CN114731909A

CN114731909A - Turf periodic cutting device of turf removing machine

Info

Publication number: CN114731909A
Application number: CN202210252854.3A
Authority: CN
Inventors: 谢春干; 鲍建
Original assignee: Yangzhou Weibang Garden Machine Co Ltd
Current assignee: Yangzhou Weibang Garden Machine Co Ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-12

Abstract

The invention discloses a turf period cutting device of a turf cutter, which comprises a driving disc, wherein the driving disc is arranged at one end of a driving shaft through a clutch mechanism, an eccentric wheel is fixed at the middle section of the driving shaft, the periphery of the eccentric wheel is sleeved with a large end of a connecting rod, the small end of the connecting rod is hinged on a connecting rod shaft, two ends of the connecting rod shaft are supported in the middle of a cutting swing arm, the root of the cutting swing arm is hinged on a swing arm fixed shaft, and two ends of the swing arm fixed shaft are supported on a box body; the free end of the cutting swing arm is hinged with a cutter handle mandrel, the cutter handle mandrel is hinged to the upper portion of the cutter handle, a cutter handle guide block or a cutter handle guide body fixed on the box body is arranged on the periphery of the middle section of the cutter handle, and a cutting knife with a downward cutting edge is arranged at the lower end of the cutter handle. The turf removing machine can automatically cut the turf into strips with uniform sizes while cutting and stripping the turf from the turf bed into strips along the advancing direction, and the turf removing machine is high in operation efficiency, good in product quality and high in survival rate.

Description

Turf periodic cutting device of turf removing machine

Technical Field

The invention relates to a sod cutter, in particular to a periodical sod cutting device of the sod cutter, and belongs to the technical field of lawn machinery.

Background

Due to the demand of urban greening, the lawn coverage rate is higher and higher, and the method of directly transplanting the turf into a greening area is generally applied at present. The cutting of factory-grown sod from the turf bed requires the use of specialized sod cutters.

When transplanting, the sod cutter cuts and separates the sod from soil of a sod bed by a cutter under the machine belly in the advancing process, the separated sod presents a strip shape extending along the advancing direction of the sod cutter, and the strip sod needs to be divided into required lengths for facilitating the transportation and the transplanting. In actual operation, the turf is cut off manually at parallel intervals before the turf is cut off, the efficiency is low, the speed is slow, and the size error of the cut turf is large.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provide a turf periodic cutting device of a turf cutter, wherein the turf cutter automatically cuts and strips turf from a turf bed into long strips along the advancing direction, and simultaneously cuts the turf into uniform-size strips, so that the turf periodic cutting device has the advantages of high operating efficiency, small finished product size error, good quality, convenience in transplantation and high survival rate.

In order to solve the technical problems, the turf period cutting device of the turf removing machine comprises a driving disc, wherein the driving disc is installed at one end of a driving shaft through a clutch mechanism, an eccentric wheel is fixed at the middle section of the driving shaft, the periphery of the eccentric wheel is sleeved with a large end of a connecting rod, the small end of the connecting rod is hinged to a connecting rod shaft, two ends of the connecting rod shaft are supported in the middle of a cutting swing arm, the root of the cutting swing arm is hinged to a swing arm fixed shaft, and two ends of the swing arm fixed shaft are supported on a box body; the free end of the cutting swing arm is hinged to a cutter handle mandrel, the cutter handle mandrel is hinged to the upper portion of the cutter handle, a cutter handle guide block or a cutter handle guide body fixed on the box body is arranged on the periphery of the middle section of the cutter handle, and a cutting knife with a downward cutting edge is arranged at the lower end of the cutter handle.

As an improvement of the invention, the clutch mechanism comprises a clutch outer core and a clutch inner core, the periphery of the clutch outer core is embedded in an inner cavity of the disk sleeve of the driving disk and is connected in a matching way through a boss of the clutch outer core, an inner hole of the clutch outer core is sleeved on the periphery of the clutch inner core, and the clutch inner core is fixed on the driving shaft; a lock tongue chamber which extends along the axial direction and can accommodate a lock tongue and a lock tongue shaft is arranged on the circumference of the clutch inner core, and a shaft socket corresponding to the excircle of the lock tongue shaft is arranged at the bottom of the lock tongue chamber; the internal perisporium of the outer core of separation and reunion is the equipartition and has a plurality of outer core spring bolt draw-in grooves that supply the spring bolt embedding to combine, the root fixed connection of spring bolt is on the circumference of spring bolt axle one end, the axis of spring bolt axle is on a parallel with the axis of drive shaft.

As a further improvement of the invention, a bolt swing arm extending outwards along the radial direction of the bolt shaft is fixedly connected to the circumference of the other end of the bolt shaft, the bolt swing arm extends outwards from a fan-shaped notch of a swing arm limiting ring, and a concave arc ring groove is arranged on the outer circumference of the swing arm limiting ring; the middle section of the spring bolt swing arm is connected with a spring bolt tension spring, the spring bolt tension spring is accommodated in the concave arc ring groove, and the other end of the spring bolt tension spring is fixed on a tension spring column head of the swing arm limiting ring.

As a further improvement of the invention, the free end of the lock tongue keeps the trend of being embedded into the lock tongue clamping groove of the outer core by the tension of the lock tongue tension spring, the bottom of the free end of the lock tongue swing arm is abutted against the top of the ejector rod, the root of the ejector rod is fixed at one end of the ejector rod rotating shaft along the radial direction, the middle section of the ejector rod rotating shaft penetrates through the shaft sleeve of the box body, the other end of the ejector rod rotating shaft is fixed with an ejector rod driving arm which extends outwards along the radial direction, the free end of the ejector rod driving arm is provided with a probe and connected with a probe reset spring, the axes of the probe and the ejector rod rotating shaft are parallel to the axis of the signal disc, and at least one trigger block which pushes the probe and causes the ejector rod driving arm to swing is fixed at the position of the signal disc close to the circumference.

