters and exits the U-shaped guide groove (38), when, the second crank rocker mechanism swings up and down to realize the deflection of the scarification tooth rack.

2. The rake type intermittent ripper of claim 1, wherein the driving device includes a power device (1) and a transmission (3) which are arranged on the frame (4), the power device is connected with the transmission (3) through a belt (2), the transmission is provided with a driving sprocket (16), the driven member is a driven sprocket (23), and the driving sprocket (16) and the driven sprocket (23) are connected through a chain.

3. The rake type intermittent ripper as defined in claim 1, wherein the sector shaped swing block (43) is provided with a U-shaped groove (434) in a radial direction, and the link shaft (13) at the rear end of the first crank and rocker mechanism is installed in the U-shaped groove and is hinged and fixed through a bolt.

4. The rake intermittent ripper of claim 3, wherein the U-shaped slot is disposed at a center line of symmetry of the fan-shaped swing block.

5. The rake batch ripper of claim 1, wherein a fan angle of the fan-shaped swing block is between 90 ° and 180 °.

6. A rake intermittent ripper as claimed in claim 1, characterized in that the first crank and rocker mechanism includes a first crank (11) mounted on the ripping driven axle (301), the first crank (11) is hinged to one end of a first link (12), the other end of the first link (12) is fixedly provided with a link shaft (13); the second crank-rocker mechanism comprises a second crank (45), the second crank (45) is hinged with a second connecting rod (40), the second connecting rod is hinged with one end of a first swing rod (9), the first swing rod is pivoted with the rack through a fixed shaft (41), and the other end of the first swing rod is provided with a soil loosening tooth control pin (39).

7. The rake intermittent ripper of claim 1, wherein an arc length of the arc-shaped sliding tooth (44) is smaller than an arc length of the sliding rail (431).

8. A rake intermittent ripper as claimed in claim 1, characterized in that the radius of rotation of the contact bearing (28) is greater than the radius of rotation of the second and third rockers (31, 35).

9. The rake intermittent ripper of claim 1, wherein the ripping driver (32) and the ripping driven wheel (30) have the same number of teeth.