As a further improvement of the invention, a signal panel hub is arranged in the center of the signal panel, a signal panel driving chain wheel is movably sleeved at one end of the signal panel hub, and a hollow signal panel short groove is arranged at the position of the signal panel close to the signal panel hub; a chain wheel tension spring column head is fixed on the end face of a driving chain wheel of the signal panel, the end head of the chain wheel tension spring column head penetrates through the short groove of the signal panel and is hinged with a signal panel tension spring, and the other end of the signal panel tension spring is hinged to the column head on the end face of the signal panel;

the signal panel hub is supported on the signal panel shaft sleeve through a bearing, one end of the signal panel shaft sleeve is abutted against the signal panel fixing seat, the signal panel fixing seat is connected to the signal mechanism support, and the signal mechanism support is connected to the box body; the other end of the signal panel shaft sleeve is pressed with a return spring support, and a signal panel central screw passes through the return spring support and a central hole of the signal panel shaft sleeve and is screwed in a screw hole of the signal panel fixing seat; the other end of the probe return spring is hinged on a hook head of the return spring support.

As a further improvement of the invention, the clutch inner core is a stepped shaft, two ends of the clutch inner core are respectively sleeved with a bolt shaft seat, the bolt shaft seats are respectively abutted against shaft shoulders at two ends of the clutch inner core, the inner wall of the bolt shaft seat is respectively provided with a bolt shaft hole and a bolt shaft seat inner boss, two ends of the bolt shaft are respectively supported in the bolt shaft holes of the bolt shaft seats, the peripheries of the two bolt shaft seats are respectively sleeved with a driving disc bearing, and the driving disc bearings are respectively supported in inner holes at two ends of a driving disc sleeve; the clutch inner core is provided with an inner core axial key groove in the periphery, and the bolt shaft seat inner boss is embedded in the corresponding inner core axial key groove respectively.

As a further improvement of the invention, the inner wall of the swing arm limiting ring is provided with a limiting ring inner boss which is embedded in a corresponding inner core axial key groove, and one side end face of the swing arm limiting ring is sequentially abutted against the end face of an adjacent lock tongue shaft seat; the swing arm limiting ring and the adjacent spring bolt shaft seat are fixed on the clutch inner core by the fastening screw extending along the axial direction, or the swing arm limiting ring and the adjacent spring bolt shaft seat are connected with the clutch inner core in an axial limiting way through the clamp spring embedded into the annular groove at the end of the clutch inner core.

As a further improvement of the invention, a driving chain wheel of the signal disc is in transmission connection with a small signal chain wheel through a signal driving chain, the small signal chain wheel is fixed at one end of a distance-measuring intermediate shaft, a distance-measuring chain wheel II is installed at the other end of the distance-measuring intermediate shaft, the distance-measuring chain wheel II is in transmission connection with the distance-measuring chain wheel through a distance-measuring chain, the distance-measuring chain wheel I is fixed at one end of a distance-measuring disc shaft, a distance-measuring disc is fixed at the other end of the distance-measuring disc shaft, and a plurality of sector fluted discs which are adjustable in position and symmetrically distributed in the center are fixed on the distance-measuring disc.

As a further improvement of the invention, the top of the knife handle is hooked with a swing compensation tension spring, and the other end of the swing compensation tension spring is hooked on the box body.

As a further improvement of the invention, a fixed-phase brake device is mounted at the other end of the driving shaft, the fixed-phase brake device comprises a brake drum fixed on the driving shaft, a brake band is annularly surrounded on the circumference of the brake drum, one end of the brake band is fixed at the upper end of a brake lever, the upper end of the brake lever is hinged on a box body through a lever fixed shaft, the other end of the brake band is fixed at one end of a tightening screw, the other end of the tightening screw penetrates out of a through hole at the lower end of the brake lever, a compression spring is sleeved at the outer end of the tightening screw and is screwed with a tightening nut, and the tightening nut presses the compression spring on the end face of a hole at the lower end of the brake lever through a gasket; one side of the brake drum is provided with a cam disc-shaped structure, the middle part of the brake lever is hinged with a brake signal roller, and the brake signal roller is attached to the periphery of the cam disc-shaped structure.

As a further improvement of the invention, when the knife handle is positioned at the top dead center position, the top point of the cam disc structure is contacted with the brake signal roller, the top of the mandril is supported below the bolt swing arm, and the clutch outer core is separated from the clutch inner core in a transmission way.

As a further improvement of the invention, the middle section of the driving shaft is supported on the wall of the box body through two groups of box body bearing seats, wave springs are respectively pressed on the outer sides of the two box body bearing seats, axial check rings are respectively arranged on the outer sides of the wave springs, each axial check ring comprises two semi-rings with opposite openings, the two semi-rings are enclosed and clamped into the positioning ring grooves of the driving shaft, and the outer edges of the two semi-rings are jointly limited in the inner cavities of the bowl-shaped hoop.

Compared with the prior art, the invention has the following beneficial effects: 1. the clutch mechanism has simple structure, easy processing, low manufacturing cost and small overall dimension, and is directly arranged in the inner cavity of the driving disc; the stress situation of the spring bolt after combination is good, the spring bolt mainly bears compressive stress during transmission, the borne torque points to the axis of the spring bolt shaft, the load capacity is strong, the load bearing capacity is strong, the transmissible torque is extremely large, the spring bolt can bear impact loads such as turf cutting and the like for a long time, the fatigue damage is not easy to occur, and the service life is long.

2. The phase position of the spring bolt is controlled through the swing arm limiting ring, the spring bolt swing arm and the ejector rod, the spring bolt is embedded into the spring bolt clamping groove of the outer core, the combination of the clutch outer core and the clutch inner core is achieved, the driving shaft rotates, the spring bolt retracts into the spring bolt chamber, the transmission of the clutch outer core and the clutch inner core is separated, and the driving shaft stops.

3. The lock tongue shaft seat provides support for the lock tongue shaft, is directly fixed on the clutch inner core and provides support for the driving disc bearing.

4. When the clutch is separated, the brake device can immediately and reliably brake the driving shaft synchronously and automatically, so that redundant subsequent execution unit actions are avoided, and turf damage caused by 'continuous cutting' is avoided.

5. The advancing stroke of the sod cutter is converted into the rotation angle of the signal disc, and taking the case that a trigger block is fixed on the circumference of the signal disc as an example, when the equipment reaches the set stroke, the signal disc rotates for a circle, and the trigger block on the circumference pushes the ejector rod driving arm to swing outwards once. Then the ejector rod is driven to swing through the ejector rod driving arm and the ejector rod rotating shaft, so that the clutch mechanism is triggered to act in time. After the trigger block crosses the probe, the tension of the probe reset spring and the signal panel tension spring enables the probe to fast cross the trigger block again and then abut against the circumference of the signal panel.

6. The sod removing machine can transversely cut the sod into strips with uniform specifications according to the set size when cutting and stripping the sod from the sod bed into strips along the advancing direction, thereby reducing the labor intensity of workers, greatly improving the working efficiency, simultaneously ensuring good quality of the sod, neatly marking the size, facilitating the splicing during transplantation and being more beautiful and easier to survive.

Drawings

The invention will be described in further detail with reference to the following drawings and detailed description, which are provided for reference and illustration purposes only and are not intended to limit the invention.

FIG. 1 is a first perspective view of a sod cycle cutting apparatus of the sod cutter of the present invention;

FIG. 2 is a second perspective view of the periodic cutting device of the sod cutter of the present invention;

FIG. 3 is a perspective view of the clutch mechanism, the traverse mechanism and the brake mechanism of the present invention;

FIG. 4 is an exploded view of the clutch mechanism, the traverse mechanism and the brake mechanism of the present invention;

FIG. 5 is an exploded view of the signaling mechanism of the present invention;

FIG. 6 is an exploded view of the clutch mechanism of the present invention;

FIG. 7 is a perspective view of the clutch mechanism of the present invention in an engaged state;

FIG. 8 is a perspective view of the clutch mechanism of the present invention in a disengaged state;

FIG. 9 is a state diagram of the probe triggering process of the present invention;

FIG. 10 is a perspective view of the clutch mechanism and the brake mechanism of the present invention;

fig. 11 is a perspective view of the brake mechanism of the present invention.

In the figure: 1. a power wheel; 2. a main drive chain; 3. a drive disc;

4. the clutch outer core; 4a, clutching the boss of the outer core; 4b, a lock tongue clamping groove of the outer core;

5. an inner clutch core; 5a, a clutch inner core boss; 5b. a bolt chamber; 5c, an inner core axial key groove;

6. a drive shaft; 6a, a clamp spring groove; 6b, positioning ring grooves;

7. a latch shaft; a locking tongue; 7b, a bolt swing arm; 7c, a spring bolt tension spring;

8. a lock tongue shaft seat; 8a, a bolt shaft hole; 8b, a spring bolt shaft seat inner boss;

9. a swing arm limit ring; 9a, a concave arc ring groove; 9b, limiting ring tension spring column cap;

10. a drive disc bearing; 11. a clutch shaft end gland; 12. a box body bearing seat; 13. a wave spring; 14. an axial retainer ring; a bowl-shaped collar; 15. a box body; a signaling mechanism support;

16. a probe; 17. a mandril driving arm; 18. a rotating shaft of the mandril; 19. a top rod; 20. a probe return spring;

clutch type cut-off system

21. Fixing a swing arm shaft; 21a, a fixed shaft sleeve; 22. an eccentric wheel; 22a, an eccentric wheel cover plate; 22b, clamping springs for shafts; 23. a connecting rod; 24. a link shaft; 24a. a bearing housing; 25. cutting the swing arm; 26. a knife handle mandrel; 26a, a bearing sleeve; 27. a knife handle; 27a, a tool shank hinge hole; 27b, a tool shank guide block; 27c, a shank guide; 28. a cutting knife; 29. pressing a cutter plate; 30. a swing compensation tension spring;

odometry triggering system

31. A log disc; 31a, a fan-shaped fluted disc; 31b. a odometer disc shaft; 32. a first odometer sprocket; 33. a distance chain; 34. a second odometer sprocket; 35. a distance-measuring intermediate shaft; signal small sprocket; 36. a signal driving chain; 37. a signal panel driving sprocket; 37a, a sprocket tension spring column head;

38. a signal panel; signal panel hub 38 a; signal panel short slot 38 b; 38c, a trigger block; signal panel tension springs;

39. a signal panel shaft sleeve; signal panel center screw; 40. a return spring support;

brake device

41. A brake drum; 42. a cam disk structure; 43. a brake band; 44. a connecting member; 45. a brake lever; 46. fixing the shaft by a lever; 47. a brake signal roller; 48. tightening the screw; 49. compressing the spring; 50. and tightening the nut.

Detailed Description

In the following description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not mean that the apparatus must have a specific orientation.

As shown in fig. 1 to 4, the turf period cutting device of the turf cutter of the invention comprises a clutch mechanism, a signal mechanism, a transverse cutting mechanism and a brake mechanism, a driving disc 3 is mounted at one end of a driving shaft 6 through the clutch mechanism, an eccentric wheel 22 is fixed at the middle section of the driving shaft 6 through a spline, the periphery of the eccentric wheel 22 is sleeved with the large end of a connecting rod 23, the small end of the connecting rod 23 is hinged on a connecting rod shaft 24, two ends of the connecting rod shaft 24 are supported at the middle part of a cutting swing arm 25, the root part of the cutting swing arm 25 is hinged on a swing arm fixed shaft 21, and two ends of the swing arm fixed shaft 21 are supported on a box body 15; the free end of the cutting swing arm 25 is hinged with a cutter handle mandrel 26, the cutter handle mandrel 26 is hinged to the upper portion of the cutter handle 27, the lower end of the cutter handle 27 is welded with a transverse cutting knife bracket, and a cutter pressing plate 29 presses a cutting knife 28 on the cutting knife bracket and is fixedly connected with the cutting knife bracket through a bolt. The cutting knife 28 is parallel to the swing arm fixed shaft 21. The swing arm fixed shaft 21, the connecting rod 23, the connecting rod shaft 24, the cutting swing arm 25, the cutter handle mandrel 26, the cutter handle 27 and the cutting knife 28 form a transverse cutting mechanism, and the long-strip turf can be transversely cut into strip blocks.

The driving disc 3 is a chain wheel or a belt pulley, the driving disc 3 is in transmission connection with the power wheel 1 through the main driving chain 2 or the main driving belt, and the power wheel 1 is installed on an output shaft of the gearbox.

When the engine drives the sod cutter to walk through the gearbox, the horizontal cutting knife advances along the lower part of the sod bed to cut and separate the sod from the soil of the sod bed, the two side edges of the horizontal cutting knife form a sod boundary, and the sod is cut while advancing along with the sod cutter, so that strip-shaped sod is formed on the sod bed. When the horizontal cutter lifts the turf, the gearbox drives the driving disc 3 to rotate through the power wheel 1 and the main driving chain 2 or the main driving belt.

When the clutch mechanism is in a combined state, the driving disk 3 drives the driving shaft 6 to rotate, the eccentric wheel 22 arranged on the driving shaft 6 rotates along with the driving, the eccentricity of the eccentric wheel 22 enables the large end of the connecting rod 23 to float up and down, the small end of the connecting rod 23, namely the upper end, pulls the connecting rod shaft 24 to float up and down, the root of the cutting swing arm 25 is hinged on the swing arm fixed shaft 21, the connecting rod shaft 24 pushes the middle of the cutting swing arm 25 to float up and down in a small range, the free end of the cutting swing arm 25 drives the cutter handle mandrel 26 to float up and down in a large range, the cutter handle mandrel 26 pulls the cutter handle 27 to lift up or fall down, and when the cutter handle 27 falls, the cutting edge at the lower end of the cutting knife 28 cuts off the strip-shaped turf into strip blocks. The lower end of the cutting blade 28 may be provided with a serrated edge portion to reduce resistance in cutting the turf.

When the clutch mechanism is in a transmission disengagement state, the driving disc 3 rotates, the driving shaft 6 is kept still, and the tool holder 27 is in a lifting state; when the sod removing machine walks, the horizontal cutting knife removes strip sod and waits for the next cutting.

The middle section of the knife handle 27 is provided with a knife handle guide block 27b or a knife handle guide body 27c around, and the knife handle guide block 27b or the knife handle guide body 27c are respectively fixed on the box body 15, so that the up-and-down movement of the knife handle 27 is ensured, and the shaking is reduced.

The top hook of handle of a knife 27 has swing compensation extension spring 30, and the other end hook of swing compensation extension spring 30 is hung on box 15, can further reduce rocking of handle of a knife 27.

As shown in fig. 5, the clutch mechanism includes an outer clutch core 4 and an inner clutch core 5, the outer clutch core 4 is embedded in the inner cavity of the disk sleeve of the driving disk 3 and is connected with the outer clutch core boss 4a in a matching manner, and the outer clutch core 4 and the disk sleeve of the driving disk 3 can be integrally formed. The internal perisporium of the outer core 4 of separation and reunion is the equipartition and has a plurality of outer core spring bolt draw-in grooves 4b that supply spring bolt 7a embedding to combine.

A central hole of the clutch inner core 5 is provided with a spline hole and is fixed on the driving shaft 6 through the spline hole; the inner hole of the clutch outer core 4 is sleeved on the periphery of the clutch inner core 5, the clutch inner core 5 is a stepped shaft, and a clutch inner core boss 5a is arranged at the middle section. The root of the bolt 7a is fixedly connected to the circumference of one end of the bolt shaft 7, and the axis of the bolt shaft 7 is parallel to the axis of the driving shaft 6; the circumference of the clutch inner core 5 is provided with a bolt chamber 5b extending along the axial direction, the bottom of the bolt chamber 5b is semicircular to support a bolt shaft 7, and the upper part of the bolt chamber 5b is cuboid to accommodate a bolt 7a.

As shown in fig. 7, the latch shaft 7 can drive the latch 7a to rotate, when the free end of the latch 7a is embedded into the latch slot 4b of the outer core, the clutch outer core 4 is combined with the clutch inner core 5, the driving disc 3 drives the driving shaft 6 to rotate through the clutch mechanism, the driving shaft 6 drives the transverse cutting mechanism to act, and the cutting knife 28 cuts the strip-shaped turf into strips and blocks.

As shown in fig. 8, when the latch 7a is located in the latch chamber 5b, the clutch outer core 4 idles around the clutch inner core boss 5a, the clutch mechanism is in a disengaged state, the drive plate 3 idles, and the cross-cutting mechanism does not operate.

As shown in fig. 6 to 8, a bolt swing arm 7b extending outward along the radial direction of the bolt shaft is fixedly connected to the circumference of the other end of the bolt shaft 7, the bolt swing arm 7b extends outward from a fan-shaped notch of a swing arm limiting ring 9, and a concave arc ring groove 9a is formed in the outer circumference of the swing arm limiting ring 9; the bottom of the middle section of the spring bolt swing arm 7b is connected with a spring bolt tension spring 7c through a swing arm tension spring column head, the spring bolt tension spring 7c is accommodated in the concave arc ring groove 9a, and the other end of the spring bolt tension spring is fixed on the limit ring tension spring column head 9b. The tension of the bolt tension spring 7c keeps the free end of the bolt 7a to be embedded in the bolt clamping groove 4b of the outer core.

As shown in fig. 7, when the swing arm 7b of the lock tongue is not blocked, under the action of the tension spring 7c of the lock tongue, the swing arm 7b of the lock tongue leans on the lower edge of the fan-shaped notch of the swing arm limiting ring, the swing arm 7b of the lock tongue drives the lock tongue shaft 7 to rotate clockwise by a certain angle, when the free end of the lock tongue 7a swings outwards and is embedded into the lock tongue clamping groove 4b of the outer core, the clutch outer core 4 and the clutch inner core 5 are combined, the driving disc 3 drives the driving shaft 6 to rotate through the clutch mechanism, and the swing arm 7b of the lock tongue rotates synchronously with the driving shaft 6.

As shown in fig. 8, when the free end of the swing arm 7b of the lock tongue is blocked in the rotation process, the swing arm 7b of the lock tongue drives the lock tongue shaft 7 to rotate counterclockwise by a certain angle until the swing arm 7b of the lock tongue abuts against the upper edge of the sector notch of the swing arm limiting ring, the free end of the lock tongue 7a swings inwards to be embedded into the lock tongue chamber 5b, the driving disc 3 and the clutch outer core 4 rotate idly, and the clutch inner core 5, the swing arm 7b of the lock tongue and the driving shaft 6 do not rotate and are in a state of waiting for grass cutting.

As shown in fig. 2 to 5 and 8, the bottom of the free end of the swing arm 7b abuts against the top of the ram 19, the root of the ram 19 is fixed at one end of the ram rotating shaft 18 along the radial direction, the other end of the ram rotating shaft 18 is fixed with the ram driving arm 17 extending outward along the radial direction, the free end of the ram driving arm 17 is provided with the probe 16 and is connected with the probe return spring 20, the other end of the probe return spring 20 is connected with the fixed shaft end of the signal disc 38, the axial lines of the probe 16 and the ram rotating shaft 18 are parallel to the axial line of the signal disc 38, and the portion of the signal disc 38 close to the circumference is fixed with at least one trigger block 38c which pushes the probe 16 and causes the ram driving arm 17 to swing.

When a trigger block 38c is fixed on the circumference of the signal disc 38, the signal disc 38 rotates a circle, and the trigger block 38c on the circumference pushes the ram driving arm 17 to swing outwards once. When N trigger blocks 38c are uniformly fixed on the circumference of the signal disc 38, the signal disc 38 rotates for one circle, and each trigger block 38c on the circumference pushes the ejector rod driving arm 17 to swing outwards N times.

When the trigger block 38c contacts the probe 16 and pushes the probe to swing outwards, the probe 16 drives the upper end of the ejector rod driving arm 17 to swing outwards, the root of the ejector rod driving arm 17 drives the ejector rod rotating shaft 18 to rotate in the forward direction, the ejector rod rotating shaft 18 drives the ejector rod 19 to swing outwards, the top of the ejector rod 19 is separated from the free end of the lock tongue swing arm 7b, the lock tongue swing arm 7b rotates clockwise and abuts against the lower edge of the sector notch of the swing arm limiting ring under the action of the pulling force of the lock tongue tension spring 7c, the free end of the lock tongue 7a is driven to swing outwards through the lock tongue shaft 7 to be embedded into the lock tongue clamping groove 4b of the outer core, the clutch outer core 4 is combined with the clutch inner core 5, the driving disc 3 drives the driving shaft 6 to rotate for a circle through the clutch mechanism, and the lock tongue swing arm 7b and the driving shaft 6 rotate for a circle synchronously.

After the trigger block 38c leaves the probe 16, under the tension of the probe return spring 20, the probe 16 rapidly swings back and resets, i.e., swings inward by an angle, the upper end of the ejector rod driving arm 17 swings inward, the root of the ejector rod driving arm 17 drives the ejector rod rotating shaft 18 to rotate reversely, the ejector rod rotating shaft 18 drives the ejector rod 19 to swing inward, the top of the ejector rod 19 returns to the motion track of the free end of the bolt swing arm 7b, and after the bolt swing arm 7b synchronously rotates for a circle along with the driving shaft 6, the free end of the bolt swing arm 7b is blocked by the ejector rod 19 to rotate reversely. The spring bolt swing arm 7b drives the spring bolt shaft 7 to rotate anticlockwise for a certain angle until the spring bolt swing arm 7b abuts against the upper edge of the sector notch of the swing arm limiting ring, the free end of the spring bolt 7a swings inwards to be embedded into the spring bolt chamber 5b, the driving disc 3 and the clutch outer core 4 rotate in an idling mode, the clutch inner core 5, the spring bolt swing arm 7b and the driving shaft 6 do not rotate, and the state of waiting for grass cutting is achieved.

As shown in fig. 2, 5 and 9, a signal panel hub 38a is arranged at the center of the signal panel 38, a signal panel driving sprocket 37 is movably sleeved at one end of the signal panel hub 38a, and a hollow signal panel short groove 38b is arranged at a position of the signal panel 38 close to the signal panel hub 38 a; the end face of the signal panel driving chain wheel 37 is fixed with a chain wheel tension spring column head 37a, the end of the chain wheel tension spring column head 37a penetrates through the signal panel short groove 38b and is hinged with a signal panel tension spring 38d, the other end of the signal panel tension spring 38d is hinged on the signal panel tension spring column head, and the signal panel tension spring column head is fixed on the column head of the end face of the signal panel 38.

The signal disc driving chain wheel 37 drags the signal disc 38 to rotate through the signal disc tension spring 38d, when the trigger block 38c contacts the probe 16, the trigger lift state is firstly entered, namely one side edge of the trigger block 38c pushes the ejector rod driving arm 17 to swing outwards, then the probe 16 reaches the top of the trigger block 38c, then under the tension action of the probe return spring 20, the probe 16 enters the trigger fall state until the other side of the trigger block 38c is reached and the probe is still tangent to the circumference of the signal disc 38, and thus one trigger swing of the probe 16 is realized.

As shown in fig. 9, the signal pad short slot 38b is used to buffer a phase difference when triggered, so as to realize slow rise and fast fall of the probe 16. When the signal disc 38 normally rotates freely, the sprocket tension spring stud 37a is located on the side of the signal disc short slot 38b close to the signal disc tension spring stud.

When the probe 16 enters the trigger lift state, the signal disc 38 lags the driving sprocket 37 relative to the signal disc 38 due to the resistance to triggering, a phase difference is generated, the signal disc tension spring 38d is lengthened to store energy, and the sprocket tension spring post 37a slides along the signal disc short slot 38b to the side far away from the signal disc tension spring post.

When the trigger enters the descending stroke, the signal panel tension spring 38d contracts due to energy storage release, the signal panel 38 is driven to rotate for an angle relative to the signal panel driving chain wheel 37 to eliminate phase difference, the purpose that the trigger block 38c is rapidly separated from the probe 16 is achieved, and the chain wheel tension spring column head 37a slides to one side close to the signal panel tension spring column head along the signal panel short groove 38b relatively. Therefore, the ejector rod 19 can quickly return to the position for blocking the swing arm 7b of the lock tongue, and after the cutting-off action of the turf is completed, the transverse cutting mechanism is prevented from generating redundant actions, the turf is prevented from being damaged, and the specification and the quality of the turf are ensured.

As shown in fig. 5, the signal panel hub 38a is supported on the signal panel shaft sleeve 39 through a bearing, one end of the signal panel shaft sleeve 39 abuts against the signal panel fixing seat, the signal panel fixing seat is connected to the signal mechanism support 15a, and can be integrally formed, and the signal mechanism support 15a is fixed on the box body 15. The other end of the signal panel shaft sleeve 39 is pressed with a return spring support 40, and a signal panel central screw 39a passes through the return spring support 40, a bearing and a central hole of the signal panel shaft sleeve 39 and is screwed in a screw hole of the signal panel fixed seat; the reset spring support 40 is provided with a tilted column head, and the other end of the probe reset spring 20 is hinged on the hook head of the reset spring support 40. The ends of the signal panel hub 38a and the signal panel shaft sleeve 39 both exceed the end surface of the signal panel 38, so that the reset spring support 40 and the signal panel 38 are separated by a certain distance, and interference between the trigger block 38c and the probe reset spring 20 during rotation is avoided.

The signal mechanism support 15a provides support for the signal panel fixing seat and the odometer intermediate shaft 35, and the signal panel central screw 39a provides support for the bearing and the signal panel shaft sleeve 39; the length of signal disc axle sleeve 39 slightly is greater than the length of signal disc wheel hub 38a, for reset spring support 40 provides axial positioning, reset spring support 40 provides the fixed point for the interior termination of probe reset spring 20.

As shown in fig. 6 to 8, two ends of the clutch inner core 5 are respectively sleeved with a bolt shaft seat 8, the bolt shaft seats 8 respectively abut against steps on two sides of a boss 5a of the clutch inner core to realize axial positioning, the inner wall of the bolt shaft seat 8 is respectively provided with a bolt shaft hole 8a and a bolt shaft seat inner boss 8b, two ends of the bolt shaft 7 are respectively supported in the bolt shaft hole 8a of the bolt shaft seat 8, the peripheries of the two bolt shaft seats 8 are respectively sleeved with a driving disc bearing 10, the driving disc bearings 10 are respectively supported in inner holes on two ends of a disc sleeve of the driving disc 3, so that the driving disc 3 can freely rotate on the clutch inner core 5; inner core axial keyways 5c are respectively arranged on the peripheries of two ends of the clutch inner core 5, and the bolt shaft seat inner bosses 8b are respectively embedded in the corresponding inner core axial keyways 5c to realize radial positioning of the bolt shaft seat 8 on the clutch inner core 5. The clutch inner core 5 can be integrally formed or can be processed in sections and then axially connected into a whole through screws.

The inner wall of the swing arm limiting ring 9 is provided with a limiting ring inner boss which is embedded in a corresponding inner core axial key groove 5c to realize radial positioning, the inner end face of the swing arm limiting ring 9 is pressed on the outer side of a corresponding spring bolt shaft seat 8, and the swing arm limiting ring 9 and the adjacent spring bolt shaft seat 8 are fixed on the clutch inner core 5 along a fastening screw extending axially to realize axial fixation. The swing arm limiting ring 9 and the clutch inner core 5 can be processed into a whole, and an avoiding groove for the swing of the spring bolt swing arm 7b is also arranged at the position, corresponding to the fan-shaped notch of the swing arm limiting ring 9, on the clutch inner core 5.

As shown in fig. 1, 2 and 5, the signal disc driving sprocket 37 is in transmission connection with the signal small sprocket 35a through the signal driving chain 36, the signal small sprocket 35a is fixed at one end of the distance measuring intermediate shaft 35, the distance measuring sprocket 34 is installed at the other end of the distance measuring intermediate shaft 35, the distance measuring sprocket 34 is in transmission connection with the distance measuring sprocket 32 through the distance measuring chain 33, the distance measuring sprocket 32 is fixed at one end of the distance measuring disc shaft 31b, the distance measuring disc 31 is fixed at the other end of the distance measuring disc shaft 31b, and the sector-shaped toothed discs 31a which are distributed in central symmetry are fixed on the distance measuring disc 31.

Each fan-shaped fluted disc 31a is provided with a fluted disc elongated slot extending along the radial direction of the fan-shaped fluted disc, and bolts penetrate through the fluted disc elongated slots to fix the fan-shaped fluted disc 31a on the odometer disc 31 respectively.

The excircle and the diameter of the fan-shaped fluted disc 31a can be changed by changing the installation position of the fan-shaped fluted disc 31a on the log disc 31, the sod cutter is used for walking and sod cutting, the log disc 31 walks on a lawn through the fan-shaped fluted disc 31a and measures the size, the log disc 31 drives the log chain wheel 32 to rotate through the log disc shaft 31b, the log chain wheel 32 drives the log chain wheel 34 to rotate through the log chain 33, the log chain wheel 34 drives the signal small chain wheel 35a to rotate through the log intermediate shaft 35, the signal small chain wheel 35a drives the signal disc driving chain wheel 37 to rotate through the signal disc driving chain 36, the signal disc driving chain wheel 37 pulls the signal disc 38 to rotate through the signal disc tension spring 38d, the signal disc 38 rotates for a certain phase, the trigger probe 16 swings, and one-time grass cutting is realized, and the like. Therefore, the length of the turf can be accurately measured, turf strips with uniform size can be automatically cut periodically, and manual cutting in the later period is omitted.

As shown in fig. 2 to 4, 10 and 11, a fixed-phase brake device is mounted at the other end of the driving shaft 6, the fixed-phase brake device includes a brake drum 41 fixed on the driving shaft 6, a brake band 43 surrounds the circumference of the brake drum 41, one end of the brake band 43 is fixed at the upper end of a brake lever 45 through a connecting piece 44, the upper end of the brake lever 45 is hinged on the box body 15 through a lever fixed shaft 46, the other end of the brake band 43 is fixed at one end of a tightening screw 48, the other end of the tightening screw 48 penetrates through a through hole at the lower end of the brake lever 45, an outer end of the tightening screw 48 is sleeved with a compression spring 49 and is screwed with a tightening nut 50, and the tightening nut 50 presses the compression spring 49 on the end face of the lower end hole of the brake lever 45 through a gasket; the pre-tightening force of the compression spring 49 can be adjusted by rotating the tightening nut 50. One side of the brake drum 41 is provided with a cam disc-shaped structure 42, the middle part of the brake lever 45 is hinged with a brake signal roller 47, and the brake signal roller 47 is attached to the periphery of the cam disc-shaped structure 42.

After the driving shaft 6 rotates for a circle, the ejector rod 19 rotates in, the free end of the bolt swing arm 7b impacts the top of the ejector rod 19 to stop, the clutch outer core 4 is disengaged from the clutch inner core 5 in a transmission mode, at the moment, the knife handle 27 is located at the top dead center position, the top point of the cam disc-shaped structure 42 is in contact with the brake signal roller 47 to push the brake signal roller 47 to swing outwards, the brake signal roller 47 drives the middle of the brake lever 45 to swing outwards, the lower portion of the brake lever 45 swings outwards around the lever fixed shaft 46, meanwhile, the compression spring 49 is compressed, the compression spring 49 drives the tightening screw 48 to move outwards through the tightening nut 50, the tightening screw 48 pulls the free end of the brake band 43 to move outwards and clamp the free end of the brake band 41, the brake drum 41 locks the driving shaft 6, braking when the driving shaft 6 stops is achieved, and inertia rotation is eliminated. This keeps the shank 27 in the top dead centre position and prevents it from falling accidentally.

When the signal cutting mechanism is triggered, the clutch outer core 4 and the clutch inner core 5 are in a combined state, the driving disc 3 drives the driving shaft 6 to rotate through the clutch mechanism, the driving shaft 6 drives the brake drum 41 and the cam disc-shaped structure 42 to forcibly rotate, so that the convex part of the cam disc-shaped structure 42 is separated from the brake signal roller 47, and the brake band 43 is loosened. Thus, periodic clutch braking can be achieved according to the cutoff cycle.

As shown in fig. 1 and 4, the middle section of the driving shaft 6 is supported in two sets of box bearing blocks 12, the two box bearing blocks 12 are located in the inner cavity of the box and located on two sides of the eccentric wheel 22, the two box bearing blocks 12 are respectively fixed on the inner wall of the side wall of the box 15 through bolts, wave springs 13 are respectively pressed on the outer sides of the two box bearing blocks 12, axial retaining rings 14 are respectively arranged on the outer sides of the wave springs 13, each axial retaining ring 14 comprises two half rings with opposite openings, and the two half rings are enclosed and clamped into a positioning ring groove 6b of the driving shaft 6, so that the axial positioning between the driving shaft 6 and the box bearing blocks 12 is realized, and the installation is convenient. The outer edges of the two half rings are limited in the inner cavity of the bowl-shaped hoop 14a together, and the bottom of the bowl faces outwards, so that the two half rings are prevented from loosening. The bowl bottom of one bowl-shaped hoop 14a is abutted by the inner end face of the clutch inner core 5, and the bowl bottom of the other bowl-shaped hoop 14a is abutted by the inner end face of the brake drum 41.

One end of the eccentric wheel 22 is provided with an eccentric wheel flange, the other end of the eccentric wheel 22 is fixed with an eccentric wheel cover plate 22a through screws, and the eccentric wheel flange and the eccentric wheel cover plate 22a respectively carry out axial limit on two sides of the large end of the connecting rod 23. The large ends of the connecting rods 23 can both rotate on the eccentric 22 and ensure an axial positioning with respect to each other.

Two sides of the eccentric wheel 22 are respectively provided with a shaft snap spring 22b, the two shaft snap springs 22b are respectively clamped in the snap spring groove 6a of the driving shaft 6, one shaft snap spring 22b is positioned at the outer side of the flange of the eccentric wheel, and the other shaft snap spring 22b is positioned at the outer side of the cover plate 22a of the eccentric wheel, so that the eccentric wheel 22 is axially positioned on the driving shaft 6.

A clutch shaft end gland 11 is pressed on the outer side of the inner ring of the outer driving disc bearing 10 and the outer end face of the clutch inner core 5 together, and the center of the clutch shaft end gland 11 is fixed at the shaft end of the driving shaft 6 through a central screw, so that the axial positioning of the clutch inner core 5 is realized.

The cutting swing arms 25 are parallel to each other and arranged at intervals, the middle sections of the swing arm fixed shafts 21 are inserted into the fixed shaft sleeves 21a, the fixed shaft sleeves 21a are stepped cylindrical, the roots of the two cutting swing arms 25 are clamped on two sides of the shaft shoulders of the fixed shaft sleeves, the axial positioning of the roots of the two cutting swing arms 25 on the fixed shaft sleeves 21a is achieved, and the two cutting swing arms can rotate mutually.

The connecting rod shaft 24 is a stepped shaft with small diameters at two ends, a bearing sleeve 24a is arranged in a shaft hole at the small end of the connecting rod 23, the large-diameter part of the connecting rod shaft is positioned in the bearing sleeve 24a, the bearing sleeve 24a can be a bearing sleeve, lubricating grease is injected into the inner wall of the bearing sleeve 24a to reduce abrasion, and the middle sections of the two cutting swing arms 25 are clamped on two sides of a shaft shoulder of the connecting rod shaft 24 through gaskets respectively to realize axial positioning.

The middle section of handle of a knife dabber 26 is equipped with handle of a knife dabber boss, and the major diameter part of handle of a knife dabber articulates in handle of a knife hinge hole 27a of handle of a knife 27 upper end through bearing housing 26a, and the lubrication of being convenient for slows down wearing and tearing, and the free end of two cutting swing arms 25 is respectively through the axial shoulder both sides of gasket centre gripping at the handle of a knife dabber, realizes axial positioning.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. A turf period cutting device of a turf cutter comprises a driving disc and is characterized in that: the cutting device comprises a driving disc, a connecting rod shaft, a box body fixed shaft and a box body fixed shaft, wherein the box body fixed shaft is fixed shaft, the box body fixed shaft is fixed shaft; the free end of the cutting swing arm is hinged to a cutter handle mandrel, the cutter handle mandrel is hinged to the upper portion of the cutter handle, a cutter handle guide block or a cutter handle guide body fixed on the box body is arranged on the periphery of the middle section of the cutter handle, and a cutting knife with a downward cutting edge is arranged at the lower end of the cutter handle.

2. A sod cycle cutter for a sod cutter as claimed in claim 1, wherein: the clutch mechanism comprises a clutch outer core and a clutch inner core, the periphery of the clutch outer core is embedded in the inner cavity of the disk sleeve of the driving disk and is matched and connected through a boss of the clutch outer core, an inner hole of the clutch outer core is sleeved on the periphery of the clutch inner core, and the clutch inner core is fixed on the driving shaft; a lock tongue chamber which extends along the axial direction and can accommodate a lock tongue and a lock tongue shaft is arranged on the circumference of the clutch inner core, and a shaft socket corresponding to the excircle of the lock tongue shaft is arranged at the bottom of the lock tongue chamber; the internal perisporium of the outer core of separation and reunion is the equipartition and has a plurality of outer core spring bolt draw-in grooves that supply the spring bolt embedding to combine, the root fixed connection of spring bolt is on the circumference of spring bolt axle one end, the axis of spring bolt axle is on a parallel with the axis of drive shaft.

3. A sod cycle cutter of a sod cutter as claimed in claim 2, wherein: the other end circumference of the lock tongue shaft is fixedly connected with a lock tongue swing arm which extends outwards along the radial direction of the lock tongue shaft, the lock tongue swing arm extends outwards from a fan-shaped gap of a swing arm limiting ring, and the outer circumference of the swing arm limiting ring is provided with a concave arc ring groove; the middle section of spring bolt swing arm is connected with the spring bolt extension spring, the spring bolt extension spring hold in the concave arc annular and the other end is fixed on the extension spring post head of swing arm spacing ring.

4. A sod cycle cutter of a sod cutter as claimed in claim 3, wherein: the pull force of spring bolt extension spring makes the free end of spring bolt keep the trend in the outer core spring bolt draw-in groove of embedding, the free end bottom of spring bolt swing arm supports and leans on the top at the ejector pin, the root of ejector pin is along radially fixing the one end at the ejector pin pivot, the middle section of ejector pin pivot passes from the axle sleeve of box, the other end of ejector pin pivot is fixed with along the ejector pin actuating arm of radial outside extension, the free end of ejector pin actuating arm is installed the probe and is connected with probe reset spring, the axis of probe and ejector pin pivot is on a parallel with the axis of signal disc, the circumference department that is close to of signal disc is fixed with at least one and promotes the probe and causes the wobbling trigger block of ejector pin actuating arm.

5. A turf cycle cutting apparatus for a sod cutter as claimed in claim 4, wherein: a signal panel hub is arranged in the center of the signal panel, a signal panel driving chain wheel is movably sleeved at one end of the signal panel hub, and a hollow signal panel short groove is formed in the position, close to the signal panel hub, of the signal panel; a chain wheel tension spring column head is fixed on the end face of a driving chain wheel of the signal panel, the end of the chain wheel tension spring column head penetrates through the short groove of the signal panel and is hinged with a signal panel tension spring, and the other end of the signal panel tension spring is hinged to the column head on the end face of the signal panel;

6. A sod cycle cutter of a sod cutter as claimed in claim 2, wherein: the clutch inner core is a stepped shaft, two ends of the clutch inner core are respectively sleeved with a spring bolt shaft seat, the spring bolt shaft seats are respectively abutted against shaft shoulders at two ends of the clutch inner core, the inner wall of each spring bolt shaft seat is respectively provided with a spring bolt shaft hole and a spring bolt shaft seat inner boss, two ends of each spring bolt shaft are respectively supported in the spring bolt shaft holes of the corresponding spring bolt shaft seats, the peripheries of the two spring bolt shaft seats are respectively sleeved with a driving disc bearing, and the driving disc bearings are respectively supported in inner holes at two ends of each driving disc sleeve; the clutch inner core is provided with an inner core axial key groove in the periphery, and the lock tongue shaft seat inner boss is respectively embedded in the corresponding inner core axial key groove.

7. A turf cycle cutting apparatus for a sod cutter as claimed in claim 6, wherein: the inner wall of the swing arm limiting ring is provided with a limiting ring inner boss which is embedded in a corresponding inner core axial key groove, and one side end face of the swing arm limiting ring sequentially abuts against the end face of an adjacent spring bolt shaft seat; the swing arm limiting ring and the adjacent spring bolt shaft seat are fixed on the clutch inner core by the fastening screw extending along the axial direction, or the swing arm limiting ring and the adjacent spring bolt shaft seat are connected with the clutch inner core in an axial limiting way through the clamp spring embedded into the annular groove at the end of the clutch inner core.

8. A turf cycle cutting apparatus for a sod cutter as claimed in claim 4, wherein: the drive sprocket of signal dish passes through signal drive chain and is connected with the transmission of signal small sprocket, the one end at the log jackshaft is fixed to the signal small sprocket, log sprocket two is installed to the other end of log jackshaft, log sprocket two is through log chain and log sprocket drive connection, the one end at log dish axle is fixed to log sprocket, the other end of log dish axle is fixed with the log dish, be fixed with a plurality of positions on the log dish and adjustable and be the fan-shaped fluted disc of central symmetric distribution.

9. A sod cycle cutter of a sod cutter as claimed in claim 1, wherein: the top hook of handle of a knife has the swing compensation extension spring, the other end hook of swing compensation extension spring is hung on the box.

10. A sod cycle cutter for a sod cutter as claimed in claim 1, wherein: the other end of the driving shaft is provided with a fixed-phase brake device, the fixed-phase brake device comprises a brake drum fixed on the driving shaft, a brake band is annularly sleeved on the circumference of the brake drum, one end of the brake band is fixed at the upper end of a brake lever, the upper end of the brake lever is hinged on a box body through a lever fixed shaft, the other end of the brake band is fixed at one end of a tightening screw, the other end of the tightening screw penetrates out of a through hole at the lower end of the brake lever, the outer end head of the tightening screw is sleeved with a pressure spring and is screwed with a tightening nut, and the tightening nut presses the pressure spring on the end face of a lower end hole of the brake lever through a gasket; one side of the brake drum is provided with a cam disc-shaped structure, the middle part of the brake lever is hinged with a brake signal roller, and the brake signal roller is attached to the periphery of the cam disc-shaped structure.

11. A sod cycle cutter for a sod cutter as claimed in claim 10, wherein: when the cutter handle is positioned at the top dead center position, the top point of the cam disc-shaped structure is contacted with the brake signal roller, the top of the ejector rod is supported below the bolt swing arm, and the clutch outer core is separated from the clutch inner core in a transmission way.

12. A sod cycle cutting apparatus for a sod cutter as claimed in any of claims 1 to 10, wherein: the middle section of drive shaft supports on the wall of box through two sets of box bearing frame, and the wave spring has been pressed respectively in the outside of two box bearing frame, the outside of wave spring is equipped with axial retaining ring respectively, axial retaining ring includes two semi-rings that the opening is in opposite directions respectively, and two semi-rings close the card and go into in the positioning ring groove of drive shaft, the outer fringe of two semi-rings is restricted the inner chamber at the bowl form clamp jointly.